Concrete Pump encyclopedic knowledge

Source: Author: Date: 2013-08-20 Views: 188 Comments: 0 Favorite Print

Abstract: The pump system consists of boom, pumping, hydraulic support, electronically controlled five-part

Pump System

By Boom, pumping, hydraulic support, electronically controlled five-part

Concrete pump operating system and performance:

Concrete Pump control electrical control system there are five main mechanical, hydraulic, electromechanical appliances controlled, programmable logic controller type, logic-controlled. In addition to the installation of the concrete pump electrical control system to complete the control task, is also equipped with a manual control to manipulate the system, it is also part of the system of control. If mechanical manipulation, generally bar system controls and flexible shaft control mechanism in two ways. If you compare the two is not difficult to find, flexible shaft control mechanism has more advantages, such as flexible layout, high transmission efficiency, and transition joints little less air travel, easy stroke adjustment, etc., so the concrete pump control system The main control mechanism is to select the flexible shaft. According to the actual needs of the pump control system should be able to achieve variable speed manipulation and enable the joystick to stop in any position locking mechanism is operated stepless critical devices in general can use the disc springs or spring plate. For ease of operation, the joystick are designed to be installed at a convenient location, such as Putzmeister BSF36.09Z type pump, which controls the engine speed joystick mounted on the side of the ladder, the operation is very convenient. Concrete pump control system is mainly used to control the flow of the main pump and engine speed, thereby changing the amount of concrete pump discharge. Such as the use of hydraulic control, you can get directly from the truck driving force hydraulic pumping system, and to achieve through manual hydraulic control valve. There is a close relationship with the properties of concrete, while paying attention to the details of the rules in the course of operation, the timely detection and timely troubleshooting to improve pump efficiency. There are two ways to clean water pipes and gas wash. Whether it is water or air wash, should the valve housing and hopper clean. When washing, the water soaked tied cylindrical cement bags and cleaning the ball has been put into clean tapered tube, connected to the cone, pipe, close the discharge door, again hopper filled with water (to be kept water constantly). Pumping water until clean ball out from the front of the duct so far. Compressed air wash that purging is to soak the water into the air to wash clean ball joints, followed by contact with the adjustable tube straight first root canal, and at the end of the pipe connected to the safety cover, safety cover orifice end down. Control air pressure does not exceed 0.8MPa, slowly open the valve, when the concrete can be successfully open a large outflow valve.

Highest in the world

December 2008, Zoomlion acquired CIFA Italy to become the world's largest manufacturer of concrete equipment, the strongest domestic research institutes (National Institute of Construction Machinery)

The world's longest pump is determined by China Hunan Zoomlion production of 101 m long boom pump, and successfully put into use.

Pumping capacity 200m / h (262yd / h), the configuration of large diameter delivery cylinder, good suction performance, change to fewer, extending the life of wearing parts;

Computer energy saving control, automatically match the power an average energy saving of 20%;

Integrated automatic level switch, automatic concrete piston return, GPS and many other advanced technologies;

Front Swing multistage telescoping legs, unilateral support for narrow construction sites;

Boom damping technology to extend the service life of the boom, the end of the hose to improve operational performance.

Records History

The late 1960s, the introduction of 16 meters Putzmeister boom pump; in 1986, it developed the world's longest boom pump 62 meters born. All told, German with nearly two decades, the boom lifting 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 China business.

In 2007, Sany pioneered in the industry 66 m boom pump, Putzmeister leapfrogged to become the world's longest boom pump manufacturer. Year, Trinity 66 m boom pump also won the world's longest boom pump the Guinness Book of World Records. It is worth mentioning that this is the first Guinness record Chinese construction machinery industry. At that time, the field of concrete pump widespread this sentence: concrete pump truck boom length of one meter for each additional difficulty extremely difficult. However, a series of facts later proved that Chinese construction machinery enterprises, "blue sky" really difficult.

