The fineness of the gray calcium mill can be adjusted among 325mesh to 3000 mesh, which is mainly can be used for processing the gray calcium, aluminum oxide, calcite, barite whose Mohs hardness is under 6.5. The white powder sierozem, namely the gray calcium powder is often used as the filling material. Unlike the ball mill, the gray calcium mill is widely used in chemical, paper, paint, food and other industries. The working principles of the gray calcium mill are the followings. When the gray calcium works, the motor of the host drives the rotation of the spindle and the turntables through the reducer. The roller pin at the edge of the turntable drives the rolling of the grinding roller in the rollaway nest of the grinding ring. The large pieces of the materials are crushed into small particles by the hammer crusher and they are sent to the storage silo through the elevator. Then the materials are evenly sent to the upper part of the turntable and the bulk material plate through the vibrating feeder and the sloping feeding tube. The materials are scattered to the circle around with the action of the centrifugal force and fall into the rollway nest of the rolling ring. The rotating impeller in the classifier makes the materials fall down for regrinding. The gray calcium mill machine produced by Henan Hongxing Mining Machinery has the following performance characteristics. First, the mill machine has the characteristics of high efficiency and low consumption. When the materials, energy, fineness of the materials and the power of the motor are the same, the efficiency of the calcium mill machine is 10 times higher than the efficiency of the jet mill, mixing mill and ball mill. Second, the fineness of the products can be adjusted. The advanced intelligent frequency control device is used. The fineness of the products can be adjusted by adjusting the powder. Third, the mill machine is safe, reliable and high-performance. There are no rolling bearings and the screws, so there will be no attrition problems for the bearing and the sealing parts. Forth, the wearing parts have long service life. The roller and the grinding ring are made of the special materials, which can greatly improve the degree of utilization.
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