CN102430249A - Hot-air concentrating tower for purifying waste acid - Google Patents
Hot-air concentrating tower for purifying waste acid Download PDFInfo
- Publication number
- CN102430249A CN102430249A CN2011102884624A CN201110288462A CN102430249A CN 102430249 A CN102430249 A CN 102430249A CN 2011102884624 A CN2011102884624 A CN 2011102884624A CN 201110288462 A CN201110288462 A CN 201110288462A CN 102430249 A CN102430249 A CN 102430249A
- Authority
- CN
- China
- Prior art keywords
- tower
- dirty
- hot blast
- waste acid
- sour
- 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.)
- Granted
Links
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention provides a hot-air concentrating tower for purifying waste acid, comprising a liquid meter, a waste acid inlet pipe, an overflow edge, a tail gas outlet, a defogging layer, a waste acid spray header, a waste acid circulation pipe, a hot-air inlet hole and an overflow pipe. The tower is in a cylindrical shape, and the bottom part is fixed with a pedestal. The liquid meter is arranged on the lower end of the tower body, and the lower part of the tower is provided with a waste acid inlet interface which is connected with the waste acid inlet pipe. The overflow pipe is arranged at the hot-air inlet hole, and the hot-air inlet hole is arranged on the middle lower part of the tower. The waste acid spray header is connected with the waste acid circulation pipe and arranged at the middle upper part of the tower and the upper side of the hot-air inlet hole. The upper side of the waste acid spray header is arranged with the defogging layer (or independently arranged outside the tower). The edge of the top part of the tower is provided with the overflow edge, and the centre of the top part of the tower is provided with the tail gas outlet. The hot-air concentrating tower has high efficiency, little taken area, long service time and simple and convenient maintenance, so the sulfur resources in the waste acid can be rationally recycled and reused.
Description
Technical field
The present invention relates to a kind of chemical industry equipment, especially a kind of hot blast concentration tower that is used for acid purification is applicable in the nonferrous metallurgical process, produces the treating apparatus of dirty acid in the flue gas acid preparing process.
Background technology
To carry out wet cleaning, SO wherein earlier before utilizing metallurgical off-gas acid-making in the nonferrous smelting industry
3Meet water and can generate dilute sulfuric acid, and mix with flue dust, produce the dirty acid that contains arsenic, fluorine, chlorine and heavy metal etc., dirty acid does not have industrial use, must carry out harmless treatment.Generally adopt sulfuration removal of impurities milk of lime neutralisation to handle dirty acid at present; This process is the counter-measure of taking in order to let flue gas weak acid scrubbing technology carry out smoothly; In dirty acid treatment field also is a comparatively ripe and general technology, but mainly there is following some deficiency in this technology: (1) system receives SO in the flue gas
3The restriction of content is like SO
3Content raises, and then dirty acid yield increases, and system can not in time improve treating capacity tackling too much dirty acid, thereby influences the normal operation of main system; (2) dilute sulfuric acid in the dirty acid is not utilized effectively, and causes the sulphur resource to waste; (3) in the dirty acid with the time use a large amount of lime, produce a large amount of inferior useless gypsum tailings simultaneously, strengthened dirty acid treatment expense; (4) dirty acid treatment process will produce H
2S, sulfuration slag and gypsum tailings, processing links is long and can cause secondary pollution.
Smelt the flue gas that journey produces and after electricity gathers dust, send to relieving haperacidity, at the assorted diluted acid that contains that fume purifying processes produced, the concentration of acid is low and contain a large amount of F, Cl, As and other impurity.
Summary of the invention
The objective of the invention is to avoid the deficiency of prior art and a kind of dirty acid purification hot blast concentration tower is provided.
The technical scheme that the present invention adopted is: dirty acid purification hot blast concentration tower comprises liquid level gauge, dirty sour feed tube, overflow eaves, tail gas outlet; The demist layer, dirty sour spray head, dirty sour circulation pipe, hot blast inserts the hole; Overflow pipe, tower is a tubular, and the bottom is fixed with base, and liquid level gauge is located at the lower end of tower body; The bottom of tower has dirty sour feed liquor interface, is connected with the sour feed tube of dirt, and overflow pipe is located at hot blast and inserts the hole, and hot blast inserts the middle and lower part that the hole is located at tower; Dirty sour spray head is connected with dirty sour circulation pipe, and is located at the middle and upper part of tower, the top that hot blast inserts the hole; The top of dirty sour spray head is provided with demister (also can be independent of tower is provided with) outward; The top of tower is provided with the overflow eaves, and the tail gas outlet is left in the top center position of tower.
The top of liquid level gauge is a little more than the interface of the sour feed tube of dirt.
The interface of overflow pipe is a little less than the interface of the sour feed tube of dirt.
Dirty sour spray head is a multilayer, a plurality of, is generally symmetric arrays.
Tower body and interface adopt resistance to acid attack, exotic materials such as high temperature resistant glass fibre reinforced plastic, graphite, titanium steel to process.
Compared with prior art, advantage of the present invention is: the success that has realized dirty acid heat wind concentration technique efficiently moves, and floor space is little.Adopt resistance to acid attack, resistant to elevated temperatures material to process, equipment is reliable, long service life, easy maintenance.Guaranteed dirty sour thickening efficiency and avoided because of dirty acid mistization with the sulphur resources loss that is blown off by hot blast and cause, the sulphur resource is rationally recycled, and effective elimination F, Cl, the As in the dirty acid; The erosion of hot-blast outlet high-temperature gas to the equipment top also avoided in the design of overflow eaves.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, 1 is liquid level gauge, and 2 is dirty sour feed tube, and 3 are the overflow eaves, and 4 are the tail gas outlet, and 5 are the demist layer, and 6 is dirty sour spray head, and 7 is dirty sour circulation pipe, and 8 for hot blast inserts the hole, and 9 is overflow pipe.
The specific embodiment
Dirty acid purification hot blast concentration tower comprises liquid level gauge 1, dirty sour feed tube 2, overflow eaves 3, tail gas outlet 4; Demist layer 5, dirty sour spray head 6, dirty sour circulation pipe 7, hot blast inserts hole 8; Overflow pipe 9, tower is a tubular, and the bottom is fixed with base, and liquid level gauge 1 is fixed on the base; The bottom of tower has dirty sour feed liquor interface, is connected with the sour feed tube 2 of dirt, and overflow pipe 9 is located at hot blast and inserts 8 belows, hole, and hot blast inserts the middle and lower part that hole 8 is located at tower; Dirty sour spray head 6 is connected with dirty sour circulation pipe 7, is located at the middle part of tower, and hot blast inserts the top in hole 8; The top of dirty sour spray head 6 is provided with demist layer 5, leaves cavity between demist layer 5 and the cat head; The top of tower is provided with overflow eaves 3, and tail gas outlet 4 is left in the top center position of tower.
The top of liquid level gauge 1 is a little more than the interface of the sour feed tube 2 of dirt.
The interface of overflow pipe 3 is a little less than the interface of the sour feed tube 2 of dirt.
Dirty sour spray head 6 is a plurality of, is generally symmetric arrays.
Tower body and interface adopt resistance to acid attack, exotic materials such as high temperature resistant glass fibre reinforced plastic, graphite, titanium steel to process.
Utilize the relieving haperacidity flow process to transform hot blast that the link waste heat converts to thermal source as dirty acid heat wind novel concentrating process.In concentration tower; Dirty acid is sprayed by the sour spray head 6 of dirt on concentration tower top; Contact with hot blast from bottom to top is reverse; Make dirty acid be able to concentrate; Make simultaneously F in the dirty acid, Cl with the form of HF, HCl with evaporate the steam that combine with the acid mist form in tail gas outlet 4 gets in the tail gas washing towers by alkali lye and the back forms harmless salt, concentrate back sulfuric acid in subsequent processing after cooling removes As, sulfuration removal of impurities, finally produce the industrial goods sulfuric acid that meets standard quality with the industrial moisturizing form adding dried suction of acid making system operation.
