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Coking plant coke oven gas utilization and flue gas treatment system and method

A flue gas treatment system and coke oven gas technology, which are applied in the field of energy saving and emission reduction in the coking industry, can solve the problems of low temperature denitration treatment of coke oven exhaust gas, reduce project investment and floor space, reduce construction costs, reduce The effect of floor space and space

Pending Publication Date: 2017-08-04
HUATIAN NANJING ENG & TECH CORP MCC
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Problems solved by technology

[0006] In view of the above problems, an object of the present invention is to provide a coke oven gas utilization and flue gas treatment system in a coking plant to solve the problem that the coke oven exhaust gas in a coking plant has a low temperature and is not suitable for directly entering a denitrification device for denitrification treatment

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  • Coking plant coke oven gas utilization and flue gas treatment system and method

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Embodiment Construction

[0040] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] see figure 1 , A coking plant coke oven gas utilization and flue gas treatment system, including at least coke oven 1, gas treatment device 2, coke oven gas boiler 4, coke oven exhaust gas flue one 5, coke oven exhaust gas flue two 6, and denitration device 7. Waste heat recovery flue 8, induced draft fan 9, desulfurization device 10 and chimney 11,

[0042] The raw gas outlet of the coke oven 1 is connected to the gas treatment device 2 through a pipeline;

[0043] The gas outlet of the gas processing device 2 is connected to the coke oven gas boiler 4 through a pipeline;

[0044] The flue gas outlet of the coke oven 1 communicates with the chimney 11 through the coke oven exhaust gas flue one 5, and the flue gas outlet of the coke oven 1 also communicates with the high temperature flue of the coke oven gas boiler 4 through the coke oven fl...

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Abstract

The invention provides a coking plant coke oven gas utilization and flue gas treatment system and method. A crude gas outlet of a coke oven is connected with a gas treatment device through a pipeline, and a gas outlet of the gas treatment device communicates with a coke oven gas boiler through a pipeline. A flue gas outlet of the coke oven communicates with a chimney through a coke oven waste gas flue, and the flue gas outlet of the coke oven further communicates with a high-temperature flue of the coke oven gas boiler through a second coke oven waste gas flue. The high-temperature flue of the coke oven gas boiler sequentially communicates with a denitration device, a waste heat recycling flue, an induced draught fan, a denitration device and the chimney through a pipeline. The invention further provides a method for treating flue gas through the system. By means of the coking plant coke oven gas utilization and flue gas treatment system and method, coke oven gas is efficiently utilized, meanwhile, emission of SO2 and NOX is effectively controlled, several treating difficulties of coke oven flue gas are overcome, and safe running of the coke oven is ensured.

Description

Technical field [0001] The invention relates to the technical field of energy saving and emission reduction in the coking industry, and more specifically, to a coking plant coke oven gas utilization and flue gas treatment system and a treatment method thereof. Background technique [0002] In the coking process of the coking plant, a large amount of by-product coke oven gas is produced. Except for the part of the gas consumed by the coke oven itself, there is still a lot of surplus. How to use this part of the coke oven gas efficiently is a comparison of the relevant technical personnel issue concerned. [0003] On the other hand, due to the high calorific value of coke oven gas, high combustion temperature, and contains H 2 S and other components, resulting in a large amount of NO in the flue gas after the combustion of coke oven gas X And SO 2 . In recent years, as the haze situation continues to worsen and the air quality continues to deteriorate, the state has become more and ...

Claims

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Application Information

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IPC IPC(8): F27D17/00F22B1/18F22D1/02B01D53/86B01D53/56B01D53/50
CPCB01D53/50B01D53/8625F22B1/18F22D1/02F27D17/004B01D2258/0283F27D2017/006Y02P10/25
Inventor 江文豪
Owner HUATIAN NANJING ENG & TECH CORP MCC
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