Electric Sludge Pump In Coal Application
Industrial Sludge Pump in Coal Mining Applications
Our ZJ series electric sludge pump is indispensable in ore processing and coal washing plants, and its performance has an important impact on the production of coal preparation. This industrial sludge pump is a single-stage, single-suction, cantilever horizontal centrifugal mud slurry pump. It adopts internationally advanced solid-liquid two-phase flow theory and is designed according to the principle of minimum loss. The geometry of the mud slurry pump conforms to the flow state of the medium, reducing hydraulic losses such as eddy currents and impacts, both locally and along-the-line. This reduces the wear of flow-through components, improves hydraulic efficiency, and reduces operating noise and vibration. This series uses high hard alloy cast iron for its flow components and is resistant to abrasion, corrosion, and impact resistance, thereby extending the life of the sand slurry pump.
Notes for electric sludge pump use:
- Before starting, make sure that the rotation of the sludge pump shaft is consistent with the direction indicated by the arrow on the casing. The motor must be completely disengaged from the pump during the test run. It is strictly prohibited to drive the pump shaft to rotate in the reverse direction; this will result in damage to the parts.
- Before driving, packing must be added to ensure the supply of sealing shaft water is adequate. This sand slurry pump should never be run without water. Refuel, according to the oil level line of the oil standard before driving. It is strictly prohibited to drive without oil; this will result in burnt bearings.
- There should be no looseness in any fixed connection parts, and all are indicating instruments and safety protection devices should be accurately calibrated, sensitive, and reliable.
- The crank should be flexible and free from defects.
- Rotate the shaft by hand in the direction of the electric sludge pump. The shaft should be able to drive the impeller to rotate without friction; otherwise, the impeller clearance should be adjusted.
- To ensure efficient operation of the slurry pump, the gap between the impeller and the front guard must be adjusted in time. The gap between the pump impeller and the front guard should be between 0.5 and 1 mm. When adjusting the impeller clearance, you should first stop the electric sludge pump, loosen the bolts that compress the bearing assembly, and tighten the nuts on the adjustment bolt to move the bearing assembly forward. At the same time, rotate the shaft in the direction of pump rotation by hand.
- For metal-lined pumps, loosen the nut just tightened on the front half a turn, then tighten the front nut on the adjustment bolt to move the bearing assembly back. At this time, the gap between the impeller and the front shield should be 0.5 to 1 mm.
- After adjustment, before re-starting, it is necessary to re-check whether the impeller is rotating normally and whether the bearing assembly compression bolt and adjustment bolt are tightened.
