CN103055668A - 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
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- CN103055668A CN103055668A CN2012105840887A CN201210584088A CN103055668A CN 103055668 A CN103055668 A CN 103055668A CN 2012105840887 A CN2012105840887 A CN 2012105840887A CN 201210584088 A CN201210584088 A CN 201210584088A CN 103055668 A CN103055668 A CN 103055668A
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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 the 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 discharging, except containing SO
2, also contain heavy metal and toxic nonmetal outward, lead (Pb), cadmium (Cd), chromium (Cr), nickel (Ni), zinc (Zn), copper (Cu), arsenic (As) etc. are arranged in the heavy metal.These materials are discharged in the air and spread, or bring in the desulfurization product, and contaminated air, soil and water cause huge harm.
Arsenical fume after the dedusting that produces in the roasting of sulphide ore and other mineral or the smelting process in the colored metallurgical industrial is generally at SO
2Adopt before the relieving haperacidity spent acid or waste water washing method to remove wherein arsenic.The spent acid that obtains and waste water discharge through after the harmless treatment, because arsenic content is few in the flue gas, the quantity of slag that finally obtains also seldom is easy to process.But need to increase treatment process and the investment of increase system and operating cost.
In the colored metallurgical industrial, the SO in some technical process flue gas
2Concentration is low, directly extracting sulfuric acid.By containing heavy metal and SO after the dedusting
2Flue gas, conventional method are to wash cooling with water before the hot flue gas desulfurization, produce to contain in a large number NH
3The difficult waste water of-N and heavy metal need to be to containing NH
3The waste water of-N and heavy metal is processed, and investment and operating cost are high.Or hot flue gas through the sour gas agent for capturing, remove absorbent and strong oxidizer ozone or hydrogen peroxide and carry out desulfurization, removing heavy-metal, exist desulfurization, removing heavy-metal is incomplete, the shortcoming that is difficult to reclaim, be 201110091281.2 Chinese invention patent " flue gas desulfurization and denitrification removing heavy-metal integral method and special equipment " such as application number, also exist the shortcomings such as investment, operating cost height.
Summary of the invention
Main purpose of the present invention provides a kind of method and device of nonferrous metallurgy flue gas desulfurization removing heavy-metal, can effectively remove flue dust, SO in the flue gas
2, arsenic and heavy metal, thereby 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 may further comprise the steps:
A, wet cooling dedusting: the nonferrous metallurgy flue gas is carried out spray washing with ammonium sulfate, make the temperature of nonferrous metallurgy flue gas be down to 45～55 ℃, and utilize the surface-active of ammonium sulfate that the smoke catching that contains heavy metal ion in the nonferrous metallurgy flue gas is got off, must contain liquid after the washing of heavy metal ion flue dust of the heavy metal ion flue dust that is insoluble to ammonium sulfate and vitriolization ammonium salt solution;
B, remove SO
2Gas: the flue gas behind the ammonium sulfate spray washing, spray with ammonia spirit, absorb the SO in the flue gas
2Gas generates the inferior mixed salt solution that contains ammonium sulfite and ammonium bisulfite; Be absorbed SO
2Flue gas up to standard behind the gas externally discharges, and the part of the inferior mixed salt solution of gained obtains ammonium sulfate through the air aeration oxidation, and this ammonium sulfate is used for the nonferrous metallurgy flue gas of the described step a of circulated sprinkling; Another part of the inferior mixed salt solution of gained is added ammonia spirit, make the part ammonium bisulfite in the inferior mixed salt solution be converted into ammonium sulfite, must mend ammonia spirit and contain ammonium sulfite and the mixed solution of ammonium bisulfite, this mixed solution is used for substituting ammonia spirit and the above-mentioned flue gas behind the ammonium sulfate spray washing of circulated sprinkling;
C, ferrite process remove heavy metal: when liquid contains the As ion after testing after the washing among the described step a, add Fe in the liquid after this washing
2+Or Fe
3+Dearsenification reagent also blasts air and reacts, and makes the sediment that the As in the liquid and part Pb ion generate the ferrospinel structure after the washing, filters and removes precipitation, gets filtered fluid;
D, deep removal heavy metal: described filtered fluid is added heavy metal removing agent react, make the heavy metal ion in the filtered fluid generate the slightly solubility precipitation, filter and remove precipitation, get pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure gets ammonium sulfate fertilizer behind concentrate drying.
