5 more winds, thunderstorms, snow, fog and other inclement weather fabric machine should stop the construction work, and measures taken to prevent overturning. Municipal Construction Committee for the regulatory aspects of the concrete, and even extends to the use of safety equipment. Reporters learned yesterday from the Municipal Construction Committee, "Beijing construction concrete placing boom safely Interim Measures," was recently released, and execution in starting December 1.
This "spreader", is not an aspect to weave the warp and weft of the loom, but in the concrete construction industry in the top pouring a common device. From a distance, it looks like a miniature crane, also has a steel bottom bracket, the cross in the air, hanging on steel Traveling hopper car and construction workers in the bottom of the control position, the concrete pouring to the designated place.
The "Safety Management Interim Measures" Municipal Construction Committee this release, requiring at least five winds, thunderstorms, snow, fog and other inclement weather, cloth machine should stop construction work and measures taken to prevent overturning. In equipment inspection, repair, maintenance, it should be shut down, power off. Hydraulic fabric machine operation, repair and maintenance shall be the person responsible.
In addition, this approach also requires, fabric machine each installation, removal, displacement process, the overall contractor full-time security officer should next full stop supervision to ensure construction safety. Fabric machine after each shift is completed, by the general contractor to check and fill out a check each wire even if security "concrete fabric Shift Checklist" can be put into use after passing.
2015年12月30日星期三
2015年12月27日星期日
Japan will use water injection to the reactor concrete boom pump
According to Kyodo News 21 reported that Japan will use concrete boom pump to the Fukushima Daiichi nuclear power plant accident in the reactor water. After the truck boom extends up to about 58 meters, accurately to the waste water tank by remote control from a height.
It reported that the Japanese construction machinery to provide triple County's three truck has arrived at the scene, Gifu County a truck company will also join. Defense Minister Kitazawa handsome said it would use all the same model in Japan pump, in order to ensure sustainable conduct water operations.
It is reported that Japan used truck production from Germany, the body is about 15 meters, used in the construction of the commons upward transport concrete. This pump has been used allegedly blocked the work of the Soviet Chernobyl nuclear reactor accident in the former.
Folding Boom can remote operation from 100 to 300 meters away. After the installation of cameras to the top of the boom, the staff according to the image on the display, the reactor building 30 meters from the ground, the hole formed by the explosion of water to the spent fuel pools. Allegedly 100 tons per hour can filling.
Provides two sets of pump of Yokkaichi, Mie Prefecture, central member of the construction company president Hasegawa Code, said: "can accurately be water in the intense radiation away from the plant hope in times of crisis to help you a hand.." He also expressed concern that: " rushed to the scene as the operator of three members will be afraid of radiation. no problem, right? "
It reported that the Japanese construction machinery to provide triple County's three truck has arrived at the scene, Gifu County a truck company will also join. Defense Minister Kitazawa handsome said it would use all the same model in Japan pump, in order to ensure sustainable conduct water operations.
It is reported that Japan used truck production from Germany, the body is about 15 meters, used in the construction of the commons upward transport concrete. This pump has been used allegedly blocked the work of the Soviet Chernobyl nuclear reactor accident in the former.
Folding Boom can remote operation from 100 to 300 meters away. After the installation of cameras to the top of the boom, the staff according to the image on the display, the reactor building 30 meters from the ground, the hole formed by the explosion of water to the spent fuel pools. Allegedly 100 tons per hour can filling.
Provides two sets of pump of Yokkaichi, Mie Prefecture, central member of the construction company president Hasegawa Code, said: "can accurately be water in the intense radiation away from the plant hope in times of crisis to help you a hand.." He also expressed concern that: " rushed to the scene as the operator of three members will be afraid of radiation. no problem, right? "
2015年12月24日星期四
Note the use of concrete mixer truck
1, the hydraulic system pressure should comply with the instructions for use, and shall not be adjusted. Hydraulic oil and fuel oil should comply with the original requirements.
2, before loading concrete mixer truck, you should drain the remaining water and mix barrel debris. During transport to keep the rotation, to prevent concrete segregation. Before concrete mixer truck access to the site and unloading, should make full mixing drum to 14-18 rev / min rotation for 1-2 minutes, then invert discharge. Before reversing, should be parked mixing tube does not turn.
3, the ambient temperature is above +25 degrees Celsius, from the loading, transport, the discharge duration shall be more than 60 minutes, the ambient temperature is below +25 degrees Celsius, the above time shall not exceed 90 minutes.
4, winter construction machinery, should earnestly: before starting the check for icing; work when the barrel and mix carefully exclude residual water supply system, turn off the pump switch, the control lever in the "stop" position.
2, before loading concrete mixer truck, you should drain the remaining water and mix barrel debris. During transport to keep the rotation, to prevent concrete segregation. Before concrete mixer truck access to the site and unloading, should make full mixing drum to 14-18 rev / min rotation for 1-2 minutes, then invert discharge. Before reversing, should be parked mixing tube does not turn.
3, the ambient temperature is above +25 degrees Celsius, from the loading, transport, the discharge duration shall be more than 60 minutes, the ambient temperature is below +25 degrees Celsius, the above time shall not exceed 90 minutes.
4, winter construction machinery, should earnestly: before starting the check for icing; work when the barrel and mix carefully exclude residual water supply system, turn off the pump switch, the control lever in the "stop" position.
2015年12月23日星期三
Tower crane different classification
1, according to the structure type:
1) Fixed Crane Tower: The tower chassis by connecting member fixed to the foundation or the structure, conduct tower crane lifting operations.
2) Mobile tower crane: a running device, you can walk the tower crane.
3) self-elevating tower crane: through its own specialized equipment, increase, decrease tower section to change the lifting height of the tower crane, such as: attachment style and self overall climb (internal climbing) tower crane
Attached Tower: support means attached to the wall by anchoring the tower to the building of self-raising tower crane.
Inner climbing tower crane: Set inside the building, by supporting the structure of the special unit, the machine can be increased with the height of buildings and an elevated tower crane.
2, according to the rotary type points:
Slewing tower crane slewing ring provided at the upper portion of the tower crane tower) 1.
