CN113278791B - Lead-zinc sulfate harmless treatment device and method - Google Patents
Lead-zinc sulfate harmless treatment device and method Download PDFInfo
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- CN113278791B CN113278791B CN202110531897.0A CN202110531897A CN113278791B CN 113278791 B CN113278791 B CN 113278791B CN 202110531897 A CN202110531897 A CN 202110531897A CN 113278791 B CN113278791 B CN 113278791B
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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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/005—Preliminary treatment of scrap
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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
- C22B13/00—Obtaining lead
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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
- C22B19/00—Obtaining zinc or zinc oxide
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to the technical field of metal compound treatment, in particular to a lead-zinc sulfate innocent treatment device which comprises a rotary cylinder, wherein a connecting ring is fixedly sleeved at an upper end port of the rotary cylinder, a driving mechanism for driving the connecting ring and the rotary cylinder to rotate is arranged on the outer surface of the connecting ring, a fixed cylinder is movably inserted from the upper part of the inner side of the connecting ring, a guide ring extends out of the inner wall of the connecting ring, the upper end surface and the lower end surface of the guide ring are respectively attached to a port of the fixed cylinder and a port of the rotary cylinder, the rotary cylinder is rotatably arranged on the upper end surface of a bottom plate through a lifting mechanism arranged at the lower end, the fixed cylinder is fixedly connected to the upper end surface of the bottom plate through a fixed structure, and a lead-zinc sulfate innocent treatment method is also provided, the invention can selectively convert lead and zinc sulfate into artificial sulfide ore with better floatability at low temperature, so that they can be recovered later by conventional sulfide ore flotation separation techniques.
Description
Technical Field
The invention relates to the technical field of metal compound treatment, in particular to a lead-zinc sulfate harmless treatment device and method.
Background
The sintering-blast furnace smelting process is the main process for smelting lead in China, and accounts for about 85 percent of the lead smelting industry; the boiling roasting-leaching-electrodeposition process is a main zinc smelting process in China, and accounts for 70% of the zinc smelting industry; the lead smelting process mainly generates rough smelting reduction furnace slag, rough smelting floating slag, refining floating slag, precious metal smelting waste slag and the like, wherein the rough smelting reduction furnace slag accounts for about 85 percent of the total slag; zinc smelting mainly produces zinc leaching residues, zinc purification crystallization residues, scum and the like, wherein the zinc purification residues account for about 94%, and the zinc-rich residues account for about 64%, and a large amount of lead-zinc-containing leaching residues are produced in the processes of comprehensive utilization of zinc hydrometallurgy and copper ash and bismuth smelting, and lead and zinc in the residues mainly exist in the form of sulfate. Because the existing lead-zinc market is bad and the treatment cost is high, the slag is mostly treated in a stockpiling or cheap selling mode. Therefore, slag is accumulated into a mountain, lead and zinc resources cannot be effectively utilized, environmental problems are more and more prominent, and forward development of the lead and zinc industry is restricted.
The existing zinc and copper smelting method comprehensively utilizes the zinc and copper ash and produces a large amount of leaching slag containing lead and zinc in the bismuth smelting process to cause environmental pollution, the cost for recovering lead and zinc by a wet method or a fire method is high, the fire method needs high-temperature roasting at thousands of ℃ and the wet method needs excessive treatment, so the conventional beneficiation method has high recovery difficulty.
Disclosure of Invention
The invention aims to provide a lead-zinc sulfate harmless treatment device and method for selectively converting lead and zinc sulfate into artificial sulfide ore with good floatability at low temperature.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a lead-zinc sulfate innocent treatment device comprises a rotating cylinder, wherein a connecting ring is fixedly sleeved at an upper end port of the rotating cylinder, a driving mechanism for driving the connecting ring and the rotating cylinder to rotate is arranged on the outer surface of the connecting ring, a fixed cylinder is movably inserted from the upper side of the inner side of the connecting ring, a guide ring extends out of the inner wall of the connecting ring, the upper end surface and the lower end surface of the guide ring are respectively attached to a port of the fixed cylinder and a port of the rotating cylinder, the rotating cylinder is rotatably arranged at the upper end surface of a bottom plate through a lifting mechanism arranged at the lower end, the fixed cylinder is fixedly connected to the upper end surface of the bottom plate through a fixing structure, an air inlet pipe is fixedly penetrated and extended downwards along a middle shaft of the fixed cylinder, a distance is reserved between the lower end of the air inlet pipe and the inner bottom surface of the rotating cylinder, and a plurality of inclined plate mechanisms are distributed on the outer surface of the air inlet pipe in an annular array manner, the inclined plate mechanism comprises a fixed inclined plate fixedly arranged on the outer surface of the air inlet pipe and a plurality of triangular blocks which are arranged on the outer surface of the fixed inclined plate in a sliding manner along the directions of two sides, the upper ends of the triangular blocks are jointly connected with a connecting edge movably attached to the upper end surface of the fixed inclined plate, one side edge of the connecting edge far away from the triangular blocks extends out of a thin plate part, the lower end of the thin plate part extends out of a thick plate part, the rear end surface of the fixed inclined plate is provided with a concave part, the thick plate part and the concave part are in sliding fit, an elastic mechanism is arranged between one side of the thick plate part close to the air inlet pipe and the inner wall of the concave part, a contact structure with the same height as that of the guide ring is arranged on one side edge of the thick plate part, a plurality of arc-shaped convex blocks used for discontinuously pushing the contact structure are arranged on the inner wall of the guide ring, a scraping plate extends out of the outer surface of the triangular blocks, and a cutting group is arranged between the lower end edge of the fixed inclined plate, the outer surface of the fixed inclined plate is provided with a circulating part, the outer surface of the triangular block is provided with a scraping part for dredging the circulating part when sliding along with the triangular block, one side of the fixed inclined plate, which is far away from the triangular block, is provided with an air guide mechanism, and the lower end face of the bottom plate is provided with a heating mechanism.
