Underground Mine Submersible Slurry Pump

　Underground mine submersible slurry pump

Submersible slurry pump can be widely used in mining, power, metallurgy, coal, environmental protection and other industries to transport slurry with abrasive solid particles. For example, slurry transportation in metallurgical concentrator, hydraulic ash removal in thermal power plant, coal slurry and dense medium transportation in coal washing plant, river dredging, river desilting, etc. In the chemical industry, it can also transport some corrosive paste containing crystallization.

1. Structure description of submersible slurry pump

Besides the main wheel, a set of stirring impeller is added at the bottom of the submersible slurry pump to spray the precipitated slag into a mixture of water and solid particles. So that the pump in the absence of auxiliary devices can achieve high concentration of transport. The unique sealing device can effectively balance the pressure inside and outside the oil chamber, keep the pressure balance at both ends of the mechanical seal, ensure the reliable operation of the mechanical seal and greatly extend its service life. According to the user's requirements, the motor can add various protection devices such as water inlet detection and overheating, so that the product can operate safely for a long time under harsh working conditions.

2. Structural characteristics and working principle

The submersible slurry pump is a coaxial pump and motor. When working, the pump impeller is driven by the motor shaft to transfer energy to the slurry medium to generate a certain flow rate to drive the solid flow and realize the slurry transportation.

3. The main features of submersible slurry pump are as follows

The whole machine is a dry-type motor pump structure. The motor adopts mechanical seal protection, which can effectively prevent high-pressure water and impurities from entering the motor cavity. In addition to the main impeller, there is also a stirring impeller, which can stir the slag precipitated on the bottom into turbulence and then extract it. The impeller, mixing impeller and other main flow passage parts are made of high wear-resistant materials, which are wear-resistant, corrosion-resistant, non clogging, strong sewage discharge capacity, and can effectively pass through large solid particles. It is not limited by suction distance, with high slag absorption efficiency and more thorough desilting. Without auxiliary vacuum pump, the investment is lower. It is easy to operate without auxiliary mixing or spraying device. When the motor submerges into the water, there is no need to build complex ground protection and fixed devices, and the management is easier. The impeller directly contacts the deposition surface and controls the concentration through the depth of submergence, so the concentration control is more flexible. The equipment is directly submerged to work, no noise and vibration, and the site is more tidy.

4. Selection chart of submersible slurry pump

5. Submersible slurry pump at site