CN110629029B - Device and process for adsorbing noble metal in acid waste liquid of gold purification process - Google Patents
Device and process for adsorbing noble metal in acid waste liquid of gold purification process Download PDFInfo
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- CN110629029B CN110629029B CN201911056988.2A CN201911056988A CN110629029B CN 110629029 B CN110629029 B CN 110629029B CN 201911056988 A CN201911056988 A CN 201911056988A CN 110629029 B CN110629029 B CN 110629029B
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- 239000007788 liquid Substances 0.000 title claims abstract description 203
- 239000002699 waste material Substances 0.000 title claims abstract description 160
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 239000010931 gold Substances 0.000 title claims abstract description 66
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 66
- 239000002253 acid Substances 0.000 title claims abstract description 61
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 42
- 238000000746 purification Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 368
- 238000001179 sorption measurement Methods 0.000 claims abstract description 116
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 70
- 238000005260 corrosion Methods 0.000 claims abstract description 50
- 230000007797 corrosion Effects 0.000 claims abstract description 50
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 49
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 49
- 239000011737 fluorine Substances 0.000 claims abstract description 49
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 20
- 238000004062 sedimentation Methods 0.000 claims description 62
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 238000003756 stirring Methods 0.000 claims description 40
- 239000000243 solution Substances 0.000 claims description 25
- 239000003814 drug Substances 0.000 claims description 20
- 239000012670 alkaline solution Substances 0.000 claims description 13
- 229920006395 saturated elastomer Polymers 0.000 claims description 10
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 238000006386 neutralization reaction Methods 0.000 claims description 7
- 239000003929 acidic solution Substances 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 6
- 230000003472 neutralizing effect Effects 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 15
- 239000011259 mixed solution Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/005—Separation by a physical processing technique only, e.g. by mechanical breaking
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a noble metal adsorption device and a noble metal adsorption process in acid waste liquid of a gold purification process, wherein the noble metal adsorption device comprises the following steps: when the waste liquid purifying device is used, the waste acid containing gold is pumped into the active carbon adsorption tank through the second corrosion-resistant fluorine magnetic pump, the waste liquid adsorbed by the active carbon returns to the waste liquid storage tank along with the pipeline G3 to form a closed circulation system, so that the active carbon can be fully changed from acid to alkaline when the gold content of the active carbon in the active carbon adsorption tank reaches above 4500G/t, the process requirements of analytical electrolysis are met, the process safety is ensured, the loss of noble metal in acid waste water in a gold purifying workshop is effectively avoided, the working efficiency is improved, the labor cost is reduced, the direct contact of workers with the active carbon is avoided, the operation safety and the environmental safety of workers are ensured, and the discharged waste acid liquid after adsorption reaches the national sewage discharge standard.
Description
Technical Field
The invention belongs to the technical field of acid gold purification, and particularly relates to a noble metal adsorption device and a noble metal adsorption process in acid waste liquid of a gold purification process.
Background
With the development of gold purification technology, a complete set of analytical electrolysis device and gold purification smelting complete set of equipment are configured in a general gold selection factory, the current relatively common gold purification equipment is a reaction kettle, the purification technology is acid purification, namely, firstly, hydrochloric acid/nitric acid impurity removal-aqua regia gold dissolving-reduction technology is adopted, a small amount of precious liquid is easy to remain in aqua regia precious liquid storage equipment and conveying pipelines in the complete set of technology and cannot be fully recovered, part of precious liquid still remains after repeated dilution for many times, even though lean liquid after the reduction of the precious liquid still remains after repeated use for many times, when the gold grade is lower than a certain value or is accumulated to a certain amount, the cost is increased, the gold is required to be discharged outwards, and the acid solution cannot be returned to alkaline leaching technological process for repeated use, and the general treatment method is to discharge waste liquid into a trench directly after absorption by an active carbon absorption device, neutralization treatment and then discharge.
The former active carbon adsorption device sets up simply crude, adopts the plastics vat to hold the active carbon, needs manual loading and unloading and transport active carbon, and complex operation to extravagant labour, work efficiency is low, and the acid pickle storage tank is not equipped with the sour gas pipeline, often leads to operational environment to worsen, influences workman's healthy. Therefore, in order to reduce manual operation, save labor cost, ensure safety, stop operators from contacting activated carbon, and further recover noble metals from the gold purification acid waste liquid, the invention of a device for adsorbing noble metals from the gold purification process acid waste liquid is urgently needed.
Disclosure of Invention
Based on the above, it is necessary to invent a device for purifying noble metals in acid wastewater of a process, which solves the problem of leakage of noble metals, thereby further improving the comprehensive recovery rate of noble metals in the system.
An adsorption device for noble metals in acid waste liquid of gold purification process, comprising: base, precipitation mechanism, waste liquid purifying mechanism, active carbon purifying mechanism, arm, its characterized in that:
the base includes: the device comprises a bottom plate, a rectangular groove, a slideway supporting rod, a slideway and a sliding block;
the sedimentation mechanism comprises: a sedimentation tank;
the waste liquid purifying mechanism comprises: the waste liquid storage tank, the second corrosion-resistant fluorine magnetic pump, the pipeline G8 and the pipeline G9;
the activated carbon purifying mechanism comprises: an activated carbon adsorption tank and a pipeline G3;
the bottom plate is provided with a rectangular groove, the bottom end of the slideway supporting rod is fixedly arranged on the bottom plate, the slideway is fixedly arranged at the upper end of the slideway supporting rod, and the sliding block is slidably arranged on the slideway; the sedimentation tank is fixedly arranged in the rectangular groove; the bottom of the waste liquid storage tank is placed on the bottom plate, the second corrosion-resistant fluorine magnetic pump is placed on the bottom plate, the water pumping pipe of the second corrosion-resistant fluorine magnetic pump extends into the waste liquid storage tank, the upper end of the pipeline G9 is connected with the water outlet on the second corrosion-resistant fluorine magnetic pump, the lower end of the pipeline G9 extends into the activated carbon adsorption tank, the front end of the pipeline G8 extends into the sedimentation tank, and the rear end of the pipeline G8 is connected with the pipeline G9; the active carbon adsorption tank is arranged on the bottom plate, one end of the pipeline G3 extends into the active carbon adsorption tank, and the other end of the pipeline G3 extends into the waste liquid storage tank; the mechanical arm is fixedly arranged on the lower end face of the sliding block.
Preferably, the base further comprises:
the device comprises a base support rod, a circuit box, a controller, an active carbon placing groove and a first stepping motor, wherein the upper end of the base support rod is fixedly arranged on the lower end surface of a bottom plate; the circuit box is arranged on the bottom plate; the controller is arranged on the bottom plate; the active carbon placing groove is placed at a position on the bottom plate close to the rear; the first stepping motor is fixedly arranged at the end part of the slideway, and a motor shaft of the first stepping motor is fixedly connected with a rotating shaft in the slideway.