Claims (5)
1. dirty acid purification hot blast concentration tower comprises liquid level gauge, dirty sour feed tube, overflow eaves, tail gas outlet; The demist layer, dirty sour spray head, dirty sour circulation pipe, hot blast inserts the hole; Overflow pipe is characterized in that tower is cylindric, and the bottom is fixed with base, and liquid level gauge is located at the lower end of tower body; The bottom of tower has dirty sour feed liquor interface, is connected with the sour feed tube of dirt, and overflow pipe is located at hot blast and inserts the bottom, hole, and hot blast inserts the middle and lower part that the hole is located at tower; Dirty sour spray head is connected with dirty sour circulation pipe, and is located at the middle and upper part of tower, the top that hot blast inserts the hole; The top of dirty sour spray head is provided with demister (also can be independent of tower is provided with) outward; The top of tower is provided with the overflow eaves, and the tail gas outlet is left in the top center position of tower.
2. dirty acid purification hot blast concentration tower according to claim 1 is characterized in that the interface of the top of liquid level gauge a little more than the sour feed tube of dirt.
3. dirty acid purification hot blast concentration tower according to claim 1 is characterized in that the interface of the interface of overflow pipe a little less than the sour feed tube of dirt.
4. dirty acid purification hot blast concentration tower according to claim 1 is characterized in that dirty sour spray head is a multilayer, a plurality of, is generally symmetric arrays.
5. dirty acid purification hot blast concentration tower according to claim 1 is characterized in that tower body and interface adopt resistance to acid attack, exotic materials such as high temperature resistant glass fibre reinforced plastic, graphite, titanium steel to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110288462.4A CN102430249B (en) | 2011-09-27 | 2011-09-27 | In flue gas acid preparing process produce dirty acid purification hot blast concentration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110288462.4A CN102430249B (en) | 2011-09-27 | 2011-09-27 | In flue gas acid preparing process produce dirty acid purification hot blast concentration tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102430249A true CN102430249A (en) | 2012-05-02 |
| CN102430249B CN102430249B (en) | 2015-08-12 |
Family
ID=45978820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110288462.4A Active CN102430249B (en) | 2011-09-27 | 2011-09-27 | In flue gas acid preparing process produce dirty acid purification hot blast concentration tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102430249B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474848A (en) * | 2014-11-17 | 2015-04-01 | 云南华联锌铟股份有限公司 | Comprehensive utilization method of contaminated acid of sulfide ore roasting acid making system |
| CN105731704A (en) * | 2016-01-18 | 2016-07-06 | 云南世邦环保科技发展有限公司 | Treatment method for removing fluorine and chlorine ions in acidic wastewater |
| CN105854324A (en) * | 2016-04-25 | 2016-08-17 | 钮德明 | Jet type gas-liquid contact evaporator |
| CN105944398A (en) * | 2016-06-28 | 2016-09-21 | 钮德明 | Externally circulated electromagnetic heat pipe heated vacuum evaporator |
| CN106345259A (en) * | 2016-10-21 | 2017-01-25 | 金川集团股份有限公司 | Treatment device and method for smelting flue gas collected from fugitive emission |
| CN110354916A (en) * | 2019-08-12 | 2019-10-22 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerative system |
| CN114588646A (en) * | 2021-03-26 | 2022-06-07 | 江苏御镐智能制造有限公司 | Waste acid concentration treatment tower |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0844211A1 (en) * | 1996-11-26 | 1998-05-27 | Haldor Topsoe A/S | Process for concentration of sulphuric acid |
| CN1376633A (en) * | 2002-05-09 | 2002-10-30 | 四川龙蟒集团有限责任公司 | Process for concentrating diluted sulfuric acid and removing impurities |
| CN101857203A (en) * | 2010-05-24 | 2010-10-13 | 东营方圆有色金属有限公司 | Process for comprehensively recycling heavy metal-polluted acid |
| CN202427181U (en) * | 2011-09-27 | 2012-09-12 | 东营方圆有色金属有限公司 | Waste acid purification hot air concentrating tower |
