CN114797318A - Method and device for separating antimony and gold in pyrometallurgy of antimony - Google Patents
Method and device for separating antimony and gold in pyrometallurgy of antimony Download PDFInfo
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- CN114797318A CN114797318A CN202210481618.9A CN202210481618A CN114797318A CN 114797318 A CN114797318 A CN 114797318A CN 202210481618 A CN202210481618 A CN 202210481618A CN 114797318 A CN114797318 A CN 114797318A
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- antimony
- box body
- filtering
- tail gas
- smelting
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- 229910052787 antimony Inorganic materials 0.000 title claims abstract description 62
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 23
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 19
- 239000010931 gold Substances 0.000 title claims abstract description 19
- 238000009853 pyrometallurgy Methods 0.000 title claims description 10
- 238000001914 filtration Methods 0.000 claims abstract description 77
- 238000003723 Smelting Methods 0.000 claims abstract description 56
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims abstract description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 6
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 239000011133 lead Substances 0.000 claims abstract description 5
- 239000011593 sulfur Substances 0.000 claims abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000001698 pyrogenic effect Effects 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 4
- 238000005054 agglomeration Methods 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 claims description 3
- 238000009298 carbon filtering Methods 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000746 purification Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 33
- 239000000428 dust Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 229910000410 antimony oxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/88—Replacing filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a method and a device for separating antimony and gold in pyrometallurgical antimony smelting, which belong to the technical field of antimony smelting, and comprise a blast smelting furnace, wherein a first-stage tail gas treatment component and a second-stage tail gas treatment component are connected behind an air outlet pipe of the blast smelting furnace, the first-stage tail gas treatment component comprises a first filtering box body, a chemical feeder, an air inlet pipe and an air outlet pipeline are arranged on a top cover of the first filtering box body, and a liftable stirring plate component is arranged in the first filtering box body; the secondary tail gas treatment component comprises a second filtering box body, a circuitous filtering channel is formed in the second filtering box body through a plurality of layers of partition plates, a filtering net component is arranged in each layer of filtering channel, the bottom of the second filtering box body is a liquid storage part, and alkaline treatment liquid and a water pump are arranged in the liquid storage part; the bottom of the second filter tank is provided with an exhaust pipe, and the exhaust pipe is provided with an active carbon filter assembly. The invention carries out step-by-step treatment on the impurities of arsenic, lead, iron, sulfur and the like in the tail gas through the multi-stage tail gas treatment component, thereby achieving more thorough purification effect.
Description
Technical Field
The invention relates to the technical field of antimony smelting, in particular to a method and a device for separating antimony and gold in antimony smelting by a pyrogenic process.
Background
The production method of antimony mainly comprises a wet method and a fire method. The wet antimony smelting method comprises alkaline wet antimony smelting and acid wet antimony smelting, and has the advantages of high metal recovery rate, good comprehensive utilization and less pollution. The preparation process of pyrometallurgy antimony mainly includes volatilizing roasting-reduction smelting and volatilizing smelting-reduction smelting, and the antimony oxide produced by these two methods is reduced and smelted by reverberatory furnace to produce crude antimony. The fire smelting of antimony generally requires the use of blast furnace equipment in which antimony enters a cloth bag in the form of antimony oxide and gold enters a front bed and is enriched with crude antimony to obtain precious antimony.
The smoke dust generated in the antimony pyrometallurgy process usually contains harmful impurities such as arsenic, lead, iron, sulfur and the like, which affect the product quality, pollute the environment and harm the human health.
Chinese patent with patent application number CN202120886288.2 discloses a pyrometallurgical antimony smelting blast furnace blowing equipment, including pyrometallurgical antimony smelting furnace body, the top of pyrometallurgical antimony smelting furnace body is provided with the top cap, and the bottom fixedly connected with on body right side pulls the ring, and the left top fixedly connected with tapping hole of body, the top of body are provided with the blast furnace body, and the top fixedly connected with air intake of blast furnace body, the right side fixedly connected with air-out pipe at top cap top, the bottom of air-out pipe is provided with the dust collection box. The device can realize filtering the flue gas that produces when smelting through the cooperation of the play tuber pipe that sets up and dust collection box, lead dirt ring, first filter screen, connecting pipe, joint ring to collect the processing to the dust after filtering.