Preferably, the sedimentation mechanism comprises:
the sedimentation tank comprises a drain pipe, a drain valve, a first liquid level meter, a second stepping motor, a first stirring fan blade, a NaOH storage box, a funnel, an electric cylinder, a baffle plate and a drain pipe, wherein one end of the drain pipe penetrates into the sedimentation tank; the drainage valve is arranged on the drainage pipe; the first liquid level meter is fixedly arranged in the sedimentation tank; the second stepping motor is fixedly arranged in the sedimentation tank, and a motor shaft of the second stepping motor is fixedly connected with a rotating shaft of the first stirring fan blade; the fixing rod of the NaOH storage box is fixedly arranged on the top plate of the sedimentation tank; the funnel is fixedly arranged below the NaOH storage box; the bottom end of the cylinder body of the electric cylinder is fixedly arranged on the side surface of the funnel, and the piston rod end of the electric cylinder is fixedly connected with the baffle plate; the baffle is slidably arranged in a groove in the middle of the funnel; the upper end of the drain pipe is connected with the lower end of the funnel, and the lower end of the drain pipe extends into the sedimentation tank.
Preferably, the waste liquid purifying mechanism further comprises:
the acid solution storage tank is arranged on the bottom plate; one end of the liquid inlet pipe extends into the acid solution storage tank; the first corrosion-resistant fluorine magnetic pump is arranged in the acid solution storage tank; the fixed plate of the medicament adding groove is fixedly connected with the side surface of the waste liquid storage groove; the upper end of the pipeline G5 extends into the waste liquid storage tank; one end of the pipeline G6 is fixedly connected with the water outlet of the first corrosion-resistant fluorine magnetic pump, and the other end of the pipeline G6 extends into the waste liquid storage tank; the upper end of the pipeline G7 extends into the waste liquid storage tank; the upper end of the pipeline G10 is connected with a medicine outlet of the medicine adding groove, and the lower end of the pipeline G10 extends into the waste liquid storage groove.
Preferably, the activated carbon purifying mechanism further comprises:
the device comprises an activated carbon stirring tank, a third stepping motor, a second stirring fan blade, a bag scraping knife, a water pump, a pipeline G1, a pipeline G2 and a pipeline G4, wherein the activated carbon stirring tank is arranged on a bottom plate; the third stepping motor is fixedly arranged in the activated carbon stirring tank, and a motor shaft of the third stepping motor is fixedly connected with the second stirring fan blade; the bag cutting knife is fixedly arranged on a side plate of the active carbon stirring tank; the water pump is arranged in the activated carbon stirring tank; the upper end of the pipeline G1 extends into the active carbon adsorption tank; one end of the pipeline G2 is connected with a water outlet of the water pump, and the other end of the pipeline G2 extends into the activated carbon adsorption tank; the rear end of the pipeline G4 extends into the active carbon adsorption tank.
Preferably, the mechanical arm includes:
the device comprises a first rotating joint, a fixed hinged support, a steering engine, a first telescopic sleeve, a second rotating joint, a second telescopic sleeve, a camera fixing plate, a camera and a mechanical claw, wherein a fixing part of the first rotating joint is fixedly arranged on the lower end surface of a sliding block, and a rotating part of the first rotating joint is fixedly connected with the bottom of the fixed hinged support; the steering engine is fixedly arranged on the side surface of the fixed hinged support, and the steering engine shaft is fixedly connected with the rotating shaft of the fixed hinged support; the bottom end of the sleeve of the first telescopic sleeve is fixedly connected with a rotating shaft of the fixed hinged support, and the telescopic rod end of the first telescopic sleeve is fixedly connected with a fixed part of the second rotary joint; the bottom end of the second telescopic sleeve is fixedly connected with the rotating part of the second rotating joint, and the telescopic rod end of the second telescopic sleeve is fixedly connected with the mechanical claw; the camera fixing plate is fixedly arranged on the side face of the telescopic rod of the second telescopic sleeve; the camera is fixedly arranged on the camera fixing plate.
Preferably, the method for purifying the process acid waste liquid by the noble metal adsorption device in the gold purification process acid waste liquid is characterized by comprising the following steps:
(1) Adding activated carbon and outputting the activated carbon: the activated carbon receiving operation is that firstly, valves F1, F8 and F10 are opened to ensure that other valves are closed, then activated carbon which does not contain noble metal and comes from the activated carbon stirring tank enters the activated carbon adsorption tank through a pipeline G2, water which is sent by the activated carbon and is discharged into a sedimentation tank through pipelines G9 and G8, the activated carbon is stopped being beaten after the activated carbon adsorption tank is fully stored, and the activated carbon receiving operation is finished; after the activated carbon adsorption is completed, the activated carbon output operation, namely the activated carbon after the adsorption saturation is returned to the analysis electrolysis operation, the valve F2 is opened, other valves are closed, then a clean water pump of an analysis electrolysis workshop is utilized to pump water into an activated carbon adsorption tank through a pipeline G1, after the pressure value of a pressure gauge reaches 0.45MPa, the valve F4 at the bottom of the activated carbon adsorption tank is opened, and the activated carbon for adsorbing the saturated noble metal is pumped into an analysis column of the analysis workshop through the pipeline G4.
(2) Adsorbing gold-containing waste liquid: the gold purification residual aqua regia precious liquid and the reduced waste liquid mixed liquid in the waste liquid storage tank contains gold with the grade of 2.27G/m & lt 3 & gt, on the premise of ensuring that valves F9, F8 and F3 are opened and other valves are closed, a second corrosion-resistant fluorine magnetic pump is opened, gold-containing waste liquid is pumped into an active carbon adsorption tank through a pipeline G9, when the liquid level in the active carbon adsorption tank reaches the pipe orifice of the pipeline G3, the waste liquid after the active carbon adsorption is returned to the waste liquid storage tank along with the pipeline G3 to form a closed-circuit circulation system, the second corrosion-resistant fluorine magnetic pump is utilized to circulate in this way, when the gold grade in the waste liquid is 0.001G/m & lt 3 & gt, the second corrosion-resistant fluorine magnetic pump is stopped, then the valve F9 on the pipeline G9 is closed, the valve F10 on the pipeline G8 is opened, the waste liquid in the active carbon adsorption tank is automatically flown into a workshop sedimentation tank, after the waste liquid flows out, the valve F8 is closed, the waste liquid in the waste liquid is pumped into the sedimentation tank by the second corrosion-resistant fluorine magnetic pump, naOH is added to neutralize the acid waste liquid to pH8-9, and the clear solution is discharged until the clear solution is settled.
