CN203043828U - Sulfur-containing tail gas washing device - Google Patents
Sulfur-containing tail gas washing device Download PDFInfo
- Publication number
- CN203043828U CN203043828U CN 201320013788 CN201320013788U CN203043828U CN 203043828 U CN203043828 U CN 203043828U CN 201320013788 CN201320013788 CN 201320013788 CN 201320013788 U CN201320013788 U CN 201320013788U CN 203043828 U CN203043828 U CN 203043828U
- Authority
- CN
- China
- Prior art keywords
- outlet
- tail gas
- sulfur
- pump
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a sulfur-containing tail gas washing device. The sulfur-containing tail gas washing device mainly consists of a water storage slot, a water supply pump, a washing tower, a circulating washing pump, a centrifugal machine, a sulfuric acid collecting slot, a heat exchanger, a circulating water slot, a circulating water pump, a cooling tower and a sulfur-containing tail gas chimney, which are communicated with each other, wherein a water outlet tube on the bottom of the water storage slot is communicated with an inlet of the water supply pump; an outlet of the water supply pump is communicated with a charging hole in the middle part of the washing tower; a circulation liquid outlet on the bottom of the washing tower is communicated with an inlet of the circulating washing pump; an outlet of the circulating washing pump is communicated with a circulation liquid inlet of the washing tower; an outlet tube of the circulating washing tower is communicated with the charging hole of the centrifugal machine; and a liquid-phase outlet of the centrifugal machine is communicated with a liquid inlet on the top of the sulfuric acid collecting slot. The sulfur-containing tail gas washing device is high in washing efficiency, low in washing cost, good in treatment effect of the sulfur-containing tail gas, capable of directly converting sulfur dioxide into sulfuric acid after the treatment, free of by-products and good in economical benefits and social benefits.
Description
Technical field
The utility model belongs to the exhaust gas processing device technical field, relates to a kind of sulfur-bearing washing tail gas device.
Background technology
In the prior art, gas washing in SA production adopts double-absorption technology mostly.Content of sulfur dioxide height in the tail gas of this technology, normal value is at 700～960mg/m
3, environmental pollution is serious.Although most of enterprise carries out according to " atmosphere pollution comprehensive discharge standard " GB16297-1996 the emission standards for sulfur dioxide of sulfuric acid tail gas, but, along with the requirement to energy-saving and emission-reduction in country " the 12 " planning increases, every have the enterprise of sulfur-bearing gas emission device to do further to cut down to the sulfur dioxide in the tail gas.For this reason, national environmental protection portion and quality supervision and test quarantine general bureau unites and has promulgated " sulfuric acid industry emission standard " GB26132-2010, and come into effect on March 1st, 2011, this standard is reduced to 400mg/m with the sulfur dioxide effluent standard amount in the sulfuric acid tail gas
3Along with the execution of new standard, the exhaust emissions of a lot of enterprises obviously exceeds standard.In order to reach discharge standard, it is extremely urgent to work out a kind of method that can efficiently handle sulfur-bearing tail gas.
Processing to sulfuric acid tail gas at present is divided into desulfurization by dry method and wet desulphurization technology two big classes.Wherein, the desulfurization by dry method desulfurization degree is low, has only about 70%, and therefore, what be widely used in the two big class processing methods is the wet desulphurization technology.What adopt at most in the wet desulphurization technology is that ammonia is washed treatment process, this technology is to generate ammonium sulfite according to ammonia spirit and sulfur dioxide reaction, generate ammonium sulfate to the further bubbling air oxidation of ammonium sulfite again, ammonium sulfate through the concentration crystallization as production marketing.Yet also there are some problems in the wet desulphurization technology, and namely processing cost height, by-product recovery difficult treatment and economic worth are little, such as, the accessory substance gypsum that the limestone/gypsum method is handled is difficult to further processing, and floor space is big; Portion of product may cause secondary pollution to environment, and ammonia is washed treatment technology and had a certain amount of ammonia nitrogen mixture enter atmosphere and cause atmosphere pollution in washing process; The large amount of sewage that the limestone/gypsum method produces is difficult to digestion, as not causing pollution of waterhead to sewage disposal.
