CN215209650U

CN215209650U - Rare earth metal electrolytic bath

Info

Publication number: CN215209650U
Application number: CN202121343800.5U
Authority: CN
Inventors: 陈芳
Original assignee: Yawei New Materials Xuzhou Co ltd
Current assignee: Yawei New Materials Xuzhou Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-17
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a rare earth metal electrolysis trough belongs to rare earth metal electrolysis technical field, including casing, top cap and filter head, casing inside wall fixedly connected with firebrick layer, firebrick layer inside wall fixedly connected with graphite powder layer, graphite powder in situ side wall fixedly connected with electrolysis trough, electrolysis trough bottom fixedly connected with crucible, the electrolysis trough opening part is provided with the top cap, top cap internally mounted has the motor, motor power output end fixedly connected with transfer line, transfer line fixed surface is connected with the (mixing) shaft, fixed surface is connected with the blast pipe on the top cap. The utility model can stir the rare earth fused salt through the stirring shaft, so that the rare earth fused salt is sufficiently electrolyzed, and the rare earth electrolysis output is increased; accessible filter head filters the waste gas of following the electrolysis trough internal discharge, prevents that waste gas from causing the pollution to the environment, prevents that the particulate impurity in the waste gas from causing the damage to external exhaust treatment device.

Description

Rare earth metal electrolytic bath

Technical Field

The utility model relates to a rare earth metal electrolysis technical field especially relates to a rare earth metal electrolysis trough.

Background

The electrolysis of the rare earth molten salt is one of the important methods for preparing rare earth metals and alloys thereof, the upper opening of an electrolytic cell for industrially producing the rare earth metals at present is open, the cathode and the anode are arranged in parallel and vertically on the cylindrical surface, and the polar distance is 15-20 cm. The structure leads to high voltage, low production efficiency, serious environmental pollution and large technological parameter fluctuation of the prior rare earth metal electrolytic cell, and seriously hinders the further development of the rare earth electrolysis technology. At present, the energy consumption of the metal per ton is as high as about 10000kWh, the energy utilization rate is low, most of energy is consumed on the polar distance voltage drop, and a large amount of energy is dissipated outwards in a thermal form, and researches show that the open radiation heat dissipation of the rare earth molten salt electrolytic cell body with the existing structure accounts for 44.5% of the total heat expenditure. And when the voltage of the cell is too high, the rare earth fluoride is seriously decomposed when the concentration of the oxide in the electrolyte is insufficient, and fluorine-containing gas is generated and directly discharged to pollute the environment. Therefore, the existing problems of fully electrolyzing the rare earth molten salt, controlling the smoke emission and the like are solved, and the key for realizing the rare earth electrolysis industry and the technical development thereof is realized.

Patent No. CN200952043Y discloses a liquid cathode electrolytic cell for producing rare earth metals and alloys thereof by electrolysis, which is applied to the electrolysis production of various rare earth metals and alloys thereof in a chloride system or a fluoride system and belongs to the technical field of molten salt electrolysis. Is characterized in that: the insulating material is arranged between the graphite linings, the cathode is led into the electrolytic cell chamber from the side part or the bottom part of the electrolytic cell body and is connected with a receiver arranged at the bottom part of the electrolytic cell, liquid metal is filled in the receiver, and at least one graphite anode is arranged at the upper part of the electrolytic cell and is connected with the lifting device. The utility model discloses the cell body more has the superiority in the homogeneity of operation in-process molten salt system temperature, mobility and the consumption that reduces former auxiliary material, and what be more outstanding is that cell body voltage has obvious reduction, can satisfy and reduce the energy consumption, improves current efficiency's purpose, also adapts to the demand of the large-scale development of tombarthite electrolysis trough.

The rare earth metal electrolytic cells of the prior art have the following disadvantages: 1. the rare earth molten salt is lack of stirring, the electrolysis of the rare earth molten salt is insufficient, and the electrolysis output of the rare earth is insufficient; 2. the method has the advantages that smoke emission is not filtered, the environment is easily polluted, or external smoke treatment equipment is easily damaged, and therefore the rare earth metal electrolytic cell is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a rare earth metal electrolytic cell, which can stir the rare earth fused salt by a stirring shaft, so that the rare earth fused salt is electrolyzed sufficiently and the rare earth electrolysis output is increased; accessible filter head filters the waste gas of following the electrolysis trough internal discharge, prevents that waste gas from causing the pollution to the environment, prevents that the particulate impurity in the waste gas from causing the damage to external exhaust treatment device.

