Device and method for denitration of carbon electrode open-type baking furnace combustion zone

A roasting furnace and open technology, which is applied in the field of carbon electrode roasting production, can solve the problems of restricting denitration treatment, difficult to control temperature fluctuation, etc., and achieve the effects of high risk, simple installation and stable furnace temperature.

Pending Publication Date: 2019-01-15
BEIJING INSPECT TECH
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Problems solved by technology

[0011] 3. Due to the narrow section of the flue (furnace), it is difficult to control the temperature fluctuation after adding the denitrification agent
The above characteristics restrict the denitrification treatment in the flame area, resulting in a blank method and device for denitrification in the combustion area of ​​the carbon electrode open roaster

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  • Device and method for denitration of carbon electrode open-type baking furnace combustion zone
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  • Device and method for denitration of carbon electrode open-type baking furnace combustion zone

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Embodiment Construction

[0046] The following will further explain the present invention in conjunction with the accompanying drawings, which are only used for explaining the present invention rather than limiting it.

[0047] The denitration agent referred to in the present invention is a special product for carbon electrode open roasting furnaces.

[0048] See figure 1 , The denitrification device provided by the present invention includes: a denitrification agent silo 2, a feeding device 3, a compressed air conditioning station 4, an online flue gas monitoring device and a spray gun.

[0049] The denitration agent silo 2 is connected to a precision feeding device 3, and the feeding device 3 is connected to a spray gun 9 through a pipeline, and the spray gun 9 is inserted into an open roasting furnace. The spray gun should be inserted into a suitable position in the open roasting furnace, and the suitable position is not a fixed position, which should be adjusted according to the change of the dyn...

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Abstract

The invention discloses a device and method for denitration of a carbon electrode open-type baking furnace combustion zone. The device consists of a denitration agent bin, a feeding unit, a compressedair conditioning station, an on-line flue gas monitoring apparatus and a spray gun. The denitration agent bin is connected to the accurate feeding unit, the feeding unit is connected to the spray gunthrough a pipeline, the spray nozzle of the spray gun is arranged in a flame path of the open-type baking furnace, and the compressed air conditioning station is connected to the feeding unit througha pipeline. The invention also discloses a use method of the denitration agent in the combustion zone. The method includes: using compressed air for positive or negative pressure conveying of the denitration agent to the spray gun, with the spray position of the spray gun being in a flame path position at 700-1100DEG C in the flame moving direction. Compared with the existing denitration methodsand devices, the device and method provided by the invention have better denitration effect and system stability in the carbon electrode baking field.

Description

technical field [0001] The invention relates to the field of carbon electrode roasting production, in particular to the purification treatment of flue gas in a roasting system suitable for carbon electrode roasting production, that is, a device and method for denitrification in a combustion zone of an open roasting furnace for carbon electrodes. Background technique [0002] In the carbon electrode roasting production process, an open roaster is basically used, and a large amount of nitrogen oxides will be produced during the roasting production process, and nitrogen oxides have a great damage to the environment. It is not only one of the main substances that form acid rain, but also An important substance in the formation of photochemical smog in the atmosphere and an important factor in ozone depletion. [0003] In the existing denitrification technology, the method adopted is to collect the flue gas in the main flue, and use the ammonia diluent to carry out wet denitrific...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/56B01D53/79
CPCB01D53/56B01D53/79B01D2258/0283
Inventor 陈洪吕福泉于明超曹功武方炯
Owner BEIJING INSPECT TECH
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