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Underground high-sulfur mine air outlet shaft sulfur dioxide treatment method and device

A technology of sulfur dioxide and wind wells, applied in chemical instruments and methods, separation methods, and separation of dispersed particles, etc., can solve the problems of unsuitability to the actual situation of mine production, high resource consumption, and difficult implementation, and achieve high-efficiency desulfurization and dust removal, The process flow is reasonable and the effect of reducing system suspension and maintenance

Inactive Publication Date: 2021-08-06
TONGLING NON FERROUS METAL GROUP CORP
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for treating sulfur dioxide in the air shaft of an underground high-sulfur mine, so as to solve the problem that the existing treatment method proposed in the background technology consumes a lot of resources, is difficult to implement, and has high investment costs, which is not suitable for mine production. factual issues

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  • Underground high-sulfur mine air outlet shaft sulfur dioxide treatment method and device
  • Underground high-sulfur mine air outlet shaft sulfur dioxide treatment method and device
  • Underground high-sulfur mine air outlet shaft sulfur dioxide treatment method and device

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Embodiment

[0050] Example: The detection results of a west wind well in a high-sulfur copper mine show that the volume concentration of sulfur dioxide is 0.005%, and the air output of the west wind well is 100m3 / s, so the mass concentration of sulfur dioxide is about 13g / s.

[0051] According to above-mentioned detection result, calculate and use sodium carbonate lye amount:

[0052] Sodium carbonate=106*13 / 64=21.5g / s, that is, the hourly dosage is 77.4kg / h;

[0053] Water consumption: estimated about 31.5m 3 / h.

[0054] Sodium carbonate lye preparation system 1 is selected in the abandoned prospecting roadway 2 of No. 23 exploration line in the 568-meter middle section of the mine. The prospecting roadway is 3.8 meters wide and 3.4 meters high. The lye spray system 3 is installed on No. 23 to No. 24 exploration lines In the straight main air return roadway 4, see Figure 4 .

[0055] In this example, if figure 1 As shown, between the preparation pool 11 and the storage pool 14, a ...

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Abstract

The invention discloses an underground high-sulfur mine air outlet shaft sulfur dioxide treatment method which comprises the following steps: S1, detecting the total SO2 discharge amount of an air outlet shaft in the peak period, and determining the amount of neutralizing sodium carbonate and the water demand; s2, feeding the raw materials sodium carbonate and water into a sodium carbonate alkali liquor preparation system to obtain alkali liquor for neutralization; s3, conveying the alkali liquor to an alkali liquor spraying system, and making the return air flow subjected to desulfurization purification treatment.The invention further discloses an underground high-sulfur mine air outlet shaft sulfur dioxide treatment device which comprises a sodium carbonate alkali liquor preparation system which comprises a preparation pool and a storage pool; and an alkali liquor spraying system which comprises a first fog screen, a second fog screen and a third fog screen. According to the underground high-sulfur mine air outlet shaft sulfur dioxide treatment method and device, the technical design of integrating smoke abatement, desulfurization and dust removal is achieved at the same time, the structure is simple and compact, the technological process is reasonable, and the interior is not prone to scaling and blocking.

Description

technical field [0001] The invention relates to the related technical fields of air pollution control and environmental protection, in particular to a method and device for controlling sulfur dioxide in an underground high-sulfur mine outlet shaft. Background technique [0002] SO 2 It is an acidic gas with a pungent smell, easily soluble in water, SO 2 After being inhaled into the human body, it will irritate the mucous membrane of the respiratory tract. When inhaled in excess of a certain amount, it will cause serious damage to various organs of the body, and even endanger life; SO 2 A large amount of emissions into the atmosphere will cause great harm to plants and the ecological environment. SO 2 After being dissolved in water, it falls with the rainfall, causing damage, scorching and even death of plant epidermis, reducing soil fertility and causing the death of fish and other organisms in rivers and lakes. [0003] The ore bodies of high-sulfur mines have high sulfu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50B01D53/78B01D53/30
CPCB01D53/502B01D53/78B01D53/30B01D2251/304B01D2251/606
Inventor 袁世伦程战明徐刚陈金平刘文胜童祯李品杰刘守安聂进学
Owner TONGLING NON FERROUS METAL GROUP CORP
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