CN112301380A - Molten salt electrolysis device for preparing rare earth metal - Google Patents
Molten salt electrolysis device for preparing rare earth metal Download PDFInfo
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- CN112301380A CN112301380A CN202011207117.9A CN202011207117A CN112301380A CN 112301380 A CN112301380 A CN 112301380A CN 202011207117 A CN202011207117 A CN 202011207117A CN 112301380 A CN112301380 A CN 112301380A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
- C25C7/08—Separating of deposited metals from the cathode
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Abstract
The invention relates to a molten salt electrolysis device for preparing rare earth metals, which comprises an electrolysis box, wherein an electrolysis bath is arranged in the electrolysis box, and a sealing cover is arranged on the top of the electrolysis box, which is close to the electrolysis bath. This a fused salt electrolytic device for rare earth metal preparation usefulness, the motor passes through the second gear and drives the dwang rotation, the dwang drives the cathode bar and rotates, make the cathode bar adjust the interval between each side and the anode bar through rotating, it is more even to make the metal that the cathode bar surface was appeared, can effectual improvement rare earth metal appear efficiency, the cathode bar drives first reciprocal lead screw through first lead screw base and carries out the revolution simultaneously, first reciprocal lead screw drives third gear and fourth gear and produces relative movement, make the fourth gear drive first reciprocal lead screw rotation through the third gear, make first reciprocal lead screw drive scrape the knife rest and reciprocate with the scraper, scrape cathode bar surface metal down, the efficiency of appearing of improvement metal that can step forward.
Description
Technical Field
The invention relates to the technical field of molten salt electrolysis, in particular to a molten salt electrolysis device for preparing rare earth metals.
Background
The preparation of rare earth metal by molten salt electrolysis is a method of obtaining electrons from rare earth ions in molten salt electrolyte containing rare earth metal at the cathode of an electrolytic cell and reducing the electrons into metal under the action of direct current, and the rare earth metal is generally prepared by industrially adopting chloride molten salt electrolyte.
When metal is precipitated on the surface of a cathode of the conventional molten salt electrolysis device, along with the precipitation of the metal, the capability of the cathode for obtaining electrons is weakened, so that the precipitation efficiency of the metal is reduced, the metal cannot be scraped off while the metal is precipitated on the cathode, and the molten salt electrolysis device is inconvenient to use.
Disclosure of Invention
The invention aims to provide a molten salt electrolysis device for preparing rare earth metals, which aims to solve the problems that when metal is precipitated on the surface of a cathode by the conventional molten salt electrolysis device, the capability of the cathode for obtaining electrons is weakened along with the precipitation of the metal, so that the precipitation efficiency of the metal is reduced, the metal cannot be scraped off while the metal is precipitated on the cathode, and the use is inconvenient.
In order to achieve the purpose, the invention provides the following technical scheme: a fused salt electrolysis device for preparing rare earth metals comprises an electrolytic tank, an electrolytic cell is arranged in the electrolytic tank, a sealing cover is arranged at the top of the electrolytic tank close to the electrolytic cell, an anode rod is connected with one side of the sealing cover close to the electrolytic cell in a threaded manner, wherein,
the other side, close to the electrolytic cell, of the sealing cover is rotatably connected with a rotating rod, a cathode rod is fixed at the bottom of the rotating rod, a first gear is fixed at the top of the rotating rod, close to the sealing cover, a motor is installed at the top of the sealing cover, close to the first gear, a second gear is fixed at the shaft end of the motor and is meshed with the first gear, a first lead screw base is fixedly connected at the bottom of the cathode rod, first reciprocating lead screws are rotatably connected at the tops of two sides of the first lead screw base, and a third gear is fixed at the tops of the first reciprocating lead screws;
a fourth gear is fixed at the bottom of the sealing cover between the third gears, a scraper frame is sleeved on the cathode rod, two sides of the scraper frame are in threaded connection with the first reciprocating screw rod, a scraper is fixed on the inner side of the scraper frame, a spiral feeder is installed inside one side of the electrolytic cell close to the cathode rod, a feed inlet is formed in one side of the spiral feeder close to the bottom, a spiral rod is rotatably connected inside the spiral feeder, a discharge pipe is communicated with the other side of the spiral feeder close to the top, and one end of the discharge pipe, far away from the spiral feeder, penetrates through the inside of the electrolytic tank and extends to the outside;
