CN114934185A - Process and device for recovering gold, silver and platinum noble metals from antimony smelting waste residues - Google Patents
Process and device for recovering gold, silver and platinum noble metals from antimony smelting waste residues Download PDFInfo
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- CN114934185A CN114934185A CN202210480276.9A CN202210480276A CN114934185A CN 114934185 A CN114934185 A CN 114934185A CN 202210480276 A CN202210480276 A CN 202210480276A CN 114934185 A CN114934185 A CN 114934185A
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- main shaft
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- decanting
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- 229910052787 antimony Inorganic materials 0.000 title claims abstract description 51
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 title claims abstract description 51
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000002699 waste material Substances 0.000 title claims abstract description 44
- 238000003723 Smelting Methods 0.000 title claims abstract description 41
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 33
- 239000010931 gold Substances 0.000 title claims abstract description 33
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 28
- 239000004332 silver Substances 0.000 title claims abstract description 28
- 229910052697 platinum Inorganic materials 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000510 noble metal Inorganic materials 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 58
- 238000001035 drying Methods 0.000 claims abstract description 53
- 238000010908 decantation Methods 0.000 claims abstract description 52
- 238000009434 installation Methods 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 21
- 230000000903 blocking effect Effects 0.000 claims description 18
- 238000000605 extraction Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 239000011593 sulfur Substances 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000010970 precious metal Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000009298 carbon filtering Methods 0.000 claims 2
- 238000000746 purification Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 13
- 238000005457 optimization Methods 0.000 abstract description 2
- 241001233242 Lontra Species 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010981 drying operation Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 description 1
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- PQTCMBYFWMFIGM-UHFFFAOYSA-N gold silver Chemical compound [Ag].[Au] PQTCMBYFWMFIGM-UHFFFAOYSA-N 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052959 stibnite Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- IHBMMJGTJFPEQY-UHFFFAOYSA-N sulfanylidene(sulfanylidenestibanylsulfanyl)stibane Chemical compound S=[Sb]S[Sb]=S IHBMMJGTJFPEQY-UHFFFAOYSA-N 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
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- 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
- C22B7/04—Working-up slag
-
- 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
- C22B11/02—Obtaining noble metals by dry processes
- C22B11/021—Recovery of noble metals from waste materials
- C22B11/023—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
-
- 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
- C22B11/044—Recovery of noble metals from waste materials from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
-
- 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
- C22B7/001—Dry processes
-
- 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
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- 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)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a process and a device for recovering gold, silver and platinum noble metals from antimony smelting waste residues, belonging to the technical field of antimony smelting. The device comprises a decanting drying device, the decanting drying device comprises an installation cylinder, a decanting part is arranged in the installation cylinder, the back of the decanting part is connected with a drying part, and liquid outlets are formed in the side walls of the bottom of the installation cylinder; be provided with stoving support otter board in the cadre, all be provided with air outlet channel in cadre and the second grade decantation room, air outlet channel links to each other with filtering component and heater links to each other, and the heater passes through backheat pipe and stoving portion intercommunication. The optimization of the process is realized through the improved device, and the problems that the materials need to be repeatedly transferred and fed, and the materials are exposed in the environment and harmful gas is released in the drying process are solved.
Description
Technical Field
The invention relates to the technical field of antimony smelting, in particular to a process and a device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues.
Background
Antimony is a grey metal with silvery luster, gradually loses luster in humid air, and burns into white antimony oxide under strong heat. Is easily dissolved in aqua regia and concentrated sulfuric acid. Antimony is found in nature primarily in the sulfide mineral stibnite (Sb2S 3). With the continuous development and application of antimony ore resources, a large amount of antimony smelting waste residues are discharged.
How to comprehensively utilize the antimony smelting waste residue, recycle the noble metals in the antimony smelting waste residue, increase the economic benefit of enterprises and reduce the environmental pollution is a subject with great economic benefit, environmental protection and social benefit.
