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Chinese Gypsum Vertical Roller Mill

Chinese Gypsum Vertical Roller Mill

Gypsum Vertical Roller Mill Raw Meal Size

Reasons For The Fineness Of Raw Meal And Treatment Measures

Reason: The raw material fineness is too fine because the material inside the Gypsum Vertical Roller Mill is ground, the finished material is not discharged in time to the outside of the Gypsum Vertical Roller Mill, causing secondary grinding of the material, the system ventilation is small, and the Gypsum Vertical Roller Mill is inside. The material circulation rate is large and the external circulation is also high, at which time the output is reduced.

Treatment Measures

  • 1. The material is easy to grind, the speed setting of the powder selection machine is too high, and the rotation speed is reduced while the fineness of the finished product is ensured, and the feeding amount is increased;
  • 2. The air volume is too small. Because the air volume is small, the qualified materials can not be discharged outside the Gypsum Vertical Roller Mill in time, resulting in secondary grinding. At this time, the output is low, and the measures are to increase the ventilation.
  • 3. The grinding pressure setting is too large. Reduce the grinding pressure.
  • 4. The grinding pressure difference is high. Adjust the grinding pressure difference.
  • 5. Reduce the internal and external circulation load rate. Due to the high external circulation rate and high internal circulation rate, the material stays in the Gypsum Vertical Roller Mill for a long time, which will cause secondary grinding and reduce the grinding (import, temperature, increase air volume, wait) Normally increase to normal level.
  • 6. The height of the retaining ring is not properly set. At this time, the height of the retaining ring can be moderately reduced.

Reasons For Raw Material Fineness And Treatment Measures

  • 1. The speed of the powder separator is slower (the speed can be increased, or the problem of the powder separator. If the wind guide blades fall off and the angle is not correct, the separator should be adjusted by mechanical inspection.
  • 2, the exhaust is too large, resulting in a small amount of external circulation. The ventilation should be reduced and the fineness should be reduced.
  • 3. The Gypsum Vertical Roller Mill is unstable, the vibration is large, and the low grinding pressure also causes the fineness to be too thick. The Gypsum Vertical Roller Mill should be stabilized to reduce vibration.

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