Application characteristics & common troubleshooting of spiral jet mill
The grading wheel of the jet mill is divided into vertical and horizontal installations, but no matter which type, its composition includes the transmission motor, the grading wheel, the fine powder discharge port, the raw material inlet and the air inlet. It is widely used in many industries and is an excellent Machine tool.
The spiral jet mill can be applied to calcite, barite, quartz, gypsum, silica, corundum, cement, alumina, etc. Its application characteristics are introduced below.
1. Reduce cost, suitable for low value-added coarse powder.
2. Simple structure, convenient maintenance, few wearing parts, low operating noise and low energy consumption.
3. The classifier adopts large-diameter single-stage classifying wheels to improve production capacity.
4. The inner wall is smooth and wear-resistant, which is more conducive to material grinding.
5. It adopts negative pressure operation, does not leak dust, and meets environmental protection requirements.
6. Stable and reliable operation, high product uniformity.
Spiral jet mill is a common industrial grinding equipment with excellent performance and is widely used in the grinding process of various materials. In order to make the machine run more efficiently and safely, the machine should be checked regularly to troubleshoot the machine failure. The following describes some common troubleshooting.
Feed recharge: improper adjustment of the air door, blockage of the pipeline, clogged sieve, poor air permeability or severe wear of the dust bag, severe wear of the hammer surface, etc. will cause the feed recharge. When this phenomenon occurs, you should first find out the cause, and then take the elimination measures, or remove the valve, replace the powder bag, improve the air permeability, or replace the hammer.
Bearing overheating: The bearing is poorly lubricated, damaged or the main shaft is bent, the rotor is seriously unbalanced, and the belt is too tight, and the bearing is overheated. Change the oil, replace the bearing and main shaft, balance the rotor, adjust the belt tightness, etc. to restore the bearing to normal.
The jet mill vibrates strongly: the hammer head is installed incorrectly, the corresponding weight deviation of the two sets of heavy hammers is large, the bearing is damaged or the main shaft is bent, the foot and the screw are loose. For specific reasons, proceed step by step.
Abnormal noise inside the grinder: If parts of the grinder are damaged, fall off or hard objects such as iron and stone enter the machine, abnormal noise will be emitted. The machine should stop running immediately, replace damaged parts or remove hard objects.
Low production efficiency: low production efficiency, insufficient motor power, improper preparation of pulleys, belt slippage, serious hammer wear, uneven raw materials or high moisture content of raw materials. Regular inspections of machines and equipment are required to ensure normal operation, which not only ensures the safety of people’s production, but also improves the efficiency of equipment.