The utility model provides a specific technical scheme as follows:

the utility model provides a rare earth metal electrolytic tank, which comprises a shell, a top cover and a filter head, wherein the inner side wall of the shell is fixedly connected with a refractory brick layer, the inner side wall of the refractory brick layer is fixedly connected with a graphite powder layer, the inner side wall of the graphite powder layer is fixedly connected with an electrolytic tank, the bottom of the electrolytic tank is fixedly connected with a crucible, the opening part of the electrolytic tank is provided with the top cover, the middle section of the bottom of the top cover is fixedly connected with an anode, the bottom of the top cover is fixedly connected with a cathode, the top cover is internally provided with a motor and two groups of motors, the power output end of the motor is fixedly connected with a transmission rod, the surface of the transmission rod is fixedly connected with a stirring shaft and the stirring shaft is a plurality of groups, the upper surface of the top cover is fixedly connected with an exhaust pipe, one end of the exhaust pipe extends into the electrolytic tank, the right side of the exhaust pipe is provided with a thread a, the right side of the thread a is fixedly connected with a sealing gasket a, the left side of the filter head is provided with a thread b, and the left side of the thread b is fixedly connected with a sealing gasket b.

Optionally, the anode, the cathode and the motor are all electrically connected with an external power supply.

Optionally, the thread a is engaged with the thread b, and the exhaust pipe is movably connected with the filter head through the thread a and the thread b.

Optionally, the filter head inside wall fixedly connected with filters the cotton layer, filter cotton layer right side fixedly connected with activated carbon layer.

Optionally, sealed pad a and the laminating of filter head inside wall mutually, sealed pad b and the laminating of blast pipe inside wall mutually.

The utility model has the advantages as follows:

the embodiment of the utility model provides a rare earth metal electrolysis trough:

1. the top cover is opened, the rare earth fused salt is introduced into the electrolytic cell, the anode, the cathode and the motor are electrically connected with an external power supply, the anode and the cathode electrolyze the rare earth fused salt, the motor is electrified to rotate to drive the transmission rod to rotate, the transmission rod rotates to drive the stirring shaft to rotate, and the stirring shaft rotates to stir the rare earth fused salt, so that the rare earth fused salt can be fully contacted with the anode and the cathode, the rare earth fused salt is sufficiently electrolyzed, and the electrolytic output of the rare earth fused salt is increased.

2. Tombarthite fused salt electrolysis can produce waste gas, waste gas passes through the blast pipe and gets into the filter head, filter the large granule impurity in the cotton layer filtration waste gas, little granule impurity in the active carbon layer absorption waste gas, prevent that waste gas from causing the pollution to the environment, prevent that the granule impurity in the waste gas from causing the damage to external exhaust treatment device, screw thread an and screw thread b agree with mutually, the blast pipe passes through screw thread an and screw thread b and filter head swing joint, the filter head installation is dismantled conveniently, be convenient for change filter cotton layer and active carbon layer, prevent the filter head jam, sealed pad a is laminated mutually with the first inboard wall of filter, sealed pad b is laminated mutually with the inboard wall of blast pipe, guarantee blast pipe and the gas tightness of filter head junction, prevent that waste gas from overflowing and scattering, increase the whole practicality of electrolysis trough.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic view of the overall structure of a rare earth metal electrolytic cell according to an embodiment of the present invention;

FIG. 2 is a partially enlarged schematic structural view of a rare earth metal electrolytic cell shown in FIG. 1 according to an embodiment of the present invention.

In the figure: 1. a housing; 2. a layer of graphite powder; 3. a refractory brick layer; 4. an anode; 5. a cathode; 6. a top cover; 7. an exhaust pipe; 8. a motor; 9. a transmission rod; 10. a stirring shaft; 11. an electrolytic cell; 12. a crucible; 13. a gasket b; 14. a thread a; 15. a filter cotton layer; 16. an activated carbon layer; 17. a gasket a; 18. a thread b; 19. a filter head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A rare earth metal electrolytic cell according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 2.