Although the content of gold and silver precious metals in the antimony smelting waste residue is high, the occurrence states of the precious metals are relatively dispersed, and the mineral phases are inclusion and intergrowth particle embedded gold, so that the antimony smelting waste residue belongs to an antimony-containing waste residue material which is relatively difficult to treat, and because the content of components such as carbon, sulfur, antimony and the like is also high, the antimony smelting waste residue has a lot of adverse effects on gold and silver extraction by a cyanidation method, and the gold and silver extraction needs to be eliminated in advance. In order to solve the problem, for example, Chinese patent with the patent application number of CN200510017587.8 discloses a process for recovering gold, silver and platinum noble metals from antimony smelting waste residues, which comprises the following steps: 1. removing impurities such as carbon, sulfur and the like in the antimony smelting waste residue by adopting a high-temperature roasting method; 2. leaching impurities such as antimony and the like in the antimony smelting waste residue by adopting an acid leaching method; 3. gold, silver and platinum in the antimony smelting waste residue are extracted by adopting a cyanidation gold extraction process. The invention eliminates the influence of other components which are not beneficial to the gold (silver) extraction process by cyanidation in the antimony smelting waste residue by adopting a pretreatment method, and improves the cyanidation process condition, thereby effectively extracting gold, silver, platinum and noble metal in the antimony smelting waste residue. And can also convert the antimony in the antimony smelting waste residue into a useful refined antimony white product.
In the prior art, the steps of the recovery process are very complex, and key steps such as decantation, filtration, drying and the like are often required to be repeated, so that the materials are required to be repeatedly transferred and put in, and the operation is very complicated; in addition, in the material transferring and drying process, harmful gas can be released from waste residues, so that certain pollution is caused to the air environment, and the time for exposing and staying the materials in the environment is required to be reduced as much as possible.
Disclosure of Invention
The invention aims to solve the problems, and provides a process and a device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues, which realize process optimization through an improved device and solve the problems that the process needs to be repeatedly transferred and fed in the previous production, the operation is complicated, harmful gas is released when the materials are exposed in the environment and in the drying process, and the materials need to be purified in time, and the like.
In order to realize the purpose, the invention adopts the technical scheme that: a process for recovering gold, silver and platinum noble metals from antimony smelting waste residues mainly comprises the steps of grinding the antimony smelting waste residues with carbon and sulfur impurities removed through roasting through a ball mill, soaking and dissolving the ground waste residues through hydrochloric acid to remove antimony for recovery, and extracting gold, silver and platinum from the antimony smelting waste residues through a cyanidation method gold extraction process.
In addition, the invention also discloses a device for recovering gold, silver, platinum and precious metals from antimony smelting waste residues, which comprises a decantation drying device, wherein the decantation drying device comprises an installation cylinder, a decantation part is arranged in the installation cylinder, a feed inlet is formed in the front ends of the installation cylinder and the decantation part, the back of the decantation part is connected with a drying part, the decantation part comprises a primary decantation chamber and a secondary decantation chamber which are connected in front and back, liquid outlets are formed in the side walls of the bottoms of the installation cylinders at the primary decantation chamber and the secondary decantation chamber, a first main shaft capable of sliding is arranged in the primary decantation chamber, the first main shaft is driven by a motor, a material blocking component is arranged at the tail part of the first main shaft, a second main shaft capable of being connected with the first main shaft is arranged in the secondary decantation chamber, and spiral conveying blades are arranged on the first main shaft and the second main shaft; the drying part is internally provided with a drying support screen plate and is communicated with an air heater, the drying part and the secondary decantation chamber are internally provided with air outlet channels, the air outlet channels are connected with a filter assembly, the filter assembly is connected with a heater, and the heater is communicated with the drying part through a heat return pipe.
Further, the cartridge filter lateral wall of one-level decantation room and second grade decantation room is network structure, and the cartridge filter diameter of second grade decantation room is greater than the cartridge filter of one-level decantation room, and both meet the department and be provided with the connection swash plate, and the connection swash plate is supported by the support dog of installation section of thick bamboo inner wall.
Furthermore, a connecting sleeve is sleeved at the front end of the first main shaft and connected with a bearing at the front end of the first-stage decantation chamber through the connecting sleeve, an adjusting bearing is arranged at one end of the first main shaft, which is positioned outside the first-stage decantation chamber, the first main shaft is connected with an output shaft of a motor, the upper side and the lower side of a motor bracket of the motor and the upper side and the lower side of the adjusting bearing are limited through sliding grooves in the supporting plate and are limited and fixed through a limiting bolt matched with a screw hole of the supporting plate; the backup pad of upper and lower both sides is connected through connecting the riser, it all supports through the support column to connect riser and an installation section of thick bamboo.