Preferably, the high position that one side border of fixed swash plate corresponds the guide ring has seted up the breach, the contact structure includes that the position department that keeps away from one side surface of intake pipe and corresponds the breach from thick plate portion extends out the bulge, the arc lug is used for the interrupted extrusion bulge, the up end of bulge rotates respectively installs the contact post, just the contact post is located the inboard of breach.
Preferably, the fixed cylinder further comprises an exhaust pipe fixedly connected to the upper end surface near the edge, an adding cover movably mounted on the upper end surface near the edge, and the rotating cylinder further comprises a discharge cover movably mounted on the outer surface of one side.
Preferably, the elastic mechanism comprises a guide rod vertically extending out from the outer surface of one side of the thick plate part close to the air inlet pipe and a return spring movably sleeved on the outer surface of the guide rod, and the end part of the guide rod movably penetrates through the outer surface of the fixed inclined plate and extends out of the limiting head.
Preferably, the cutting group includes connecting plate, the clear piece of scraping of fixed connection terminal surface under the connecting plate that extends from every triangle piece lower extreme, the lower terminal surface of the piece of scraping of clear and the inboard bottom surface of a rotating cylinder are laminated in the activity, it extends fixed stop towards the place ahead to correspond every one side of scraping the piece on the lower extreme border of fixed swash plate, the first point portion of cutting has been seted up to the tip of the piece of scraping of clear, the second point portion of cutting has been seted up to the tip of fixed stop.
Preferably, the fixed knot constructs including fixed mounting at the bottom plate up end near the support frame of corner, fixed connection at the fixed fishplate bar between support frame upper end and the solid fixed cylinder up end, actuating mechanism includes the motor of fixed mounting at the support frame up end, installs the transmission tooth post, the annular array at the motor drive axle head and arranges the transmission tooth at the go-between surface, the transmission tooth post meshes with the transmission tooth mutually.
Preferably, circulation portion is including running through the opening of seting up a plurality of at fixed swash plate surface, what the opening corresponded arranges in the rear of every triangle piece, clear portion of scraping includes that a plurality of extends from the triangle piece rear end face clear blade, clear blade corresponds the inboard of passing through every opening.
Preferably, the air guide mechanism comprises an air guide seat fixedly connected to the center of the bottom surface of the inner side of the fixed cylinder and an air guide column fixedly connected to the upper end of the air guide seat, the air guide seat is located below the air inlet pipe, a first separating arc plate is connected between the outer surface of the air guide seat and the edge of the fixed inclined plate, a second separating arc plate extends from one side, close to the first separating arc plate, of the outer surface of the air guide seat, a separating inclined plate extends from the edge of the second separating arc plate, and the separating inclined plate is located on one side, away from the triangular block, of the fixed inclined plate.
Preferably, heating mechanism includes the heating base of fixed mounting terminal surface under the bottom plate, the heating chamber has been seted up to the terminal surface before the inboard of heating base, the inflation tube has been added to one side surface of heating base, lift the bracket that the mechanism includes fixed mounting at the bottom plate up end, the heating opening has been seted up to the inboard of bracket, the dead slot that clamps has been seted up to the up end of bracket, the inboard bottom surface that clamps the dead slot rotates the roller of installing a plurality of annular array and arranging, the lower extreme activity card that rotates a section of thick bamboo is gone into the inboard that clamps the dead slot.
