Integrated system equipment for desulfurization and denitrification of flue gas

A desulfurization, denitrification and flue gas technology, applied in chemical instruments and methods, dispersed particle separation, dispersed particle filtration, etc. , The effect of less machinery and equipment and less consumption of consumables

Inactive Publication Date: 2013-03-13
KELIN ENVIRONMENTAL PROTECTION EQUIP
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  • Abstract
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Problems solved by technology

[0003] Compared with the flue gas produced by other industrial furnaces, the steel sintering flue gas has a large amount of flue gas, a lot of dust, a large moisture content, strong corrosion and SO 2 , NO X concentrations are characterized by large changes, but the process adopted by the iron and steel sintering flue gas desulfurization and denitrification devices that have been put into operation in my country is still in the research and development and trial stage. The effect of desulfurization and denitrification needs to be further verified and evaluated

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  • Integrated system equipment for desulfurization and denitrification of flue gas

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing and embodiment:

[0026] Such as figure 1 The flue gas desulfurization and denitrification integrated system equipment shown includes absorption tower 1 , bag filter 2 , induced draft fan 3 and chimney 4 connected in sequence. Among them: the absorption tower 1 is a variable-speed dragging absorption tower, and the specific structure is: a Venturi pipe section is arranged in the absorption tower 1, and an expansion section is arranged on the upper part of the Venturi pipe section, and the flue gas enters the Venturi pipe section at the bottom of the absorption tower 1. The inner pipe section accelerates, and the flue gas accelerates to form a fluidized zone.

[0027] The integrated system equipment also includes an absorbent silo 5, an adsorbent silo 6, and a humidification mechanism 7, and the absorbent silo 5 and the adsorbent silo 6 are all connected to the Venturi ...

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Abstract

The invention relates to integrated system equipment for desulfurization and denitrification of flue gas. The equipment comprises an absorption tower, a bag dust collector, a draught fan and a chimney, which are successively connected, and further comprises an absorber storage bin, an absorbent storage bin and a humidifying mechanism. The absorber storage bin, the absorbent storage bin and the humidifying mechanism are all connected to an inlet of the absorption tower; an ash bucket outlet of the bag dust collector is connected with an air chute, which is connected to the inlet of the absorption tower. The equipment provided by the invention realizes desulfurization rate higher than 90% and denitrification rate of 50%-80%, and has advantages of high degree of automation, compact structure, small area occupation, and obvious technological advantage.

Description

technical field [0001] The invention relates to an integrated system equipment for flue gas desulfurization and denitrification. Background technique [0002] Sintering is an important process in modern iron and steel enterprises. It is the basis for high-quality and high-yield blast furnace smelting and plays an important role in the production of iron and steel. Since most of the iron ore in our country is lean ore, it is not economical to smelt it directly into the furnace. Therefore, the lean ore must be crushed to select high-grade concentrate, and then the concentrate powder is sintered into artificial rich ore before it can be smelted in the blast furnace. . Secondly, fine ore is produced during the mining process of rich ore, and the direct feeding of fine ore into the furnace will cause disturbances in the blast furnace and deteriorate the technical and economic indicators of the blast furnace. During the sintering process, a large amount of pollutants will be pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/81B01D53/60B01D53/68B01D53/72B01D46/02
Inventor 徐天平沈强孙金荣
Owner KELIN ENVIRONMENTAL PROTECTION EQUIP
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