Tooth roller and grate of single-tooth roller crusher

Abstract

The invention discloses a tooth roller and a grate of a single-tooth roller crusher for crushing sinter cakes, belonging to the field of initial material processing in metal smelting industry. The invention is characterized in that: the tooth roller is produced by inlaying 5-14 crushing toothed rings in a tooth roller that can be available for inlay, the grate is produced by surfacing a grate basic body or conducting secondary casting to form a layer of wear-resisting alloy, wherein the crushing toothed rings comprises 3-4 hocks which are mutually occluded and arranged together in order, a layer of the wear-resisting alloy is formed by surfacing or carrying out secondary casting on the crown and periphery of the hock, the grate basic body is produced by sealing a cast steel groove-shaped body, a water-stop sheet and a sealing cover by welding, and the crushing toothed rings, tooth roller and grate basic body are all can be prepared into a water cooling structure and a half-water cooling structure. According to the invention, the tooth roller and the grate of the full water cooling single-tooth roller crusher have excellent heat resistance and wear resistance because of large flow area and good cooling effect, the processing technology of the hock, the tooth roller and the grate is simple, the replacement is convenient, the cost of processing and maintenance is reduced, and the hock and the grate has good repairability.

Description

technical field [0001] The invention relates to the field of front-stage raw material processing in the metal smelting industry, and relates to a toothed roller and a grating bar of a single toothed roller crusher for crushing sintered ore cakes. Background technique [0002] In the steel and non-ferrous metal smelting process, sintering is the first process after the raw materials are selected. When the sintered cake with a sintering temperature of 1000 °C enters the upper part of the grate bar of the single-toothed roller crusher, the temperature is generally 700 °C to 850 °C, and the crushing strength is low. More than 20KN / cm2, the toothed roller and grating bar of the single-toothed roller crusher experience high temperature and high-strength impact. It will wear out quickly, and the general life span is only 2-10 months, that is, it must be replaced. [0003] The production and application of the existing single-toothed roller crusher toothed rollers and grate bars in...

AI Technical Summary

Problems solved by technology

[0009] The known water-cooled grate structure is to pre-embed two thick-walled steel pipes in the cast steel grate body. This water-cooled structure is easy to melt and block when casting, the water-passing area is small, and the water-cooling effect is not good.

[0010] The above-mentioned single-toothed roller crusher toothed rollers and grating bars have many shortcomings in processing and maintenance, and are not ideal heat-resistant and wear-resistant parts, which increase production and maintenance costs for users, and sometimes seriously affect production.

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