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In addition to completing daily tasks, concrete pump trucks should also have the habit of maintaining on time. When the pump truck is performing concrete pouring operations, if the repair and maintenance are not in place, it will cause hidden safety hazards.

When the inner wall of the pump cylinder of the concrete pump truck is damaged, it should be taken out for repair immediately, or it should be turned around. In order to facilitate maintenance and replacement of the concrete cylinder, we can set a movable door cover at the bottom of the concrete hopper. The opening and closing of this movable door cover can be completed by the movement of the oil cylinder. At the same time, the concrete cylinder body can also be pulled out from this opening.

In the current process of dike construction, the workload of long-distance earth adjustment operations is increasing. Therefore, many people think that the efficiency of the underground wheel loader scraper is low, and the scraper is useless. What role does the scraper have in the actual project?

Skilled operation of the wheel loader for loading and unloading activities can not only clarify the various mechanical functions, but more importantly, it is necessary to skillfully operate the machinery and rely on experience or use specifications to reduce the loss of equipment during the loading and unloading process. The relevant operation instructions are as follows:

The use efficiency and service life of the mining underground wheel loader are closely related to the management method of the using enterprise. Once neglected management will lead to an increase in the abnormal loss of equipment, resulting in an increase in the incidence of failure and even burying hidden safety hazards. So, what are the undesirable status quo in the use of current mining loaders?

The first is to load the material, get the material into the mixing tank, the mixing tank is driven by the motor to operate, and the mixed concrete is poured into the material bucket. The material in the hopper must enter the conveying cylinder. The conveying system is powered by the hydraulic system. The conveying cylinder is pushed through the oil cylinder, and the concrete is sucked and sent one by one. Concrete mixing tractor is composed of concrete mixing and pumping professional equipment.

In the hot summer, the outdoor temperature on the construction site often exceeds 40 degrees. The long-term construction will cause the engine of the pump truck to heat up and the temperature of the hydraulic oil will rise, and the hot heat will further exacerbate the temperature of the engine and the hydraulic oil. So, what measures should we take to maintain the pump truck and its engine in the hot summer?

The small concrete pumping pressure value has two values of high pressure and low pressure. When the main hydraulic cylinder is driven without a rod cavity, the corresponding outlet pressure is high pressure; when the small concrete pump main hydraulic cylinder is driven by a rod cavity, the corresponding outlet pressure is low pressure.

The function of fine stone concrete pump on cement in the pumping process: The pumping pressure of concrete is transmitted by the liquid phase substance in it. The liquid phase material carries the solid phase material and moves together to complete the pumping. There are two aspects of the role of cement. One is the cementation effect, which enables the concrete to maintain the state of solid phase material surrounded by liquid phase material during pumping;

With the continuous progress of the production technology of wet concrete spraying machinery and related materials and equipment, wet sprayed concrete will be widely used as a mature construction method.
1. Overview of sprayed concrete technology
1.1 Sprayed concrete process principle and characteristics