Abrasion-resistant grate bar

Abstract

The invention relates to a comb-tooth grate bar of a comb-tooth sieve plate used for sieving a material. The grate bar consists of a substrate made of a macromolecular elastic material, an abrasion-resistant composite layer, a fixed steel plate vulcanized in the root of the comb-tooth grate bar and the like, wherein the abrasion-resistant composite layer is on the upper part of a comb-tooth part,is adhered to the substrate and is provided with a big end up taper hole; and the hole is filled with a substrate material and is connected with the substrate to form a whole. The abrasion-resistant composite layer is made of ceramics or a hard alloy abrasion-resistant material; the inside of the macromolecular elastic material on the lower part of the abrasion-resistant composite layer is vulcanized with a spring steel wire; and one end of the spring steel wire is 2 to 20 mm away from the edge of the abrasion-resistant grate bar. The lateral surface of the abrasion-resistant composite layer has a big end up obliqueness, and a part of the lower part is coated by the macromolecular elastic material. The comb-tooth sieve plate manufactured by the abrasion-resistant comb-tooth grate bar provided by the invention is good in abrasion resistance and difficult in causing a falling-off problem of the composite layer, so the service life of the sieve plate can be prolonged greatly, and meanwhile a sieve hole of the sieve plate is difficult to be blocked. Thus, the abrasion-resistant grate bar has good popularization and application prospects.

Description

technical field [0001] The invention relates to a wear-resistant sieve bar of a comb sieve plate used for material sieving. Background technique [0002] The sieve bar is made of polymer materials such as polyurethane and wear-resistant rubber. Because of its good elasticity, reasonable structure and certain wear resistance, it has been widely used in actual production. However, this material also has a relatively obvious disadvantage, that is, when the large amount of material is passed or when screening sharp and hard materials such as coke and slag, the wear resistance is not high and the service life is short, which limits the use of this sieve plate in this field. It can be widely used under various industrial and mining conditions. [0003] In order to solve the above problems, some technical solutions use to increase the thickness of the comb bar. Generally speaking, the service life of the sieve plate can basically increase proportionally to the increase in thicknes...

AI Technical Summary

Problems solved by technology

However, this solution increases the weight of the sieve bar and increases the production cost of the sieve plate. At the same time, when the thickness of the sieve bar increases, it will have a certain impact on the structure of the sieve plate. The blockage in the process affects the normal screening

Especially due to the wear of the side of the sieve hole during the screening process, in the case of high screening accuracy, the grinding of the sieve hole will cause the material to run coarse during the screening process, causing the sieve plate to fail prematurely

In this case, increasing the thickness will not achieve the purpose of prolonging the life, and the feasibility of this technical solution will be greatly reduced.

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