The utility model content
For addressing the above problem, the utility model provides a kind of sulfur-bearing washing tail gas device, after this device washing, makes the sulfur dioxide concentration in the tail gas low, and the iodine that adds when washing can reclaim and recycle simultaneously, greatly reduces the washing cost.
The utility model is achieved by following technical solution.
A kind of sulfur-bearing washing tail gas device, mainly by aqua storage tank, supply-water pump, scrubbing tower, the circulation cleaning pump, centrifuge, the sulfuric acid feeder, heat exchanger, circulating water chennel, water circulating pump, cooling tower, the sulfur-bearing tail gas funnel composition that is interconnected, the outlet pipe of described aqua storage tank bottom is connected with the import of supply-water pump, the water supply delivery side of pump is connected with the charging aperture at scrubbing tower middle part, the circulation fluid outlet of wash tower bottoms is connected with the import of circulation cleaning pump, the circulation cleaning delivery side of pump is connected with the circulation fluid import of scrubbing tower, described circulation cleaning delivery side of pump pipe is connected with the charging aperture of centrifuge, and the liquid phase outlet of centrifuge is connected with the inlet at sulfuric acid feeder top.
Be provided with between described supply-water pump and the scrubbing tower and join iodine groove and iodine storage tank, the water inlet of joining iodine groove top is connected with the water supply delivery side of pump, the discharging opening of iodine storage tank bottom is connected with the charging aperture of joining iodine groove top, and the discharging opening of joining the iodine trench bottom is connected with the charging aperture at scrubbing tower middle part.
Be provided with oxidation between described circulation cleaning pump and the centrifuge and analyse the iodine groove, the charging aperture that iodine groove top is analysed in oxidation is connected with circulation cleaning delivery side of pump pipe, and the outlet that the iodine trench bottom is analysed in oxidation is connected with the charging aperture of centrifuge.
The gaseous phase outlet of described heat exchanger is connected with the air inlet of scrubbing tower, the gas phase import of heat exchanger is connected with the outlet of sulfur-bearing tail gas funnel, the water inlet of heat exchanger is connected with the delivery port of cooling tower, the delivery port of heat exchanger is connected with the water inlet at circulating water chennel top, the delivery port of circulating water chennel bottom is connected with the import of water circulating pump, and the recirculated water delivery side of pump is connected with the water inlet on cooling tower top.
Described scrubbing tower middle and upper part is provided with two-layer annular washing nozzle, and shower nozzle quantity and big I are determined according to the size of tower.
The top of described scrubbing tower is provided with electrostatic precipitator and is connected, and the outlet of electrostatic precipitator is communicated with tail gas funnel.
Described scrubbing tower middle part also is provided with the hydrogen peroxide import, and the hydrogen peroxide import is connected with the dioxygen water pump, and the import of dioxygen water pump is connected with the hydrogen peroxide storage tank.
The solid phase outlet of centrifuge is connected with the iodine accumulator tank.
The beneficial effects of the utility model are:
Compared with prior art, adopt wash mill detersive efficiency height described in the utility model, the washing cost is low, and is good to the treatment effect of sulfur-bearing tail gas, is sulfuric acid with Sulphur Dioxide directly after the processing, and no byproduct has good economic benefits and social benefit.After device washing described in the utility model, make the sulfur dioxide concentration in the tail gas low, can reach 5mg/m
3The iodine that adds when washing can reclaim and recycle, and greatly reduces the washing cost; The dilute sulfuric acid that Sulphur Dioxide generates behind the washing tail gas can be used for regulating sulfuric acid concentration, or directly is used for phosphoric acid production to be pumped to the phosphoric acid extraction system, has avoided the handling problem of accessory substance, has realized clean cycle production.Join iodine groove, iodine storage tank and oxidation by setting and analyse the iodine groove, utilize the reaction in the system that water exists of elemental iodine and sulfur dioxide to generate sulfuric acid; The hydroiodic acid that utilizes iodine to generate when reaction increases the solubility of iodine in water greatly, makes that the assimilation effect when washing is better; By hydrogen peroxide storage tank and dioxygen water pump are set, utilize hydrogen peroxide from the mixture of sulfuric acid and hydroiodic acid, the iodine oxidation to be generated iodine, make the recycle and reuse of iodine energy.
