Device and method for reducing sulfur dioxide of chimney of dry quenching environment ground dust removal system

A dust removal system and sulfur dioxide technology, applied in chemical instruments and methods, separation methods, coke cooling, etc., can solve the problem of excessive sulfur dioxide in chimneys, and achieve the effects of reduced emissions, compact and reasonable layout, good environmental protection benefits and social benefits

Pending Publication Date: 2018-08-10
JINNENG SCI & TECH
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The provided device and method for reducing sulfur dioxide in the chimney of the CDQ environment ground dust removal system mainly solve the problem of excessive sulfur dioxide in the chimney of the CDQ environment ground dust removal station. The method and device mentioned in the present invention can remove the chimney sulfur dioxide and reduce the amount of pollutants. emission, improve the internal and surrounding atmospheric environment of the enterprise, and have good social benefits

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  • Device and method for reducing sulfur dioxide of chimney of dry quenching environment ground dust removal system

Examples

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Embodiment 1

[0052] This embodiment provides a device for reducing sulfur dioxide in the chimney of the CDQ environmental ground dust removal system. The structural diagram of the device is as follows figure 1 shown, from figure 1 It can be seen that it includes:

[0053] The first automatic valve 1, the second automatic valve 3, the third automatic valve 4, the dust removal station 10, the frequency conversion fan 7, the flue gas desulfurization device 9 and the automatic control system 8;

[0054] The first automatic valve 1 and the second automatic valve 3 are installed on the pre-storage room discharge pipeline 12 connected between the auxiliary economizer 11 and the dust removal negative pressure pipeline 13, and the first automatic valve 1 and the second automatic valve 3 Also be equipped with tee (not shown among the figure) on this pre-storage chamber release pipeline 13 between;

[0055] The tee is connected to the dust removal station 10 through the third automatic valve 4 thro...

Embodiment 2

[0062] This embodiment also provides a method for reducing sulfur dioxide in the chimney of the CDQ environment ground dust removal system, which is realized by using the device for reducing CDQ environment ground dust removal system chimney sulfur dioxide provided in Example 1. The method includes the following steps :

[0063] (1) Open the first automatic valve and the third automatic valve, close the second automatic valve, so that the released gas enters the dust removal station for dust removal treatment; after the dust removal treatment, the content of particulate matter in the released gas is ≤30mg / Nm 3 .

[0064] (2) Let the vented gas after the dedusting process enter the flue gas desulfurization device for desulfurization treatment, and the desulfurized gas after the desulfurization treatment (sulfur dioxide content ≤ 30mg / Nm 3 ) are discharged through the chimney.

[0065] In this embodiment, the temperature of the degassed gas in step (1) and the dedusted gas in ...

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Abstract

The invention provides a device and method for reducing sulfur dioxide of a chimney of a dry quenching environment ground dust removal system. The device comprises a first automatic valve, a second automatic valve, a third automatic valve, a dust removal station, a variable-frequency fan, a smoke gas desulfurization device and an automatic control system, wherein the first automatic valve and thesecond automatic valve are arranged onto a pre-storing chamber discharging pipeline between a sub coal saver and a dust removal negative pressure pipeline; a tee joint is also arranged on the pre-storing chamber discharging pipeline between the first automatic valve and the second automatic valve; the tee joint is connected with the dust removal station through the third automatic valve via a pipeline; the dust removal station is connected with the smoke gas desulfurization device through a pipeline; the variable-frequency fan is positioned onto a pipeline between the dust removal station andthe smoke gas desulfurization device; the automatic control system is electrically connected with the first automatic valve, the second automatic valve, the third automatic valve and the variable-frequency fan. The device and the method mainly solve the problem of sulfur dioxide standard exceeding of the chimney of a dry quenching environment ground dust removal station; the pollutant discharge can be further reduced.

Description

technical field [0001] The invention relates to a device and method for reducing sulfur dioxide in a chimney of a ground dust removal system in a CDQ environment, and belongs to the technical field of CDQ production. Background technique [0002] Dry coke quenching is relative to wet coke quenching, which refers to the substance obtained by cooling red coke with an inert gas (usually nitrogen). CDQ has many advantages, such as absorbing the heat of red coke to save energy; improving the quality of coke; improving the environment and reducing pollution. The process of preparing dry coke quenching prevents the pollution of the atmospheric environment by harmful components such as water vapor, phenol, sulfide, and cyanide produced by wet coke quenching. In order to make the CDQ system achieve the purpose of energy saving and environmental protection, it is necessary to purify the particulate matter generated in the production process. Therefore, a special dust removal system i...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D46/02C10B39/02
CPCB01D46/02B01D53/00C10B39/02B01D2257/302
Inventor 杨建华张建社王瑞谷文彬
Owner JINNENG SCI & TECH
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