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tfb gasifier with built-in twin bed

A technology of gasification furnace and gasification zone, which is applied in the field of gasification of combustible solid waste (garbage), can solve problems such as adhesion and slag on the inner wall of the furnace, high alkali metal content, and low ash melting point, so as to reduce carbon content, Increase the heating value of vaporized gas and avoid the effect of adhesion

Active Publication Date: 2022-07-12
BEIJING ONE A HI TECH ENERGY TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

The turbulent fluidized bed is a fluidized device, which has certain requirements on the size and uniformity of the feed, and there are usually certain difficulties in slag discharge because it contains a certain amount of non-combustible large particles
In addition, combustible solid waste usually has a high alkali metal content and a low ash melting point, which is easy to adhere to the slag on the inner wall of the furnace

Method used

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  • tfb gasifier with built-in twin bed

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Embodiment Construction

[0017] The specific embodiments and working process of the present invention will be further described below with reference to the accompanying drawings.

[0018] Orientation terms such as upper, lower, left, right, front and rear in this application document are established based on the positional relationship shown in the accompanying drawings. If the drawings are different, the corresponding positional relationship may also change accordingly, so this should not be construed as a limitation on the protection scope.

[0019] like figure 1 As shown, the TFB gasifier with built-in double bed includes a gasification chamber 1 , a feeding device 2 , a separator 3 and a waste heat utilization device 4 .

[0020] The gasification chamber 1 includes a gradually expanding zone, a gasification zone 103 of equal cross-section, a tapering zone 104 and a cooling section 105 of equal cross-section in sequence from bottom to top. The gradually expanding zone includes a turbulent gasific...

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Abstract

The invention discloses a TFB gasifier with a built-in double bed, which comprises a gasification chamber, a feeding device, a separator and a waste heat device. The gasification chamber includes, from bottom to top, a gradually expanding area, a gasification area of ​​equal cross-section, a tapering area and a cooling section of equal cross-section. The diverging zone includes a turbulent gasification zone and a bubbling gasification zone arranged side-by-side and separated by a baffle. The partition height is 0.5~1 m. The feeding device is arranged on one side of the turbulent gasification zone. The lower secondary tuyere is set on one side of the turbulent gasification zone; the middle and secondary tuyere is set in the equal-section gasification zone, and the upper secondary tuyere is set in the tapered zone, and is set on different side walls to inject gas vertically into each other chemical medium. The invention has the advantages of adapting to low calorific value garbage, simple and efficient slag discharge structure, low carbon content in the gasification residue, and avoiding the adhesion of complex fuels in the lower part of the gasification chamber, etc., and graded gasification can adapt to large changes in the composition of garbage .

Description

technical field [0001] The invention relates to a TFB gasifier with a built-in double bed, belonging to the field of combustible solid waste (garbage) gasification. Background technique [0002] Combustible solid waste represented by household waste often affects its combustion stability in the incinerator due to its high moisture content, resulting in insufficient combustion or deflagration, and the evaporation of water into the flue gas increases the moisture content of the flue gas. If it is too high, it is easy to cause corrosion of pipelines and subsequent equipment. The first gasification and then combustion not only makes full use of the moisture in the domestic garbage as a gasification agent to participate in the reaction, improves the reaction stability and reduces the moisture content in the flue gas; To the homogenization effect, the subsequent combustion process is more stable and sufficient. [0003] Due to the complex composition and changeable shape of dome...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/48C10J3/52C10J3/72
CPCC10J3/48C10J3/52C10J3/721C10J2300/0946Y02P20/129
Inventor 胡彦霞齐逍宇张凝
Owner BEIJING ONE A HI TECH ENERGY TECH CO LTD