CN213103752U - Cyaniding tailings comprehensive treatment and resource recovery device - Google Patents
Cyaniding tailings comprehensive treatment and resource recovery device Download PDFInfo
- Publication number
- CN213103752U CN213103752U CN202021990181.4U CN202021990181U CN213103752U CN 213103752 U CN213103752 U CN 213103752U CN 202021990181 U CN202021990181 U CN 202021990181U CN 213103752 U CN213103752 U CN 213103752U
- Authority
- CN
- China
- Prior art keywords
- tailings
- membrane contactor
- resource recovery
- recovery device
- filter
- 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
Images
Abstract
The utility model provides a cyanide tailings is synthesized and is administered and resource recovery device, including the ore pulp storage tank of storing cyanide tailings, the pressure filter of utensil automatic backwash function and the tailings storehouse of depositing tailings up to standard, the ore pulp storage tank connects to the input port of the pressure filter of utensil automatic backwash function, and the solid output of pressure filter is to the tailings storehouse, and the filter-pressing barren liquor and/or the backwash water liquid output pipeline of pressure filter connect to membrane contactor processing system, and membrane contactor processing system output pipeline connects to the recovery liquid case. The utility model discloses based on pressure filter and membrane contactor processing system's setting, can effectively administer the cyaniding tailings, both make the cyaniding tailings reach the general tailings pile standard of "the gold trade contains cyanogen waste residue pollution control technical specification" (HJ943-2018) in china, make the cyanogen in the tailings retrieve with the sodium cyanide form again and recycle.
Description
Technical Field
The utility model relates to a cyanide tailings is synthesized and is administered and the resource recovery technique, especially relates to a cyanide tailings is synthesized and is administered and resource recovery device.
Background
The cyaniding gold extraction method has the advantages of high gold recovery rate, simple process and low production cost, so the cyaniding gold extraction method is widely used for extracting gold from gold ores. However, the cyaniding gold extraction method produces a large amount of cyaniding gold tailings while extracting gold, and because the cyaniding gold tailings contain extremely toxic cyanide, the cyaniding gold extraction method is listed in the national hazardous waste list. According to the treatment requirement of hazardous waste, the existing cyanided gold tailings are generally treated by a safe landfill method.
Therefore, most of the cyanides in cyanide tailings in the prior art are treated and not recycled, for example, a method for reducing the cyanide content in gold smelting cyanide tailings disclosed in the patent application No. CN201811545804.4, and a method for harmlessly treating high-concentration cyanide-containing arsenic-containing tailings in gold smelting enterprises disclosed in the patent application No. CN201711291393.6 are only treated after the cyanide is neutralized as much as possible, and no process or device for recycling the cyanide is provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a cyanide tailings is synthesized and is administered and resource recovery device, this cyanide tailings is synthesized and is administered and resource recovery device pass through the setting of pressure filter and membrane contactor processing system, can be to the effective treatment of cyanide tailings, both make the cyanide tailings reach general tailings pile up the standard, make the cyanogen in the tailings again with the sodium cyanide form, the valuable metal is retrieved with the form of composite metal salt and is recycled.
The utility model discloses a following technical scheme can realize.
The utility model provides a pair of cyanide tailings is synthesized and is administered and resource recovery device, including the ore pulp storage tank of storing cyanide tailings, the pressure filter of utensil automatic backwash function and the tailings storehouse of depositing tailings up to standard, the ore pulp storage tank connects to the input port of the pressure filter of utensil automatic backwash function, and the solid of pressure filter is exported to the tailings storehouse, and the filter-pressing barren liquor and/or the backwash water liquid output pipeline of pressure filter connect to membrane contactor processing system, discharges through membrane contactor processing system.
An acidification reaction system is arranged on a pipeline between the filter press and the membrane contactor treatment system; a post-stage filter is also connected between the acidification reaction system and the membrane contactor treatment system; the post-stage filter is a belt filter or a filter press.
The input of the acidification reaction system is connected with an addition liquid port, and the addition liquid port is connected with at least one of an acidifying agent, a calcium remover, a flocculating agent and a metal precipitator.
