Dual-purpose burner for coke powder and coke oven gas

The coke oven gas and coke powder dual-purpose burner, which uses a multi-stage air duct structure and graded air distribution, solves the problems of resource waste and high nitrogen oxide emissions in coking plants, and achieves efficient and low-cost combustion of coke oven gas and coke powder with low nitrogen emissions.

CN122774622APending Publication Date: 2026-09-18唐山金沙燃烧热能股份有限公司
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Patent Information

Application Number
CN202610924458.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-25
Publication Date
2026-09-18

AI Technical Summary

Technical Problem

Existing burners cannot effectively utilize the coke oven gas and coke powder produced by the coking plant itself, resulting in resource waste and high nitrogen oxide emissions. In particular, when the calorific value fluctuates or the supply is insufficient, fossil fuels need to be purchased from outside. Furthermore, the combustion of coke powder can easily lead to excessively high flame center temperatures.

Method used

A dual-purpose burner for coke oven gas and coke powder was designed. It adopts a multi-stage air duct structure, including a primary air swirl channel, a secondary air direct channel, a tertiary air swirl channel and a quaternary air direct channel. The rotating airflow is formed by swirl blades and swirl vanes. Combined with air staged distribution and flue gas recirculation, it realizes uniform mixing and low-temperature combustion of coke oven gas and coke powder.

Benefits of technology

It enables the internal recycling of coke oven gas and coke powder, reduces fuel costs, significantly reduces nitrogen oxide emissions, ensures complete fuel combustion, and controls flame temperature within a suitable range.

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Abstract

The present application relates to the technical field of burner, and discloses a coke powder and coke oven gas dual-purpose burner, which comprises a coke powder jet flow channel arranged in the center of the burner, and a coke powder combustion head arranged at the outlet end of the coke powder jet flow channel; a primary air rotational flow channel is arranged outside the coke powder jet flow channel, and a plurality of rotational flow leaves are fixed to the inner side wall of the primary air rotational flow channel; a secondary air straight flow channel is arranged outside the primary air rotational flow channel; a coke oven gas cavity is arranged outside the secondary air straight flow channel, the burner uses coke oven gas and coke powder as dual fuel, the coke oven gas is introduced into the coke oven gas cavity through a coke oven gas inlet, and is sprayed out for combustion after being evenly distributed through a first coke oven gas channel and a second coke oven gas channel; the coke powder is sprayed out from the center of the coke powder jet flow channel, both of them are self-produced materials in the coking process, internal recycling is realized, natural gas or diesel oil needs not to be purchased from outside, fuel cost is greatly reduced, and the dependence on external fossil energy of the traditional burner is solved.
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