Multi-channel adjustable pulverized coal burner for rotary kiln

By using a multi-channel adjustable pulverized coal burner, the flame shape and length can be adjusted using a sandwich structure and compensator, which solves the problems of small adjustment range and poor adaptability to high-temperature zones of existing burners, reduces maintenance costs and extends service life.

CN224352979UActive Publication Date: 2026-06-12唐山金沙燃烧热能股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
唐山金沙燃烧热能股份有限公司
Filing Date
2025-06-18
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Existing pulverized coal burners have a small adjustment range and cannot adapt to different pulverized coal properties and operating conditions, resulting in poor adaptability to high-temperature operating conditions and high maintenance costs.

⚗Method used

Design a multi-channel adjustable pulverized coal burner. Through a sandwich structure of direct current air, pulverized coal air, swirl air and central air, combined with a compensator and regulating valve, it can achieve flexible adjustment of flame shape and length, simplifying the structure and reducing maintenance costs.

🎯Benefits of technology

It enables flexible adjustment to different coal powder properties and operating conditions, reduces maintenance costs, extends the service life of the burner head, and can adapt to the operating conditions of various flame lengths and shapes.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model belongs to the technical field of coal powder combustion, a kind of multi-channel adjustable coal powder burner for rotary kiln, the coal powder burner is sequentially sleeved with direct current wind outer pipe, coal powder wind outer pipe, cyclone wind outer pipe, center wind outer pipe, center pipe from outside to inside, and center pipe is located at the center of coal powder burner;Axial flow wind interlayer is formed between direct current wind outer pipe and coal powder wind outer pipe, coal powder wind interlayer is formed between coal powder wind outer pipe and cyclone wind outer pipe, cyclone wind interlayer is formed between cyclone wind outer pipe and center wind outer pipe, and center wind interlayer is formed between center wind outer pipe and center pipe;The inner wall of the front portion of direct current wind outer pipe and the periphery of the front portion of coal powder wind outer pipe are both provided with notched groove with inclined bottom, and the outlet area of axial flow wind interlayer is controlled by controlling the front and back distance of coal powder wind outer pipe.The utility model realizes multi-channel adjustable coal powder multi-channel burner by multi-channel adjustment, fixed cyclone angle and variable nozzle area, and is easy to operate, simple to maintain, low in cost and wide in adjustment range.
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