Multilayer planetary roller mill

Abstract

The invention relates to a multilayer planetary roller mill, which belongs to the field of powder grinding processing equipment. In the multilayer planetary roller mill, a grinding cylinder is fixedly connected with a hollow rotating shaft, a grinder roll bracket is a multilayer connecting bracket which is axially arranged at intervals, each layer of connecting bracket is movably connected with grinder rolls through connecting chains which are uniformly arranged in the radial direction at intervals, a central rotating shaft passes through a central axis of the grinder roll bracket to be fixedly connected with the grinder roll bracket, the central rotating shaft is sleeved inside the hollow rotating shaft to be integrally arranged inside the grinding cylinder, the central lines of the two rotating shafts are overlapped, the central rotating shaft and the hollow rotating shaft are respectively connected with a power device and rotate in reverse directions, and the grinder rolls rotate in opposite directions with the grinding cylinder inside the grinding cylinder. On one hand, the grinder rolls are driven by the grinder roll bracket and affected by the friction force with the grinding cylinder to obtain a higher speed than that of the grinding cylinder, and on the other hand, multilayer and multi-angle grinding working surfaces which are formed through the grinder rolls which are movably connected with the multilayer connecting bracket, the grinding working efficiency of the materials can be adequately improved and the escaping rate of the materials can be reduced.

Description

technical field [0001] The invention relates to a multilayer planetary roller mill, which belongs to the field of powder material grinding processing equipment. technical background [0002] At present, the more representative mill types are as follows: [0003] 1 Raymond mill type: the grinding cylinder (disc) is fixed, the single-layer roller frame drives the grinding roller to rotate, and at the same time, the grinding roller itself is self-propelled due to friction with the grinding cylinder (disc). The material is crushed and crushed. It is difficult to grind the powder in the center part. [0004] 2. MPS (medium speed) mill: the single-layer grinding roller frame is fixed, and the grinding cylinder (disk) rotates while friction drives the grinding roller to rotate. Due to centrifugal force, the material moves from inside to outside in the grinding cylinder (disc), and is crushed by grinding rollers. [0005] 3. Ball mills: the rotation of the cylinder brings the st...

AI Technical Summary

Problems solved by technology

The critical speed of the mill is low, and the speed cannot be increased

[0006] The existing above-mentioned types of mills have problems such as low grinding efficiency, large power consumption, low energy utilization rate, and bulky body.

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