Zhengzhou Huayang Machinery Equipment Co., Ltd.

The function of the ball mill partition plate is, on the one hand, to isolate the grinding bodies and materials in each chamber, so that the materials can be crushed and ground in the chamber, and to prevent large particle materials from escaping out of the discharge end. On the other hand, it is to control the movement of the materials in the mill. moving speed. Compartment boards can be divided into single-layer partition boards and double-layer partition boards. The single compartment plate is composed of a grate plate and a center plate. The double-layer compartment plate has the function of forcing the material to flow and is not affected by the material surface difference. Its structure consists of coarse screen plate, blind plate, support plate, front plate, fine screen plate, etc. However, whether it is a single-layer partition board or a double-layer partition board, the grate plate seams are mostly formed by casting, and the dimensions are difficult to be accurate. The grate plates are installed in the mill with bolts, and the gaps between each grate plate are different. When the mill is working, the partition plate is subject to strong impact and friction from the grinding body, and the grate plate is easily dislocated, deformed, or detached, causing ball movement, which affects the normal operation of the ball mill. The discharging grate plate of the grinding chamber is expected to have a larger grate width and larger void ratio due to the requirements of material passing and ventilation. However, due to the small size of the grinding body in the grinding chamber and the presence of broken grinding bodies, at the same time The discharge grate plate is also required to have a certain stiffness and strength. In order to effectively block small and broken grinding bodies from passing through the discharge grate plate, the width and void ratio of the discharge grate plate will be subject to certain restrictions. On the other hand, the grate The plate is also subject to strong erosion and friction by the abrasive body and wear, so wear-resistant steel castings are generally used. The structure and use of the current compartment grate plate. Practice has proved that the working condition of the ball mill compartment grate plate during operation has an impact on the grinding system that cannot be ignored. On the one hand, it affects the feeding capacity of the powder in the mill. , whether the powder can be discharged in time, without affecting the residence time of the material in the mill, and without affecting the material-to-ball ratio in the mill bin (failure to discharge the material in time will affect the distribution of materials in the area near the discharge grate plate), ensuring The second aspect of the grinding efficiency of the mill is its impact on the ventilation capacity of the mill. Especially in cement mills, the temperature inside the mill is relatively high. Good ventilation effect can not only take away a considerable part of the finished fine powder in time, but more importantly, it can reduce the The temperature inside the mill plays a great role in improving the grinding effect. Good ventilation effect also includes uniform ventilation, because non-uniform ventilation (such as local strong winds and small winds in other parts of the entire section of the compartment grate plate or outlet grate plate) will cause the local wind speed to be too high and take away the coarse powder. Small portions cannot take away the fine powder that should be taken away.
Zhengzhou Huayang Machinery Equipment Co., Ltd.
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