In 2009, Trinity refresh the record of his own creation, increased truck boom length 72 m, which created a boom length of pump station in the world, the amount of concrete delivery truck two world records in the world. And particularly noteworthy is that the successful delivery of the customer after the introduction of the pump station 72 meters, becoming by far the longest in the actual construction of the boom pump use.

In 2011, Sany pump 86 meters independently developed successful downline, once again broke the world record. In just two years, from a 72 meters to 86 meters across. At the time, Sany 86 m truck has three of the world's most realize - the longest boom, boom maximum number of sections, the maximum pumping capacity. Just a few years time, Trinity achieve a world record height of the boom truck "triple jump."

In 2011, almost the same time period Sany 86 m boom pump, Zoomlion 80 m boom pump off the assembly line. And the Trinity is different, the Zoomlion launched the latest European technology integration CIFA independent research and development of carbon fiber boom pump 80 meters, the longest boom pump truck to keep the chassis-based General Motors, the longest carbon fiber boom pump and many other world records, also won the Guinness World Records.

In the September 28, 2012, on the 20th anniversary celebration of Zoomlion, Zoomlion fell swoop launched a variety of "China or the highest in the world," the product, and one of the most dazzling star product first 101 meters when the world's longest boom pump. Zoomlion not only because once again created a Guinness record, even more surprising is the Zoomlion full record up to 15 meters. [1]

Manufacturer

Trinity Group is the world's top 50 engineering machinery manufacturers, the world's largest concrete machinery manufacturer, the top 10 Chinese enterprises, construction machinery industry overall efficiency and competitiveness of the strongest companies, Forbes' top companies in China, "China most of the growth of independent brand, China's most competitive brand, China's construction machinery industry iconic brand, Asia's top 500 brands.

Trinity Group is the main industry "works" as the theme of the machinery and equipment manufacturing industry, has entered the construction machinery manufacturing. Leading products for construction machinery, road machinery, mining machinery, piling machinery, lifting machinery, non-excavation and construction equipment, port machinery, wind power equipment, such as a full range of products. Where concrete machinery, piling machinery, crawler crane for the first brand, concrete pump fully replace imports, the domestic market share of 57% for the domestic first, and continuous multi-annual sales in the world's first.

Zoomlion: the only one concrete machinery national standards [2] to develop, modify eligibility unit

Zoomlion adhering to the "sincere interest-free Hiroatsu distant," the concept of corporate culture, both endogenous development and extension development. Production operations base located in Hunan, China, Shanghai, Shaanxi, Guangdong and other places in Milan, Italy, has formed in the Technology Park, Lugu Industrial Park, Quantang Industrial Park, Changde Guanxi Industrial Park, Hope Town Industrial Park, Yiyang, Yuanjiang Industrial Park , Shanghai industrial Park, Shaanxi Weinan industrial Park, Italy CIFA industrial Park industrial Park, with a total area of nearly 3 million square meters. With world-class mega steel plant, modern processing equipment and automated production lines, with nationwide coverage, comprehensive sales network extends overseas, a strong service system. The company's quality, environmental and occupational health and safety management system integrated to obtain TÜV Rheinland certification, in the domestic construction machinery industry in the first implementation of the product in accordance with EU standards CE certification, and Russian GOST certification, South Korea and safety certification.

The most famous manufacturer Sany

There are more famous abroad MHI Sankyo construction

Operating

An application security considerations [3]

A concrete pump truck can only be used to transport concrete, except for any purpose (such as lifting weights) are dangerous.

Height and distance two pumping concrete pump truck boom are rigorously computational and experimental confirmation of any risk resulting in the subsequent end of the hose connected to the ends of the hose pipe or longer than 3m are not allowed by the operators themselves

3 prohibits unauthorized truck were likely to affect the safety modifications, including changes to safety pressure, speed setting; use of large diameter pipe or duct wall thickness increases, change control procedures or lines. Changes on the arm and legs, etc.

4 truck operator must wear a helmet and obey safety regulations and safety procedures on site

Two supporting Safety Precautions

A supporting floor must be horizontal. Otherwise, it is necessary to make a horizontal support surface. Can not be supported on the hole.

