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Drawing and inserting type heat-resistant and wear-resistant ceramic preheater inner tube

A technology of wear-resistant ceramics and preheaters, which can be used in preheating costs, lighting and heating equipment, furnaces, etc. It can solve the problems of poor high temperature thermal shock resistance and easy fracture, poor high temperature strength and falling off of ordinary refractory materials, and achieve high temperature Impact resistance is not easy to break, reduces equipment maintenance costs, and has good impact resistance at high temperature

Inactive Publication Date: 2015-03-18
SHAANXI SHENGHUIYUAN INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the early patents of the inner cylinder of the preheater are mostly made of heat-resistant alloy steel hanging pieces. Due to oxidation, corrosion and erosion at high temperatures, the heat-resistant steel hanging pieces are deformed, peeled off, and even fall off. The service life is about 1 year. , the service life is short, and the heat-resistant steel hanging pieces are expensive, coupled with frequent kiln shutdown and replacement, which affects the cement production and greatly increases the cement production cost and labor intensity of workers
In order to solve the problem of longevity of the inner cylinder, there are related patented technologies in China that use non-metallic preheater inner cylinders. The non-metallic materials are ordinary ceramics and ordinary refractory materials. Poor thermal shock resistance, easy to break, falling bricks or even falling off as a whole, ordinary refractory materials have technical problems such as poor high-temperature strength, and more importantly, in the prior art, when replacing the inner cylinder parts of the preheater, the kiln must be stopped for replacement, which seriously affects production stability and continuity

Method used

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  • Drawing and inserting type heat-resistant and wear-resistant ceramic preheater inner tube
  • Drawing and inserting type heat-resistant and wear-resistant ceramic preheater inner tube
  • Drawing and inserting type heat-resistant and wear-resistant ceramic preheater inner tube

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Embodiment Construction

[0017] In order to further illustrate the present invention, further describe below in conjunction with accompanying drawing:

[0018] Such as figure 1 , figure 2 and image 3 As shown, a plug-in heat-resistant and wear-resistant ceramic preheater inner cylinder of the present invention selects a low-cost wear-resistant structural ceramic material, processes the structural ceramic material into a U-shaped groove plate, and then the U-shaped groove One end of the plate is placed outside the working room as the installation end, and the other end is inserted into the preheater through the preset jack, and each U-shaped groove plate is reversely connected to form a cylinder. During the production process, when a U-shaped groove plate is accidentally damaged, it can be easily pulled out without stopping the kiln, and then inserted and replaced with a new part of the same material. The invention has a simple structure and does not affect the continuity and stability of producti...

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Abstract

The invention discloses a drawing and inserting type heat-resistant and wear-resistant ceramic preheater inner tube applied to front preheaters C4 and C5 of a cement rotary kiln. According to the inner tube, U-type ceramic trough plates are connected and assembled in a buckled manner; the service life is long, tightness performance is fine, the high decomposition efficiency of preheaters can be guaranteed, and quick-wear parts can be replaced without stopping the kiln.

Description

technical field [0001] The invention relates to an inner cylinder of a pull-in type heat-resistant and wear-resistant ceramic preheater. Background technique [0002] At present, the early patents of the inner cylinder of the preheater are mostly made of heat-resistant alloy steel hanging pieces. Due to oxidation, corrosion and erosion at high temperatures, the heat-resistant steel hanging pieces are deformed, peeled off, and even fall off. The service life is about 1 year. , the service life is short, and at the same time, the heat-resistant steel hanging piece is expensive, coupled with frequent kiln shutdown and replacement, it affects the cement production, and also greatly increases the cement production cost and the labor intensity of the workers. In order to solve the problem of longevity of the inner cylinder, there are related patented technologies in China that use non-metallic preheater inner cylinders. The non-metallic materials are ordinary ceramics and ordinary...

Claims

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Application Information

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IPC IPC(8): F27D13/00
Inventor 曲维龙
Owner SHAANXI SHENGHUIYUAN INFORMATION SCI & TECH
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