a communicating opening is formed in one side, close to the lower portion of the discharge pipe, of the spiral feeder, the top of the spiral rod penetrates through the interior of the spiral feeder and extends to the outside, a first driving wheel is fixed to the top of the spiral rod, a second driving wheel is fixed to the outside, corresponding to the position of the first driving wheel, of the rotating rod, a driving belt is sleeved on the first driving wheel and the second driving wheel and meshed with the first driving wheel and the second driving wheel, a connecting rod is rotatably connected to the top of the sealing cover, a fifth gear is fixed to one side, close to the first gear, of the connecting rod, and the fifth gear is meshed with the first gear;
a sixth gear is fixed at one end, away from the fifth gear, of the connecting rod, a second lead screw base is fixed at the bottom of the anode rod, a second reciprocating lead screw is rotatably connected to one side of the top of the second lead screw base, the top of the second reciprocating lead screw penetrates through the inside of the sealing cover and extends to the outside, a seventh gear is fixed at the top of the second reciprocating lead screw, the seventh gear is meshed with the sixth gear, a brush hair holder is sleeved on the anode rod, one side of the brush hair holder is in threaded connection with the second reciprocating lead screw, and a piston rod is fixed at the top of one side, away from the second reciprocating lead screw, of the brush hair holder;
the top of the piston rod penetrates through the inside of the sealing cover and extends to the top, close to the piston rod, of the sealing cover is provided with a piston cylinder, the top of the piston rod is located inside the piston cylinder, the top of the piston rod is fixedly provided with a piston, one side, close to the bottom, of the piston cylinder is communicated with the electrolytic bath through a first exhaust pipe, a first one-way valve is arranged inside the first exhaust pipe, and one side, close to the top, of the piston cylinder is communicated with the electrolytic bath through a second exhaust pipe;
the exhaust system is characterized in that a second one-way valve is mounted inside the second exhaust pipe, a gas collection box is mounted at the top of the sealing cover, the piston cylinder is close to the other side of the bottom and communicated with the gas collection box through a first exhaust pipe, a third one-way valve is mounted inside the first exhaust pipe, the piston cylinder is close to the other side of the top and communicated with the gas collection box through a second exhaust pipe, and a fourth one-way valve is mounted inside the second exhaust pipe.
Preferably, the scraper is annular, and the scraper is fixed on the inner side of the scraper frame through welding.
Preferably, the communication port is a net-shaped port, and the top of the communication port is higher than the liquid level of the electrolytic tank.
Preferably, the first transmission wheel and the second transmission wheel form a transmission structure through a transmission belt.
Preferably, the bristle holder is annular, the inner diameter of the bristle holder is larger than the outer diameter of the anode rod, and bristles are fixed on the inner side of the bristle holder.
Preferably, the piston is made of rubber materials, and the outer diameter of the piston is equal to the inner diameter of the piston cylinder.
Preferably, the first check valve and the second check valve are in one-way communication from the electrolytic bath to the piston cylinder.
Preferably, the third check valve and the fourth check valve are communicated from the piston cylinder to the gas collecting tank in a one-way mode.
Compared with the prior art, the invention has the beneficial effects that:
1. this a fused salt electrolytic device for rare earth metal preparation usefulness, the motor passes through the second gear and drives the dwang rotation, the dwang drives the cathode bar and rotates, make the cathode bar adjust the interval between each side and the anode bar through rotating, it is more even to make the metal that the cathode bar surface was appeared, can effectual improvement rare earth metal appear efficiency, the cathode bar drives first reciprocal lead screw through first lead screw base and carries out the revolution simultaneously, first reciprocal lead screw drives third gear and fourth gear and produces relative movement, make the fourth gear drive first reciprocal lead screw rotation through the third gear, make first reciprocal lead screw drive scrape the knife rest and reciprocate with the scraper, scrape cathode bar surface metal down, the efficiency of appearing of improvement metal that can step forward.
