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Flue gas denitration treatment device of cement grinding system

A processing device and cement powder technology, which is applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve problems such as few treatment solutions, reduce energy consumption and operating costs, reduce flue gas temperature, and ensure heat balance Effect

Pending Publication Date: 2020-05-12
中冶大地工程咨询有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the ultra-low emission requirements of the guiding emission standards, the NOx of the flue gas directly discharged into the atmosphere exceeds the standard. At present, there are few relevant treatment programs at home and abroad.

Method used

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  • Flue gas denitration treatment device of cement grinding system
  • Flue gas denitration treatment device of cement grinding system

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Embodiment Construction

[0013] 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.

[0014] The purpose of the present invention is to solve the problem of flue gas denitrification in the cement grinding system, and proposes a new processing device to solve the control idea of ​​ultra-low nitrogen oxides under low temperature conditions.

[0015] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompa...

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Abstract

The invention discloses a flue gas denitration treatment device of a cement grinding system. The device comprises a GGH flue gas heat exchanger, a low-temperature catalyst SCR reactor and a variable-frequency fan, wherein the GGH flue gas heat exchanger is provided with a first input end, a first output end, a second input end and a second output end; an outlet flue gas pipeline of a bag-type dustcollector of the cement grinding system is communicated with the first input end; the first output end is communicated with a gas inlet end of the low-temperature catalyst SCR reactor; a gas outlet end of the low-temperature catalyst SCR reactor is communicated with the second input end; and the second output end is communicated with the variable-frequency fan. The low-temperature catalyst SCR reactor adopts a low-temperature catalyst and is further matched with the GGH flue gas heat exchanger for use, so that the denitration function is effectively realized and the operation cost of the device is reduced; the independent variable-frequency fan is arranged, so that the fluctuation of the amount of treated denitrified flue gas is effectively controlled in a variable-frequency form, and thestability of the whole system is guaranteed.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment and environmental protection equipment, in particular to a flue gas denitrification treatment device of a cement grinding system. Background technique [0002] The tail gas of cement kiln is an important source of air pollution. In recent years, the state has paid special attention to the pollution control in the cement field. During the production process of the vertical mill of the cement grinding system, sulfur oxides, nitrogen oxides and particulate matter are produced, which are serious Harmful to our living environment, acid rain, smog and other problems occur frequently. In order to cope with the environmental impact brought by the production of cement grinding system, the national environmental protection department began to require the treatment of its tail gas to be put on the agenda, among which the treatment requirements are further stringent, and the requirements for denitr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/34B01D53/56
CPCB01D53/343B01D53/8631
Inventor 邓志鹏樊响周景伟谢桂龙薛曼龄
Owner 中冶大地工程咨询有限公司
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