Slewing tower crane slewing ring set 2) in the bottom of the tower, the tower is rotated relative to the chassis of a tower crane.
3, according to the erection method points:
1) Non-self-erecting tower crane: relying on other lifting equipment for assembly into a machine tower crane erection.
2) self-erecting tower crane: relying on its own power units and agencies to achieve tower crane transport state and the working state of mutual conversion.
4, according to the amplitude points:
1) trolley tower crane: lifting trolley that run along the luffing jib tower cranes.
2) The boom luffing tower crane: luffing jib for the pitching motion of the tower crane.
3) folding jib tower crane: lifting operations as needed, jib tower crane can be bent. It can also have performance luffing boom and the trolley.
1) Fixed Crane Tower: The tower chassis by connecting member fixed to the foundation or the structure, conduct tower crane lifting operations.
2) Mobile tower crane: a running device, you can walk the tower crane.
3) self-elevating tower crane: through its own specialized equipment, increase, decrease tower section to change the lifting height of the tower crane, such as: attachment style and self overall climb (internal climbing) tower crane
Attached Tower: support means attached to the wall by anchoring the tower to the building of self-raising tower crane.
Inner climbing tower crane: Set inside the building, by supporting the structure of the special unit, the machine can be increased with the height of buildings and an elevated tower crane.
2, according to the rotary type points:
Slewing tower crane slewing ring provided at the upper portion of the tower crane tower) 1.
Slewing tower crane slewing ring set 2) in the bottom of the tower, the tower is rotated relative to the chassis of a tower crane.
3, according to the erection method points:
1) Non-self-erecting tower crane: relying on other lifting equipment for assembly into a machine tower crane erection.
2) self-erecting tower crane: relying on its own power units and agencies to achieve tower crane transport state and the working state of mutual conversion.
4, according to the amplitude points:
1) trolley tower crane: lifting trolley that run along the luffing jib tower cranes.
2) The boom luffing tower crane: luffing jib for the pitching motion of the tower crane.
3) folding jib tower crane: lifting operations as needed, jib tower crane can be bent. It can also have performance luffing boom and the trolley.
2015年12月20日星期日
Truck-Mounted boom pump operating systems
The late 1960s, the introduction of 16 meters Truemax truck-mounted boom pump; in 1986, it developed the world's longest truck-mounted boom pump 62 meters birth. All told, German with nearly two decades, the boom lift height of nearly 40 meters. And again, this record will refresh, and wait for a full 20 years, and this time the protagonist has become Chinese companies. Concrete pump in it step by step with the new new technology:
(1) energy saving, environmental protection has become the development trend of pump.
Improve concrete pump energy saving, environmental performance has become a trend, wind cooling gradually to replace water cooling, engine emission standards also increased, mostly reach Europe Ⅱ or Euro Ⅲ standard.
(2) the control system more functional.
Concrete pump truck boom started nearly two years of rapid development of electrical systems, domestic manufacturers to produce concrete pump electric control system from the traditional PLC control to dedicated controllers and computer intelligent control, via a touch screen, you can achieve human-computer dialogue, The various operating parameters can be stored and displayed on the vehicle to achieve automatic monitoring. Once the machine is running fails, except alarm outside also brings up the relevant parameters for fault analysis, diagnosis. Meanwhile, the application of intelligent control systems technology boom, boom, etc. to achieve a high level of amplitude and intelligent casting.
(3) The structure is more applicable.
Concrete pump truck boom started work often limited by the upper space is required to start when the top height of the lowest boom, boom four fold following generally use a single R or Z-shaped pattern. More than five boom due to space limitations, the type commonly used to achieve RZ combination folding boom extension and retraction, applicability, enhanced mobility and flexibility, especially in the construction of tunnels and indoor work efficiency has improved significantly. Domestic boom length of nearly two years have increasingly long trend, the future will have a longer boom concrete pump truck to the market. In addition, the boom started concrete pump leg work often limited by floor space, especially large boom started concrete pump, concrete pump truck boom started therefore outrigger design showing a personalized, diversified characteristics.
(4) Concrete greater displacement volume.
Centre higher pressure pumping system, greater transport capacity, will become the future development trend of the domestic boom started concrete pump central pumping system. With the boom started concrete pump truck boom bigger and higher, bigger and bigger models, the delivery cylinder bore is also bigger and bigger, and because the progress of the project have become increasingly demanding, requires pumping capacity at 80 ~ 120m3 / h of the project, more and more large displacement will become the future development direction of concrete pump truck boom started. In addition, more and more high pumping pressure. Concrete outlet pressure has now reached 22MPa, but also continue to improve the trend.
(1) energy saving, environmental protection has become the development trend of pump.
Improve concrete pump energy saving, environmental performance has become a trend, wind cooling gradually to replace water cooling, engine emission standards also increased, mostly reach Europe Ⅱ or Euro Ⅲ standard.
(2) the control system more functional.
Concrete pump truck boom started nearly two years of rapid development of electrical systems, domestic manufacturers to produce concrete pump electric control system from the traditional PLC control to dedicated controllers and computer intelligent control, via a touch screen, you can achieve human-computer dialogue, The various operating parameters can be stored and displayed on the vehicle to achieve automatic monitoring. Once the machine is running fails, except alarm outside also brings up the relevant parameters for fault analysis, diagnosis. Meanwhile, the application of intelligent control systems technology boom, boom, etc. to achieve a high level of amplitude and intelligent casting.
(3) The structure is more applicable.
Concrete pump truck boom started work often limited by the upper space is required to start when the top height of the lowest boom, boom four fold following generally use a single R or Z-shaped pattern. More than five boom due to space limitations, the type commonly used to achieve RZ combination folding boom extension and retraction, applicability, enhanced mobility and flexibility, especially in the construction of tunnels and indoor work efficiency has improved significantly. Domestic boom length of nearly two years have increasingly long trend, the future will have a longer boom concrete pump truck to the market. In addition, the boom started concrete pump leg work often limited by floor space, especially large boom started concrete pump, concrete pump truck boom started therefore outrigger design showing a personalized, diversified characteristics.