And the solid of the post-stage filter is output to a metal recovery box.
The acidifying agent is sulfuric acid, the calcium removing agent is oxalic acid, and the metal precipitator is sodium hydrosulfide or sodium sulfide; and the pH value of the liquid output by the acidification reaction system is 1-3.
The membrane contactor treatment system is a hollow fiber membrane contactor: the pre-stage of the pipeline of the membrane contactor treatment system is also connected with a potential adjustment reaction tank, and the input of the potential adjustment reaction tank is connected with a potential adjustment liquid tank.
The membrane contactor treatment system is connected with absorption liquid; the absorption liquid is sodium hydroxide.
The output pipeline of the membrane contactor treatment system is also connected to a back washing liquid pipe and/or an evaporative crystallizer; an evaporation condensate water output pipeline of the evaporation crystallizer is connected to the acidification reaction system or the liquid adding port; the backwash liquid pipe output is connected to the filter press.
The evaporation crystallizer is an MVR evaporator or a multi-effect evaporator.
The cyaniding tailings are at least one of full mud cyaniding tailings, cyaniding dump leaching tailings, cyaniding leaching tailings of sulfide ores and gold concentrate boiling roasting cyaniding leaching residues of a gold dressing plant.
The beneficial effects of the utility model reside in that: based on the arrangement of a filter press and a membrane contactor treatment system, the method can effectively treat the cyaniding tailings, not only enables the cyaniding tailings to reach the general tailing stockpiling standard, but also enables cyanogen in the tailings to be recycled in a sodium cyanide form; based on the setting of the acidification reaction system, the valuable metals in the tailings can be further effectively recovered, the service life of the membrane contactor treatment system is effectively prolonged, and the integral continuous normal operation time is prolonged.
Drawings
Fig. 1 is a schematic view of the connection principle of the present invention;
FIG. 2 is a schematic flow chart of the present invention in use;
FIG. 3 is a schematic connection diagram of an embodiment of the present invention;
fig. 4 is a schematic connection diagram of another embodiment of the present invention.
In the figure: 11-ore pulp storage tank, 12-filter press, 13-tailings reservoir, 14-backwash liquid pipe, 21-acidification reaction system, 22-membrane contactor treatment system, 23-metal recovery box, 24-liquid adding port, 25-liquid recovery box, 26-post filter, 27-potential adjustment reaction tank, 28-potential adjustment liquid box and 29-evaporative crystallizer.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
The device for comprehensive treatment and resource recovery of cyanide tailings as shown in fig. 1 comprises an ore pulp storage tank 11 for storing cyanide tailings, a filter press 12 with an automatic backwashing function and a tailings pond 13 for storing standard tailings, wherein the ore pulp storage tank 11 is connected to an input port of the filter press 12 with the automatic backwashing function, solids of the filter press 12 are output to the tailings pond 13, and a filter pressing barren liquor and/or backwashing water liquor output pipeline of the filter press 12 is connected to a membrane contactor treatment system 22 and is discharged through the membrane contactor treatment system 22.
An acidification reaction system 21 is arranged on a pipeline between the filter press 12 and the membrane contactor treatment system 22; a post-stage filter 26 is connected between the acidification reaction system 21 and the membrane contactor treatment system 22; the post-stage filter 26 is a belt filter or a filter press.
The input of the acidification reaction system 21 is connected with an addition liquid port 24, and the addition liquid port 24 is connected with at least one of an acidifying agent, a calcium remover, a flocculating agent and a metal precipitator.
The latter stage filter 26 solids are output to the metal recovery tank 23.
The acidifying agent is sulfuric acid, the calcium removing agent is oxalic acid, and the metal precipitator is sodium hydrosulfide or sodium sulfide; the pH value of the liquid output by the acidification reaction system 21 is 1-3.
Membrane contactor treatment system 22 is a hollow fiber membrane contactor: a potential adjustment reaction tank 27 is connected to the front stage of the pipeline of the membrane contactor processing system 22, and a potential adjustment liquid tank 28 is connected to the potential adjustment reaction tank 27.
