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During operation, the pumping displacement of the concrete pump truck depends on constantly adjusting the pumping speed to change the size. The adjustment of the pumping displacement is also very important. Do you know if it changes? Today I will teach you how to change the pumping displacement. Common ways to measure:

When the concrete pump is carrying out short-distance pumping construction with low head and short distance, it only needs to erect the first boom hinged with the boom turret, and then unfold the fourth and fifth booms at the end. The jib combination for short-distance pumping is composed of the first, fourth, and fifth-section booms to meet the needs of short-distance pumping construction. At this time, the second and third section booms lean against the head boom.

The section end boom is crimped and at the end of the extended section boom the concrete is pumped out of the attached discharge hose using the pipe switch. This solution can effectively reduce the height and length of the boom during pumping, so as to achieve the purpose of saving. However, the pipe switching device and unloading hose added to the curled part of the end boom have a great influence

Purpose: To guide the pressure adjustment of the pumping, reversing, stirring, and washing hydraulic systems of the sky pump. Adjustment steps: Loosen all the adjustment screws of the main relief valve on the main valve block and all the relief valves on the auxiliary valve block.

1. Pump pipe: a set of good quality wear-resistant pipe, the service life is generally about 30,000 cubic meters of concrete, that is to say, it must be replaced after 30,000 cubic meters of concrete is hit. Therefore, according to the annual pumping of 100,000 cubic meters of concrete machinery, at least 3 sets of pump pipes must be replaced a year.

The outriggers of the sky pump play a very important role in the whole car. If the chassis is not stable enough, it will fall easily. Therefore, the stability of a car has a crucial relationship with the outriggers. Whether the outriggers can be stably attached to the ground is also a very important link in the safety inspection of sky pumps.

Working principle of concrete pump Concrete pump (support pump) is composed of hopper, pump body, hydraulic cylinder for driving slide valve, slide valve, conveying cylinder, main hydraulic cylinder and pilot valve. When the main hydraulic pump drives the concrete piston to retract, under the push of the mixing blade, the concrete poured into the hopper is sucked into the delivery cylinder through the suction port of the slide valve. When the main hydraulic cylinder moves forward,

Anyone who has used a pump truck knows that the pump truck is particularly expensive for lithium-based grease, commonly known as butter, because of the special structure of the hopper. In order to ensure that the shaft is not intruded and worn by concrete, the butter is continuously overflowed from the sealed cavity, and the concrete Push it outwards to protect the inner shaft and bearings by consuming grease.

The number of hydraulic cylinders used in the concrete industry is very high, and different numbers of cylinders are used according to the number of different arms. A balance valve is used on each cylinder, which shows the importance of the balance valve, so today we will analyze it and possible problems.

If the pump truck touches the wires, the measures that should be taken are:

. Before moving the boom and extending the outriggers, check whether there are obstacles around. Prevent the jib or outriggers from touching buildings or other obstacles. When the operator cannot observe the entire work area or cannot accurately determine the distance between the outstretched part of the pump truck and adjacent objects, a guide should be assigned to command.

Since the piston of the concrete pump truck is a very important part, it needs to be in direct contact with the concrete, so the requirements for it are also very high, and there are very strict requirements for sealing and wear resistance, so sometimes if Something happened, and we should also think about whether it is a problem with the piston.

During the construction process, the pump truck must be poured according to the regulations. Today, I will introduce to you the pouring sequence of the pump truck.

As a popular pumping equipment at present, concrete pump truck can greatly improve construction efficiency and is very popular with construction parties. However, in order to prolong the service life of the concrete pump, it is necessary to carry out the necessary maintenance, which can be carried out from the following aspects.

The sealing of the gate valve is limited by the structure, and the sealing pressure is low. It is inevitable to use a Y-shaped pipe to connect the double cylinder of the concrete pump and the delivery pipe during construction, and the Y-shaped pipe will cause a large pressure loss. In addition, when the gate valve is used for conveying, it is also required to install a horizontal conveying pipe section in front of the vertical conveying pipeline,

1. Control workability and slump of concrete
The pumped concrete shall be designed in strict accordance with the regulations, the slump shall be strictly controlled, and the following principles shall be followed. (1) The ratio of the maximum particle size of coarse aggregate to the diameter of the conveying pipe should be: when the pumping height is below 50 m, it is not suitable for gravel

As the terminal equipment for pumping concrete, the mobile hydraulic concrete placing boom is used to send the pumped concrete through the pipeline to the formwork of the component to be poured. The hydraulic concrete placing boom does not need to be fixed when used, and the position and conveying direction can be flexibly changed according to the needs of the construction site.

HGY24 concrete hydraulic concrete placing boom is a terminal equipment used in conjunction with concrete pumps. It is suitable for the construction of high-rise buildings and large-area concrete pouring projects. Reduce construction cost, improve concrete pouring quality and construction progress.

For the safety of construction personnel, the safety operation process of wet concrete spraying manipulator is specially made:
1. It is strictly forbidden to use the manipulator as a crane or lifting platform.

The operator of the delivery pump should concentrate on the pumping construction and pay attention to the reading of the pumping pressure gauge at all times. Once the reading of the pressure gauge suddenly increases, the pump should be reversed for 2 to 3 strokes immediately, and then the pump should be corrected. The blocked pipe can be eliminated . If the blocked pipe has not been eliminated after reverse pumping (forward pumping for several operating cycles),

At present, the concrete wet concrete spraying truck shotcrete truck, as a kind of concrete machinery and equipment favored by the majority of construction parties, has greatly improved the efficiency of construction.

The fine stone concrete pump is a special concrete pump, which is welcomed by the majority of construction parties because it is widely used in floor heating projects and floor construction. So at the construction site, what are the pumping requirements for the fine stone concrete pump? Now let's take a closer look.

The service life of concrete pumps has always been a concern of the majority of construction parties. If you want to extend the service life of concrete pumps, you must pay attention to the maintenance of concrete pumps. Many customers only know to pay attention to daily maintenance, but how to maintain and check?

In the construction of concrete pumping, the cleaning of concrete is an essential and important step after pumping. A good cleaning method can not only clean the pipeline, but also transport all the concrete in the pipeline to the pouring site, not only does not waste concrete, And economical and environmentally friendly. There are three main types of water washing methods commonly used in S-tube valve concrete pumps, which are described as follows

Shotcrete machine is the core equipment in shotcrete construction, and is widely used in related shotcrete support projects such as construction, municipal administration, railway and highway tunnels, foundation pits, mines, and slopes. With the rapid development of underground spaces such as highway and railway tunnels, urban subway tunnels, and mining resources, the demand for concrete shotcrete is increasing

The concrete placing boom is a concrete equipment for conveying and distributing, which is connected with the outlet of the concrete drag pump.
As an auxiliary equipment of the concrete pump, it is connected by a standard conveying pipe, just like a manipulator, which can quickly and accurately deliver the concrete to any pouring part of the working surface for continuous pouring, expand the concrete pumping range, and effectively

Concrete wet concrete spraying shotcrete truck is a special shotcrete support equipment that sprays ready-mixed concrete to the sprayed surface at high speed, and forms a concrete support layer through rapid setting.

The concrete placing boom adopts a 360-degree full-rotation boom-type placing structure. The whole machine is easy to operate, flexible to rotate, and has the characteristics of high efficiency, energy saving, economy and practicality. Concrete placing machine is to expand the scope of concrete pouring.