Municipal solid waste extreme decrement and highly resourceful treatment process and municipal solid waste extreme decrement and highly resourceful treatment device

A technology for municipal solid waste and its treatment process, which is applied in the field of extreme reduction and highly resourceful treatment process and equipment of municipal solid waste, and can solve the problems of secondary pollution, thermal efficiency, secondary pollution, etc.

Active Publication Date: 2014-09-10
深圳龙澄高科技环保股份有限公司
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Problems solved by technology

[0007] In order to overcome the secondary pollution caused by the direct incineration of municipal solid waste for power generation and the secondary pollution and low thermal efficiency caused by the use of coal gasifier type pyrolysis gasification equipment to treat waste, the present invention discloses an extremely low-efficiency municipal solid waste Quantified and highly resourced processes and equipment

Method used

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  • Municipal solid waste extreme decrement and highly resourceful treatment process and municipal solid waste extreme decrement and highly resourceful treatment device
  • Municipal solid waste extreme decrement and highly resourceful treatment process and municipal solid waste extreme decrement and highly resourceful treatment device
  • Municipal solid waste extreme decrement and highly resourceful treatment process and municipal solid waste extreme decrement and highly resourceful treatment device

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Embodiment

[0031] The municipal solid waste collected by the municipal waste transfer station is put into the waste compactor by the loading equipment (e.g., grab bucket) for ultra-high pressure pressing, and is sorted into dry components with a moisture content below 25% and waste mainly from biomass at one time Wet components composed of material slurry.

[0032] The wet components enter the low-temperature wet heat carbonization reactor, the temperature is controlled at 200°C, and the residence time in the reactor is 0.5 hours. After the reaction is completed, the material is discharged into the heat exchanger through the pressure relief valve on the top of the reactor, and after heat exchange with the wet component input into the heat exchanger, it is cooled to below 100°C, and then enters the chamber filter press for dehydration to complete solid-liquid separation, thereby Biochar with a moisture content of less than 30% and carbonized liquid containing N, P and other components are...

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Abstract

The invention discloses a municipal solid waste extreme decrement and highly resourceful treatment process and a municipal solid waste extreme decrement and highly resourceful treatment device. In the treatment process, the municipal solid waste is classified into dry component with very low water content and wet component mainly formed by biomass waste pulp once under the ultrahigh pressure squeezing action of an ultrahigh pressure squeezer. The dry component is efficiently converted into pyrolysis gas with very high calorific value, a small amount of carbon residue and inert ash in a high-temperature pyrolysis gasification system which is specially designed. The pyrolysis gas can be also taken as fuel to be used in other industrial processes besides being taken as energy of the pyrolysis process. The wet component is converted into marsh gas or biochar with very high calorific value by virtue of a biogas fermentation system or a low-temperature dampness-heat carbonization system which is specially designed. Most of the rest biochar can be used for providing energy for other industrial production processes except that a small part of the biochar is taken as energy of the low-temperature dampness-heat carbonization process.

Description

technical field [0001] The invention relates to the technical field of municipal solid waste treatment, in particular to a treatment process and equipment for extremely reducing and highly resourceful municipal solid waste. Background technique [0002] With the acceleration of urbanization, urban domestic waste is increasing day by day. There are two main methods for the existing domestic waste disposal: one is to use sanitary landfill; the other is to send the waste to a waste incineration plant for incineration to generate electricity. The sanitary landfill of domestic waste not only occupies a large amount of land, but also has a short service life of the landfill, and the leachate and odorous gas emitted by the landfill cause serious pollution to the environment. The direct incineration method can realize volume reduction and resource utilization of municipal solid waste, but its fatal flaw is the SO produced during the incineration process. X , NO X , HCl, heavy met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
Inventor 马辉文张涉陆晓春黎莉郭提童绚霞王克虹黄中林王金生陈思伍谢春阳徐家麟
Owner 深圳龙澄高科技环保股份有限公司
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