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Garbage flue gas waste heat recovery system capable of reducing dioxin emission at low cost

A flue gas waste heat and recovery system technology, applied in the direction of reducing greenhouse gases, indirect heat exchangers, heat exchange equipment, etc., can solve problems such as easy production of a large amount of nitrogen oxides, damage to the ecological environment, human health hazards, etc., to achieve control management Effects of dew condensation on the wall, optimization of the combustion environment, and prevention of corrosion of the heat exchange wall

Pending Publication Date: 2020-03-24
XI AN JIAOTONG UNIV
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Problems solved by technology

However, most domestic waste has complex components, and the combustion chamber is prone to produce a large amount of harmful gases such as nitrogen oxides and dioxins, which will cause harm to human health and damage the ecological environment.

Method used

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  • Garbage flue gas waste heat recovery system capable of reducing dioxin emission at low cost

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Embodiment Construction

[0024] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", "end", "side" etc. is based on the Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0025] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connecti...

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Abstract

The invention discloses a garbage flue gas waste heat recovery system capable of reducing dioxin emission at low cost. One end of a spiral conveyer is connected with a limestone feed port, the other end is connected with a pyrolysis gasifier through a garbage feed port, and the pyrolysis gasifier is successively connected with a two-section water cooling wall, a cyclone separator and a dividing wall type quench cooler through a secondary combustion chamber. In the invention, tar generation in a pyrolysis process can be controlled, fly ash bonding can be prevented, dioxin in a discharged flue gas can be reduced, corrosion of a heat exchange wall surface can be prevented, heat recovery can be performed, operation cost can be reduced, and a combustion environment can be optimized.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery, and in particular relates to a garbage flue gas waste heat recovery system for low-cost dioxin emission reduction. Background technique [0002] With the development of social economy, the output of domestic waste is increasing day by day, how to deal with it has become a global problem. Waste incineration has gradually become the main method of domestic waste disposal, because it can reduce the amount and volume of waste in the fastest and most effective way. However, most domestic waste has complex components, and the combustion chamber is prone to produce a large amount of harmful gases such as nitrogen oxides and dioxins, which will cause harm to human health and damage the ecological environment. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a waste heat recovery system for garbage flue gas with low cost to reduce ...

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Application Information

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IPC IPC(8): F23G5/44F23G5/027F23G5/16F23G5/50F28D7/08F28D7/16F23J15/06F28F19/00F28F1/12
CPCF23G5/444F23G5/0276F23G5/16F23G5/50F28D7/082F28D7/16F23J15/06F28F19/00F28F1/12Y02E20/30
Inventor 王树众赵军王涛赵婷
Owner XI AN JIAOTONG UNIV
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