As preferably, when liquid does not contain the As ion after testing after the washing among the described step a, will omit described step c, liquid adding heavy metal removing agent reacts after directly will washing, make the heavy metal ion in the rear liquid of washing generate the slightly solubility precipitation, filter to remove and precipitate, get pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure gets ammonium sulfate fertilizer behind concentrate drying.
As preferably, the heavy metal ion after the described step a washing in the liquid comprises any combination of Pb, Cd, Cu, Ni or Zn ion.
As preferably, in inferior mixed salt solution, add the amount of ammonia spirit and the mole total amount of the SO2 gas in the described absorption flue gas among the described step b and be complementary.
As preferably, the Fe among the described step c
2+Dearsenification reagent is selected from FeSO
4Or FeCl
2In a kind of.
As preferably, the Fe among the described step c
3+Dearsenification reagent is selected from Fe
2(SO
4)
3Or FeCl
3In a kind of.
As preferably, add Fe among the described step c
2+Or Fe
3+After the inventory of dearsenification reagent and the described washing in the liquid mole total amount of As, Pb ion be complementary.
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 a kind of.
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 the described flue gas washing section, this first spray equipment be provided with the first circulating pump between described sulfite oxidation segment pipe is connected; Described flue gas washing section be provided with the first delivery pump between described removing heavy-metal pipe reactor is connected; 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 the absorber portion, this second spray equipment be provided with the second circulating pump between described circulating slot pipeline is connected; Be provided with the first aerator in the described sulfite oxidation section, and this first aerator is connected with the first air compressor for aeration; Described removing heavy-metal reactor be provided with the second delivery pump between described removing heavy-metal agent dissolving tank pipeline is connected; Described removing heavy-metal reactor is connected in described filter by circulating line, and is provided with the 3rd delivery pump at described removing heavy-metal reactor to the pipeline of described filter delivered solution.
As preferably, described device also comprises dearsenification reactor and Hydrodearsenic Catalyst dissolving tank; Described dearsenification reactor be provided with the first delivery pump between described flue gas washing segment pipe is connected; Described dearsenification reactor be provided with the 4th delivery pump between described Hydrodearsenic Catalyst dissolving tank pipeline is connected; Be provided with the second aerator in the 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) can effectively remove flue dust, SO in the nonferrous metallurgy flue gas after adopting said method and device
2, arsenic and heavy metal, make fume emission can not cause environmental pollution; (2) the present invention adopts the wet cooling dust collecting process, ammonium sulfate washs the high-temperature flue gas (about 150 ℃) that has just discharged after utilizing regeneration, make the temperature of flue gas be reduced to 45～55 ℃, ammonium sulfate concentration is improved, and the SO in the recovered flue gas better
2And heavy metal, got rid of the drawback that traditional water goes to wash cooling, make in the art production process and can not produce NH
3-N has saved the investment of water washing dedust, electric demist, has also saved to contain NH
3Wastewater treatment investment and the operating cost of-N and heavy metal; (3) the present invention adopts ferrite process to remove the technique of heavy metal, and the heavy metal that contains in the ammonium sulfate of salt content greater than 420g/L is effectively removed; (4) adopt method of the present invention, can make heavy metal form solids of sedimentation, be beneficial to recycling; (5) apparatus of the present invention can according to whether contain the As ion in the liquid after the washing and when dearsenification react what of production precipitation capacity, flexible adjusting process flow process, thus avoided the waste raw materials for production, saved the product cost.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Among the 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-the first air compressor, 11-the second air compressor, 12-the first circulating pump, 13-the second circulating pump, 14-the 3rd delivery pump, 15-the 4th delivery pump, 16-the second delivery pump, 17-the first delivery pump, 18-the first aerator, 19-the second aerator.
The specific embodiment
Below in conjunction with drawings and Examples the method for the invention and device are done a detailed description, but not as limitation of the present invention.
