What are the construction technology of concrete material?

The construction process of concrete placing boom

A, according to the fabric pole factory installation manual to install the fabric rod.

B, the cloth rod straight, whether in the case of straight do not weight.Generally the cloth rod into in don't weight can stand straight, because in the lifting cloth rod, common crane can not be cloth bar and counterweight hanging together, need points twice to hoisting and installation.

Check bolt C, cloth rod are all tightened, the rotating shaft is normal.

D, the frame body with the position of the cloth rod is put in place, and the inspection and acceptance are carried out, and the bearing capacity of the bearing body, the strengthening condition of the double fastener and the smooth condition of the foundation are calculated..

E and the placement of the placing boom and counterweight, cloth of the intermediate lever must be elevated 200~300mm, supporting feet beneath sleeper or wood, check cloth rod body is vertical.

F, when the frame body is placed on the frame body, the supporting legs are compacted and the legs are not installed on the floor..

G, a cable wind rope cloth rod fixed legs, cable wind rope not too tight, the distance should be set aside cloth rod deformation.

H, concrete pump, takes over must check full pump tube are cleaned, the interface must be used rubber seal washer. Connect the concrete pump pipe shall check the bolt.

I, test, with rope control of concrete material outlet, and the middle arm bending demolition, run for a week in the maximum range.

J, ready to signal lines of the concrete and walkie talkie, double control, in columns, walls of concrete to ensure the lamp pump stop, stop stopped, in front of the concrete must advance 4S halted, lights, communication must be established a special, night construction control of concrete must be accompanied by a flashlight, see concrete pouring height.

K, the outlet change location, with a sack will be exported to live, to avoid concrete fall on the ground, to another out of the material position to unlock.

L, manual cloth rod can not be arbitrarily long, shall be long, in greater than the allowable working radius must be fixed and fixed support.

M, concrete pouring has been completed, we must use mortar and water to wash the pump and use of each pumping clean water must be using standard cleaning ball, shall not be used instead of other objects, after cleaning, the first hanging weight, after hanging cloth rod body to a working position, after installation, hanging in the balance, repeat the previous.

concrete mixing boom pump into rural housing choice of concrete machinery

Rural housing or manual agitation? Small commodity floor, township building still blender or mixer plus add ivy concrete mixing boom pump? There are mined, road and rail tunnels, water conservancy and hydropower engineering, slope control geological disasters, infrastructure and irrigation concrete pouring What are the concrete equipment used for?Is concrete mixing boom pump? Car pump? Pump? But these types of equipment are required to cooperate with other construction equipment. Suppliers such as mixers or concrete trucks, but suppliers of concrete is more expensive, no doubt cost will be greatly increased. Then there is no cost savings, concrete mixing quality can be achieved mixed standard equipment suppliers do. Yes, that is stirring concrete mixing boom pump, if you have not heard, then you are OUT.

Why would you OUT, because stirring concrete mixing boom pump since Sanmin heavy promotion division, was quickly known in the industry, peer imitate springing up, we can imagine the impact and the impact on the market, the most important is to meet the customer's needs. Sanmin heavy branches stirred concrete mixing boom pump occupy a certain market share, with brand awareness, due to its functional advantages and services for our customers save time, effort and money. All along, the construction of China's rural areas, the use of manual mode, or semi-mechanical mode, long duration, high cost and poor quality. In recent years, he engaged in heavy manual labor less and less well-paid construction workers hard to find, resulting in slow construction progress in rural areas, the high cost. Construction generally is manual mixing or blender add ivy, but stirred concrete mixing boom pump construction operating system used in all automation, set the material, mixing, high pressure pumping into one. Simple operation, stable performance, widely used in various construction machinery in the fine aggregate concrete for small and medium, stirring and conveying foundation to fight Zhuang large aggregate concrete. Especially suitable for rural civil construction, towns and rural construction, small high-rise construction, mine, road and rail tunnels and other cave construction, water conservancy and hydropower engineering, slope control geological disasters, infrastructure and irrigation concrete pouring large or narrow space, etc. Construction site.Sanmin heavy division is the first large-scale research and development, production, promotion stirred concrete mixing boom pump enterprises, with a number of relevant national patent certificate, not only technology is more mature, and an exclusive first developed the twin-shaft compulsory mixing stirring concrete mixing boom pump,concrete mixing boom pump. Stirred by the roller concrete mixing boom pump to compulsory concrete mixing boom pump vehicle then concrete mixing boom pump, Sanmin heavy division has been an industry leader status.Both can be concrete mixing boom pump stirring stirring, a device equivalent to two devices, the cost savings on undoubtedly the first choice. And efficient use of up to 4 to 6 times that of traditional fixed mixers and concrete pumps, stirring and pumping process, two processes have been required only one operator is completed, construction can save 3 to 4 employees, reduce costs. Mixing concrete of good quality, high efficiency, high degree of automation, easy to move flexible, powerful motor performance, very suitable for multi-site operating alternately removed. Besides stirring concrete mixing boom pump price is not expensive, cheaper than buying concrete mixing boom pump plus mixer prices. Buy low-risk, cost recovery period is short, both to their own contracting business, but also rent rich. Building as a building 300 square, just 80 minutes you can complete the construction. Is not very cattle. Such stirring concrete mixing boom pump you really heard it, it is not really OUT of it.

