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A city waste pyrolysis and gasification coupled coal-fired power generation system

A technology of pyrolysis gasification and coal-fired power stations, which is applied in the direction of machines/engines, mechanical equipment, special forms of dry distillation, etc., can solve the problems of flue gas purification, etc., to ensure safety, reduce system investment, maximize economic benefits and society benefit effect

Active Publication Date: 2021-07-09
SHANGHAI POWER EQUIP RES INST
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Problems solved by technology

[0005] The purpose of the invention is to solve the problem of flue gas purification in the process of garbage incineration

Method used

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  • A city waste pyrolysis and gasification coupled coal-fired power generation system

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Embodiment Construction

[0019] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0020] to combine figure 1 , the working process of a municipal waste pyrolysis gasification coupled coal-fired power station power generation system provided by the present invention is:

[0021] The high-temperature and high-pressure main steam from the boiler 1 drives the steam turbine 2 to rotate, and drives the generator 3 to generate electricity. The flue gas generated in the boiler 1 is discharged from the chimney 6 af...

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Abstract

The invention discloses an urban garbage pyrolysis gasification coupled coal-fired power station power generation system, including a boiler, which drives a generator to generate electricity through a steam turbine, and is characterized in that it also includes a garbage low-temperature pyrolysis system and a garbage drying system. The invention provides a power generation system coupled with pyrolysis and gasification of municipal solid waste, which uses a low-temperature pyrolysis system to perform low-temperature pyrolysis on municipal solid waste, and can volatilize and remove HCl in municipal solid waste. Reduce the generation of dioxin from the source, and at the same time avoid the high-temperature corrosion of the heating surface of the coal-fired boiler caused by the HCl produced in the process of municipal solid waste incineration, and ensure the safety of the heating surface of the large-scale coal-fired unit.

Description

technical field [0001] The invention relates to a system for coupling garbage treatment with a large coal-fired unit, and belongs to the technical field of garbage treatment systems. Background technique [0002] At present, there are three main technologies for municipal solid waste treatment: incineration, landfill and composting, among which waste incineration technology is currently the main treatment method for municipal solid waste. The existing waste incineration adopts direct incineration, which has problems such as low utilization efficiency and serious environmental pollution. With the continuous improvement of environmental protection requirements at home and abroad, how to strengthen the control of secondary pollution is particularly important. Therefore, garbage gasification as a clean garbage utilization technology is an important direction for the clean and efficient utilization of garbage. [0003] my country is a country where coal is the main energy source...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/00F01D15/10
CPCC10B53/00F01D15/10
Inventor 张涛朱一飞陶丽蒋晓锋刘明勇吕为智黄辉武
Owner SHANGHAI POWER EQUIP RES INST
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