CN2810730Y - Circulating water treatment device for wet-method fume desulfurization - Google Patents
Circulating water treatment device for wet-method fume desulfurization Download PDFInfo
- Publication number
- CN2810730Y CN2810730Y CN 200520200586 CN200520200586U CN2810730Y CN 2810730 Y CN2810730 Y CN 2810730Y CN 200520200586 CN200520200586 CN 200520200586 CN 200520200586 U CN200520200586 U CN 200520200586U CN 2810730 Y CN2810730 Y CN 2810730Y
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- pond
- sedimentation basin
- circulating water
- aeration
- treatment device
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Abstract
The utility model relates to a circulating water treatment device for wet-method fume desulfurization, which comprises a circulating pond connected with a waste water running pipeline. The utility model is characterized in that the circulating pond comprises a reaction pond, an aeration pond, a settling pond and a clean water pond which are communicated with each other in turn. A waste water inlet, a desulphurizing agent inlet and an agitator are arranged in the reaction pond. An aeration pipeline connected with a fan is arranged in the aeration pond. The outlet of the aeration pipeline extends to the underside of the liquid surface of the aeration pond. A clapboard which is lower than the liquid surface is arranged between the settling pond and the clean water pond in order to accumulate sediments in the settling pond. A desulfurizing dreg sucking pump is arranged in the settling pond, and the inlet of the desulfurizing dreg sucking pump is connected with the bottom of the settling pond. The device is not only favorable for treating waste water after desulfurization to make water used circularly, but also can prevent the phenomena of sulfite fouling, clogging, etc. which frequently happen during traditional water treating process.
Description
Technical field
The utility model belongs to environmental protection and resource technical field, relates to a kind of wet process of FGD circulating water treatment device that is used for prevention and control of air pollution.
Background technology
Wet process of FGD in the past all relates to the circulating water treatment problem after the desulfurization, general medium and small boiler and industrial furnace wet process of FGD, mostly adopt tower outer circulation water system, and equipment such as circulating water pool, seperator of ash and water are adopted in the desulphurizing and dust-removing integral circulating water treatment, and drag for slag with grab bucket.In independent wet desulfurization system, circulating water treatment has adopted equipment such as circulating water pool, seperator of ash and water to handle, and desulfurization slag adopts the mode of abandoning processing.
No matter be above-mentioned which kind of mode, the mode of aeration oxidation is not all adopted in existing circulating water treatment, also contain sulphite in the water after the processing, thereby stop up because of sulphite causes system's fouling, thereby influence system's operate as normal, increase system overhaul time follow-up recycling in the process easily.
Summary of the invention
The purpose of this utility model is to provide a kind of wet process of FGD circulating water treatment device, this device not only helps handling waste water after the desulfurization so that it recycles, and can prevent in the past the normal phenomenons such as sulphite fouling obstruction that occur in the water treatment procedure.
The utility model is to constitute like this, it comprises the circulating water pool that is connected with the waste water conveyance conduit, it is characterized in that: described circulating water pool comprises the reaction tank that is connected successively, the aeration tank, sedimentation basin and clear water reserviors, be provided with water intake in the described reaction tank, desulfurizing agent input port and mixer, be provided with the aerated conduit that is connected with air blast in the described aeration tank, the delivery outlet of aerated conduit extends under the liquid level of aeration tank, be provided with between described sedimentation basin and the clear water reserviors be lower than liquid level dividing plate so that at sedimentation basin inner accumulated sediment, also be provided with the desulfurization slag suction pump in the described sedimentation basin, the input port of desulfurization slag suction pump is connected to the sedimentation basin bottom.
Operation principle of the present utility model is described as follows: the desulfurization wastewater that come out from desulfurizing tower (1) enters the reaction tank of circulating water pool from water intake, and desulfurizing agents such as lime are from desulfurizing agent input port input reaction tank, both abundant hybrid reactions under the stirring action of mixer generate sulphite such as calcium sulfite; (2) reacted liquid enters the aeration tank, because aerated conduit is imported a large amount of oxygen in liquid under the effect of air blast, makes sulphite be oxidized to sulfate; (3) liquid after the oxidation enters sedimentation basin, makes sulfate such as calcium sulfate or magnesium sulfate at sedimentation basin bottom crystalline deposit, and by desulfurization slag suction pump sucking-off, and clear liquid flows in the clear water reserviors so that follow-up recycling.
Than prior art, the utility model not only helps handling waste water after the desulfurization so that its follow-up recycling, and the mode by the aeration oxidation, make the sulphite that produces in the processing desulfurization wastewater process be oxidized to sulfate, so that crystalline deposit is extracted out, thereby prevent from follow-up recycling system's fouling to be stopped up because of containing sulphite in the waste water, influence the operate as normal of system.In addition, can also fully utilize through sulfate such as the calcium sulfate after crystallization, precipitation, the filtration treatment, magnesium sulfate.
Description of drawings
Fig. 1 is the utility model embodiment organigram.
