Concrete pump truck is mainly used for pumping concrete. Concrete pumping transportation is also known as pumping concrete. The horizontal conveying distance of concrete pump truck transportation can reach 800 meters, and the vertical transportation height can reach 300 meters. It has the advantages of high work efficiency, labor saving, continuous operation, cost saving, etc. It is currently widely used as an advanced pumping facility on concrete construction sites. Let's lead you to learn how the concrete pump truck transports concrete?

The important parts of concrete pump truck include concrete pump, concrete conveying pipe, and distribution device.

Concrete pump truck

1. According to the working principle, concrete pumps can be divided into three types, including hydraulic piston type, extrusion type and pneumatic type. The hydraulic piston concrete pumping method uses the reciprocating motion of the piston to suck in and press out the concrete. This operating principle is suitable for small and medium-sized construction sites, such as new rural construction.

Concrete pump truck extrusion concrete pump is to use the roller in the pump to squeeze the concrete, so that the concrete can reach the top through the extrusion in the hose. A high vacuum is maintained in the pump chamber, and the hose expands after being squeezed, and a negative pressure is generated in the pump tube. Its main function is to continuously inhale the concrete in the hopper. The concrete in the pipe is continuously discharged to achieve the purpose of transportation.

Pneumatic concrete pump uses compressed air as power to transport concrete to a fixed delivery location.

2. Concrete delivery pipes of concrete pump trucks include straight pipes, curved pipes, conical pipes and pouring hoses. The pipe diameters of straight pipes and elbows are mainly 100, 125 and 150mm, the standard length of straight pipes is mainly 4.0m, and there are also four pipe lengths of 3.0, 2.0, 1.0 and 0.5m for adjusting the length of the pipe. The angle of the elbow is 15°, 30°, 45°, 60° and 90° to meet the needs of changing the direction of the pipe.

The length of the tapered pipe is generally 1.0m, which is used for the connection of two different diameter pipes. Straight pipe, curved pipe and conical pipe are made of alloy steel, and the pouring hose is made of rubber and spiral elastic metal. The hose is connected to the outlet of the pipe, and the distribution range can be expanded without moving the steel main pipe.

3. The distributing device of the concrete pump truck has two functions of distributing and conveying. The amount of concrete continuously conveyed by the concrete pump is very large. In order to directly pour the conveyed concrete into the formwork, a distributing device with two functions of conveying and distributing should be set up. for the boom).

The distribution device of the concrete pump truck should be selected according to the actual situation and conditions of the construction site. A mobile distribution device is used on the floor. Its boom can be returned to 360°, and the concrete can be transported to the pouring within its working range. Place. In addition, placing booms can also be mounted on tower cranes. The concrete pump and placing boom can also be installed on the vehicle chassis to form a placing boom pump truck for foundation engineering and concrete pouring of multi-storey buildings.