Protection device for screw shaft of tower mill

Abstract

The invention discloses a protection device for a screw shaft of a tower mill. The protection device comprises a side protection part and an end protection part; the side protection part comprises a spiral protection plate, and the spiral protection plate is fixedly arranged outside the screw shaft of the tower mill; the end protection part comprises a circular protection plate, and the circular protection plate is fixedly arranged at the end portion of one end of the screw shaft of the tower mill; a plurality of arc-shaped plates are connected to form the side protection part to protect the side wall of the screw shaft of the tower mill, and the arc-shaped plates can be fixed to the outer side wall of the screw shaft of the tower mill through matched arrangement of arc-shaped pieces, longitudinal pieces, arc-shaped gaskets and a plurality of bolts; and the circular protection plate can form the end protection part to protect the end face of the screw shaft of the tower mill, and the circular protection plate can be fixed to the end of the screw shaft of the tower mill through matched arrangement of through holes, bolts and threaded blind holes. The protection device can provide a protection effect on the existing screw shaft of the tower mill, damage caused by collision and friction due to direct contact between the screw shaft and stirred materials is prevented, the service life of the screw shaft is prolonged, and the service life of the tower mill is prolonged.

Description

technical field [0001] The invention relates to the technical field of tower mills, and specifically relates to a protection device for a spiral shaft of a tower mill. Background technique [0002] The tower mill is mainly composed of the main motor, reducer, transmission system, cylinder, inspection door, spiral agitator, protective lining and so on. As a high-efficiency crushing equipment, the tower mill has the following comprehensive advantages in comparison: relying on the strong extrusion, grinding and internal classification of the pulp in the cylinder, the tower mill greatly reduces the grinding energy consumption and Product granularity. Most of the existing tower mills only set protective linings on the inner wall of the cylinder and the inspection door to increase the anti-friction performance of the inner wall of the cylinder and the inspection door, thereby increasing the service life of the tower mill. The contact of the medium is also easy to receive the fri...

AI Technical Summary

Problems solved by technology

Most of the existing tower mills only set protective linings on the inner wall of the cylinder and the inspection door to increase the anti-friction performance of the inner wall of the cylinder and the inspection door, thereby increasing the service life of the tower mill. The contact of the medium is also easy to receive the friction of the medium. If the tower mill is used for a long time, the screw shaft will be damaged by friction, resulting in a lower service life of the screw shaft.

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