The membrane contactor treatment system 22 is connected to the absorption liquid; the absorption liquid is sodium hydroxide.
The output pipeline of the membrane contactor treatment system 22 is also connected to a back washing liquid pipe 14 and/or an evaporative crystallizer 29; an evaporation condensate water output pipeline of the evaporation crystallizer 29 is connected to the acidification reaction system 21 or the liquid adding port 24; the backwash tube 14 output is connected to the filter press 12.
The purified water output pipeline of the membrane contactor treatment system 22 is also connected with a recovery liquid tank 25.
The evaporative crystallizer 29 is an MVR evaporator or a multiple effect evaporator.
The cyaniding tailings are at least one of full mud cyaniding tailings, cyaniding dump leaching tailings, cyaniding leaching tailings of sulfide ores and gold concentrate boiling roasting cyaniding leaching residues of a gold dressing plant.
Based on the above, the utility model discloses adopt in essence to accomplish comprehensive treatment and the resource recovery to cyaniding tailings as shown in figure 2 step, promptly: the solid-liquid separation and washing of the cyanide tailing mixed water are carried out in the filter press 12, the obtained solid is the standard-reaching tailing, the washing liquid for treating the tailing enters an acidification reaction system for acidification and/or flocculation precipitation, valuable metal solid precipitate is obtained for recovery, the acidified liquid enters a membrane contactor treatment system for hollow membrane separation treatment, the purified water for separating cyanogen is recycled in the filter press, the sodium cyanide solution for recovering the cyanogen is recycled in a cyanidation working section, therefore, all resources in the cyanidation tailing treatment process are recycled, the zero discharge of wastewater is realized in the whole process, and the continuous operation can be realized only by supplementing a small amount of water.
Example 1
With the above arrangement, as shown in fig. 1, the backwash water liquid output pipeline of the membrane contactor treatment system 22 is respectively connected to the recycle liquid tank 25 and the backwash liquid pipe 14, so that the recycle liquid tank 25 contains sodium cyanide recycle liquid, and the backwash liquid pipe 14 contains backwash liquid for backwashing the filter press 12.
In this embodiment, the washing liquid of the filter press 12 is treated by the membrane contactor treatment system 22, wherein cyanogen is recovered in the form of sodium cyanide, and the treated liquid backwashes the filter press 12, saving water resource consumption, whereby cyanided tailings are effectively treated, are environmentally friendly, and meet tailings stockpiling standards.
Example 2
By adopting the scheme, as shown in fig. 3, a backwash water liquid output pipeline of the membrane contactor treatment system 22 is respectively connected to the recycle liquid tank 25 and the evaporative crystallizer 29, so that the recycle liquid tank 25 contains sodium cyanide recycle liquid, and the evaporated water of the evaporative crystallizer 29 flows back to the acidification reaction system 21 for liquid supplementation.
In this embodiment, the washing liquid of the filter press 12 is treated by the membrane contactor treatment system 22, wherein cyanogen is recovered in the form of sodium cyanide, and the treated liquid supplements the liquid of the acidification reaction system 21, thereby saving water resource consumption, effectively treating cyanide tailings, having no harm to the environment, and achieving the tailings stockpiling standard.
Example 3
As shown in fig. 4, in conjunction with the solutions of examples 1 and 2, the backwash water liquid output lines of the membrane contactor treatment system 22 are connected to the recycle liquid tank 25, the backwash liquid pipe 14 and the evaporative crystallizer 29, respectively.
After the system is circulated for many times, the water after the membrane treatment enters an MVR evaporator or a multi-effect evaporator to evaporate and remove sodium sulfate in the liquid, and the evaporated water enters an acidification reaction system.
In general, since the filter-pressing barren solution of the filter press 12 contains a large amount of cyanide ions and cyanides, the barren solution may be introduced directly into a preceding process to reuse the cyanogens, and there is no need to treat the cyanide ions.