Description of drawings
Fig. 1 is the structural representation of the utility model sulfur-bearing washing tail gas device.
Among the figure: the 1-aqua storage tank, 2-supply-water pump, 3-are joined the iodine groove, 4-iodine storage tank, 5-scrubbing tower, 6-circulation cleaning pump, the iodine groove is analysed in the 7-oxidation, 8-hydrogen peroxide storage tank, 9-dioxygen water pump, the 10-centrifuge, 11-sulfuric acid feeder, 12-iodine accumulator tank, the 13-heat exchanger, 14-circulating water chennel, 15-water circulating pump, the 16-cooling tower, 17-sulfur-bearing tail gas funnel, 18-electrostatic precipitator.
The specific embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing, but that claimed scope is not limited to is described.
As shown in Figure 1, a kind of sulfur-bearing washing tail gas device described in the utility model mainly is interconnected and is formed by aqua storage tank 1, supply-water pump 2, scrubbing tower 5, circulation cleaning pump 6, centrifuge 10, sulfuric acid feeder 11, heat exchanger 13, circulating water chennel 14, water circulating pump 15, cooling tower 16, sulfur-bearing tail gas funnel 17.The outlet pipe of described aqua storage tank 1 bottom is connected with the import of supply-water pump 2, the outlet of supply-water pump 2 is connected with the charging aperture at scrubbing tower 5 middle parts, the circulation fluid outlet of scrubbing tower 5 bottoms is connected with the import of circulation cleaning pump 6, the outlet of circulation cleaning pump 6 is connected with the circulation fluid import of scrubbing tower 5, the outlet of described circulation cleaning pump 6 is connected with the charging aperture of centrifuge 10, and the liquid phase outlet of centrifuge 10 is connected with the inlet at sulfuric acid feeder 11 tops.
Be provided with between described supply-water pump 2 and the scrubbing tower 5 and join iodine groove 3 and iodine storage tank 4, the water inlet of joining iodine groove 3 tops is connected with the outlet of supply-water pump 2, the discharging opening of iodine storage tank 4 bottoms is connected with the charging aperture of joining iodine groove 3 tops, and the discharging opening of joining iodine groove 3 bottoms is connected with the charging aperture at scrubbing tower 5 middle parts.
Be provided with oxidation between described circulation cleaning pump 6 and the centrifuge 10 and analyse iodine groove 7, the charging aperture that iodine groove 7 tops are analysed in oxidation is connected with the outlet of circulation cleaning pump 6, and the outlet that iodine groove 7 bottoms are analysed in oxidation is connected with the charging aperture of centrifuge 10.
The gaseous phase outlet of described heat exchanger 13 is connected with the air inlet of scrubbing tower 5, the gas phase import of heat exchanger 13 is connected with the outlet of sulfur-bearing tail gas funnel 17, the water inlet of heat exchanger 13 is connected with the delivery port of cooling tower 16, the delivery port of heat exchanger 13 is connected with the water inlet at circulating water chennel 14 tops, the delivery port of circulating water chennel 14 bottoms is connected with the import of water circulating pump 15, and the outlet of water circulating pump 15 is connected with the water inlet on cooling tower 16 tops.
Described scrubbing tower 5 middle and upper parts are provided with two-layer annular washing nozzle, and shower nozzle quantity and big I are determined according to the size of tower.
