Low-nitrogen fluidized bed combustor for biomass

A fluidized bed and biomass technology, which is applied to fluidized bed combustion equipment, fuels burned in a molten state, combustion methods, etc., can solve the problems of unreasonable combustion chamber structure, unreasonable fire distribution and insufficient combustion, etc. , to reduce the production of nitrogen oxides, control emissions, and enhance the effect of combustion temperature

Inactive Publication Date: 2015-11-25
广州迪森热能设备有限公司
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Problems solved by technology

[0007] In order to solve the disadvantages of the existing boiler burner such as unreasonable structure of the combustion chamber, low combustion efficiency, insufficient combustion, need for external denitrification components, difficulty in ash removal, and unreasonable fire distribution and air distribution, the present invention provides a Fluidized bed function, effective ash removal, low nitrogen fluidized bed burner with high combustion efficiency

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  • Low-nitrogen fluidized bed combustor for biomass
  • Low-nitrogen fluidized bed combustor for biomass
  • Low-nitrogen fluidized bed combustor for biomass

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Embodiment Construction

[0025] Such as figure 1 and figure 2 As shown, the biomass low-nitrogen fluidized bed burner includes a furnace body 6, a feed pipe 3, an air distribution plate 2, an equal pressure air box 17, an air cap 2, a partition wall 7, a material stopper 8 and a flame nozzle 9.

[0026] The cross-section of the inner cavity of the furnace body 6 has a C-shaped structure. The inner cavity of the furnace body 6 is provided with a partition wall 7, which divides the inner cavity into a combustion chamber 4 and a flue 5, and the upper part of the combustion chamber 4 communicates with the inlet of the flue 5. The combustion chamber 4 is used as the combustion area, which is in the form of a cylinder. The bottom of the combustion chamber 4 is set as the air distribution plate 2. The air distribution plate is hexagonal. Install the hood 2. Below the air distribution plate 2 is an equal pressure air box 17, the air distribution hole communicates with the equal pressure air box, and the e...

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Abstract

The invention discloses a low-nitrogen fluidized bed combustor for biomass. A feed opening and a flame nozzle are formed in the side wall of an inner chamber of a furnace body, and an air distribution plate and a partition wall are arranged at the bottom of the inner chamber. The inner chamber is divided into a combustion chamber and a flue through the partition wall, the combustion chamber is used as a combustion area, and the flue is used for settling solid particles. The upper part of the combustion chamber is communicated with a flue inlet, a through hole is formed in the bottom of the partition wall, and the combustion chamber is communicated with the flue. According to the inner chamber structure with the air distribution plate, the flue and the through hole, when flue gas passes through the flue, solid bodies in the flue gas settles under the action of dead weight, and precipitates are circulated to the combustion chamber for combusting utilization through the through hole. The combustion mode of a circulating fluidized bed is realized, the combustion efficiency is high, and the effective effects of sufficient combustion without coking and effective settling without ash deposition are realized.

Description

technical field [0001] The invention belongs to the technical field of combustion equipment, in particular to a fluidized bed combustion machine which burns biomass fuel and adopts low-nitrogen combustion. Background technique [0002] At present, coal-fired or oil-fired burners are generally used to provide heat for boilers. With the wide application of biomass fuel, the application of biomass fuel combustion equipment has been highly valued. [0003] As we all know, due to the high volatile content of biomass fuel and easy slagging, it brings great challenges to the structural design of biomass burners. There are problems that need to be improved urgently in the existing biomass burner, including: [0004] 1. From the perspective of combustion method, because biomass fuel is cheaper than oil and gas fuel, similar biomass burners fail to solve the problems of coking and emissions. Existing biomass fuel burners adopt slow direct combustion technology, such as CN202056861U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23C10/10F23C10/18F23C10/20
CPCF23C10/10F23C10/18F23C10/20
Inventor 罗志明廖德亮黄茅张朝阳谭融婷
Owner 广州迪森热能设备有限公司
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