Water bath deduster, dedusting method and quicklime slaking and dedusting device

A technology of dust collector and quicklime, which is applied in the direction of chemical instruments and methods, combined devices, separation methods, etc., can solve the problems of lime digestion and dust removal sewage environmental pollution, dust and flue gas environmental pollution, and quicklime digestion and dust removal effect are poor, so as to ensure stability and efficient operation

Active Publication Date: 2016-08-10
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problem of quicklime digestion and dust removal in sintering and further improve the energy saving and emission reduction work in the sintering process, it is necessary to design quicklime digestion and dust collectors to solve the problem of poor effect of quicklime digestion and dust removal, and to solve the existing problem of quicklime digestion environmental pollution
[0010] The purpose of the present invention is to provide a high-efficiency quicklime digestion water bath dust collector and quicklime digestion dust removal sewage treatment method to solve the problem of poor effect of quicklime digestion and dust removal, and to solve the existing problem of quicklime digestion of a large amount of dust and flue gas environmental pollution, lime digestion and dust removal sewage The problem of environmental pollution and how to reuse the dust removal sewage

Method used

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  • Water bath deduster, dedusting method and quicklime slaking and dedusting device
  • Water bath deduster, dedusting method and quicklime slaking and dedusting device
  • Water bath deduster, dedusting method and quicklime slaking and dedusting device

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Embodiment approach

[0110] According to the second embodiment provided by the present invention, there is provided a method for using a water-bath dust collector or a method for removing dust using the above-mentioned water-bath dust collector, the method comprising the following steps:

[0111] (1) Store water in the dedusting pool through the water supply pipe Q201, adjust the water level regulating plate Q601, make the water level in the dedusting pool Q2 reach a predetermined value, and close the water supply pipe valve Q202;

[0112] (2) Dusty gas (such as dust and flue gas from the dust removal port of the quicklime digester) enters the dust collector Q1 from the middle of the dust collector housing Q3 through the dust removal pipe Q4 from top to bottom. The flow rate is adjusted by adjusting the water level adjustment device Q6 so that the dust removal pipe Q4 is inserted into a certain position in the dust removal pool Q2, and the end of the dust removal pipe Q4 inserted into the water is ...

Embodiment 1

[0135] A water bath dust collector, the dust collector Q1 includes:

[0136] Dust removal pool Q2;

[0137] The dust collector housing Q3 located above the dust removal pool Q2;

[0138] Dust removal pipe Q4,

[0139] One end of the dust removal pipeline Q4 is externally connected to the dust removal interface of the lime digester, and the other end passes through the dust collector housing Q3 from top to bottom and extends into the dust removal pool Q2 below the dust collector housing Q3. One end of the dust removal pipeline Q4 extending into the dust removal pool Q2 is provided with a submerged pipeline nozzle Q401. Wherein the end of the submerged pipeline nozzle Q401 is a mesh structure or a porous structure.

[0140] The dust removal pipe Q4 passes through the middle of the dust collector housing Q3.

[0141] The dust remover Q1 also includes: an overflow water sealing pool Q5 located on one side of the dust removal pool Q2. Between the dust removal pool Q2 and the o...

Embodiment 2

[0154] Embodiment 1 is repeated, except that an overflow pipe valve Q503 is provided on the overflow pipe Q502. The water supply pipe Q201 is provided with a water supply pipe valve Q202.

[0155] In this embodiment, the dust removal efficiency reaches 99.9%. The device of this embodiment can realize real-time control of the position of the water surface in the dust removal pool.

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Abstract

The invention provides a water bath deduster (Q1) which comprises a dedusting pool (Q2), a duduster shell (Q3) positioned below the dedusting pool (Q2) and a dedusting pipeline (Q4). One end of the dedusting pipeline (Q4) is externally connected with a dedusting port of a lime slaker while the other end of the same penetrates the deduster shell (Q3) from top to bottom and extends into the dedusting pool (Q2) below the deduster shell (Q3), a below-liquid pipeline nozzle (Q401) is arranged at the end, extending into the dedusting pool (Q2), of the dedusting pipeline (Q4), and the tail end of the below-liquid pipeline nozzle (Q401) is of a netty structure or a porous structure. The invention provides the efficient quicklime slaking water bath deduster and a quicklime slaking dedusting sewage treatment method and aims to solve the problem of poor quicklime slaking dedusting effect, the problem of environment pollution caused by a lot of dust and smoke generated during quicklime slaking, the problem of environment pollution caused by lime slaking dedusting sewage and the problem of how to recycle dedusting sewage.

Description

technical field [0001] The invention relates to the field of quicklime digestion and dust removal in iron and steel sintering plants, in particular to a high-efficiency quicklime digestion water-bath dust collector and quicklime digestion and dust removal sewage treatment method. Background technique [0002] With the development of modern industry and the improvement of people's quality of life, the requirements for environmental protection are getting higher and higher. Safe production and clean production have become the symbol of modern enterprise civilization. [0003] In the iron and steel metallurgical industry, it is generally necessary to sinter iron ore before entering the blast furnace for ironmaking, and quicklime plays an important role in the sintering process. First, it improves the granulation effect of the mixed material and improves the air permeability of the material layer. Compared with before digestion, the particle size of the mixture > 3mm has incr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D47/02B01D50/00C04B2/08
CPCB01D47/02B01D47/021B01D47/024B01D47/028C04B2/08B01D50/60
Inventor 周晓青邹忠明李铁辉夏春才李康苏道
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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