concrete pump reasonable steps to select

(1) Selected concrete pump should first put into use in engineering units to meet concrete pumping the maximum amount of time (one or several combined yield), maximum distance and maximum pumping height requirements (and there should be a reserve) to Concrete mixing plants the maximum pumping concrete pump concrete pressure, or to vote for the election of low-pressure pump high pressure pump, or select a standard pump. Depending on the situation, the general level of transmission within a distance of 400 vertical height in the following optional low-pressure pump, such as mold inside the tunnel lining, low-pressure pump fully meet the construction requirements. Beyond the scope of the above should be based on the actual situation, choose different maximum pressure pumping concrete pressure pump. (2) concrete pump should be selected to meet the operational requirements of engineering concrete persons. Such as concrete slump, maximum size of coarse aggregate, gravel grading, concrete disabilities are low-intensity or high intensity. If the maximum size of coarse aggregate inconvenience control, selectable with good suction gate valve concrete mix plant; if the maximum size of coarse aggregate is strictly according to the standard supply, the choice of the general suction valve concrete pump . (3) concrete pump should be selected according to the construction site power supply conditions. Where there is a system power supply, the capacity to meet the requirements, it should be to opt for electric pump, otherwise it should be used in these pumps. (4) tunnel construction, rail transport operations should be used in concrete pump track, trackless transport operations used tires mounted concrete pump. (5) from construction operations near explosive gases, such as oil depots, chemical plants, the "gas" in tunnel construction workplace should be used in explosion-proof concrete pump.