Scissor lift energy-efficient hydraulic system design scheme

Scissor lifts are in mine construction, mine maintenance and coal transportation more an application handling equipment. It mainly consists of the load almost Desk, sting fork support thumb member base and hydraulic system, etc., work by hydraulic pressure of the hydraulic cylinder output drive rod and the scissor work platform, and achieve a variety of control by the crossing through the system and protection. In the elevator rises when carrying heavy loads. To provide the driving force of the hydraulic cylinder, hydraulic flesh sunglasses lose volume, the rolling clamor foot (taxes mechanical energy) into the gravitational potential energy: while in the lift when the emphasis was to bring down the gravitational potential energy will be released to flooded. This gravitational potential energy efficiency built without lute clothes recycling will result in waste of energy. If you set the energy storage device in the hydraulic system of the machine. The decline can be released during the lift out of the gravitational potential energy stored. And when it rises into hydraulic energy, it can be reused, reducing energy consumption, improve the efficiency of the hydraulic system.

Hydraulic System Design and Analysis

Crossing atrophy system must be able to achieve the lift wells, drop, speed, stay, overload protection and can limp recovery and other functions. And love to seek simple, efficient sea, smooth running, working clap rely on, according to the design of the hydraulic system shown in Figure 1. The system uses accumulators recovery potential, in order to reduce internal leakage from the direction of the valve caused by Cheng lifts slowly sinking dip. With a good two-way valve seal control cylinder direction. Using accumulator recovery potential, its principle is: the elevator descent, the lift cylinder rod chamber towel generated by gravity pressure fluid is discharged into the accumulator, the mechanical potential energy is converted into hydraulic energy. Bear and stored in the accumulator vessel; rise in the potential drop over again Ji Taiwan, the accumulator to the hydraulic oil (equivalent to set up a pressure tank in the system), reduced splash pump, the oil pressure in the foot difference. The ascending process of the pump motor power consumption decreases again. To save energy. Because the lift only apparent movement in the vertical direction. Its decline can be realized by means of gravity, in order to simplify the structure of the fuel tank, lower manufacturing costs, the use of a single-acting cylinders, two cylinders in parallel; the direction of movement of the cylinder valve lO Bo direction control; to improve the two cylinders synchronization accuracy. Using a synchronous circuit by the sub-Luk consisting of a flow valve; to achieve rapid decline set up two two-way tie 7: For the output flow of the pump depression secret teach breaking traffic towards adaptation needs to improve the efficiency of the system, using a formula variable volume by the limited pressure pump drive throttle leaf hairpin tie consisting of a vortex throttle speed ring road: the output pressure of the pump depending on the load, the relief valve 4 is used for system safety valve, relief valve 9 to Bute limit the maximum pressure accumulator when the check valve 6 to lift rises to the highest position. After the pump shut down, closed the lift cylinder rodless Qu, the lift station bears a long time to stay in the work place cook; single melt valve 16 (valve clear sign for the back) for the holding certain minimum pressure in the accumulator, needs work properly. All these considerations designed hydraulic system, management of work processes and principles of the hydraulic system for analysis: force the oil, start the pump 3-way tie decorated l, help tank suction filter 2, then through the throttle valve 5, single the valve 6, two-way valve 10 is a right position and shunt flow valve lift oil into the King ll rodless chamber, the piston law Gu Ping, driving scissors stalk, pushing down the stage show, dance, lift grasshopper velocity The size can be controlled throttle 5.
After the stop ring in a predetermined position of the lifting platform to rise, so that the pump antimony grapes. No thumb Kui Medical rolling short dance drop mandarin duck stuffed produce enzymes vertical force weight oil is a reliable one-way valve 6 closed, lifts can reliably remain in a predetermined position.

