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Low nitrogen oxide biomass boiler with variable furnace arch structure

A low nitrogen oxide, biomass boiler technology, applied in the field of new energy and environmental protection, can solve the problems of polluting the environment, high volatile content, waste of energy, etc. Effect

Inactive Publication Date: 2005-03-30
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • 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 arch structure low nitrogen oxide biomass boiler structure of the present invention is as figure 1 As shown, it mainly includes a front section air chamber 6, a rear section air chamber 7, a reciprocating grate 5, a combined arch composed of a front arch 2, a rear arch 8 and an upper arch 1, and a segmented air 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. The reciprocating grate 5 is arranged above the front section air chamber 6 and the rear section air chamber 7 and the reciprocating grate 5 adopts a conventional structure. The reciprocating grate 5 is a furnace made of refractory bricks, and a fuel conveying hinge 4 installed on the furnace wall on one side of the reciprocating grate 5 is connected to the fuel sil...

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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-NOx biomass boiler with a variable furnace arch structure, which is applied to a biomass-fired industrial boiler and relates to the fields of environmental protection, new energy and the like. Background technique: [0002] As a kind of renewable energy, biomass energy has received more and more attention. The existing biomass-fired equipment is basically designed based on coal-fired boilers as prototypes. This type of furnace generally uses open air distribution and furnace arches. Only the front and rear arches are not adjustable, the grate is in various forms, and there are no measures to reduce nitrogen oxides (NOx). Therefore, this type of furnace cannot adapt to the characteristics of high moisture content, difficult fire, high volatile content and low energy density of biomass. In the process of burning biomass, it needs to be mixed with other fuels such as coal or oil, which pollutes the environment and wastes energy....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/00F23M3/12
Inventor 罗永浩陆方
Owner SHANGHAI JIAOTONG UNIV
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