A mill material layer stabilization device
A stable material layer and milling technology, which is applied in grain processing and other directions, can solve the problems of reduced grinding efficiency of the mill and fluctuation of material layer thickness, so as to achieve stable grinding efficiency, ensure grinding effect, and maintain stable grinding efficiency Effect
Active Publication Date: 2015-08-12
NANJING XIPU CEMENT ENG GROUP
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is that there is a certain fluctuation in the thickness of the material layer when the existing LM type vertical roller mill grinds clinker or slag, which causes the grinding efficiency of the mill to decrease
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with accompanying drawing.
[0016] Such as Figure 1-6 As shown, the present invention discloses a material bed stabilization device for a mill, which includes a bearing seat 4, an auxiliary material roller 8, a pressurizing device 11 and a limiting device.
[0017] The bearing seat 4 is fixedly connected to the peripheral vertical mill shell through the cooperation of the washer 1, the nut 2 and the bolt 3;
[0018] The auxiliary material roller 8 includes a shaft and an elliptical entity 8-1 which is surfacing with wear-resistant material and is arranged at one end of the shaft; The seal 6 is used to isolate dust and prevent the support bearing 5 from being polluted. The entity 8-1 is located in the vertical mill shell and is arranged in front of the grinding roller 12 of the vertical mill. The material is fed under the grinding roller 12 after being compacted by the auxiliary material roller 8 Gr...
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The invention discloses a material layer stabilizing device of a mill. The material layer stabilizing device comprises a bearing base, a material spreading roller and a pressurizing device, wherein the bearing base is fixedly connected to an external vertical mill shell by a fastener; the material spreading roller is arranged on the bearing base by two supporting bearings; the pressurizing device and the material spreading roller are respectively arranged at the two ends of a connecting piece; when the sum of torques generated by the pressurizing device and the material spreading device is zero, the material spreading roller is in a non-rotation balance state; an upper limiting piece is arranged above the connecting piece and a lower limiting piece is arranged below the connecting piece; when the upper limiting piece pushes against the connecting piece, the thickness value of materials passing through the material spreading roller is the minimum value; when the lower limiting piece pushes against the connecting piece, the thickness value of materials passing through the material spreading roller is the maximum value. According to the material layer stabilizing device of the mill disclosed by the invention, the material spreading roller is arranged to control thickness of a material layer entering a flour mill when an LM type vertical roller mill is used for grinding clinker or slag, so that stable milling efficiency of the mill is ensured.
Description
technical field [0001] The invention relates to a material layer stabilizing device for a mill. Background technique [0002] In a modern cement factory, the vertical roller mill integrates the functions of grinding, homogenization, drying, powder selection and transportation, and is more and more widely used for grinding cement and its raw materials. The LM type vertical roller mill has the following functions Features: compact structure, occupying a small space, and only need a small space; low operating noise: the noise mainly comes from the roller mill, transmission system and sealed fan; the rocker arm is used to control the roller independently, and the roller is controlled mechanically and hydraulically. While reducing noise and vibration, it prevents direct contact between the grinding roller and the grinding disc liner; it can feed coarser materials, which can save energy consumption for pre-crushing and improve energy utilization; the wear of the metal is low, and ...
Claims
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IPC IPC(8): B02C15/00
Inventor 王玉荣李德祥赵玉会朱宽平孙云
Owner NANJING XIPU CEMENT ENG GROUP