However, blast furnace equipment in the prior art is difficult to respectively and completely purify various harmful impurities in smoke dust, and with the improvement of environmental protection standards, a general tail gas treatment device is difficult to meet the production and processing requirements of high standards.
Disclosure of Invention
The invention aims to solve the problems and provides a method and a device for separating antimony and gold in antimony pyrometallurgy.
In order to realize the purpose, the invention adopts the technical scheme that: a device for separating antimony and gold in pyrometallurgical antimony smelting comprises a blast smelting furnace, wherein a first-stage tail gas treatment assembly and a second-stage tail gas treatment assembly are connected behind an air outlet pipe of the blast smelting furnace, and is characterized in that the first-stage tail gas treatment assembly comprises a first filtering box body, a chemical feeder, an air inlet pipe and an air outlet pipeline are arranged on a top cover of the first filtering box body, a liftable stirring plate assembly is arranged in the first filtering box body, the air outlet pipeline of the first filtering box body is connected with the second-stage tail gas treatment assembly, the second-stage tail gas treatment assembly comprises a second filtering box body, circuitous filtering channels are formed in the second filtering box body through multiple layers of partition plates, a filtering screen assembly is arranged in each filtering channel, a supporting bottom plate is arranged at the bottom of the filtering channel, a liquid storage part is arranged below the supporting plate, alkaline treatment liquid is filled in the liquid storage part, and a water pump is arranged in the liquid storage part, the water pump is connected with a backflow hole of the top plate of the second filtering box body through a liquid conveying pipeline, and the alkaline treatment liquid flows through the filtering net component from top to bottom and flows back to the liquid storage part; and an exhaust pipe is arranged at the bottom of the second filter box, and an active carbon filter assembly is arranged on the exhaust pipe.
Further, the liftable stirring assembly comprises a supporting plate, a spring is arranged between the bottom of the supporting plate and the bottom plate of the first filtering box body, a vertical connecting column is arranged at the top of the supporting plate and penetrates through the second connecting frame, and the second connecting frame is connected with the top wall of the first filtering box body; the top end of the connecting column is provided with a limiting roller, a spiral plate is arranged above the limiting roller and arranged on a horizontally arranged main shaft, and the main shaft is driven by a motor outside the first filtering box body.
Furthermore, the whole spiral plate is of a tapered structure which is gradually reduced; the second connection frame both ends are provided with first connecting rod and second connecting rod respectively, and the tail end of first connecting rod and second connecting rod all is provided with the push pedal, the cover is equipped with first connection frame on the first connecting rod, and first connection frame passes through the telescopic link and links to each other with the roof of first filtration box.
Furthermore, the supporting plate is provided with through holes, rotating shafts are arranged on the supporting plate in an array mode, and the top ends of the rotating shafts are provided with stirring blades.
Furthermore, the air outlet channel is communicated with the filtering channel on the uppermost layer in the second filtering box body, and a fan is arranged on the air outlet channel; set up on the baffle with the backflow hole position on the supporting baseplate corresponding backward flow through-hole, each layer filter screen subassembly vertical direction is the straight line and arranges, and each layer filter screen subassembly all is located backflow through-hole department on the baffle.
Further, the filter screen subassembly includes the filter screen, and both ends are carried on spacingly through last installing frame and lower installing frame respectively about the filter screen, and both ends carry on spacing installation through the side-mounting frame about the filter screen, the filter screen subassembly carries on spacingly through the spacing groove of the limiting plate formation on baffle or the supporting baseplate.
Furthermore, the upper mounting frame and the lower mounting frame are both provided with overflowing through holes and correspond to the positions of the backflow through holes of the partition plates.