(4) Concrete greater displacement volume.
Centre higher pressure pumping system, greater transport capacity, will become the future development trend of the domestic boom started concrete pump central pumping system. With the boom started concrete pump truck boom bigger and higher, bigger and bigger models, the delivery cylinder bore is also bigger and bigger, and because the progress of the project have become increasingly demanding, requires pumping capacity at 80 ~ 120m3 / h of the project, more and more large displacement will become the future development direction of concrete pump truck boom started. In addition, more and more high pumping pressure. Concrete outlet pressure has now reached 22MPa, but also continue to improve the trend.
2015年12月18日星期五
Advantages analyze commodity concrete batching station
With the continuous development of concrete machinery industry, commercial concrete batchingstations have mushroomed emerging. Commercial concrete batching station is mainly composed of mixing system, aggregate supply system, powder storage systems, measurement systems, control systems and external ancillary equipment.
Commodity concrete batching stations compared with conventional batching station, a lot of its advantages, the following main points together, listen to Hangzhou Truemax machinery Limited to give you specific explanation below:
First, excellent performance
Twin-shaft compulsory mixer mixing ability, uniform mixing quality and high productivity. For dry hard, semi-hard, plastic and various proportions of concrete mixing good effect. Lubrication system, the spindle drive system adopts full set of imported hydraulic opening mechanism which can adjust the discharge opening degree required. Mixing console mix-axis anti-blocking technology to effectively prevent cement caking on the shaft, shaft seal uses a unique multi-sealed structure, effectively prevent mortar leakage and ensure the continued long-term operation of the entire mixing system. Cleaning system uses high pressure water pump automatic control and manual control,
Each outlet hole is located just above the stirring shaft, stirring improve efficiency, increase water mist to reduce dust pollution and effectively remove cement agglomeration.
Second, the delivery device
It may be provided with three to five aggregate storage, the lower aggregate positions for individual and aggregate aggregate weighing hopper release belt as required. With a loader or belt conveyor to aggregate feed bin. Steel silo can be designed. The lower part of a small warehouse Optional less moisture meter. Aggregate enhance inclined belt conveyor is responsible for the transition to aggregate storage silo, inclined belt tension using a heavy hammer, reliable transmission angle ≤18 °, may also be herringbone or troughed belt or bucket elevator on material, in order to reduce the area.
Third, environmental performance
All of the powder materials from the materials, ingredients, measuring, stirring the materials are fed in a closed state. Blender lid, metering cement warehouse, fly ash measurement positions are connected to the dust discharge pipe filter, aggregate filler panels set up dust resistance, thereby reducing dust emissions. Closed stirring the main building and belt conveyor structure, greatly reduces the dust and noise may pollute the environment. Negative pressure dust removal and special fiber cloth, so that dust produced when the feed completely into the dust without spread to the surrounding, and the collected dust can be recycled conveniently and effectively protect the environment. Users can also choose to import dust removal system.
In addition to the excellent performance, the commodity concrete batching station as well as good stirring performance, maintenance and repair parts of the complete equipment or maintenance ladder with a platform to facilitate inspection and maintenance operations, cleaning with a host of red pumps and two manual operations devices. Platform floor structure and aggregate belt conveyor fully enclosed structure, to ensure that all operations can be carried out regardless of the weather. Given the excellent characteristics of commodity concrete batching station, its market space will infinitely expand over time.
Commodity concrete batching stations compared with conventional batching station, a lot of its advantages, the following main points together, listen to Hangzhou Truemax machinery Limited to give you specific explanation below:
First, excellent performance
Twin-shaft compulsory mixer mixing ability, uniform mixing quality and high productivity. For dry hard, semi-hard, plastic and various proportions of concrete mixing good effect. Lubrication system, the spindle drive system adopts full set of imported hydraulic opening mechanism which can adjust the discharge opening degree required. Mixing console mix-axis anti-blocking technology to effectively prevent cement caking on the shaft, shaft seal uses a unique multi-sealed structure, effectively prevent mortar leakage and ensure the continued long-term operation of the entire mixing system. Cleaning system uses high pressure water pump automatic control and manual control,
Each outlet hole is located just above the stirring shaft, stirring improve efficiency, increase water mist to reduce dust pollution and effectively remove cement agglomeration.
Second, the delivery device
It may be provided with three to five aggregate storage, the lower aggregate positions for individual and aggregate aggregate weighing hopper release belt as required. With a loader or belt conveyor to aggregate feed bin. Steel silo can be designed. The lower part of a small warehouse Optional less moisture meter. Aggregate enhance inclined belt conveyor is responsible for the transition to aggregate storage silo, inclined belt tension using a heavy hammer, reliable transmission angle ≤18 °, may also be herringbone or troughed belt or bucket elevator on material, in order to reduce the area.
Third, environmental performance
All of the powder materials from the materials, ingredients, measuring, stirring the materials are fed in a closed state. Blender lid, metering cement warehouse, fly ash measurement positions are connected to the dust discharge pipe filter, aggregate filler panels set up dust resistance, thereby reducing dust emissions. Closed stirring the main building and belt conveyor structure, greatly reduces the dust and noise may pollute the environment. Negative pressure dust removal and special fiber cloth, so that dust produced when the feed completely into the dust without spread to the surrounding, and the collected dust can be recycled conveniently and effectively protect the environment. Users can also choose to import dust removal system.
In addition to the excellent performance, the commodity concrete batching station as well as good stirring performance, maintenance and repair parts of the complete equipment or maintenance ladder with a platform to facilitate inspection and maintenance operations, cleaning with a host of red pumps and two manual operations devices. Platform floor structure and aggregate belt conveyor fully enclosed structure, to ensure that all operations can be carried out regardless of the weather. Given the excellent characteristics of commodity concrete batching station, its market space will infinitely expand over time.
How to reduce the maintenance cost of concrete mixer
As one of the important parts of production cost, the cost of equipment maintenance has been put on the agenda. To reduce equipment maintenance costs, concrete mixer production enterprises can according to their own actual situation, concrete batching plant to focus on the following several problems.
