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Arrangement device for double-layer swirl burn-off air of garbage incinerator

A technology of waste incinerator and burnout air, which is applied in incinerators, combustion methods, combustion types, etc., can solve problems such as affecting the flow structure of flue gas, and achieve simple and easy technical means, improve burnout rate, and increase residence time. Effect

Active Publication Date: 2011-12-07
GUANGZHOU WEIGANG ENVIRONMENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the overburning air is fed into the furnace by high-speed jets. If the leading role of the high-speed jets is fully utilized, it can affect the flue gas flow structure inside the furnace to a certain extent.

Method used

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  • Arrangement device for double-layer swirl burn-off air of garbage incinerator
  • Arrangement device for double-layer swirl burn-off air of garbage incinerator
  • Arrangement device for double-layer swirl burn-off air of garbage incinerator

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Embodiment Construction

[0023] The specific embodiments of the present invention will be described in further detail below, but the embodiments of the present invention are not limited thereto.

[0024] like figure 1 As shown, the waste incinerator double-layer swirl burnout wind arrangement device of the present invention includes a combustion chamber 7 and a furnace chamber 8 of the garbage incinerator, and the furnace chamber 8 includes a front wall 10 and a rear wall 9. 7 and the junction of the furnace 8, that is, the bottom positions of the front wall 10 and the rear wall 9 are arranged with two layers of exhausted air nozzles 1, 4, that is, the front arch 5 and the rear arch 6 of the combustion chamber 7 and the furnace 8 are arranged. junction transition zone.

[0025] The inlets of the above-mentioned exhausted air nozzles of each layer are correspondingly communicated with respective exhausted air ducts 2, and the exhausted air nozzles are communicated with the furnace chamber 8. damper 3...

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Abstract

The invention provides a garbage incinerator double-layer rational flow over-fire air arranging device which comprises a first-layer over-fire air nozzle, a second-layer over-fire air nozzle, an over-fire air pipe and an over-fire air door, wherein the two layers of over-fire air nozzles are arranged on the bottom positions of front and back walls of the furnace hearth, the over-fire air nozzles are horizontally arranged, half of the nozzles are arranged vertical to the furnace hearth and half nozzles are deflected by a designed angle, so that the leading and driving effect of high-speed jet flow can be utilized, flue gas can be impelled to generate spiral ascending air flow, air flow disturbance in the furnace hearth can be strengthened, and flue gas route and residence time of flue gas can be effectively prolonged and full decomposition of harmful gases such as dioxins and the like can be ensured. The application of the over-fire air also aims at distributing air on a basis of classification, improving burn-off rate and reducing the generation amount of NOx. The invention can solve the problems of insufficient flue gas residence time, high fly ash combustible content and low burn-off rate and the like existing in the garbage incinerator which is not installed with the over-fire air device or only adopts vertical furnace wall injection as an over-fire air arrangement mode.

Description

technical field [0001] The invention relates to a waste incineration device, in particular to a double-layer swirling exhaust air arrangement device of a waste incinerator. Background technique [0002] In the past 20 years, the production of urban domestic waste in my country has developed rapidly, and the harmless treatment of waste is a necessary prerequisite for sustainable development of the environment. Waste incineration power generation technology has the characteristics of harmlessness, reduction and resource utilization, and has good environmental and social benefits. It is one of the best choices for comprehensive waste treatment. The Chinese government vigorously promotes the development of waste incineration power generation technology, and waste incineration treatment shows a momentum of rapid growth in my country. Large-scale waste incineration plants have been built or are under preparation in Guangdong, Jiangsu and Zhejiang. [0003] With the development o...

Claims

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Application Information

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IPC IPC(8): F23G5/44
Inventor 马晓茜林海
Owner GUANGZHOU WEIGANG ENVIRONMENT TECH CO LTD
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