Further, the active carbon filter component comprises a first mounting frame, one side of the first mounting frame is communicated with the exhaust pipe, a filter cloth bag is arranged in the first mounting frame, the other side of the first mounting frame is of an open structure and is connected with a second mounting frame, the other side of the second mounting frame is communicated with the tail gas exhaust pipe, and an active carbon layer is arranged in the second mounting frame.
Further, the exhaust pipe is connected with the first mounting frame through a corrugated pipe and a sealing bearing, and the tail gas exhaust pipe is connected with the second mounting frame through a corrugated pipe and a sealing bearing; one side of the second mounting frame is in threaded connection with the opening end of the first mounting frame through a connecting cylinder, and a filter screen plate is arranged at the port of the connecting cylinder; the activated carbon layer is installed through the installation drawer.
In addition, the invention also discloses an antimony smelting method of the device for separating antimony and gold in antimony smelting by adopting a pyrogenic process, which comprises the steps of volatilization smelting and reduction smelting, and is characterized in that the volatilization smelting adopts a blast smelting furnace to treat antimony sulfide ore or mixed ore containing 30-50% of antimony, and the mineral powder is firstly agglomerated by an agglomeration granulator; after charging of the blast smelting furnace is finished, performing volatilization smelting, and sequentially removing impurities such as arsenic, sulfur, iron, lead and the like in tail gas through a primary tail gas treatment component and a secondary tail gas treatment component; and (4) carrying out reduction smelting on the materials subjected to volatilization smelting, and finally refining to obtain refined antimony.
The invention has the beneficial effects that:
1. in order to solve the problems that the content of arsenic in tail gas is high and impurities are difficult to thoroughly and effectively filter through a conventional filter screen, the tail gas is fully reacted and purified by arranging the first filter box, adding a sodium sulfide solution into the first filter box through a chemical adding device, and forming a stirring assembly by matching with a liftable support plate and a left-right pushing plate, wherein the lower end of an air inlet pipe of the first filter box can be provided with an air guide pipe so that the tail gas enters the bottom of the first filter box.
Because the backup pad passes through the spring and links to each other with first filtration box bottom plate, backup pad upper portion is provided with the spliced pole, and the cover is equipped with the second installing frame on the spliced pole, and second installing frame one side is connected with first connecting rod, and the cover is equipped with first installing frame on the first connecting rod, and first installing frame passes through the telescopic link and links to each other with first filtration box roof. The main shaft can be driven to rotate by the motor, the main shaft drives the spiral plate to rotate, the spiral plate is matched with the limiting idler wheel to drive the connecting column to move towards the left lower direction or the right upper direction, and then the supporting plate is driven to synchronously displace to realize stirring operation; when the spiral plate drives the connecting column and the second connecting frame to move, the second connecting frame drives the first connecting rod and the second connecting rod to move in the left-right direction, and then the push plate is driven to stir. Thereby realize multidirectional stirring operation in the first filter tank, the backup pad can play the effect of blockking to the gas that rises from up down moreover, prolongs the time of gas and solution reaction.
2. For the effectual harmful substance who contains sulphur that detach in the tail gas, be convenient for simultaneously dismantle and change purifier, guarantee the intensity of purification, form circuitous filtration passageway through set up the baffle of multilayer in the second filter box, all install filter screen subassembly through the spacing groove in each layer filtration passageway, the solution extraction in the stock solution portion of bottom of the case portion is filtered to the second through the water pump simultaneously down drenches from the filter screen subassembly of topmost layer, it has purifying solution to realize all constantly keeping being stained with on each layer filter screen, tail gas accomplishes filtration many times through circuitous filtration passageway. Because solution on the filter screen is constantly replenished and updated again, the filtering capacity of each layer of filter screen is not reduced too fast, and the filter screen assembly is of a structure which can be conveniently extracted, disassembled and replaced, thereby avoiding overlong downtime and ensuring continuous operation of work.