The harmless treatment method of the lead-zinc sulfate uses the device, and comprises the following steps:
s1, adding the ground lead sulfate and zinc sulfate waste residues into the fixed cylinder;
s2, adding crushed carbon powder with the weight part being one time more than the sum of the weight parts of lead sulfate and zinc sulfate into the fixed cylinder;
s3, connecting the upper end of the air inlet pipe with an air supply pipeline, and continuously introducing carbon monoxide gas;
s4, heating the inner side of the rotary drum by a heating mechanism, driving the rotary drum to rotate by a driving mechanism, lifting the powder on the inner side by a fixed inclined plate, further lifting the powder by a scraping plate which swings back and forth, and continuously blowing carbon monoxide gas from the lower end of an air inlet pipe;
and S5, finally, reducing the lead sulfate to lead sulfide on the inner side of the rotary cylinder, and reducing the zinc sulfate to zinc sulfide.
Compared with the prior art, the invention has the following beneficial effects:
1. adding powdered lead sulfate and zinc sulfate waste residue into the fixed cylinder, adding powdered carbon powder with weight one time greater than the sum of the weight of lead sulfate and zinc sulfate into the fixed cylinder, connecting the upper end of the air inlet pipe with an air supply pipeline, continuously introducing carbon monoxide gas, heating the inner side of the rotary cylinder by a heating mechanism, meanwhile, the driving mechanism drives the rotating cylinder to rotate, the fixed inclined plate raises the powder on the inner side, the scraping plate which swings back and forth further raises the powder, carbon monoxide gas is continuously blown in from the lower end of the air inlet pipe, finally lead sulfate is reduced to generate lead sulfide on the inner side of the rotating cylinder, zinc sulfate is reduced to generate zinc sulfide, and the heating temperature is kept at-DEG C in the whole process, the selective conversion of lead and zinc sulfates into artificial sulfide ores with better flotability at low temperature can be adopted so as to be convenient for recovering the lead and zinc sulfides by the conventional sulfide ore flotation separation technology.
2. Along with the rotation of a rotary drum, the inboard powder removes jointly thereupon, the powder is when the surface of fixed swash plate, under pushing of arc lug, make the contact post by interrupted contact, even make thick plate portion by pushing the removal, when the arc lug takes away under elastic mechanism's effect, can be reset under reset spring's elasticity effect, so when a rotary drum rotates, thick plate portion can be along horizontal reciprocating swing always, and the triangle-shaped piece is the synchronous oscillation also, the striking board back and forth oscillation promotes the powder on fixed swash plate surface to be raised, promote the powder and the abundant contact of the carbon monoxide that fills in below the intake pipe, promote reaction effect.
3. When the rotary drum rotates, the reciprocating swing of the triangular blocks effectively scrapes lead sulfide generated by reduction reaction on the surface of the fixed inclined plate, zinc sulfide, meanwhile, the cleaning and scraping blocks at the lower part are driven to reciprocate and swing, when the cleaning and scraping blocks move towards one side close to the fixed baffle plate, the lead sulfide positioned between the blocks and positioned on the bottom surface of the inner side of the rotary drum is scraped, zinc sulfide agglomerates are scraped, therefore, in the reaction process, the sending of concentrated agglomerates is prevented from influencing the proceeding of uniform reaction, the problem that the subsequent inner wall cleaning is inconvenient due to the concentrated agglomerates is solved, meanwhile, the scraped agglomerates can move along with the surface of the fixed inclined plate, and the powder is sent into the pushing and extruding of the triangular blocks, the gaps existing in the powder are increased, and the sufficient contact between carbon monoxide and the powder is facilitated.
4. When the rotary drum rotates, powder on the surface of the fixed inclined plate slides up relatively, part directly passes through the inner side of the through hole, and then falls between the separation inclined plate and the fixed inclined plate, the gas is introduced into the process of pressurizing at the gas inlet pipe, part of gas passes through the space between the first separation arc plate and the second separation arc plate, and further passes through the space between the separation inclined plate and the fixed inclined plate, so the powder passing through the inner side of the through hole can be blown up by gas, the full contact between the gas and the powder is facilitated, the full proceeding of reaction is promoted, and when the triangular block swings, the inner wall of the through hole is scraped by the cleaning scraper, the phenomenon of blocking is prevented, therefore, the lifting effect of the powder is ensured in the whole process, and the proceeding of full reaction is facilitated.
