The ultrafine mill is one of the widely used equipment in the powder making industry. According to industry statistics, the share of ultrafine mill in domestic grinding industry is over 70%. However, as the production progresses, the mill capacity will decrease, which will affect the production efficiency. This article shares 2 reasons why the capacity of the ultrafine mill decreases and how to increase the capacity.
1. The classifier is not working
The classifier of the ultrafine mill is responsible for analyzing the size of the finished powder, whether it meets the standard of the finished product and whether it needs to be reground again. When the impeller of the classifier is severely worn, it will not play the role of classification and will cause the finished powder to be coarser and finer, this situation can be solved by replacing the classifier impeller with a new one.
2. The fan is not adjusted properly
If the air volume of the fan of the ultrafine mill is not adjusted properly or the air volume is too large, the powder output of the mill will be abnormal, and the finished powder will be too coarse. If the air volume is too small, the finished powder will be too fine. Check other conditions and make sure there’s no abnormal condition, the air volume of the fan should be adjusted to correct the powder particle size.
Generally speaking, in order to increase the ultrafine mill capacity, the following requirements are required:
1. Scientific and reasonable collocation
When the ultrafine mill is working, on one hand, it is necessary to consider whether the selection of equipment model can meet the daily production requirements and avoid overloading work of the equipment. The hardness of raw material should not be very high, hard material is likely to cause block at the discharge port, causing difficulty in discharging powder.
2. Reasonably choose the main engine speed and improve the main engine grinding force
Considering the carrying capacity of the main engine motor is a factor to improve the production efficiency of the ultrafine mill. Increase the running energy of the mill, adjust the belt or replace it with a new one.
3. Regular maintenance
After using for a period of time, the ultrafine mill should be overhauled. At the same time, the wearing parts such as the grinding roller and grinding ring should be overhauled and replaced. The connecting bolts and nuts should be carefully checked before and after use to see if there is any looseness and whether the grease is enough. The above is the most comprehensive technique and analysis reason.