3. In order to carry out the high degree purification back in can the safety discharge environment with gas, through set up active carbon filter component at tail gas calandria front end, it includes first installing frame and second installing frame, both realize threaded connection through the connecting cylinder, therefore the filter screen board of the connecting cylinder port department of second installing frame can screw in gradually in the first installing frame, thereby compress the filter sack in the first installing frame, filter substances such as sponge or silica gel granule can pack into in the filter sack, when filter the sack by the compression, its clearance reduces, make air filtering's speed slow down, prolong filterable time, strengthen filterable effect, adapt to different operating mode demands, filter the sack simultaneously and all can conveniently take out the change through the active carbon layer of drawer type installation.
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 diagram of the overall structure of the primary exhaust treatment assembly of the present invention.
Fig. 3 is a schematic view of the internal structure of the first filter housing of the present invention.
Fig. 4 is a schematic structural view of the spiral plate of the present invention.
Fig. 5 is a schematic structural diagram of the support plate of the present invention.
Fig. 6 is a schematic view showing an internal structure of a second filter housing according to the present invention.
Fig. 7 is a schematic view of the installation of the screen assembly of the present invention.
Fig. 8 is a schematic view of the installation of the filter net of the present invention.
Fig. 9 is a schematic structural view of an activated carbon filter assembly of the present invention.
The text labels in the figures are represented as: 100. a blast smelting furnace; 200. a primary tail gas treatment component; 300. a secondary tail gas treatment component; 1. an air inlet; 2. an air outlet pipe; 3. an air inlet pipe; 4. a first filter box; 5. a top cover; 6. a medicine adding device; 7. a motor; 8. an air outlet pipe; 9. a main shaft; 10. a spiral plate; 11. a telescopic rod; 12. pushing the plate; 13. a first connection frame; 14. a first link; 15. a second connection frame; 16. a second link; 17. a roller mounting frame; 18. limiting the idler wheel; 19. a support plate; 20. connecting columns; 21. a rotating shaft; 22. an elastic sheet; 23. a stirring blade; 24. a fan; 25. a second filter box; 26. a partition plate; 27. a filtration channel; 28. a support base plate; 29. a filter screen; 30. a return orifice; 31. mounting a frame; 32. a lower mounting frame; 33. a limiting plate; 34. a liquid storage part; 35. a water pump; 36. a fluid delivery conduit; 37. an activated carbon filter assembly; 38. an exhaust pipe; 39. a bellows; 40. a first mounting frame; 41. a second mounting frame; 42. a filter cloth bag; 43. a connecting cylinder; 44. installing a drawer; 45. an activated carbon layer; 46. a filter screen plate; 47. a side mounting frame; 48. and a tail gas exhaust pipe.
Detailed Description
The invention is further illustrated by the following examples.
A device for separating antimony and gold in antimony pyrometallurgy comprises a blast smelting furnace 100, wherein an air outlet pipe 2 of the blast smelting furnace 100 is connected with a first-stage tail gas treatment component 200 and a second-stage tail gas treatment component 300, and is characterized in that the first-stage tail gas treatment component 200 comprises a first filtering box body 4, a chemical adding device 6, an air inlet pipe 3 and an air outlet pipeline 8 are arranged on a top cover 5 of the first filtering box body 4, a liftable stirring plate component is arranged in the first filtering box body 4, the air outlet pipeline 8 of the first filtering box body 4 is connected with the second-stage tail gas treatment component 300, the second-stage tail gas treatment component 300 comprises a second filtering box body 25, a circuitous filtering channel 27 is formed in the second filtering box body 25 through a plurality of layers of partition plates 26, a filtering screen component is arranged in each layer of filtering channel 27, a supporting bottom plate 28 is arranged at the bottom of the filtering channel 27, and a liquid storage part 34 is arranged below the supporting plate 28 of the second filtering box body 25, the liquid storage part 34 is filled with alkaline treatment liquid and provided with a water pump 35, the water pump 35 is connected with the backflow hole 30 of the top plate of the second filter box body 25 through a liquid conveying pipeline 36, and the alkaline treatment liquid flows through the filter screen assembly from top to bottom and flows back to the liquid storage part 34; the bottom of the second filter tank 25 is provided with an exhaust pipe 38, and the exhaust pipe 38 is provided with an active carbon filter assembly 37.
