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A New Method for Simultaneously Controlling Pollutant Emissions During Sintering Process Based on Layered Batching and Cloth

A technology for pollutant emission and sintering process, applied in the field of simultaneous control of pollutant emission, can solve the problems of difficult simultaneous control of multiple pollutants and reduce emission reduction costs, so as to reduce emission reduction costs, achieve coordinated emission reduction, and reduce emission reductions. The effect of removing the burden

Active Publication Date: 2016-09-28
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to overcome the disadvantages in the prior art that the emission reduction technology of sintering flue gas pollutants belongs to the terminal treatment, and it is difficult to realize the synchronous control of multiple pollutants in the sintering process, and provides a method based on layered ingredients and distribution A new method for synchronously controlling pollutant emissions during the sintering process, realizing the coordinated emission reduction of multiple pollutants online in the sintering process, and further reducing the cost of emission reduction

Method used

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  • A New Method for Simultaneously Controlling Pollutant Emissions During Sintering Process Based on Layered Batching and Cloth
  • A New Method for Simultaneously Controlling Pollutant Emissions During Sintering Process Based on Layered Batching and Cloth
  • A New Method for Simultaneously Controlling Pollutant Emissions During Sintering Process Based on Layered Batching and Cloth

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Effect test

Embodiment 1

[0048] Combine figure 1 , figure 2 with image 3 In this embodiment, a new method for synchronously controlling pollutant emissions during the sintering process based on layered batching and cloth. The sintering trolley 5 is provided with a bottoming material distributing device 61 and a first mixture distributing device 62 in sequence. , Emission reduction mixture distributing device 63, second mixture distributing device 64 (such as figure 1 (Shown), wherein: the bottoming material distributing device 61 is used for laying the bottoming material layer 1 on the sintering trolley 5, and the first mixture distributing device 62 is used for the paving step on the bottoming material layer 1 The sintering mixture (a) prepared in (A) and forming the first mixture layer 2. The total thickness of the bottoming material layer 1 and the first mixture layer 2 is 90 mm; the emission reduction mixture The material distributing device 63 is used to pave the additive-equipped mixture (b) pr...

Embodiment 2

[0089] The basic process of the new method for synchronously controlling pollutant emission during the sintering process based on layered ingredients and cloth of this embodiment is the same as that of Embodiment 1, except that: the bottom layer 1 and the first mixed material layer 2 of this embodiment The total height (total thickness of the material layer) of the cooperative emission reduction material layer 3 and the second mixed material layer 4 is 800mm, and the thickness of the cooperative emission reduction material layer 3 is 110mm, and SO 2 , The generation concentration of dioxin, and calculate the desulfurization rate and dioxin emission reduction efficiency. The desulfurization rate of this embodiment is 85.45%, and the emission reduction efficiency of dioxin is 72.17%.

Embodiment 3

[0091] The basic process of the new method for synchronously controlling pollutant emission during the sintering process based on layered ingredients and cloth of this embodiment is the same as that of Embodiment 1, except that: the bottom layer 1 and the first mixed material layer 2 of this embodiment The total height (total thickness of the material layer) of the cooperative emission reduction material layer 3 and the second mixed material layer 4 is 800mm, and the thickness of the cooperative emission reduction material layer 3 is 120mm, and SO 2 , The generation concentration of dioxin, and calculate the desulfurization rate and the emission reduction efficiency of dioxin, the desulfurization rate of this embodiment is 86.23%, and the emission reduction efficiency of dioxin is 72.65%.

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Abstract

The invention discloses a new method for synchronously controlling pollutant emissions in the sintering process on the basis of layered material preparation and distribution and belongs to the technical field of pollutant emission reduction in the sintering process. The method comprises the specific step one of sintering mixed materials, wherein the sintered mixed material (a) and a mixed material (b) with an addition agent are prepared; the step two of sintering and distributing the materials, wherein the step two comprises the substeps that (A) a grate-layer material layer is laid on a sintering trolley, (B) the sintered mixed material (a) is laid on the grate-layer material layer to form a first mixed material layer, (C) then the mixed material (b) with the addition agent is laid on the first mixed material layer to form a collaborative emission reducing material layer, and (D) then the sintered mixed material (a) is laid on the collaborative emission reducing layer to form a second mixed material layer; the step three of collecting and treating smoke in a centralized mode, wherein the smoke in an air box at the rear middle of the trolley is collected into a bag-type dust collector through a booster pump. By means of layered material preparation and distribution, multiple pollutants can be controlled synchronously in the sintering process.

Description

Technical field [0001] The invention relates to the technical field of pollutant emission reduction in the sintering process, and more specifically, to a new method for synchronously controlling pollutant emission during the sintering process based on layered ingredients and cloth. Background technique [0002] The sintering process is an important process in the production chain of steel complexes. With the rapid development of the steel industry, the demand for iron ore is increasing. However, there are fewer and fewer rich ore directly into the furnace for iron smelting, and a large amount of lean ore resources must be mined and used. The direct smelting of lean ore will worsen the blast furnace production index. The function of the sintering machine is to agglomerate the iron ore powder. The metallurgical properties of sintered minerals are greatly improved, which brings huge economic benefits to blast furnace production. Moreover, the sintering method is very adaptable to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/16
Inventor 吴雪健龙红明李家新王平孟庆民狄瞻霞春铁军张向阳张艳华钱立新
Owner ANHUI UNIVERSITY OF TECHNOLOGY