Radial gradient two air-controlled cyclone coal dust combustor

A pulverized coal burner and air conditioning technology are applied in burners, burners for burning powder fuel, combustion methods, etc., to achieve the effects of reducing emissions, enhancing heat and mass transfer strength, and improving ignition stability
CN1477330AInactive Publication Date: 2004-02-25XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2004-02-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses a radial gradation double air regulation cyclone coal powder burner, including nozzle with burner, internal first air channel, external first air channel, internal second air channel, external second air channel, internal tooth profile combustion-stabilizing ring, external tooth profile combustion-stabilizing ring, double-cone flare, stopper coal powder concentrator and central pipe cyclone coal powder burner. It utilizes two air channels to implement radial gradation combustion.
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Description

1. Technical field

[0001] The invention belongs to the technical field of combustion, and relates to a pulverized coal burner, and further relates to a radial thick-thin double-air swirl pulverized coal burner with double-toothed rings and double-cone flares. 2. Background technology

[0002] At present, the pulverized coal swirl burners that are widely used are mainly double-adjustable air swirl burners. Among them, some burners use the radial thick-thin combustion method, and some burners use external tooth-shaped stable combustion at the primary air nozzle. ring. The dual-air-regulating burners currently in operation are usually used to burn coals that are easy to ignite (such as bituminous coal), while the combustion stability of coals that are difficult to ignite (such as anthracite and lean coal) is poor. At the same time, most of the swirl burners need to be strengthened in terms of controllability and regulation of pulverized coal concentration in rich-lean combusti...

Claims

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