CN112481659A - Device and method for strengthening electrolyte movement in electrolytic cell in non-contact manner - Google Patents
Device and method for strengthening electrolyte movement in electrolytic cell in non-contact manner Download PDFInfo
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- CN112481659A CN112481659A CN202011346755.9A CN202011346755A CN112481659A CN 112481659 A CN112481659 A CN 112481659A CN 202011346755 A CN202011346755 A CN 202011346755A CN 112481659 A CN112481659 A CN 112481659A
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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
- C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts
Abstract
The invention discloses a device and a method for strengthening the movement of electrolyte in an electrolytic cell in a non-contact way, wherein the device comprises the following components: the coil winding device comprises an annular heat insulation cavity, a plurality of winding coils and a direct-current power supply; wherein, the annular heat insulation cavity can be sleeved on the periphery of the electrolytic cell; the plurality of winding coils are axially and vertically arranged in the annular heat insulation cavity and surround the electrolytic cell, are independent from each other and are respectively electrically connected with the direct current power supply, and can generate a direct current magnetic field for strengthening the movement of electrolyte in the electrolytic cell after the direct current is connected. The method is characterized in that the current direction passing through the electrolyte in the upper-inserted cathode rare earth electrolytic cell is converged from the periphery to the central cathode, and under the condition of an external magnetic field, the electrolyte is influenced by the Lorentz force to obtain additional motion power, so that the motion capability of the electrolyte is enhanced. The device for electromagnetically strengthening the movement of the electrolyte in the upper-inserted cathode rare earth electrolytic cell has a simple integral structure and is convenient to operate.
Description
Technical Field
The invention relates to the field of rare earth electrolytic metallurgy, in particular to a device and a method for strengthening electrolyte movement in an electrolytic cell in a non-contact manner, which are suitable for a top-inserted cathode rare earth electrolytic cell.
Background
At present, the normal working temperature of the upper-inserted cathode rare earth electrolytic cell is generally about 700 to 1000 ℃ (different molten salt systems cause different electrolysis process temperatures). During this temperature interval, the electrolyte is in a molten state and dissociates into freely mobile anions and cations. The externally added raw material powder may be dissolved in a high-temperature electrolyte, which serves as both a carrier for dissolution of the raw material and a carrier for passage of electric current.
At present, the movement power of the electrolyte in the rare earth electrolytic cell mainly comes from bubble agitation generated by an anode. However, the power provided by the bubbles to agitate the electrolyte is limited and the bubbles are present only in the anode region, and the electrolyte below the anode in the cell is substantially unaffected by the movement of the bubbles and is in a substantially steady laminar state, so that undissolved material is easily deposited at the bottom of the cell. In order to reduce the adverse effect caused by the bottom sinking of the raw materials, operators need to use a stirring rod to intermittently and manually stir the electrolyte.
However, the existing method of intermittently stirring the electrolyte by the stirring rod by the operator has the problems of poor stirring uniformity and serious adverse effects on the safety and health of the operator under high temperature and irritant gas environment.
Disclosure of Invention
Based on the problems in the prior art, the invention provides a device and a method for strengthening the movement of electrolyte in an electrolytic cell, which can solve the problems that the prior art adopts operators to intermittently and manually stir the electrolyte in the rare earth electrolytic cell, so that the stirring is not uniform, and the safety and health of the operators are seriously and adversely affected in high-temperature and irritant gas environments.
The purpose of the invention is realized by the following technical scheme:
the embodiment of the invention provides a device for strengthening the movement of electrolyte in an electrolytic cell in a non-contact way, which comprises:
the coil winding device comprises an annular heat insulation cavity, a plurality of winding coils and a direct-current power supply; wherein the content of the first and second substances,
the annular heat insulation cavity can be sleeved on the periphery of the electrolytic cell;
the plurality of winding coils are axially and vertically arranged in the annular heat insulation cavity and surround the electrolytic cell, are independent from each other and are respectively electrically connected with the direct current power supply, and can generate a direct current magnetic field for strengthening the movement of electrolyte in the electrolytic cell after the direct current is connected.
The embodiment of the invention also provides a method for strengthening the movement of the electrolyte in the electrolytic cell, and the device for strengthening the movement of the electrolyte in the electrolytic cell comprises the following steps:
the device for strengthening the movement of the electrolyte in the electrolytic cell is arranged outside the electrolytic cell;
and D, connecting direct current to each wound coil of the device for strengthening the movement of the electrolyte in the electrolytic cell, generating a direct current magnetic field in the electrolytic cell, enabling the electrolyte as the magnetic fluid to generate Lorentz force under the action of the direct current magnetic field, enabling the electrolyte to obtain tangential movement speed by the Lorentz force, and simultaneously superposing anode bubbles to stir the rising buoyancy of the electrolyte to strengthen the movement of the electrolyte.
According to the technical scheme provided by the invention, the device for strengthening the movement of the electrolyte in the electrolytic cell in a non-contact manner, which is provided by the embodiment of the invention, has the following beneficial effects: .
