Slurry pumps are widely used in production and life, mainly in environmental protection, municipal engineering, thermal power plants, gas coking plants, oil refineries, steel plants, mines, paper industry, cement plants, food factories, printing and dyeing factories and other industries. Concentrated liquid, heavy oil, oil residue, turbid liquid, mud, mortar, quicksand, flowing sludge, fluid containing mud and sand residue and corrosive liquid in urban sewage pipeline. 1. The blades in the impeller of slurry pump force the fluid to rotate, that is, the blades act on the fluid along the moving direction of the fluid, forcing the pressure potential energy and kinetic energy of the fluid to increase. At the same time, under the action of inertial force, the fluid flows from the middle to the edge of the impeller, flows out of the impeller at a high speed, enters the pressure chamber, and then is discharged through the diffuser. This process is called hydraulic process. 2. At the same time, because the fluid in the middle of the impeller flows to the edge, a low pressure area is formed in the middle of the impeller. When it has enough vacuum, the fluid enters the impeller through the suction chamber under the action of suction pressure. This process is called water absorption process. Due to the continuous rotation of the impeller, the fluid is continuously discharged and sucked, forming continuous operation. Hebei Yingdike Pump Industry Group Co., Ltd. is a professional manufacturer of slurry pumps, submersible slurry pumps and sand suction pumps. It is an enterprise integrating research, development and production in Hebei Province.