Efficient vertical roll milling machine capable of realizingwith multi-stage crushing

Abstract

The invention discloses an efficient vertical roll milling machine capable of realizingwith multi-stage crushing. The efficient vertical roll milling machine comprises a box body, wherein the left side of the top of the box body is communicated with a feeding pipe; a first motor is fixedly connected onto the top of the box body; the bottom of the output end of the first motor penetrates to the inner cavity of the box body and is fixedly connected with a first rotating rod. The disc matched crushing form of the conventional vertical roll milling machine roller disc matched crushing form is omitted; through the matched use of the first motor, a crushing cutter blade, a fixed cutter blade, a first inclined plate, an electromagnetic valve, support legs, a second motor, a driving gear, a drivengear, a milling roller, a second inclined plate, a conveying case, a third motor, a conveying shaft, a material detection sensor and a processor, the automatic multi-stage crushing on the materials can be realized; the material crushing quality is ensured; the crushing efficiency is improved; in addition, the structure is compact; the technical flow process is simple and safe; the abrasion consumption is low; the production cost is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of roller mills, and in particular relates to a high-efficiency vertical roller mill capable of multistage crushing. Background technique [0002] Vertical roller mill, referred to as vertical mill, is used for grinding cement raw material, cement clinker, slag and coal slag. It is mainly composed of machine body, roller disc device and transmission device. , when the grinding disc rotates, the material moves to the grinding track of the grinding disc, and is crushed by the grinding roller in the track. The crushed material is blown up by the hot air, and the coarse-grained material will fall back to the grinding disc. The qualified fine powder is collected by the dust collection equipment. The coarse powder that does not meet the qualified standard falls back to the grinding table again and is crushed together with the newly input materials. The whole process is cyclical. [0003] The main disadvantages of...

AI Technical Summary

Problems solved by technology

[0003] The main disadvantages of the traditional vertical roller mill are: (1) The crushing efficiency is low. The vertical roller mill crushes single-layer materials through the cooperation between the rollers. The materials that need to be crushed again are crushed at the same time as the new materials, reducing the Crushing efficiency

(2) The wear is relatively large, which increases the production cost. The structure of the vertical roller mill is complex. All forces act on the effective rolling area of ​​the vertical mill roller

Once there is a fit gap, there will be an impact collision between the body and the liner, which will intensify the wear between the body and the liner. In severe cases, the liner will crack or even break, causing the liner to fall off and damage the machine, especially the reducer. Damage, causing vicious incidents, and the general repair method is difficult to solve, dismantling, welding repair, machining is time-consuming and laborious, resulting in greatly prolonged shutdown and production stoppage, bringing huge irreparable economic losses to the enterprise

(3) The vertical roller mill separates and screens the coarse material and the fine material by entering and exiting the hot air during use. The coarse material will fall back to the grinding disc for crushing due to gravity. According to the material properties, the gas properties of the hot air are selected and the temperature is high or low. Adjustment and pressure adjustment increase the difficulty of the process, and inadvertent control will lead to system combustion, explosion and other phenomena

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