CN103055668B - Method and device for desulphurization and heavy metal-removal process on colored metallurgical fume - Google Patents
Method and device for desulphurization and heavy metal-removal process on colored metallurgical fume Download PDFInfo
- Publication number
- CN103055668B CN103055668B CN201210584088.7A CN201210584088A CN103055668B CN 103055668 B CN103055668 B CN 103055668B CN 201210584088 A CN201210584088 A CN 201210584088A CN 103055668 B CN103055668 B CN 103055668B
- Authority
- CN
- China
- Prior art keywords
- flue gas
- metal
- washing
- heavy
- ammonium sulfate
- 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.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to a method and a device for a desulphurization and heavy metal-removal process on colored metallurgical fume and belongs to the technical field of fume purification. The method comprises the following steps of wet cooling dedusting, SO2 gas removal, ferrite method-based heavy metal removal, and heavy metal deep removal. The method and the device can effectively remove dust, SO2, arsenic and heavy metals in colored metallurgical fume, and prevent fume discharge-caused environmental pollution. SO2 separated by the method and the device can be used for manufacture of a qualified byproduct ammonium sulfate fertilizer, and heavy metals separated by the method and the device can be fed back to a smelting system for recycle.
Description
Technical field
The present invention relates to flue gases purification field, be specifically related to a kind of method and device of nonferrous metallurgy flue gas desulfurization removing heavy-metal.
Background technology
Nonferrous metallurgy is smelted in the flue gas of discharge, except containing SO
2outward, also containing heavy metal and toxic nonmetal, lead (Pb), cadmium (Cd), chromium (Cr), nickel (Ni), zinc (Zn), copper (Cu), arsenic (As) etc. in heavy metal, are had.Spread in these mass emissions to air, or bring in desulfurization product, contaminated air, soil and water, cause huge harm.
Arsenical fume after the dedusting produced in the roasting of sulphide ore and other mineral or smelting process in colored metallurgical industrial, generally at SO
2spent acid or waste water washing method is adopted to remove arsenic wherein before relieving haperacidity.The spent acid obtained and waste water discharge after harmless treatment, and because in flue gas, arsenic content is few, the quantity of slag finally obtained is also little, is easy to process.But need increase treatment process and increase system investments and operating cost.
In colored metallurgical industrial, the SO in some technical process flue gas
2concentration is low, can not direct extracting sulfuric acid.By after dedusting containing heavy metal and SO
2flue gas, conventional method washes cooling with water before heat smoke desulfurization, produces a large amount of containing NH
3the difficult waste water of-N and heavy metal, needs containing NH
3the waste water of-N and heavy metal processes, investment and operating cost high.Or heat smoke through sour gas agent for capturing, remove absorbent and strong oxidizer ozone or hydrogen peroxide and carry out desulfurization, removing heavy-metal, there is desulfurization, removing heavy-metal is incomplete, be difficult to the shortcoming reclaimed, as the Chinese invention patent " flue gas desulfurization and denitrification removing heavy-metal integral method and special equipment " that application number is 201110091281.2, also there is the shortcoming such as investment, operating cost height.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and device of nonferrous metallurgy flue gas desulfurization removing heavy-metal, effectively can remove flue dust, the SO in flue gas
2, arsenic and heavy metal, thus solve the problem of smoke emissioning pollution environment.
