Self-locking lining board device of horizontal roller mill

Abstract

The invention provides a self-locking lining board device of a horizontal roller mill. The self-locking lining board device of the horizontal roller mill comprises a fixed check ring, a plugging block, a self-locking lining board (1) and a self-locking lining board (2). The external circular arc surface of the fixed check ring is rigidly connected together with an internal wall of a barrel of the horizontal roller mill; and the wedged plugging block is arranged between each self-locking lining board and the fixed check ring. The self-locking lining board (1) and the self-locking lining board (2) are engaged mutually through respective structures per se to realize radial locking; and the self-locking boards are tightly stuffed up and fixed in an axial direction by the wedged plugging block and the fixed check ring. The disadvantage that the overall performance of the device is damaged by a countersunk bolt hole which is arranged in the lining board in the traditional design is overcome; powder grinding efficiency of the device is increased; the overhaul period is prolonged greatly; and the safe operation of the device is realized.

Description

technical field [0001] The invention relates to a horizontal roller mill, in particular to a self-locking liner device for a horizontal roller mill. Background technique [0002] At present, the liners of the horizontal roller mills on the market are all connected and fixed with the cylinder by high-strength bolts. This design has the following disadvantages: [0003] 1. Countersunk head bolt holes are set on the lining plate. During operation, the countersunk holes cannot be completely filled due to the tail of the bolts, and an overly thick material layer is formed at the unfilled part, where the materials cannot be fully squeezed and crushed, which reduces the grinding efficiency of the system. At the same time, the exposed bolt tails at the counterbore are severely worn, which greatly shortens the maintenance cycle; [0004] 2. Due to the threaded holes on the inner wall of the cylinder, the overall structural performance of the cylinder is damaged; [0005] 3. During ...

AI Technical Summary

Problems solved by technology

[0004] 2. Due to the threaded holes on the inner wall of the cylinder, the overall structural performance of the cylinder is damaged;

[0005] 3. During the working process, the pressure applied by the pressure roller to the material bed repeatedly acts on the lining plate and connecting bolts through the material layer, which will inevitably cause plastic deformation of the lining plate and bolts, and increase the difficulty of replacing the lining plate and bolts. In most cases, only Use destructive replacement, sometimes even damage the mill barrel

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