CN220300818U - Purifying and recycling system for Jin Hantong cyanide solution - Google Patents
Purifying and recycling system for Jin Hantong cyanide solution Download PDFInfo
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- CN220300818U CN220300818U CN202322061464.0U CN202322061464U CN220300818U CN 220300818 U CN220300818 U CN 220300818U CN 202322061464 U CN202322061464 U CN 202322061464U CN 220300818 U CN220300818 U CN 220300818U
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- cyanide
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- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000004064 recycling Methods 0.000 title claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002562 thickening agent Substances 0.000 claims abstract description 27
- 239000010802 sludge Substances 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 21
- 239000008394 flocculating agent Substances 0.000 claims abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 28
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 26
- 238000010521 absorption reaction Methods 0.000 claims description 24
- DOBRDRYODQBAMW-UHFFFAOYSA-N copper(i) cyanide Chemical compound [Cu+].N#[C-] DOBRDRYODQBAMW-UHFFFAOYSA-N 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 14
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 14
- 239000002351 wastewater Substances 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000000746 purification Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000706 filtrate Substances 0.000 claims description 7
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 239000006228 supernatant Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000002893 slag Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 230000004913 activation Effects 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010494 dissociation reaction Methods 0.000 claims description 3
- 230000005593 dissociations Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 238000010979 pH adjustment Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 claims 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 238000011049 filling Methods 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000002341 toxic gas Substances 0.000 description 10
- 238000011084 recovery Methods 0.000 description 7
- 238000007599 discharging Methods 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 5
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000004065 wastewater treatment Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- AQMRBJNRFUQADD-UHFFFAOYSA-N copper(I) sulfide Chemical compound [S-2].[Cu+].[Cu+] AQMRBJNRFUQADD-UHFFFAOYSA-N 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 102000000634 Cytochrome c oxidase subunit IV Human genes 0.000 description 1
- 108050008072 Cytochrome c oxidase subunit IV Proteins 0.000 description 1
- 208000010476 Respiratory Paralysis Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- ZFXTZKMYLJXJDY-UHFFFAOYSA-N copper;oxalonitrile Chemical compound [Cu].N#CC#N ZFXTZKMYLJXJDY-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Removal Of Specific Substances (AREA)
Abstract
The utility model discloses a purifying and recycling system for a lifting Jin Hantong cyanide solution, which belongs to the technical field of water treatment and comprises a raw water collecting tank, a stirring reaction barrel, a closed deep cone thickener, a flocculating agent dispenser, a sludge concentrating tank, a filter press, an acid-base regulating tank and an overflow recycling tank.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a purifying and recycling system for extracting Jin Hantong cyanide solution.
Background
A large amount of copper-cyanide-containing wastewater is generated in the production processes of mineral dressing, nonferrous metal mineral smelting, metal processing, electroplating, chemical industry, coking, heat treatment and the like, and Cu (CN) is contained besides free cyanide with high toxicity 2 - The copper in the form is directly discharged into the external environment, so that serious environmental pollution is caused. And cyanide belongs to highly toxic substances, and the cyanide discharged into the environment can block the oxygen transfer function of cytochrome oxidase after entering the human body, thereby causing respiratory paralysis and even death and seriously endangering the health of the human body.
Disclosure of Invention
In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to provide a copper-cyanide-containing wastewater treatment system capable of effectively reducing and recycling cyanide in wastewater, avoiding environmental pollution and endangering human health.
To achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a purifying and recycling system for extracting Jin Hantong cyanide solution, which comprises a raw water collecting tank, a stirring reaction barrel, a closed deep cone thickener, a flocculant dispensing machine, a sludge concentration tank, a filter press, an acid-base regulating tank and an overflow recycling tank, wherein the stirring reaction barrel is arranged on the raw water collecting tank;
the raw water collecting tank is connected with the stirring reaction tank through a water inlet pipe, sewage is discharged into the stirring reaction tank for stirring, two groups of feeding pipes and dispensing pipes are respectively connected to the stirring reaction tank, the dispensing pipes are connected with a flocculating agent dispensing machine, a feeding pipe is connected between the stirring reaction tank and a sealed deep cone thickener, the sealed deep cone thickener discharges concentrated sludge into a sludge concentration tank through a sludge discharge pipe under the action of a sludge discharge valve, generated supernatant is discharged into an acid-base regulating tank, extremely small amounts of hydrogen cyanide and other toxic gases which are overflowed out of the sealed deep cone thickener are discharged into an absorption tower under the action of a fan, the absorption liquid is pumped to the acid-base regulating tank at regular intervals, the supernatant of the sealed deep cone thickener overflows into the acid-base regulating tank for pH adjustment and then is discharged into an overflow recycling tank and returns to a gold extraction procedure, the sludge concentration tank discharges the sludge into a filter press for treatment through a feeding pump to obtain high-grade copper slag product, the filter pressing liquid returns to the acid-base regulating tank, and hydrogen cyanide and other toxic gases which may be generated in the filter pressing process are discharged into the absorption tower under the action of the fan.
The utility model adopts the preferable technical scheme that two groups of feeding pipes are respectively connected with a sodium sulfide dosing system and a sulfuric acid dosing system.
The preferable technical scheme of the utility model is that the top side of the closed deep cone thickener is provided with a transmission mud scraper to drive the mud scraping plate in the closed deep cone thickener to work.
The preferred technical scheme of the utility model is that the sodium sulfide dosing system and the sulfuric acid dosing system sequentially add sodium sulfide and sulfuric acid into a stirring reaction barrel through a dosing pipe to react with wastewater so as to achieve dissociation of copper-cyanide complex and generation of copper sulfide slag, and achieve regeneration and activation of cyanide in the copper-cyanide complex, wherein cyanide is basically in aqueous solution.
The preferable technical scheme of the utility model is that the pressure filtrate generated by the filter press is discharged into an acid-base regulating tank under the action of a filtrate drain pump, pH meters are arranged in the stirring reaction barrel and the acid-base regulating tank, and a small amount of hydrogen cyanide and other toxic gases generated in the filter pressing process are discharged into an absorption tower under the action of a fan.
The preferable technical scheme of the utility model is that the device further comprises a gas supply air compressor and a pressure storage tank, wherein the gas supply air compressor is connected with the pressure storage tank, and the pressure storage tank is connected with a feed pump.
The preferable technical scheme of the utility model is that a spraying assembly is arranged at the top side of the inside of the absorption tower, and alkaline absorption liquid is arranged at the bottom.
Compared with the prior art, the utility model has the beneficial effects that: when copper-cyanide-containing wastewater is treated, firstly, introducing wastewater collected in a raw water collecting tank into a stirring reaction barrel through a water inlet pipe, introducing sodium sulfide into the stirring reaction barrel through a sodium sulfide dosing system to form cuprous sulfide precipitate, adding sulfuric acid into the stirring reaction barrel through a sulfuric acid dosing system to enable the pH value of a reaction solution to reach 4.5-6.5 so as to dissociate copper-cyanide complex, enabling most of ionic cyanide broken by the copper-cyanide complex to be left in water, absorbing part of generated hydrogen cyanide gas into an absorption tower under the action of a fan for purification and recovery, discharging purified tail gas into the atmosphere after reaching standards, introducing a flocculating agent into a closed deep cone thickener together through a dispensing pipe for concentration, discharging sludge generated after concentration into a sludge concentration tank for secondary concentration under the action of a sludge discharge valve, discharging generated underflow into a filter press for filter press treatment, obtaining copper concentrate products after filter press, discharging generated underflow into an acid-base adjusting tank for pH value adjustment to above cyanide regeneration, discharging regenerated liquid into a water conservation pump for recycling into a water conservation pool, and recycling the recycled water conservation pool for generating concentrated clear liquid into a pump, and concentrating the overflow pool for recycling; the copper-cyanide-containing wastewater can effectively reduce cyanide in the wastewater by adopting the treatment process of sulfuration, acidification, coagulation sedimentation, cyanide regeneration and recycling, so that environmental pollution and harm to human health are avoided, synchronous recovery of sodium cyanide and copper is realized, the recovery rate of sodium cyanide and copper is high, economic value is created, the whole process is environment-friendly, and no three wastes are generated.
The copper-cyanide-containing wastewater treatment system provided by the utility model can effectively reduce and recycle cyanide in wastewater, and avoid environmental pollution and harm to human health.
Drawings
FIG. 1 is a schematic diagram of a copper-cyanogen-containing wastewater treatment system provided in an embodiment of the utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. a raw water collection tank; 11. a water inlet pipe; 2. stirring the reaction barrel; 21. a sodium sulfide dosing system; 22. a sulfuric acid dosing system; 3. sealing the deep cone thickener; 31. driving a mud scraper; 32. a mud valve; 4. a flocculant dispensing machine; 5. a sludge concentration tank; 51. a feed pump; 6. a filter press; 7. an absorption tower; 71. a blower; 8. an acid-base regulating tank; 9. and (5) overflowing and recycling the water in the pool.
Detailed Description
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
The Jin Hantong cyanide solution purifying and recycling system comprises a raw water collecting tank 1, a stirring reaction barrel 2, a closed deep cone thickener 3, a flocculating agent dispensing machine 4, a sludge concentration tank 5, a filter press 6, an acid-base regulating tank 8 and an overflow recycling tank 9;
the raw water collecting tank 1 is connected with the stirring reaction barrel 2 through a water inlet pipe 11, sewage is discharged into the stirring reaction barrel 2 for stirring, two groups of feeding pipes and dispensing pipes are respectively connected to the stirring reaction barrel 2, the two groups of feeding pipes are respectively connected with a sodium sulfide dosing system 21 and a sulfuric acid dosing system 22, the sodium sulfide dosing system 21 and the sulfuric acid dosing system 22 sequentially add sodium sulfide and sulfuric acid into the stirring reaction barrel 2 through the dosing pipes for reaction with the wastewater so as to achieve dissociation of copper-cyanide complex and generation of copper sulfide slag, regeneration and activation of cyanide in the copper-cyanide complex, and the cyanide is basically in aqueous solution;
the stirring reaction barrel 2 is connected with a flocculating agent dispensing machine 4, a feeding pipe is connected between the stirring reaction barrel 2 and a closed deep cone thickener 3, the closed deep cone thickener 3 discharges concentrated sludge into a sludge concentration tank 5 through a sludge discharge pipe under the action of a sludge discharge valve 32, the generated supernatant is discharged into an acid-base regulating tank 8, a very small amount of hydrogen cyanide and other toxic gases which overflow and scatter out are discharged into an absorption tower 7 under the action of a fan 71 in the closed deep cone thickener 3, absorption liquid is pumped into the acid-base regulating tank 8 at regular intervals, the supernatant of the closed deep cone thickener 3 overflows into the acid-base regulating tank 8 for pH adjustment and is discharged into an overflow recycling tank 9 and returns to a gold extraction process, the sludge concentration tank 5 discharges sludge into a filter press 6 through a feeding pump 51 for filter pressing treatment to obtain a high-grade copper slag product, the filter pressing liquid returns into the acid-base regulating tank 8, and a small amount of hydrogen cyanide and other toxic gases possibly generated in the filter pressing process are discharged into the absorption tower 7 under the action of the fan 71.