Further, the material blocking assembly comprises a first material blocking plate arranged at the tail of the first main shaft, a mounting groove is formed in the outer side of the first material blocking plate, and movable plates of arc-shaped plate structures are arranged in the mounting groove in an annular array mode.
Further, the movable plate is connected with the bottom surface of the mounting groove through a spring, and a first discharge hole is formed in the movable plate.
Furthermore, clamping blocks are arranged at the tail end of the first main shaft in an annular array mode, a limiting groove is formed in the front end of the second main shaft, and clamping grooves are formed in the side wall of the limiting groove in an annular array mode; the front part of the second main shaft is connected with a bearing of a main shaft mounting plate, the bottom end of the main shaft mounting plate is connected with the top wall of the secondary decanting room, and the tail end of the second main shaft is connected with a bearing on a second baffle plate at the front end of the drying part.
Further, the second main shaft penetrates through the second material retaining plate, and the tail end of the second main shaft is connected with a material turning assembly through a bevel gear pair; the material turning assembly comprises a mounting plate, a material turning part is arranged at the bottom of the mounting plate and is of a plow harrow structure, a rotating shaft is arranged at the top of the mounting plate and penetrates through a rotating shaft mounting plate horizontally arranged, one end of the rotating shaft mounting plate is connected with a second material baffle plate, a driven bevel gear is arranged at the top of the rotating shaft, and a driving bevel gear is arranged at the tail end of the second spindle.
Furthermore, be provided with the air exhauster on the pipeline of giving vent to anger at second grade decantation chamber top, filter the subassembly and include first installing frame, first installing frame top is through circulating line and pipeline intercommunication of giving vent to anger, has arranged the filtration sack in the first installing frame, and first installing frame below is connected with the second installing frame, and second installing frame bottom and backheat pipe intercommunication are provided with the activated carbon layer in the second installing frame.
Furthermore, the circulating pipeline is connected with the first mounting frame through a corrugated pipe and a sealing bearing, and the heat return pipe is connected with the second mounting frame through a corrugated pipe and a sealing bearing; the top of the second mounting frame is in threaded connection with an opening at the bottom end of the first mounting frame through a connecting cylinder, and a filter screen plate is arranged at the top end of the connecting cylinder; the activated carbon layer is installed through the installation drawer.
The invention has the beneficial effects that:
1. the decantation part and the drying part are arranged in a centralized manner, and the installation barrel is used for centralized protective installation, so that the decanted materials can enter the drying part for drying operation, and repeated decantation operation is not required to be carried out by repeatedly taking and feeding materials.
Wherein decantation portion is the two-stage type decantation mode, and one-level decantation room and second grade decantation room are the continuous cartridge filter around, and the diameter of second grade decantation room is greater than the diameter of one-level decantation room, and the first main shaft in the one-level decantation room can be connected with the second main shaft after pushing, realizes the synchronous work of two-stage decantation room. The tail part of the first main shaft is provided with the material blocking assembly, so that materials can be blocked to prolong the stirring and filtering time in the first decanting chamber; when the motor, the adjusting bearing and the first main shaft are pushed to push the material blocking assembly into the second decanting chamber, the movable plate of the material blocking assembly is ejected by the spring, the first discharge port on the movable plate is exposed, and the material flows into the second decanting chamber under the pushing of the spiral conveying blade; at the moment, the first main shaft is connected with the second main shaft, synchronous work of the two-stage decanting chambers can be realized after the motor is restarted, and the multistage decanting process is realized under the condition that repeated material transferring and feeding operations are greatly reduced.
2. The invention directly pushes the decanted materials to the drying part for drying operation, reduces the transferring steps, avoids the frequent exposure of the product to the environment and excessive volatilization of harmful gases, and can intensively purify the gases in the decanting part and the drying part because the decanting part and the drying part are intensively installed, and further heats the purified air with residual heat to realize the recycling of hot air.
Wherein decantation portion all links to each other with the circulating line through the pipeline of giving vent to anger with the cadre, last filtering component and the heater of having set gradually of circulating line, filtering component includes first installing frame and second installing frame, both realize threaded connection through the connecting cylinder, therefore the filter screen board at the connecting cylinder top of second installing frame can screw in gradually in the first installing frame, thereby compress the filtration sack in the first installing frame, filter materials such as sponge or silica gel granule can pack into in the filtration sack, when filtering the sack and being compressed, its clearance dwindles, make filtration's speed slow down, prolong filterable time, strengthen filterable effect, adapt to different operating mode demands, filter the sack simultaneously and all conveniently take out the change through the activated carbon layer of drawer type installation.