Therefore, the utility model discloses most preferred embodiment lies in, ore pulp storage tank 11 connects to the input port of backwash pressure filter 12, the solid output of backwash pressure filter 12 is to tailings storehouse 13, backwash pressure filter 12's pressure filtration water supplies the cyaniding workshop section to use for the cyanide barren solution, backwash liquid output pipeline connects in acidizing reaction system, solid-liquid mixture advances the belt filtration after the acidizing, it gets into membrane contactor processing system 22 after the adjustment of electric potential to filter water, membrane contactor processing system 22 output pipeline connects to cyanide recycle-liquid case 25, backwash pressure filter 12 and/or evaporation crystallizer 29, the evaporation water gets into acidizing reaction system 21.
In conclusion, adopt the utility model discloses a scheme, the cyanide-containing waste liquid that filters out the cyaniding tail pulp pressure with membrane contactor processing system 22 as the core is handled, not only cyanogen can be retrieved, and valuable metal also effectively retrieves, owing to carry out the acidizing earlier and retrieve valuable metal, consequently the condition that two main factors of existence of strong basicity and valuable metal cause negative effects to membrane contactor processing system 22 work efficiency and maintenance (change membrane module) frequency is effectively solved, membrane contactor processing system 22's maintenance frequency reduces by a wide margin, further ensure normal serialization operation.
Claims (10)
1. The utility model provides a cyanide tailings is synthesized and is administered and resource recovery unit, includes ore pulp storage tank (11), the pressure filter (12) of the automatic backwash function of utensil of storing cyanide tailings and deposits tailings storehouse (13) of tailings up to standard, its characterized in that: the ore pulp storage tank (11) is connected to an input port of a filter press (12) with an automatic backwashing function, solids of the filter press (12) are output to a tailings pond (13), and filter pressing barren liquor and/or backwashing water liquid output pipelines of the filter press (12) are connected to a membrane contactor treatment system (22) and are discharged through the membrane contactor treatment system (22).
2. The cyanidation tailings comprehensive treatment and resource recovery device of claim 1, characterized in that: an acidification reaction system (21) is arranged on a pipeline between the filter press (12) and the membrane contactor treatment system (22); a post-stage filter (26) is connected between the acidification reaction system (21) and the membrane contactor treatment system (22); the post-stage filter (26) is a belt filter or a filter press.
3. The cyanidation tailings comprehensive treatment and resource recovery device of claim 2, characterized in that: the input of the acidification reaction system (21) is connected with an addition port (24), and the addition port (24) is connected with at least one of an acidifying agent, a calcium remover, a flocculating agent and a metal precipitator.
4. The cyanidation tailings comprehensive treatment and resource recovery device of claim 2, characterized in that: and the solid of the post-stage filter (26) is output to a metal recovery box (23).
5. The cyanidation tailings comprehensive treatment and resource recovery device of claim 3, characterized in that: the acidifying agent is sulfuric acid, the calcium removing agent is oxalic acid, and the metal precipitator is sodium hydrosulfide or sodium sulfide; the pH value of the liquid output by the acidification reaction system (21) is 1-3.
6. The cyanidation tailings comprehensive treatment and resource recovery device of claim 1, characterized in that: the membrane contactor treatment system (22) is a hollow fiber membrane contactor: a potential adjusting reaction tank (27) is connected to the front stage of the pipeline of the membrane contactor processing system (22), and a potential adjusting liquid box (28) is connected to the input of the potential adjusting reaction tank (27).
7. The cyanidation tailings comprehensive treatment and resource recovery device of claim 6, characterized in that: the membrane contactor treatment system (22) is connected with absorption liquid; the absorption liquid is sodium hydroxide.
8. The cyanidation tailings comprehensive treatment and resource recovery device of claim 1, characterized in that: the output pipeline of the membrane contactor treatment system (22) is also connected to a back washing liquid pipe (14) and/or an evaporative crystallizer (29); an evaporation condensate water output pipeline of the evaporation crystallizer (29) is connected to the acidification reaction system (21) or the liquid adding port (24); the output of the backwash liquid pipe (14) is connected to the filter press (12).
