The Important Internal Ventilation of Cement Mill

As everyone knows, the seemingly insignificant details will have great effect on the output and efficiency of the equipment. When purchase a machine, we aims at its high yield and efficiency, which is the same with buying a cement mill. The internal ventilation to the cement mill, what the water is to fish. The internal ventilation is not only a timely manner to discharge the powder inside the mill, so as not to affect the grinding efficiency; but also can reduce the grinding temperature of the cement mill to avoid the blockage of the gate caused by dehydrated gypsum and the paste balls.

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In general, the technical requirement of cement mill manufacturers is: the grinding speed should be greater than or equal to 0.5m/s. Some people think that ventilation is only related to the performance of the fan, which is not comprehensive. In fact, the ventilation of cement mill is directly related to the ventilation of the air lock system. For example, the commonly used ￠2.2m*6.5m/7m cement mill was designed in 1965 with the feeding inlet of 90 degree angle, and the materials will be around the corner in the retention areas, which greatly reduces the actual air inlet area and seriously hinder the mill ventilation.

It is what we often say the 'vent bottleneck' phenomenon. Theoretically High Productivity Micro Powder Mill, the best inlet section should be the same as the actual section of the mill drum, although it is unlikely, if in possible conditions Super Productivity Roller Mill, the bigger the inlet section is, the better the ventilation effect it will bring. It can weaken the 'ventilation...