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Feeding inlet structure for biomass energy fuel boiler

A biomass energy and fuel import technology, applied in the direction of fuel supply, incinerator, combustion method, etc., can solve the problems of high cost of the whole system, difficult to achieve comprehensive utilization of ash and slag, and achieve the effect of uniform distribution

Inactive Publication Date: 2007-04-11
SHANGHAI INDAL BOILER RES INST
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AI Technical Summary

Problems solved by technology

[0003] One is to adopt the form of circulating fluidized bed to co-fire biomass fuel and coal, the proportion is about 20%, and it is difficult to realize the comprehensive utilization of ash;
[0004] The other is to use the water-cooled reciprocating grate layer combustion method, the cost of the whole system is high

Method used

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  • Feeding inlet structure for biomass energy fuel boiler
  • Feeding inlet structure for biomass energy fuel boiler
  • Feeding inlet structure for biomass energy fuel boiler

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Embodiment Construction

[0019] The gist of the invention is: (1) using wind force to send fuel into the furnace; (2) through adjustment, the fuel can be distributed more uniformly in the width direction of the fire grate; (3) cooling the feed inlet.

[0020] As shown in Figure 1(a), the compressed biomass fuel (straw) crushed into flakes, granules or powders is fed into the furnace of the boiler through the structure of the feed port of the present invention, and it is arranged in the furnace of the boiler. The front wall 1 of the furnace includes an upper part, a lower part and an adjustment mechanism. The adjustment mechanism is used to control the angle at which the fuel enters the furnace.

[0021] The upper part is an inclined fuel inlet structure, which includes a fuel inlet pipe 2 arranged at a predetermined angle with the furnace front wall 1 and a protruding part 3 that expands outwards outside the lower side of the fuel inlet pipe 2 .

[0022] The size of the inlet of the fuel inlet pipe 2...

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Abstract

The feed inlet structure for biomass fuel boiler includes one upper inclined fuel feeding structure comprising one fuel feeding pipe in certain angle to the front hearth wall and one outwards widening part below the fuel feeding pipe; one lower secondary air pipe structure comprising one secondary air pipe and several secondary air nozzles inserted into the outwards widening part and fixed to the secondary air pipe; and one regulating mechanism comprising one cooling air pipe, one regulating baffle and one regulator to control the rotation of the baffle. The feed inlet structure feeds fuel into the boiler homogeneously, cools the feed inlet and realizes the efficient clean burning of the biomass fuel.

Description

technical field [0001] The invention relates to a biomass fuel-burning boiler, in particular to a feed inlet structure of a biomass fuel boiler. Background technique [0002] At present, the development and application of biomass energy has attracted widespread attention. There are two main types of combustion technologies for biomass fuel: [0003] One is to adopt the form of circulating fluidized bed to co-fire biomass fuel and coal, the proportion is about 20%, and it is difficult to realize the comprehensive utilization of ash; [0004] The other is to adopt the water-cooled reciprocating grate layer combustion method, and the cost of the whole system is high. [0005] In order to overcome the above defects, the applicant disclosed a biomass fuel boiler in the patent application number 200610029424.6 and the title of the invention is "a biomass fuel boiler and its combustion method", but how to optimize the structure of the feed port in the boiler , making it helpful t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K3/02F23G5/44F23L13/02
Inventor 白兆兴曹建峰陈红娟吴晓云吴元琦苏薇琳
Owner SHANGHAI INDAL BOILER RES INST
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