Multistage pump model parameters in mines, mine multistage centrifugal pump model parameters

MD type mine multistage centrifugal pump is a kind of horizontal single-suction multi-stage segmental vertical centrifugal pump, the suction for the horizontal direction, export and horizontal vertical. inlet section, middle and outlet section, bearing body part for pump housing by tightening bolts couplet, and choose according to pump lift pump series. Mine multistage centrifugal pump can be used in factories, mines and drainage, municipal sewage plant, and other fields, can transport medium not containing solid particles content is greater than 1. 5% and similar wastewater, is the medium temperature should not exceed 80 ℃.

MD type mine multistage pump by the pump body, impeller, shaft, balance disc, such as inlet and outlet parts, including the material of water pump shaft can use 45 #, 2 cr13, pump overall material can be selected according to user needs three classes of cast iron, cast steel, stainless steel material.

MD type mine multistage pump rotor parts is mainly composed of shaft and installed on the shaft of the impeller, shaft sleeve, the balance disc parts, such as the quantity according to the series of the pump impeller. Shaft parts through the key and the spindle nut fastening and axis couplet. Both ends of the rotor by rolling bearing or sliding bearing, bearing according to the different models, are not under axial force, and the axial force by the balancing disc. Allows the rotor in the operation of the pump in the pump shell axial float, cannot adopt the centripetal ball bearings. Rolling bearings with grease lubrication, sliding bearing with thin oil lubrication, and the self lubricating oil ring, circulating water cooling. MD type mine multistage pump inlet section, middle, water segment between the sealing surface of molybdenum disulfide grease seals, between rotor part and fixed part is equipped with seal, guide vane, etc, when the seal ring and the degree of wear of guide vane set has affects the working performance of the pump should be replaced. Shaft seal form has two kinds of mechanical seals and packing seal. using packing seal, the location of the packing ring placed to the right, the tightness of packing must be appropriate, with liquid can drip seeps advisable. Loading pump seal element in a sealed cavity, cavity access to certain pressure of water, the water seal, water cooling or water lubrication. Equipped with a replaceable shaft sleeve in shaft seal place, in order to protect the pump shaft.

MD type mine multistage centrifugal pump model parameter

flow Q: 3. 7 - After 1350 m/h

head h: 49 - 1800 m

motor power: 3 - 1120 kw:

speed 2950 r/min import caliber:

exit diameter: 150 mm to 150 mm

MD type mine multistage centrifugal pump using conditions:

1, under the condition of water ( Containing solid particles less than 0. 1%) , 5000 h without overhaul operation, no more than 6% drop in efficiency;

2, containing solid particles. The sewage under the condition of 1% ~ 1% running 3000 h without overhaul, no more than 5% drop in efficiency;

3, 1 ~ containing solid particles. 5% under the condition of sewage, run 2000 h without overhaul, no more than 6% drop in efficiency;

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