System for CDQ pressure control emitted gas desulfurization and dust removal

A technology for desulfurization, dust removal, and pressure regulation. It is used in the separation of dispersed particles, grain treatment, chemical instruments and methods, etc. It can solve the problem of less control work, reduce SO2 and dust emissions, and achieve a simple system and uniform flow field distribution. Effect

Pending Publication Date: 2019-09-27
JIANGSU WISDOM ENG TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

So far, domestic coking enterprises have done little work on the treatment of such gases

Method used

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  • System for CDQ pressure control emitted gas desulfurization and dust removal

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the technical solution of this patent, the patent will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0017] Such as figure 1 As shown, a system for desulfurization and dust removal of CDQ pressure-adjusted vent gas mainly includes a hopper 1, a screw conveyor 2, a baking soda grinder 4, a conveying fan 7, a first-stage dust collector 10, a venturi 15, and a desulfurization reactor 14. Secondary dust collector 16 and induced draft fan 19. After the baking soda raw material (feeding particle size2 CO 3 SO in the vented gas 2 A chemical reaction occurred. The desulfurized diffused gas entrains powdery granular products into the secondary dust collector 16, and the clean diffused gas enters the chimney through the induced draft fan 19 for discharge.

[0018] The whole system can be divided into three parts: baking soda grinding system, desul...

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Abstract

The invention discloses a system for CDQ pressure control emitted gas desulfurization and dust removal, comprising a baking soda hopper, a screw conveyor, a baking soda grinder, a conveying fan, a primary dust remover, a desulfurization reactor, a secondary dust remover and a draught fan. The emitted gas is taken out of an emission port through a pipeline and firstly enters the primary dust remover to remove dust, and the dust-removed emitted gas and the ground baking soda ultrafine powder enter the desulfurization reactor through a Venturi pipe to be uniformly mixed and undergo a chemical reaction in the reactor. The desulfurized flue gas passes through the secondary dust remover and the draught fan and then enters a chimney to be discharged. By the principle of baking soda dry desulfurization and two-stage high-efficiency dust removal, SO2 and dust in the flue gas can be effectively removed to ensure that the treated flue gas meets the latest national special emission limit standard.

Description

technical field [0001] The invention relates to a flue gas treatment system using baking soda dry desulfurization + secondary dust removal, which effectively solves the problem of desulfurization and dust removal of CDQ diffused gas, and belongs to the field of environmental protection for iron and steel metallurgy production. Background technique [0002] In the face of the increasingly severe air pollution situation, the implementation of the new "Environmental Protection Law" has been continuously strengthened, and local standards have been continuously improved. Environmental standards and energy consumption standards have been used to vigorously promote the reduction of production capacity in the coking industry. Whether environmental protection meets the standards has become a factor that determines the survival of enterprises. Necessary conditions, many iron and steel enterprises have implemented or put on the agenda for the treatment of coke oven flue gas. In the pas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/83B01D53/50B01D49/00B02C21/00
CPCB01D49/00B01D53/50B01D53/83B02C21/00
Inventor 李来所陈浩王慧知
Owner JIANGSU WISDOM ENG TECH
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