(3) Neutralizing the gold-containing activated carbon: when the gold-containing grade of the activated carbon in the activated carbon adsorption tank reaches above 4500g/t, the activated carbon can be changed from acidity to alkalinity, so as to adapt to the requirements of analytical electrolysis process and ensure the process safety. Before neutralization, determining that the waste liquid storage tank and the waste acid liquid in the activated carbon storage tank are completely discharged, opening valves F9, F8 and F7, ensuring that other valves are closed, opening valve F5 on clear water pipeline G7, adding clear water into the waste liquid storage tank, and adding alkaline agent NaOH into the waste liquid storage tank through an agent adding tank to prepare alkaline solution. And then pumping alkaline solution into the activated carbon adsorption tank through a pipeline G9 by using a second corrosion-resistant fluorine magnetic pump, neutralizing the gold-containing activated carbon in the activated carbon adsorption tank, returning the neutralized liquid into a waste liquid storage tank through a pipeline G3 to form closed circulation until the pH value of the liquid discharged by the pipeline G3 reaches more than 9, and enabling the activated carbon in the activated carbon adsorption tank to be changed from the previous acidity to alkalinity and enter an analytical electrolysis process. The neutralized alkaline waste liquid automatically flows into a sedimentation tank from an active carbon adsorption tank, is pumped into the sedimentation tank from a waste liquid storage tank through a second corrosion-resistant fluorine magnetic pump, neutralizes acidic solution in the tank, saves medicament cost, and finally, the active carbon for adsorbing saturated noble metal is beaten into an analysis column of an analysis workshop through a pipeline G4 after the alkaline solution flows completely, so that the noble metal is analyzed.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. when the invention is used, the waste acid containing gold is pumped into the active carbon adsorption tank by the second corrosion-resistant fluorine magnetic pump, and when the liquid level in the active carbon adsorption tank reaches the pipe orifice of the pipeline G3, the waste liquid after the active carbon adsorption returns to the waste liquid storage tank along with the pipeline G3 to form a closed circulation system, so that the active carbon can fully adsorb gold in the waste liquid.
2. When the gold-containing grade of the activated carbon in the activated carbon adsorption tank reaches above 4500g/t, the activated carbon can be changed from acid to alkali so as to adapt to the requirements of analytical electrolysis process and ensure the process safety.
3. The neutralized alkaline waste liquid automatically flows into a sedimentation tank from an active carbon adsorption tank, is pumped into the sedimentation tank from a waste liquid storage tank through a second corrosion-resistant fluorine magnetic pump, and neutralizes acidic solution in the tank, thereby saving the cost of the medicament
4. And finally, beating the activated carbon absorbing saturated noble metals into an analysis column of an analysis workshop through a pipeline G4 after the alkaline solution flows cleanly, so as to analyze the noble metals. After the active carbon adsorption device is used, precious metal loss in acid wastewater of a gold purification workshop is effectively avoided, the working efficiency is improved, the labor cost is reduced, the active carbon is prevented from being directly contacted by workers, the operation safety and the environmental safety of the workers are ensured, the adsorbed waste acid liquid is neutralized and settled, and the external drainage reaches the national sewage discharge standard.
Drawings
Fig. 1, 2 and 3 are schematic views of the overall structure of the present invention.
Fig. 4 is a schematic view of a base structure of the present invention.
Fig. 5 and 6 are schematic views of a sedimentation mechanism according to the present invention.
Fig. 7 is a schematic partial structure of the sedimentation mechanism of the present invention.
Fig. 8 and 9 are schematic views of a waste liquid purifying mechanism according to the present invention.
Fig. 10 and 11 are schematic views of an activated carbon purification mechanism according to the present invention.
Fig. 12 is a schematic view of a mechanical arm structure according to the present invention.
FIG. 13 is a schematic flow chart of the system of the present invention.
Reference numerals:
1-base, 2-precipitation mechanism, 3-waste liquid purification mechanism, 4-activated carbon purification mechanism, 5-mechanical arm, 101-base plate, 102-rectangular tank, 103-base support bar, 104-circuit box, 105-controller, 106-slide support bar, 107-activated carbon holding tank, 108-slide, 109-first stepper motor, 110-slide block, 201-precipitation tank, 202-drain pipe, 203-drain valve, 204-first level gauge, 205-second stepper motor, 206-first stirring blade, 207-NaOH storage tank, 208-funnel, 209-electric cylinder, 210-baffle plate, 211-drain pipe, 301-acid solution storage tank, 302-feed pipe, 303-first corrosion-resistant fluorine magnetic pump 304-waste liquid storage tank, 305-second liquid level meter, 306-second corrosion-resistant fluorine magnetic pump, 307-medicament adding tank, G5-pipeline, G6-pipeline, G7-pipeline, G8-pipeline, G9-pipeline, G10-pipeline, F5-valve, F6-valve, F7-valve, F8-valve, F9-valve, F10-valve, 401-activated carbon adsorption tank, 402-pressure meter, 403-test meter, 404-activated carbon stirring tank, 405-third stepping motor, 406-second stirring blade, 407-bag cutter, 408-water pump, G1-pipeline, G2-pipeline, G3-pipeline, G4-pipeline, F1-valve, F2-valve, F3-valve, F4-valve, 501-first rotary joint, 502-fixed hinged support, 503-steering engine, 504-first telescopic sleeve, 505-first electric cylinder, 506-second rotary joint, 507-second telescopic sleeve, 508-second electric cylinder, 509-camera fixed plate, 510-camera, 511-gripper.
Detailed Description
To make the above-mentioned objects, features and advantages of the present invention more comprehensible, the present invention is described in detail below with reference to the accompanying drawings
The specific embodiments of (a) are described in detail. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the invention, which is therefore not limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," "first," "second," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should also be noted that the terms "upper," "lower," "front," "rear," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, or that the product of the present invention is conventionally put in place when used, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, a noble metal adsorption device in an acid waste liquid of a gold purification process comprises: base 1, precipitation mechanism 2, waste liquid purification mechanism 3, active carbon purification mechanism 4, arm 5, its characterized in that:
the base 1 comprises: a bottom plate 101, a rectangular groove 102, a slideway supporting rod 106, a slideway 108 and a sliding block 110;
the sedimentation mechanism 2 comprises: a sedimentation tank 201; specifically, the wastewater is purified and discharged through the sedimentation mechanism 2;
the waste liquid purifying mechanism 3 includes: a waste liquid storage tank 304, a second corrosion-resistant fluorine magnetic pump 306, a pipeline G8 and a pipeline G9; specifically, extracting gold purification residual aqua regia noble liquid and reduced waste liquid mixed liquid through a waste liquid purification mechanism 3 for purification;
the activated carbon purifying mechanism 4 comprises: activated carbon adsorption tank 401, line G3; specifically, extracting an active carbon mixed solution through an active carbon purifying mechanism 4 to purify gold and purify residual aqua regia noble solution and a reduced waste liquid mixed solution;
the bottom plate 101 is provided with a rectangular groove 102, the bottom end of a slideway supporting rod 106 is fixedly arranged on the bottom plate 101, a slideway 108 is fixedly arranged at the upper end of the slideway supporting rod 106, and a sliding block 110 is slidably arranged on the slideway 108; the sedimentation tank 201 is fixedly arranged in the rectangular groove 102; the bottom of the waste liquid storage tank 304 is placed on the bottom plate 101, the second corrosion-resistant fluorine magnetic pump 306 is placed on the bottom plate 101, a water suction pipe of the second corrosion-resistant fluorine magnetic pump 306 extends into the waste liquid storage tank 304, and specifically, liquid in the waste liquid storage tank 304 is pumped out through the second corrosion-resistant fluorine magnetic pump 306; the upper end of the pipeline G9 is connected with a water outlet on the second corrosion-resistant fluorine magnetic pump 306, the lower end of the pipeline G9 stretches into the activated carbon adsorption tank 401, the rear end of the pipeline G8 is connected with the pipeline G9, and the front end of the pipeline G8 stretches into the sedimentation tank 201; the active carbon adsorption tank 401 is arranged on the bottom plate 101, one end of the pipeline G3 extends into the active carbon adsorption tank 401, and the other end of the pipeline G3 extends into the waste liquid storage tank 304; the mechanical arm 5 is fixedly installed at the lower end surface of the slider 110, specifically, the opening and closing of each valve and the value of the detection instrument are controlled by the mechanical arm 5.
Further, the base 1 further includes:
the device comprises a base support rod 103, a circuit box 104, a controller 105, an active carbon placing groove 107 and a first stepping motor 109, wherein the upper end of the base support rod 103 is fixedly arranged on the lower end surface of a bottom plate 101, and the whole device is supported by the base support rod 103; the circuit box 104 is installed on the bottom plate 101, and the circuit of the device is controlled by the circuit box 104; the controller 105 is arranged on the bottom plate 101, and the controller 105 controls all parts of the whole equipment to operate in a coordinated mode; the activated carbon placing groove 107 is arranged at a position on the bottom plate 101 at a back position, and some bagged activated carbon is placed through the activated carbon placing groove 107; the first stepping motor 109 is fixedly arranged at the end part of the slideway 108, a motor shaft of the first stepping motor 109 is fixedly connected with a rotating shaft in the slideway 108, and the rotating shaft in the slideway 108 is driven to rotate by the first stepping motor 109 so as to drive the sliding block 110 to slide and further drive the mechanical arm 5 to move.
Further, the sedimentation mechanism 2 includes:
the sedimentation tank comprises a drain pipe 202, a drain valve 203, a first liquid level meter 204, a second stepping motor 205, a first stirring fan blade 206, a NaOH storage tank 207, a funnel 208, an electric cylinder 209, a baffle 210 and a drain pipe 211, wherein one end of the drain pipe 202 is deep into the sedimentation tank 201; a drain valve 203 is mounted on the drain pipe 202; the first liquid level meter 204 is fixedly arranged in the sedimentation tank 201, and the liquid level in the sedimentation tank 201 is detected by the first liquid level meter 204 to prevent liquid from overflowing; the second stepper motor 205 is fixedly arranged in the sedimentation tank 201, a motor shaft of the second stepper motor 205 is fixedly connected with a rotating shaft of the first stirring fan blade 206, and the second stepper motor 205 drives the first stirring fan blade 206 to rotate so as to stir the solution in the sedimentation tank 201 for full neutralization reaction; the fixed rod of the NaOH storage tank 207 is fixedly arranged on the top plate of the sedimentation tank 201, and solid NaOH is placed in the NaOH storage tank 207; the funnel 208 is fixedly installed under the NaOH storage tank 207; the bottom end of the cylinder body of the electric cylinder 209 is fixedly arranged on the side surface of the funnel 208, the piston rod end of the electric cylinder is fixedly connected with the baffle 210, and when neutralization reaction is needed, the baffle 210 is driven to be opened by the electric cylinder 209 at regular time so that NaOH is leaked into the sedimentation tank 201 to be neutralized with acid waste liquid in the sedimentation tank; the baffle 210 is slidably mounted in a slot in the middle of the funnel 208; the upper end of the drain tube 211 and the lower part of the funnel 208
The ends are connected, and the lower end of the drain pipe 211 extends into the sedimentation tank 201.
Further, the waste liquid purifying mechanism 3 further includes:
the acid solution storage tank 301, the liquid inlet pipe 302, the first corrosion-resistant fluorine magnetic pump 303, the second liquid level meter 305, the medicament adding tank 307, the pipeline G5, the pipeline G6, the pipeline G7, the pipeline G10, the valve F5, the valve F6, the valve F7, the valve F8, the valve F9 and the valve F10, wherein the acid solution storage tank 301 is arranged on the bottom plate 101, and the gold purification residual aqua regia noble liquid and the reduced waste liquid mixture are stored in the acid solution storage tank 301; one end of the liquid inlet pipe 302 extends into the acid solution storage tank 301; the first corrosion-resistant fluorine magnetic pump 303 is placed in the acid solution storage tank 301, and a certain amount of acid solution is pumped into the waste liquid storage tank 304 through the first corrosion-resistant fluorine magnetic pump 303; the second level gauge 305 is fixedly installed in the waste liquid storage tank 304, specifically, the waste liquid storage tank 304 may be made of hard plastic or glass fiber reinforced plastic, and the height of the waste liquid is detected by the second level gauge 305; the fixed plate of the medicament adding groove 307 is fixedly connected with the side surface of the waste liquid storage tank 304, and an alkaline medicament NaOH is placed in the medicament adding groove 307; the upper end of the pipeline G5 extends into the waste liquid storage tank 304, and specifically, the pipeline G5 is connected with an acid removal pipeline of the purification workshop and is used for discharging acid gas in the waste liquid storage tank 304; one end of a pipeline G6 is fixedly connected with the water outlet of the first corrosion-resistant fluorine magnetic pump 303, the other end of the pipeline G6 stretches into the waste liquid storage tank 304, a valve F6 is arranged on the pipeline G6, and specifically, the pipeline G6 is used for pumping aqua regia gold dissolving, aqua regia reduction or nitric acid impurity removal waste acid liquid into the waste liquid storage tank 304; the upper end of the pipeline G7 extends into the waste liquid storage tank 304, a valve F5 is arranged on the pipeline G7, and the pipeline G7 is a clear water pipe; the upper end of the pipeline G10 is connected with a medicine outlet of the medicine adding groove 307, the lower end of the pipeline G10 extends into the waste liquid storage tank 304, a valve F7 is arranged on the pipeline G10, and alkaline medicine NaOH is added into the waste liquid storage tank 304 through the pipeline G10; the valve F8 is arranged at the lower position of the pipe body of the pipeline G9; the valve F9 is arranged at the position of the pipeline G9, which is close to the upper part of the pipeline body; the valve F10 is arranged on the pipeline G8; specifically, when gold in the acid waste liquid is adsorbed, on the premise that the valves F9, F8 and F3 are opened and other valves are closed, a second corrosion-resistant fluorine magnetic pump 306 is opened, gold-containing waste acid liquid is pumped into the activated carbon adsorption tank 401 through a pipeline G9, when the liquid level in the activated carbon adsorption tank 401 reaches the opening of the pipeline G3, the waste liquid adsorbed by the activated carbon is returned into a waste liquid storage tank 304 along with the pipeline G3 to form a closed-circuit circulation system, when the gold grade in the waste liquid is 0.001G/m3, the second corrosion-resistant fluorine magnetic pump 306 is stopped, then the valve F9 on the pipeline G9 is closed, the valve F10 on the pipeline G8 is opened, the waste liquid in the activated carbon adsorption tank 401 is automatically flown into a workshop sedimentation tank 201, after the waste liquid flows out, the valve F8 is closed through a mechanical arm 5, the valve F9 is opened, the waste liquid in the waste liquid 304 is pumped into the sedimentation tank 201 by the second corrosion-resistant magnetic pump 306, naOH is added to neutralize the pH value to 8-9, the waste liquid is settled until the waste liquid is saturated with the noble metal, the activated carbon adsorption tank 401 is settled, and the clear metal adsorption liquid is discharged.