3. In order to improve the drying speed and ensure the drying uniformity of the materials, a material turning component is arranged above the drying support screen plate and comprises a material turning component, the material turning component is of a plow harrow structure and is installed through an installation plate, the installation plate is driven by a rotating shaft to rotate, a driven bevel gear at the top of the rotating shaft can be matched with a driving bevel gear at the tail end of a second main shaft, so that the linkage effect of the second main shaft and the material turning component is realized, when the second main shaft is started, the materials sequentially enter a secondary decantation chamber and are continuously pushed to enter a drying chamber from a second discharge port, so that the materials can be turned while being dried, and the drying efficiency and the drying uniformity of the materials are effectively improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the installation of the motor of the present invention.
Figure 3 is a schematic diagram of the decant portion structure of the invention.
Fig. 4 is a schematic structural view of the striker assembly of the invention.
Fig. 5 is a schematic structural diagram of the upender assembly of the present invention.
Fig. 6 is a schematic end structure diagram of the first spindle and the second spindle according to the present invention.
Fig. 7 is a schematic view of the internal structure of the filter assembly of the present invention.
The text labels in the figures are represented as: 100. decanting and drying device; 200. a decant portion; 300. a drying section; 1. a support pillar; 2. a limit bolt; 3. a support plate; 4. a sliding groove; 5. a motor bracket; 6. connecting a vertical plate; 7. a motor; 8. adjusting the bearing; 9. mounting the cylinder; 10. a filter cartridge; 11. a primary decant chamber; 12. a secondary decant chamber; 13. a first main shaft; 14. a second main shaft; 15. a liquid outlet; 16. A screw conveying blade; 17. the material blocking component; 18. a support block; 19. a main shaft mounting plate; 20. a hot air blower; 21. a hot air pipe; 22. drying the supporting screen plate; 23. a heat recovery pipe; 24. turning over the material; 25. a heater; 26. a bevel gear pair; 27. a filter assembly; 28. a circulation pipe; 29. a sealing door; 30. an air outlet pipe; 31. an exhaust fan; 32. connecting sleeves; 33. a clamping block; 34. a card slot; 35. a limiting groove; 36. a first striker plate; 37. installing a groove; 38. a spring; 39. a first discharge port; 40. a movable plate; 41. a second discharge port; 42. a second retainer plate; 43. a drive bevel gear; 44. a driven bevel gear; 45. a rotating shaft mounting plate; 46. a rotating shaft; 47. mounting a plate; 48. a bellows; 49. installing a drawer; 50. a first mounting frame; 51. a second mounting frame; 52. a filter cloth bag; 53. a filter screen plate; 54. a connecting cylinder; 55. and an activated carbon layer.
Detailed Description
The invention is further illustrated by the following examples.
A process for recovering gold, silver and platinum noble metals from antimony smelting waste residues mainly comprises the steps of grinding the antimony smelting waste residues with carbon and sulfur impurities removed through roasting through a ball mill, soaking and dissolving the ground waste residues through hydrochloric acid to remove antimony for recovery, and extracting gold, silver and platinum from the antimony smelting waste residues through a cyanidation method gold extraction process.
In addition, the invention also discloses a device for recovering gold, silver, platinum and noble metals from the antimony smelting waste residue, which comprises a decanting and drying device 100, the decanting and drying device 100 comprises a mounting tube 9, a decanting part 200 is arranged in the mounting tube 9, a feed inlet is arranged at the front ends of the mounting tube 9 and the decanting part 200, a drying part 300 is connected behind the decanting part 200, the decant portion 200 includes a primary decant chamber 11 and a secondary decant chamber 12 connected in tandem, the outlet 15 is provided on the sidewall of the bottom of the mounting tube 9 at the primary decant chamber 11 and the secondary decant chamber 12, a first sliding main shaft 13 is arranged in the first-stage decant chamber 11, the first main shaft 13 is driven by a motor 7, a material blocking component 17 is arranged at the tail part of the first main shaft 13, a second main shaft 14 which can be connected with the first main shaft 13 is arranged in the secondary decant chamber 12, and spiral conveying blades 16 are arranged on the first main shaft 13 and the second main shaft 14; the drying part 300 is internally provided with a drying support screen 22, the drying part 300 is communicated with the hot air blower 20, the drying part 300 and the secondary decant chamber 12 are internally provided with air outlet channels 30, the air outlet channels 30 are connected with a filter assembly 27, the rear part of the filter assembly 27 is connected with a heater 25, and the heater 25 is communicated with the drying part 300 through a heat return pipe 23.