When copper-cyanide-containing wastewater is treated, firstly, wastewater collected in a raw water collecting tank 1 is introduced into a stirring reaction barrel 2 through a water inlet pipe 11, sodium sulfide and drug adding system 21 can dissolve sodium sulfide in the stirring reaction barrel 2 to enable copper to generate cuprous sulfide sediment, a sulfuric acid and drug adding system 22 adds sulfuric acid into the stirring reaction barrel 2 to enable the pH value of a reaction solution to reach 4.5-6.5 so as to dissociate copper-cyanide complex, so that most of ionic cyanide broken by the copper-cyanide complex is left in water, a small amount of hydrogen cyanide and other toxic gases are produced under the action of a fan 71, the hydrogen cyanide and other toxic gases are absorbed into an absorption tower 7 for purification and recovery, purified tail gas is discharged into the atmosphere after reaching the standard, a flocculant dispensing machine 4 adds a flocculating agent into the stirring reaction barrel 2 through a dispensing pipe, and then is led into a closed deep cone thickener 3 together for concentration, sludge produced after concentration is discharged into a sludge concentration tank 5 under the action of a mud valve 32 for concentration again, the produced bottom flow is subjected to filter-press treatment in a water press 6, a small amount of hydrogen cyanide and other toxic gases possibly produced in the filter press process are left in water press filtration process, the copper and other toxic gases are discharged into a filter press 7 for recycling through a filter press, the absorption tower 7 is recycled, the water is recycled into an overflow water tank 9, the pH value is produced, and the recovered liquid is recycled, and the recovered liquid is pumped into an overflow water tank 9 is recovered, and the recovered liquid is recycled 9 is recovered, and concentrated into the water is recovered; the copper-cyanide-containing wastewater can effectively reduce cyanide in the wastewater by adopting the treatment process of sulfuration, acidification, coagulation sedimentation, cyanide regeneration and recycling, so that environmental pollution and harm to human health are avoided, synchronous recovery of sodium cyanide and copper is realized, the recovery rate of sodium cyanide and copper is high, economic value is created, the whole process is environment-friendly, and no three wastes are generated.
As a possible implementation manner of the solution, preferably, the top side of the sealed deep cone thickener 3 is provided with a transmission mud scraper 31, so as to drive the mud scraping plate inside the sealed deep cone thickener 3 to work, in the working process of the sealed deep cone thickener 3, the transmission mud scraper 31 is started, and the transmission mud scraper 31 is utilized to stir the mud in the sealed deep cone thickener 3, so that the mobility of the mud is increased, the mud deposition is avoided, the mud discharge opening is blocked, the mud discharge efficiency is affected, and the mud discharge persistence and the mud discharge effect are ensured.
As a possible implementation manner of the scheme, preferably, the press filtrate generated by the press filter 6 is discharged into the acid-base regulating tank 8 under the action of the filtrate drain pump, the stirring reaction barrel 2 and the acid-base regulating tank 8 are provided with pH meters, a small amount of hydrogen cyanide and other toxic gases generated in the press filtration process are discharged into the absorption tower 7 under the action of the fan 71, and the pH value of the press filtrate discharged into the acid-base regulating tank 8 is detected by the pH meters, so that the pH value is regulated to be more than 9, thereby cyanide regeneration is performed and subsequent recovery is facilitated.
As a possible implementation manner of the solution, it is preferable that the system further includes a gas supply air compressor and a pressure storage tank, the gas supply air compressor is connected with the pressure storage tank, the pressure storage tank is connected with the feed pump 51, the gas supply air compressor and the pressure storage tank are matched with the feed pump 51, and the sludge after concentration in the sludge concentration tank 5 is discharged into the filter press 6 for filter pressing treatment, so as to obtain a copper concentrate product.
As a possible implementation mode of the scheme, preferably, a spraying component is arranged on the top side of the inside of the absorption tower 7, an alkaline absorption liquid is arranged at the bottom of the inside of the absorption tower, and the hydrogen cyanide gas is purified and recovered by utilizing the action of the spraying component and the absorption liquid, so that the hydrogen cyanide gas is discharged into the atmosphere after the purification purpose is achieved, and the air pollution is avoided.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. The utility model is not to be limited by the specific embodiments disclosed herein, and other embodiments are within the scope of the utility model as defined by the claims of the present application.
