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Low nitrogen oxide biomass boiler with variable furnace arch structure

A low nitrogen oxide and biomass boiler technology, applied in the field of environmental protection and new energy, can solve the problems of wasting energy, polluting the environment, high volatile content, etc., and achieve the effect of improving the mixing degree, good burnout degree and low pollution emission

Inactive Publication Date: 2004-04-14
SHANGHAI JIAO TONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

Therefore, this type of furnace cannot adapt to the characteristics of high moisture content of biomass, difficulty in igniting, high volatile content and low energy density. In the process of burning biomass, other fuels such as coal or oil need to be mixed, which pollutes the environment and wastes energy.

Method used

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  • Low nitrogen oxide biomass boiler with variable furnace arch structure
  • Low nitrogen oxide biomass boiler with variable furnace arch structure
  • Low nitrogen oxide biomass boiler with variable furnace arch structure

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Embodiment Construction

[0016] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] The variable furnace arch structure low nitrogen oxide biomass boiler structure of the present invention is as follows figure 1 As shown, it mainly includes the front section air chamber 6, the rear section air chamber 7, the reciprocating fire grate 5, the composite arch formed by the front arch 2, the rear arch 8 and the upper arch 1, and the section wind nozzle 9. The front section air chamber 6 and the rear section air chamber 7 are arranged at the bottom of the boiler to realize segmented air distribution, and the reciprocating fire grate 5 is arranged above the front section air chamber 6 and the rear section air chamber 7, and the reciprocating fire grate 5 adopts a conventional structure. The reciprocating fire grate 5 is a hearth made of refractory bricks, and the fuel delivery hinge 4 installed on the hearth wall on one side o...

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Abstract

The present invention relates to a low-nitrogen oxide biomass boiler with variable furnace arch structure, including front and rear zoned-air chambers, reciprocating grate, combined arch formed from front arch, rear arch and upper arch and zoned-air nozzles. The bottom portion of the boiler is equipped with front zone air chamber and rear zone air chamber to implement zoned-air distribution, and the reciprocating grate is arranged over the front and rear zound-air chambers, and in the interior of furnace cavity wall between upper arch and rear arch air inlaid several zoned-air nozzles whose inlets are connected with main air channel. Said boiler can extensively utilize biomass fuel, and can obtain good combustion effect.

Description

Technical field: [0001] The invention relates to a low-nitrogen oxide biomass boiler with a variable furnace arch structure, which is applied to biomass-fired industrial boilers and relates to the fields of environmental protection, new energy and the like. Background technique: [0002] Biomass energy as a renewable energy has been paid more and more attention. The existing biomass-fired equipment is basically designed based on the prototype of coal-fired bed-fired boilers. There are only front and rear arches, which cannot be adjusted and changed. There are various forms of fire grate, and there is no measure to reduce nitrogen oxides (NOx). Therefore, this type of furnace cannot adapt to the characteristics of high moisture content of biomass, difficulty in igniting, high volatile content and low energy density. In the process of burning biomass, other fuels such as coal or oil need to be mixed, which pollutes the environment and wastes energy. According to the character...

Claims

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Application Information

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IPC IPC(8): F23G7/00F23M3/12
Inventor 罗永浩陆方
Owner SHANGHAI JIAO TONG UNIV
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