Reasons And Treatment Measures For High Differential Pressure Of Vertical Ultrafine Mill
1, the feeding capacity is large and the grinding ability is not enough. Treatment: according to the Ultrafine Mill power, appropriate reduction.
2, the product is too fine, and the internal circulation load is high. Treatment: reduce the speed of the pulverer.
3, the pulverized machine may be blocked. Treatment: stop grinding inspection.
4, the guide angle of the pulverized machine is too narrow or too long, which restricts the smooth passing of the material.
5, the overburden ring is too high, and the internal circulation load is high. Treatment: stop grinding adjustment.
6, the scraper plate is broken or dropped, and the material is not formed. The material baffle is broken or dropped to form a large amount of back material. Treatment: stop and wear maintenance.
7, the air flow in the Ultrafine Mill is small, which affects the material passing through the pulverized machine. Treatment: the Ultrafine Mill fan increases the pumping air and regulates the inlet valve of the fan.
8, the grinding pressure tube is blocked and the grinding pressure (negative pressure value, return is smaller, resulting in the higher differential pressure display in the Ultrafine Mill. ” Handling: notify the dashman for handling.
9, the grinding temperature is too high, the wind speed is too fast, the material can’t be formed on the disc material layer, suspended in grinding, resulting in high pressure difference. Treatment: adjust the temperature of the humidifier or adjust the wind (or circulating wind), reduce the temperature of the wind and slow down the wind speed.
10, operation of internal and external wind is too much or feed back. The side door of zipper is opened, resulting in the decrease of grinding pressure, slowing down the internal circulation of grinding system, increasing the return of external circulation, enriching it, resulting in higher differential pressure inside the Ultrafine Mill. Treatment: in the operation, the internal circulation of the grinding system is adjusted, the back material of the external circulation is increased, the doors are closed, and the occurrence of the air leakage is eliminated.
11, the abrasiveness of the material is very poor, and the material is hard to wear, which causes the high pressure difference in the grinding. Treatment: reduce production operation or increase pressure or on-site inspection pressure tank.
12, the vertical Ultrafine Mill run for a long time, which makes the quartz crystal content in the Ultrafine Mill increase, which makes the material hard to wear and the differential pressure increases. Treatment: reduce production operation or remove this part of the material out of the Ultrafine Mill.