Automatic ash removal structure for combustor of rotary cement kiln

By installing an automatic ash-removing structure with air cannons at the top of the cement rotary kiln burner, the problem of centerline sinking caused by burner ash accumulation was solved, ensuring normal operation of the burner and improving clinker quality and production efficiency.

CN224316762UActive Publication Date: 2026-06-02安徽芜湖海螺建筑安装工程有限责任公司
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Patent Information

Application Number
CN202521331211.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-27
Publication Date
2026-06-02
Estimated Expiration
2035-06-27

AI Technical Summary

Technical Problem

The existing cement rotary kiln burners suffer from centerline sinking due to ash accumulation during operation, which affects the clinker calcination quality and accelerates burner end face burn-off. Conventional ash cleaning methods are prone to damaging the protective layer, increasing the risk of kiln shutdown and economic losses.

Method used

An automatic ash removal pipe structure with air cannons is installed on the top of the cement rotary kiln burner. This structure includes a main ash removal pipe, a nozzle body, and an air cannon gas transmission system. The air cannons clean up the accumulated ash and prevent damage to the protective layer.

Benefits of technology

This technology enables timely cleaning of accumulated ash without damaging the protective layer, ensuring normal burner operation, improving clinker quality, reducing kiln shutdown risks, and enhancing production economic efficiency.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to an automatic ash removal structure of a rotary cement kiln burner, which comprises a rotary cement kiln burner structure, and an air cannon automatic ash removal pipe fitting structure is arranged at the top of the rotary cement kiln burner structure. The automatic ash removal pipe fitting structure of the air cannon comprises an ash removal main pipe which is arranged between a barrel structure at the top of a combustor structure of a rotary cement kiln and an anchoring part, the ash removal nozzle body structures are uniformly distributed at the upper part of the ash removal main pipe; the air cannon gas transmission pipeline is connected to the rear end of the ash removal main pipe; and the air cannon generating device is connected with the air cannon gas transmission pipeline. During operation, the structure can clean accumulated dust on the top in time, reduce sinking of a center line of the burner caused by accumulated dust in a severe environment of the burner, improve burning quality of a clinker section, reduce damage of a protective layer of the burner caused by manual cleaning, ensure normal operation of the burner, ensure stable production of an in-kiln section burning system, and improve production economic benefits.
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