A coal-fired boiler flue gas scr dry denitrification device

A technology for coal-fired boilers and flue gas, applied in separation methods, gas treatment, chemical instruments and methods, etc., can solve the problems of low denitrification efficiency of denitrification devices, achieve the effects of increasing contact, facilitating oxidation and reduction, and improving denitrification efficiency

Active Publication Date: 2022-06-24
杭州航民小城热电有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In selective catalytic reduction, ammonia gas is mostly used to oxidize and reduce nitrogen oxides, supplemented by a catalyst for catalysis, but the denitrification efficiency of the denitrification device currently used in selective catalytic reduction is low

Method used

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  • A coal-fired boiler flue gas scr dry denitrification device
  • A coal-fired boiler flue gas scr dry denitrification device
  • A coal-fired boiler flue gas scr dry denitrification device

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Embodiment Construction

[0042] The present application will be further described in detail below with reference to the accompanying drawings.

[0043] The embodiment of the present application discloses a SCR dry denitration device for flue gas of a coal-fired boiler.

[0044] refer to figure 1 The denitration device includes a tank 11 , a rotating shaft 12 rotatably connected in the tank 11 , blades 13 arranged on the rotating shaft 12 , a driving device 14 arranged on the tank 11 , and a catalyst distributed in the tank 11 . The tank body 11 is provided with a flue gas inlet 111 and a flue gas outlet 113 for the entry and exit of the flue gas, and the tank body 11 is also provided with an oxidizing gas inlet 112 for the entry of the oxidizing gas, as well as an outlet for degassing and water droplets. Water drop vent 114 . The catalyst is evenly distributed on the inner wall of the tank 11 and on the surface of the blades. After the oxidizing gas and flue gas are introduced into the tank 11, the ...

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Abstract

This application relates to a coal-fired boiler flue gas SCR dry denitrification device, flue gas denitrification equipment, including a tank body, a rotating shaft connected to the tank body, blades arranged on the rotating shaft, a driving device arranged on the tank body and a catalyst The tank body is provided with a flue gas inlet, an oxidizing gas inlet, a flue gas outlet and a water drop outlet; the driving device is connected to the rotating shaft; the catalyst is distributed on the inner wall of the tank and on the blades, and the inner A baffle is provided on the inner wall of the tank; the baffle is close to the diversion port. The application improves the denitrification efficiency of the denitrification device in the selective catalytic reduction.

Description

technical field [0001] The present application relates to flue gas denitrification equipment, in particular to a flue gas SCR dry denitration device of a coal-fired boiler. Background technique [0002] Coal-fired boilers refer to coal burned as fuel. After the heat of coal is converted, steam is generated or turned into hot water. Coal-fired boilers are an important equipment in thermal power generation. In the process of generating electricity from coal-fired boilers, a large amount of flue gas will be generated. The flue gas usually contains a large amount of atmospheric pollutants, such as sulfur oxides and nitrogen oxides. The traditional flue gas treatment mainly deals with sulfur oxides. In recent years, with the increase of people's awareness of nitrogen oxides and the gradual enhancement of environmental protection awareness, people have gradually realized that nitrogen oxides will pollute the ozone layer, and people have begun to pay attention to the treatment of n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01D53/56
CPCB01D53/8625B01D2258/0283
Inventor 邵惠芳沈利翔孙元龙汪国军
Owner 杭州航民小城热电有限公司
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