The top of described scrubbing tower 5 is provided with electrostatic precipitator 18 and is connected, and the outlet of electrostatic precipitator 18 is communicated with tail gas funnel.
The middle part of described scrubbing tower 5 also is provided with the hydrogen peroxide import, and the hydrogen peroxide import is connected with dioxygen water pump 9, and the import of dioxygen water pump 9 is connected with hydrogen peroxide storage tank 8.
Washing principle of the present utility model is: energy fast reaction in the system that water exists generates the principle of hydroiodic acid and sulfuric acid according to iodine and sulfur dioxide gas, be added to the water iodine is levigate, under the effect of pump, squeeze in the scrubbing tower and the sulfur dioxide gas counter current contacting, generate rapidly hydroiodic acid and dilute sulfuric acid, add hydrogen peroxide in the washing system simultaneously and make iodine oxidation from mixed solution come out to realize circulation cleaning.The mixed liquor that will contain iodine, dilute sulfuric acid and a small amount of hydroiodic acid when dilute sulfuric acid reaches finite concentration is again delivered in the regeneration tank, adds the oxidant hydrogen peroxide of metering, makes iodine oxidized fully come out in the mixed solution.At last, with the mixture isolated by filtration of iodine and dilute sulfuric acid, filtrate dilute sulfuric acid and elemental iodine reclaim respectively to recycle.
The course of work of the present utility model mainly is divided into two steps.
Step 1: the water in the aqua storage tank 1 is delivered to join iodine groove 3 in joining in the iodine groove 3 from the iodine that stores up iodine groove 4 through supply-water pump 2 and is mixed.Iodine solution through mixing enters in the scrubbing tower 5; Sulfur-bearing tail gas enters in the heat exchanger 13 and condensed water heat exchange from cooling tower 16 from sulfur-bearing tail gas funnel 17, sulfur-bearing tail gas after the heat exchange cooling enters in the scrubbing tower 5, in countercurrent washing in scrubbing tower 5 under the effect of circulation cleaning pump 6, tail gas after the washing passes through the tail gas funnel emptying behind electrostatic precipitator 18, hot water after heat exchange heats up in heat exchanger 13 enters circulating water chennel 14, enters in the cooling tower 16 to cool under the effect of water circulating pump 15.
Step 2: the hydrogen peroxide in the hydrogen peroxide storage tank 8 enters in the scrubbing tower 5 through the effect of dioxygen water pump 9, and the hydrogen iodide reaction generation iodine with wherein makes it have absorbability again.After the sulfuric acid in the scrubbing tower 5 reaches finite concentration, mixed liquor in the scrubbing tower enters oxidation through the outlet of circulation cleaning pump 6 and analyses in the iodine groove 7, with the hydrogen peroxide reaction from hydrogen peroxide storage tank 8, the mixed solution that oxidized back generates elemental iodine and sulfuric acid enters in the centrifuge 10, elemental iodine enters in the iodine accumulator tank 12 recyclingly after centrifugal liquid-solid separation, and sulfuric acid enters in the sulfuric acid storage tank 11.
Claims (7)
1. sulfur-bearing washing tail gas device, mainly by aqua storage tank (1), supply-water pump (2), scrubbing tower (5), circulation cleaning pump (6), centrifuge (10), sulfuric acid feeder (11), heat exchanger (13), circulating water chennel (14), water circulating pump (15), cooling tower (16), sulfur-bearing tail gas funnel (17) composition that is interconnected, it is characterized in that: the outlet pipe of described aqua storage tank (1) bottom is connected with the import of supply-water pump (2), the outlet of supply-water pump (2) is connected with the charging aperture at scrubbing tower (5) middle part, the circulation fluid outlet of scrubbing tower (5) bottom is connected with the import of circulation cleaning pump (6), the outlet of circulation cleaning pump (6) is connected with the circulation fluid import of scrubbing tower (5), the outlet of described circulation cleaning pump (6) is connected with the charging aperture of centrifuge (10), and the liquid phase outlet of centrifuge (10) is connected with the inlet at sulfuric acid feeder (11) top.
2. a kind of sulfur-bearing washing tail gas device according to claim 1, it is characterized in that: be provided with between described supply-water pump (2) and the scrubbing tower (5) and join iodine groove (3) and iodine storage tank (4), the water inlet of joining iodine groove (3) top is connected with the outlet of supply-water pump (2), the discharging opening of iodine storage tank (4) bottom is connected with the charging aperture of joining iodine groove (3) top, and the discharging opening of joining iodine groove (3) bottom is connected with the charging aperture at scrubbing tower (5) middle part.
3. a kind of sulfur-bearing washing tail gas device according to claim 1, it is characterized in that: be provided with oxidation between described circulation cleaning pump (6) and the centrifuge (10) and analyse iodine groove (7), the charging aperture that iodine groove (7) top is analysed in oxidation is connected with the outlet of circulation cleaning pump (6), and the outlet that iodine groove (7) bottom is analysed in oxidation is connected with the charging aperture of centrifuge (10).
4. a kind of sulfur-bearing washing tail gas device according to claim 1, it is characterized in that: the gaseous phase outlet of described heat exchanger (13) is connected with the air inlet of scrubbing tower (5), heat exchanger (13) gas phase import is connected with the outlet of sulfur-bearing tail gas funnel (17), the water inlet of heat exchanger (13) is connected with the delivery port of cooling tower (16), the delivery port of heat exchanger (13) is connected with the water inlet at circulating water chennel (14) top, the delivery port of circulating water chennel (14) bottom is connected with the import of water circulating pump (15), and the outlet of water circulating pump (15) is connected with the water inlet on cooling tower (16) top.
5. a kind of sulfur-bearing washing tail gas device according to claim 1, it is characterized in that: described scrubbing tower (5) middle and upper part is provided with two-layer annular washing nozzle.
6. a kind of sulfur-bearing washing tail gas device according to claim 1 or 5, it is characterized in that: the top of described scrubbing tower (5) is provided with electrostatic precipitator (18), and the outlet of electrostatic precipitator (18) is communicated with tail gas funnel.
7. a kind of sulfur-bearing washing tail gas device according to claim 1 or 5, it is characterized in that: described scrubbing tower (5) middle part also is provided with the hydrogen peroxide import, the hydrogen peroxide import is connected with dioxygen water pump (9), and the import of dioxygen water pump (9) is connected with hydrogen peroxide storage tank (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013788 CN203043828U (en) | 2013-01-10 | 2013-01-10 | Sulfur-containing tail gas washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320013788 CN203043828U (en) | 2013-01-10 | 2013-01-10 | Sulfur-containing tail gas washing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043828U true CN203043828U (en) | 2013-07-10 |
Family
ID=48726829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320013788 Expired - Fee Related CN203043828U (en) | 2013-01-10 | 2013-01-10 | Sulfur-containing tail gas washing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203043828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611406A (en) * | 2013-12-10 | 2014-03-05 | 太原理工大学 | Magnetic separation device and method for sulfur dioxide in smoke |
-
2013
- 2013-01-10 CN CN 201320013788 patent/CN203043828U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611406A (en) * | 2013-12-10 | 2014-03-05 | 太原理工大学 | Magnetic separation device and method for sulfur dioxide in smoke |
| CN103611406B (en) * | 2013-12-10 | 2015-09-02 | 太原理工大学 | The magnetic separating device of sulfur dioxide in flue gas and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102228776A (en) | Method and apparatus for removing sulfur dioxide from sulfuric acid industrial tail gas, and for recovering sulfuric acid | |
