Sintering flue gas desulfurization and denitrification apparatus

A technology for desulfurization, denitrification, and sintering flue gas, which is applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., and can solve the problem of insufficient contact between absorbing liquid and flue gas, poor flue gas treatment effect, and high consumption of absorbing liquid. To improve the contact probability and contact time, improve the desulfurization effect, and improve the absorption effect

Pending Publication Date: 2019-12-20
苏州仕净科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether the contact between the absorption liquid and the flue gas is sufficient has a great impact on the desulfurization effect, but in the prior art, there is a problem of insufficient contact between the absorption liquid and the flue gas through simple spraying, which may easily lead to poor flue gas treatment effect, or It is the problem of excessive consumption of absorption liquid, etc.

Method used

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  • Sintering flue gas desulfurization and denitrification apparatus
  • Sintering flue gas desulfurization and denitrification apparatus
  • Sintering flue gas desulfurization and denitrification apparatus

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Such as figure 1 As shown, a sintering flue gas desulfurization and denitrification device 6 in this embodiment includes an oxidation device 1, a dust removal device 2, a gas distribution main pipe 430, a desulfurization device 4, a gas transmission pipeline 5 and a denitrification device 6 arranged in sequence along the airflow direction;

[0047] The desulfurization device 4 includes a desulfurization tower body 40, a slant plate filter assembly 41 arranged inside the desulfurization tower body 40, a desulfurization spray assembly 42 for supplying absorption liquid into the desulfurization tower body 40, and a gas distribution main pipe 430 for entering The flue gas is delivered to the gas distribution component 43 in the desulfurization tower body 40;

[0048]The sloping plate filter assembly 41 includes a number of sloping filter plates 410 arranged staggeredly on the inner wall of the desulfurization tower body 40 , one end of the sloping filter plates 410 is conne...

Embodiment 2

[0058] This embodiment is a further improvement on the basis of Embodiment 1, refer to Figure 2-5 , in this embodiment, one end of the sloping filter plate 410 connected to the inner wall of the desulfurization tower body 40 has an arc-shaped end edge 416, a connecting block 417 is fixedly connected to the arc-shaped end edge 416, and a connecting hole 418 is opened on the connecting block 417 . An installation block 400 is fixedly connected to the inner wall of the desulfurization tower body 40, and the installation block 400 is provided with an installation groove 401 for the connection block 417 to be inserted into. The pin shaft 403 passing through the connection hole 418; the inner wall of the desulfurization tower body 40 is also fixedly connected with a telescopic strut 404, and the other end of the telescopic strut 404 is rotatably connected with the middle part of the filter swash plate 410, and the telescopic strut 404 is selected from existing The conventional tel...

Embodiment 3

[0065] This embodiment is a further improvement on the basis of embodiment 2, refer to Figure 6-7 , in this embodiment, the air distribution assembly 43 includes a first air distribution pipe 431 and a second air distribution pipe 432 that communicate with the air intake pipe 3 through the air distribution main pipe 430. The air distribution main pipe 430 communicates with the second air distribution pipe 432. The adapter pipe head 433 communicated with the outlet end of the adapter pipe head 433, the cone air distribution cylinder 434 communicated with the upper end of the adapter pipe head 433, and the liquid guide box 435 communicated with the lower end of the adapter pipe head 433; the bottom of the liquid guide box 435 is provided with a plurality of liquid outlets hole, the lower end of the adapter pipe head 433 communicates with the inside of the liquid guiding box 435 through a constricted tube 436 . The second air distribution pipe 432 is provided with a liquid block...

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Abstract

The invention discloses a sintering flue gas desulfurization and denitrification apparatus. The apparatus comprises an oxidation apparatus, a dust removal apparatus, a gas inlet pipeline, a desulfurization apparatus, a gas conveying pipeline, and a denitrification apparatus which are sequentially arranged along a gas flow direction, wherein the desulfurization apparatus comprises a desulfurizationtower body, an inclined plate filtering assembly arranged inside the desulfurization tower body, a desulfurization spraying assembly for supplying an absorption liquid into the desulfurization towerbody, and a gas distribution assembly for conveying flue gas entering from the gas inlet pipeline into the desulfurization tower body; the denitrification apparatus comprises a denitrification tower body, and a denitrification spraying assembly arranged inside the denitrification tower body. The apparatus sequentially performs desulfurization and denitrification treatment on the sintering flue gasthrough the desulfurization apparatus and the denitrification apparatus, so that the flue gas can reach the emission standard. The apparatus filters the flue gas by arranging the inclined plate filtering assembly, filtering inclined plates are used as carriers of the absorption liquid, the contact probability and contact time between the flue gas and the absorption liquid can be greatly increased, full absorption of sulfur-containing substances in the flue gas by the absorption liquid is ensured, and thereby the desulfurization effect is improved.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a sintering flue gas desulfurization and denitrification device. Background technique [0002] The iron and steel industry will produce a large amount of sintering flue gas in the production process, and there is a large amount of SO in the sintering flue gas 2 , SO 3、 NO X Pollutants are a major source of air pollution and must be desulfurized and denitrified before they can be discharged. The existing sintering flue gas desulfurization and denitrification treatment processes mainly include wet process and dry process. Among them, the wet process has the characteristics of fast reaction speed and high efficiency, and is widely used. It usually oxidizes flue gas (mainly oxidizes NO to NO 2 ) after desulfurization and denitrification by using the absorption liquid, the absorption liquid and the gas are sprayed countercurrently to absorb the SO in the flue gas 2 , ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/78B01D53/56B01D53/50B01D53/76
CPCB01D53/75B01D53/78B01D53/502B01D53/56B01D53/76B01D2251/604B01D2251/104B01D2251/106
Inventor 董仕宏吴倩倩张世忠
Owner 苏州仕净科技股份有限公司
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