First, as manufacturers of spare parts to good quality, excellent quality of the spare parts can not only help the maintenance personnel timely solve the fault, but also can improve the reliability of the whole system, prolonging the service life of the parts and improve the overall performance of the equipment. As the user should strengthen the use of spare parts for the repair, the damaged spare parts in a lot of repair after you can re-use. To strengthen the production process of spare parts management, and to do a good job in the daily maintenance system, to develop a strict maintenance system, prompting the operating personnel in strict accordance with the regulations to do, to find fault hidden trouble in the bud, to extend the service life of spare parts.
Reduce the maintenance costs of concrete mixer equipment is not through the one or two aspects of the effort to solve the problem, must be through the effective combination of all aspects to make the problem completely solved, and need to persevere in order to achieve good results.
First, as manufacturers of spare parts to good quality, excellent quality of the spare parts can not only help the maintenance personnel timely solve the fault, but also can improve the reliability of the whole system, prolonging the service life of the parts and improve the overall performance of the equipment. As the user should strengthen the use of spare parts for the repair, the damaged spare parts in a lot of repair after you can re-use. To strengthen the production process of spare parts management, and to do a good job in the daily maintenance system, to develop a strict maintenance system, prompting the operating personnel in strict accordance with the regulations to do, to find fault hidden trouble in the bud, to extend the service life of spare parts.
Reduce the maintenance costs of concrete mixer equipment is not through the one or two aspects of the effort to solve the problem, must be through the effective combination of all aspects to make the problem completely solved, and need to persevere in order to achieve good results.
2015年12月16日星期三
Three large concrete mixer truck fault analysis
The car also has a life history of each car important new to old, from newborn to phase out, in the process, also like humans, various kinds of "illness", then in the case of concrete mixers upload process to "illness", we how to remedy it? Here are some common failure analysis coat, hoping to help the majority of riders and friends.
For faults, we must first pay attention to understand the nature of the fault appears: a sudden or gradual? Is a new car or fails to appear for a period of time? How long age of the vehicle? Are there laws fault? Overloading and empty car Symptom whether to change? High speed and whether there are differences Symptom low speeds? For failure analysis of these factors have important reference value.
1, tanks shake: concrete mixer tank in the production process by machining to ensure that the center of gravity on the axis of the tank, so the tank during normal operation is stable, however, because the product material or material uneven operation will lead to shift the center of gravity of the tank, then through the center of gravity of both the upper and lower jitter point occurs when the tank runs. Jitter performance since the product material failure caused by: 1, shake the tank operated with cyclical changes, 2, tanks shake no more than twice a week operation. Such a failure can be obtained by marking to identify the body. Of course, does not rule out the processing tank causes tank eccentric, most OEMs have stringent requirements for the processing tank, tank eccentric possibility is very small, in addition, all the concrete truck mixer at the factory will be debugged , the tank will not eccentric mixer factory, so for the user, the possibility is very low tank eccentric.
If the jitter is not the law, it is necessary to observe whether the muddy oil tank, running any abnormal noise, consider the possibility of air entrainment. Of course, do not forget to check the oil deceleration, gear exclude the possibility of damage, the deceleration will be mixed with chunks of metal particles in the oil when the gear was damaged.
2, the noise: firstly, the hydraulic system itself will sound when the output power, particularly in the high-power output, so if there are empty regularity noise power output, the tank should be excluded from the possibility of serious product material. Noise is divided into two types: a dull roar, a sharp cry clamor. For the former, the air mixed with the reasons should be considered, whether the system is short of oil? Replacing the hydraulic oil filter and the last is when? System piping oil leaks? Clear whether oil tank? Clamor for sharp sounds, but also points pressure overflow noise and mechanical noise causes when overloaded, if the load is too large and exceeds the set value of the system relief valve, the system will overflow, then it will produce sharp clamor sounds, accompanied by the rapid increase in oil. Mechanical causes of noise often as the engine speed is increased to produce.
3, heavy weakness: weakness for overloading faults, we must first understand the age of the vehicle, and the reference vehicle maintenance conditions, in particular, should open the filter inspection, if found metal powder, copper and even chunks of metal foam, that is, within the filter It may conclude pump or motor wear.
For faults, we must first pay attention to understand the nature of the fault appears: a sudden or gradual? Is a new car or fails to appear for a period of time? How long age of the vehicle? Are there laws fault? Overloading and empty car Symptom whether to change? High speed and whether there are differences Symptom low speeds? For failure analysis of these factors have important reference value.
1, tanks shake: concrete mixer tank in the production process by machining to ensure that the center of gravity on the axis of the tank, so the tank during normal operation is stable, however, because the product material or material uneven operation will lead to shift the center of gravity of the tank, then through the center of gravity of both the upper and lower jitter point occurs when the tank runs. Jitter performance since the product material failure caused by: 1, shake the tank operated with cyclical changes, 2, tanks shake no more than twice a week operation. Such a failure can be obtained by marking to identify the body. Of course, does not rule out the processing tank causes tank eccentric, most OEMs have stringent requirements for the processing tank, tank eccentric possibility is very small, in addition, all the concrete truck mixer at the factory will be debugged , the tank will not eccentric mixer factory, so for the user, the possibility is very low tank eccentric.
If the jitter is not the law, it is necessary to observe whether the muddy oil tank, running any abnormal noise, consider the possibility of air entrainment. Of course, do not forget to check the oil deceleration, gear exclude the possibility of damage, the deceleration will be mixed with chunks of metal particles in the oil when the gear was damaged.
2, the noise: firstly, the hydraulic system itself will sound when the output power, particularly in the high-power output, so if there are empty regularity noise power output, the tank should be excluded from the possibility of serious product material. Noise is divided into two types: a dull roar, a sharp cry clamor. For the former, the air mixed with the reasons should be considered, whether the system is short of oil? Replacing the hydraulic oil filter and the last is when? System piping oil leaks? Clear whether oil tank? Clamor for sharp sounds, but also points pressure overflow noise and mechanical noise causes when overloaded, if the load is too large and exceeds the set value of the system relief valve, the system will overflow, then it will produce sharp clamor sounds, accompanied by the rapid increase in oil. Mechanical causes of noise often as the engine speed is increased to produce.