Preferably, as shown in fig. 3, 4 and 5, the liftable stirring assembly comprises a supporting plate 19, a spring is arranged between the bottom of the supporting plate 19 and the bottom plate of the first filtering box 4, a vertical connecting column 20 is arranged at the top of the supporting plate 19, the connecting column 20 penetrates through the second connecting frame 15, and the second connecting frame 15 is connected with the top wall of the first filtering box 4; the top end of the connecting column 20 is provided with a limiting idler wheel 18, a spiral plate 10 is arranged above the limiting idler wheel 18, the spiral plate 10 is arranged on a spindle 9 which is horizontally arranged, and the spindle 9 is driven by a motor 7 outside the first filtering box body 4. The spiral plate 10 is of a gradually reduced conical structure as a whole; the both ends of second connecting frame 15 are provided with first connecting rod 14 and second connecting rod 16 respectively, and the tail end of first connecting rod 14 and second connecting rod 16 all is provided with push pedal 12, the cover is equipped with first connecting frame 13 on the first connecting rod 14, and first connecting frame 13 passes through telescopic link 11 and links to each other with the roof of first filtration box 4. The supporting plate 19 is provided with through holes, the rotating shaft 21 is arranged on the supporting plate 19 in an array mode, and the top end of the rotating shaft 21 is provided with a stirring blade 23.
Preferably, as shown in fig. 6, 7 and 8, the air outlet channel 8 is communicated with the uppermost filtering channel 27 in the second filtering box 25, and the air outlet channel 8 is provided with a fan 24; the baffle 26 is provided with a backflow through hole corresponding to the position of the backflow hole 30 on the support bottom plate 28, each layer of filter screen assembly is arranged in a straight line in the vertical direction, and each layer of filter screen assembly is located at the backflow through hole on the baffle 26. The filter screen subassembly includes filter screen 29, and both ends are spacing through last installing frame 31 and lower installing frame 32 respectively about filter screen 29, and both ends carry out spacing installation through side-mounting frame 47 about filter screen 29, the filter screen subassembly carries on spacingly through the spacing groove that limiting plate 33 on baffle 26 or the supporting baseplate 28 formed. The upper mounting frame 31 and the lower mounting frame 32 are both provided with through holes for overflowing and correspond to the positions of the reflux through holes of the partition plate 26.
The filter screen subassembly is installed for the spacing groove that forms through limiting plate 33, can conveniently extract to dismantle and change, avoids the down time of overlength, guarantees going on continuously of work.
Preferably, as shown in fig. 6 and 9, the activated carbon filter assembly 37 includes a first mounting frame 40, one side of the first mounting frame 40 is communicated with the exhaust pipe 38, a filter cloth bag 52 is disposed in the first mounting frame 40, the other side of the first mounting frame 40 is in an open structure and is connected to a second mounting frame 41, the other side of the second mounting frame 41 is communicated with the exhaust pipe 48, and an activated carbon layer 55 is disposed in the second mounting frame 41. The exhaust pipe 38 is connected with the first mounting frame 40 through a corrugated pipe 39 and a sealing bearing, and the tail gas exhaust pipe 48 is connected with the second mounting frame 41 through a corrugated pipe 39 and a sealing bearing; one side of the second mounting frame 41 is in threaded connection with the open end of the first mounting frame 40 through a connecting cylinder 43, and a filter screen plate 46 is arranged at the port of the connecting cylinder 43; the activated carbon layer 55 is installed by the installation drawer 44.
