a vertical mill

Abstract

The invention discloses a vertical mill, which includes a casing. A feed pipe running through the inside and outside of the casing is provided on the bottom plate of the casing. An overflow port is provided at the upper end of the feed pipe and the overflow The opening is close to the inner wall of the top of the housing. The top plate of the housing is provided with a discharge pipe that penetrates the inside and outside of the housing. A rotating shaft is inserted into the discharge pipe. The outer wall of the rotating shaft and the inner wall of the discharge pipe are connected to each other. A guide channel is provided between them, a centrifugal disk is provided at the lower end of the rotating shaft and is located above the overflow port. A grinding rod is provided below the centrifugal disk. The outer wall of the centrifugal disk and the inner wall of the top of the housing are A discharging channel is provided between them. The upper surface of the centrifugal disk is provided with a groove that communicates with the discharging channel and the groove surrounds the outer circumference of the rotating shaft. The lower part of the guide channel is in contact with the groove. The upper part of the material guide channel is connected to the outside. Through its structural design, this vertical mill can effectively ensure the normal discharge of ground materials.

Description

technical field [0001] The present invention relates to the field of construction machinery, more specifically, to a vertical mill. Background technique [0002] The mill is the key equipment for crushing the material after it is crushed. The mill can be widely used in cement, silicate products, new building materials, refractory materials, chemical fertilizers, non-ferrous metal beneficiation, glass ceramics and other production industries, and can perform dry or wet grinding of various ores and other grindable materials , therefore, mills have been widely used in various industries. Existing mills generally include vertical mills or horizontal mills, among which vertical mills are popular among users because of their small footprint. [0003] A vertical mill generally includes a feeding mechanism, a grinding mechanism, a discharging mechanism, and a driving mechanism. Among them, the grinding mechanism is the main mechanism of the vertical mill, and the design of the gri...

AI Technical Summary

Problems solved by technology

In order to ensure that the final grinding particle size of the material meets the specified requirements, the conventional vertical mill is generally designed with a screen at the discharge mechanism, and the material that does not meet the specified particle size is intercepted above the screen to continue grinding until it meets the specified particle size. Large and small materials can fall through the fine holes of the screen to be collected and used. In actual operation, when the vertical mill is used, its inner cavity is often filled with various materials of different thicknesses. At the same time, the materials are often mixed with grinding materials. The media balls, and the materials and grinding media balls tend to accumulate and squeeze on the screen due to gravity, so it is easy to cause the screen to be blocked, which greatly affects the normal discharge of materials

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