3, heavy weakness: weakness for overloading faults, we must first understand the age of the vehicle, and the reference vehicle maintenance conditions, in particular, should open the filter inspection, if found metal powder, copper and even chunks of metal foam, that is, within the filter It may conclude pump or motor wear.
2015年12月9日星期三
CONCRETE MIXER OPERATING MATTERS
1, with the gap measuring gauge detected between the blade and the pot wall should be 3mm ± 2mm, if the ultra-poor gap, you can adjust the vertical position of the blade to achieve a predetermined range.
2, stirring blades after each use, the pot should be cleaned, electrical parts should avoid strenuous vibration, away from water and high temperature, pay attention to dust.
I know to use the mixer, in order to better improve engineering efficiency.
10 Select the concrete mixer of choice There are three kinds namely the amount and duration requirements according to project selection, according to the design of concrete type selection, according to the composition and consistency characteristics of concrete aspects of selection.
1, according to the quantities and duration required to select concrete projects large and long duration, should use a medium or large stationary concrete mixer or mixing station. Such as small quantities of concrete and the duration is short, medium and small portable mixer should be chosen.
2, according to the type of design choices concrete batching plant concrete plastic or semi-plastic formula when, should use self-loading mixer. As stirring as high strength concrete, dry hard or lightweight concrete, should use forced mixer.
3, according to the composition of the concrete characteristics and consistency, the consistency of selection such as mixing concrete aggregate size small and large, should use larger capacity self-loading mixer. Such as when stirring large and consistency of concrete aggregate size large, should use the faster speed of the mixing tube self-loading mixer. Large aggregate size as consistency hours, should use forced mixer or in small capacity cone reversal discharging mixer.
2, stirring blades after each use, the pot should be cleaned, electrical parts should avoid strenuous vibration, away from water and high temperature, pay attention to dust.
I know to use the mixer, in order to better improve engineering efficiency.
10 Select the concrete mixer of choice There are three kinds namely the amount and duration requirements according to project selection, according to the design of concrete type selection, according to the composition and consistency characteristics of concrete aspects of selection.
1, according to the quantities and duration required to select concrete projects large and long duration, should use a medium or large stationary concrete mixer or mixing station. Such as small quantities of concrete and the duration is short, medium and small portable mixer should be chosen.
2, according to the type of design choices concrete batching plant concrete plastic or semi-plastic formula when, should use self-loading mixer. As stirring as high strength concrete, dry hard or lightweight concrete, should use forced mixer.
3, according to the composition of the concrete characteristics and consistency, the consistency of selection such as mixing concrete aggregate size small and large, should use larger capacity self-loading mixer. Such as when stirring large and consistency of concrete aggregate size large, should use the faster speed of the mixing tube self-loading mixer. Large aggregate size as consistency hours, should use forced mixer or in small capacity cone reversal discharging mixer.
2015年12月8日星期二
8 features selection of a small concrete pump
Small concrete pump long as it is quality performance, component-based, brand, corporate R & D capabilities, production history for assistance, after-sales service as well as the final price of products is also crucial.
First, the concrete pouring elements
Small concrete pump selection should be based on concrete projects considered as a whole row of objects and characteristics and maximum transmission distance requirements, concrete construction plans, as well as the specific conditions in the form of concrete pumps.
Second, the structure and types of buildings
Small concrete pump models with different performance is also different, in addition to considering possible amount of concrete pouring, but also consider the selection of aircraft type structure of the building, construction technology requirements, site conditions, and environment and so on. The main performance parameters of concrete pump is generally used in construction machinery requirements should be consistent with, or slightly larger, if the performance is too large, the utilization becomes low, too small, not only can not meet the requirements will accelerate the loss of concrete pump truck.
Third, the construction adaptability
Small concrete pump a lot of flexibility, and the higher the height of the boom, pouring height and fabrics radius is bigger, stronger construction adaptability, should try to use in the construction of high concrete pump truck boom. Boom length of 28-36 meters of concrete pump truck on the market large wide range of products, accounting for about three-quarters. Long arm concrete pump will be the construction of major models.
Fourth, the amount used in the construction business and the number of the concrete pump
According to the amount of concrete pouring, the actual delivery time single volume and construction work are calculated. For those disposable concrete pouring concrete pumping a large amount of construction work, except in accordance with the calculation to determine the outside, it should have a certain amount of reserve.
Fifth, product configuration
Small concrete pump product performance favorably in the selection is to be strong choice. If the selection of high-value concrete pump, so its standard products also increased. The main components of the product quality from the inherent quality to the appearance of quality and high-value vehicle to be adapted.
Six, hydraulic technology
Concrete pump power system with full hydraulic technology, so to consider whether all hydraulic technology advanced, how the hydraulic vision quality. Power from the engine, so the engine in addition to considering performance and quality, but also consider the performance of the car chassis, carrying capacity and quality, and so on.
Seven, operating system
EC provided concrete pump operation control system manually, wired and wireless, and the county is convenient and flexible control, wireless remote control can be remotely operated, in the event of circuit failure, may also be manually operated.
Eight, after-sales service
Concrete pump as special vehicles for its particularity of function, safety and mechanical properties as well as manufacturers of after-sales service and spare parts supply should be requested. Otherwise, once the accident, not only affect the construction schedule, it will produce unimaginable consequences.
Better choice concrete pump can make the work efficiency becomes high, maximizing power savings, but can also relieve some worries.
First, the concrete pouring elements
Small concrete pump selection should be based on concrete projects considered as a whole row of objects and characteristics and maximum transmission distance requirements, concrete construction plans, as well as the specific conditions in the form of concrete pumps.
Second, the structure and types of buildings
Small concrete pump models with different performance is also different, in addition to considering possible amount of concrete pouring, but also consider the selection of aircraft type structure of the building, construction technology requirements, site conditions, and environment and so on. The main performance parameters of concrete pump is generally used in construction machinery requirements should be consistent with, or slightly larger, if the performance is too large, the utilization becomes low, too small, not only can not meet the requirements will accelerate the loss of concrete pump truck.
Third, the construction adaptability
Small concrete pump a lot of flexibility, and the higher the height of the boom, pouring height and fabrics radius is bigger, stronger construction adaptability, should try to use in the construction of high concrete pump truck boom. Boom length of 28-36 meters of concrete pump truck on the market large wide range of products, accounting for about three-quarters. Long arm concrete pump will be the construction of major models.
Fourth, the amount used in the construction business and the number of the concrete pump
According to the amount of concrete pouring, the actual delivery time single volume and construction work are calculated. For those disposable concrete pouring concrete pumping a large amount of construction work, except in accordance with the calculation to determine the outside, it should have a certain amount of reserve.
Fifth, product configuration
Small concrete pump product performance favorably in the selection is to be strong choice. If the selection of high-value concrete pump, so its standard products also increased. The main components of the product quality from the inherent quality to the appearance of quality and high-value vehicle to be adapted.
Six, hydraulic technology
Concrete pump power system with full hydraulic technology, so to consider whether all hydraulic technology advanced, how the hydraulic vision quality. Power from the engine, so the engine in addition to considering performance and quality, but also consider the performance of the car chassis, carrying capacity and quality, and so on.
Seven, operating system
EC provided concrete pump operation control system manually, wired and wireless, and the county is convenient and flexible control, wireless remote control can be remotely operated, in the event of circuit failure, may also be manually operated.
Eight, after-sales service
Concrete pump as special vehicles for its particularity of function, safety and mechanical properties as well as manufacturers of after-sales service and spare parts supply should be requested. Otherwise, once the accident, not only affect the construction schedule, it will produce unimaginable consequences.
Better choice concrete pump can make the work efficiency becomes high, maximizing power savings, but can also relieve some worries.
2015年12月7日星期一
Manual placing boom Concrete Placement Application
1, after pouring is completed, check whether the reinforced concrete surface contamination, and promptly cleaned. Just after the above requirements will be able to ensure the quality of the operation of pouring concrete.
2, should be stratified pouring concrete segments, each pouring height should be determined according to the structural characteristics and reinforced density conditions. Vibrators generally stratification height is 1.25 times the length of the active portion, the maximum does not exceed 500 mm; layer thickness of the plate vibrator 200 mm.
3, start the vibrator, vibrating hand holding the upper end of the shaft vibrator hose, quickly insert inside the concrete, when vibrators, vibrator up and down slightly twitch, vibration time is 20 to 30 seconds, but no concrete placing boom surface bubbles, no significant subsidence, surface and the surface of the horizontal pan-pulp prevail. Use vibrators should do push-pull slow, evenly interpolated point to point by point move, according to the order can not be missed, so that even the tap. Mobile spaced not more than 1.5 times the radius of action rods (typically 300 ~ 400 mm), close to the template distance of not less than 200 mm. The vibrator should be inserted into the lower layer of the concrete surface 50 ~ 100 mm, in order to eliminate the seam between the two layers. Moving pitch flat plates vibrator should be able to guarantee cover vibrator has tapped part of the edge.
4, pouring concrete machinery should be carried out continuously. If it is necessary intermittent, intermittent time it should be as short as possible and should be before the initial setting of concrete front layer, the second layer of concrete pouring is completed. The maximum time interval should be all varieties of cement and concrete to determine the initial setting of conditions, usually more than two hours should be construction joint.
5, should send someone pouring steel template frequently observed, reserved holes, embedded parts, dowels, etc. Have displacement deformation or blockage, identify problems and should be watered immediately trimmed completed before the initial setting of concrete has been poured.
2, should be stratified pouring concrete segments, each pouring height should be determined according to the structural characteristics and reinforced density conditions. Vibrators generally stratification height is 1.25 times the length of the active portion, the maximum does not exceed 500 mm; layer thickness of the plate vibrator 200 mm.
3, start the vibrator, vibrating hand holding the upper end of the shaft vibrator hose, quickly insert inside the concrete, when vibrators, vibrator up and down slightly twitch, vibration time is 20 to 30 seconds, but no concrete placing boom surface bubbles, no significant subsidence, surface and the surface of the horizontal pan-pulp prevail. Use vibrators should do push-pull slow, evenly interpolated point to point by point move, according to the order can not be missed, so that even the tap. Mobile spaced not more than 1.5 times the radius of action rods (typically 300 ~ 400 mm), close to the template distance of not less than 200 mm. The vibrator should be inserted into the lower layer of the concrete surface 50 ~ 100 mm, in order to eliminate the seam between the two layers. Moving pitch flat plates vibrator should be able to guarantee cover vibrator has tapped part of the edge.
4, pouring concrete machinery should be carried out continuously. If it is necessary intermittent, intermittent time it should be as short as possible and should be before the initial setting of concrete front layer, the second layer of concrete pouring is completed. The maximum time interval should be all varieties of cement and concrete to determine the initial setting of conditions, usually more than two hours should be construction joint.
5, should send someone pouring steel template frequently observed, reserved holes, embedded parts, dowels, etc. Have displacement deformation or blockage, identify problems and should be watered immediately trimmed completed before the initial setting of concrete has been poured.
2015年12月6日星期日
Talking about the development trend of future building hoist
Construction hoist is a hoist carrying tools commonly used in building construction, the elevator market in the country, due to the rapid development trend of engineering machinery, expanding market share, to a certain extent, promoted the development of construction of the lift industry, due to the aspects of domestic work does not stop building aspect also NIE attenuation trend,building hoist have a very huge market of the future.
Faced with a huge market for the development of domesticbuilding hoist, naturally attract the participation of many investors, there are many in the industry think businesses will be developed into the industry, leading to more intense competition in the industry, but also to the original businesses bring a lot of pressure.
Faced with broad market space for development and progress of science and technology to deal with lifts, building hoists will advance towards the following aspects in the future development.
1, humane, with the continuous progress of science and technology, there will be a lot of construction hoist variable capacitance in such a social environment, humane, users experience feelings of stress has become a part of the product development. Construction machinery when development continues to attach importance to the applicable product quality, technology as well as products. Advantages construction elevator, because it is very unique, is also rather special case. In product development and research must take into account when the use of products and conditions in the development of a comprehensive medium-sized machine time to manufacturing technology.
