1. Pump head structure. The pump body uses double pump shell (inside and outside double metal structure), double pump shell shell structure is vertical open, the outlet position can be installed at 45° intervals, rotating 8 different positions. In order to effectively prevent shaft seal leakage, the combination of dynamic seal, packing seal or mechanical seal is adopted. The impeller and the back guard plate are equipped with labyrinth clearance seal, which greatly reduces the leakage of slurry to the packing box and effectively ensures the reliability of the seal. The impeller is equipped with a back blade to discharge the backflow slurry in time, so as to improve the volume ratio, reduce the backflow and erosion, and improve the life of the flow parts. In order to facilitate maintenance and disassembly, the disassembly ring is provided to avoid the phenomenon of cutting shaft caused by the disassembly.
2. Bracket structure. In order to extend the service life of the bearing, the hydraulic design and structural design were optimized. The radial force and axial force are reasonably distributed, and the bearing form, type, cooling and lubrication mode are correctly selected, so as to meet the requirements of low heat and high life of the bearing.
3. Shaft seal form. The shaft seal device serves as a seal between the pump body and the pump shaft. Can prevent air intrusion into the pump and a large amount of water leakage from the pump. Centrifugal slurry pump seal form is usually adopted, vice impeller and packing seal, packing seal is hydrodynamic seal, vice impeller head resistance generated by vice impeller impeller outlet liquid leakage, at the same time using impeller cover plate set back water sealing ring and packing to prevent the air into the, again with back packing place of leaf and water seal ring to reduce the pressure, have prevent impurities from entering the sealing effect.

Slurry pump parameters figure