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New technique for using low-temperature carbonization in coordination with high-temperature disintegration to treat urban household garbage

A municipal solid waste, high-temperature technology, applied in the direction of combined combustion mitigation, combustion type, combustion method, etc., can solve the problems of complex components, secondary pollution, etc., and achieve the effect of low construction cost and operation cost, and high energy utilization rate

Inactive Publication Date: 2014-01-01
吴庆元
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The most important way to reduce the amount of domestic waste is incineration. However, due to the mixed state of domestic waste in my country and the complex composition of domestic waste, if the smoke generated after incineration is not effectively controlled, it will cause serious secondary pollution.

Method used

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  • New technique for using low-temperature carbonization in coordination with high-temperature disintegration to treat urban household garbage
  • New technique for using low-temperature carbonization in coordination with high-temperature disintegration to treat urban household garbage
  • New technique for using low-temperature carbonization in coordination with high-temperature disintegration to treat urban household garbage

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Embodiment Construction

[0026] The specific embodiment is described below in conjunction with accompanying drawing:

[0027] 1. Garbage sorting:

[0028] Such as figure 2 As shown, after domestic waste is crushed, the length, width, and height are all less than 80mm, and the broken waste is lifted to an appropriate height by a belt conveyor, and the magnetic metal (mainly iron) in the waste is removed by magnetic separation. Then through the 5-stage winnowing, the garbage is separated according to different proportions, so that they enter their respective storage bins.

[0029] 2. Garbage dry distillation pyrolysis gasification:

[0030] Such as image 3 As shown, through the belt conveyor, the light-weight substances in the sorted domestic waste, such as plastics, foams and other synthetic organic substances, are transported to the nuclear magnetic retort pyrolysis gasifier, at a temperature of 150-250°C Dry distillation operation. The organic matter that can produce dioxin in the garbage is ...

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Abstract

The invention discloses a household garbage treating device, in particular to a household garbage treating device and method capable of preventing dioxin completely. The method includes: automatic sorting the garbage to remove inorganic objects incapable of pyrolysis and separate common organic objects such plastics which may contain dioxin, allowing the common organic objects to enter a carbonization gasifier so as to be disintegrated and gasified under an oxygen-free and low-temperature (< / =250 DEG C) condition, using the generated gas for low-temperature power generation by controlling combustion temperature to be not larger than 250 DEG C, and treating the residue clean organic objects in high-temperature disintegration circulating oxygen supply bin. According to the technical scheme, the novel household garbage treating device structurally comprises an automatic garbage sorting machine, a belt conveyor, a carbonization furnace, a low-temperature power generation unit, the high-temperature disintegration circulating oxygen supply bin, a high-temperature power generation unit, and an automatic control system.

Description

technical field [0001] The invention relates to a treatment device for municipal domestic garbage, in particular to a treatment device and method for eliminating dioxin generation. Background technique [0002] At present, the harmless, reduction, and resource treatment of municipal solid waste has become the focus of attention of the country and the public. The most important way to reduce the amount of domestic waste is incineration. However, due to the mixed state of domestic waste in my country and the complex composition of domestic waste, if the smoke generated after incineration is not effectively controlled, it will cause serious secondary pollution. . At present, the most harmful substance in flue gas is dioxin. The full name of Dioxin is: polychlorinated dibenzo-p-dioxin (PCDDs for short) and polychlorinated dibenzofuran (PCDFs for short), which are special organic compounds with strong toxicity. (Thousands of times more toxic than arsenic). Dioxin is a repres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/027F23G5/033
CPCY02E20/12
Inventor 吴庆元刘刚张斌
Owner 吴庆元