Summary Of Reasons For Excessive Power Consumption Of Slurry Pumps

Slurry pumps are generally used in large-scale industrial applications. The actual products can be widely used in mining, electric power, metallurgy, coal and other industries to transport slurries containing abrasive solid particles.It is specifically used in slurry transportation in metallurgical dressing plants, hydraulic ash removal in thermal power plants, coal slurry and heavy medium transportation in coal washing plants, etc.At the same time, it can also be used in the chemical industry to transport some corrosive slurries containing crystals, which requires special materials.

 The common application range of slurry pumps is in the mining industry, and about 80% of them are used in mineral processing plants in the mining industry.The working conditions of ore primary selection are relatively harsh, and slurry pumps are mainly used as the transport medium. Therefore, in this section, the service life of slurry pumps is generally low. Faced with different ores, the abrasiveness is also different, so high chromium alloy is now used as the main slurry pump material.

There are many materials for the flow parts of the slurry pump. The main operation process of the slurry pump is to rely on the motor to drive the impeller to rotate at high speed to generate centrifugal force and send the material out through the impeller.During operation, the flow-passing impeller volute must withstand the erosion, wear and corrosion of materials.Therefore, the wear resistance and corrosion resistance of the flow-passing parts of the slurry pump are important indicators for measuring the quality of the slurry pump.

　The problem of excessive power consumption often occurs during the use of slurry pumps. In response to this problem, the technical staff of the slurry pump company summarized the following reasons:

　1. The viscosity of the liquid being transported increases;

　2. SlagThe speed of the slurry pump becomes higher;

　3. The specific gravity of the transported liquid exceeds the original design value;

　4. The size of the water pump impeller is too large;

　5. The resistance of the piping system exceeds or is less than the predetermined value;

　6. RotorThere is friction between the parts and the stator parts;

　7. The flow rate of the slurry pump is too large;

　8. The pressure of the mechanical seal on the seal seat is too large, and the bearings are worn or damaged;

　9. The lift of the slurry pump is too low and the flow rate is too large;

　10. There is friction between the rotor parts and the stator parts;

In addition, if the balance device of the slurry pump does not work, the thermal expansion of different parts in the slurry pump is uneven, etc., it is also the reason for the excessive power consumption of the slurry pump.