9. The cyanidation tailings comprehensive treatment and resource recovery device of claim 8, characterized in that: the evaporation crystallizer (29) is an MVR evaporator or a multi-effect evaporator.
10. The cyanidation tailings comprehensive treatment and resource recovery device of claim 1, characterized in that: the cyaniding tailings are at least one of full mud cyaniding tailings, cyaniding dump leaching tailings, cyaniding leaching tailings of sulfide ores and gold concentrate boiling roasting cyaniding leaching residues of a gold dressing plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021990181.4U CN213103752U (en) | 2020-09-11 | 2020-09-11 | Cyaniding tailings comprehensive treatment and resource recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021990181.4U CN213103752U (en) | 2020-09-11 | 2020-09-11 | Cyaniding tailings comprehensive treatment and resource recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213103752U true CN213103752U (en) | 2021-05-04 |
Family
ID=75661709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021990181.4U Active CN213103752U (en) | 2020-09-11 | 2020-09-11 | Cyaniding tailings comprehensive treatment and resource recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213103752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381611A (en) * | 2022-01-14 | 2022-04-22 | 山东国大黄金股份有限公司 | Method for comprehensively recovering copper and gold from liquid obtained after copper separation of sulfur concentrate cyanidation tailings |
-
2020
- 2020-09-11 CN CN202021990181.4U patent/CN213103752U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114381611A (en) * | 2022-01-14 | 2022-04-22 | 山东国大黄金股份有限公司 | Method for comprehensively recovering copper and gold from liquid obtained after copper separation of sulfur concentrate cyanidation tailings |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103964609A (en) | Membrane treatment method of landfill leachate concentrate | |
| CN103482783A (en) | Treatment process for plumbic acid waste water generated in production process of lead storage batteries | |
| CN108529789B (en) | Method for treating copper-containing electroplating wastewater and recovering copper by using sulfide precipitation method | |
| CN102311181A (en) | Embrane method and acidifying combined treatment reuse cyanide barren solution technology and method | |
| CN105541016A (en) | Inorganic-ammonium-salt-containing wastewater treatment system and recycling method thereof | |
| CN213103752U (en) | Cyaniding tailings comprehensive treatment and resource recovery device | |
| CN111704302A (en) | Electroplating wastewater zero-discharge treatment method and equipment thereof | |
| CN113088702B (en) | Method for recovering valuable elements from acid leaching solution of roasting slag of gold-containing sulfur concentrate | |
| CN108793568A (en) | A kind of stainless steel cleaning containing acid wastewater zero discharge waste water unit equipment | |
| US20040026326A1 (en) | Liquid treatment method and apparatus | |
| US2147009A (en) | Cyanidation | |
| RU2443791C1 (en) | Conditioning method of cyanide-containing reusable solutions for processing of gold-copper ores with extraction of gold and copper and regeneration of cyanide | |
| CN105330064A (en) | Zinc-containing cyanide barren solution treatment method | |
| CN207483528U (en) | Garbage percolation liquid treating system | |
| CN215592791U (en) | Pickling iron rust effluent disposal system | |
| CN102443709B (en) | Nickel ion separating and recovering method of aluminum material surface treatment waste water | |
| CN214141986U (en) | Processing system for reducing and solidifying resource recycling of electrolytic aluminum slag leachate | |
| CN102442736B (en) | Nickel ion separation and recovery device for treating wastewater on surface of aluminium material | |
| CN212425687U (en) | Electroplating effluent and PCB waste water's high-efficient pretreatment systems | |
| CN201276463Y (en) | Sewage treatment system extracting gold by calcination cyanation | |
| CN203319810U (en) | High-concentration hydrometallurgy wastewater circulating recovery emission reduction system | |
| CN216337094U (en) | Fly ash eluent treatment and resource comprehensive utilization system | |
| CN109761383B (en) | Recycling and treating method and recycling and treating system for heavy metal wastewater | |
| CN209411966U (en) | The processing system of acid heavy metal wastewater | |
| CN108862714A (en) | A kind of chemical precipitation-gas floatation process removes cyanogen and Treatment of cyanogen-contained wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |