CN204625740U - A kind of gold industry thiocyanate-regeneration recovery system - Google Patents
A kind of gold industry thiocyanate-regeneration recovery system Download PDFInfo
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- CN204625740U CN204625740U CN201520317125.7U CN201520317125U CN204625740U CN 204625740 U CN204625740 U CN 204625740U CN 201520317125 U CN201520317125 U CN 201520317125U CN 204625740 U CN204625740 U CN 204625740U
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- 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
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Abstract
The utility model discloses a kind of gold industry thiocyanate-regeneration recovery system, be made up of regeneration reactor, reprocessing cycle pump, buffering steel basin, draw-off pump, absorption tower, alkali lye circulation tank, NaOH solution circulating pump, blower fan, pump or gravity flow is relied on to connect between each equipment, thiocyanate-regeneration rate is more than 95%, the prussiate rate of recovery more than 95%, the sodium cyanide generated all recycles in cyaniding and leaching process, and the effluent cycle after regeneration uses.The utility model, while removal thiocyanate-, reclaims the prussiate generated, and improves the leaching yield of gold, and technical process is simple, and remarkable in economical benefits, system run all right, easily realizes the governing system of industrial application.
Description
Technical field
The utility model relates to environmental protection technical field, particularly a kind of thiocyanate-regeneration of gold industry recovery system.
Background technology
The difficult-treating gold mine resource reserve of China enriches, expert generally thinks about about 1000 ~ 1200 tons in recent years, be exploited to a certain extent although have every year, but along with exploitation, the resource in deep is constantly verified again, and the ratio of domestic difficult-treating gold mine resource shared by the retained reserve verified is considered to about 1/3 always.The feature of difficult-treating gold mine is containing very high sulphur, arsenic and organic carbon, although these impurity through pre-treatment (bio-oxidation, roasting, alkali or acid hot pressing) after major parts harmful to the leaching of gold general are removed, in cyanidation-leaching process, still consume a large amount of sodium cyanides and generate thiocyanate-.Lean solution recycle to extinction technique achieves prussiate recycling, lean solution zero release to a certain extent, major part cyanide complexes (thiocyanate-) turns back to cyaniding workshop section, the thiocyanate-returning cyaniding workshop section does not only play the effect of leaching gold, the leaching yield of gold can be reduced on the contrary, have a strong impact on technic index, affect the economic benefit of enterprise.
Summary of the invention
The utility model mainly affects the problem of production technique index in order to solve the reuse of gold industry thiocyanate-, while removal thiocyanate-, reclaim the prussiate generated, improve the leaching yield of gold, it is simple that the utility model provides a kind of technical process, remarkable in economical benefits, system run all right, easily realizes the governing system of industrial application.
The utility model is made up of regeneration reactor, reprocessing cycle pump, buffering steel basin, draw-off pump, absorption tower, alkali lye circulation tank, NaOH solution circulating pump and blower fan the utility model, wherein regeneration reactor is circular apparatus, regeneration reactor top arranges inlet mouth and air outlet, technique fluid inlet, leakage fluid dram, dosing mouth and self-circulation fluid inlet are set in the middle part of regeneration reactor, first manhole and self-circulation liquid outlet are set bottom regeneration reactor, in the middle part of regeneration reactor, flow-stopping plate is set, prevents the short stream of sewage; Buffering steel basin is the device of circular strip stirring system, and buffering steel basin top arranges the first fluid inlet and the first dosing mouth, arranges the first liquid outlet bottom buffering steel basin.Alkali lye circulation tank is circular apparatus, and two ends are end socket, and top arranges fluid inlet and air communication mouth, and bottom arranges liquid outlet.Absorption tower is circular apparatus, top, absorption tower sets out gas port and alkali lye self-circulation fluid inlet, middle part arranges gas UNICOM mouth and the second manhole, in the middle part of absorption tower, filler is housed, ensure that absorption liquid fully contacts absorption with gas, alkali lye fluid inlet, gas feed, liquid outlet and the second manhole are set bottom absorption tower; The import of reprocessing cycle pump is communicated with the self-circulation liquid outlet of regeneration reactor, and reprocessing cycle pump outlet is communicated with the self-circulation fluid inlet of regeneration reactor, ensures that sewage fully reacts in the reactor.The import of draw-off pump is communicated with the first liquid outlet of buffering steel basin, and the sump pump after process recycles to cyaniding and leaching process by draw-off pump.The import of NaOH solution circulating pump is communicated with the liquid outlet of alkali lye circulation tank, the outlet of NaOH solution circulating pump is communicated with the self-circulation fluid inlet on absorption tower, the import of blower fan is communicated with the pneumatic outlet of regeneration reactor, the air outlet of blower fan is communicated with the inlet mouth on absorption tower, the pneumatic outlet on absorption tower is communicated with the inlet mouth of regeneration reactor, guarantee gas closed-circulation absorbs, and prevents discharge from causing environmental pollution.In addition, in order to ensure can to flow automatically smoothly in absorption tower, the gas UNICOM mouth on absorption tower is communicated with alkali lye circulation tank gas UNICOM mouth.
What described regeneration reactor added is pH value adjusting agent and can be combined the medicament generating hydrogen cyanide gas with thiocyanate-, as the vitriol oil, ozone, Colt ' s acid treatment etc.;
Liquid in described absorption unit is the absorption liquid of Absorbable rod hydrogen cyanide gas, as sodium hydroxide solution etc.;
What described buffering steel basin added is neutralizing agent, as milk of lime etc.;
Described pump is chemical pump, magnetic drive pump etc.
The beneficial effects of the utility model:
The thiocyanate-comprehensive regulation that gold manufacturing enterprises produces by the utility model, and the prussiate that reclaiming produces, improve the rate of recovery of enterprise's gold, increase the economic benefit of enterprise, this technical process is very simple, thiocyanate-treatment effect is better, and higher than 95%, prussiate organic efficiency is higher, higher than 99%, system run all right, easily realizes industrial application, has broad application prospects.
Accompanying drawing explanation
Fig. 1 is Structure and energy schema of the present utility model;
Fig. 2 is regeneration reactor structure iron of the present utility model.
Fig. 3 is absorption tower of the present utility model structure iron.
Embodiment
Refer to Fig. 1, shown in Fig. 2 and Fig. 3, the utility model is by regeneration reactor 1, reprocessing cycle pump 2, buffering steel basin 3, draw-off pump 4, absorption tower 5, alkali lye circulation tank 6, NaOH solution circulating pump 7 and blower fan 8 form, wherein regeneration reactor 1 is circular apparatus, regeneration reactor 1 top arranges inlet mouth 14 and air outlet 15, technique fluid inlet 10 is set in the middle part of regeneration reactor 1, leakage fluid dram 12, dosing mouth 11 and self-circulation fluid inlet 16, first manhole 9 and self-circulation liquid outlet 17 are set bottom regeneration reactor 1, flow-stopping plate 13 is set in the middle part of regeneration reactor 1, prevent the short stream of sewage, buffering steel basin 3 is the device of circular strip stirring system, and buffering steel basin 3 top arranges the first fluid inlet 31 and the first dosing mouth 32, arranges the first liquid outlet 33 bottom buffering steel basin 3, alkali lye circulation tank 6 is circular apparatus, and two ends are end socket, and top arranges fluid inlet and air communication mouth, and bottom arranges liquid outlet, absorption tower 5 is circular apparatus, top, absorption tower 5 sets out gas port 18 and alkali lye self-circulation fluid inlet 25, middle part arranges gas UNICOM mouth 24 and the second manhole 22, filler 23 is housed in the middle part of absorption tower 5, ensure that absorption liquid fully contacts absorption with gas, alkali lye fluid inlet 19, gas feed 20, liquid outlet 21 and the second manhole 22 are set bottom absorption tower 5,
The import of reprocessing cycle pump 2 is communicated with the self-circulation liquid outlet 17 of regeneration reactor 1, and the outlet of reprocessing cycle pump 2 is communicated with the self-circulation fluid inlet 16 of regeneration reactor 1, ensures that sewage fully reacts in the reactor.The import of draw-off pump 4 is communicated with the first liquid outlet 33 of buffering steel basin 3, and the sump pump after process recycles to cyaniding and leaching process by draw-off pump 4.The import of NaOH solution circulating pump 7 is communicated with the liquid outlet of alkali lye circulation tank 6, the outlet of NaOH solution circulating pump 7 is communicated with the self-circulation fluid inlet 25 on absorption tower 5, the import of blower fan 8 is communicated with the pneumatic outlet 15 of regeneration reactor 1, the air outlet of blower fan 8 is communicated with the inlet mouth 20 on absorption tower 5, the pneumatic outlet 18 on absorption tower 5 is communicated with the inlet mouth 14 of regeneration reactor 1, guarantee gas closed-circulation absorbs, and prevents discharge from causing environmental pollution.In addition, in order to ensure can to flow automatically smoothly in absorption tower 5, the gas UNICOM mouth 24 on absorption tower 5 is communicated with alkali lye circulation tank 6 gas UNICOM mouth.