The two-way drop Tian Bei of Shu lO l ¥ A magnet is energized to switch to the left position, the cylinder rod chamber of a fluid through the shunt flow valve 11 and the check valve 8 into the accumulator 14. pressure liquid is stored in the accumulator vessel bears. Li l to examine fluid accumulator Yao force, it is filled with the gradual rise. To lift fell over to the braking action. So smooth lowering speed lifts: 3 and because the pump outlet is closed, one-way Min 16 Although dance can express, the pump can not operate as a motor condition Li Li cluster inhalation solution; single trader valve l Because I din inch Dogs on the pressure chamber at chamber also turned off, so that when the elevator fell, hydraulic cylinder rod chamber of the discharged hydraulic oil will not enter the cloud nationals, two are foot-l poison into the reservoir, will be able to ferry Peng Chu Jalan mining deposit.

Rapid decline in emergency circumstances require rapid decline, it can be switched on the electromagnet lYA and 2YA. So that the cylinder rod chamber of fluid through the shunt a set Luk tie l, two-way left-bit mi lO tattoo two two-way valve 7 is turned to the left position lanthanum box, eliminating explain oil resistance, lifts and achieve rapid decline. 8 vend check valve prevents the fluid transducer at this point by the two two-way valve 7 filter nursery tank to store cents sputum still some pressure oil.

Rising again make two-way solenoid valve 10 lYA loss of power. Hydraulic pump 3 to draw lightning stupid some pressure fluid from the accumulator Han (this breed provider of valve l in Guinea is under pressure accumulator oil off), and then by the throttle valve 5 check valve 6, two three lO and diverter valve in case of a flow valve ll into the lift cylinder rodless dirty hoe up soil around plants Cuan desolate piston, rod drive scissor dance, ballad Beng male grasshopper rise moving boat down, lifts the moving speed of the 5 throttle control. Since the suction pump 3 is a certain pressure of the oil. Import and export pressure Mino reduced consumption of Fen Chan Yi cents engine power will be reduced. Ai-chan from real energy conservation, improve the efficiency of energy use. If the lift height is greater than the initial rise again ascent or leak due Cheng is willing to make the reservoir due to foot-l stone roller Polo stupid insufficient amount of oil stored in the hydraulic pump 3 through the check valve l oil from the reservoir.

Select 2 Main Technical Parameters

(1) cylinder row millet analysis obtained by the cylinder stroke S = structural principles and geometric motion lifts | 2 Tibetan flow ratio in the cylinder mounting position m-- mane to strut proximal long distance and support staff: the smell of the distance , mm; n-- strut layers.

(2) in accordance with the principle of energy accumulator pressure accumulator at the end of Li Yi Lin Chu-chu WMv where force p | i} - pressure loss coefficient, seven = 1.1.1.3: donkeys - accumulator operates passenger foot plot, kill m3: shape - lift and load the total weight. N; - lift and load the maximum stroke, mm. l shuttlecock: exposed to the reservoir pressure foot pressure (maximum pressure) at the end of the pet turbid; Cong force (the lowest core strength) of its discharge of oil by the end of the one-way valve 14 (as a back-pressure valve) it is set. To avoid excessive specifications accumulator and decreasing the pressure loss. To about 0.3Mpa appropriate. Inflatable Qu force accumulator can be put Tomio recommended OK.

(3) working volume accumulator capacity accumulator (can row, put the amount of oil) when the elevator dropped from a maximum height to the lowest position should be slightly larger. The hollow cylinder roller stand desolate Huai total volume (equal to the stroke depression and its Element hoop bar area and the number of product cylinder chamber), which according to the calculation formula for the total volume. Due to the use of scissor lift structure. Have a greater stroke amplification. United Pei show lower oil flesh of the working stroke is small, if the system uses liquid Fever relatively stable from the work force, you can reduce the inner diameter of the lift cylinder, and the volume of liquid discharge amount, thereby reducing the required accumulator Sui work volume.

(1) from the scissor lift table work and structural characteristics of the decision, it is necessary to shut Fu Wing income potential and feasibility.

(2) hydraulic accumulator systems can be effectively recovered potential energy recovery lifts decline during the release of potential energy, reducing lift on the boat again, the process of trial enzyme pump power consumption.

(3) The higher operating pressure, Lee's work to reduce the accumulator volume and capacity; proper system design, can shake when implementing recycling castration, but also make the system knot Mei Lu Zhu roll single, smooth operation , reliable, high efficiency,low loss.

When we work with the crane, what we should pay attention?

Job Case 1: the lifting steel rope hung, steel has been off the ground.

[What kind of danger]

1. Rope monofilament gap, resulting in wire rope breaking, hanging pieces fall injured workers.

2. When lifting a single long hanging pieces hanging pieces tilts, fall injured workers.

3. hanging pieces unbound, fell injured workers.

4. When hanging pieces just lifting, workers too close, was hanging pieces hit, fall.

5. useless leashes.

6 on the hook no anti-shedding device, hanging pieces off injured workers.

• pre-processing safety measures []

1. there is no breakage of wire rope.

2. When lifting long hanging pieces, preclude the use of 2-point lift, angle of 60 degrees between the wire rope.

3. neatly stacked lifting objects firmly tied.

4. off when using traction rope, who was some distance away from lifting.

5. Set up anti-fall device on the crane hook.

Job Scenario 2: positive with tower cranes unloading steel.

[What kind of danger]

1 with two wire rope lifting, reinforced in the lifting process is easy to fall.

2. Reinforcing materials shaking occurred, slipped beneath the injured worker to accept the goods.

3. Signal commander from the unloading platform too, hanging pieces fall resulting in signal commanding officers were injured.

4. No signal commanding officers.

[Safety measures, pre-processing]

1. Use the U-shaped hook, using four of the same length of wire rope lifting.

2. Reinforced lifting, loading dock workers to leave.

3. Signal commander certain distance away from the truck.

Job situation three: positive with tower cranes lifting steel beams.

[What kind of danger]

1. The hook is not set anti-slip setting off the rope, hanging pieces fall to cause an injury.

2. The presence of damaged wire rope, wire rope lifting process leading to fracture.

3. misaligned cable hanging position the center of gravity, leading to tilt hanging pieces occur in lifting process.

4. operators located between beams, when lifting result in entrapment.

5. Unused traction rope.

[Safety measures, pre-processing]

1. Install anti-fall device on a hook.

2. do not use a single wire breakage, Twisters broken rope.

3. Verify that the center of gravity, so that the hook is located above the center of gravity of the rear hanging, hung the rope.

4. When lifting hanging pieces, some distance away from the hanging pieces, using traction rope.

Job situation four: about lifting the steel material from the truck.

[What kind of danger]

1. lifting angle is too large (over 60 degrees), resulting in wire rope slide, hanging tilt down.

2. rope breakage of monofilament, lifting process fracture, leading to hanging pieces fall.

3. The upper edge of the hanging pieces in a sleeper, easily rolled, injury to operating personnel.

4. Signal commanding officers across the sleepers were directing, when hanging pieces tumble ass bounced sleeper hit.

5. Lifting from hanging pieces too close, workers are hanging pieces hit, dropping from the truck.

6. hook no anti-fall device, hanging pieces fall easily hurt.

[Safety measures, pre-processing]

1. ensure that the lifting angle within 60 °.

2. Use no damaged rope.

3 should be carried out after the first two ends of intermediate goods lifting, in order to ensure balance.

4. The use of traction rope hanging pieces off the ground, officers some distance away from the goods.

5. Install anti-fall device on the crane hook.

V. job: Ongoing lifting operations.

[What kind of danger]

1. hanging pieces below the signal conductor, hanging pieces fall resulting in personal injury work.

2. At the same time lifting the different shapes of materials, resulting in cable slide, hanging pieces fall, workers were injured.

3. Not used tow rope, hanging pieces result in a collision, shaking, wounding eventually fall.

[Safety measures, pre-processing]

1. The person can not stand underneath hanging pieces.

2. Different shapes are not simultaneously lifting materials.

3. Use the pull rope.

Concrete residential life of at least 1000?

All types of housing network in the past, there is always the certainty of residential life of 30 years, 50 years to prove the absurd conclusions such as homeowners, and such remarks to now no one can reasonably argue. Indeed, the relevant norms have said very clearly: the ordinary civil construction is in accordance with 50-year design life.

House life expectancy is only 30 years, you buy a mortgage for 30 years is a bunch of garbage? House life expectancy is only 50 years, then, even now have, we can not leave the next generation too?

And it is interesting to note that the use of 50-year life of the house turned out to be 70 years, which adds to the mystery of residential life, so many people did not believe he lived in the house, plus the constant crack house to see outdoor pavement subsidence, more panic buyers together to denounce these "shabby."

However, the fact is that so?

Of course not, today, I can certainly tell you that the average life expectancy of concrete shear wall frame house is more than 300 years, the average life expectancy of multi-storey residential concrete frame is more than 1000, the average life expectancy concrete frame villa is more than 10,000 years. Shocked you!

First, the impact of the structural life of what?

Second, in addition to the structure of life, the life of the building itself, there are those problems?

Pick a major say. Own house decoration will change, not to mention.

Pipeline: 15 years to 50 years

Waterproof: 10 years to 15 years

Elevator: 15 years to 20 years

Wall decoration: 15 years to 20 years

These kind of things need to remind it. Basically the house after 98 years in charge of road are not buried in concrete inside, so easy maintenance, replacement is easy. Waterproof mainly roofing and facades, repair when you can handle, construction quality is not bad as long as a few years on the bad, the body maintenance payments basically enough. Elevator can be a major problem, but fortunately a lot cheaper now lift.

These maintenance problems currently houses the main problem is not the quality of the project, precisely, is really to be replaced when the owners are not necessarily the views of unity, not pushed everyone leak, all the electrical short circuit, appeared elevator accident to know to deal with. In fact, if the district consensus, each scrape together a few thousand pieces, bulk gold is not enough to solve the problem.

Calmly say, blow up the reconstruction of the house, but also 2000 per square meter.

Having said that, I do not know clearly no. Simply put your conclusion. House wooden structure can be used for hundreds of years, thousands of masonry everywhere, and reinforced concrete machinery commodity house almost unlimited life.

Automatic Concrete Batching Plant What Are The Advantages?

Automatic concrete batching plant can in fact be referred to as a double tooth concrete mixers, concrete batching plant automatic advantage that what has it? Dong Chen mixing machinery equipment manufacturer specifically addressed to you, helping you to automatic concrete batching plants have a better understanding. Dong Chen is a professional mixing machinery equipment manufacturer, is also stirring the Central Plains region’s largest supplier of machinery and equipment; The dominant brands: Four Roll mixer, automatic concrete mixing station, three-roll crusher crusher product! Automatic concrete batching plant can be understood from the literal meaning of its most suitable for coke, coal mixing process in the actual crushing process also proved this point, automatic concrete batching plant is mainly used for coal, ore, coke and other materials crushing. Automatic concrete batching plant according to the actual production requirements, reference can be selected according to the amount of standard equipment hours of treatment; automatic concrete batching plant may also be referred to Spike automatic concrete batching plants, Branch constant production of coke crushing equipment can be divided into large and small, to meet the needs of different users.

If you want to consult fully automatic concrete batching plant price or performance-related mixing machinery equipment, through the introduction of advanced production technology, users pay a return visit, on issues related to mixing equipment in the crushing processes encountered, related summary, and then brought together the relevant engineering and technical personnel, the actual production process for the user issues analyzed and summarized, with the device itself structure, upgrading of equipment to meet the production needs of the user.