2, intelligent, this is the future development path will take the major machinery in the future. Product development and innovation must be under the foot, not only to take into account the user’s usage, as well as to provide users with a comfortable driving conditions, on this basis, to greatly increase the manufacturing technology to maximize the development of product characteristics . When the user through the operation panel can be used to know the technical and functional products, such as when using maximum mechanical performance.
Faced with a huge market for the development of domesticbuilding hoist, naturally attract the participation of many investors, there are many in the industry think businesses will be developed into the industry, leading to more intense competition in the industry, but also to the original businesses bring a lot of pressure.
Faced with broad market space for development and progress of science and technology to deal with lifts, building hoists will advance towards the following aspects in the future development.
1, humane, with the continuous progress of science and technology, there will be a lot of construction hoist variable capacitance in such a social environment, humane, users experience feelings of stress has become a part of the product development. Construction machinery when development continues to attach importance to the applicable product quality, technology as well as products. Advantages construction elevator, because it is very unique, is also rather special case. In product development and research must take into account when the use of products and conditions in the development of a comprehensive medium-sized machine time to manufacturing technology.
2, intelligent, this is the future development path will take the major machinery in the future. Product development and innovation must be under the foot, not only to take into account the user’s usage, as well as to provide users with a comfortable driving conditions, on this basis, to greatly increase the manufacturing technology to maximize the development of product characteristics . When the user through the operation panel can be used to know the technical and functional products, such as when using maximum mechanical performance.
2015年12月1日星期二
It should be clear two requirements before selecting concrete batching plant
Concrete batching plant also has a lot of knowledge, where we put this knowledge Masatoshi point a small sum, in order to facilitate a more detailed understanding of the majority of users batching plant. The role and user first concrete batching plant right choice for their proper batching plant; concrete batching plant is mainly used in the production of concrete, high production efficiency and high degree of automation, save labor, save time, speed up the progress of the project.
Users choose from when batching plant, certain progress should first figure out their own projects and the demand for, and then understand the stirring performance and productivity of the station, and then to choose a suitable for their own concrete batching plant. Second, when concrete batching plant used to pay attention to what; batching plant to ensure clean each device is necessary, the user should always check each concrete batching plant equipment, the best possible trouble, we need to add lubricant where you want to add timely. Finally is the management of concrete batching plant; batching plant is a relatively large device, also need a lot of people to manage, so the user must have a sound management program, so no matter what kind of batching plant allows problems orderly conduct of the process.
Users choose from when batching plant, certain progress should first figure out their own projects and the demand for, and then understand the stirring performance and productivity of the station, and then to choose a suitable for their own concrete batching plant. Second, when concrete batching plant used to pay attention to what; batching plant to ensure clean each device is necessary, the user should always check each concrete batching plant equipment, the best possible trouble, we need to add lubricant where you want to add timely. Finally is the management of concrete batching plant; batching plant is a relatively large device, also need a lot of people to manage, so the user must have a sound management program, so no matter what kind of batching plant allows problems orderly conduct of the process.
2015年11月30日星期一
You must know the tower crane safety management knowledge
As a crane practitioners, in addition to playing a "mainstay" role in building construction, but also an important part of safety in production. According to long-term service crane driver, commander summed up the crane driver safety fifteen issues, and I hope to be helpful crane training.
1, as a crane driver, the body must be healthy, two should maintain good vision, no color blindness, hearing no sensitive ears. Must pass safety training, special operations personnel to obtain operating permits before they operate independently.
2, the crane hook must be sensitive, rope drum, broken rope safety device, must have a valid ultra limit, amplitude limit, walking limit, torque limiter, the cab lifting stopper, etc., up ladder due retainer.
3, the crane driver must be familiar with the operation of the performance of construction crane, operated by crane to relevant regulations, it is strictly prohibited illegal operations. Should be familiar with the mechanical maintenance, repair knowledge, according to the provisions of the machinery for routine maintenance. It is particularly worth mentioning is that second-hand crane during maintenance should also check their useful life is in line with the provisions of the specification and the relevant departments.
4, the crane driver before the job should lift rail tongs, remove obstacles on the track, tighten the screws splints; hanging should be checked again before use.
5, crane personnel in the job, it should open the cab window, pay attention to traffic signals; cab heating in winter, there should be fire, electric shock measures.
6, after passing the acceptance test the crane installation can be put into use. Do not use without the acceptance or non-acceptance of the crane.
7, crane rail travel to near the limit switch, should slow down in advance parking; signal is unknown or may cause an accident, you should pause operation.
8, when more than one tower crane joint operation, should pay attention to maintaining the respective operating distance.
9, when the object lifting ban on the article station or for processing.
10, when lifting someone can not lower the boom to stay or walk, the boom, the object must be kept a safe distance from overhead wires; lifting must adhere to the "do not hang ten" safe operating regulations.
11, lifting heavy non-free-fall, with a slow decline in the weight drop foot brake or hand brake control.
12, when the tower crane lifting load at or near full capacity, non-landed arm or two actions simultaneously.
13, after the job is completed, the crane should be parked in the middle of the track, the arm should not be too high, it should forward air source, card grip rail clamp, cut off the power; lifting objects should be put down, stopped brake lever in neutral and closed lock.
14 In addition, self-elevating tower crane when lifting objects, balance weight must be moved to a predetermined position.
15, must relax tower ceiling rose cable, relaxed length should be slightly larger than the total lifting height, and fixing the cable reel; should be closer to lifting the car and the counterweight tower cap and stopped rotating part, is strictly prohibited Tower cap rotation. Source: HC Engineering Machinery Network
1, as a crane driver, the body must be healthy, two should maintain good vision, no color blindness, hearing no sensitive ears. Must pass safety training, special operations personnel to obtain operating permits before they operate independently.
2, the crane hook must be sensitive, rope drum, broken rope safety device, must have a valid ultra limit, amplitude limit, walking limit, torque limiter, the cab lifting stopper, etc., up ladder due retainer.