Drawings
FIG. 1 is a schematic structural view of an apparatus for recycling exhaust gas according to the present invention;
FIG. 2 is a partial half sectional view of an exhaust gas recycling device of the present invention;
FIG. 3 is a partial half sectional view from another perspective of an exhaust gas recovery and reuse apparatus according to the present invention;
FIG. 4 is a schematic view of a swash plate mechanism of an exhaust gas recycling device according to the present invention;
FIG. 5 is a schematic view of a triangular block of an apparatus for recycling exhaust gases according to the present invention;
FIG. 6 is a schematic view of the structure above the inclined plate mechanism of the exhaust gas recycling device of the present invention;
FIG. 7 is an enlarged view of the exhaust gas recycling device of FIG. 6 at A;
FIG. 8 is an enlarged view of the exhaust gas recycling device shown in FIG. 6 at B
FIG. 9 is a side view of a triangular block of an exhaust gas recovery and reuse apparatus of the present invention, taken near the upper end thereof;
FIG. 10 is a schematic view of a fixed inclined plate of the exhaust gas recycling device of the present invention;
FIG. 11 is a schematic view of another angle of the swash plate mechanism of the exhaust gas recycling device of the present invention;
FIG. 12 is an enlarged view of the exhaust gas recycling device of FIG. 10 at C;
FIG. 13 is a schematic view of a rotary drum of the exhaust gas recycling device of the present invention;
fig. 14 is an enlarged view of the exhaust gas recycling device of fig. 13 at D.
In the figure: 1. a rotating cylinder; 2. a fixed cylinder; 3. a connecting ring; 4. a transmission gear; 5. a base plate; 6. a support frame; 7. a motor; 8. a transmission tooth column; 9. a bracket; 10. a roller; 11. an air inlet pipe; 12. an exhaust pipe; 13. a discharge cover; 14. adding a cover; 15. a wind guide post; 16. a wind guide seat; 17. fixing the inclined plate; 18. a first dividing arc plate; 19. a second divided arc plate; 20. a separation sloping plate; 21. a thin plate portion; 22. a thick plate portion; 23. a recessed notch; 24. a protruding block; 25. a contact post; 26. a recessed portion; 27. a guide bar; 28. a return spring; 29. a limiting head; 30. a connecting edge; 31. scraping a plate; 32. a triangular block; 33. cleaning a scraping blade; 34. a connecting plate; 35. cleaning and scraping blocks; 36. a first cutting tip portion; 37. fixing a baffle plate; 38. a second cutting tip part; 39. a guide ring; 40. an arc-shaped bump; 41. fixing a connecting plate; 42. heating the port; 43. clamping the concave groove; 44. heating the susceptor; 45. an inflation tube; 46. a heating cavity; 47. a through port.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.
As shown in fig. 1-14, a lead-zinc sulfate innocent treatment device comprises a rotary cylinder 1, a connecting ring 3 is fixedly sleeved at an upper end port of the rotary cylinder 1, a driving mechanism for driving the connecting ring 3 and the rotary cylinder 1 to rotate is arranged on the outer surface of the connecting ring 3, a fixed cylinder 2 is movably inserted from the upper side of the inner side of the connecting ring 3, a guide ring 39 extends from the inner wall of the connecting ring 3, the upper end surface and the lower end surface of the guide ring 39 are respectively attached to the port of the fixed cylinder 2 and the port of the rotary cylinder 1, the rotary cylinder 1 is rotatably mounted on the upper end surface of a bottom plate 5 through a lifting mechanism arranged at the lower end, the fixed cylinder 2 is fixedly connected to the upper end surface of the bottom plate 5 through a fixing structure, an air inlet pipe 11 is fixedly penetrated and extends downwards along the central axis of the fixed cylinder 2, a distance is reserved between the lower end of the air inlet pipe 11 and the bottom surface of the inner side of the rotary cylinder 1, a plurality of inclined plate mechanisms are distributed on the outer surface of the air inlet pipe 11 in an annular array, the inclined plate mechanism comprises a fixed inclined plate 17 fixedly arranged on the outer surface of the air inlet pipe 11, a plurality of triangular blocks 32 arranged on the outer surface of the fixed inclined plate 17 in a sliding installation manner along the directions of two sides, the upper ends of the triangular blocks 32 are jointly connected with a connecting edge 30 movably attached to the upper end surface of the fixed inclined plate 17, a thin plate part 21 extends from one side edge of the connecting edge 30 far away from the triangular blocks 32, a thick plate part 22 extends from the lower end of the thin plate part 21, a concave part 26 is arranged on the rear end surface of the fixed inclined plate 17, the thick plate part 22 is in sliding fit with the concave part 26, an elastic mechanism is arranged between one side of the thick plate part 22 close to the air inlet pipe 11 and the inner wall of the concave part 26, a contact structure with the same height as the guide ring 39 is arranged on one side edge of the thick plate part 22, a plurality of arc-shaped convex blocks 40 used for intermittently pushing the contact structure extend from the inner wall of the guide ring 39, and a scraping plate 31 extends from the outer surface of the triangular blocks 32, a cutting group is arranged between the lower end of the triangular block 32 and the lower end edge of the fixed inclined plate 17, the outer surface of the fixed inclined plate 17 is provided with a circulating part, the outer surface of the triangular block 32 is provided with a cleaning part for dredging the circulating part when sliding along with the cleaning part, one side of the fixed inclined plate 17, which is far away from the triangular block 32, is provided with an air guide mechanism, and the lower end surface of the bottom plate 5 is provided with a heating mechanism.