2. This a fused salt electrolytic device for rare earth metal preparation usefulness, when the dwang rotated, the dwang drove the rotation of second drive wheel, the second drive wheel passes through the drive belt and drives first drive wheel synchronous rotation, make first drive wheel drive the hob and rotate, the metal deposits behind the bottom of electrolysis trough, through the electrolysis trough of slope, make the metal flow towards the feed inlet direction of glassware on the spiral, after the metal gets into the inside of glassware on the spiral, the hob drove metal and electrolyte and upwards removes, when the electrolyte rises to intercommunication mouth department, flow through the intercommunication mouth, filter the metal through netted intercommunication mouth simultaneously, make the metal continue rebound, later discharge through the discharging pipe, can be when scraping the metal through the scraper, be convenient for take out the metal that will appear from the electrolysis trough.
3. This a fused salt electrolytic device for rare earth metal preparation usefulness, during first gear revolve, first gear drives fifth gear through the meshing and rotates, and fifth gear passes through the connecting rod and drives sixth gear and rotate, makes the sixth gear drive seventh gear through the meshing and rotates, and the seventh gear drives the reciprocal lead screw of second and rotates, makes the reciprocal lead screw of second drive brush hair holder reciprocate, can rotate at the negative pole and improve under the chlorine bubble brush of positive pole surface adhesion when metal is appeared in the efficiency.
4. When the brush hair frame moves downwards, the brush hair frame drives the piston to move downwards through the piston rod, so that the inside of a piston cylinder above the piston is in a negative pressure state, the second check valve is opened, chlorine in an electrolytic bath is pumped into the inside of the piston cylinder through the second exhaust pipe, meanwhile, the inside of the piston cylinder below the piston is in a high pressure state, the third check valve is opened, the chlorine is pumped into the inside of a gas collecting box through the first exhaust pipe, when the brush hair frame moves upwards, the brush hair frame drives the piston to move upwards, so that the inside of the piston cylinder below the piston is in a negative pressure state, the first check valve is opened, the chlorine is pumped into the inside of the piston cylinder through the first exhaust pipe, meanwhile, the inside of the piston cylinder above the piston is in a high pressure state, the fourth check valve is opened, the chlorine is pumped into the inside of the gas collecting box through the, when brushing off the chlorine on the surface of the anode rod, the chlorine in the electrolytic cell can be continuously pumped into the gas collecting box through the piston cylinder, so that the chlorine is prevented from reacting with the separated metal.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the engagement between the third gear and the fourth gear according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 1 at B according to the present invention;
FIG. 5 is an enlarged view of a portion of the structure shown at C in FIG. 1.
In the figure: 1. an electrolytic tank; 2. an electrolytic cell; 3. a sealing cover; 4. an anode rod; 5. rotating the rod; 6. a cathode rod; 7. a first gear; 8. a motor; 9. a second gear; 10. a first lead screw base; 11. a first reciprocating screw rod; 12. a third gear; 13. a fourth gear; 14. a doctor holder; 15. a scraper; 16. a spiral feeder; 17. a feed inlet; 18. a screw rod; 19. a discharge pipe; 20. a communication port; 21. a first drive pulley; 22. a second transmission wheel; 23. a transmission belt; 24. a connecting rod; 25. a fifth gear; 26. a sixth gear; 27. a second screw base; 28. a second reciprocating screw rod; 29. a seventh gear; 30. a bristle holder; 31. a piston rod; 32. a piston cylinder; 33. a piston; 34. a first exhaust tube; 35. a first check valve; 36. a second extraction tube; 37. a second one-way valve; 38. a gas collection tank; 39. a first exhaust pipe; 40. a third check valve; 41. a second exhaust pipe; 42. a fourth check valve; 43. and (3) brush hairs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a molten salt electrolysis device for preparing rare earth metals comprises an electrolysis box 1, an electrolysis tank 2, a sealing cover 3, an anode rod 4, a rotating rod 5, a cathode rod 6, a first gear 7, a motor 8, a second gear 9, a first screw rod base 10, a first reciprocating screw rod 11, a third gear 12, a fourth gear 13, a scraper frame 14, a scraper 15, a spiral feeder 16, a feed inlet 17, a spiral rod 18, a discharge pipe 19, a communication port 20, a first transmission wheel 21, a second transmission wheel 22, a transmission belt 23, a connection rod 24, a fifth gear 25, a sixth gear 26, a second screw rod base 27, a second reciprocating screw rod 28, a seventh gear 29, a brush hair frame 30, a piston rod 31, a piston cylinder 32, a piston 33, a first suction pipe 34, a first one-way valve 35, a second suction pipe 36, a second one-way valve 37, a gas collection box 38, a first gas discharge pipe 39, a third one-way valve 40, a second gas discharge pipe 41, a fourth one-way valve 42 and bristles 43, wherein the electrolytic tank 2 is arranged in the electrolytic tank 1, a sealing cover 3 is arranged on the top of the electrolytic tank 1 close to the electrolytic tank 2, an anode rod 4 is connected with one side of the sealing cover 3 close to the electrolytic tank 2 in a threaded manner, wherein,
the other side, close to the electrolytic cell 2, of the sealing cover 3 is rotatably connected with a rotating rod 5, a cathode rod 6 is fixed at the bottom of the rotating rod 5, a first gear 7 is fixed at the top, close to the sealing cover 3, of the rotating rod 5, a motor 8 is installed at the top, close to the first gear 7, of the sealing cover 3, a second gear 9 is fixed at the shaft end of the motor 8, the second gear 9 is meshed with the first gear 7, a first lead screw base 10 is fixedly connected at the bottom of the cathode rod 6, first reciprocating lead screws 11 are rotatably connected at the tops of two sides of the first lead screw base 10, and third gears 12 are fixed at the tops of the first reciprocating lead screws 11;
the bottom of the sealing cover 3 between the third gears 12 is fixedly provided with a fourth gear 13, the cathode rod 6 is sleeved with a scraper frame 14, two sides of the scraper frame 14 are in threaded connection with a first reciprocating screw rod 11, the inner side of the scraper frame 14 is fixedly provided with a scraper 15, the scraper 15 is annular, the scraper 15 is fixedly arranged on the inner side of the scraper frame 14 through welding, when the first reciprocating screw rod 11 rotates, the first reciprocating screw rod 11 drives the scraper frame 14 to move up and down, the scraper frame 14 drives the scraper 15 to move relative to the cathode rod 6, metal precipitated on the surface of the cathode rod 6 can be scraped through the scraper 15, the reaction efficiency of the cathode rod 6 is improved conveniently, a spiral feeding device 16 is arranged inside one side of the electrolytic cell 2 close to the cathode rod 6, the spiral feeding device 16 is provided with a feeding hole 17 close to one side of the bottom, the spiral feeding device 16 is connected with a spiral rod 18 in internal rotation, the other side of the spiral feeder 16 close to the top is communicated with a discharge pipe 19, and one end of the discharge pipe 19 far away from the spiral feeder 16 penetrates through the inside of the electrolytic tank 1 and extends to the outside;
a communicating opening 20 is formed in one side, close to the lower part of a discharge pipe 19, of the spiral feeder 16, the communicating opening 20 is a net-shaped opening, the top of the communicating opening 20 is higher than the liquid level of the electrolytic tank 2, when metal is deposited to the bottom of the electrolytic tank 2, the metal flows towards a feed opening 17 of the spiral feeder 16 through the inclined electrolytic tank 2, when the metal enters the inside of the spiral feeder 16, a screw rod 18 drives the metal and electrolyte to move upwards, when the electrolyte rises to the communicating opening 20, the metal flows out through the communicating opening 20, meanwhile, the metal is filtered through the net-shaped communicating opening 20, so that the metal continues to move upwards, and then the metal is discharged through the discharge pipe 19, and the separated metal is conveniently taken out of the electrolytic tank 2;
the inside that the glassware 16 was gone up to the spiral is run through to the top of hob 18 extends to the outside, the top of hob 18 is fixed with first drive wheel 21, first drive wheel 21 passes through drive belt 23 with second drive wheel 22 and constitutes transmission structure, when dwang 5 rotates, dwang 5 drives second drive wheel 22 and rotates, and second drive wheel 22 drives first drive wheel 21 through drive belt 23 and rotates in step, makes first drive wheel 21 drive hob 18 rotate, makes hob 18 drive the metal and removes, is convenient for make dwang 5 pivoted drive the metal simultaneously and remove through drive belt 23, the outside that dwang 5 corresponds first drive wheel 21 position is fixed with second drive wheel 22, first drive wheel 21 and second drive wheel 22 overlap has drive belt 23, drive belt 23 is connected with first drive wheel 21, the meshing of second drive wheel 22, the top of sealed lid 3 is rotated and is connected with connecting rod 24, a fifth gear 25 is fixed on one side of the connecting rod 24 close to the first gear 7, and the fifth gear 25 is meshed with the first gear 7;
a sixth gear 26 is fixed at one end of the connecting rod 24, which is far away from the fifth gear 25, a second lead screw base 27 is fixed at the bottom of the anode rod 4, a second reciprocating lead screw 28 is rotatably connected to one side of the top of the second lead screw base 27, the top of the second reciprocating lead screw 28 extends to the outside through the inside of the sealing cover 3, a seventh gear 29 is fixed at the top of the second reciprocating lead screw 28, the seventh gear 29 is meshed with the sixth gear 26, a brush holder 30 is sleeved on the anode rod 4, one side of the brush holder 30 is in threaded connection with the second reciprocating lead screw 28, and a piston rod 31 is fixed at the top of one side of the brush holder 30, which is far away from the second reciprocating lead screw 28;
the top of the piston rod 31 penetrates through the inside of the sealing cover 3 and extends to the top, the top of the sealing cover 3, which is close to the piston rod 31, is provided with a piston cylinder 32, the top of the piston rod 31 is positioned inside the piston cylinder 32, the top of the piston rod 31 is fixedly provided with a piston 33, one side of the piston cylinder 32, which is close to the bottom, is communicated with the electrolytic cell 2 through a first exhaust pipe 34, the inside of the first exhaust pipe 34 is provided with a first check valve 35, the first check valve 35 and a second check valve 37 are used for one-way circulation from the electrolytic cell 2 to the piston cylinder 32, and one side of the piston cylinder 32, which is close to the top, is communicated with;
a second one-way valve 37 is installed inside the second exhaust pipe 36, a gas collection tank 38 is installed at the top of the sealing cover 3, the other side, close to the bottom, of the piston cylinder 32 is communicated with the gas collection tank 38 through a first exhaust pipe 39, a third one-way valve 40 is installed inside the first exhaust pipe 39, the third one-way valve 40 and a fourth one-way valve 42 enable one-way flow from the piston cylinder 32 to the gas collection tank 38, the other side, close to the top, of the piston cylinder 32 is communicated with the gas collection tank 38 through a second exhaust pipe 41, and the fourth one-way valve 42 is installed inside the second exhaust pipe 41;
the piston 33 is made of rubber material, the outer diameter of the piston 33 is equal to the inner diameter of the piston cylinder 32, when the bristle holder 30 moves downwards, the bristle holder 30 drives the piston 33 to move downwards through the piston rod 31, the interior of the piston cylinder 32 above the piston 33 is in a negative pressure state, the second check valve 37 is opened, chlorine in the electrolytic bath 2 is pumped into the interior of the piston cylinder 32 through the second air suction pipe 36, meanwhile, the interior of the piston cylinder 32 below the piston 33 is in a high pressure state, the third check valve 40 is opened, chlorine is pumped into the interior of the air collection box 38 through the first air suction pipe 39, when the bristle holder 30 moves upwards, the bristle holder 30 drives the piston 33 to move upwards, the interior of the piston cylinder 32 below the piston 33 is in a negative pressure state, the first check valve 35 is opened, chlorine is pumped into the interior of the piston cylinder 32 through the first air suction pipe 34, meanwhile, the interior of the piston cylinder 32, the fourth check valve 42 is opened, and chlorine is pressed into the gas collecting box 38 through the second exhaust pipe 41, so that the bristle holder 30 moves up and down, when chlorine on the surface of the anode rod 4 is brushed down, the chlorine in the electrolytic bath 2 can be continuously pumped into the gas collecting box 38 through the piston cylinder 32, the chlorine is prevented from reacting with the precipitated metal, the bristle holder 30 is annular, the inner diameter of the bristle holder 30 is larger than the outer diameter of the anode rod 4, and bristles 43 are fixed on the inner side of the bristle holder 30.