3, the crane driver must be familiar with the operation of the performance of construction crane, operated by crane to relevant regulations, it is strictly prohibited illegal operations. Should be familiar with the mechanical maintenance, repair knowledge, according to the provisions of the machinery for routine maintenance. It is particularly worth mentioning is that second-hand crane during maintenance should also check their useful life is in line with the provisions of the specification and the relevant departments.
4, the crane driver before the job should lift rail tongs, remove obstacles on the track, tighten the screws splints; hanging should be checked again before use.
5, crane personnel in the job, it should open the cab window, pay attention to traffic signals; cab heating in winter, there should be fire, electric shock measures.
6, after passing the acceptance test the crane installation can be put into use. Do not use without the acceptance or non-acceptance of the crane.
7, crane rail travel to near the limit switch, should slow down in advance parking; signal is unknown or may cause an accident, you should pause operation.
8, when more than one tower crane joint operation, should pay attention to maintaining the respective operating distance.
9, when the object lifting ban on the article station or for processing.
10, when lifting someone can not lower the boom to stay or walk, the boom, the object must be kept a safe distance from overhead wires; lifting must adhere to the "do not hang ten" safe operating regulations.
11, lifting heavy non-free-fall, with a slow decline in the weight drop foot brake or hand brake control.
12, when the tower crane lifting load at or near full capacity, non-landed arm or two actions simultaneously.
13, after the job is completed, the crane should be parked in the middle of the track, the arm should not be too high, it should forward air source, card grip rail clamp, cut off the power; lifting objects should be put down, stopped brake lever in neutral and closed lock.
14 In addition, self-elevating tower crane when lifting objects, balance weight must be moved to a predetermined position.
15, must relax tower ceiling rose cable, relaxed length should be slightly larger than the total lifting height, and fixing the cable reel; should be closer to lifting the car and the counterweight tower cap and stopped rotating part, is strictly prohibited Tower cap rotation. Source: HC Engineering Machinery Network
2015年11月29日星期日
Choose cost-effective concrete batching plant needs where several departure
Choose cost-effective concrete batching plant to listen to the evaluation of the production of front-line staff to the scene, to see the manufacturer's production capability, multi-select several manufacturers to shop around, requiring manufacturers to spot test machine and other aspects.
1, to the concrete batching plant on the site where the old user learning experience, ask how much concrete batching plant daily output, the failure rate, if more was on the service, your concrete batching plant prices where more money to buy;
2, multi-faceted understanding of concrete batching plant knowledge, as far as possible to select the device in their own efforts, some manufacturers for you is purely blind flicker, such as concrete mixing plants hzs35 one hour are they amounted to less than 35 square concrete, actually told you he There are secret law can reach, after the encounter this kind of problem when listening to a lively, not credible;
3, requires concrete batching plant manufacturers to introduce their latest client site, this is the best way to test the quality of equipment manufacturers, if the manufacturers about avoidance, the following questions would not talk about, this factory have a problem;
4, to a certain number of manufacturers to study, not only to increase our understanding of the concrete batching plant, but also through comparison to judge, so there is a bargain bottom line.
In the actual purchase equipment concrete mixer them, the situation appears much more complex than these, do not easily place an order, to examine the decision after mature, buy concrete batching plant at risk, the investment need to be cautious.
1, to the concrete batching plant on the site where the old user learning experience, ask how much concrete batching plant daily output, the failure rate, if more was on the service, your concrete batching plant prices where more money to buy;
2, multi-faceted understanding of concrete batching plant knowledge, as far as possible to select the device in their own efforts, some manufacturers for you is purely blind flicker, such as concrete mixing plants hzs35 one hour are they amounted to less than 35 square concrete, actually told you he There are secret law can reach, after the encounter this kind of problem when listening to a lively, not credible;
3, requires concrete batching plant manufacturers to introduce their latest client site, this is the best way to test the quality of equipment manufacturers, if the manufacturers about avoidance, the following questions would not talk about, this factory have a problem;
4, to a certain number of manufacturers to study, not only to increase our understanding of the concrete batching plant, but also through comparison to judge, so there is a bargain bottom line.
In the actual purchase equipment concrete mixer them, the situation appears much more complex than these, do not easily place an order, to examine the decision after mature, buy concrete batching plant at risk, the investment need to be cautious.
2015年11月27日星期五
Concrete batching plant selects address factors that need attention
We should have to do everything before their plans, planning to do things, so we can do more with less. Of course, for their own stable soil batching plant location is not careless, between the establishment must have a very detailed plan. If not, then the position will very much affect the business concrete batching plant, and even lead to the collapse of batching plant. So when choosing where you want the focus to consider what issues it?
First, when the site selection must be based on people-oriented principle, as far as possible away from residential areas. We know that stabilized soil batching plant noise will be great, if too close to residential areas, then will wake residents, affect the quality of life of residents, so is not conducive to the development of stabilized soil batching plant.
Second, consider some of the external factors, such as water. Stabilized soil batching plant takes a lot of water every day, and if too far away from the water, then not only will you produce a great deal of impact will be, will increase a lot of unnecessary spending, resulting in increased cost of the concrete.
Third, the traffic is a very important factor, try to choose a place convenient transportation at the site, so easy to purchase and shipping, will give their batching plants bring a lot of customers, making the business more prosperous .
Finally, we need to be built according to their size stabilized soil batching plant selection area, best to reserve space for their future development batching plant.
First, when the site selection must be based on people-oriented principle, as far as possible away from residential areas. We know that stabilized soil batching plant noise will be great, if too close to residential areas, then will wake residents, affect the quality of life of residents, so is not conducive to the development of stabilized soil batching plant.
Second, consider some of the external factors, such as water. Stabilized soil batching plant takes a lot of water every day, and if too far away from the water, then not only will you produce a great deal of impact will be, will increase a lot of unnecessary spending, resulting in increased cost of the concrete.
Third, the traffic is a very important factor, try to choose a place convenient transportation at the site, so easy to purchase and shipping, will give their batching plants bring a lot of customers, making the business more prosperous .
Finally, we need to be built according to their size stabilized soil batching plant selection area, best to reserve space for their future development batching plant.
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