The fixed cylinder 2 further comprises an exhaust pipe 12 fixedly connected to the upper end face and close to the edge, and an adding cover 14 movably mounted on the upper end face and close to the edge, after the adding cover 14 is opened, waste residues and carbon powder can be added, the rotating cylinder 1 further comprises a discharge cover 13 movably mounted on the outer surface of one side, and lead sulfide and zinc sulfide generated by reduction of the inner side are drawn out when the discharge cover 13 is opened.
The elastic mechanism comprises a guide rod 27 vertically extending from the outer surface of the thick plate part 22 close to the air inlet pipe 11, and a return spring 28 movably sleeved on the outer surface of the guide rod 27, the end part of the guide rod 27 movably penetrates through the outer surface of the fixed inclined plate 17 and extends out of a limiting head 29, and the limiting head 29 prevents the guide rod 27 from being separated from the inner side of the concave part 26.
The cutting group includes connecting plate 34 that extends from every triangle piece 32 lower extreme, fixed connection scrapes piece 35 at connecting plate 34 lower extreme face clearly, the lower extreme face of scraping piece 35 and the inboard bottom surface of a rotating cylinder 1 activity laminating, it extends fixed stop 37 towards the place ahead to correspond every one side of scraping piece 35 clearly on the lower extreme border of fixed swash plate 17, first cutting point portion 36 has been seted up to the tip of scraping piece 35 clearly, second cutting point portion 38 has been seted up to fixed stop 37's tip, first cutting point portion 36 helps making the caking of the inboard bottom surface of a fixed cylinder 1 to stab the bits and breaks away from with second cutting point portion 38.
Fixed knot constructs including fixed mounting at the support frame 6 that 5 up end of bottom plate is close to the corner, fixed connection is at fixed fishplate bar 41 between 6 upper ends of support frame and the 2 up end of solid fixed cylinder, be used for fixing solid fixed cylinder 2, actuating mechanism includes motor 7 of fixed mounting at 6 up end of support frame, install the transmission tooth post 8 at the motor 7 drive axle head, annular array arranges the driving tooth 4 at the go-between 3 surfaces, transmission tooth post 8 meshes with driving tooth 4 mutually, motor 7 drive transmission tooth post 8 rotates, and then order about under the cooperation of driving tooth 4 and rotate a section of thick bamboo 2.
Circulation portion is including running through the opening 47 of seting up a plurality of at fixed swash plate 17 surface, and what the opening 47 corresponds arranges at the rear of every triangle piece 32, and clear portion of scraping includes that a plurality of scrapes the piece 33 from the clear piece 33 that extends of triangle piece 32 rear end face, and clear scraping piece 33 corresponds the inboard of passing through every opening 47, plays clear effect of scraping opening 47 inboard, ensures unblocked.
The air guide mechanism comprises an air guide seat 16 fixedly connected to the center of the bottom surface of the inner side of the fixed cylinder 2, an air guide column 15 fixedly connected to the upper end of the air guide seat 16, the air guide seat 16 is located below the air inlet pipe 11, a first separating arc plate 18 is connected between the outer surface of the air guide seat 16 and the edge of the fixed inclined plate 17, a second separating arc plate 19 extends from one side, close to the first separating arc plate 18, of the outer surface of the air guide seat 16, a separating inclined plate 20 extends from the edge of the second separating arc plate 19, the separating inclined plate 20 is located on one side, far away from the triangular block 32, of the fixed inclined plate 17, and part of introduced carbon monoxide gas can be guided into the first separating arc plate 18 and the second separating arc plate 19 so as to blow powder between the fixed inclined plate 17 and the separating inclined plate 20.
The heating mechanism comprises a heating base 44 fixedly installed on the lower end face of the bottom plate 5, a heating cavity 46 is formed in the front end face of the inner side of the heating base 44, an inflation tube 45 is added to the outer surface of one side of the heating base 44, the lifting mechanism comprises a bracket 9 fixedly installed on the upper end face of the bottom plate 5, a heating through hole 42 is formed in the inner side of the bracket 9, fuel is added into the heating cavity 46 during use, combustion-supporting gas is filled into the inflation tube 45 to fully combust the fuel to generate heat and supply heat for the rotary drum 1, a clamping concave groove 43 is formed in the upper end face of the bracket 9, a plurality of rollers 10 which are arranged in an annular array are rotatably installed on the bottom face of the inner side of the clamping concave groove 43, and the lower end of the rotary drum 1 is movably clamped into the inner side of the clamping concave groove 43 to assist the rotary drum 1 to rotate.