Further, the activated carbon purifying mechanism 4 further includes:
the active carbon adsorption tank comprises a pressure gauge 402, a test gauge 403, an active carbon stirring tank 404, a third stepping motor 405, a second stirring fan blade 406, a bag cutter 407, a water pump 408, a pipeline G1, a pipeline G2, a pipeline G4, a valve F1, a valve F2, a valve F3 and a valve F4, wherein the pressure gauge 402 is arranged on the active carbon adsorption tank 401, specifically, the active carbon adsorption tank 401 is made of carbon steel material, an internal lining rubber is used for preventing an acidic solution from corroding a tank body, specifically, the active carbon adsorption tank 401 can be made of active carbon or adsorption resin, and the particle size of the adsorption material is more than or equal to 20 meshes; the test meter 403 is arranged on the pipeline G3, and the pH value of the solution in the pipeline G3 is tested by the test meter 403; the activated carbon stirring tank 404 is placed on the bottom plate 101, the mixed solution of activated carbon and water is stored in the activated carbon stirring tank 404, specifically, after the bagged activated carbon is taken onto the activated carbon stirring tank 404 through the mechanical arm 5, the bag is cut off by the bag cutting knife 407 to leak the activated carbon into the activated carbon stirring tank 404, the activated carbon in the activated carbon stirring tank 404 is fully mixed with the water by driving the second stirring blade 406 to rotate through the third stepping motor 405, then the mixed solution of the activated carbon is pumped into the activated carbon adsorption tank 401 through the water pump 408, and then the valve F8 and the valve F10 are opened to discharge the water together when the activated carbon is pumped into the sedimentation tank 201 through the pipelines G9 and G8 to be discharged; the third stepping motor 405 is fixedly installed in the activated carbon stirring tank 404, and the motor shaft of the third stepping motor is fixedly connected with the second stirring fan blade 406; the bag cutting knife 407 is fixedly arranged on a side plate of the activated carbon stirring tank 404; the water pump 408 is arranged in the activated carbon stirring tank 404, and the activated carbon mixed solution is pumped into the activated carbon adsorption tank 401 through the water pump 408; the upper end of the pipeline G1 extends into the activated carbon adsorption tank 401, a valve F2 is arranged on the pipeline G1, and specifically, the other end of the pipeline G1 is led to a clean water pump of an analytical electrolysis workshop; one end of a pipeline G2 is connected with a water outlet of the water pump 408, the other end of the pipeline G2 extends into the activated carbon adsorption tank 401, and a valve F1 is arranged on the pipeline G2; the valve F3 is arranged on the pipeline G3; the rear end of the pipeline G4 extends into the activated carbon adsorption tank 401, the valve F4 is arranged on the pipeline G4, and the front end of the pipeline G4 is led to an analysis column of an analysis electrolysis workshop; specifically, when the gold-containing grade of the activated carbon in the activated carbon adsorption tank 401 after adsorption reaches above 4500g/t, the activated carbon can be changed from acid to alkali so as to adapt to the requirements of analytical electrolysis process and ensure the process safety. The valves F9, F8 and F7 are opened by the mechanical arm 5, so that other valves are closed, the valve F5 on the clean water pipeline G7 is opened, clean water is added into the waste liquid storage tank 304, and alkaline agent NaOH is added into the waste liquid storage tank 304 through the agent adding tank 307 to prepare alkaline solution. And then, pumping alkaline solution into the activated carbon adsorption tank 401 through a pipeline G9 by utilizing a second corrosion-resistant fluorine magnetic pump 306, neutralizing the gold-containing activated carbon in the activated carbon adsorption tank 401, and returning the neutralized liquid into the waste liquid storage tank 304 through a pipeline G3 to form closed cycle until the pH value of the liquid discharged from the pipeline G3 reaches above 9, wherein the activated carbon in the activated carbon adsorption tank 401 is changed from the previous acidity to alkalinity, and can enter an analytical electrolysis flow. After neutralization is completed, the valve F8, the valve F9 and the valve F10 are opened through the mechanical arm 5, so that alkaline waste liquid automatically flows into the sedimentation tank 201 from the active carbon adsorption tank, alkaline waste liquid in the waste liquid storage tank 304 is pumped into the sedimentation tank 201 through the second corrosion-resistant fluorine magnetic pump 306, and acid solution discharged before the tank is neutralized, so that the cost of the medicament is saved. After the alkaline solution is completely discharged, the activated carbon after saturated adsorption is returned to the analysis electrolysis operation, the valve F2 is opened, other valves are closed, then water is pumped into the activated carbon adsorption tank 401 through a clean water pump at one end of the pipeline G1, after the pressure value in the activated carbon adsorption tank 401 reaches 0.45MPa, the valve F4 at the bottom of the activated carbon adsorption tank 401 is opened through the mechanical arm 5, and the activated carbon adsorbed with saturated noble metals is pumped into an analysis column of an analysis workshop through the pipeline G4, so that the noble metals are analyzed.
