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目前显示的是标签为“vacuum pump”的博文

Concrete pump truck

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Concrete pump truck is the use of pressure to convey concrete along the pipeline continuous machinery. Consists of pump body and delivery pipe. According to the structure is divided into piston type, squeeze type, hydraulic diaphragm type. Pump body mounted on the chassis of the car, and then equipped with telescopic or inflatable fabric rod, to form a pump. Oil vacuum compressor lubricant vacuum pump with oil filter Concrete pump truck is equipped with a stirring cone on the car chassis and its rotary drive system and other components, the transport operations in two ways: 1) long-distance (usually more than 15km) delivery, the eight dry mix, to be reached 10 to 15 minutes before the site of use, start stirring cone rotation (speed 8 ~ 12r / min), and by the car equipped with a tank to the cone tube quantitative water, the dry mix into concrete until the construction site and then Reverse the material will be discharged, 2) within 10km when the input is only used as trans...

Pump selection

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Second, we know the basic basis for pump selection     Pump selection basis, should be based on process, water supply and drainage requirements, to be considered from five aspects, both liquid delivery capacity, the device head, the nature of the liquid, piping layout and operating conditions aluminium metal coating spray     1, the flow rate is one of the important performance of the election pump data, which is directly related to the entire plant's production capacity and delivery capacity. Such as the design process can be calculated in the pump normal, minimum, maximum three kinds of flow. Select the pump, based on the maximum flow, take into account the normal flow, in the absence of the maximum flow, it is usually desirable 1.1 times the normal flow as the maximum flow. metal wire coating machine     2, the lift system required for installation of the pump is another important performance data, generally ...