The annular heat insulation cavity with a plurality of built-in winding coils is arranged on the periphery of the electrolytic cell, direct current is conducted to the winding coils, and a direct current magnetic field is generated in the electrolytic cell, so that when the electrolytic cell works, current flows from anodes annularly arranged around to a cathode at the center of the cell, electrolyte can generate Lorentz force under the action of the magnetic field as a carrier through which the current passes, tangential movement speed is additionally obtained, and meanwhile, rising buoyancy of the electrolyte is stirred by superposed anode bubbles, and the purpose of strengthening the movement of the electrolyte is achieved. The device and the method can provide power in multiple directions for the electrolyte inserted into the cathode rare earth electrolytic cell in a non-contact manner, strengthen the full stirring of the electrolyte in the cell, avoid the waste of raw materials due to bottom sinking, can be started and stopped at any time, and conveniently strengthen the movement of the electrolyte intermittently or continuously. The problem that the existing rare earth electrolytic cell is stirred by operators intermittently and manually, so that the stirring is not uniform, and the safety and health of the operators are seriously affected in high-temperature and irritant gas environments is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced 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 based on the drawings without creative efforts.
FIG. 1 is a schematic structural view of an apparatus for enhancing movement of an electrolyte in an electrolytic cell according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a method of enhancing electrolyte movement in an electrolytic cell according to an embodiment of the present invention;
FIG. 3 is a schematic view of a method of enhancing electrolyte movement in an electrolytic cell according to another embodiment of the present invention;
FIG. 4 is a schematic structural view of an apparatus for enhancing movement of an electrolyte in an electrolytic cell according to another embodiment of the present invention;
FIG. 5 is a schematic view of a method of enhancing electrolyte movement in an electrolytic cell according to yet another embodiment of the present invention;
the part names corresponding to the marks in the figure are as follows: 1-an electrolytic cell; 2. an anode; 3. a cathode; 4-an electrolyte; 5-a heat insulation cavity; 6-a coil; 7-direct current power supply.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the specific contents 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 embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an apparatus for non-contact enhancing electrolyte movement in an electrolytic cell, including:
the coil winding device comprises an annular heat insulation cavity, a plurality of winding coils and a direct-current power supply; wherein the content of the first and second substances,
the annular heat insulation cavity can be sleeved on the periphery of the electrolytic cell;
the plurality of winding coils are axially and vertically arranged in the annular heat insulation cavity and surround the electrolytic cell, are independent from each other and are respectively electrically connected with the direct current power supply, and can generate a direct current magnetic field for strengthening the movement of electrolyte in the electrolytic cell after the direct current is connected.
In the device, each winding coil adopts a winding mode of multilayer close winding, and the enameled wires are wound on the cylindrical surface of the coil keel in a multilayer mode;
the winding direction of each winding coil meets the following requirements: if all the wound coils are simultaneously connected with direct current with the same direction, direct current magnetic fields with the same direction can be generated in all the areas of the electrolytic cell; if the direct current with different directions is conducted by the wound coils, direct current magnetic fields with opposite directions can be generated in a plurality of areas of the electrolytic cell.
In the device, the annular heat insulation cavity is an annular heat insulation cavity with a buckle. The buckle can make the annular heat insulation cavity open and close conveniently.
Referring to fig. 2, an embodiment of the present invention further provides a method for enhancing electrolyte movement in an electrolytic cell, which uses the above-mentioned apparatus for enhancing electrolyte movement in an electrolytic cell, including:
the device for strengthening the movement of the electrolyte in the electrolytic cell is arranged outside the electrolytic cell;
and (2) connecting direct current to a winding coil of the device for strengthening the movement of the electrolyte in the electrolytic cell, generating a direct current magnetic field in the electrolytic cell, enabling the electrolyte as the magnetic fluid to generate Lorentz force under the action of the direct current magnetic field, enabling the electrolyte to obtain tangential movement speed by the Lorentz force, and simultaneously superposing anode bubbles to stir the rising buoyancy of the electrolyte to strengthen the movement of the electrolyte.
In the method, if all the wound coils are simultaneously connected with direct current with the same direction, direct current magnetic fields with the same direction are generated in all the areas of the electrolytic cell;
if all the wound coils are simultaneously connected with direct current with the same direction, direct current magnetic fields with opposite directions are generated in a plurality of areas of the electrolytic bath.
The device can enhance the power of electrolyte movement in a non-contact manner, enhance the movement effect of the electrolyte in the upper-inserted cathode rare earth electrolytic cell, improve the electrolyte movement speed, and avoid the phenomenon of raw material bottom sinking, can be turned on and turned off at any time, intermittently or continuously stirs the electrolyte according to the requirements set by the process completely, has good stirring uniformity, and well solves the problem that the manual stirring causes adverse effects on the bodies of operators.
The embodiments of the present invention are described in further detail below.