The technical solution used in the present invention is a kind of method of nonferrous metallurgy flue gas desulfurization removing heavy-metal, and the method comprises the following steps:
A, wet cooling dedusting: nonferrous metallurgy flue gas ammonium sulfate is carried out spray washing, the temperature of nonferrous metallurgy flue gas is made to be down to 45 ~ 55 DEG C, and utilize the surface-active of ammonium sulfate to get off in nonferrous metallurgy flue gas containing the smoke catching of heavy metal ion, must liquid after the washing of heavy metal ion flue dust containing the heavy metal ion flue dust and vitriolization ammonium salt solution that are insoluble to ammonium sulfate;
B, remove SO
2gas: the flue gas after ammonium sulfate spray washing, sprays with ammonia spirit, absorbs the SO in flue gas
2gas generates the sub-mixed salt solution containing ammonium sulfite and ammonium bisulfite; By absorption SO
2flue gas up to standard after gas externally discharges, and a part for the sub-mixed salt solution of gained obtains ammonium sulfate through air aeration oxidation, and this ammonium sulfate is used for the nonferrous metallurgy flue gas in step a described in circulated sprinkling; Another part of the sub-mixed salt solution of gained adds ammonia spirit, the part ammonium bisulfite in sub-mixed salt solution is made to be converted into ammonium sulfite, must mend the mixed solution that ammonia spirit also contains ammonium sulfite and ammonium bisulfite, this mixed solution is used for substituting ammonia spirit and the above-mentioned flue gas after ammonium sulfate spray washing of circulated sprinkling;
C, ferrite process remove heavy metal: when liquid is after testing containing As ion after the washing in described step a, after this washing, add Fe in liquid
2+or Fe
3+dearsenification reagent also blasts air and reacts, and the As after making washing in liquid and part Pb ion generate the sediment of ferrospinel structure, filter and remove precipitation, obtain filtered fluid;
D, deep removal heavy metal: described filtered fluid is added heavy metal removing agent and reacts, make the heavy metal ion in filtered fluid generate slightly solubility precipitation, filter and remove precipitation, obtain pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure obtains ammonium sulfate fertilizer after concentrate drying.
As preferably, when liquid is not after testing containing As ion after the washing in described step a, described step c will be omitted, directly liquid after washing is added heavy metal removing agent to react, heavy metal ion after making washing in liquid generates slightly solubility precipitation, filters and removes precipitation, obtain pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure obtains ammonium sulfate fertilizer after concentrate drying.
As preferably, the heavy metal ion after described step a washing in liquid comprises any combination of Pb, Cd, Cu, Ni or Zn ion.
As preferably, mole total amount adding the SO2 gas in the amount of ammonia spirit and described absorption flue gas in described step b in sub-mixed salt solution matches.
As preferably, the Fe in described step c
2+dearsenification reagent is selected from FeSO
4or FeCl
2in one.
As preferably, the Fe in described step c
3+dearsenification reagent is selected from Fe
2(SO
4)
3or FeCl
3in one.
As preferably, in described step c, add Fe
2+or Fe
3+after the inventory of dearsenification reagent and described washing, in liquid, a mole total amount for As, Pb ion matches.
As preferably, described heavy metal removing agent is selected from (NH
4)
2s, K
2s, Na
2s, NaH
2pO
4, NH
4h
2pO
4, Na
2hPO
4or (NH
4)
2hPO
4in one.
As preferably, a kind of device for described nonferrous metallurgy flue gas desulfurization removing heavy-metal method, comprises desulfurized dust collection column, circulating slot, removing heavy-metal reactor, removing heavy-metal agent dissolving tank and filter; Described desulfurized dust collection column comprises flue gas washing section, SO
2absorber portion and sulfite oxidation section; Be provided with the first spray equipment in described flue gas washing section, this first spray equipment is provided with the first circulating pump between being connected with described sulfite oxidation segment pipe; Described flue gas washing section is provided with the first delivery pump between being connected with described removing heavy-metal pipe reactor; Described SO
2absorber portion is connected to described sulfite oxidation section and described circulating slot by pipeline; Described SO
2be provided with the second spray equipment in absorber portion, this second spray equipment is provided with the second circulating pump between being connected with described circulating slot pipeline; Be provided with the first aerator in described sulfite oxidation section, and this first aerator is connected with the first air compressor for aeration; Described removing heavy-metal reactor is provided with the second delivery pump between being connected with described removing heavy-metal agent dissolving tank pipeline; Described removing heavy-metal reactor is connected to described filter by circulating line, and is provided with the 3rd delivery pump on the pipeline of described removing heavy-metal reactor to described filter delivered solution.
