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Flue gas dedusting and desulfurization and denitrification craft and special device thereof

A technology for desulfurization and denitrification, special equipment, applied in the direction of dispersed particle separation, chemical instruments and methods, combined devices, etc., can solve the problems of difficult waste liquid treatment, high investment cost, high energy consumption in operation, etc., achieve good denitrification and desulfurization efficiency, reduce Pollution, the effect of improving the removal rate

Inactive Publication Date: 2013-03-20
JIANGSU ZHONGXIAN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first eight methods are dry processes, and they have the disadvantages of complicated process, high investment cost and high energy consumption in operation to varying degrees.
The latter three are wet processes, and there are deficiencies such as equipment corrosion and waste liquid treatment difficulties

Method used

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  • Flue gas dedusting and desulfurization and denitrification craft and special device thereof

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Embodiment Construction

[0031] The present invention will be further clarified below in conjunction with the accompanying drawings. This specific embodiment is implemented on the premise of the technical solution of the present invention. It should be understood that these modes are only used to illustrate the present invention and not to limit the scope of the present invention.

[0032] A flue gas dedusting desulfurization and denitrification process, comprising:

[0033] (1) The flue gas first enters the waste heat utilization device for heat exchange and cooling, so that the temperature of the flue gas drops to about 150-180°C, and the cooled flue gas enters the bag filter to separate the dust in the flue gas and make the dust in the flue gas Concentration reduced to 30mg / m 3 ;

[0034](2) Blow a strong oxidant into the flue gas, and the oxidized flue gas enters the swirling double supergravity bed or static cyclone (or directly oxidizes in the swirling double supergravity bed or static reactor)...

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Abstract

The invention discloses a flue gas dedusting, desulfurization and denitrification craft and a special device of the flue gas dedusting, desulfurization and denitrification craft. A mixed glass fiber ceramic bag with double coatings or a polytetrafluoroethylene bag with the double coatings is utilized to dedust. An ultra-gravity bed or a static cyclone is used as an absorbing and washing reactor. A compulsory oxidation and alkali washing manner is adopted by a comprehensive flue gas processing craft for the desulfurization and the denitrification. A dirt catcher is high in dust removal rate, and is high-temperature resisting, and temperature fluctuation in a large scale is resisted. Ultra-fine powder can be removed. According to the ultra-gravity bed as the reactor, reaction and absorbing strength and absorbing efficiency can be greatly improved, and at the same time, size and investment of equipment can be greatly reduced. Modularization combined installation is achieved, occupied space is greatly reduced, and manufacture and installing procedure is easy, fast and convenient.

Description

technical field [0001] The invention belongs to the technical field of dust removal, desulfurization and denitrification, and in particular relates to a flue gas dust removal, desulfurization and denitrification process and special equipment thereof. Background technique [0002] The equipment that removes or collects solid or liquid particles from the gas is called dust removal device, which can be divided into wet dust removal device and dry dust removal device; according to the separation principle, it can be divided into: gravity dust removal device (mechanical dust removal device), inertial force dust removal device Device (mechanical dust removal device), centrifugal force dust removal device (mechanical dust removal device), washing dust removal device, filter dust removal device, electric dust removal device. At present, the most widely used are electrostatic precipitator, bag filter, cyclone dust collector, etc. The efficiency of electrostatic precipitator can reach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D50/00B01D53/79B01D53/60
Inventor 袁长胜程晓辉
Owner JIANGSU ZHONGXIAN GRP CO LTD
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