The main purpose of the
Ultrafine Mill operation optimization is to achieve high-quality, stable production, there are many factors affecting the operation optimization of vertical mill, such as mill technology, grinding process, grinding type, specifications, physical properties, grinding material feeding amount and uniformity, product fineness, powder selecting efficiency and cycle load, grinding pressure, these factors affected each other each other. This paper mainly introduces the optimization operation of several vertical mills.
1. Adjust feed. Adjust the moisture of grinding material. When the average moisture of the material exceeds the drying load of the mill, the material will be bonded on the roller table to form a buffer layer, thereby reducing the grinding efficiency, so the moisture content into the abrasive should be strictly controlled within 12%. Adjust feed quantity according to mill load. In order to give full play to the efficiency of the mill and make the mill reach a higher output, it is necessary to maintain a steady and proper amount of feed, which can be adjusted in time according to the change of power or current of the mill so as to restore the normal operation of the grinding operation.
2. Adjust circulation. After the stability of the mill, it is not appropriate to change the amount of circulation at any time, so as not to affect the stability of the system, usually in the re blending or material size change, only to adjust. According to the change of the current value of the bucket and the change of the titration value of the calcium carbonate, the circulation quantity can be adjusted in time to make it stable in the proper range.
3. Adjust the hot air. Ensure hot air balance. The mill is the wind swept a special grinding equipment, only to achieve a dynamic equilibrium in drying capacity and grinding ability, can realize stability of the system, therefore must be based on the correct condition, timely adjustment of hot air, to meet the requirements for dry grinding. Adjustment includes hot air temperature and air volume. The principle of adjustment is that under the premise of ensuring the safety of equipment, the faster drying speed should be achieved, the grinding capacity of the mill can be balanced with the drying capacity, and the heat consumption will be reduced.