Referring to fig. 1-2, a rare earth metal electrolytic cell provided by an embodiment of the present invention includes a casing 1, a top cover 6 and a filter 19, wherein a refractory brick layer 3 is fixedly connected to an inner side wall of the casing 1, a graphite powder layer 2 is fixedly connected to an inner side wall of the refractory brick layer 3, an electrolytic cell 11 is fixedly connected to an inner side wall of the graphite powder layer 2, a crucible 12 is fixedly connected to a bottom of the electrolytic cell 11, the top cover 6 is disposed at an opening of the electrolytic cell 11, an anode 4 is fixedly connected to a middle section of a bottom of the top cover 6, a cathode 5 is fixedly connected to a bottom of the top cover 6, a motor 8 is installed inside the top cover 6 and two sets of motors 8 are provided, a transmission rod 9 is fixedly connected to a power output end of the motor 8, a stirring shaft 10 is fixedly connected to a surface of the transmission rod 9 and the stirring shaft 10 is a plurality of sets, an exhaust pipe 7 is fixedly connected to an upper surface of the top cover 6 and one end of the exhaust pipe 7 extends into the electrolytic cell 11, the right side of the exhaust pipe 7 is provided with a thread a14, the right side of the thread a14 is fixedly connected with a sealing gasket a17, the left side of the filter head 19 is provided with a thread b18, and the left side of the thread b18 is fixedly connected with a sealing gasket b 13.

Illustratively, the top cover 6 is opened, rare earth molten salt is introduced into the electrolytic cell 11, the anode 4, the cathode 5 and the motor 8 are electrically connected with an external power supply, the anode 4 and the cathode 5 electrolyze the rare earth molten salt, the motor 8 is electrified to rotate to drive the transmission rod 9 to rotate, the transmission rod 9 rotates to drive the stirring shaft 10 to rotate, the stirring shaft 10 rotates to stir the rare earth molten salt, so that the rare earth molten salt can be in full contact with the anode 4 and the cathode 5, the rare earth molten salt can be sufficiently electrolyzed, the rare earth molten salt electrolysis output is increased, the rare earth molten salt electrolysis can generate waste gas, the waste gas enters the filter head 19 through the exhaust pipe 7, the filter cotton layer 15 filters large particle impurities in the waste gas, the active carbon layer 16 adsorbs small particle impurities in the waste gas, the waste gas is prevented from polluting the environment, the particle impurities in the waste gas are prevented from damaging an external waste gas treatment device, the threads a14 and the threads b18 are matched, blast pipe 7 passes through screw thread a14 and screw thread b18 and filter head 19 swing joint, filter head 19 installation is dismantled conveniently, be convenient for change filter pulp layer 15 and activated carbon layer 16, prevent that filter head 19 from blockking up, sealed pad a17 and the laminating of filter head 19 inboard wall mutually, sealed pad b13 and the laminating of blast pipe 7 inboard wall mutually, guarantee the gas tightness of blast pipe 7 and filter head 19 junction, prevent that waste gas from overflowing and scattering, increase the whole practicality of electrolysis trough 11.

Referring to fig. 1, the anode 4, the cathode 5 and the motor 8 are all electrically connected to an external power source.

In the example, the anode 4, the cathode 5 and the motor 8 are all electrically connected with an external power supply, so that the power supply is conveniently connected, a power system is not required, the operation is convenient, and the manufacturing cost is saved.

Referring to fig. 2, the screw thread a14 and the screw thread b18 are engaged, and the exhaust pipe 7 is movably connected with the filter head 19 through the screw thread a14 and the screw thread b 18.

Illustratively, the screw thread a14 is matched with the screw thread b18, the exhaust pipe 7 is movably connected with the filter head 19 through the screw thread a14 and the screw thread b18, the filter head 19 is convenient to mount and dismount, the filter cotton layer 15 and the activated carbon layer 16 are convenient to replace, and the filter head 19 is prevented from being blocked.

Referring to fig. 2, a filter cotton layer 15 is fixedly connected to the inner side wall of the filter head 19, and an activated carbon layer 16 is fixedly connected to the right side of the filter cotton layer 15.

By way of example, the filter cotton layer 15 filters large particle impurities in the exhaust gas, and the activated carbon layer 16 adsorbs small particle impurities in the exhaust gas, thereby preventing the exhaust gas from polluting the environment and preventing particle impurities in the exhaust gas from damaging the external exhaust gas treatment device.

Referring to fig. 1 and 2, the gasket a17 is attached to the inner wall of the filter head 19, and the gasket b13 is attached to the inner wall of the exhaust pipe 7.

In the example, the sealing gasket a17 is attached to the inner side wall of the filter head 19, and the sealing gasket b13 is attached to the inner side wall of the exhaust pipe 7, so that the air tightness of the joint of the exhaust pipe 7 and the filter head 19 is guaranteed, and the exhaust gas is prevented from overflowing.

