Tower mill

Abstract

The invention discloses a tower mill. A technical scheme adopted by the tower mill is that the tower mill comprises a main motor, a speed reducing device, a supporting system, a cylinder, a door, a spiral stirrer and protective lining plates, wherein the main motor is connected with the speed reducing device, the speed reducing device is arranged on the supporting system, the supporting system is a completely-closed structure, a driving shaft is arranged in the supporting system, the upper end of the driving shaft is connected with the speed reducing device, and the lower end of the driving shaft is connected with a screw rod shaft of the spiral stirrer by virtue of a shaft sleeve; the protective lining plates are arranged on the inner walls of the cylinder and the door; the bottom end of a first spiral blade group and the bottom end of a second spiral blade group are connected with a double-head material picking blade which is fixedly arranged on the screw rod shaft; a discharge opening and a feed opening are formed in the cylinder; and the door is movably connected with the cylinder. By adopting the tower mill disclosed by the invention, the grinding efficiency of the tower mill can be significantly improved, the service life of wear-out parts can be prolonged, the loss of a grinding medium can be reduced, the assembly and use of the tower mill can be facilitated, the mechanical efficiency of the tower mill can be improved, and the manufacturing cost of the tower mill can be reduced.

Description

technical field [0001] The invention relates to a tower mill with a new structure used for grinding various materials in ore dressing and other industries. Background technique [0002] The tower mill appeared in Japan in the 1950s. Compared with the horizontal ball mill, its size is slightly smaller, but its structure is more complicated, so it is more difficult to manufacture. The problems in its use are: the feeding process of the blades at the bottom of the spiral is highly random, and the probability of collision with the grinding medium is high, which is often accompanied by the jamming of the grinding medium, which not only causes a large amount of power consumption, but also consumes the grinding medium and The blades of the spiral agitator also make the blades at the bottom of the spiral agitator wear quickly; since the cylinder is closed, it is necessary to discharge the grinding media and materials in the cylinder during maintenance, and expose the internal parts ...

AI Technical Summary

Problems solved by technology

[0002] The tower mill appeared in Japan in the 1950s. Compared with the horizontal ball mill, its size is slightly smaller, but its structure is more complicated, so it is more difficult to manufacture

The problems in its use are: the feeding process of the blades at the bottom of the spiral is highly random, and the probability of collision with the grinding medium is high, which is often accompanied by the jamming of the grinding medium, which not only causes a large amount of power consumption, but also consumes the grinding medium and The blades of the spiral agitator also make the blades at the bottom of the spiral agitator wear quickly; since the cylinder is closed, it is necessary to discharge the grinding media and materials in the cylinder during maintenance, and expose the internal parts of the cylinder as a whole, and sufficient maintenance space is required. It makes maintenance difficult; the tower mill is composed of several parts as a whole. In order to compensate the manufacturing and installation errors of the rotating parts, it is necessary to set up a coupling to compensate, so the overall size and weight of the equipment are increased, and the mechanical power consumption is also increased.

Since the connection parts of the main components of the tower mill are far away from the ground, it is also difficult to install and adjust this way.

In addition, when the machine is shut down with material, the grinding medium and material will settle and condense seriously, making it difficult to restart the equipment.

Therefore, the application range of this kind of tower mill is small, and it only occupies a small market range in the field of fine grinding, which is difficult for horizontal ball mills to handle.

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