Learn - May. 28, 2020
Slurry pump is a kind of centrifugal pump which has evolved in recent years due to the larger material transportation particles and has higher efficiency and relatively stronger performance. Conceptually, a slurry pump refers to a machine that converts electrical energy into kinetic energy and potential energy of a medium by increasing the energy of the solid and liquid mixed medium through the action of centrifugal force (the rotation of the impeller of the pump). It is mainly used in mining, power plants, dredging, metallurgy, chemical industry, building materials and petroleum industries.
Slurry pumps generally refer to pumps suitable for conveying liquid (water) containing suspended solids as slurry pumps. At present, it is one of the indispensable types of equipment in each process flow of beneficiation and coal preparation plants. Slurry pumps can be divided into single-stage / multi-stage, single-suction / double-suction, cantilever, horizontal / vertical, and horizontal / open / vertical combination of pump casing according to different principles. The basic structure consists of impeller, pump casing, pump It is composed of the shaft, bearing and bracket. The power also includes the motor, counter-wheel or tape wheel coupling, etc., wear-resistant parts also include bushings of lining plate, seals include shaft seal, auxiliary impeller, etc., support parts include brackets, etc. However, the internal principle is the same. When the impeller rotates quickly, the blades cause the medium to rotate quickly. The rotating medium flies out of the impeller under the action of centrifugal force. After the medium in the pump is thrown out, the central part of the impeller forms a vacuum In the area, the medium is pressed into the feed pipe through the pipe network under the action of atmospheric pressure (or water pressure). In this way, continuous feeding can achieve continuous feeding, so as to achieve the head and flow required by the process design. Of course, the feeding method currently uses the press-in type, that is, the material level is higher than the feeding tube, and the step of pouring water from the upper water pipe or the pump casing into the interior can be subtracted.
The above information is provided by slurry pump manufacturers.
First of all, we must understand the causes of chemical pump corrosion. For the classification of corrosion, there are generally two classification methods, one is based on the mechanism of corrosion, and the other is based on the cause and appearance of corrosion.