Vertical coaxial anticentripetal grinder

Abstract

The invention discloses an upright type coaxial centrifugal mill, which belongs to equipment for milling solid materials, and in particular relates to an upright type coaxial centrifugal mill for milling minerals into powders. The upright type coaxial centrifugal mill mainly consists of a cylinder body (1), a stander (2), a driving mechanism (3), a guiding mechanism (5), a feeding mechanism (4), and a discharging mechanism (6). The mill is provided with a fixed ore medium flow guiding mechanism (5) in an uprightly rotating cylinder body (1); and the function of the guiding mechanism is to destroy the centrifugal movements of the materials and medium flow, change the moving track, and generate strong impact force, shear force and grinding force so as to achieve the effect of highly-efficient ore milling. The mill can be used for rough milling, fine milling and ultrafine milling, and the mill can also be used for medium milling and autogenous milling. With the increasing of the rotating speed of the mill, the production capacity of unit volume of the mill is greatly improved.

Description

technical field [0001] The invention relates to a vertical coaxial centrifugal mill, which belongs to solid material crushing and processing equipment, in particular to a vertical coaxial centrifugal mill for crushing minerals into powder, and is suitable for grinding various solid materials. Background technique [0002] Grinding equipment can be divided into two categories according to its use. One is the grinding machine used in metal mines and non-metal mines to grind ore, mainly including ball mills, rod mills, autogenous mills, pebble mills, etc. The other is fine grinding equipment for non-metallic products and chemical products, mainly including tower mills, stirring mills, Raymond mills, centrifugal mills, vibration mills and colloid mills. The main features of the former are large processing capacity, low grinding unit cost and slow mill speed, while the latter are characterized by small processing capacity, finer products, high grinding unit cost and fast mill spe...

AI Technical Summary

Problems solved by technology

Stirring mills are mainly used for ultra-fine crushing of finer-grained materials, and are widely used in the chemical and building materials industries, but due to their relatively small production capacity, their application in mining and metallurgical industries is limited.

[0006] 2. It is difficult to enlarge the equipment

Because the media and materials in the barrel will tightly block the agitator when it is shut down, it is very difficult to start it again, and a large power input is required. A 5600-liter agitator mill needs to be equipped with a 600kw motor, which limits the Due to the large-scale development of equipment, the maximum diameter of this type of mill in China is only about 1.5 meters.

[0007] 3. The agitator wears a lot

The stirring mill relies on the high-speed rotation of the agitator to agitate the material and the medium to grind the material. There will be severe collision and friction between the agitator and the medium and between the agitator and the material, which will cause the agitator to wear quickly. increased production costs

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