The harmless treatment method of the lead-zinc sulfate uses the device, and comprises the following steps:
s1, adding the ground lead sulfate and zinc sulfate waste residues into the fixed cylinder 2;
s2, adding crushed carbon powder with the weight part being more than one time of the sum of the weight parts of lead sulfate and zinc sulfate into the fixed cylinder 2;
s3, connecting the upper end of the gas inlet pipe 11 with a gas supply pipeline, and continuously introducing carbon monoxide gas;
s4, heating the inner side of the rotary drum 1 by a heating mechanism, driving the rotary drum 1 to rotate by a driving mechanism, lifting the powder on the inner side by a fixed inclined plate 17, further lifting the powder by a scraping plate 31 which swings back and forth, and continuously blowing carbon monoxide gas from the lower end of an air inlet pipe 11;
and S5, finally, reducing the lead sulfate to lead sulfide in the rotating cylinder 1, and reducing the zinc sulfate to zinc sulfide.
Adding powdered lead sulfate and zinc sulfate waste residues into a fixed cylinder 2, adding powdered carbon powder with weight more than one time of the sum of the weight of the lead sulfate and the zinc sulfate into the fixed cylinder 2, connecting the upper end of an air inlet pipe 11 with an air supply pipeline, continuously introducing carbon monoxide gas, heating the inner side of a rotary cylinder 1 by a heating mechanism, driving the rotary cylinder 1 to rotate by a driving mechanism, lifting the powder in the inner side by a fixed inclined plate 17, further lifting the powder by a scraping plate 31 which swings back and forth, continuously blowing the carbon monoxide gas from the lower end of the air inlet pipe 11, finally reducing the lead sulfate into lead sulfide in the inner side of the rotary cylinder 1, reducing the zinc sulfate into zinc sulfide, keeping the heating temperature at 700 ℃ and 750 ℃ in the whole process, selectively converting lead sulfate and zinc sulfate into artificial sulfide ore with good floatability at low temperature, so as to be recovered by the conventional sulfide ore flotation separation technology; along with the rotation of the rotary cylinder 1, the powder on the inner side moves together with the rotary cylinder, when the powder passes through the surface of the fixed inclined plate 17, the powder is pushed by the arc-shaped lug 40, so that the contact column 25 is contacted discontinuously, namely the thick plate part 22 is pushed to move, and when the arc-shaped lug 40 moves away under the action of the elastic mechanism, the powder is reset under the action of the elastic force of the reset spring 28, so that when the rotary cylinder 1 rotates, the thick plate part 22 can swing transversely and repeatedly all the time, the triangular block 32 also swings synchronously, the scraping plate 31 swings back and forth to promote the powder on the surface of the fixed inclined plate 17 to be lifted, promote the powder to be fully contacted with the carbon monoxide charged below the air inlet pipe 11, and promote the reaction effect; while the rotary cylinder 1 rotates, the reciprocating swing of the triangular block 32 effectively scrapes lead sulfide and zinc sulfide generated on the surface of the fixed inclined plate 17 due to reduction reaction, and drives the scraping block 35 at the lower part to reciprocate, when the scraping block 35 moves towards one side close to the fixed baffle 37, lead sulfide and zinc sulfide agglomerates located between the scraping blocks and located on the bottom surface of the inner side of the rotary cylinder 1 are scraped, so that the problems that uniform reaction is influenced by sending concentrated agglomerates and subsequent inner wall cleaning is inconvenient due to the concentrated agglomerates are prevented in the reaction process, and meanwhile, the scraped agglomerates can move along with the surface of the fixed inclined plate 17 and are fed into powder under the pushing of the triangular block 32, so that gaps existing in the powder are increased, and full contact between carbon monoxide and the powder is facilitated; when the rotary drum 1 rotates, the powder on the surface of the fixed inclined plate 17 slides upwards relatively, part of the powder directly passes through the inner side of the through hole 47 and then falls between the separation inclined plate 20 and the fixed inclined plate 17, in the process of pressurizing and introducing gas at the air inlet pipe 11, part of the gas passes through the space between the first separation arc plate 18 and the second separation arc plate 19 and further passes through the space between the separation inclined plate 20 and the fixed inclined plate 17, therefore, the powder on the inner side of the through hole 47 can be blown up by the gas, which is beneficial to the full contact between the gas and the powder and the full proceeding of the reaction, and when the triangular block 32 swings, the cleaning blade 33 cleans the inner wall of the through hole 47, so that the blocking phenomenon is prevented, the raising effect of the powder is ensured in the whole process, and the full reaction is facilitated.