The active carbon filter assembly comprises a first mounting frame 40 and a second mounting frame 41, wherein the first mounting frame 40 and the second mounting frame 41 are in threaded connection through a connecting cylinder 43, the first mounting frame 40 is connected with the exhaust pipe 38 through a corrugated pipe 39 and a bearing, the second mounting frame 41 is connected with the tail gas exhaust pipe 48 through the corrugated pipe 39 and the bearing, and rotatable mounting of the first mounting frame 40 and the second mounting frame 41 is achieved. When the filter cloth bag 42 is compressed, the gap is reduced, so that the air filtering rate is reduced, the filtering time is prolonged, the filtering effect is enhanced, and different working condition requirements can be met.
In addition, the invention also discloses an antimony smelting method of the device for separating antimony and gold in antimony smelting by adopting a pyrogenic process, which comprises the steps of volatilization smelting and reduction smelting, and is characterized in that the volatilization smelting adopts a blast smelting furnace 100 to treat antimony sulfide ore or mixed ore containing 30-50% of antimony, and the mineral powder is firstly agglomerated by an agglomeration granulator; after charging, the blast smelting furnace 100 carries out volatilization smelting, and impurities such as arsenic, sulfur, iron, lead and the like in the tail gas are removed through the primary tail gas treatment component 200 and the secondary tail gas treatment component 300 in sequence; and (4) carrying out reduction smelting on the materials subjected to volatilization smelting, and finally refining to obtain refined antimony.
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 device for separating antimony and gold in pyrometallurgical antimony smelting comprises a blast furnace (100), wherein a first-stage tail gas treatment component (200) and a second-stage tail gas treatment component (300) are connected behind a wind outlet pipe (2) of the blast furnace (100), and is characterized in that the first-stage tail gas treatment component (200) comprises a first filtering box body (4), a chemical adding device (6), a gas inlet pipe (3) and a gas outlet pipeline (8) are arranged on a top cover (5) of the first filtering box body (4), a liftable stirring plate component is arranged in the first filtering box body (4), the gas outlet pipeline (8) of the first filtering box body (4) is connected behind the second-stage tail gas treatment component (300), the second-stage tail gas treatment component (300) comprises a second filtering box body (25), a circuitous filtering channel (27) is formed inside the second filtering box body (25) through a plurality of layers of partition plates (26), and a filtering net component is arranged in each layer of the filtering channel (27), a supporting bottom plate (28) is arranged at the bottom of the filtering channel (27) at the bottommost layer, a liquid storage part (34) is arranged below the supporting bottom plate (28) of the second filtering box body (25), alkaline treatment liquid is contained in the liquid storage part (34) and is provided with a water pump (35), the water pump (35) is connected with a backflow hole (30) of a top plate of the second filtering box body (25) through a liquid conveying pipeline (36), and the alkaline treatment liquid flows through the filtering net assembly from top to bottom and flows back to the liquid storage part (34); an exhaust pipe (38) is arranged at the bottom of the second filtering box (25), and an active carbon filtering component (37) is arranged on the exhaust pipe (38).
2. The device for separating antimony and gold from antimony by pyrometallurgy according to claim 1, wherein the liftable stirring assembly comprises a support plate (19), a spring is arranged between the bottom of the support plate (19) and the bottom plate of the first filtering box body (4), a vertical connecting column (20) is arranged at the top of the support plate (19), the connecting column (20) penetrates through the second connecting frame (15), and the second connecting frame (15) is connected with the top wall of the first filtering box body (4); the top end of the connecting column (20) is provided with a limiting roller (18), a spiral plate (10) is arranged above the limiting roller (18), the spiral plate (10) is arranged on a main shaft (9) which is horizontally arranged, and the main shaft (9) is driven by a motor (7) on the outer side of the first filtering box body (4).
3. The device for separating antimony and gold in antimony pyrometallurgy according to claim 2, wherein the spiral plate (10) has a tapered structure; the filter box is characterized in that a first connecting rod (14) and a second connecting rod (16) are respectively arranged at two ends of the second connecting frame (15), push plates (12) are respectively arranged at the tail ends of the first connecting rod (14) and the second connecting rod (16), a first connecting frame (13) is sleeved on the first connecting rod (14), and the first connecting frame (13) is connected with the top wall of the first filter box body (4) through a telescopic rod (11).