When the rare earth fused salt electrolysis device is used, the top cover 6 is opened, rare earth fused salt is introduced into the electrolytic cell 11, the anode 4, the cathode 5 and the motor 8 are electrically connected with an external power supply, the anode 4 and the cathode 5 electrolyze the rare earth fused salt, the motor 8 is electrified to rotate to drive the transmission rod 9 to rotate, the transmission rod 9 rotates to drive the stirring shaft 10 to rotate, the stirring shaft 10 rotates to stir the rare earth fused salt, so that the rare earth fused salt can be fully contacted with the anode 4 and the cathode 5, the rare earth fused salt electrolysis is sufficient, the rare earth fused salt electrolysis output is increased, the rare earth fused salt electrolysis can generate waste gas, the waste gas enters the filter head 19 through the exhaust pipe 7, the filter cotton layer 15 filters large particle impurities in the waste gas, the active carbon layer 16 adsorbs small particle impurities in the waste gas, the waste gas is prevented from polluting the environment, the particle impurities in the waste gas are prevented from damaging an external waste gas treatment device, the threads a14 and the threads b18 are combined, blast pipe 7 passes through screw thread a14 and screw thread b18 and filter head 19 swing joint, filter head 19 installation is dismantled conveniently, be convenient for change filter pulp layer 15 and activated carbon layer 16, prevent that filter head 19 from blockking up, sealed pad a17 and the laminating of filter head 19 inboard wall mutually, sealed pad b13 and the laminating of blast pipe 7 inboard wall mutually, guarantee the gas tightness of blast pipe 7 and filter head 19 junction, prevent that waste gas from overflowing and scattering, increase the whole practicality of electrolysis trough 11.

The utility model relates to a rare earth metal electrolytic cell, which comprises a shell 1; 2. a layer of graphite powder; 3. a refractory brick layer; 4. an anode; 5. a cathode; 6. a top cover; 7. an exhaust pipe; 8. a motor; 9. a transmission rod; 10. a stirring shaft; 11. an electrolytic cell; 12. a crucible; 13. a gasket b; 14. a thread a; 15. a filter cotton layer; 16. an activated carbon layer; 17. a gasket a; 18. a thread b; 19. the filter head, components are all standard or known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through routine experimentation.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A rare earth metal electrolytic tank comprises a shell (1), a top cover (6) and a filter head (19), and is characterized in that the inner side wall of the shell (1) is fixedly connected with a refractory brick layer (3), the inner side wall of the refractory brick layer (3) is fixedly connected with a graphite powder layer (2), the inner side wall of the graphite powder layer (2) is fixedly connected with an electrolytic tank (11), the bottom of the electrolytic tank (11) is fixedly connected with a crucible (12), the opening of the electrolytic tank (11) is provided with the top cover (6), the middle section of the bottom of the top cover (6) is fixedly connected with an anode (4), the bottom of the top cover (6) is fixedly connected with a cathode (5), the top cover (6) is internally provided with motors (8) and the motors (8) are two groups, the power output ends of the motors (8) are fixedly connected with a transmission rod (9), the surface of the transmission rod (9) is fixedly connected with a stirring shaft (10) and the stirring shaft (10) is a plurality of groups, fixed surface is connected with in blast pipe (7) and blast pipe (7) one end extend to electrolysis trough (11) on top cap (6), screw thread a (14) have been seted up on blast pipe (7) right side, screw thread a (14) right side fixedly connected with seals pad a (17), screw thread b (18) have been seted up on filter head (19) left side, screw thread b (18) left side fixedly connected with seals pad b (13).

2. A rare earth metal electrolysis cell according to claim 1, wherein the anode (4), cathode (5) and motor (8) are all electrically connected to an external power source.

3. A rare earth metal electrolyzer as claimed in claim 1, characterized in that the threads a (14) and b (18) are engaged, and the degassing conduit (7) is movably connected to the filtering head (19) by means of the threads a (14) and b (18).

4. The rare earth metal electrolyzer of claim 1, characterized in that the inner side wall of the filter head (19) is fixedly connected with a filter cotton layer (15), and the right side of the filter cotton layer (15) is fixedly connected with an activated carbon layer (16).

5. A rare earth metal electrolysis cell according to claim 1, wherein the gasket a (17) is attached to the inner side wall of the filter head (19), and the gasket b (13) is attached to the inner side wall of the exhaust pipe (7).