Pump truck operation safety manual

Concrete pump truck, also affectionately known as elephant trunk. It is one of the indispensable construction machinery in the modernization construction. The main function is to use pressure to continuously transport concrete along the pipeline to the working surface.

Pump truck operation is a very dangerous type of work, here is a list of some safety precautions for the big guys to see. First of all, please wear a safety helmet and follow the safety regulations and safety procedures on the site.

The bottom plate is stable to be safe pump legs pay attention to a lot

Just like kung fu, if the practice is not solid enough, it is easy to be pushed down. The "bottom plate" of the pump truck, that is, whether its legs can be firmly "tied" on the ground, is the top priority of the safe operation of the pump truck.

1 Protect yourself and others from dangerous areas

When expanding or closing the leg of the pump truck, the rotation range of the leg belongs to the dangerous area, and the personnel may be hurt in the scope. When carrying out this operation, beware of the safety of themselves and the personnel next to them.

2 Strengthen position coincidence strength The leg should be extended in place

The legs of the pump have a fixed strengthening position, and only when the legs are opened and extended in place, these strengthening positions can exert the maximum strength, otherwise the legs will have the risk of breaking. When extending the leg, observe that the leg and the upper arrow of the ear are aligned, and that the front leg arm is aligned with the outstretched arm arrow of the front leg.

3 Do a good job of communication with construction personnel do not "step on"

The pump truck must be supported on a solid ground, and if the maximum pressure of the leg is greater than the allowable pressure on the ground, the supporting plate or auxiliary square wood must be used to increase the supporting surface area. In addition, before the leg, be sure to communicate with the familiar person on the site to ensure that the leg is not above the sewer.

4 Leave enough safe distance to prevent the ground from collapsing

When supporting near a pit or ramp, a sufficient safe distance should be allowed to prevent the ground from collapsing.

5 Pump car must be supported absolutely not more than 3 degrees

After the support is completed, it is necessary to ensure that the maximum horizontal deflection Angle of the pump truck does not exceed 3 degrees. Generally speaking, the extension direction of the boom will be supported a little higher during the construction process, leaving a margin for the subsidence after the extension of the boom. The pump truck produced now is generally equipped with an electronic level and alarm device, once the pump inclination is too large, the alarm will sound to remind the operator. Before extending the boom, double check that the legs are properly supported.

6 Remote control one arm to ensure that it is safe from the ground

In the case of confirming that all legs are reliable and effective, it is best to use one or two booms to confirm the safety of legs.

The specific approach is to extend one or two sections of the boom, so that the opening Angle is about 90 degrees, so that the two arms are not more than one meter from the ground, and the remote control of one arm is moved up and down in the position of the four legs, to check whether the corresponding boom and the diagonal boom are safe.

7 If water enters under the legs, rearm to ensure safety

In case of rain, leg cylinder leakage and factors that reduce leg stability, the boom should be immediately closed, and the leg should be supported as required.

In addition, when supporting the pump car, it is best to make the tire leave the ground about 5 cm, otherwise because of the swing of the pump car S pendulum tube, as well as the impact of the internal pressure caused by the vehicle shaking, will damage the vehicle driving mechanism.

● Two people work together to see more, listen more and communicate

The operation of the pump truck must be completed by at least two people, one of whom operates the remote control for the operation of the boom and the control of the pump. Another person at any time to observe the pump boom and leg, as well as the quality of the aggregate into the hopper.

1. Direct the reverse of the tank car not to hit the pump car

When reversing the tank car, special personnel must be arranged to command in order to prevent the tail of the tank car from hitting the pump car.

2 First use mortar to lubricate the hose end of the pipe without standing people

Before concrete pumping, mortar should be pumped to lubricate the conveying pipe, otherwise it is easy to block the pump because the pump pipe is not lubricated enough. Before the end hose is not released, no one is allowed to stand within 2 times the diameter of the hose. Before, a pump worker of the company where Xiaobian is located had a similar accident, causing serious injuries to construction workers on the site.

3 Do not move under the construction boom shaking

At any time in the pumping operation, try not to stand under the boom, to prevent the risk of accidental fracture of the boom; Second, because of pressure changes in the tube and weight changes, the boom will suddenly shake up and down, causing safety hazards.

4 Gentle operation a little boom shaking is safe

When the pump operator is operating, try to keep all the actions of the pump truck "gentle" some, such as the boom operation, pay attention to the slow - fast - slow operation method,

That is, in the early stage of remote control lever promotion, it must be slow, until the lever can be gradually pushed to the end after the boom begins to move, and the action of the boom should be slowly received by the remote control lever, which can effectively reduce the swing amplitude of the lower boom.

5 Pump car blocked pipe headache forced pumping hidden danger

Because of the technology of the pump, the ease of the aggregate and other problems, the problem of blocking the pipe is a process that the pump truck operation will inevitably go through, and it is also the most troublesome problem in the operation of the pump truck. If the blockage is encountered in the early stage, the problem cannot be eliminated after the reverse pump, it is best to remove and eliminate. Forced pumping is prone to pump pipe rupture.

6 If the line of sight is not clear, keep away from the tower crane

During the construction process, the distance from the scaffold or floor should be maintained at the corresponding safe distance, and it is best not to operate it in the case that the line of sight of some booms is unknown. There are generally tower cranes on the site. During the construction process, communicate with the tower crane driver, and pay attention to observation at any time, and be careful not to collide with the tower crane.

7 Bad weather not construction boom hiding wire points

Keep a safe distance of at least 5 meters from wires and other charged objects, regardless of whether they are charged or how much voltage they have. In addition, if there is bad weather, the pump truck is prohibited to work.