Further, the mechanical arm 5 includes:
the device comprises a first rotary joint 501, a fixed hinged support 502, a steering engine 503, a first telescopic sleeve 504, a first electric cylinder 505, a second rotary joint 506, a second telescopic sleeve 507, a second electric cylinder 508, a camera fixing plate 509, a camera 510 and a mechanical claw 511, wherein the fixed part of the first rotary joint 501 is fixedly arranged on the lower end surface of a sliding block 110, the rotary part of the first rotary joint 501 is fixedly connected with the bottom of the fixed hinged support 502, and the fixed hinged support 502 is driven to rotate by the first rotary joint 501; the steering engine 503 is fixedly arranged on the side surface of the fixed hinged support 502, the steering engine shaft of the steering engine is fixedly connected with the rotating shaft of the fixed hinged support 502, and the steering engine 503 drives the first telescopic sleeve 504 to rotate; the sleeve bottom end of the first telescopic sleeve 504 is fixedly connected with the rotating shaft of the fixed hinged support 502, and the telescopic rod end of the first telescopic sleeve 504 is fixedly connected with the fixed part of the second rotary joint 506; the bottom end of the cylinder body of the first electric cylinder 505 is fixedly arranged on a sleeve side baffle of the first telescopic sleeve 504, the piston rod end of the first electric cylinder 505 is fixedly connected with a telescopic rod side baffle of the first telescopic sleeve 504, and the first telescopic sleeve 504 is driven to stretch through the first electric cylinder 505; the sleeve bottom end of the second telescopic sleeve 507 is fixedly connected with the rotating part of the second rotating joint 506, the telescopic rod end of the second telescopic sleeve 507 is fixedly connected with the mechanical claw 511, and the second telescopic sleeve 507 is driven to rotate through the second rotating joint 506; the bottom end of the cylinder body of the second electric cylinder 508 is fixedly arranged on a sleeve side baffle of the second telescopic sleeve 507, the piston rod end of the second electric cylinder 508 is fixedly connected with a telescopic rod side baffle of the second telescopic sleeve 507, and the second telescopic sleeve 507 is driven to stretch through the second electric cylinder 508; the camera fixing plate 509 is fixedly installed on the side surface of the telescopic rod of the second telescopic sleeve 507; the camera 510 is fixedly arranged on the camera fixing plate 509, image information is collected through the camera 510 and transmitted to the controller 105 in real time, and the controller 105 controls all parts of the mechanical arm 5 to work cooperatively, so that the mechanical arm 5 can take bagged active carbon or timely switch all valves, and the whole equipment can operate orderly.
Further, the method for purifying the process acid waste liquid by the noble metal adsorption device in the gold purification process acid waste liquid is characterized by comprising the following steps of:
(1) Adding activated carbon and outputting the activated carbon: the activated carbon receiving operation is that firstly, valves F1, F8 and F10 are opened to ensure that other valves are closed, then activated carbon which does not contain noble metal and comes from the activated carbon stirring tank enters the activated carbon adsorption tank through a pipeline G2, water which is sent by the activated carbon and is discharged into a sedimentation tank through pipelines G9 and G8, the activated carbon is stopped being beaten after the activated carbon adsorption tank is fully stored, and the activated carbon receiving operation is finished; after the activated carbon adsorption is completed, the activated carbon output operation, namely the activated carbon after the adsorption saturation is returned to the analysis electrolysis operation, the valve F2 is opened, other valves are closed, then a clean water pump of an analysis electrolysis workshop is utilized to pump water into an activated carbon adsorption tank through a pipeline G1, after the pressure value of a pressure gauge reaches 0.45MPa, the valve F4 at the bottom of the activated carbon adsorption tank is opened, and the activated carbon for adsorbing the saturated noble metal is pumped into an analysis column of the analysis workshop through the pipeline G4.
(2) Adsorbing gold-containing waste liquid: the gold purification residual aqua regia precious liquid and the reduced waste liquid mixed liquid in the waste liquid storage tank contains gold with the grade of 2.27G/m & lt 3 & gt, on the premise of ensuring that valves F9, F8 and F3 are opened and other valves are closed, a second corrosion-resistant fluorine magnetic pump is opened, gold-containing waste liquid is pumped into an active carbon adsorption tank through a pipeline G9, when the liquid level in the active carbon adsorption tank reaches the pipe orifice of the pipeline G3, the waste liquid after the active carbon adsorption is returned to the waste liquid storage tank along with the pipeline G3 to form a closed-circuit circulation system, the second corrosion-resistant fluorine magnetic pump is utilized to circulate in this way, when the gold grade in the waste liquid is 0.001G/m & lt 3 & gt, the second corrosion-resistant fluorine magnetic pump is stopped, then the valve F9 on the pipeline G9 is closed, the valve F10 on the pipeline G8 is opened, the waste liquid in the active carbon adsorption tank is automatically flown into a workshop sedimentation tank, after the waste liquid flows out, the valve F8 is closed, the waste liquid in the waste liquid is pumped into the sedimentation tank by the second corrosion-resistant fluorine magnetic pump, naOH is added to neutralize the acid waste liquid to pH8-9, and the clear solution is discharged until the clear solution is settled.
(3) Neutralizing the gold-containing activated carbon: when the gold-containing grade of the activated carbon in the activated carbon adsorption tank reaches above 4500g/t, the activated carbon can be changed from acidity to alkalinity, so as to adapt to the requirements of analytical electrolysis process and ensure the process safety. Before neutralization, determining that the waste liquid storage tank and the waste acid liquid in the activated carbon adsorption tank are completely discharged, opening valves F9, F8 and F7, ensuring that other valves are closed, opening valve F5 on clear water pipeline G7, adding clear water into the waste liquid storage tank, and adding alkaline agent NaOH into the waste liquid storage tank through an agent adding tank to prepare alkaline solution. And then pumping alkaline solution into the activated carbon adsorption tank through a pipeline G9 by using a second corrosion-resistant fluorine magnetic pump, neutralizing the gold-containing activated carbon in the activated carbon adsorption tank, returning the neutralized liquid into a waste liquid storage tank through a pipeline G3 to form closed circulation until the pH value of the liquid discharged by the pipeline G3 reaches more than 9, and enabling the activated carbon in the activated carbon adsorption tank to be changed from the previous acidity to alkalinity and enter an analytical electrolysis process. The neutralized alkaline waste liquid automatically flows into a sedimentation tank from an active carbon adsorption tank, is pumped into the sedimentation tank from a waste liquid storage tank through a second corrosion-resistant fluorine magnetic pump, neutralizes acidic solution in the tank, saves medicament cost, and finally, the active carbon for adsorbing saturated noble metal is beaten into an analysis column of an analysis workshop through a pipeline G4 after the alkaline solution flows completely, so that the noble metal is analyzed.