Embodiment one
Be delivered to the nonferrous metallurgy flue gas in the flue gas washing section 1 of desulfurized dust collection column by pipeline, carry out spray washing with ammonium sulfate, make the temperature of nonferrous metallurgy flue gas be down to 50 ℃, and utilize the surface-active of ammonium sulfate that the smoke catching that contains heavy metal ion in the nonferrous metallurgy flue gas is got off, must contain liquid after the washing of heavy metal ion flue dust of the heavy metal ion flue dust that is insoluble to ammonium sulfate and vitriolization ammonium salt solution; Flue gas behind the ammonium sulfate spray washing enters into SO by the gas distributor on flue gas washing section 1 top
2In the absorber portion 2, then spray with ammonia spirit, absorb the SO in the flue gas
2Gas generates the inferior mixed salt solution that contains ammonium sulfite and ammonium bisulfite; Be absorbed SO
2Flue gas up to standard behind the gas passes through SO
2The chimney on absorber portion 2 tops discharges, part in the inferior mixed salt solution of gained is after pipeline is delivered to sulfite oxidation section 3, open the first air compressor 10, make the first aerator 18 that places in the sulfite oxidation section 3 and be connected with the first air compressor 10 produce air aeration, the oxidation of the inferior mixed salt solution aeration of this part is obtained ammonium sulfate, this ammonium sulfate is delivered to by the first circulating pump 12 and places flue gas washing section 1 first spray equipment, is cycled to used in spray nonferrous metallurgy flue gas; After another part of the inferior mixed salt solution of gained is delivered to circulating slot 4 by the first circulating pump 12, add and the SO that absorbs in the flue gas
2The ammonia spirit that the mole total amount of gas is complementary, make the part ammonium bisulfite in the inferior mixed salt solution of this part be converted into ammonium sulfite, must mend ammonia spirit and contain ammonium sulfite and the mixed solution of ammonium bisulfite, this mixed solution is delivered to by the second circulating pump 13 and places SO
2The second spray equipment in the absorber portion 2, the replacement ammonia spirit is cycled to used in the SO in the above-mentioned absorption flue gas of spray-absorption
2Gas; Liquid after the resulting washing in the flue gas washing section 1 is detected, when not containing the As ion, will wash rear liquid by the first delivery pump 17 and be delivered in the removing heavy-metal reactor 6, again with the (NH in the removing heavy-metal agent dissolving tank 8
4)
2S solution is delivered in the removing heavy-metal reactor 6 by the second delivery pump 16 and reacts, make the heavy metal ion such as Pb, Cd, Cu, Ni and Zn that contain in the rear liquid of washing generate the slightly solubility precipitation, then will after reacted washing, be delivered in the filter 9 by liquid by the 3rd delivery pump 14, filter and remove precipitation, get pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure gets ammonium sulfate fertilizer behind concentrate drying.
Embodiment two
Be delivered to the nonferrous metallurgy flue gas in the flue gas washing section 1 of desulfurized dust collection column by pipeline, carry out spray washing with ammonium sulfate, make the temperature of nonferrous metallurgy flue gas be down to 45 ℃, and utilize the surface-active of ammonium sulfate that the smoke catching that contains heavy metal ion in the nonferrous metallurgy flue gas is got off, must contain liquid after the washing of heavy metal ion flue dust of the heavy metal ion flue dust that is insoluble to ammonium sulfate and vitriolization ammonium salt solution; Flue gas behind the ammonium sulfate spray washing enters into SO by the gas distributor on flue gas washing section 1 top
2In the absorber portion 2, then spray with ammonia spirit, absorb the SO in the flue gas
2Gas generates the inferior mixed salt solution that contains ammonium sulfite and ammonium bisulfite; Be absorbed SO
2Flue gas up to standard behind the gas passes through SO
2The chimney on absorber portion 2 tops discharges, part in the inferior mixed salt solution of gained is after pipeline is delivered to sulfite oxidation section 3, open the first air compressor 10, make the first aerator 18 that places in the sulfite oxidation section 3 and be connected with the first air compressor 10 produce air aeration, the oxidation of the inferior mixed salt solution aeration of this part is obtained ammonium sulfate, this ammonium sulfate is delivered to by the first circulating pump 12 and places flue gas washing section 1 first spray equipment, is cycled to used in spray nonferrous metallurgy flue gas; After another part of the inferior mixed salt solution of gained is delivered to circulating slot 4 by the first circulating pump 12, adds and absorb SO in the flue gas
