CN202460438U - Desulfurizing liquid oxidation and purification combined device - Google Patents
Desulfurizing liquid oxidation and purification combined device Download PDFInfo
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- CN202460438U CN202460438U CN2012200006220U CN201220000622U CN202460438U CN 202460438 U CN202460438 U CN 202460438U CN 2012200006220 U CN2012200006220 U CN 2012200006220U CN 201220000622 U CN201220000622 U CN 201220000622U CN 202460438 U CN202460438 U CN 202460438U
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- oxidation
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Abstract
The utility model relates to a desulfurizing liquid oxidation and purification combined device, comprising an oxidation pond, a liquid inlet pipe, an oxidation circulating pump, an oxidation ejector, an overflow pipe, a clear liquid recycling pump and a settling pond, wherein the oxidation pond below the liquid level is connected to the oxidation pond by virtue of a pipeline and the oxidation circulating pump, the oxidation ejector is arranged above the oxidation pond, the overflow pipe connected with the settling pond is arranged at the liquid level height of the oxidation pond, desulfurizing liquid enters into the oxidation pond by virtue of the liquid inlet pipe, and the desulfurizing liquid is pumped to the oxidation ejector by virtue of the oxidation circulating pump; and the settling pond is provided with the pipeline and the clear liquid recycling pump which are connected with the oxidation pond. The device disclosed by the utility model effectively reduces impurities in the desulfurizing liquid, is beneficial to oxidation of sulphite in the desulfurizing liquid and concentration and crystallization of a final product and has the characteristics of energy conservation and high efficiency.
Description
Technical field
The utility model relates to a kind of doctor solution removing impurities by oxidation combined unit, particularly with the removing impurities by oxidation combined unit of ammonia (ammoniacal liquor, carbon ammonium, liquefied ammonia) as absorbent.
Background technology
SO
2Be one of atmosphere major pollutants.Remove the SO in the flue gas
2Ammonia process, calcium method, magnesium method, two alkaline process and seawater method etc. are arranged, contact the SO in the flue gas through the solution that contains desulfurizing agent with flue gas recirculation
2By solution absorption, the desulfurizing agent solution that contains that in desulphurization system, circulates is called as doctor solution.Dust in the flue gas in the sweetening process, oil, and sulphur simple substance etc. most of with SO
2Together get into doctor solution.
The ammonia process of desulfurization absorbs the formation ammonium sulfite to airborne sulfur dioxide with ammonia, and ammonium sulfite is unstable, is prone to decompose, and needing through oxidation conversion is the ammonium sulfate of stable in properties.And the dust that contains in the doctor solution, greasy dirt and sulphur simple substance etc. can make the crystallization process of ammonium sulfate become difficult in doctor solution after the enrichment.A large amount of dusts desulphurization plant that also can wear and tear gets into the national standard that can cause its quality variation in the ammonium sulfate finished product even can not reach producing ammonium sulfate byproduct.
Be the oxidation and the removal of impurities associating that realize ammonium sulfite, domestic many researchs all are conceived to solve ammonium sulfite and strengthen oxidation technology.This will improve the oxidation air amount, increase the desulfurizer energy consumption.The utility model then provides a kind of sulfite oxidation and removal of impurities composite set; Effectively reduce the desulphurization system energy consumption; Can also remove dust, greasy dirt and sulphur simple substance in the doctor solution effectively, solve influence sulfite oxidation and ammonium sulfate finished product because of shade deviation, nitrogen content is low and the high problem that can not reach relevant national standard that causes of heavy metal.
Summary of the invention
The utility model purpose is: a kind of doctor solution oxidation and removal of impurities combined unit are provided; Can realize that through this device desulfurization produces removing of dust in oxidation and the doctor solution of sulphite, greasy dirt, sulphur simple substance; Optimized the crystallization condition of desulfurizing byproduct; Improved the quality of finished product, be successfully applied to for wet desulphurization in the industrial waste gas desulfurization of dust-laden, greasy dirt and sulphur simple substance such as catalytic cracking and created good condition.
The technical scheme of the utility model is: a kind of doctor solution removing impurities by oxidation combined unit; Comprise that oxidation pond 2, feed tube 1, oxidation cycle pump 3, oxidation injector 4, overflow pipe 6, clear liquid reclaim pump 8 and detritus tank 7; Be connected to the oxidation injector 4 that the oxidation pond top is provided with through pipeline and oxidation cycle pump 3 under the oxidation pond liquid level, the liquid level of oxidation pond is established overflow pipe 6 and is connect detritus tank 7, like Fig. 1; Doctor solution gets into oxidation pond 2 through feed tube 1, doctor solution through oxidation cycle pump 3 pumps to the oxidation injector.The foam that contains impurity flows into detritus tank 7 through overflow pipe 6.The oxidation pond bottom is provided with pipeline and connects clean desulfurization liquid pump 5, and the doctor solution after the removal of impurities returns the desulphurization circulating system or gets into the byproduct recovery process through pump 5.Detritus tank 7 is provided with pipeline and clear liquid recovery pump 8 connects oxidation pond, and the clear liquid in the detritus tank 7 reclaims pump 8 through clear liquid and returns oxidation pond.Lime-ash outlet 9 goes to handle the field.The feed tube 1 of pending doctor solution, oxidation pond 2, oxidation cycle pump 3, oxidation injector 4, clean desulfurization liquid pump 5, overflow pipe 6, detritus tank 7, clear liquid reclaim pump 8, lime-ash outlet 9, coagulant groove 10.