The working principle is as follows: when the fused salt electrolysis device for preparing rare earth metals is used, firstly, the motor 8 drives the rotating rod 5 to rotate through the second gear 9, the rotating rod 5 drives the cathode rod 6 to rotate, the cathode rod 6 adjusts the distance between each side surface and the anode rod 4 through rotation, so that the metal precipitated on the surface of the cathode rod 6 is more uniform, the precipitation efficiency of the rare earth metals can be effectively improved, meanwhile, the cathode rod 6 drives the first reciprocating screw rod 11 to revolve through the first screw rod base 10, the first reciprocating screw rod 11 drives the third gear 12 and the fourth gear 13 to move relatively, the fourth gear 13 drives the first reciprocating screw rod 11 to rotate through the third gear 12, the first reciprocating screw rod 11 drives the scraper frame 14 and the scraper 15 to move up and down, the metal on the surface of the cathode rod 6 is scraped, and the precipitation efficiency of the metal can be further improved;
when the rotating rod 5 rotates, the rotating rod 5 drives the second driving wheel 22 to rotate, the second driving wheel 22 drives the first driving wheel 21 to synchronously rotate through the driving belt 23, so that the first driving wheel 21 drives the spiral rod 18 to rotate, after the metal is precipitated at the bottom of the electrolytic bath 2, the metal flows towards the feed inlet 17 of the spiral feeder 16 through the inclined electrolytic bath 2, after the metal enters the inside of the spiral feeder 16, the spiral rod 18 drives the metal and the electrolyte to move upwards, when the electrolyte rises to the communication port 20, the metal flows out through the communication port 20, and is filtered through the reticular communication port 20, so that the metal continues to move upwards and is discharged through the discharge pipe 19, and the separated metal can be taken out from the electrolytic bath 2 conveniently while the metal is scraped by the scraper 15;
when the first gear 7 rotates, the first gear 7 drives the fifth gear 25 to rotate through meshing, the fifth gear 25 drives the sixth gear 26 to rotate through the connecting rod 24, so that the sixth gear 26 drives the seventh gear 29 to rotate through meshing, the seventh gear 29 drives the second reciprocating screw 28 to rotate, the second reciprocating screw 28 drives the brush holder 30 to move up and down, and chlorine bubbles attached to the surface of the anode rod 4 can be brushed down while the cathode rod 6 rotates to improve the metal precipitation efficiency;
when the bristle holder 30 moves downwards, the bristle holder 30 drives the piston 33 to move downwards through the piston rod 31, the interior of the piston cylinder 32 above the piston 33 is in a negative pressure state, the second check valve 37 is opened, chlorine in the electrolytic bath 2 is pumped into the interior of the piston cylinder 32 through the second exhaust pipe 36, meanwhile, the interior of the piston cylinder 32 below the piston 33 is in a high pressure state, the third check valve 40 is opened, chlorine is pumped into the interior of the gas collection box 38 through the first exhaust pipe 39, when the bristle holder 30 moves upwards, the bristle holder 30 drives the piston 33 to move upwards, the interior of the piston cylinder 32 below the piston 33 is in a negative pressure state, the first check valve 35 is opened, chlorine is pumped into the interior of the piston cylinder 32 through the first exhaust pipe 34, the interior of the piston cylinder 32 above the piston 33 is in a high pressure state, the fourth check valve 42 is opened, and chlorine is pumped into the interior of the gas collection box 38 through, the brush bristle holder 30 is moved up and down, and when chlorine on the surface of the anode rod 4 is brushed down, the chlorine inside the electrolytic bath 2 can be continuously pumped into the gas collecting box 38 through the piston cylinder 32, so that the chlorine is prevented from reacting with the separated metal.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A molten salt electrolysis device for rare earth metal preparation, comprising an electrolysis chamber (1), characterized in that: an electrolytic tank (2) is arranged in the electrolytic tank (1), a sealing cover (3) is arranged at the top of the electrolytic tank (1) close to the electrolytic tank (2), an anode rod (4) is connected with one side of the sealing cover (3) close to the electrolytic tank (2) in a threaded manner,