4. The device for separating antimony and gold in antimony pyrometallurgy according to claim 2, wherein the support plate (19) is provided with through holes, the support plate (19) is provided with rotating shafts (21) in an array manner, and the top ends of the rotating shafts (21) are provided with stirring blades (23).
5. The device for separating antimony and gold from antimony smelting by a pyrogenic process according to claim 1, wherein the gas outlet channel (8) is communicated with the uppermost filtering channel (27) in the second filtering tank body (25), and a fan (24) is arranged on the gas outlet channel (8); set up on baffle (26) with on supporting baseplate (28) backward flow through-hole (30) position corresponding backward flow through-hole, each layer filter screen subassembly vertical direction is the straight line and arranges, and each layer filter screen subassembly all is located backward flow through-hole department on baffle (26).
6. The device for separating antimony and gold in antimony pyrometallurgy according to claim 5, wherein the filter screen assembly comprises a filter screen (29), the upper end and the lower end of the filter screen (29) are respectively limited by an upper mounting frame (31) and a lower mounting frame (32), the left end and the right end of the filter screen (29) are limited and mounted by a side mounting frame (47), and the filter screen assembly is limited by a limiting groove formed by a limiting plate (33) on a partition plate (26) or a supporting bottom plate (28).
7. The device for separating antimony and gold from antimony smelting by a pyrogenic process according to claim 6, wherein the upper mounting frame (31) and the lower mounting frame (32) are both provided with through-flow holes and correspond to the positions of the through-flow holes of the partition plate (26).
8. The device for separating antimony and gold from antimony by pyrometallurgical refining according to claim 1, wherein the activated carbon filter assembly (37) comprises a first mounting frame (40), one side of the first mounting frame (40) is communicated with the exhaust pipe (38), a filter cloth bag (52) is arranged in the first mounting frame (40), the other side of the first mounting frame (40) is of an open structure and is connected with a second mounting frame (41), the other side of the second mounting frame (41) is communicated with a tail gas exhaust pipe (48), and an activated carbon layer (55) is arranged in the second mounting frame (41).
9. The device for separating antimony and gold from antimony by pyrometallurgical smelting according to claim 8, wherein the exhaust pipe (38) is connected with the first installation frame (40) through a corrugated pipe (39) and a sealing bearing, and the exhaust pipe (48) is connected with the second installation frame (41) through a corrugated pipe (39) and a sealing bearing; one side of the second mounting frame (41) is in threaded connection with the open end of the first mounting frame (40) through a connecting cylinder (43), and a filter screen plate (46) is arranged at the port of the connecting cylinder (43); the activated carbon layer (55) is mounted by means of a mounting drawer (44).
10. An antimony smelting method adopting the pyrometallurgical antimony smelting device of any one of claims 1 to 9, comprising volatilization smelting and reduction smelting, and is characterized in that the volatilization smelting adopts a blast smelting furnace (100) to treat antimony sulfide ore or mixed ore containing 30 to 50 percent of antimony, and the ore powder is firstly agglomerated by an agglomeration granulator; after charging, the blast smelting furnace (100) carries out volatilization smelting, and arsenic, sulfur, iron, lead and other impurities in the tail gas are removed sequentially through a primary tail gas treatment component (200) and a secondary tail gas treatment component (300); and (4) carrying out reduction smelting on the materials subjected to volatilization smelting, and finally refining to obtain refined antimony.
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| CN114797318B (en) | 2024-05-03 |
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Denomination of invention: A method and device for separating antimony and gold in pyrometallurgical antimony refining Granted publication date: 20240503 Pledgee: Guangxi Liuzhou SME Financing Guarantee Co.,Ltd. Pledgor: Guangxi wanshizhi rare precious metal Technology Co.,Ltd. Registration number: Y2024980042051 |
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