A flue gas secondary combustion device
A secondary combustion and flue gas technology, applied in the direction of gas fuel burners, burners, combustion types, etc., can solve the problems of insufficient combustion and excessive combustion of flue gas
Active Publication Date: 2022-07-05
HEFEI UNIV OF TECH
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Problems solved by technology
[0004] The purpose of the present invention is to provide a flue gas secondary combustion device to solve the problem of insufficient or excessive combustion of flue gas during pyrolysis treatment of solid waste, so as to improve the effect of flue gas treatment and save the cost of combustion-supporting fuel supply
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0019] This embodiment further illustrates the present invention by taking the pyrolysis flue gas treatment of waste enameled wires as an example.
[0020] like figure 1 As shown, this embodiment includes a flue gas mixing chamber 03 and a secondary combustion furnace 12, wherein:
[0021] The flue gas mixing chamber 03 is communicated with a first pipe throat 02 , a waste gas inlet 05 of the replacement chamber at the feed port, a waste gas inlet 06 of the replacement chamber at the outlet, and an air / hot air inlet 11 . The waste gas inlet 05 of the feed port replacement chamber is communicated with the feed port replacement chamber of the pyrolysis furnace, and the waste gas inlet 06 of the discharge port replacement chamber is communicated with the discharge port replacement chamber of the pyrolysis furnace, and they respectively connect the feed po...
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The invention discloses a flue gas secondary combustion device, comprising a flue gas mixing chamber and a secondary combustion furnace. The flue gas mixing chamber is connected with a first pipe throat, a waste gas inlet of a feed port replacement chamber, and a discharge port replacement chamber waste gas. Valves are installed at the inlet, air / hot air inlet, waste gas inlet of the replacement chamber at the feed port, waste gas inlet of the replacement chamber at the discharge outlet, and air / hot air inlet respectively; the secondary combustion furnace is divided into a combustion area and a gas collection area by a porous partition. There are two parts. Combustion-supporting fuel is passed into the combustion area of the secondary combustion furnace, and the flue gas mixing chamber is communicated with the combustion area of the secondary combustion furnace through the throat of the second pipeline. The throat of the second pipeline and the gas collection of the secondary combustion furnace Temperature sensors are installed in each area. The invention can avoid the problem of insufficient combustion caused by the short residence time of flue gas in the combustion furnace, and can effectively save combustion-supporting fuel days.
Description
technical field [0001] The invention relates to the field of flue gas treatment equipment, in particular to a flue gas secondary combustion device. Background technique [0002] Combustion or pyrolysis of solid waste will produce a large amount of toxic and harmful fumes, which must be treated to meet the emission requirements. It is a common treatment method to carry out secondary combustion and chilling of flue gas, and then discharge it after terminal treatment. However, the treatment process parameters are different, and the flue gas treatment effect and energy consumption are also different, especially the combustion of flue gas in the secondary combustion chamber. Temperature, residence time, flue gas composition and its uniformity have great influence on flue gas treatment effect and energy consumption. [0003] Taking waste enameled wire pyrolysis flue gas treatment as an example, the existing waste enameled wire pyrolysis flue gas treatment process method is: the p...
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IPC IPC(8): F23G7/06F23D14/02F23D14/46F23D14/62
CPCF23G7/06F23D14/02F23D14/46F23D14/62Y02E20/34
Inventor 黄斌汤瑞王雪建许智马运杰潘巧生
Owner HEFEI UNIV OF TECH