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a lead zinc sulfate innocent treatment device, includes and rotates a section of thick bamboo (1), its characterized in that: the upper end port of the rotating cylinder (1) is fixedly sleeved with a connecting ring (3), the outer surface of the connecting ring (3) is provided with a driving mechanism for driving the connecting ring (3) and the rotating cylinder (1) to rotate, a fixed cylinder (2) is movably inserted from the upper side of the inner side of the connecting ring (3), a guide ring (39) extends out of the inner wall of the connecting ring (3), the upper end surface and the lower end surface of the guide ring (39) are respectively attached to the port of the fixed cylinder (2) and the port of the rotating cylinder (1), the rotating cylinder (1) is rotatably installed on the upper end surface of the bottom plate (5) through a lifting mechanism arranged at the lower end, the fixed cylinder (2) is fixedly connected to the upper end surface of the bottom plate (5) through a fixing structure, an air inlet pipe (11) is fixedly penetrated and extended downwards along the central axis of the fixed cylinder (2), and a distance is reserved between the lower end of the air inlet pipe (11) and the inner bottom surface of the rotating cylinder (1), the air inlet pipe is characterized in that a plurality of inclined plate mechanisms are distributed on the outer surface of the air inlet pipe (11) in an annular array manner, each inclined plate mechanism comprises a fixed inclined plate (17) fixedly mounted on the outer surface of the air inlet pipe (11) and a plurality of triangular blocks (32) slidably mounted along the directions of two sides on the outer surface of the fixed inclined plate (17), the upper ends of the triangular blocks (32) are jointly connected with a connecting edge (30) movably attached to the upper end surface of the fixed inclined plate (17), a thin plate part (21) extends out of one side edge of the connecting edge (30) far away from the triangular blocks (32), a thick plate part (22) extends out of the lower end of the thin plate part (21), a concave part (26) is formed in the rear end surface of the fixed inclined plate (17), the thick plate part (22) is in sliding fit with the concave part (26), and an elastic mechanism is arranged between one side, close to the air inlet pipe (11), of the thick plate part (22) and the inner wall of the concave part (26), be provided with the contact structure who waits for high with guide ring (39) on the one side border of thick plate portion (22), extend on the inner wall of guide ring (39) a plurality of and be used for interrupting arc lug (40) of pushing contact structure, the surface of three hornblocks (32) extends scrapes board (31), be provided with the cutting group between the lower extreme of three hornblocks (32) and the lower extreme border of fixed swash plate (17), the surface of fixed swash plate (17) is provided with the circulation portion, the surface of three hornblocks (32) is provided with the clear portion of scraping that dredges the circulation portion when sliding thereupon, the one side of keeping away from three hornblocks (32) of fixed swash plate (17) is provided with air guide mechanism, the lower terminal surface of bottom plate (5) is provided with heating mechanism.
2. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: sunken breach (23) have been seted up to the high position that one side border of fixed swash plate (17) corresponds guide ring (39), the contact structure includes that one side surface of keeping away from intake pipe (11) from thick plate portion (22) and corresponding the position department of sunken breach (23) extend and stretch out salient piece (24), arc lug (40) are used for the crowded salient piece (24) of pushing away that is interrupted, the up end of salient piece (24) rotates respectively and installs contact post (25), just contact post (25) are located the inboard of sunken breach (23).
3. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: the fixed cylinder (2) further comprises an exhaust pipe (12) fixedly connected to the upper end face close to the edge, and an adding cover (14) movably mounted on the upper end face close to the edge, and the rotating cylinder (1) further comprises a discharge cover (13) movably mounted on the outer surface of one side.
4. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: the elastic mechanism comprises a guide rod (27) vertically extending out of the outer surface of one side, close to the air inlet pipe (11), of the thick plate part (22) and a return spring (28) movably sleeved on the outer surface of the guide rod (27), and the end part of the guide rod (27) movably penetrates through the outer surface of the fixed inclined plate (17) and extends out of the limiting head (29).
5. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: the cutting group includes connecting plate (34), the clear piece (35) of scraping of terminal surface under connecting plate (34) of fixed connection that extend from every triangle piece (32) lower extreme, the activity laminating between the lower terminal surface of scraping piece (35) and the inboard bottom surface of a rotating cylinder (1) clearly, one side that corresponds every clear piece (35) of scraping on the lower extreme border of fixed swash plate (17) extends fixed stop (37) towards the place ahead, first point portion (36) of cutting has been seted up to the tip of scraping piece (35), second point portion (38) of cutting has been seted up to the tip of fixed stop (37).
6. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: fixed knot constructs including fixed mounting at bottom plate (5) up end near support frame (6), the fixed fishplate bar (41) of fixed connection between support frame (6) upper end and solid fixed cylinder (2) up end of corner, actuating mechanism includes motor (7) of fixed mounting at support frame (6) up end, installs at transmission tooth post (8), the annular array of motor (7) drive axle head and arranges transmission tooth (4) at go-between (3) surface, transmission tooth post (8) mesh with transmission tooth (4).
7. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: the circulation portion is including running through a plurality of seting up at fixed swash plate (17) surface through mouthful (47), what pass through mouthful (47) correspond arranges in the rear of every triangle piece (32), clear portion of scraping includes clear doctor-bar (33) that a plurality of extends from triangle piece (32) rear end face, clear doctor-bar (33) correspond the inboard of passing through every through mouthful (47).
8. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: the air guide mechanism comprises an air guide seat (16) fixedly connected to the center of the inner bottom surface of the fixed cylinder (2) and an air guide column (15) fixedly connected to the upper end of the air guide seat (16), the air guide seat (16) is located below the air inlet pipe (11), a first partition arc plate (18) is connected between the outer surface of the air guide seat (16) and the edge of the fixed inclined plate (17), a second partition arc plate (19) extends from one side, close to the first partition arc plate (18), of the outer surface of the air guide seat (16), a partition inclined plate (20) extends from the edge of the second partition arc plate (19), and the partition inclined plate (20) is located on one side, away from the triangular block (32), of the fixed inclined plate (17).
9. The lead-zinc sulfate harmless treatment device according to claim 1, characterized in that: heating mechanism includes heating base (44) of terminal surface under fixed mounting bottom plate (5), heating chamber (46) have been seted up to the terminal surface before the inboard of heating base (44), add one side surface of heating base (44) and have gas tube (45), lift mechanism includes bracket (9) of fixed mounting at bottom plate (5) up end, heating opening (42) have been seted up to the inboard of bracket (9), the up end of bracket (9) has been seted up and has been clamped depressed groove (43), the inboard bottom surface rotation that clamps depressed groove (43) installs roller (10) that a plurality of annular array arranged, the lower extreme activity card that rotates a section of thick bamboo (1) is gone into and is clamped the inboard of depressed groove (43).
10. A method for harmless treatment of lead-zinc sulfate using the apparatus according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, adding the lead sulfate and the zinc sulfate waste slag which are ground into powder into the inner side of the fixed cylinder (2);
s2, adding crushed carbon powder with the weight part being more than one time of the sum of the weight parts of lead sulfate and zinc sulfate into the fixed cylinder (2);
s3, connecting the upper end of the air inlet pipe (11) with an air supply pipeline, and continuously introducing carbon monoxide gas;
s4, heating the inner side of the rotary drum (1) by a heating mechanism, driving the rotary drum (1) to rotate by a driving mechanism, lifting the powder on the inner side by a fixed inclined plate (17), further lifting the powder by a scraping plate (31) which swings back and forth, and continuously blowing carbon monoxide gas from the lower end of an air inlet pipe (11) during the process;
and S5, finally, reducing the lead sulfate to lead sulfide in the inner side of the rotating cylinder (1), and reducing the zinc sulfate to zinc sulfide.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3335870B2 (en) * | 1997-03-28 | 2002-10-21 | 株式会社クボタ | Rotary drum type heat treatment equipment |
| JP4776541B2 (en) * | 2004-09-29 | 2011-09-21 | 日本坩堝株式会社 | Heat treatment apparatus and heat treatment method |
| JP2013159520A (en) * | 2012-02-03 | 2013-08-19 | Jnc Corp | Recovery device for zinc chloride and/or zinc, and recovery method for zinc chloride and/or zinc using the same |
| CN103103344A (en) * | 2013-03-01 | 2013-05-15 | 中南大学 | Dressing-smelting combined treatment method for sulfate-containing lead-zinc smelting slags |
| CN104791813B (en) * | 2015-04-23 | 2017-07-28 | 格林斯达(北京)环保科技有限公司 | A kind of waste gas combustion furnace |
| CN105671328B (en) * | 2016-03-25 | 2017-11-07 | 江苏省冶金设计院有限公司 | Handle the rotary hearth furnace and method of lead and zinc smelting dreg |
| CN106947871A (en) * | 2017-03-10 | 2017-07-14 | 昆明理工大学 | A kind of leaded zinc sulfate slag charge reinforcing sulfide flotation reclaims lead zinc method |
| CN112267022A (en) * | 2020-09-10 | 2021-01-26 | 安徽华铂再生资源科技有限公司 | Sulfuric acid diachylon smelting method based on waste lead storage battery |
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