Cracking ignition device for pulverized coal fired boiler

An ignition device, pulverized coal boiler technology, applied in the direction of combustion ignition, incandescent ignition, combustion method, etc.
CN1804467AInactive Publication Date: 2006-07-19赵龙章
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
赵龙章
Publication Date
2006-07-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a power plant ignition device, especially providing a crack ignition device used in firepower coal boiler. It comprises a crack furnace (2), a feeding system (8) inside the crack furnace (2), a crack medium feeding system (10) and a slag discharge system (11). Wherein, the furnace chamber contains a heating device (9); the crack furnace (2) has a gas output tube; or it can mount a fuel gas feedback heating system (18) on the gas output tube to replace the heating device (9); the another end of fuel gas feedback heating system (18) is through to the furnace chamber of crack furnace (2); the end of output tube has a ignition burning head (4) which is connected to the burner (5) of boiler or directly burn the coal powder inside the furnace chamber. The invention has the advantages that: it has stable property, the cold and hot resistance and long service life; when the boiler is started, it can be used as ignition burner and when in normal burning, it can be used as main burner; and it is compatible with the boiler.
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Description

Technical field:

[0001] The invention relates to an ignition device for a power plant, in particular to a pyrolysis ignition device suitable for use as an ignition device on a pulverized coal boiler for thermal power generation. Background technique:

[0002] my country is a big country of thermal power generation. Most of the ignition and stable combustion of large industrial pulverized coal boilers are realized by burning light oil and heavy oil. In recent years, the price of crude oil has continued to rise, and the fuel oil used for thermal power generation has become more and more restricted; for thermal power plants burning lean coal, more oil is used for ignition, low-load stable combustion, and combustion support. A large amount of fuel consumption, as well as the corresponding costs of fuel purchase, transportation, storage, hardware equipment, etc. have also greatly increased the cost of power generation. Therefore, direct ignition of oil-free or less-oil pulverized...

Claims

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