| CN102794103A (en) | Double circulation U-shaped tower desulfurization system and process | |
| CN103303877A (en) | Comprehensive multi-gas source low-concentration SO2 fume recycling acid-making technological process | |
| CN101433798B (en) | High-efficient wet-type ammonia recovering method desulfuration method with oxidation and concentration processes outside tower and device thereof | |
| CN101757844B (en) | Method and device for performing flue gas desulfurization by using ammonia process | |
| CN105417509A (en) | Preparation method of nitrosyl sulfuric acid and method for separating sulfuric acid and phosphoric acid in industrial waste acid | |
| CN105617834B (en) | A kind of energy-efficient flue gas desulfurization and denitration technique technology | |
| CN107051158A (en) | A kind of hydrogen peroxide desulfurizer handled for sulfuric acid tail gas and method | |
| CN105032173A (en) | Device and process of ammonia-soda-process combined desulfurization and denitrification | |
| CN203043828U (en) | Sulfur-containing tail gas washing device | |
| CN110252136A (en) | The ultralow temperature smoke denitrating high-performance device of wet process and method | |
| CN202881200U (en) | Desulfurizing device for gas of finery | |
| CN202070285U (en) | Device for removing sulfur dioxides in sulphuric acid industrial tail gas and recovering sulphuric acid | |
| CN203108430U (en) | Device for removing low-concentration sulfur dioxide from phosphate concentrate | |
| CN106039970A (en) | Method for removing sulfur dioxide from sulfuric acid industrial tail gas and recovering sulfuric acid, and apparatus thereof | |
| CN204865499U (en) | Methyl nitrite's waste gas treatment system | |
| CN109260928B (en) | Ammonium bicarbonate desulfurization method and device with synergy of lead plaster desulfurization and flue gas desulfurization | |
| CN100506352C (en) | Resource iron recovery method flue gas desulphurization techniques and the integration device thereof | |
| CN203402928U (en) | Resourceful treatment process system for ammonia-containing waste gas/steam in production process of ammonium paratungstate | |
| CN105126904A (en) | Catalyst, catalyst system and method used in ammonia-process integrated desulfurization and denitrification | |
| CN212383460U (en) | Treatment system for absorbing tail gas sulfur dioxide gas | |
| CN106379916B (en) | Desulphurizing activated coke parses smoke recycling and utilizes method | |
| CN104671221A (en) | Method and device for preparing sulphuric acid by taking discharged sulfur dioxide as raw material | |
| CN202336288U (en) | Waste gas recycling system in industrial oxalic acid production | |
| CN209923272U (en) | Ammonia process gas desulfurization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIYANG ZHONGHUA KAILIN FERTILIZER CO., LTD. Free format text: FORMER OWNER: KAILIN (GROUP) CO., LTD., GUIZHOU Effective date: 20130929 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 550002 GUIYANG, GUIZHOU PROVINCE TO: 551109 GUIYANG, GUIZHOU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130929 Address after: Xifeng County in Guizhou Province, Guiyang city town 551109 Patentee after: Zhonghuakai Phosphorous Chemical Fertilizer Co., Ltd., Guiyang Address before: 550002 Guizhou city in Guiyang Province, the Haitian Road No. 203 building 12 layer Patentee before: Guizhou Kailin (Group) Co.,Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: GUIZHOU KAILIN GROUP CO., LTD. Free format text: FORMER OWNER: GUIYANG ZHONGHUA KAILIN FERTILIZER CO., LTD. Effective date: 20150323 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 551109 GUIYANG, GUIZHOU PROVINCE TO: 550009 GUIYANG, GUIZHOU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150323 Address after: No. 237 Jinyang City Kailin Lake District Road 550009 Guizhou city of Guiyang Province Patentee after: Phosphorylcholine group limited-liability company is opened in Guizhou Address before: Xifeng County in Guizhou Province, Guiyang city town 551109 Patentee before: Zhonghuakai Phosphorous Chemical Fertilizer Co., Ltd., Guiyang |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20190110 |