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Flue gas treatment system and method for cement kiln

A flue gas treatment system and a technology for a cement kiln, which are applied in the field of flue gas treatment, can solve the problems of difficulty in simultaneous dechlorination, alkali removal, dust removal, desulfurization, denitrification and dioxin removal, and achieve the effect of high treatment efficiency

Pending Publication Date: 2020-05-08
BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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Problems solved by technology

[0006] Embodiments of the present invention provide a system and method for flue gas treatment of cement kilns, which are used to solve the problem of simultaneous removal of chlorine, alkali, dust, desulfurization, nitrogen, and dioxin in the flue gas treatment of cement kilns. English question

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  • Flue gas treatment system and method for cement kiln
  • Flue gas treatment system and method for cement kiln
  • Flue gas treatment system and method for cement kiln

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected...

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Abstract

The invention relates to the technical field of flue gas treatment, and discloses a flue gas treatment system and method for a cement kiln; the flue gas treatment system comprises a flue gas extraction device, an air cooling device, a nitrogen reduction device, a desulfurization device and an induced draft device; the gas inlet end of the flue gas extraction device is used for being communicated with the cement kiln; the air cooling device is communicated with the flue gas extraction device and is used for carrying out shock cooling treatment on flue gas extracted by the flue gas extraction device; the gas outlet end of the flue gas extraction device is sequentially communicated with the nitrogen reduction device and the desulfurization device through a flue or sequentially communicated with the desulfurization device and the nitrogen reduction device through a flue, and the induced draft device is mounted on the flue; during flue gas treatment of the cement kiln, chlorine removal, alkali removal, desulfurization, denitrification and dioxin removal can be considered at the same time, the flue gas treatment efficiency is high, normal operation of the cement kiln is guaranteed, and ultra-clean emission of flue gas is achieved.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment, in particular to a system and method for flue gas treatment of a cement kiln. Background technique [0002] The cement industry is an industry that consumes a lot of resources and energy and pollutes heavily. In the process of cement production, cement kilns will produce a large amount of nitrogen oxides and sulfur dioxide. Without treatment, these gas oxides will be discharged into the atmosphere together with smoke and dust, which will cause serious pollution to the atmospheric environment. [0003] At the same time, due to the simple process, low disposal cost and high degree of harmlessness of co-processing hazardous waste by using cement kiln, this process is more and more widely recognized by people. At present, factories using this process to treat solid waste or hazardous waste account for more than 30% of all cement enterprises. When using cement kiln to treat solid waste or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/70B01D53/00B01D53/86B01D53/80B01D53/50F27D17/00
CPCB01D53/00B01D53/502B01D53/504B01D53/70B01D53/75B01D53/80B01D53/8628B01D53/8631B01D2251/604B01D2257/2025B01D2257/206B01D2257/60B01D2258/0233B01D2258/0283F27D17/004F27D17/008
Inventor 刘鹏飞刘卫民郝洁王图强郝利炜吴学谦张泰格姜树丰黄海林
Owner BEIJING BUILDING MATERIALS ACADEMY OF SCI RES
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