-
2011
- 2011-09-27 CN CN201110288462.4A patent/CN102430249B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0844211A1 (en) * | 1996-11-26 | 1998-05-27 | Haldor Topsoe A/S | Process for concentration of sulphuric acid |
| CN1376633A (en) * | 2002-05-09 | 2002-10-30 | 四川龙蟒集团有限责任公司 | Process for concentrating diluted sulfuric acid and removing impurities |
| CN101857203A (en) * | 2010-05-24 | 2010-10-13 | 东营方圆有色金属有限公司 | Process for comprehensively recycling heavy metal-polluted acid |
| CN202427181U (en) * | 2011-09-27 | 2012-09-12 | 东营方圆有色金属有限公司 | Waste acid purification hot air concentrating tower |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474848A (en) * | 2014-11-17 | 2015-04-01 | 云南华联锌铟股份有限公司 | Comprehensive utilization method of contaminated acid of sulfide ore roasting acid making system |
| CN105731704A (en) * | 2016-01-18 | 2016-07-06 | 云南世邦环保科技发展有限公司 | Treatment method for removing fluorine and chlorine ions in acidic wastewater |
| CN105731704B (en) * | 2016-01-18 | 2019-01-01 | 云南世邦环保科技发展有限公司 | Fluorine removal, the processing method of chloride ion are gone in a kind of waste acid |
| CN105854324A (en) * | 2016-04-25 | 2016-08-17 | 钮德明 | Jet type gas-liquid contact evaporator |
| CN105944398A (en) * | 2016-06-28 | 2016-09-21 | 钮德明 | Externally circulated electromagnetic heat pipe heated vacuum evaporator |
| CN106345259A (en) * | 2016-10-21 | 2017-01-25 | 金川集团股份有限公司 | Treatment device and method for smelting flue gas collected from fugitive emission |
| CN110354916A (en) * | 2019-08-12 | 2019-10-22 | 国电环境保护研究院有限公司 | A kind of carbon base catalyst regenerative system |
| CN114588646A (en) * | 2021-03-26 | 2022-06-07 | 江苏御镐智能制造有限公司 | Waste acid concentration treatment tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102430249B (en) | 2015-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102430249B (en) | In flue gas acid preparing process produce dirty acid purification hot blast concentration tower | |
| CN102424368B (en) | Hot blast method of enrichment removes the technique of F, Cl, As in dirty acid | |
| CN107008127A (en) | A kind of wet cleaning technique of plasma fusing fly ash tail gas | |
| CN103252161B (en) | Renewable organic amine circulation desulfurization purification tower and renewable organic amine circulation desulfurization technology | |
| CN106268179A (en) | The energy saving technique of a kind of synthetical recovery sulfuric acid purification spent acid and system | |
| CN110124347B (en) | Water-saving energy-saving type flue gas purifying device and method | |
| CN202427181U (en) | Waste acid purification hot air concentrating tower | |
| CN103866132B (en) | A kind of technique that reclaims mercury from non-ferrous metal metallurgy flue gas | |
| CN202161911U (en) | Flue gas treatment equipment | |
| CN205076806U (en) | Novel gas purification device | |
| CN218155574U (en) | Acidizing calcination flue gas processing system | |
| CN209481174U (en) | Hydrochloride waste regenerative system | |
| CN202070283U (en) | Tailing cooling and dedusting system of hydrogen fluoride reaction furnace | |
| CN108298507A (en) | A kind of method and device handling calcining petroleum coke sulfur-containing smoke gas using pyrite-based sulphuric acid plant | |
| CN203842472U (en) | Smoke washing system using wet electric demister | |
| CN208345757U (en) | A kind of device using pyrite-based sulphuric acid plant processing calcining petroleum coke sulfur-containing smoke gas | |
| CN105688565A (en) | Metallurgical mine calcining tail gas purifying and heat recycling device and process | |
| CN220750843U (en) | Flue gas purifying system | |
| CN201688716U (en) | Low-temperature flue gas waste heat utilization apparatus containing desulphurization technology | |
| CN102284236A (en) | Equipment for treating gas fume | |
| CN200974041Y (en) | Crossbeam of the electric demister | |
| CN101791514A (en) | Purification device for acid mist from picking process | |
| CN215782646U (en) | Industrial tail gas acidification absorption system | |
| CN216614549U (en) | Blast furnace gas desulfurization and dechlorination purification device | |
| CN214486244U (en) | Complex flue gas treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20210721 Granted publication date: 20150812 |