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Baffling desulfurizing liquid circulating device in flue gas desulfurization system and application method

A desulfurization system and circulation device technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of large floor space and high investment costs, prevent secondary pollution, solve high investment costs, and reduce retention the effect of time

Active Publication Date: 2017-10-20
红河绿地环保科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the present invention proposes a baffle desulfurization liquid circulation device and a method of use in the flue gas desulfurization system to solve the problems of high investment cost and large floor area in the separate construction of desulfurization facilities; Solid separation and recycling of waste liquid to avoid secondary pollution caused by waste liquid

Method used

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  • Baffling desulfurizing liquid circulating device in flue gas desulfurization system and application method
  • Baffling desulfurizing liquid circulating device in flue gas desulfurization system and application method
  • Baffling desulfurizing liquid circulating device in flue gas desulfurization system and application method

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Embodiment 1

[0034] Using lime water as SO 2 The desulfurizing agent is the alkaline desulfurization mother liquor, the initial pH value of the alkaline desulfurization mother liquor is adjusted to 9.8, and the desulfurization process controls the internal temperature of the desulfurization device 5 to be 25°C, containing SO 2 The flue gas is sent into the desulfurization device 5 from the lower part of the desulfurization device 5 through the intake pump, the intake flow rate is 5L / min, and the SO in the flue gas 2 The concentration is 1200mg / m 3 , O 2 The content is 6%. The alkaline desulfurization mother liquor is prepared by the pulping tank, and then pumped into the baffle circulation pool 1 through the booster pump, and sent to the top of the desulfurization device 5 by the circulation pump 5 for spraying, and the SO in the flue gas 2 After the countercurrent contact reaction in the desulfurization device 5, it returns to the circulation tank 10, where it is mixed with the origina...

Embodiment 2

[0036] Using lime water as SO 2 The desulfurizer is the alkaline desulfurization mother liquor, the initial pH value of the alkaline desulfurization mother liquor is adjusted to 8.8, the desulfurization process controls the internal temperature of the desulfurization device 5 to be 25 ° C, and the SO 2 The flue gas is sent into the desulfurization device 5 from the lower part of the desulfurization device 5 through the intake pump, the intake flow rate is 5L / min, and the SO in the flue gas 2 The concentration is 1200mg / m 3 , O 2 The content is 6%. The alkaline desulfurization mother liquid enters the circulation tank 10 from the alkaline desulfurization liquid inlet 13, and is sent to the top of the desulfurization device 2 by the circulation pump 3 for spraying, and the SO in the flue gas 2 After the countercurrent contact reaction in the desulfurization device 2, it returns to the circulation tank 10, and is mixed with the original desulfurization liquid to form a desulfu...

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Abstract

The invention relates to a baffling desulfurizing liquid circulating device in a flue gas desulfurization system and an application method and belongs to the technical field of industrial waste gas purification. The baffling desulfurizing liquid circulating device comprises a baffling circulating tank, an oxidizing fan, a circulating pump and a filter pressing device. The baffling desulfurizing liquid circulating device has the advantages that circulating self-flow of liquid in the baffling circulating tank is achieved by baffle plates, a stirring device is not needed, and accordingly unnecessary retention time is reduced; the baffling desulfurizing liquid circulating device is simple to operate, relatively low in process operation cost, and capable of effectively solve the problems that desulfurization facilities which are built separately are high in investment cost, large in floor space and the like; waste liquid can be recycled, secondary pollution can be prevented effectively, and desulfurization efficiency can reach up to above 96.0%.

Description

technical field [0001] The invention belongs to the technical field of industrial waste gas purification, and in particular relates to a baffle desulfurization liquid circulation device in a flue gas desulfurization system and a use method thereof. Background technique [0002] Sulfur dioxide (SO 2 ) is a colorless gas with a strong pungent odor, and is currently the main air pollutant with a large emission. In order to effectively prevent environmental pollution problems, the SO2 2 Effective purification of flue gas is imperative. The device widely used in the current desulfurization system is the desulfurization tower, whose working principle is to use the desulfurization absorbent to achieve the effect of desulfurization through chemical reaction. The desulfurizer has surface activity, catalyzes oxidation, and promotes sulfur dioxide SO 2 The direct reaction of accelerated calcium carbonate CaCO 3 The dissolution of calcium sulfite CaSO 3 Rapidly oxidized to calcium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/50B01D53/96
CPCB01D53/502B01D53/504B01D53/96B01D2251/404B01D2251/606B01D2258/0283
Inventor 朱永强张梦影谢容生吴开武韦加柱谭志敏杨鼐张福靖刘洪朱绍学
Owner 红河绿地环保科技发展有限公司
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