Desulfurization and dust removal purification device for circulatory flue gas of dry quenching pre-storage section

A technology of circulating flue gas and purification equipment, applied in coke ovens, coke cooling, chemical instruments and methods, etc., can solve the problem of less development of CDQ pre-storage section, and achieve stable and normal production, simple desulfurization system, The effect of convenient operation and maintenance

Pending Publication Date: 2019-02-12
鞍钢集团工程技术有限公司
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Problems solved by technology

At present, the purification treatment of circulating flue gas in the CDQ pre-storage section is rarely carried out in the domestic coking industry

Method used

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  • Desulfurization and dust removal purification device for circulatory flue gas of dry quenching pre-storage section
  • Desulfurization and dust removal purification device for circulatory flue gas of dry quenching pre-storage section
  • Desulfurization and dust removal purification device for circulatory flue gas of dry quenching pre-storage section

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings, but it should be pointed out that the implementation of the present invention is not limited to the following embodiments.

[0031] See figure 1 A CDQ pre-storage section circulating flue gas desulfurization and dust removal purification device includes a coke oven flue gas desulfurization and denitrification system and a CDQ pre-storage section circulating flue gas dust removal purification and dispersal system. Coke oven flue gas desulfurization and denitrification system includes coke oven flue gas pipeline 18, desulfurization agent preparation and injection device 10, desulfurization reaction flue 11, bag filter 12, SCR denitrification reactor 13, coke oven booster fan 14, coke Furnace chimney 15 and coke oven flue gas pipeline 18 are connected in turn with desulfurization reaction flue 11, bag filter 12, SCR denitrification reactor 13, coke oven booster fan 14, co...

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Abstract

The invention relates to a desulfurization and dust removal purification device for circulatory flue gas of a dry quenching pre-storage section. The device comprises a coke oven flue gas desulfurization and denitrification system and a dry quenching pre-storage section circulatory flue gas dust removal purification and diffusion system; the coke oven flue gas desulfurization and denitrification system comprises a coke oven flue gas pipeline, a desulfurizing agent preparing and jetting device body, a desulfurization reaction flue, a bag type dust collector, an SCR denitrification reactor, a coke oven booster fan and a coke oven chimney; the desulfurization reaction flue, the bag type dust collector, the SCR denitrification reactor, the coke oven booster fan and the coke oven chimney are sequentially connected to the coke oven flue gas pipeline; and the desulfurization reaction flue is connected to the desulfurizing agent preparing and jetting device body. The device has the advantages that the desulfurization efficiency is greater than 99%, and the SO2 concentration after desulfurization treatment is less than or equal to 30 mg / Nm<3>; and the desulfurization system is a full-dry system, no waste water is generated, and the maintenance is convenient.

Description

technical field [0001] The invention relates to a desulfurization and dust removal purification device for circulating flue gas in a coke pre-storage section of CDQ. Background technique [0002] In order to prevent and control pollution, the state has stepped up efforts to control pollution in the coking industry, and the circulating flue gas in the CDQ pre-storage section also needs to be purified and discharged after reaching the standard. At present, the purification treatment of circulating flue gas in the CDQ pre-storage section is seldom carried out in the domestic coking industry. [0003] CDQ coke pre-storage section circulating flue gas has the advantages of low flue gas temperature, small flue gas volume, SO 2 Concentration and high dust concentration. Since the CDQ production must maintain a stable pressure, and at the same time, the circulating flue gas in the CDQ pre-storage section should be released in time to ensure safety in case of an accident, so while ...

Claims

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Application Information

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IPC IPC(8): C10B39/02B01D53/75B01D53/56B01D53/50
CPCB01D53/50B01D53/56B01D53/75C10B39/02
Inventor 张庆文常治铁刘莉郭普庆周航李修梅张鹏李腾渊刘立刚
Owner 鞍钢集团工程技术有限公司
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