Industrial equipment including slurry pumps requires regular maintenance. Next, let’s study the maintenance tips of the slurry pump.
1.After long-term use of the slurry pump, the surfaceof the cooler tube wall will form scale, so that the heat transport performance becomes bad. Meanwhile, it is necessary to replace the scaled cooler in time, turn on the cooler before the pump starts, and adjust the pressure to the specified value. Then, it is necessary to constantly check whether the pressure and flow of the bearing cooling water are appropriate. Generally, the slurry pump cooling water pressure is 0.05 MPa to 0.2 MPa, and the cooling water flow is 1 m3 / h to 3 m3 / h. Also, it is necessary to regularly check the bearing temperature rise (35 ℃), the higher temperature should not be greater than 75 ℃.
2.During the use of the slurry pump, the seal fails due to the wear of the packing. The slurry leaks along the shaft seal andinstantly fills the meniscus of the semi-circular positioning hole connecting the bracket and the rear pump casing. The slurry that has not been discharged from the feeding inlet infiltrates into the oil sump through the water-retaining plate, causing bearing damage. During routine maintenance, the leakage of shaft seal water should be regularly checked. When the amount of leakage increases, the bolts of the packing gland should be adjusted, and the packing and the failed O-sealing ring should be replaced in time to prevent the leaked slurry from seeping into the bracket oil bath along the shaft.
3.Lubricating oil can lubricate all parts of the bearing to reduce friction and abrasion. However, the quality of the lubricating oil should be checked regularly to prevent dust or oil aging and deterioration. Dirty lubricating oil can cause problems such as bearing friction, wear, temperature increase, and vibration. Lubricating oil should be adjusted strictly according to the pump instruction manual.Too much oil can’t take away most of the frictional heat inside the bearing, it can’t effectively dissipate heat, and it will also increase the temperature rise of the bearing; if there is little oil, it will cause the rupture of the bearing film, thus causing dry friction and burning out the bearing.
These small problems can have a major impact over time. Only timely inspection and repair can ensure the normal operation of the slurry pump.