The utility model is provided with the coagulant groove as required, and coagulant adds the inlet of oxidation cycle pump 3 through proportioning device from the coagulant groove.
The solution of removing impurity is that flue gas desulfurization provides doctor solution of fine quality, for follow-up oxidizing and crystallizing and the byproduct of producing high-quality provide clean solution.
The beneficial effect of the utility model is: the utility model device effectively reduces the impurity in the doctor solution, helps the oxidation of the sulphite in the doctor solution and the condensing crystallizing of final products, has the characteristics of efficient energy-saving.The utility model device can also help oxidation, makes solution ammonium sulfate oxygenation efficiency improve 99%, and dust removal efficiency brings up to 95%.And make the ammonium sulfate of system's output high-quality.
Description of drawings
The structure chart of Fig. 1 oxidation dedusting combined purifying device.
The specific embodiment
Like Fig. 1, the feed tube 1 of pending doctor solution, oxidation pond 2, oxidation cycle pump 3, oxidation injector 4, clean desulfurization liquid pump 5, overflow pipe 6, detritus tank 7, clear liquid reclaim pump 8, lime-ash outlet 9, coagulant groove 10.Doctor solution gets into oxidation pond 2 through feed tube 1, doctor solution through oxidation cycle pump 3 pumps to the oxidation injector.The foam that contains impurity flows into detritus tank 7 through overflow pipe 6.The oxidation pond bottom is provided with pipeline and connects clean desulfurization liquid pump 5, and the doctor solution after the removal of impurities returns the desulphurization circulating system or gets into the byproduct recovery process through pump 5.Detritus tank 7 is provided with pipeline and clear liquid recovery pump 8 connects oxidation pond, and the clear liquid in the detritus tank 7 reclaims pump 8 through clear liquid and returns oxidation pond.Lime-ash outlet 9 goes to handle the field.
1, apparatus structure
1) oxidation injector
According to oxidation and design of removal of impurities load or selective oxidation injector, concrete load is got the big value among the two.The suction air volume of oxidation injector
The Nm of unit
3/ h
Wherein: m is an ammonium sulfite, units/h
N is the number that injector is set
K is the suction air volume correction coefficient, and scope is 0.2-10
2) oxidation cycle pump
Internal circulating load V
1=nV
i
Wherein: n is the number that injector is set; V
iBe single the required solution amount of injector;
All the other confirm its lift and necessary electromotor etc. according to setting height(from bottom), expulsion pressure and solution proportion etc. through the peroxidating injector.
3) oxidation pond, the size and the shape of the definite oxidation ponds such as requirement that separate with foam according to the installation requirement and the solution of oxidation injector.The oxidation pond height is generally 1m-10m.
4) detritus tank is according to the size of definite detritus tanks such as foam volume and storage time.
Embodiment:
Be used for year ammonia process of desulfurization engineering of the regeneration fume from catalytic cracking of 1,400,000 tons of residual oil of processing, its smoke treatment amount is 180000Nm
3/ h, SO in the flue gas
2Content is 2600mg/Nm
3, ash content 300mg/Nm
3The oxidation pond diameter is
high 6.6m.Equipment guarantee replacement oxidation pond, detritus tank, circulating pump and oxidation injector.Detritus tank specification 5000 * 4000 * 4500.
The device principal character:
1, oxidation pond
6 injectors are installed along the pond in week in top.Playpipe is below liquid level.Foam outlet is established downflow weir.
2, detritus tank
Be divided into two parts, intercommunicating pore is established in the bottom, weir.
The use result of the utility model: whole device can help oxidation, makes solution ammonium sulfate oxygenation efficiency 99%, dust removal efficiency 95%.
The desulfuration efficiency of supporting desulphurization system is 96.5%, SO in the flue gas behind the desulphurization denitration
2Content is 100mg/Nm
3, ammonia content is 4mg/Nm
3Year removes SO
27226t/a produces ammonium sulfate 15058t/a per year.N content >=21.0% in the product reaches the requirement of GB535-1995 certified products.
Claims (3)
1. doctor solution removing impurities by oxidation combined unit; It is characterized in that comprising that oxidation pond, feed tube, oxidation cycle pump, oxidation injector, overflow pipe, clear liquid reclaim pump and detritus tank; Be connected to oxidation pond through pipeline and oxidation cycle pump under the oxidation pond liquid level, the oxidation injector that the oxidation pond top is provided with, the liquid level of oxidation pond is provided with overflow pipe and connects detritus tank; Doctor solution gets into oxidation pond through feed tube, and doctor solution is through oxidation cycle pump to oxidation injector; Detritus tank is provided with pipeline and clear liquid recovery pump connects oxidation pond.
