2014年12月23日星期二

The operator did not count quasi-distance crane demolition crane overturned

December 2 pm, a large crane when the crane dismantled because "estimates are not allowed to" center of gravity caused the imbalance, the result overturned after Li staged scenes like Transformers incarnations general. This scene took place in the Plum Garden Road, west of Qinzhou City, Qinzhou University and a street intersection in the faculty dormitory construction site, but fortunately the road was closed operations, causing no casualties.


The morning of December 3, southern China Morning Post reporter arrived on the scene saw a 25-ton hoist large crane to tip over backwards on the ground, nearly 30-meter-long giant crane also fell on the cross roads, crane pressing the bottom two crane standard parts, the site also littered with cranes and cables sleepers and other components. Two green trees along the road accident caused varying degrees of damage, also narrowly missing the boom along the street, crane car rear by extrusion. After the incident, the narrow road west of the city has been completely blocked the street, and from the people and vehicles had to bypass.

Rushed to the scene to deal with the construction machinery side of the Guangxi Zhang Yuhua construction engineer, said, between 9 pm to 2 incident. When removing the last two handling cranes, crane operator to estimate due to inaccurate "boom overreach, weight shift caused by crane back." He said the crane tower crane installation and removal by the company responsible for the accident caused about crane repair costs close to 1 million.

Subsequently, the reporter will be fed back to the construction unit and Infrastructure Division of Qinzhou University, Qinzhou City Administration departments have indicated that the other has not received prior to the accident report, immediately after receiving the report sent for processing. 10:00, Qinzhou City Administration departments rushed to the scene to guide the two staff members, requiring the construction side immediately closed roads, according to the routing table.

30 minutes later, two rescue crane crane company arrived on the scene in two vehicles collaboration control arm, remove branches, righting the vehicle after a series of operations, at 12:00 successful completion of the disposal of the accident, and restore smooth road.

Construction Crane developments abroad "mini" crane in large numbers - tianangle

Construction Crane developments abroad "mini" crane in large numbers - tianangle

As a result of large-scale development of key projects, the required components and the increasing weight of the equipment, the demand for the growing large lifting equipment.

2014年12月18日星期四

Tower crane installation methods - tianangle

Tower crane installation methods - tianangle

balancing tower crane
     1), only after the disengagement foot tower slewing ring tail plate, can be balanced.
     2) Push the joystick to the pump station "jacking up" direction, lifting up until the slewing ring just left foot until fishplates.
     3) Check the tower crane is balanced, you can trim the tractors were necessary.
     4), whether in a vertical line can be found by checking the exact location of the car pulling slewing bearing legs and fishplates. Jacking is also shown by the pressure gauge on the pump station the minimum pressure required to be verified.
     5), you can pull the car boom boom equilibrium position in the abdominal oblique tie rod cloth as a marker, but note that the marker distance depends on the length of the boom, boom and therefore different lengths, mark distance should also be different.





     <2>, lifting Canada Day
     (1) Notes
     a) Check the standard section cited beam is solid, the car is safe and flexible.
     b) Check the hydraulic original station is installed, the oil tank is charged, and then turn to debug and test.
     c) Check whether lifting beams under riding stable.
     before d) observation tower machine after balance before lifting.
     e) In the lifting process, the absolute prohibition of rotary movement of the tower crane, luffing trolley for luffing movement and hoisting winch mechanism for lifting or lowering operation.
     f) tower crane lifting, in addition to its own to install the required lifting, but not allowed to carry out other lifting job.
     g) tower crane lifting should be done when the wind is less than four.
     (2), lifting Canada Day
     1), part of the tower from the top of the tower with a pawl support in the last section of a standard lifting ear seat, piston rod is almost fully extended throughout the trip, the guide wheel sets of shelves can not exceed the tower the fixed part.
     2), the standard section to the tower. Introducing sets rack.
     3), the hydraulic system lever into "lift" position, the pawl from jacking ear seat. Steering lever pawl from the tower.
     4) The hydraulic system lever into "down" position, so that the standard section insert fish plates, with a pivot pins, safety pins and cotter pin locking standard section. Lift the hinged ladder supreme fixed end of the connector into the lower escalator escalator ends following a standard section.
     5) Loosen the four bolts to introduce the car in the standard section and sets its launch aircraft.
     6) The second criterion Festival hanging on the rail, in the meantime, you must be from the top of the tower crane department from being associated with the lower section of the tower.
     7) To this end, the hydraulic system lever into "down" position until the slewing ring foot (1) is connected to the last section of a standard fishplates.
     8) mounted above the four safety pins to replace the pin. If necessary, trim the weight down, the tower crane standard section hook rack to hang onto the hook pulley block, will install another standard section channels linked to the introduction of a small car, up to the rail. If necessary, trim back lifting weights, trim the tower, out of the pin. The next section of the program plus you can start, repeatedly lifting plus festival, until it reaches the desired height.
     Note: Install the last one before the holiday standard, to be installed on the slewing ring channel platform, the last section of a standard must be connected to the lower part of the tower, the upper legs and slewing ring connection.

2014年12月9日星期二

Concrete pump maintenance requirements of the six points - tianangle

Concrete pump maintenance requirements of the six points - tianangle



(1) Clean the concrete pump equipment inside and outside the adhesion of concrete, sand and other debris, the internal device you want to keep a clean state.
(2) tools for concrete pump parts requirements To gauge set neatly placed for easy use.
(3) the requirements of the various components of the concrete pump is absolutely not rust and efficient work, which is not normally necessary to check the oil pressure, oil is not in line with the requirements, while also on the oil gun, oil cup, linoleum after cleaning, dry cleaning is completed to wait for the water pump after then refuel.
(4) In accordance with the Code of concrete pumps use the operating instructions for standardized operation, thus to ensure the normal operation of the concrete pump.
(5) concrete pump before starting the first check of each controller is not good, and stones into the water and stir in the barrel for cleaning after construction stopped.

(6) the cold season, after the work is completed and the application of water to clean the water clean, to avoid freezing equipment.

These are not even the point Notes on concrete pump routine maintenance me to introduce.

Powder metallurgy important symbol of modern technology in the development of three areas

dust collection system
History of powder metallurgy has been for a long time, with the development of powder metallurgy technology, metal powder as raw material, has been expanded to refractory metal compound powder, ceramic powder and cladding powder. Sintering of powder metallurgy products, further processing may be able to use, can also be post-treatment of the sintered article according to various needs. Modern technology has an important symbol of powder metallurgy three aspects in development.   1. overcome the difficulties of refractory metal smelting process produces, so powder metallurgy technology in the domestic industry has been applied, and known as the crusher machining of carbide in the Industrial Revolution.
2. Preparation stage using powder metallurgy porous oil-bearing success and development to production of iron-based mechanical parts, in the industrial application of powder metallurgy mechanical parts are oil pump gears.
3. The higher performance of the new materials, new materials, new technology development landmark after another, is a modern metallurgy powder metallurgy advanced technology has played an increasingly important role. For materials processing, the PM is a new manufacturing process without cutting machinery parts, can significantly reduce the amount of cutting tools save, save metal. Whether or PM position in science and technology's role in the national economy are increasingly important.

2014年12月7日星期日

Concrete aggregate market demand

Concrete aggregate refers to the process of building demolition discarded crushed concrete aggregate, after washing, crushing and screening, such as processing, re-used for the production of concrete aggregate - the recycled aggregate, recycled concrete and formulated into concrete would be a renewable resource.
Because of construction waste processing waste concrete and graded according to a certain percentage of recycled aggregates formed by mixing some or all instead of natural aggregate (mainly coarse aggregate) prepared from the fresh concrete, reinforced concrete using recycled aggregate concrete beams say reinforced recycled concrete beams. Therefore, in our current concrete aggregate market demand is very large.

Concrete crushing process can be summarized in three stages for six procedures, screening (to remove the soil, steel, etc.) - damaged (aggregate) - Ingredients - compression molding - Maintenance - finished six processes, pre-processing stage: removing waste concrete machinery the other impurities, use concrete crusher crushing; grinding stage: Concrete block cylinder rotating eccentric turn to collide with each other, rubbing, grinding, removing grout and mortar attached to aggregate surface; screening stage: the final sifting through the material, removing fine particles of cement and mortar, and finally get recycled concrete aggregate.

