Internal circulation fluidized bed garbage incineration method having melt sticking dechlorination function

A technology of waste incineration and fluidized bed, which is applied in the field of waste incineration and internal circulating fluidized bed waste incineration with viscous melting and dechlorination. It can solve the problems of large and complex systems, increased investment costs and operational difficulties, and achieve simple system , avoid the effect of system, high reliability

Inactive Publication Date: 2006-08-23
SHANGHAI JIAOTONG UNIV
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Problems solved by technology

This patent is a waste incineration technology of great practical value. However, in order to achieve graded treatment, the patent adopts the form of circulating fluidized bed, sets up a double material leg structure, and adds a dechlorination adsorption bed. The system is large and complex, and the garbage needs Positive pressure feeding, which greatly increases the investment cost and operation difficulty

Method used

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  • Internal circulation fluidized bed garbage incineration method having melt sticking dechlorination function

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Embodiment Construction

[0011] like figure 1 Shown, the embodiment of the inventive method is provided below in conjunction with accompanying drawing:

[0012] The device used in the embodiment includes: a furnace 1, an inclined non-uniform air distribution plate 2, a low-speed primary air chamber 3, a high-speed primary air chamber 4, a riser 5, a waste fuel feed port 6, a dechlorination agent feed port 7, Slag outlet 8, secondary air inlet 9, sorting air inlet 10, pyrolysis zone 11, combustion zone 12, burnout zone 13. The specific implementation process is as follows:

[0013] (1) The inner circulating fluidized bed with non-uniform inclined air distribution is adopted, and the inner circulating fluidized bed furnace 1 is divided into a pyrolysis zone 11 and a combustion zone 12 . Calcium carbonate added to the fluidized bed from the dechlorination agent feed port 7 is calcined in the upper part of the combustion zone 12, and after calcium oxide is generated, it enters the upper part of the pyro...

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Abstract

The present invention relates to an internal recycling fluidized bed refuse incineration method with viscous melt-phase dechlorination. Said method includes the following main steps: adopting non-uniformly air-distributing internal recycling fluidized bed, dividing internal recycling fluidized bed furnace cavity into pyrolysis zone and combustion zone, making pyrolysis of refuse, making low-temperature dechlorination, adding secondary air and making incineration, finally discharging slag.

Description

technical field [0001] The invention relates to a garbage incineration method, in particular to an internal circulating fluidized bed garbage incineration method with viscous melting dechlorination, which is used in the field of environmental protection. Background technique [0002] At present, the disposal of garbage mainly includes landfill, composting and incineration. Due to the presence of a large amount of organic components and some harmful bacteria in garbage, incineration is not only one of the safest and most effective reduction techniques, but also can obtain energy and is widely used. Among them, fluidized bed incineration has high combustion efficiency and low pollutant (NO X , SO X and dioxins) are easy to control and have good combustion adaptability, making them the main incineration method for waste disposal. However, these waste incineration technologies also have some problems, such as the high-temperature corrosion of the heating surface caused by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G5/30F23G5/027F23G5/44F23J1/00
Inventor 章明川范浩杰田凤国周月桂范卫东
Owner SHANGHAI JIAOTONG UNIV
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