the other side, close to the electrolytic cell (2), of the sealing cover (3) is rotatably connected with a rotating rod (5), a cathode rod (6) is fixed at the bottom of the rotating rod (5), a first gear (7) is fixed at the top, close to the sealing cover (3), of the rotating rod (5), a motor (8) is installed at the top, close to the first gear (7), of the sealing cover (3), a second gear (9) is fixed at the shaft end of the motor (8), the second gear (9) is meshed with the first gear (7), a first lead screw base (10) is fixedly connected at the bottom of the cathode rod (6), first reciprocating lead screws (11) are rotatably connected at the tops of two sides of the first lead screw base (10), and third gears (12) are fixed at the tops of the first reciprocating lead screws (11);
a fourth gear (13) is fixed at the bottom of the sealing cover (3) between the third gears (12), a scraper frame (14) is sleeved on the cathode rod (6), two sides of the scraper frame (14) are in threaded connection with the first reciprocating screw rod (11), a scraper (15) is fixed on the inner side of the scraper frame (14), a spiral feeder (16) is installed inside one side, close to the cathode rod (6), of the electrolytic cell (2), a feed inlet (17) is formed in one side, close to the bottom, of the spiral feeder (16), a screw rod (18) is rotatably connected inside the spiral feeder (16), a discharge pipe (19) is communicated with the other side, close to the top, of the spiral feeder (16), and one end, far away from the spiral feeder (16), of the discharge pipe (19) penetrates through the inside of the electrolytic cell (1) and extends to the outside;
a communication port (20) is formed in one side, close to the lower side of the discharge pipe (19), of the spiral feeder (16), the top of the spiral rod (18) penetrates through the inside of the spiral feeder (16) and extends to the outside, a first driving wheel (21) is fixed to the top of the spiral rod (18), a second driving wheel (22) is fixed to the outside, corresponding to the position of the first driving wheel (21), of the rotating rod (5), a driving belt (23) is sleeved on the first driving wheel (21) and the second driving wheel (22), the driving belt (23) is meshed with the first driving wheel (21) and the second driving wheel (22), a connecting rod (24) is rotatably connected to the top of the sealing cover (3), a fifth gear (25) is fixed to one side, close to the first gear (7), of the connecting rod (24), and the fifth gear (25) is meshed with the first gear (7);
a sixth gear (26) is fixed at one end, away from the fifth gear (25), of the connecting rod (24), a second screw rod base (27) is fixed at the bottom of the anode rod (4), a second reciprocating screw rod (28) is rotatably connected to one side of the top of the second screw rod base (27), the top of the second reciprocating screw rod (28) penetrates through the inside of the sealing cover (3) and extends to the outside, a seventh gear (29) is fixed at the top of the second reciprocating screw rod (28), the seventh gear (29) is meshed with the sixth gear (26), a brush holder (30) is sleeved on the anode rod (4), one side of the brush holder (30) is in threaded connection with the second reciprocating screw rod (28), and a piston rod (31) is fixed at the top of one side, away from the second reciprocating screw rod (28), of the brush holder (30);
the top of the piston rod (31) penetrates through the inside of the sealing cover (3) and extends to the top, a piston cylinder (32) is installed at the top, close to the piston rod (31), of the sealing cover (3), the top of the piston rod (31) is located inside the piston cylinder (32), a piston (33) is fixed at the top of the piston rod (31), one side, close to the bottom, of the piston cylinder (32) is communicated with the electrolytic cell (2) through a first air suction pipe (34), a first one-way valve (35) is installed inside the first air suction pipe (34), and one side, close to the top, of the piston cylinder (32) is communicated with the electrolytic cell (2) through a second air suction pipe (36);
the internally mounted of second exhaust tube (36) has second check valve (37), gas collection box (38) are installed at the top of sealed lid (3), piston cylinder (32) are close to the bottom opposite side and are linked together through first blast pipe (39) and gas collection box (38), the internally mounted of first blast pipe (39) has third check valve (40), piston cylinder (32) are close to the top opposite side and are linked together through second blast pipe (41) and gas collection box (38), the internally mounted of second blast pipe (41) has fourth check valve (42).
