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Flue gas series desulfurization and denitration system and method

A desulfurization, denitrification and flue gas technology, which is applied in the field of flue gas series desulfurization and denitrification systems, can solve problems such as large loss of active coke, and achieve the effects of improving efficiency, low overall energy consumption, and reducing operating costs.

Pending Publication Date: 2019-03-01
CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of large loss of activated coke in the prior art for desulfurization and denitrification

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  • Flue gas series desulfurization and denitration system and method

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0027] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than in...

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Abstract

The invention belongs to the technical field of industrial waste gas treatment, and particularly provides a flue gas series desulfurization and denitration system and method. Flue gas is purified by sequentially causing flue gas to pass through a desulfurization adsorption tower and a denitration adsorption tower in series; meanwhile, active coke is conveyed to the desulfurization adsorption towerand the denitration adsorption tower independently respectively through an active coke conveying unit, and the active coke after the reaction is conveyed to an analytical tower for independent analysis and recycling. On the one hand, by independently controlling conveying amounts and conveying speeds of the active coke in the desulfurization adsorption tower and the denitration adsorption tower,the desulfurization and denitration efficiency is improved; on the other hand, by precisely controlling the conveying amounts and the conveying speeds of the active coke, the desynchrony of the two inthe use amount of the active coke is achieved, the physical loss of the active coke is reduced, and the running cost is reduced; the heating is not required before and after the flue gas treatment, and the overall energy consumption is low.

Description

technical field [0001] The invention belongs to the technical field of industrial waste gas treatment, and in particular relates to a flue gas series desulfurization and denitrification system and method. Background technique [0002] The sintering head and pellet sintering have a large amount of sintering flue gas, and the initial temperature of the flue gas is low. At present, the integrated technology of dry desulfurization and denitrification without heating up is mainly dominated by activated coke desulfurization and denitrification technology. In order to meet ultra-clean emissions and simultaneous desulfurization and denitrification, there are two current arrangements: ① Desulfurization and denitrification are arranged up and down in an adsorption device. The active coke in the regeneration device is transported to the top of the adsorption device through a chain bucket machine, and the active coke flows sequentially under the action of gravity. After passing through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02
CPCB01D53/02
Inventor 胡鑫熊敬超程朝华罗海兵李啸刘升施飞张兵夏龙陶惠祥董岗原庆军
Owner CHINA CITY ENVIRONMENT PROTECTION ENGINEERING LIMITED COMPANY
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