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a sintering process so 2 , Dioxin synergistic emission reduction method and system

A sintering process and sintering material technology, applied in the sintering process SO2, dioxin synergistic emission reduction method and system field, can solve difficult dioxin synergistic emission reduction and other problems, to overcome technical drawbacks, reduce emission reduction burden, The effect of air volume

Active Publication Date: 2017-06-16
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] The purpose of the present invention is to overcome the prior art, the sintering flue gas pollutant emission reduction technology belongs to the terminal treatment, and it is difficult to realize SO2 in the sintering process 2 , Dioxin synergistic emission reduction, provides a sintering process SO 2 , Dioxin synergistic emission reduction method and system, to achieve online SO in the sintering process 2 , Synergistic emission reduction of dioxins

Method used

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  • a sintering process so <sub>2</sub> , Dioxin synergistic emission reduction method and system
  • a sintering process so <sub>2</sub> , Dioxin synergistic emission reduction method and system
  • a sintering process so <sub>2</sub> , Dioxin synergistic emission reduction method and system

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Embodiment 1

[0044] combine figure 1 , figure 2 with image 3 , a sintering process of this embodiment SO 2 , Dioxin collaborative emission reduction system, the top of the sintering trolley 5 is sequentially provided with a bottom material distribution device 61, a first mixture distribution device 62, an emission reduction mixture distribution device 63, and a second mixture distribution device 64 ( Such as figure 1 shown), wherein: the bottom material distribution device 61 is used to pave the bottom material layer 1 on the upper part of the sintering trolley 5, and the first mixed material distribution device 62 is used to pave the sintering layer above the bottom material layer 1 mixture, and form the first mixture layer 2, the total thickness of the bottom layer 1 and the first mixture layer 2 is 90mm; 2. The sintering mixture mixed with ammonia inhibitors is paved on the top, and a synergistic emission reduction material layer 3 is formed. The height of the bottom of the synerg...

Embodiment 2

[0072] SO in the sintering process of this embodiment 2 1. The basic process of the method for synergistic emission reduction of dioxins is the same as that of Example 1, except that the bottom layer 1, the first mixture layer 2, the synergistic emission reduction layer 3 and the second mixture layer 4 of the present embodiment The total height of the material layer (the total thickness of the material layer) is 800mm, wherein the thickness of the collaborative emission reduction material layer 3 is 110mm, and the SO 2 , the generation concentration of dioxins, and calculate the desulfurization rate and the emission reduction efficiency of dioxins. The desulfurization rate of the present embodiment is 85.14%, and the emission reduction efficiency of dioxins is 63.83%.

Embodiment 3

[0074] SO in the sintering process of this embodiment 2 1. The basic process of the method for synergistic emission reduction of dioxins is the same as that of Example 1, except that the bottom layer 1, the first mixture layer 2, the synergistic emission reduction layer 3 and the second mixture layer 4 of the present embodiment The total height of the material layer (the total thickness of the material layer) is 800mm, wherein the thickness of the collaborative emission reduction material layer 3 is 120mm, and the SO 2 , the generation concentration of dioxins, and calculate the desulfurization rate and the emission reduction efficiency of dioxins. The desulfurization rate of the present embodiment is 85.78%, and the emission reduction efficiency of dioxins is 65.95%.

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Abstract

The invention discloses a sintering process SO 2 1. A method and system for synergistic emission reduction of dioxins, belonging to the technical field of pollutant emission reduction in sintering process. The synergistic emission reduction system of the present invention includes a bottom material distributing device, a first mixed material distributing device, an emission reduction mixed material distributing device, a second mixed material distributing device, the bellows at the middle and rear of the sintering trolley are connected to the main flue through a bag filter. Connected; the steps of this synergistic emission reduction method are: Step 1: sintering cloth: (A) paving the bottom material layer; (B) paving the first mixed material layer; (C) paving the synergistic emission reduction material layer; (D ) Pave the second mixture layer; Step 2: Concentrated collection and treatment of flue gas: During the sintering process, the flue gas in the air box at the middle and rear of the sintering trolley is dedusted by the bag filter and then introduced into the main flue of the sintering machine through the pipe. The present invention realizes the sintering process SO by setting the collaborative emission reduction material layer 2 The coordinated emission reduction of dioxins and dioxins has greatly reduced the emission reduction burden of iron and steel enterprises.

Description

technical field [0001] The invention relates to the technical field of pollutant emission reduction in the sintering process, more specifically, to a sintering process SO 2 , Method and system for synergistic emission reduction of dioxins. Background technique [0002] The sintering process is an important process in the production chain of iron and steel complexes. With the rapid development of the iron and steel industry, the demand for iron ore is increasing day by day. However, there are fewer and fewer rich ores that are directly put into the furnace for ironmaking, and a large amount of lean ore resources must be mined and used. Smelting lean ore directly into the furnace will deteriorate the production index of the blast furnace. Therefore, lean ore is processed to obtain concentrate powder through mineral processing. The fine ore produced during the mining and processing of concentrate and rich ore needs to be agglomerated before it can be used in blast furnace ir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/22
Inventor 龙红明李家新王平孟庆民吴雪健张向阳张艳华钱立新
Owner ANHUI UNIVERSITY OF TECHNOLOGY