Claims (7)
1. An adsorption device for noble metals in acid waste liquid of gold purification process, comprising: base (1), precipitation mechanism (2), waste liquid purification mechanism (3), active carbon purification mechanism (4), arm (5), its characterized in that:
the base (1) comprises: a bottom plate (101), a rectangular groove (102), a slideway supporting rod (106), a slideway (108) and a sliding block (110);
the sedimentation mechanism (2) comprises: a sedimentation tank (201);
the waste liquid purifying mechanism (3) comprises: the device comprises a waste liquid storage tank (304), a second corrosion-resistant fluorine magnetic pump (306), a pipeline G8 and a pipeline G9; the activated carbon purifying mechanism (4) comprises: an activated carbon adsorption tank (401) and a pipeline G3;
the bottom plate (101) is provided with a rectangular groove (102), the bottom end of a slide support rod (106) is fixedly arranged on the bottom plate (101), a slide (108) is fixedly arranged at the upper end of the slide support rod (106), and a slide block (110) is slidably arranged on the slide (108); the sedimentation tank (201) is fixedly arranged in the rectangular groove (102); the bottom of the waste liquid storage tank (304) is placed on the bottom plate (101), the second corrosion-resistant fluorine magnetic pump (306) is placed on the bottom plate (101), a water pumping pipe of the second corrosion-resistant fluorine magnetic pump (306) stretches into the waste liquid storage tank (304), the upper end of the pipeline G9 is connected with a water outlet on the second corrosion-resistant fluorine magnetic pump (306), the lower end of the pipeline G9 stretches into the activated carbon adsorption tank (401), the rear end of the pipeline G8 is connected with the pipeline G9, and the front end of the pipeline G8 stretches into the sedimentation tank (201); the active carbon adsorption tank (401) is arranged on the bottom plate (101), one end of the pipeline G3 extends into the active carbon adsorption tank (401), and the other end of the pipeline G3 extends into the waste liquid storage tank (304); the mechanical arm (5) is fixedly arranged on the lower end face of the sliding block (110);
the sedimentation mechanism (2) comprises: the sedimentation tank comprises a drain pipe (202), a drain valve (203), a first liquid level meter (204), a second stepping motor (205), a first stirring fan blade (206), a NaOH storage box (207), a funnel (208), an electric cylinder (209), a baffle (210) and a drain pipe (211), wherein one end of the drain pipe (202) stretches into a sedimentation tank (201); the drainage valve (203) is arranged on the drainage pipe (202); the first liquid level meter (204) is fixedly arranged in the sedimentation tank (201); the second stepping motor (205) is fixedly arranged in the sedimentation tank (201), and a motor shaft of the second stepping motor is fixedly connected with a rotating shaft of the first stirring fan blade (206); the fixing rod of the NaOH storage box (207) is fixedly arranged on the top plate of the sedimentation tank (201); the funnel (208) is fixedly arranged below the NaOH storage box (207); the bottom end of the cylinder body of the electric cylinder (209) is fixedly arranged on the side surface of the hopper (208), and the piston rod end of the electric cylinder is fixedly connected with the baffle (210); the baffle (210) is slidably mounted in a slot in the middle of the funnel (208); the upper end of the drain pipe (211) is connected with the lower end of the funnel (208), and the lower end of the drain pipe (211) stretches into the sedimentation tank (201).
2. The device for adsorbing noble metals in acid waste liquid of gold purification process according to claim 1, wherein the device comprises:
the base (1) also comprises: the device comprises a base support rod (103), a circuit box (104), a controller (105), an active carbon placing groove (107) and a first stepping motor (109), wherein the upper end of the base support rod (103) is fixedly arranged on the lower end surface of a bottom plate (101); the circuit box (104) is arranged on the bottom plate (101); the controller (105) is arranged on the bottom plate (101); the active carbon placing groove (107) is placed at a position on the bottom plate (101) which is close to the rear; the first stepping motor (109) is fixedly arranged at the end part of the slideway (108), and a motor shaft of the first stepping motor is fixedly connected with a rotating shaft in the slideway (108).
3. The device for adsorbing noble metals in acid waste liquid of gold purification process according to claim 1, wherein the device comprises:
the waste liquid purifying mechanism (3) further comprises: the acid solution storage tank (301), a liquid inlet pipe (302), a first corrosion-resistant fluorine magnetic pump (303), a medicament adding groove (307), a pipeline G5, a pipeline G6, a pipeline G7 and a pipeline G10, wherein the acid solution storage tank (301) is arranged on a bottom plate (101); one end of the liquid inlet pipe (302) extends into the acid solution storage tank (301); the first corrosion-resistant fluorine magnetic pump (303) is arranged in the acid solution storage tank (301); the fixed plate of the medicament adding groove (307) is fixedly connected with the side surface of the waste liquid storage groove (304); the upper end of the pipeline G5 extends into the waste liquid storage tank (304); one end of the pipeline G6 is fixedly connected with the water outlet of the first corrosion-resistant fluorine magnetic pump (303), and the other end of the pipeline G6 extends into the waste liquid storage tank (304); the upper end of the pipeline G7 extends into the waste liquid storage tank (304); the upper end of the pipeline G10 is connected with a medicine outlet of the medicine adding groove (307), and the lower end of the pipeline G10 extends into the waste liquid storage groove (304).
4. The device for adsorbing noble metals in acid waste liquid of gold purification process according to claim 1, wherein the device comprises:
the activated carbon purifying mechanism (4) further comprises: the device comprises an active carbon stirring tank (404), a third stepping motor (405), a second stirring fan blade (406), a bag cutter (407), a water pump (408), a pipeline G1, a pipeline G2 and a pipeline G4, wherein the active carbon stirring tank (404) is arranged on a bottom plate (101); the third stepping motor (405) is fixedly arranged in the activated carbon stirring tank (404), and a motor shaft of the third stepping motor is fixedly connected with the second stirring fan blade (406); the bag cutting knife (407) is fixedly arranged on a side plate of the activated carbon stirring tank (404); the water pump (408) is arranged in the activated carbon stirring tank (404); the upper end of the pipeline G1 extends into an active carbon adsorption groove (401); one end of the pipeline G2 is connected with a water outlet of the water pump (408), and the other end of the pipeline G2 extends into the activated carbon adsorption tank (401); one end of the pipeline G4 extends into the activated carbon adsorption tank (401).
5. The device for adsorbing noble metals in acid waste liquid of gold purification process according to claim 1, wherein the device comprises:
the mechanical arm (5) comprises: the device comprises a first rotating joint (501), a fixed hinged support (502), a steering engine (503), a first telescopic sleeve (504), a second rotating joint (506), a second telescopic sleeve (507), a camera fixing plate (509), a camera (510) and a mechanical claw (511), wherein the fixed part of the first rotating joint (501) is fixedly arranged on the lower end surface of a sliding block (110), and the rotating part of the first rotating joint (501) is fixedly connected with the bottom of the fixed hinged support (502); the steering engine (503) is fixedly arranged on the side surface of the fixed hinged support (502), and the steering engine shaft is fixedly connected with the rotating shaft of the fixed hinged support (502); the sleeve bottom end of the first telescopic sleeve (504) is fixedly connected with a rotating shaft of the fixed hinged support (502), and the telescopic rod end of the first telescopic sleeve (504) is fixedly connected with the fixed part of the second rotary joint (506); the sleeve bottom end of the second telescopic sleeve (507) is fixedly connected with the rotating part of the second rotating joint (506), and the telescopic rod end of the second telescopic sleeve (507) is fixedly connected with the mechanical claw (511); the camera fixing plate (509) is fixedly arranged on the side surface of the telescopic rod of the second telescopic sleeve (507); the camera (510) is fixedly mounted on the camera fixing plate (509).
6. The device for adsorbing noble metals in acid waste liquid of gold purification process according to claim 1, wherein the device comprises:
carbon steel materials are adopted outside the activated carbon adsorption tank (401), rubber is lined inside, acidic solution is prevented from corroding the tank body, and specifically, adsorption raw materials in the activated carbon adsorption tank (401) are activated carbon or adsorption resin.
7. A method for adsorbing noble metals in acid waste liquid of gold purification process, which uses the adsorption device for noble metals in acid waste liquid of gold purification process according to any one of claims 1 to 6, and is characterized by comprising the following steps:
(1) Adding activated carbon and outputting the activated carbon: the activated carbon receiving operation is that firstly, valves F1, F8 and F10 are opened to ensure that other valves are closed, then activated carbon which does not contain noble metal and comes from the activated carbon stirring tank enters the activated carbon adsorption tank through a pipeline G2, water which is sent by the activated carbon and is discharged into a sedimentation tank through pipelines G9 and G8, the activated carbon is stopped being beaten after the activated carbon adsorption tank is fully stored, and the activated carbon receiving operation is finished; after the activated carbon adsorption is completed, the activated carbon output operation, namely returning the activated carbon after the adsorption saturation to the analysis electrolysis operation, opening a valve F2 to ensure that other valves are closed, pumping water into an activated carbon adsorption tank by using a clean water pump of an analysis electrolysis workshop through a pipeline G1, opening a valve F4 at the bottom of the activated carbon adsorption tank after the pressure value of a pressure gauge reaches 0.45MPa, and pumping the activated carbon for adsorbing the saturated noble metal into an analysis column of the analysis workshop through the pipeline G4;
(2) Adsorbing gold-containing waste liquid: the gold purification residual aqua regia precious liquid and the reduced waste liquid mixed liquid in the waste liquid storage tank contains gold with the grade of 2.27G/m & lt 3 & gt, on the premise of ensuring that valves F9, F8 and F3 are opened and other valves are closed, a second corrosion-resistant fluorine magnetic pump is opened, gold-containing waste liquid is pumped into an active carbon adsorption tank through a pipeline G9, when the liquid level in the active carbon adsorption tank reaches the pipe orifice of the pipeline G3, the waste liquid after the active carbon adsorption is returned to the waste liquid storage tank along with the pipeline G3 to form a closed-circuit circulation system, the second corrosion-resistant fluorine magnetic pump is utilized to circulate in this way, when the gold grade in the waste liquid is 0.001G/m & lt 3 & gt, the second corrosion-resistant fluorine magnetic pump is stopped, then the valve F9 on the pipeline G9 is closed, the valve F10 on the pipeline G8 is opened, the waste liquid in the active carbon adsorption tank is automatically flown into a workshop sedimentation tank, after the waste liquid flows out, the valve F8 is closed, the waste liquid in the waste liquid is pumped into the sedimentation tank by the second corrosion-resistant fluorine magnetic pump, naOH is added to neutralize the acid waste liquid to pH8-9, and the clear solution is left to stand for clarifying solution;
(3) Neutralizing the gold-containing activated carbon: when the gold-containing grade of the activated carbon in the activated carbon adsorption tank reaches above 4500g/t, the activated carbon is changed from acidity to alkalinity so as to adapt to the requirements of analytical electrolysis process and ensure the process safety; before neutralization, determining that the waste liquid storage tank and the waste acid liquid in the activated carbon storage tank are completely discharged, opening valves F9, F8 and F7, ensuring that other valves are closed, opening a valve F5 on a clean water pipeline G7, adding clean water into the waste liquid storage tank, and adding alkaline agent NaOH into the waste liquid storage tank through an agent adding tank to prepare an alkaline solution; then, alkaline solution is pumped into the active carbon adsorption tank through a pipeline G9 by utilizing a second corrosion-resistant fluorine magnetic pump, gold-containing active carbon in the active carbon adsorption tank is neutralized, the neutralized liquid returns to the waste liquid storage tank through a pipeline G3 to form closed circulation, and the active carbon in the active carbon adsorption tank is changed from the previous acidity into alkalinity until the pH value of the liquid discharged from the pipeline G3 reaches more than 9, and then enters an analytical electrolysis flow; the neutralized alkaline waste liquid automatically flows into a sedimentation tank from an active carbon adsorption tank, is pumped into the sedimentation tank from a waste liquid storage tank through a second corrosion-resistant fluorine magnetic pump, neutralizes acidic solution in the tank, saves medicament cost, and finally, the active carbon for adsorbing saturated noble metal is beaten into an analysis column of an analysis workshop through a pipeline G4 after the alkaline solution flows completely, so that the noble metal is analyzed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911056988.2A CN110629029B (en) | 2019-10-31 | 2019-10-31 | Device and process for adsorbing noble metal in acid waste liquid of gold purification process |
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| CN201911056988.2A CN110629029B (en) | 2019-10-31 | 2019-10-31 | Device and process for adsorbing noble metal in acid waste liquid of gold purification process |
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| CN110629029A CN110629029A (en) | 2019-12-31 |
| CN110629029B true CN110629029B (en) | 2024-04-12 |
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| CN201911056988.2A Active CN110629029B (en) | 2019-10-31 | 2019-10-31 | Device and process for adsorbing noble metal in acid waste liquid of gold purification process |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5260690A (en) * | 1989-03-07 | 1990-10-09 | Dean Robert Butler | Recovery of gold, silver and the platinum group metals with various leachants at low pulp densities |
| CN202193641U (en) * | 2011-08-10 | 2012-04-18 | 郭春美 | Recovery treating equipment capable of realizing recycling of precious metal |
| WO2012057242A1 (en) * | 2010-10-29 | 2012-05-03 | 田中貴金属工業株式会社 | Method for recovering precious-metal ions from plating wastewater |
| CN104975184A (en) * | 2015-07-19 | 2015-10-14 | 长春黄金研究院 | Method for recovering gold and silver from picking waste liquid |
| CN210711682U (en) * | 2019-10-31 | 2020-06-09 | 天津华勘集团有限公司 | Noble metal adsorption equipment in gold purification technology acid waste liquid |
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2019
- 2019-10-31 CN CN201911056988.2A patent/CN110629029B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5260690A (en) * | 1989-03-07 | 1990-10-09 | Dean Robert Butler | Recovery of gold, silver and the platinum group metals with various leachants at low pulp densities |
| WO2012057242A1 (en) * | 2010-10-29 | 2012-05-03 | 田中貴金属工業株式会社 | Method for recovering precious-metal ions from plating wastewater |
| CN202193641U (en) * | 2011-08-10 | 2012-04-18 | 郭春美 | Recovery treating equipment capable of realizing recycling of precious metal |
| CN104975184A (en) * | 2015-07-19 | 2015-10-14 | 长春黄金研究院 | Method for recovering gold and silver from picking waste liquid |
| CN210711682U (en) * | 2019-10-31 | 2020-06-09 | 天津华勘集团有限公司 | Noble metal adsorption equipment in gold purification technology acid waste liquid |
Non-Patent Citations (1)
| Title |
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| 黄金冶炼废水处理及有价金属回收;孙建伟等;黄金科学技术;20150430(第02期);第94-97页 * |
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