As preferably, described device also comprises dearsenification reactor and Hydrodearsenic Catalyst dissolving tank; Described dearsenification reactor is provided with the first delivery pump between being connected with described flue gas washing segment pipe; Described dearsenification reactor is provided with the 4th delivery pump between being connected with described Hydrodearsenic Catalyst dissolving tank pipeline; Be provided with the second aerator in described dearsenification reactor, and this second aerator is connected with the second air compressor for aeration; Described dearsenification reactor is provided with the 3rd delivery pump to the pipeline of described filter delivered solution; Described dearsenification reactor is provided with the 3rd delivery pump to the pipeline of the direct delivered solution of described removing heavy-metal reactor.
Beneficial effect of the present invention is: (1) effectively can remove flue dust, the SO in nonferrous metallurgy flue gas after adopting said method and device
2, arsenic and heavy metal, make fume emission cause environmental pollution; (2) the present invention adopts wet cooling dust collecting process, after utilizing regeneration, ammonium sulfate washs the high-temperature flue gas (about 150 DEG C) just discharged, make the temperature of flue gas be reduced to 45 ~ 55 DEG C, ammonium sulfate concentration can be made to improve, and can SO better in recovered flue gas
2and heavy metal, get rid of the drawback that traditional water goes to wash cooling, made can not produce NH in art production process
3-N, has saved the investment of water washing dedust, electric demist, has also saved containing NH
3the wastewater treatment investment of-N and heavy metal and operating cost; (3) the present invention adopts ferrite process to remove the technique of heavy metal, salt content can be made to be greater than the heavy metal contained in the ammonium sulfate of 420g/L and effectively remove; (4) adopt method of the present invention, heavy metal can be made to form solids of sedimentation, be beneficial to recycling; (5) apparatus of the present invention can according to after washing in liquid whether containing As ion and when dearsenification react production precipitation capacity number, flexible adjusting process flow process, thus avoid waste raw materials for production, has saved and has become product cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
In figure: 1-flue gas washing section, 2-SO
2absorber portion, 3-sulfite oxidation section, 4-circulating slot, 5-dearsenification reactor, 6-removing heavy-metal reactor, 7-Hydrodearsenic Catalyst dissolving tank, 8-removing heavy-metal agent dissolving tank, 9-filter, 10-first air compressor, 11-second air compressor, 12-first circulating pump, 13-second circulating pump, 14-the 3rd delivery pump, 15-the 4th delivery pump, 16-second delivery pump, 17-first delivery pump, 18-first aerator, 19-second aerator.
Detailed description of the invention
Below in conjunction with drawings and Examples, one detailed description is done to the method for the invention and device, but not as limitation of the present invention.
Embodiment one
By nonferrous metallurgy flue gas by Cemented filling in the flue gas washing section 1 of desulfurized dust collection column, spray washing is carried out with ammonium sulfate, the temperature of nonferrous metallurgy flue gas is made to be down to 50 DEG C, and utilize the surface-active of ammonium sulfate to get off in nonferrous metallurgy flue gas containing the smoke catching of heavy metal ion, must liquid after the washing of heavy metal ion flue dust containing the heavy metal ion flue dust and vitriolization ammonium salt solution that are insoluble to ammonium sulfate; Flue gas after ammonium sulfate spray washing, enters into SO by the gas distributor on flue gas washing section 1 top
2in absorber portion 2, then spray with ammonia spirit, absorb the SO in flue gas
2gas generates the sub-mixed salt solution containing ammonium sulfite and ammonium bisulfite; By absorption SO
2flue gas up to standard after gas passes through SO
2the chimney on absorber portion 2 top discharges, a part in the sub-mixed salt solution of gained is after Cemented filling to sulfite oxidation section 3, open the first air compressor 10, to make to be placed in sulfite oxidation section 3 and the first aerator 18 be connected with the first air compressor 10 produces air aeration, sub-for this part mixed salt solution aerating oxidation is obtained ammonium sulfate, this ammonium sulfate is delivered to by the first circulating pump 12 and is placed in flue gas washing section 1 first spray equipment, is cycled to used in spray nonferrous metallurgy flue gas; After another part of the sub-mixed salt solution of gained is delivered to circulating slot 4 by the first circulating pump 12, add and the SO absorbed in flue gas
2the ammonia spirit that mole total amount of gas matches, the part ammonium bisulfite in the sub-mixed salt solution of this part is made to be converted into ammonium sulfite, must mend the mixed solution that ammonia spirit also contains ammonium sulfite and ammonium bisulfite, this mixed solution is delivered to by the second circulating pump 13 and is placed in SO
2second spray equipment in absorber portion 2, replacement ammonia spirit is cycled to used in the SO in the above-mentioned absorption flue gas of spray-absorption
2gas; Liquid after the washing obtained in flue gas washing section 1 is detected, time not containing As ion, by the first delivery pump 17, liquid after washing is delivered in removing heavy-metal reactor 6, then by (the NH in removing heavy-metal agent dissolving tank 8
4)
2s solution is delivered in removing heavy-metal reactor 6 by the second delivery pump 16 and reacts, the heavy metal ion such as Pb, Cd, Cu, Ni and Zn of containing in liquid after making washing generate slightly solubility precipitation, then will be delivered in filter 9 by liquid after reacted washing by the 3rd delivery pump 14, filter and remove precipitation, obtain pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure obtains ammonium sulfate fertilizer after concentrate drying.
Embodiment two
By nonferrous metallurgy flue gas by Cemented filling in the flue gas washing section 1 of desulfurized dust collection column, spray washing is carried out with ammonium sulfate, the temperature of nonferrous metallurgy flue gas is made to be down to 45 DEG C, and utilize the surface-active of ammonium sulfate to get off in nonferrous metallurgy flue gas containing the smoke catching of heavy metal ion, must liquid after the washing of heavy metal ion flue dust containing the heavy metal ion flue dust and vitriolization ammonium salt solution that are insoluble to ammonium sulfate; Flue gas after ammonium sulfate spray washing, enters into SO by the gas distributor on flue gas washing section 1 top
2in absorber portion 2, then spray with ammonia spirit, absorb the SO in flue gas
2gas generates the sub-mixed salt solution containing ammonium sulfite and ammonium bisulfite; By absorption SO
2flue gas up to standard after gas passes through SO
2the chimney on absorber portion 2 top discharges, a part in the sub-mixed salt solution of gained is after Cemented filling to sulfite oxidation section 3, open the first air compressor 10, to make to be placed in sulfite oxidation section 3 and the first aerator 18 be connected with the first air compressor 10 produces air aeration, sub-for this part mixed salt solution aerating oxidation is obtained ammonium sulfate, this ammonium sulfate is delivered to by the first circulating pump 12 and is placed in flue gas washing section 1 first spray equipment, is cycled to used in spray nonferrous metallurgy flue gas; After another part of the sub-mixed salt solution of gained is delivered to circulating slot 4 by the first circulating pump 12, adds and absorb SO in flue gas
2the ammonia spirit that mole total amount of gas matches, the part ammonium bisulfite in the sub-mixed salt solution of this part is made to be converted into ammonium sulfite, must mend the mixed solution that ammonia spirit also contains ammonium sulfite and ammonium bisulfite, this mixed solution is delivered to by the second circulating pump 13 and is placed in SO
2second spray equipment in absorber portion 2, replacement ammonia spirit is cycled to used in the SO in the above-mentioned absorption flue gas of spray-absorption
2gas; Liquid after the washing obtained in flue gas washing section 1 is detected, during containing As ion, by the first delivery pump 17, liquid after washing is delivered in dearsenification reactor 5, by with washing after mole total amount of As, Pb ion matches in liquid FeSO
4be dissolved in Hydrodearsenic Catalyst dissolving tank 7, by the 4th delivery pump 15 by FeSO
4solution is delivered in dearsenification reactor 5, start the second air compressor 11, to make to be placed in dearsenification reactor 5 and the second aerator 19 be connected with the second air compressor 11 produces aeration, react, As after making washing in liquid and part Pb ion generate the sediment of ferrospinel structure, liquid after reacted for dearsenification washing is delivered in filter 9 by the 3rd delivery pump 14, filters and remove precipitation, obtain filtered fluid; This filtered fluid by Cemented filling in removing heavy-metal reactor 6, then by the Na in removing heavy-metal agent dissolving tank 8
2s solution is delivered in removing heavy-metal reactor 6 by the second delivery pump 16 and reacts, the heavy metal ion such as Pb, Cd, Cu, Ni and the Zn contained in filtered fluid are made to generate slightly solubility precipitation, then will be delivered in filter 9 through reacted filtered fluid by the 3rd delivery pump 14, filter and remove precipitation, obtain pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure obtains ammonium sulfate fertilizer after concentrate drying.
Embodiment three
By nonferrous metallurgy flue gas by Cemented filling in the flue gas washing section 1 of desulfurized dust collection column, spray washing is carried out with ammonium sulfate, the temperature of nonferrous metallurgy flue gas is made to be down to 55 DEG C, and utilize the surface-active of ammonium sulfate to get off in nonferrous metallurgy flue gas containing the smoke catching of heavy metal ion, must liquid after the washing of heavy metal ion flue dust containing the heavy metal ion flue dust and vitriolization ammonium salt solution that are insoluble to ammonium sulfate; Flue gas after ammonium sulfate spray washing, enters into SO by the gas distributor on flue gas washing section 1 top
2in absorber portion 2, then spray with ammonia spirit, absorb the SO in flue gas
2gas generates the sub-mixed salt solution containing ammonium sulfite and ammonium bisulfite; By absorption SO
2flue gas up to standard after gas passes through SO
2the chimney on absorber portion 2 top discharges, a part in the sub-mixed salt solution of gained is after Cemented filling to sulfite oxidation section 3, open the first air compressor 10, to make to be placed in sulfite oxidation section 3 and the first aerator 18 be connected with the first air compressor 10 produces air aeration, sub-for this part mixed salt solution aerating oxidation is obtained ammonium sulfate, this ammonium sulfate is delivered to by the first circulating pump 12 and is placed in flue gas washing section 1 first spray equipment, is cycled to used in spray nonferrous metallurgy flue gas; After another part of the sub-mixed salt solution of gained is delivered to circulating slot 4 by the first circulating pump 12, adds and absorb SO in flue gas
2the ammonia spirit that mole total amount of gas matches, the part ammonium bisulfite in the sub-mixed salt solution of this part is made to be converted into ammonium sulfite, must mend the mixed solution that ammonia spirit also contains ammonium sulfite and ammonium bisulfite, this mixed solution is delivered to by the second circulating pump 13 and is placed in SO
2second spray equipment in absorber portion 2, replacement ammonia spirit is cycled to used in the SO in the above-mentioned absorption flue gas of spray-absorption
2gas; Liquid after the washing obtained in flue gas washing section 1 is detected, during containing As ion, by the first delivery pump 17, liquid after washing is delivered in dearsenification reactor 5, by with washing after mole total amount of As, Pb ion matches in liquid FeSO
4be dissolved in Hydrodearsenic Catalyst dissolving tank 7, by the 4th delivery pump 15 by FeSO
4solution is delivered in dearsenification reactor 5, start the second air compressor 11, to make to be placed in dearsenification reactor 5 and the second aerator 19 be connected with the second air compressor 11 produces aeration, react, As after making washing in liquid and part Pb ion generate the sediment of ferrospinel structure, when this sediment is less, directly liquid after reacted for dearsenification washing is delivered in removing heavy-metal reactor 6 by the 3rd delivery pump 14, then by the NH in removing heavy-metal agent dissolving tank 8
4h
2pO
4solution is delivered in removing heavy-metal reactor 6 by the second delivery pump 16 and reacts, the heavy metal ion such as Pb, Cd, Cu, Ni and Zn of containing in liquid after making washing generate slightly solubility precipitation, then will be delivered in filter 9 by liquid after reacted washing by the 3rd delivery pump 14, filter and remove precipitation, obtain pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure obtains ammonium sulfate fertilizer after concentrate drying.
Finally it should be noted that, above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment to invention has been detailed description, those skilled in the art are to be understood that, still can modify to the present invention or equivalent replacement, and not departing from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in right of the present invention.
Claims (9)
1. a method for nonferrous metallurgy flue gas desulfurization removing heavy-metal, is characterized in that: the method comprises the following steps:
A, wet cooling dedusting: nonferrous metallurgy flue gas ammonium sulfate is carried out spray washing, the temperature of nonferrous metallurgy flue gas is made to be down to 45 ~ 55 DEG C, and utilize the surface-active of ammonium sulfate to get off in nonferrous metallurgy flue gas containing the smoke catching of heavy metal ion, must liquid after the washing of heavy metal ion flue dust containing the heavy metal ion flue dust and vitriolization ammonium salt solution that are insoluble to ammonium sulfate;
B, remove SO
2gas: the flue gas after ammonium sulfate spray washing, sprays with ammonia spirit, absorbs the SO in flue gas
2gas generates the sub-mixed salt solution containing ammonium sulfite and ammonium bisulfite; By absorption SO
2flue gas up to standard after gas externally discharges, and a part for the sub-mixed salt solution of gained obtains ammonium sulfate through air aeration oxidation, and this ammonium sulfate is used for the nonferrous metallurgy flue gas in step a described in circulated sprinkling; Another part of the sub-mixed salt solution of gained adds ammonia spirit, the part ammonium bisulfite in sub-mixed salt solution is made to be converted into ammonium sulfite, must mend the mixed solution that ammonia spirit also contains ammonium sulfite and ammonium bisulfite, this mixed solution is used for substituting ammonia spirit and the above-mentioned flue gas after ammonium sulfate spray washing of circulated sprinkling;
C, ferrite process remove heavy metal: when liquid is after testing containing As ion after the washing in described step a, after this washing, add Fe in liquid
2+or Fe
3+dearsenification reagent also blasts air and reacts, and the As after making washing in liquid and part Pb ion generate the sediment of ferrospinel structure, filter and remove precipitation, obtain filtered fluid;
D, deep removal heavy metal: described filtered fluid is added heavy metal removing agent and reacts, make the heavy metal ion in filtered fluid generate slightly solubility precipitation, filter and remove precipitation, obtain pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure obtains ammonium sulfate fertilizer after concentrate drying;
Described heavy metal removing agent is selected from (NH
4)
2s, K
2s, Na
2s, NaH
2pO
4, NH
4h
2pO
4, Na
2hPO
4or (NH
4)
2hPO
4in one.
2. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1, it is characterized in that: when after the washing in described step a, liquid is not after testing containing As ion, described step c will be omitted, directly liquid after washing is added heavy metal removing agent to react, heavy metal ion after making washing in liquid generates slightly solubility precipitation, filter and remove precipitation, obtain pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure obtains ammonium sulfate fertilizer after concentrate drying.
3. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1, is characterized in that: the heavy metal ion after described step a washing in liquid comprises any combination of Pb, Cd, Cu, Ni or Zn ion.
4. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1, is characterized in that: in sub-mixed salt solution, add the SO in the amount of ammonia spirit and described absorption flue gas in described step b
2a mole total amount for gas matches.
5. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1, is characterized in that: the Fe in described step c
2+dearsenification reagent is selected from FeSO
4or FeCl
2in one.
6. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1, is characterized in that: the Fe in described step c
3+dearsenification reagent is selected from Fe
2(SO
4)
3or FeCl
3in one.
7. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1, is characterized in that: add Fe in described step c
2+or Fe
3+after the inventory of dearsenification reagent and described washing, in liquid, a mole total amount for As, Pb ion matches.
8. for a device for nonferrous metallurgy flue gas desulfurization removing heavy-metal method described in claim 1, it is characterized in that: comprise desulfurized dust collection column, circulating slot (4), removing heavy-metal reactor (6), removing heavy-metal agent dissolving tank (8) and filter (9); Described desulfurized dust collection column comprises flue gas washing section (1), SO
2absorber portion (2) and sulfite oxidation section (3); Be provided with the first spray equipment in described flue gas washing section (1), this first spray equipment is provided with the first circulating pump (12) between being connected with described sulfite oxidation section (3) pipeline; Described flue gas washing section (1) is provided with the first delivery pump (17) between being connected with described removing heavy-metal reactor (6) pipeline; Described SO
2absorber portion (2) is connected to described sulfite oxidation section (3) and described circulating slot (4) by pipeline; Described SO
2absorber portion is provided with the second spray equipment in (2), and this second spray equipment is provided with the second circulating pump (13) between being connected with described circulating slot (4) pipeline; Be provided with the first aerator (18) in described sulfite oxidation section (3), and this first aerator (18) is connected with the first air compressor (10) for aeration; Described removing heavy-metal reactor (6) is provided with the second delivery pump (16) between being connected with described removing heavy-metal agent dissolving tank (8) pipeline; Described removing heavy-metal reactor (6) is connected to described filter (9) by circulating line, and on the pipeline of described filter (9) delivered solution, is provided with the 3rd delivery pump (14) described removing heavy-metal reactor (6).
9. the device of nonferrous metallurgy flue gas desulfurization removing heavy-metal method according to claim 8, is characterized in that: also comprise dearsenification reactor (5) and Hydrodearsenic Catalyst dissolving tank (7); Described dearsenification reactor (5) is provided with the first delivery pump (17) between being connected with described flue gas washing section (1) pipeline; Described dearsenification reactor (5) is provided with the 4th delivery pump (15) between being connected with described Hydrodearsenic Catalyst dissolving tank (7) pipeline; Be provided with the second aerator (19) in described dearsenification reactor (5), and this second aerator (19) is connected with the second air compressor (11) for aeration; Described dearsenification reactor (5) is provided with the 3rd delivery pump (14) to the pipeline of described filter (9) delivered solution; Described dearsenification reactor (5) is provided with the 3rd delivery pump (14) to the pipeline of the direct delivered solution of described removing heavy-metal reactor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584088.7A CN103055668B (en) | 2012-12-28 | 2012-12-28 | Method and device for desulphurization and heavy metal-removal process on colored metallurgical fume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210584088.7A CN103055668B (en) | 2012-12-28 | 2012-12-28 | Method and device for desulphurization and heavy metal-removal process on colored metallurgical fume |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103055668A CN103055668A (en) | 2013-04-24 |
| CN103055668B true CN103055668B (en) | 2015-05-20 |
Family
ID=48098740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210584088.7A Active CN103055668B (en) | 2012-12-28 | 2012-12-28 | Method and device for desulphurization and heavy metal-removal process on colored metallurgical fume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103055668B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105797559B (en) * | 2016-03-23 | 2018-04-06 | 昆明理工大学 | A kind of method using Copper making dust treatment non-ferrous metal metallurgy flue gas |
| CN105771632A (en) * | 2016-03-23 | 2016-07-20 | 昆明理工大学 | Method of utilizing copper smelting slag to remove SO2, NOx and Hg in nonferrous smelting flue gas |
| CN105858685B (en) * | 2016-03-30 | 2018-05-08 | 云南驰宏资源综合利用有限公司 | A kind of deeply removing arsenic method of flue gas desulfurization producing ammonium sulfate byproduct |
| CN106582247A (en) * | 2016-12-26 | 2017-04-26 | 合肥天翔环境工程有限公司 | Sulfur and metal removal method for metallurgical flue gas |
| CN107670486A (en) * | 2017-11-29 | 2018-02-09 | 洛阳市天誉环保工程有限公司 | The arsenic removing apparatus and arsenic removal process of sintering device flue gas |
