The structure and installation method of the vertical slurry pump and the horizontal slurry pump are different from the appearance. The characteristics of the vertical slurry pump: the vertical slurry pump uses an auxiliary impeller to reduce the back pressure of the impeller and prolong the service life of the seal. At the same time, the flow parts use white wear-resistant cast iron, which is resistant to abrasion. In addition, the vertical mud pump has the characteristics of light weight and easy installation.
Application of vertical mud pump: Vertical mud pump is mainly used to transport slurry, mortar, ore slurry and similar liquids containing suspended solid particles. Such as the oil drilling mud purification system, the concentrator transporting concentrate slurry, tailings, coal slime, etc., suitable for the transportation of abrasive or corrosive slurries in mining, chemical, electric power, building materials, agriculture and other industries.
Principle of vertical mud pump: The vertical mud pump is connected by the solid at the lower end of the vertical shaft, the impeller, the bearing seat and the pump body rotate in the sliding bearing. The two ends of the bearing seat are compressed by the gland and the rolling bearing. At the same time, the bearing lubricant must be sealed without leakage. A motor bracket and a motor are installed in the pump body. The impeller rotates through the V-belt in the pump chamber, and the slurry is pressed out by the pressure of the impeller. In order to prevent the ore from penetrating the bearing, a centrifugal wheel is installed on the main shaft.
Slurry pump mechanical seal of slurry pump can be automatically compensated after long end face wear during maintenance period. Normally, no frequent maintenance is required. Good vibration resistance can prevent the vibration and deflection of the rotating shaft and the deflection of the shaft to the seal cavity. sensitive.
Slurry pump mechanical seal of slurry pump has a wide range of application. Mechanical seal can be used for sealing of low temperature, high temperature, vacuum, high pressure, different speed, as well as various corrosive media and media containing abrasive particles.
The surface layer of the slurry pump impeller produces thermal expansion under the action of cutting temperature, and the limitation of the basic body at this time produces thermal compression stress. When the temperature of the surface layer exceeds the elastic deformation range of the material, the material is relatively shortened under the action of compressive stress. When the cutting process is over and the temperature drops to the same temperature as the basic body, because the surface layer of the slurry pump impeller has undergone thermoplastic deformation, the surface of the impeller is limited by the basic body to produce residual tensile stress, and the inner layer produces compression. stress.
When the slurry pump impeller is processed, under the action of cutting force, the machined surface layer is subjected to tensile stress to produce elongation and plastic deformation. The surface area of the slurry pump impeller tends to expand. At this time, the inner layer is in an elastic state. After the cutting force is released, the inner metal tends to recover, but the surface layer of the slurry pump impeller has been restricted by the plastic deformation that has occurred and cannot return to its original shape. Therefore, residual compressive stress will be generated on the surface layer of the impeller at this time. Balance with the tensile stress of the inner layer.
Post time: May-21-2021