Example 1:
in this example 1, an apparatus for non-contact strengthening of electrolyte movement in an electrolytic cell is provided, as shown in fig. 1, an anode 2 is arranged in a ring-shaped cylindrical shape inside a rare earth electrolytic cell 1, a cathode 3 is inserted in the middle, and an electrified electrolyte is provided between the anode and the cathode. An annular heat insulation cavity 5 is sleeved on the periphery of the electrolytic cell 1, and a winding coil 6 connected with a direct current power supply 7 is arranged in the annular heat insulation cavity 5. When the rare earth electrolytic cell 1 is electrified to work, current flows into the central cathode 3 from the anodes 2 around through the electrolyte 4, the winding coil 6 in the annular heat insulation cavity 5 is connected with direct current, if the winding coil 6 generates a vertical downward direct current magnetic field, the electrolyte is subjected to tangential lorentz force in the horizontal direction, and the lorentz force causes the electrolyte to rotate clockwise on the whole, so that the purpose of strengthening the movement of the electrolyte is achieved (see fig. 2); if the winding coil 6 generates a direct current magnetic field vertically upwards, the electrolyte will be subjected to a tangential lorentz force parallel to the electrolyte liquid surface, and the whole electrolyte starts to rotate (see fig. 3).
Example 2:
FIG. 4 shows the device for electrolyte movement in the non-contact reinforced electrolytic cell of the embodiment 2, when the rare earth electrolytic cell 1 is powered on for operation, the current flows from the peripheral anode 2 to the central cathode 3 through the electrolyte 4, and the coil 6 wound in the annular heat insulation cavity 5 is connected with the direct current power supply 7. After the winding coil 6 is connected with direct current, a vertical upward direct current magnetic field can be generated on one half of the section of the rare earth electrolytic tank 1, and a vertical downward direct current magnetic field is generated on the other half of the section of the rare earth electrolytic tank 1, so that half of electrolyte in the rare earth electrolytic tank 1 can be subjected to counterclockwise tangential Lorentz force, and the other half of electrolyte can be subjected to clockwise tangential Lorentz force. Considering that the buoyancy of the bubbles exerts ascending disturbance on the electrolyte, the motion track of the electrolyte is similar to a spiral ascending curve, the device greatly strengthens the motion of the electrolyte and reduces the bottom sinking of the raw materials.
Fig. 5 shows the moving direction of the electrolyte in the embodiment 2, and the electrolyte in each area has different flowing direction, and the opposite-impact circulation motion is started.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. An apparatus for non-contact enhancing electrolyte movement in an electrolytic cell, comprising:
the coil winding device comprises an annular heat insulation cavity, a plurality of winding coils and a direct-current power supply; wherein the content of the first and second substances,
the annular heat insulation cavity can be sleeved on the periphery of the electrolytic cell;
the plurality of winding coils are axially and vertically arranged in the annular heat insulation cavity and surround the electrolytic cell, are independent from each other and are respectively electrically connected with the direct current power supply, and can generate a direct current magnetic field for strengthening the movement of electrolyte in the electrolytic cell after the direct current is connected.
2. The apparatus for enhancing electrolyte movement in an electrolytic cell as claimed in claim 1, wherein each of the coils is formed by winding an enameled wire on a cylindrical surface of a coil keel in multiple layers in a close-wound manner;
the direction of each winding coil meets the following requirements: if all the wound coils are simultaneously connected with direct current with the same direction, direct current magnetic fields with the same direction can be generated in all the areas of the electrolytic cell;
if the direct current in different directions is conducted by the wound coils, direct current magnetic fields in opposite directions can be generated in a plurality of areas of the electrolytic bath.
3. The apparatus for intensifying the motion of an electrolyte in an electrolytic cell as recited in claim 1 or 2, wherein said annular insulating cavity is an annular insulating cavity with a snap.
4. A method of enhancing movement of electrolyte in an electrolytic cell, characterized in that the apparatus for enhancing movement of electrolyte in an electrolytic cell according to any one of claims 1 to 3 is used, comprising:
the device for strengthening the movement of the electrolyte in the electrolytic cell is arranged outside the electrolytic cell;
and D, connecting direct current to each wound coil of the device for strengthening the movement of the electrolyte in the electrolytic cell, generating a direct current magnetic field in the electrolytic cell, enabling the electrolyte as the magnetic fluid to generate Lorentz force under the action of the direct current magnetic field, enabling the electrolyte to obtain tangential movement speed by the Lorentz force, and simultaneously superposing anode bubbles to stir the rising buoyancy of the electrolyte to strengthen the movement of the electrolyte.
5. The method of claim 4, wherein if all the coils are simultaneously energized with direct current in the same direction, the method generates direct current magnetic fields in the same direction in all the areas of the electrolytic cell;
if the direct current in different directions is conducted by the wound coils, direct current magnetic fields in opposite directions are generated in a plurality of areas of the electrolytic bath.
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| CN202011346755.9A CN112481659B (en) | 2020-11-26 | 2020-11-26 | Device and method for strengthening electrolyte movement in electrolytic cell in non-contact manner |
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| CN202011346755.9A CN112481659B (en) | 2020-11-26 | 2020-11-26 | Device and method for strengthening electrolyte movement in electrolytic cell in non-contact manner |
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Cited By (1)
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| US20220093302A1 (en) * | 2020-09-22 | 2022-03-24 | U.S. Army Combat Capabilities Development Command, Army Research Laboratory | Open-bore co-electrodeposition of metal matrix composite coatings using permanent magnets |
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