| CN110280125B (en) * | 2019-06-27 | 2022-03-11 | 上海交通大学 | Containing arsenic and SO3Dry purification method of smelting flue gas |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4441090A1 (en) * | 1994-11-18 | 1996-05-23 | Steag Ag | Method and device for cleaning combustion exhaust gases |
| JP2003305332A (en) * | 2002-04-11 | 2003-10-28 | Ishikawajima Harima Heavy Ind Co Ltd | Control method and apparatus for desulfurized waste water from wet type flue-gas desulfurization equipment |
| CN101579602B (en) * | 2009-06-12 | 2011-05-04 | 山西晋丰环保工程设计有限公司 | Energy-saving and high-quality ammonia desulphurization process for ammonia sulfate recovery |
| CN102424489A (en) * | 2011-09-28 | 2012-04-25 | 界首市骏马工贸有限公司 | Desulfurized lead-containing wastewater recycling processing method |
-
2012
- 2012-12-28 CN CN201210584088.7A patent/CN103055668B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103055668A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103055668B (en) | Method and device for desulphurization and heavy metal-removal process on colored metallurgical fume | |
| FI72432B (en) | FARING REQUIREMENTS FOR GAS FORMAL ELEMENTS OF QUANTITY CONVERTERS AND GAS. | |
| CN105289261B (en) | It is a kind of to be used for the cleaning solution that mercury elutes in mercury fume and the method that mercury is reclaimed from mercury fume | |
| CN103768910B (en) | SO in a kind of flue gas during smelting 2with heavy metal synergistic purification method and device | |
| CN103432877A (en) | Integrated method for wet-process dust removal, desulfurization, denitrification demercuration, dearsenification of complexing ferroporphyrin smoke based on supergravity | |
| CN106215863B (en) | A kind of heavy metal absorbent of purification diluted sulfric acid and its application | |
| CN104324575A (en) | Spray absorption type system for simultaneous desulphurization and denitration of sintering flue gas | |
| CN102115270A (en) | Method for processing waste acid generated in process of preparing acid from metal smelting fume | |
| CN112403186B (en) | Method for cooperatively treating and recycling multi-pollutant flue gas and ferrous ammonium sulfite | |
| CN104785091A (en) | Advanced emission reduction method and device for sulfur-containing tail gas of fuming furnace | |
| CN104787780A (en) | Method for removing impurities of ammonium sulfate solution | |
| CN109985509A (en) | A kind of zinc oxide method form waste gas of sulfur dioxide treatment process | |
| CN105384288A (en) | System and method for treating acidic wastewater produced in acid making with smelting gas | |
| CN110818158B (en) | Comprehensive treatment method for waste hydrochloric acid and sludge containing heavy metals | |
| CN102363842B (en) | Process for recovering arsenic comprehensively by two-section roasting of arsenic-containing and carbon-containing gold concentrates | |
| CN103406020B (en) | Additive and a kind of method of flue gas desulfurization and denitrification for flue gas desulfurization and denitrification | |
| CN103768919A (en) | Flue gas desulfurization and denitrification process method | |
| CN105233660A (en) | Coke oven flue-gas treatment system and treatment method thereof | |
| CN106268241B (en) | Copper making ring collection fume desulphurization method and device | |
| CN205109370U (en) | Kiln is volatilized including sulphur tail gas desulfurization device to gyration | |
| CN113289473B (en) | Method for treating heavy metal before smelting flue gas desulfurization | |
| CN103215453B (en) | Method for treating waste residue by using arsenious wastewater in clean mode | |
| CN102688677B (en) | Method for enhancing total mercury recovery rate of metallurgical fume by reducing bivalent mercury | |
| CN215585954U (en) | Device for desulfurizing, removing mercury and decarbonizing flue gas of lead-zinc smelting volatilization kiln | |
| CN103432878A (en) | Integrated method for wet-process desulfurization, denitrification demercuration and dearsenification of complexing ferroporphyrin smoke based on supergravity |
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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 650100 No. 199, science and technology road, Kunming hi tech Development Zone, Yunnan Patentee after: ASIA-PACIFIC ENVIRONMENTAL CORP. Address before: 650100 No. 199, science and technology road, hi tech Industrial Development Zone, Yunnan, Kunming Patentee before: Yatai Environmental Engineering Designing Research Co., Ltd., Yunnan Prov. |