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Coke oven coaling flue gas purification system and process

A technology of flue gas purification system and flue gas purification process, which is applied in coking ovens, gas treatment, petroleum industry, etc., can solve the problems of poor purification effect of pollutants such as sulfides and poor operation stability, and achieve long-term Steady-state operation and operation, reducing secondary pollution emissions, and achieving the effect of reducing emissions

Pending Publication Date: 2020-09-18
CERI ENERGY & AIR PROTECTION TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a coke oven coal charging flue gas purification system and process, through the coke oven coal charging flue gas to take flue gas dust removal, flue gas fan pressurization, heat exchange and cooling, cooling and cooling and adsorption purification treatment, effectively Remove sulfide and other pollutants in the coke oven coal charging flue gas, and the purified flue gas is discharged into the atmosphere through the chimney, and the desulfurization adsorbent is regenerated to ensure that the system can circulate and run stably, and the regenerated gas The follow-up treatment of sulfide and other substances in the system can better solve the problems of poor system operation stability and poor purification effect of sulfide and other pollutants, and can be used for the production and purification of coke oven coal charging flue gas

Method used

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  • Coke oven coaling flue gas purification system and process
  • Coke oven coaling flue gas purification system and process
  • Coke oven coaling flue gas purification system and process

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Effect test

Embodiment 1

[0047] Such as figure 1As shown, the present invention provides a coke oven coal charging flue gas purification system, which includes a coal charging dust removal device 2, a flue gas cooler 4, an adsorption purification device 5, a regeneration heater 8 and Sulfur recovery device 9, wherein: the air inlet of coal charging and dedusting device 2 is used to connect with the coal charging hole of coke oven 1, the gas outlet of coal charging and dedusting device 2 is connected with the air inlet of flue gas cooler 4, and the flue gas The air outlet of cooler 4 is connected with the air inlet of adsorption purification device 5, the air return port of adsorption purification device 5 is connected with the air inlet of regeneration heater 8, and the air outlet of regeneration heater 8 is connected with the air inlet of adsorption purification device 5. The first gas outlet of the adsorption purification device 5 is connected with the air inlet of the sulfur recovery device 9 .

...

Embodiment 2

[0062] Such as Figure 5 As shown, the present invention provides a coke oven coal charging flue gas purification process, the coke oven coal charging flue gas purification process adopts the above-mentioned coke oven coal charging flue gas purification system, and the coke oven coal charging flue gas purification process includes the following step:

[0063] Step S1: The coke oven coal charging flue gas escapes from the coal charging hole of the coke oven 1, and forms the first air flow, the first air flow is discharged in bursts, the flow rate of the first air flow and the dust and sulfide in the first air flow The concentration of pollutants fluctuates greatly during the coal charging process and the coal charging intermittent process.

[0064] Step S2: The first air flow enters into the coal charging and dust removal device 2. The coal charging and dust removal device 2 is generally composed of a coke oven coal charging ground dust removal station and supporting equipment...

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Abstract

The invention relates to a coke oven coaling flue gas purification system and process. The coke oven coaling flue gas purification system comprises a coaling dust removal device, a flue gas cooler, anadsorption purification device, a regeneration heater and a sulfur recovery device, wherein a gas inlet of the coaling dust removal device is connected with a coaling hole of a coke oven; a gas outlet of the coaling dust removal device is connected with a gas inlet of the flue gas cooler, a gas outlet of the flue gas cooler is connected with a gas inlet of the adsorption purification device, a gas return port of the adsorption purification device is connected with a gas inlet of the regeneration heater, a gas outlet of the regeneration heater is connected with the gas inlet of the adsorptionpurification device, and a first gas outlet of the adsorption purification device is connected with a gas inlet of the sulfur recovery device. The technical problems that in the coke oven coaling process, the system operation stability is poor, and the purification effect of pollutants such as sulfide is poor are solved.

Description

technical field [0001] The invention relates to the field of flue gas treatment, in particular to a coke oven coal charging flue gas purification system and process. Background technique [0002] With the rapid development of the steel industry, the consumption of coking coal has increased significantly. A large amount of sulfur dioxide and soot generated during the coking process have become an important source of air pollution. During the coal charging operation of the coke oven, a large amount of flue gas will escape from the coal charging hole, and the pollutants are emitted in bursts along with the coal charging operation. Pollutants discharged to the outside world account for 50% to 60% of all pollutants discharged in the coking process, which contains a large amount of dust and sulfide. [0003] The existing coke oven coal charging flue gas purification process can remove most of the dust in the pollutants discharged to the outside during the coal charging process by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B43/02B01D46/02B01D53/02B01D53/50B01D53/86B01D53/48
CPCB01D46/023B01D53/02B01D53/50B01D53/8603B01D2257/306B01D2258/0283B01D2259/4009C10B43/02
Inventor 高峰杨伟明杜雄伟吴英军孙加亮叶小虎
Owner CERI ENERGY & AIR PROTECTION TECH CO LTD
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