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The location of the pump truck should be flat and firm, with no obstacles around it and no high-voltage power lines in the sky. Pump trucks must not be parked on slopes.

Saintyol DAWIN self loading concrete mixer factory welcome Iran friends visit and negotiate order details for Iran market for long run cooperation relationships.

Today, I have summarized some rules for you to pay attention to when operating a concrete pump truck. How to do it correctly and according to the regulations. Here are some important points to share with you:

At the top dead center of the oil cylinder, check whether the S valve is operating at normal speed and position. After the oil cylinder reaches the top dead center, it will automatically change direction. At the top dead center of the oil cylinder, check whether one of the two swing valve cylinders reaches the discharge port correctly.

Many people don't understand the importance of the cleanliness of pump trucks. Many people mistakenly think that as long as the equipment is checked regularly and there is nothing wrong with it, it is not the case. Its cleanliness also has a crucial impact on pumping. Let me analyze for you today, how big the impact is.

Secondary piston: In the state of electronic control, the secondary oil flow of the pilot controls the secondary piston independently. The negative flow does not participate in direct control, but the pressure parameter is collected by the negative pressure sensor and provided to the computer, which is calculated by the computer as the control electric ratio A parameter of the valve current is used to control the secondary oil flow of the pilot;

Control electronic control state: The control hydraulic signals related to the displacement change are the oil flow of the front pump, the oil flow of the rear pump, the pilot oil and the negative flow. The oil flow of the front and rear pumps directly controls the oil pump, and the pilot oil is throttled by the electric proportional valve.

Concrete delivery pumps are widely used in practice. Saintyol DAWIN Machinery believes that the operation details of small concrete delivery pumps mainly include the following points based on years of production and research experience:

Concrete mixer pumps are used frequently in the construction process of construction projects and play an important role in construction. From the content of concrete equipment construction operation, the level of its operation is directly related to the quality and safety of construction projects.

Concrete pumps are relatively commonly used mechanical equipment nowadays. When purchasing concrete pumps, not only the scale of the manufacturer and product quality must be considered, but also some professional knowledge of the products must be considered.

The mixer pump is a small concrete delivery pump that adopts a fully automated construction operating system and integrates feeding, mixing and high-pressure pumping. The pump is easy to operate, stable in performance and easy to move.

What are the pumping principles of the truck mounted shotcrete machine? How does the concrete delivery pump carry out the pumping of concrete? Based on long-term repeated tests and customer research, Saintyol DAWIN Machinery believes that there are many factors that affect the material absorption of the agitator pump pumping system, which are independent of each other and affect each other,

Saintyol DAWN 8m3/hr 76KW diesel engine wet concrete spray machine shipped to Indonesia

With the construction of mine roadways, railway and highway tunnels, water conservancy culverts, and various underground projects in the country, the internationally advanced support method of shotcrete support is widely used. Concrete shotcrete is the main equipment for this operation, but due to There are three major problems in dry spraying machines: ① large dust, ② high rebound, and ③ poor quality.

The layout of the concrete pump pipe must pay attention to the following points: 1. In order to reduce the pumping resistance, try not to place a 90-degree elbow immediately at the outlet of the concrete pump. The correct pipe layout method is to place a short pipe of 1 to 2 meters at the outlet of the concrete pump, then connect a 3-meter straight pipe, and then consider the problem of connecting a 90-degree elbow to the ground. This has two purposes.

Things to pay attention to when choosing a concrete pump truck construction:

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.