What described regeneration reactor 1 added is pH value adjusting agent and can be combined the medicament generating hydrogen cyanide gas with thiocyanate-, as the vitriol oil, ozone, Colt ' s acid treatment etc.;
Liquid in described absorption tower 5 is the absorption liquid of Absorbable rod hydrogen cyanide gas, as sodium hydroxide solution etc.;
What described buffering steel basin 3 added is neutralizing agent, as milk of lime etc.;
Described pump is chemical pump, magnetic drive pump etc.
The working process of the present embodiment:
In absorption tower 5, add alkaline absorption solution, absorption liquid can flow in alkali lye circulation tank 6 certainly, opens NaOH solution circulating pump 7.The sewage of thiocyanate enters in regeneration reactor 1, adds pH value and to size mixing agent and regenerative agent, opens reprocessing cycle pump 2, fully reacts in the reactor.Meanwhile, open blower fan 8, delivered in absorption tower 5 by the hydrogen cyanide gas of generation and fully absorb, sump pump in buffering steel basin 3, then by draw-off pump 4, recycles to cyaniding and leaching process by reacted sewage self-flowing.Absorption liquid after absorption drains into cyaniding and leaching process by NaOH solution circulating pump 7, as leaching medicament.
Claims (1)
1. a gold industry thiocyanate-regeneration recovery system, it is characterized in that: be by regeneration reactor (1), reprocessing cycle pump (2), buffering steel basin (3), draw-off pump (4), absorption tower (5), alkali lye circulation tank (6), NaOH solution circulating pump (7) and blower fan (8) composition, wherein regeneration reactor (1) is circular apparatus, regeneration reactor (1) top arranges inlet mouth (14) and air outlet (15), regeneration reactor (1) middle part arranges technique fluid inlet (10), leakage fluid dram (12), dosing mouth (11) and self-circulation fluid inlet (16), regeneration reactor (1) bottom arranges the first manhole (9) and self-circulation liquid outlet (17), regeneration reactor (1) middle part arranges flow-stopping plate (13), the device that buffering steel basin (3) is circular strip stirring system, buffering steel basin (3) top arranges the first fluid inlet (31) and the first dosing mouth (32), and buffering steel basin (3) bottom arranges the first liquid outlet (33), alkali lye circulation tank (6) is circular apparatus, and two ends are end socket, and top arranges fluid inlet and air communication mouth, and bottom arranges liquid outlet, absorption tower (5) is circular apparatus, absorption tower (5) top sets out gas port (18) and alkali lye self-circulation fluid inlet (25), middle part arranges gas UNICOM mouth (24) and the second manhole (22), filler (23) is equipped with at middle part, absorption tower (5), ensure that absorption liquid fully contacts absorption with gas, absorption tower (5) bottom arranges alkali lye fluid inlet (19), gas feed (20), liquid outlet (21) and the second manhole (22),
The import of reprocessing cycle pump (2) is communicated with the self-circulation liquid outlet (17) of regeneration reactor (1), the outlet of reprocessing cycle pump (2) is communicated with the self-circulation fluid inlet (16) of regeneration reactor (1), ensure that sewage fully reacts in the reactor, the import of draw-off pump (4) is communicated with first liquid outlet (33) of buffering steel basin (3), sump pump after process recycles to cyaniding and leaching process by draw-off pump (4), the import of NaOH solution circulating pump (7) is communicated with the liquid outlet of alkali lye circulation tank (6), the outlet of NaOH solution circulating pump (7) is communicated with the self-circulation fluid inlet (25) of absorption tower (5), the import of blower fan (8) is communicated with the pneumatic outlet (15) of regeneration reactor (1), the air outlet of blower fan (8) is communicated with the inlet mouth (20) of absorption tower (5), the pneumatic outlet (18) on absorption tower (5) is communicated with the inlet mouth (14) of regeneration reactor (1), gas UNICOM mouth (24) on absorption tower (5) is communicated with alkali lye circulation tank 6 gas UNICOM mouth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520317125.7U CN204625740U (en) | 2015-05-15 | 2015-05-15 | A kind of gold industry thiocyanate-regeneration recovery system |
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| CN201520317125.7U CN204625740U (en) | 2015-05-15 | 2015-05-15 | A kind of gold industry thiocyanate-regeneration recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487953A (en) * | 2017-09-22 | 2017-12-19 | 长春黄金研究院 | A kind of high-efficiency pretreatment method of high concentration waste water from dyestuff containing cyanogen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487953A (en) * | 2017-09-22 | 2017-12-19 | 长春黄金研究院 | A kind of high-efficiency pretreatment method of high concentration waste water from dyestuff containing cyanogen |
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