2The ammonia spirit that the mole total amount of gas is complementary, make the part ammonium bisulfite in the inferior mixed salt solution of this part be converted into ammonium sulfite, must mend ammonia spirit and contain ammonium sulfite and the mixed solution of ammonium bisulfite, this mixed solution is delivered to by the second circulating pump 13 and places SO
2The second spray equipment in the absorber portion 2, the replacement ammonia spirit is cycled to used in the SO in the above-mentioned absorption flue gas of spray-absorption
2Gas; Liquid after the resulting washing in the flue gas washing section 1 is detected, when containing the As ion, will wash rear liquid by the first delivery pump 17 and be delivered in the dearsenification reactor 5, the FeSO that will be complementary with the mole total amount of As, Pb ion in the liquid after the washing
4Be dissolved in the Hydrodearsenic Catalyst dissolving tank 7, by the 4th delivery pump 15 with FeSO
4Solution is delivered in the dearsenification reactor 5, start the second air compressor 11, make the second aerator 19 that places in the dearsenification reactor 5 and be connected with the second air compressor 11 produce aeration, react, make the sediment that the As in the liquid and part Pb ion generate the ferrospinel structure after the washing, liquid after the reacted washing of dearsenification is delivered in the filter 9 by the 3rd delivery pump 14, filters and remove precipitation, get filtered fluid; This filtered fluid is delivered in the removing heavy-metal reactor 6 by pipeline, again with the Na in the removing heavy-metal agent dissolving tank 8
2S solution is delivered in the removing heavy-metal reactor 6 by the second delivery pump 16 and reacts, make the heavy metal ion such as Pb, Cd, Cu, Ni and Zn that contain in the filtered fluid generate the slightly solubility precipitation, then will be delivered in the filter 9 through reacted filtered fluid by the 3rd delivery pump 14, filter and remove precipitation, get pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure gets ammonium sulfate fertilizer behind concentrate drying.
Embodiment three
Be delivered to the nonferrous metallurgy flue gas in the flue gas washing section 1 of desulfurized dust collection column by pipeline, carry out spray washing with ammonium sulfate, make the temperature of nonferrous metallurgy flue gas be down to 55 ℃, and utilize the surface-active of ammonium sulfate that the smoke catching that contains heavy metal ion in the nonferrous metallurgy flue gas is got off, must contain liquid after the washing of heavy metal ion flue dust of the heavy metal ion flue dust that is insoluble to ammonium sulfate and vitriolization ammonium salt solution; Flue gas behind the ammonium sulfate spray washing enters into SO by the gas distributor on flue gas washing section 1 top
2In the absorber portion 2, then spray with ammonia spirit, absorb the SO in the flue gas
2Gas generates the inferior mixed salt solution that contains ammonium sulfite and ammonium bisulfite; Be absorbed SO
2Flue gas up to standard behind the gas passes through SO
2The chimney on absorber portion 2 tops discharges, part in the inferior mixed salt solution of gained is after pipeline is delivered to sulfite oxidation section 3, open the first air compressor 10, make the first aerator 18 that places in the sulfite oxidation section 3 and be connected with the first air compressor 10 produce air aeration, the oxidation of the inferior mixed salt solution aeration of this part is obtained ammonium sulfate, this ammonium sulfate is delivered to by the first circulating pump 12 and places flue gas washing section 1 first spray equipment, is cycled to used in spray nonferrous metallurgy flue gas; After another part of the inferior mixed salt solution of gained is delivered to circulating slot 4 by the first circulating pump 12, adds and absorb SO in the flue gas
2The ammonia spirit that the mole total amount of gas is complementary, make the part ammonium bisulfite in the inferior mixed salt solution of this part be converted into ammonium sulfite, must mend ammonia spirit and contain ammonium sulfite and the mixed solution of ammonium bisulfite, this mixed solution is delivered to by the second circulating pump 13 and places SO
2The second spray equipment in the absorber portion 2, the replacement ammonia spirit is cycled to used in the SO in the above-mentioned absorption flue gas of spray-absorption
2Gas; Liquid after the resulting washing in the flue gas washing section 1 is detected, when containing the As ion, will wash rear liquid by the first delivery pump 17 and be delivered in the dearsenification reactor 5, the FeSO that will be complementary with the mole total amount of As, Pb ion in the liquid after the washing
4Be dissolved in the Hydrodearsenic Catalyst dissolving tank 7, by the 4th delivery pump 15 with FeSO
4Solution is delivered in the dearsenification reactor 5, start the second air compressor 11, make the second aerator 19 that places in the dearsenification reactor 5 and be connected with the second air compressor 11 produce aeration, react, make the sediment that the As in the liquid and part Pb ion generate the ferrospinel structure after the washing, when this sediment is less, directly liquid after the reacted washing of dearsenification is delivered in the removing heavy-metal reactor 6 by the 3rd delivery pump 14, again with the NH in the removing heavy-metal agent dissolving tank 8
4H
2PO
4Solution is delivered in the removing heavy-metal reactor 6 by the second delivery pump 16 and reacts, make the heavy metal ion such as Pb, Cd, Cu, Ni and Zn that contain in the rear liquid of washing generate the slightly solubility precipitation, then will after reacted washing, be delivered in the filter 9 by liquid by the 3rd delivery pump 14, filter and remove precipitation, get pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure gets ammonium sulfate fertilizer behind concentrate drying.
It should be noted that at last, above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although with reference to above-described embodiment the present invention is had been described in detail, those skilled in the art are to be understood that, still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the claim scope of the present invention.
Claims (10)
1. the method for a nonferrous metallurgy flue gas desulfurization removing heavy-metal, it is characterized in that: the method may further comprise the steps:
A, wet cooling dedusting: the nonferrous metallurgy flue gas is carried out spray washing with ammonium sulfate, make the temperature of nonferrous metallurgy flue gas be down to 45～55 ℃, and utilize the surface-active of ammonium sulfate that the smoke catching that contains heavy metal ion in the nonferrous metallurgy flue gas is got off, must contain liquid after the washing of heavy metal ion flue dust of the heavy metal ion flue dust that is insoluble to ammonium sulfate and vitriolization ammonium salt solution;
B, remove SO
2Gas: the flue gas behind the ammonium sulfate spray washing, spray with ammonia spirit, absorb the SO in the flue gas
2Gas generates the inferior mixed salt solution that contains ammonium sulfite and ammonium bisulfite; Be absorbed SO
2Flue gas up to standard behind the gas externally discharges, and the part of the inferior mixed salt solution of gained obtains ammonium sulfate through the air aeration oxidation, and this ammonium sulfate is used for the nonferrous metallurgy flue gas of the described step a of circulated sprinkling; Another part of the inferior mixed salt solution of gained is added ammonia spirit, make the part ammonium bisulfite in the inferior mixed salt solution be converted into ammonium sulfite, must mend ammonia spirit and contain ammonium sulfite and the mixed solution of ammonium bisulfite, this mixed solution is used for substituting ammonia spirit and the above-mentioned flue gas behind the ammonium sulfate spray washing of circulated sprinkling;
C, ferrite process remove heavy metal: when liquid contains the As ion after testing after the washing among the described step a, add Fe in the liquid after this washing
2+Or Fe
3+Dearsenification reagent also blasts air and reacts, and makes the sediment that the As in the liquid and part Pb ion generate the ferrospinel structure after the washing, filters and removes precipitation, gets filtered fluid;
D, deep removal heavy metal: described filtered fluid is added heavy metal removing agent react, make the heavy metal ion in the filtered fluid generate the slightly solubility precipitation, filter and remove precipitation, get pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure gets ammonium sulfate fertilizer behind concentrate drying.
2. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1, it is characterized in that: when liquid does not contain the As ion after testing after the washing among the described step a, to omit described step c, liquid adding heavy metal removing agent reacts after directly will washing, make the heavy metal ion in the rear liquid of washing generate the slightly solubility precipitation, filter and remove precipitation, get pure ammonium sulfate; Collect gained and precipitate recycling to be recycled, the ammonium sulfate that gained is pure gets ammonium sulfate fertilizer behind 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 the described step a washing in the 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: add the amount of ammonia spirit and the SO in the described absorption flue gas among the described step b in inferior mixed salt solution
2The mole total amount of gas is complementary.
5. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1 is characterized in that: the Fe among the described step c
2+Dearsenification reagent is selected from FeSO
4Or FeCl
2In a kind of.
6. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1 is characterized in that: the Fe among the described step c
3+Dearsenification reagent is selected from Fe
2(SO
4)
3Or FeCl
3In a kind of.
7. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1 is characterized in that: add Fe among the described step c
2+Or Fe
3+After the inventory of dearsenification reagent and the described washing in the liquid mole total amount of As, Pb ion be complementary.
8. the method for nonferrous metallurgy flue gas desulfurization removing heavy-metal according to claim 1 and 2, it is characterized in that: 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 a kind of.
9. a device that is used for the described nonferrous metallurgy flue gas desulfurization of claim 1 removing heavy-metal method 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 the described flue gas washing section (1), this first spray equipment be provided with the first circulating pump (12) between described sulfite oxidation section (3) pipeline is connected; Described flue gas washing section (1) be provided with the first delivery pump (17) between described removing heavy-metal reactor (6) pipeline is connected; 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), this second spray equipment be provided with the second circulating pump (13) between described circulating slot (4) pipeline is connected; Be provided with the first aerator (18) in the 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) be provided with the second delivery pump (16) between described removing heavy-metal agent dissolving tank (8) pipeline is connected; Described removing heavy-metal reactor (6) is connected in described filter (9) by circulating line, and is provided with the 3rd delivery pump (14) at described removing heavy-metal reactor (6) to the pipeline of described filter (9) delivered solution.
10. the device of nonferrous metallurgy flue gas desulfurization removing heavy-metal method according to claim 9 is characterized in that: also comprise dearsenification reactor (5) and Hydrodearsenic Catalyst dissolving tank (7); Described dearsenification reactor (5) be provided with the first delivery pump (17) between described flue gas washing section (1) pipeline is connected; Described dearsenification reactor (5) be provided with the 4th delivery pump (15) between described Hydrodearsenic Catalyst dissolving tank (7) pipeline is connected; Be provided with the second aerator (19) in the 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).
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| CN105797559A (en) * | 2016-03-23 | 2016-07-27 | 昆明理工大学 | Method for treating non-ferrous metal smelting off-gas through copper smelting fume |
| CN105858685A (en) * | 2016-03-30 | 2016-08-17 | 云南驰宏资源综合利用有限公司 | Method for deep arsenic removal of flue gas desulfurization byproduct ammonium sulfate |
| 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 |
| CN110280125A (en) * | 2019-06-27 | 2019-09-27 | 上海交通大学 | One kind containing arsenic and SO3Flue gas during smelting dry cleaning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5811066A (en) * | 1994-11-18 | 1998-09-22 | Steag Aktiengesellschaft | Method and device for scrubbing flue 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 |
| CN101579602A (en) * | 2009-06-12 | 2009-11-18 | 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
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5811066A (en) * | 1994-11-18 | 1998-09-22 | Steag Aktiengesellschaft | Method and device for scrubbing flue 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 |
| CN101579602A (en) * | 2009-06-12 | 2009-11-18 | 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 |
Non-Patent Citations (1)
| Title |
|---|
| 李军: "铁氧体沉淀法处理重金属废水", 《电镀与环保》 * |
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| 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 |
| CN105797559A (en) * | 2016-03-23 | 2016-07-27 | 昆明理工大学 | Method for treating non-ferrous metal smelting off-gas through copper smelting fume |
| 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 |
| CN105858685A (en) * | 2016-03-30 | 2016-08-17 | 云南驰宏资源综合利用有限公司 | Method for deep arsenic removal of flue gas desulfurization byproduct ammonium sulfate |
| 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 |
| CN110280125A (en) * | 2019-06-27 | 2019-09-27 | 上海交通大学 | One kind containing arsenic and SO3Flue gas during smelting dry cleaning method |
| CN110280125B (en) * | 2019-06-27 | 2022-03-11 | 上海交通大学 | Containing arsenic and SO3Dry purification method of smelting flue gas |
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