2. A molten salt electrolysis apparatus for rare earth metal preparation according to claim 1, characterised in that: the scraper (15) is annular, and the scraper (15) is fixed on the inner side of the scraper frame (14) through welding.
3. A molten salt electrolysis apparatus for rare earth metal preparation according to claim 1, characterised in that: the communicating port (20) is a net-shaped port, and the top of the communicating port (20) is higher than the liquid level of the electrolytic tank (2).
4. A molten salt electrolysis apparatus for rare earth metal preparation according to claim 1, characterised in that: the first transmission wheel (21) and the second transmission wheel (22) form a transmission structure through a transmission belt (23).
5. A molten salt electrolysis apparatus for rare earth metal preparation according to claim 1, characterised in that: the bristle holder (30) is annular, the inner diameter of the bristle holder (30) is larger than the outer diameter of the anode rod (4), and bristles (43) are fixed on the inner side of the bristle holder (30).
6. A molten salt electrolysis apparatus for rare earth metal preparation according to claim 1, characterised in that: the piston (33) is made of rubber materials, and the outer diameter of the piston (33) is equal to the inner diameter of the piston cylinder (32).
7. A molten salt electrolysis apparatus for rare earth metal preparation according to claim 1, characterised in that: the first check valve (35) and the second check valve (37) are communicated in a one-way mode from the electrolytic bath (2) to the piston cylinder (32).
8. A molten salt electrolysis apparatus for rare earth metal preparation according to claim 1, characterised in that: the third check valve (40) and the fourth check valve (42) are communicated with the gas collecting box (38) from the piston cylinder (32) in a one-way mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011207117.9A CN112301380A (en) | 2020-11-03 | 2020-11-03 | Molten salt electrolysis device for preparing rare earth metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011207117.9A CN112301380A (en) | 2020-11-03 | 2020-11-03 | Molten salt electrolysis device for preparing rare earth metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112301380A true CN112301380A (en) | 2021-02-02 |
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ID=74334100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011207117.9A Withdrawn CN112301380A (en) | 2020-11-03 | 2020-11-03 | Molten salt electrolysis device for preparing rare earth metal |
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| Country | Link |
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| CN (1) | CN112301380A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113026058A (en) * | 2021-03-02 | 2021-06-25 | 赣州市恒源科技股份有限公司 | Automatic equipment for rare earth metal electrolysis |
| CN114277403A (en) * | 2021-12-22 | 2022-04-05 | 曹文浩 | Chemical electrolytic tank |
-
2020
- 2020-11-03 CN CN202011207117.9A patent/CN112301380A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113026058A (en) * | 2021-03-02 | 2021-06-25 | 赣州市恒源科技股份有限公司 | Automatic equipment for rare earth metal electrolysis |
| CN114277403A (en) * | 2021-12-22 | 2022-04-05 | 曹文浩 | Chemical electrolytic tank |
| CN114277403B (en) * | 2021-12-22 | 2024-04-19 | 兰溪自立环保科技有限公司 | Electrolytic tank for chemical industry |
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Application publication date: 20210202 |
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