Lightweight wear-resistant heat-insulating composite brick for rotary kiln and preparation method thereof

By preparing lightweight, wear-resistant, and heat-insulating composite bricks, the problems of unsatisfactory heat insulation and poor wear resistance of composite bricks used in rotary kilns have been solved, achieving efficient heat retention and impact resistance, and extending service life.

CN117570715BActive Publication Date: 2026-08-07JIANGSU SINOFURNANCECOSLIGHT TECH CO LTD
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Patent Information

Application Number
CN202311803088.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-26
Publication Date
2026-08-07
Estimated Expiration
2043-12-26

AI Technical Summary

Technical Problem

Existing composite bricks for rotary kilns have unsatisfactory heat insulation performance, poor wear resistance and thermal shock resistance, and are prone to cracking and falling off, resulting in a reduced service life.

Method used

The design employs lightweight, wear-resistant, and heat-insulating composite bricks, including a heat-insulating base layer, a lightweight refractory layer, and connecting columns. Through specific material composition and process preparation, combined with high-temperature sintering and pressing technology, the wear resistance and heat insulation performance of the bricks are enhanced.

Benefits of technology

It improves the impact resistance of composite bricks, reduces heat loss, extends service life, enhances installation efficiency, and reduces the risk of individual bricks falling off.

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Abstract

The application discloses a light-weight wear-resistant heat-insulating composite brick for a rotary kiln and a preparation method thereof, and belongs to the technical field of composite brick preparation, which comprises a heat-insulating base layer, the lower end of the heat-insulating base layer is fixedly connected with a light-weight refractory layer, the upper and lower outer walls of the heat-insulating base layer are each provided with an arc-shaped groove, a connecting column is arranged between the two heat-insulating base layers in connection, and the connecting column is located in the arc-shaped groove; the preparation method comprises the following steps of S1, raw material mixing; S2, pressing of a brick blank; S3, preparation of the connecting column; and S4, sintering; the heat-insulating base layer of the composite brick has strong heat-insulating performance, can effectively lock the heat of the rotary kiln, reduces heat loss of the rotary kiln, the light-weight refractory layer is light in weight and is not prone to falling off and cracking, and has high wear resistance and fire resistance.
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