Preheater cyclone internal cylinder with steel strips made of super-strong heat resistant steel

Abstract

A preheater cyclone inner tube having a ultrastrong-type heat-resistant steel-belt comprises an inner tube body (1) connected to a cyclone fixing seat (8). The inner tube body (1) is formed by a plurality of ceramic hanging pieces (2) and a ceramic connecting plate (3) matching with and connected to each other. Each ceramic hanging piece (2) has a rectangular board structure, at whose left side and right side are disposed with insertion steps (22) in reverse symmetry, respectively. Every two ceramic hanging pieces (2) are inserted side by side and are tightly arranged circumferentially into a tubular body. The upper end of each ceramic hanging piece (2) at the upper part of the tubular body is connected to the fixing seat (8). The vertically or horizontally adjacent ceramic hanging pieces (2) are fixedly connected through the ceramic connecting plate (3). The ceramic hanging piece (2) has a hollow cavity and an ultrastrong-type heat-resistant steel-belt (10) is disposed inside the hollow cavity. The preheater cyclone inner tube has a low processing difficulty, a simple structure, and a low cost, as well as high corrosion resistance against acids and alkalis, a long service life, and a high use safety.

Description

technical field [0001] The invention relates to cement production equipment, in particular to a preheater cyclone inner cylinder and a ceramic hanger with a super-strength heat-resistant steel strip. Background technique [0002] For a long time, the inner tube of the preheater cyclone used in the dry process cement production line at home and abroad is mainly made of nickel-chromium heat-resistant alloy steel. Its outstanding shortcomings exist in two aspects: first, the price of steel is relatively expensive, Tons are usually more than 100,000 yuan, so the cost of producing a preheater cyclone inner tube will reach hundreds of thousands of yuan; second, the practical life is short, and the acid and alkali corrosion resistance of alloy steel is poor. The average life expectancy is only 10-14 months. The stoppage maintenance and replacement of the inner cylinder based on this has seriously affected the production time of the enterprise and caused a burden on the production ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing preheater cyclone heat-resistant steel inner cylinder is assembled with ceramic components, which is difficult to process or has a complex structure, thermal expansion and contraction lead to ceramic fracture, and the heat resistance is not high enough, so that Problems that affect quality and service life, provide a preheater cyclone inner cylinder that is less difficult to process, simple in structure, and can prevent loose connections caused by thermal expansion and contraction, and short service life. It is not only low in cost, but also acid-resistant. Alkali is highly corrosive, which also improves the service life of the inner cylinder

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