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Process of municipal solid waste treatment and utilization system

A technology of municipal solid waste and garbage, applied in gas treatment, steam generation method using heat carrier, petroleum industry, etc., can solve the problems of polluting the surrounding atmospheric environment, difficulty in large-scale promotion, and threat to residents' health

Active Publication Date: 2012-07-25
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] But unfortunately, the concentration of toxic and harmful substances such as dioxin, acid gas and smoke in the flue gas emitted by the existing waste incineration power generation technology far exceeds the standard, seriously polluting the surrounding air environment and threatening the health of local residents. Healthy, so it is difficult to be promoted on a large scale

Method used

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  • Process of municipal solid waste treatment and utilization system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Pile 60t of domestic garbage in the garbage storage subsystem A, the temperature is normal temperature, and the pressure is 0.095MPa. Wherein the volume of the landfill leachate collection container I is 3M 3 . The leachate is transported to the combustion subsystem D through the delivery pump P1, atomized by the nozzle, and then completely combusted. The garbage release gas emitted from the exhaust pipe 13 at the top of the stacking subsystem A is metered through the negative pressure pipe, and after heat exchange with a heat exchanger F1 of the waste heat recovery and utilization subsystem F, it is sent to the combustion subsystem D for complete combustion. combustion. The solid waste is sent to the crushing and screening subsystem B through the automatic lifting conveying device 1 at a flow rate of 3t / h for crushing and screening. A small amount of hard-to-crunch waste such as metal blocks, wires, and plastic films is removed in the screening equipment. The size o...

Embodiment 2

[0051] Garbage stacking system A stores 120t of domestic garbage, its temperature is normal temperature, and its pressure is 0.098MPa. Wherein the solution volume of landfill leachate collection container I is 6M 3 . The leachate is transported to the combustion subsystem D through the delivery pump P1, atomized by the nozzle, and then completely combusted. The garbage release gas emitted from the exhaust pipe 13 at the top of the stacking subsystem A is metered through the negative pressure pipe, and after heat exchange with a heat exchanger F1 of the waste heat recovery and utilization subsystem F, it is sent to the combustion subsystem D for complete combustion. combustion. The solid waste is sent to the crushing and screening subsystem B through the automatic lifting conveying device 1 at a flow rate of 4t / h for crushing and screening. A small amount of difficult-to-crunch waste such as metal blocks, wires, and plastic films is removed in the screening equipment. The si...

Embodiment 3

[0057] Garbage stacking system A stores 240 tons of domestic garbage, its temperature is normal temperature, and its pressure is 0.097MPa. Wherein the solvent of landfill leachate collection container I is 5M 3 . The leachate is transported to the combustion subsystem D through the delivery pump P1, atomized by the nozzle, and then completely combusted. The garbage release gas emitted from the exhaust pipe 13 at the top of the stacking subsystem A is metered through the negative pressure pipe, and after heat exchange with a heat exchanger F1 of the waste heat recovery and utilization subsystem F, it is sent to the combustion subsystem D for complete combustion. combustion. The solid waste is sent to the crushing and screening subsystem B through the automatic lifting conveying device 1 at a flow rate of 5t / h for crushing and screening. A small amount of hard-to-crunch waste such as metal blocks, wires, and plastic films is removed in the screening equipment. The size of the...

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Abstract

Disclosed is process of a municipal solid waste treatment and utilization system. The municipal solid waste treatment and utilization system comprises a stacking subsystem A, a smashing and screening subsystem B, a pyrolysis gasification subsystem C, a combustion subsystem D, a hot electron subsystem E, a waste heat recycling and utilization subsystem F, a flue gas treatment and reutilization subsystem G and a solid slag recycling and reutilization subsystem H. The process of the system has the advantages that waste does not need to be treated in a classification manner, the problems that a large quantity of land is occupied in existing landfill process and various released noxious and harmful greenhouse gases are emitted to the atmosphere during waste decomposition are solved, and the problem that a large quantity of noxious and harmful substances and smoke including dioxin and the like are emitted to the atmosphere in existing waste incineration process or existing pyrolysis gasification process is also solved.

Description

technical field [0001] The invention relates to a new process system for treating and utilizing municipal domestic garbage. Background technique [0002] Municipal solid waste has become a major public hazard in large and medium-sized cities in the world today. In order to solve the problem of proper disposal of municipal solid waste, the municipal government has to use a lot of human, financial and land resources. Nevertheless, with the economic and social development of China and the world, the consumption power of urban residents is constantly increasing, and domestic waste in major cities in emerging economies, especially in emerging economies, is showing a trend of substantial growth. Therefore, how to scientifically deal with municipal solid waste has become an unavoidable common problem. [0003] Taking Beijing, the capital of China, as an example, due to the rapid economic development and the rapid expansion of the urban population, the domestic waste in Beijing is...

Claims

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Application Information

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IPC IPC(8): F23G5/033F23G5/027F23G5/46F23G5/44F22B1/18F24H1/00C10J3/20C10J3/72B01D50/00B01D53/75B01D53/50B01D53/62B01D53/68
CPCB01D53/62F23G5/027B01D2257/40Y02E20/12F23G5/033B01D50/00B01D2258/0291C10B53/00F23G5/006F23G5/16F23G5/444F23G5/46F23G2201/303F23G2201/40F23G2900/70401F23J15/006F23L7/007Y02E20/34Y02P20/129
Inventor 张志炳陈金明熊永生
Owner NANJING UNIV
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