Preferably, as shown in fig. 1, 2 and 3, the side walls of the filter cartridges 10 of the first-stage decantation chamber 11 and the second-stage decantation chamber 12 are both net-shaped structures, the diameter of the filter cartridge 10 of the second-stage decantation chamber 12 is larger than that of the filter cartridge 10 of the first-stage decantation chamber 11, and a connection inclined plate is disposed at the joint of the two, and the connection inclined plate is supported by the support stopper 18 on the inner wall of the installation cylinder 9.
Preferably, as shown in fig. 1, 2 and 3, a connecting sleeve 32 is sleeved at the front end of the first spindle 13 and connected with a bearing at the front end of the first-stage decantation chamber 11 through the connecting sleeve 32, an adjusting bearing 8 is arranged at one end of the first spindle 13, which is located at the outer side of the first-stage decantation chamber 11, the first spindle 13 is connected with an output shaft of a motor 7, the upper and lower sides of a motor bracket 5 of the motor 7 and the adjusting bearing 8 are both limited through a sliding groove 4 on the supporting plate 3 and are both limited and fixed through a limiting bolt 2 in cooperation with a screw hole of the supporting plate 3; backup pad 3 of upper and lower both sides is connected through connecting riser 6, connecting riser 6 all supports through support column 1 with installation section of thick bamboo 9.
The adjustment mode of the first main shaft 13 is as follows: first main shaft 13 is connected with motor 7, because motor 7 and adjusting bearing 8 all carry on spacingly through sliding tray 4 in the backup pad 3 to accessible limit bolt 2 is fixed, when the position of first main shaft 13 needs to be adjusted, loosens motor 7 and adjusting bearing 8's spacingly through unscrewing limit bolt 2, can pass first main shaft 13 and motor 7 are whole.
Preferably, as shown in fig. 1 and 4, the material blocking assembly 17 includes a first material blocking plate 36 disposed at the tail of the first main shaft 13, a mounting groove 37 is formed on the outer side of the first material blocking plate 36, and movable plates 40 having an arc-shaped plate structure are disposed in the mounting groove 37 in an annular array. The movable plate 40 is connected with the bottom surface of the mounting groove 37 through a spring 38, and a first discharge hole 39 is formed on the movable plate 40.
Preferably, as shown in fig. 1, 4, and 6, the fixture blocks 33 are arranged at the tail end of the first main shaft 13 in an annular array, the front end of the second main shaft 14 is provided with a limiting groove 35, and the side wall of the limiting groove 35 is provided with the clamping grooves 34 in an annular array; the front part of the second main shaft 14 is connected with the bearing of the main shaft mounting plate 19, the bottom end of the main shaft mounting plate 19 is connected with the top wall of the secondary decant chamber 12, and the tail end of the second main shaft 14 is connected with the bearing of the second retainer plate 42 at the front end of the drying part 300.
Preferably, as shown in fig. 1 and 5, the second spindle 14 penetrates through the second material blocking plate 42, and the tail end of the second spindle is connected to a material turning assembly through a bevel gear pair 26; the material turning assembly comprises a mounting plate 47, the bottom of the mounting plate 47 is provided with a material turning part 24, the material turning part 24 is of a plow harrow structure, the top of the mounting plate 47 is provided with a rotating shaft 46, the rotating shaft 46 penetrates through a rotating shaft mounting plate 45 horizontally arranged, one end of the rotating shaft mounting plate 45 is connected with a second material blocking plate 42, the top of the rotating shaft 46 is provided with a driven bevel gear 44, and the tail end of the second spindle 14 is provided with a driving bevel gear 43.