2 pump must be supported on solid ground, if the leg is greater than the maximum pressure allowable ground pressure to assist parties with the support plate or timber to increase the bearing surface area.

3 pump supported pit, near the slope, should retain sufficient safety distance

4 support, the need to ensure that the machine is level, the whole level of the maximum angle around, no more than 3 degrees.

5 When you expand or collapse the legs, the legs rotate within the scope of all hazardous areas, personnel may be pinched in the range

6 support, all legs must stretch and expand to a predetermined position (upper leg and lug arrows aligned, the front legs and front legs stretched out arm arm arrows aligned) otherwise there is danger of tipping

7 must be required to operate the boom support good legs must be placed on the jib boom collapsed main support legs to the balance of payments

8 reduced stability factor appears to be the boom collapsed immediately, again according to the requirements of supporting the exclusion, reducing the stability of factors including

Rain, snow or other changes in ground conditions caused by water

Supporting leg side ground subsidence

Outrigger cylinder leak

Three extension boom Safety Precautions

Only after confirming a truck has been supporting legs properly, in order to operate the boom, boom operation must be carried out in accordance with the procedures described in the order

Under 2 thunderstorm or adverse weather conditions, you can not use the boom. Boom can not be used in more than eight wind weather

3 operating boom, boom all the operator's field of vision should be within

4 Be careful when working near high-voltage shock hazard, should ensure a safe distance from the boom and wires

5 below the boom is a hazardous area, there may be other parts falling concrete or wounding

Within the range of 6 end of the hose should not stop people prescribed, shall guide the end of the hose pump starts pumping, it might swing wounding or causing an accident sprayed concrete

Start the pump when the danger zone is the area around the end of the hose swing. Area diameter is twice the length of the hose end. The end of the hose length up to 3m, the danger zone diameter of 6m.

7 Do not bend the end of the hose, the end is not the end of the hose into the concrete.

8 If any abnormal arm movements, should immediately press the emergency stop button. May continue to be used by professionals to identify the reasons for and ruled out.

Four pumping and maintenance of safety precautions

When a pump running, can not open the hopper screen, tank cover other security facilities, can not put his hand into the hopper inside the tank or other moving parts with the clutch

2 pumping, must ensure that the concrete inside the hopper over the position of the feet shaft to prevent the concrete caused due to inhalation of the gas jet

3 blocked tubes, be sure to release the anti-pump pressure within the pipe, then you can remove concrete pump pipe.

4 Only when the pump is placed on good ground stability, and to ensure that accidents do not occur when moving to carry out maintenance and repair work

Only five boom is folded or reliable support, when the engine is off and fixed the legs, can carry out maintenance and repair work

Before 6 must shut down for maintenance, and release the pressure accumulator

7 If there is no danger to the corresponding fixed jib boom hydraulic lock is opened, there is boom falling wounding

Maintenance

A concrete pump truck maintenance methods should follow the appropriate maintenance manual requirements and methods, everyday use, before and after use truck-related items to be checked.

2, in accordance with the appropriate use and maintenance manual requirements and methods, refer to the lubrication of the pump components of timely and adequate lubrication.

3, in accordance with the appropriate use and maintenance manual requirements and methods to select a specific type of hydraulic oil, regular replacement of the hydraulic system oil.

4. The concrete pump maintenance manual methods and requirements, regularly check the tank pumping system part of the concrete cylinders, concrete ducts.

5, in accordance with the appropriate use and maintenance manual requirements and methods, regular inspection and adjustment of the rotational torque arm bolts of the base.

6. The concrete pump maintenance manual method, regular inspection and adjustment of the boom, swivel base, legs, support structure, reducer and other components.

7, in accordance with the appropriate use and maintenance manual requirements and methods, regularly check the working status of hydraulic systems and components, electrical systems and components.

8, should be used for the cold weather concrete pump maintenance methods. [4]