Claims (7)
1. The utility model provides a carry Jin Hantong cyanogen solution purification recycling system which characterized in that: the device comprises a raw water collecting tank (1), a stirring reaction barrel (2), a closed deep cone thickener (3), a flocculating agent dispensing machine (4), a sludge concentrating tank (5), a filter press (6), an acid-base regulating tank (8) and an overflow recycling tank (9);
raw water collecting tank (1) is connected with stirring reaction bucket (2) through inlet tube (11), is discharged sewage to stirring reaction bucket (2) in the stirring, be connected with two sets of filling tubes and dispensing tube on stirring reaction bucket (2) respectively, dispensing tube is connected with flocculating agent dispenser (4), be connected with the inlet tube between stirring reaction bucket (2) and airtight deep cone thickener (3), airtight deep cone thickener (3) are discharged into mud concentration pond (5) through the mud pipe under the effect of mud valve (32), and the supernatant that produces is discharged into acid-base equalizing basin (8) in mud concentration pond (5), and the absorption tower (7) are discharged into under the effect of fan (71) in the cyanide hydrogen that will spill in airtight deep cone thickener (3), and the absorption liquid regularly pumps to acid-base equalizing basin (8), in airtight deep cone thickener (3) supernatant overflows to acid-base equalizing basin (8) and carries out pH adjustment and then is discharged into overflow retrieval and utilization pond (9) and gold, and the high-grade copper acid-base equalizing basin (51) is discharged into filter-press filtration sediment (8) through mud pump (71), and the high-grade mud is discharged into filter-press filtration sediment (8) through absorption tower (71) under the effect of producing, and the high-grade mud is discharged into filter-press filtration sediment (8).
2. The purification and recycling system for extracting Jin Hantong cyanide solution according to claim 1, wherein:
the two groups of feeding pipes are respectively connected with a sodium sulfide dosing system (21) and a sulfuric acid dosing system (22).
3. The purification and recycling system for extracting Jin Hantong cyanide solution according to claim 1, wherein:
the top side of the closed deep cone thickener (3) is provided with a transmission mud scraper (31) to drive a mud scraper in the closed deep cone thickener (3) to work.
4. The purification and recycling system for extracting Jin Hantong cyanide solution according to claim 2, wherein:
the sodium sulfide dosing system (21) and the sulfuric acid dosing system (22) sequentially add sodium sulfide and sulfuric acid into the stirring reaction barrel (2) through dosing pipes to react with wastewater so as to achieve dissociation of copper-cyanide complex and generation of copper sulfide slag, and achieve regeneration and activation of cyanide in the copper-cyanide complex, wherein cyanide is basically in aqueous solution.
5. The purification and recycling system for extracting Jin Hantong cyanide solution according to claim 1, wherein:
the pressure filtrate generated by the filter press (6) is discharged into an acid-base regulating tank (8) under the action of a filtrate drain pump, pH meters are arranged in the stirring reaction barrel (2) and the acid-base regulating tank (8), and hydrogen cyanide generated in the filter pressing process is discharged into an absorption tower (7) under the action of a fan (71).
6. The purification and recycling system for extracting Jin Hantong cyanide solution according to claim 1, wherein:
the device further comprises a gas supply air compressor and a pressure storage tank, wherein the gas supply air compressor is connected with the pressure storage tank, and the pressure storage tank is connected with a feed pump (51).
7. The purification and recycling system for extracting Jin Hantong cyanide solution according to claim 1, wherein:
the top side of the inside of the absorption tower (7) is provided with a spraying component, and the bottom is provided with alkaline absorption liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322061464.0U CN220300818U (en) | 2023-08-02 | 2023-08-02 | Purifying and recycling system for Jin Hantong cyanide solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322061464.0U CN220300818U (en) | 2023-08-02 | 2023-08-02 | Purifying and recycling system for Jin Hantong cyanide solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220300818U true CN220300818U (en) | 2024-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322061464.0U Active CN220300818U (en) | 2023-08-02 | 2023-08-02 | Purifying and recycling system for Jin Hantong cyanide solution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220300818U (en) |
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2023
- 2023-08-02 CN CN202322061464.0U patent/CN220300818U/en active Active
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