And product set concrete aggregate reproduction quality and cheap, variety, appearance, durability and other characteristics in one, a product on the market, and immediately won the favor of the market.

2014年12月4日星期四

Silent protest construction waste garbage bag hanging

Purple Mountain road in Zhengzhou hung garbage bags appeared phenomenon, saw this phenomenon too funny feeling, and asked local residents to know: when a roadside building demolition and construction waste left by the road does not deal with the residents to reflect on many occasions can not be resolved, we really can not, just hang garbage bags 'silent protest'.
garbage bags
 

Inside of the fence within 3 meters range filled with broken bricks, concrete and other construction waste, an area of over 100 square meters, construction waste nobody, when it rains muddy roads will allow the residents to get bored, and this is understandable but the parties can not resolve the problem with each other in this way, to have him any good.

Speaking of construction waste we can truly appreciate their distress brought to our lives, for now, it is not difficult to deal with construction waste, Hangzhou truemax mobile construction waste disposal equipment sales in 2014 out of nearly 20, professional used throughout construction waste, construction waste so that no problems exist now handle, perhaps because the residents, developers in terms of construction waste uninformed, I hope you read this article after construction waste to have a re - understanding, through mobile crusher station construction waste can then generate aggregate crushing crushing machinery raw materials and other building materials, construction waste if you need to consult Hangzhou truemax.

Zoomlion concrete mixers LNG industry led Green Manufacturing

Industry the most complete product development group led by industry

With further increase of the degree of industrialization, environmental issues more and more attention, people have been talking about "haze" pale, vehicle emissions is recognized air pollution culprit. Zoomlion as a responsible corporate citizen, environmental protection has been the development direction of the mixer, and until now, has become the industry's most comprehensive LNG product group.

LNG fuel mixer used for liquefied natural gas (referred to as LNG), whose main component is methane (CH4), usually at atmospheric pressure, low-temperature environments, the products of combustion are mainly carbon dioxide and water, it is very remarkable clean energy. In addition, due to an explosion at a concentration of 5% to 25%, and easy to gasify volatile after leak, its concentration is difficult to achieve explosive concentration, therefore, LNG is a safe fuel, there is almost no security risks of production and use.

Zoomlion national standards as a mixer unit, for many years the world's production and sales of diesel Series mixer first, in the technical aspects but also has led the development of the industry. Back in 2011, Zoomlion on its strong technical strength to develop a series of natural gas mixer for domestic customers tailored LNG Truck sales have been over a hundred units, to adapt to customer needs in Southeast Asia is to break CNG mixer mixer not use CNG industry myth, Zoomlion concrete machinery industry has become a leader in green energy.

The highest customer acceptance of new image appearance

Relying on the development of LNG Truck Tops settled in the National Research Center of Zoomlion concrete research and development efforts, using the internationally patented invention T-shaped leaves, multiphase flow mixing technology, from CIFA flexible frame connection technology, from designed to ensure stable and reliable source. In the production control, the use of modern lean management ZMES carry, with the original German imports of mixing tube welding robot welding quality assurance. It was because of strong research and development, advanced manufacturing level backing, mixer Zoomlion's only known as "the industry's most durable mixer."

In addition, LNG mixer using heavy truck, Shaanxi Auto, Dongfeng heavy truck manufacturers mainstream chassis, chassis-quality professional and reliable follow-up services intimate place. For the LNG vehicle key pieces - cylinders, Zoomlion require chassis manufacturers use to master the core technology of cryogenic cylinders first international brand cylinders, cylinder capacity is 20% higher than peers, Mileage longer. Class is designed to ensure the cylinder stop by after impact deformation and other security risks from the heavy euipment
heavy euipment, the industry's longest storage time can greatly reduce destructive pressure relief equipment idle time, improve the utilization of LNG.

Reliable high-quality chassis aboard United tops, Zoomlion LNG mixer again with a new image in front of customers, Zoomlion is undergoing a green revolution in Shanxi, Jiangsu, Hebei, China Zoomlion LNG mixer has been highly recognized by customers, will create greater value for our customers around the world in the future.