2. doctor solution removing impurities by oxidation combined unit according to claim 1 is characterized in that being provided with clean desulfurization liquid pump, and the oxidation pond bottom is provided with pipeline and connects clean desulfurization liquid pump.
3. doctor solution removing impurities by oxidation combined unit according to claim 1 and 2 is characterized in that being provided with the coagulant groove, and coagulant groove coagulant adds the inlet of oxidation cycle pump through proportioning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200006220U CN202460438U (en) | 2012-01-04 | 2012-01-04 | Desulfurizing liquid oxidation and purification combined device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200006220U CN202460438U (en) | 2012-01-04 | 2012-01-04 | Desulfurizing liquid oxidation and purification combined device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202460438U true CN202460438U (en) | 2012-10-03 |
Family
ID=46908639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200006220U Expired - Lifetime CN202460438U (en) | 2012-01-04 | 2012-01-04 | Desulfurizing liquid oxidation and purification combined device |
Country Status (1)
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US20190001267A1 (en) | 2017-07-03 | 2019-01-03 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10207220B2 (en) | 2017-03-15 | 2019-02-19 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10953365B2 (en) | 2018-07-20 | 2021-03-23 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11027234B2 (en) | 2018-04-13 | 2021-06-08 | Jiangnan Environmental Protection Group Inc. | Oxidization of ammonia desulfurization solution |
| US11224838B2 (en) | 2019-12-26 | 2022-01-18 | Jiangnan Environmental Protection Group Inc. | Controlling aerosol production during absorption in ammonia-based desulfurization |
-
2012
- 2012-01-04 CN CN2012200006220U patent/CN202460438U/en not_active Expired - Lifetime
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| US10675584B2 (en) | 2017-03-15 | 2020-06-09 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10413864B2 (en) | 2017-03-15 | 2019-09-17 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10406477B2 (en) | 2017-03-15 | 2019-09-10 | Jiangnan Environmental Protection Group Inc. | Method and apparatus for removing sulfur oxides from gas |
| US10213739B2 (en) | 2017-05-25 | 2019-02-26 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10413865B2 (en) | 2017-05-25 | 2019-09-17 | Jiangnan Enviromental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10092877B1 (en) | 2017-05-25 | 2018-10-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10016721B1 (en) | 2017-05-25 | 2018-07-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desufurization process and apparatus |
| US10343110B2 (en) | 2017-05-25 | 2019-07-09 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10561982B2 (en) | 2017-05-25 | 2020-02-18 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10471383B2 (en) | 2017-05-25 | 2019-11-12 | Jiangnan Environmental Protection Group Inc. | Dust removal and desulfurization of FCC exhaust gas |
| US10399033B2 (en) | 2017-05-25 | 2019-09-03 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10406478B2 (en) | 2017-05-25 | 2019-09-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-based desulfurization process and apparatus |
| US10583386B2 (en) | 2017-06-14 | 2020-03-10 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10159929B1 (en) | 2017-06-14 | 2018-12-25 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10099170B1 (en) | 2017-06-14 | 2018-10-16 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US10589212B2 (en) | 2017-06-14 | 2020-03-17 | Jiangnan Environmental Protection Group Inc. | Ammonia-adding system for ammonia-based desulfurization device |
| US20190001267A1 (en) | 2017-07-03 | 2019-01-03 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10421040B2 (en) | 2017-07-03 | 2019-09-24 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10427097B2 (en) | 2017-07-03 | 2019-10-01 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10618001B2 (en) | 2017-07-03 | 2020-04-14 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10556205B2 (en) | 2017-07-03 | 2020-02-11 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10561984B2 (en) | 2017-07-03 | 2020-02-18 | Jiangnan Environmental Protection Group Inc. | Desulfurization absorption tower |
| US10449488B2 (en) | 2017-09-07 | 2019-10-22 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10357741B2 (en) | 2017-09-07 | 2019-07-23 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10369517B2 (en) | 2017-09-07 | 2019-08-06 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US10112145B1 (en) | 2017-09-07 | 2018-10-30 | Jiangnan Environmental Protection Group Inc. | Method for controlling aerosol production during absorption in ammonia desulfurization |
| US11027234B2 (en) | 2018-04-13 | 2021-06-08 | Jiangnan Environmental Protection Group Inc. | Oxidization of ammonia desulfurization solution |
| US10953365B2 (en) | 2018-07-20 | 2021-03-23 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11529584B2 (en) | 2018-07-20 | 2022-12-20 | Jiangnan Environmental Protection Group Inc. | Acid gas treatment |
| US11224838B2 (en) | 2019-12-26 | 2022-01-18 | Jiangnan Environmental Protection Group Inc. | Controlling aerosol production during absorption in ammonia-based desulfurization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 211100, No. 29, Su Yuan Avenue, Jiangning District, Jiangsu, Nanjing Patentee after: Jiangsu New Century Jiangnan Environmental Protection Co., Ltd. Address before: 211100 No. 108, Tianyuan Road, Jiangning national hi tech Development Zone, Nanjing, Jiangsu Patentee before: Jiangsu New Century Jiangnan Environmental Protection Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |