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Method and equipment for pyrolysis and gasification treatment of solid wastes

A technology for processing equipment and solid waste, which is applied in the field of solid waste treatment by pyrolysis and gasification technology, which can solve tail gas pollution, unsatisfactory environmental protection and resource recycling, failure to solve environmental problems and comprehensive utilization of resources, etc. question

Inactive Publication Date: 2003-05-21
TIANJIN UNIV
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Problems solved by technology

The original treatment method is dumping and landfill, which is the least ideal from the perspective of environmental protection and resource recycling; the subsequent rise is sanitary landfill treatment technology, which still does not solve environmental problems and comprehensive utilization of resources.
Composting technology eliminates garbage through the action of microorganisms, but it has strict requirements on the composition of garbage, and non-food chain garbage components cannot be processed
The tail gas pollution and dioxin problems of waste incineration technology are very obvious, which is unacceptable to the environment; these traditional methods cannot be applied to hazardous waste, such as medical and sanitary waste

Method used

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  • Method and equipment for pyrolysis and gasification treatment of solid wastes
  • Method and equipment for pyrolysis and gasification treatment of solid wastes

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Embodiment Construction

[0032] Pyrolysis technology is an ideal waste treatment method. It does not need to classify waste. The high-temperature treatment process can kill germs, no pollutants are discharged during the treatment process, and useful resources can be recycled, which overcomes the defects in the above traditional treatment methods. .

[0033] The present invention will be further described below in conjunction with embodiment.

[0034] The solid waste enters the main furnace 2 from the feeding device 1 connected to the upper end of the side wall of the main furnace 2 and fills the space formed by the mechanical grate 10 and the main furnace 2 . The spiral stirrer 3 at the center of the top of the main furnace 2 can move up and down by means of a hydraulic device, and forms a uniform material layer through the action of the spiral stirrer 3 that can move up and down, so that the pyrolysis reaction of the material can occur fully and evenly.

[0035] The middle and lower part of the main...

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Abstract

The present invention discloses an equipment for treating solid wastes by using pyrolytic decomposition technology and its method. Said equipment mainly includes main body reaction furnace and gas reaction furnace connected with said main body reaction furnace, and makes the solid wastes undergo the processes of drying, pyrolytic decompositino and gasification so as to obtain fuel gas and residual 5-10% of solid discharged material which can be used as flowers and plant cultivation soil. Said invention has no need of sorting all the solid wastes or pretreating, its lowest pyrolysis temp. is above 400 deg.C, and said pyrolysis process is made in anoxybiotic condition, so that it does not produce dioxaen.

Description

technical field [0001] The invention relates to a method and equipment for treating solid waste, more specifically, to a method and equipment for treating solid waste by using pyrolysis gasification technology. Background technique [0002] The progress of civilization and the development of industry have met many of the needs of human life, but also produced a lot of garbage that has been used and discarded by humans. Solid waste includes municipal solid waste, medical and sanitary waste, industrial waste and other waste items with combustible value. The original treatment method is dumping and landfill, which is the least ideal from the perspective of environmental protection and resource recycling; the subsequent rise is the sanitary landfill treatment technology, which still does not solve environmental problems and comprehensive utilization of resources. Composting technology eliminates garbage through the action of microorganisms, but it has stri...

Claims

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Application Information

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IPC IPC(8): B09B3/00C02F11/10
CPCY02W10/40
Inventor 张于峰
Owner TIANJIN UNIV
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