Preferably, as shown in fig. 1, 5 and 7, an exhaust fan 31 is disposed on the air outlet pipe 30 at the top of the secondary decant chamber 12, the filter assembly 27 includes a first mounting frame 50, the top end of the first mounting frame 50 is communicated with the air outlet pipe 30 through a circulation pipe 28, a filter cloth bag 52 is disposed in the first mounting frame 50, a second mounting frame 51 is connected below the first mounting frame 50, the bottom of the second mounting frame 52 is communicated with the heat recovery pipe 23, and an activated carbon layer 55 is disposed in the second mounting frame 52. The circulation pipeline 28 is connected with the first mounting frame 50 through a corrugated pipe 48 and a sealing bearing, and the heat return pipe 23 is connected with the second mounting frame 51 through a corrugated pipe 48 and a sealing bearing; the top of the second mounting frame 51 is in threaded connection with an opening at the bottom end of the first mounting frame 50 through a connecting cylinder 54, and a filter screen plate 53 is arranged at the top end of the connecting cylinder 54; the activated carbon layer 55 is mounted by means of a mounting drawer 49.
The filter assembly comprises a first mounting frame 50 and a second mounting frame 51, wherein the first mounting frame 50 and the second mounting frame 51 are in threaded connection through a connecting cylinder, the first mounting frame 50 is connected with the circulating pipeline 28 through a corrugated pipe 48 and a bearing, the second mounting frame 51 is connected with the heat return pipe 23 through the corrugated pipe 48 and the bearing, and rotatable mounting of the first mounting frame 50 and the second mounting frame 51 is achieved. When the filter cloth bag 52 is compressed, the gap is reduced, so that the air filtering speed is reduced, the filtering time is prolonged, the filtering effect is enhanced, and different working condition requirements can be met.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present invention are explained herein, and the above description of the embodiments is only used to help understand the method and its core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A process for recovering gold, silver and platinum noble metals from antimony smelting waste residues mainly comprises the steps of grinding the antimony smelting waste residues with carbon and sulfur impurities removed through roasting through a ball mill, soaking and dissolving the ground waste residues through hydrochloric acid to remove antimony for recovery, and extracting gold, silver and platinum from the antimony smelting waste residues through a cyanidation method gold extraction process, and is characterized in that the antimony smelting waste residues are subjected to secondary decantation through a decantation part (200) of a decantation drying device (100) before roasting, the decanted materials are discharged into a drying part (300) for drying, hot air is adopted for drying, the temperature of the dried hot air is 65-75 ℃, the drying time is 0.5-0.7 hour, the dried hot steam is purified through an active carbon filtering component, and gas in the decantation part (200) is also pumped to the active carbon filtering component for purification treatment.
2. The device for recovering gold, silver, platinum and precious metals from antimony smelting waste residues comprises a decanting and drying device (100), and is characterized in that the decanting and drying device (100) comprises a mounting cylinder (9), a decanting part (200) is arranged in the mounting cylinder (9), feed inlets are arranged at the front ends of the mounting cylinder (9) and the decanting part (200), a drying part (300) is connected behind the decanting part (200), the decanting part (200) comprises a primary decanting chamber (11) and a secondary decanting chamber (12) which are connected in front and back, liquid outlets (15) are arranged on the bottom side walls of the mounting cylinder (9) at the positions of the primary decanting chamber (11) and the secondary decanting chamber (12), a slidable first spindle (13) is arranged in the primary decanting chamber (11), the first spindle (13) is driven by a motor (7), and a material blocking component (17) is arranged at the tail part of the first spindle (13), a second main shaft (14) which can be connected with the first main shaft (13) is arranged in the secondary decant chamber (12), and spiral conveying blades (16) are arranged on the first main shaft (13) and the second main shaft (14); the drying device is characterized in that a drying support screen plate (22) is arranged in the drying part (300), the drying part (300) is communicated with the hot air blower (20), air outlet channels (30) are arranged in the drying part (300) and the secondary decantation chamber (12), the air outlet channels (30) are connected with a filter assembly (27), the filter assembly (27) is connected with a heater (25) in back, and the heater (25) is communicated with the drying part (300) through a heat return pipe (23).
3. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues as claimed in claim 2, wherein the side walls of the filter cartridges (10) of the primary decantation chamber (11) and the secondary decantation chamber (12) are both of a mesh structure, the diameter of the filter cartridge (10) of the secondary decantation chamber (12) is larger than that of the filter cartridge (10) of the primary decantation chamber (11), and a connecting inclined plate is arranged at the joint of the two, and is supported by a supporting stopper (18) on the inner wall of the mounting cylinder (9).
4. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues as claimed in claim 2, wherein a connecting sleeve (32) is sleeved at the front end of the first main shaft (13) and connected with a bearing at the front end of the primary decantation chamber (11) through the connecting sleeve (32), an adjusting bearing (8) is arranged at one end of the first main shaft (13) located at the outer side of the primary decantation chamber (11), the first main shaft (13) is connected with an output shaft of a motor (7), the upper side and the lower side of a motor bracket (5) of the motor (7) and the upper side and the lower side of the adjusting bearing (8) are both limited through a sliding groove (4) in the supporting plate (3) and are both limited and fixed through a limiting bolt (2) in cooperation with a screw hole in the supporting plate (3); backup pad (3) of upper and lower both sides are connected through connecting riser (6), it all supports through support column (1) to connect riser (6) and installation section of thick bamboo (9).
5. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues as claimed in claim 2, wherein the material blocking assembly (17) comprises a first material blocking plate (36) arranged at the tail of the first main shaft (13), a mounting groove (37) is formed in the outer side of the first material blocking plate (36), and movable plates (40) of arc-shaped plate structures are arranged in the mounting groove (37) in an annular array.
6. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues as claimed in claim 5, wherein the movable plate (40) is connected with the bottom surface of the mounting groove (37) through a spring (38), and the movable plate (40) is provided with a first discharge hole (39).
7. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues as claimed in claim 2, wherein clamping blocks (33) are arranged in an annular array at the tail end of the first main shaft (13), a limiting groove (35) is formed in the front end of the second main shaft (14), and clamping grooves (34) are formed in an annular array on the side wall of the limiting groove (35); the front part of the second main shaft (14) is connected with a bearing of a main shaft mounting plate (19), the bottom end of the main shaft mounting plate (19) is connected with the top wall of the secondary decantation chamber (12), and the tail end of the second main shaft (14) is connected with a bearing on a second material baffle plate (42) at the front end of the drying part (300).
8. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residue as claimed in claim 7, wherein the second main shaft (14) penetrates through the second baffle plate (42) and the tail end of the second main shaft is connected with a material turning assembly through a bevel gear pair (26); the material overturning assembly comprises a mounting plate (47), a material overturning part (24) is arranged at the bottom of the mounting plate (47), the material overturning part (24) is of a plow harrow structure, a rotating shaft (46) is arranged at the top of the mounting plate (47), the rotating shaft (46) penetrates through a rotating shaft mounting plate (45) horizontally arranged, one end of the rotating shaft mounting plate (45) is connected with a second material retaining plate (42), a driven bevel gear (44) is arranged at the top of the rotating shaft (46), and a driving bevel gear (43) is arranged at the tail end of a second spindle (14).
9. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues as claimed in claim 2, wherein an exhaust fan (31) is arranged on the gas outlet pipeline (30) at the top of the secondary decant chamber (12), the filter assembly (27) comprises a first mounting frame (50), the top end of the first mounting frame (50) is communicated with the gas outlet pipeline (30) through a circulating pipeline (28), a filter cloth bag (52) is arranged in the first mounting frame (50), a second mounting frame (51) is connected below the first mounting frame (50), the bottom of the second mounting frame (52) is communicated with the heat return pipe (23), and an activated carbon layer (55) is arranged in the second mounting frame (52).
10. The device for recovering gold, silver, platinum and noble metals from antimony smelting waste residues as claimed in claim 9, wherein the circulation pipeline (28) is connected with the first mounting frame (50) through a corrugated pipe (48) and a sealing bearing, and the heat return pipe (23) is connected with the second mounting frame (51) through a corrugated pipe (48) and a sealing bearing; the top of the second mounting frame (51) is in threaded connection with an opening at the bottom end of the first mounting frame (50) through a connecting cylinder (54), and a filter screen plate (53) is arranged at the top end of the connecting cylinder (54); the activated carbon layer (55) is mounted by means of a mounting drawer (49).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210480276.9A CN114934185A (en) | 2022-05-05 | 2022-05-05 | Process and device for recovering gold, silver and platinum noble metals from antimony smelting waste residues |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210480276.9A CN114934185A (en) | 2022-05-05 | 2022-05-05 | Process and device for recovering gold, silver and platinum noble metals from antimony smelting waste residues |
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