The specific embodiment
The utility model specific embodiment comprises the circulating water pool that is connected with the waste water conveyance conduit, it is characterized in that: described circulating water pool comprises the reaction tank 1 that is connected successively, aeration tank 2, sedimentation basin 3 and clear water reserviors 4, be provided with water intake 5 in the described reaction tank, desulfurizing agent input port 6 and mixer 7, be provided with the aerated conduit 9 that is connected with air blast 8 in the described aeration tank, the delivery outlet of aerated conduit extends under the liquid level of aeration tank, be provided with between described sedimentation basin and the clear water reserviors be lower than liquid level dividing plate 10 so that at sedimentation basin inner accumulated sediment, also be provided with desulfurization slag suction pump 11 in the described sedimentation basin, the input port of desulfurization slag suction pump is connected to the sedimentation basin bottom.When adopting the air blast aeration, to 1 mole of oxygen configuration air blast, recirculated water total residence time in each pond is 60-90min by 1 mole of sulfur dioxide, and be allocated as follows: reaction tank stops 10-15min, the aeration tank stops 10-15min, and sedimentation basin stops 20-30min, and clear water reserviors stop 20-30min.During use, by the monitoring of PH, performance that can the knowing reaction pool chemical reaction so that quantitatively add the desulphurization reaction agent, thereby is saved desulfurizing agent, reduces desulphurization cost.
For the ease of handling the sediment that the desulfurization slag suction pump is extracted out, the delivery outlet of above-mentioned desulfurization slag suction pump is provided with plate and frame filter press 12, and described plate and frame filter press is provided with the clear water return duct 13 that is connected to sedimentation basin.During use, sediment is pushed so that Separation of Solid and Liquid by plate and frame filter press, the solid after the separation can utilize or abandon, and further recycles and liquid is back to sedimentation basin by the clear water return duct.
For the ease of the liquid after handling in the clear water reserviors is extracted out to recycle, be provided with suction pump 14 in the above-mentioned clear water reserviors.
The utility model not only helps handling waste water after the desulfurization so that recycle, and can prevent from follow-up recycling system's fouling to be stopped up because of containing sulphite in the waste water, thereby influences the operate as normal of system.This device is applicable to the processing of lime stone, lime, two alkaline process, magnesium oxide method flue gas desulfurization recirculated water, has bigger application value.
Claims (3)
1. wet process of FGD circulating water treatment device, comprise the circulating water pool that is connected with the waste water conveyance conduit, it is characterized in that: described circulating water pool comprises the reaction tank that is connected successively, the aeration tank, sedimentation basin and clear water reserviors, be provided with water intake in the described reaction tank, desulfurizing agent input port and mixer, be provided with the aerated conduit that is connected with air blast in the described aeration tank, the delivery outlet of aerated conduit extends under the liquid level of aeration tank, be provided with between described sedimentation basin and the clear water reserviors be lower than liquid level dividing plate so that at sedimentation basin inner accumulated sediment, also be provided with the desulfurization slag suction pump in the described sedimentation basin, the input port of desulfurization slag suction pump is connected to the sedimentation basin bottom.
2. wet process of FGD circulating water treatment device according to claim 1 is characterized in that: the delivery outlet of described desulfurization slag suction pump is provided with plate and frame filter press, and described plate and frame filter press is provided with the clear water return duct that is connected to sedimentation basin.
3. wet process of FGD circulating water treatment device according to claim 1 and 2 is characterized in that: be provided with suction pump in the described clear water reserviors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200586 CN2810730Y (en) | 2005-08-11 | 2005-08-11 | Circulating water treatment device for wet-method fume desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520200586 CN2810730Y (en) | 2005-08-11 | 2005-08-11 | Circulating water treatment device for wet-method fume desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2810730Y true CN2810730Y (en) | 2006-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520200586 Expired - Fee Related CN2810730Y (en) | 2005-08-11 | 2005-08-11 | Circulating water treatment device for wet-method fume desulfurization |
Country Status (1)
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| CN (1) | CN2810730Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698545B (en) * | 2009-11-04 | 2012-05-30 | 兖矿集团有限公司 | Desulfurated circulating water purification treatment equipment and method |
| CN103830982A (en) * | 2013-12-26 | 2014-06-04 | 李佩强 | Wet extruding diffusion washing, SO2 degrading and dedusting apparatus |
| CN105036382A (en) * | 2015-06-08 | 2015-11-11 | 德清华宇链传动有限公司 | Industrial water recycling device |
| CN107522297A (en) * | 2017-09-15 | 2017-12-29 | 北京高能时代环境技术股份有限公司 | A kind of system that desulfurization wastewater softening is carried out using flue gas |
| CN108328683A (en) * | 2017-01-19 | 2018-07-27 | 四川苏源环保工程有限公司 | Waste water of heat-engine plant condensing crystallizing Zero discharging system |
| CN108821499A (en) * | 2018-05-29 | 2018-11-16 | 张罗悦 | A kind of constructing tunnel wastewater circulation device |
-
2005
- 2005-08-11 CN CN 200520200586 patent/CN2810730Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101698545B (en) * | 2009-11-04 | 2012-05-30 | 兖矿集团有限公司 | Desulfurated circulating water purification treatment equipment and method |
| CN103830982A (en) * | 2013-12-26 | 2014-06-04 | 李佩强 | Wet extruding diffusion washing, SO2 degrading and dedusting apparatus |
| CN105036382A (en) * | 2015-06-08 | 2015-11-11 | 德清华宇链传动有限公司 | Industrial water recycling device |
| CN108328683A (en) * | 2017-01-19 | 2018-07-27 | 四川苏源环保工程有限公司 | Waste water of heat-engine plant condensing crystallizing Zero discharging system |
| CN107522297A (en) * | 2017-09-15 | 2017-12-29 | 北京高能时代环境技术股份有限公司 | A kind of system that desulfurization wastewater softening is carried out using flue gas |
| CN108821499A (en) * | 2018-05-29 | 2018-11-16 | 张罗悦 | A kind of constructing tunnel wastewater circulation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060830 Termination date: 20090911 |