A continuous suspension electrolysis device

Abstract

This invention provides a continuous suspension electrolysis device, comprising a furnace body, a graphite tank, a cathode, a wire feeder, a feeder, a liquid delivery pipe, a discharge device, a temperature measuring device, a resistivity measuring device, and a control system. The temperature measuring device is used to acquire at least the temperature information of the alloy liquid, and the resistivity measuring device is used to acquire the resistance information of the alloy liquid. The wire feeder, feeder, discharge device, temperature measuring device, and resistivity measuring device are all connected to the control system. The control system is used at least to acquire and process the temperature and resistance information, and to feed back control commands to the wire feeder, feeder, and discharge device. This invention has advantages such as simple operation, precise control, continuous production capability, and a high degree of automation.

Description

Technical Field

[0001] The invention relates to a metallurgical device, in particular to a continuous suspension electrolysis device. Background Art

[0002] In the current metallurgical industry, alloys of metals with lower density and metals with higher density are used. There are two main production methods. One is to first produce metals with lower density and metals with higher density, and then add them into a furnace in a certain proportion to melt, stir and evenly cast them into ingots for use. This method is costly, and is not suitable for the production of alloys between metals with large differences in density and melting points. Third, it cannot be produced continuously. The other is to use suspension electrolysis production, that is, in a square or circular graphite tank, first melt the molten salt system, then add the lighter metal into the molten salt system to melt and suspend it above the molten salt system, then contact the cathode with the suspended metal liquid to form a liquid cathode, and at the same time add another metal oxide into the graphite tank, turn on the power for electrolysis, and when the required process ratio is reached, lift the cathode, scoop out the alloy and cast it into ingots, and then repeat the above operation for electrolysis production again. Although this method reduces production costs, production is also not continuous. Moreover, the electrolysis reaction mainly occurs in the molten salt system, which will cause the temperature of the lower molten salt to drop and affect the electrolysis efficiency. Thirdly, the quality of the electrolytic alloy cannot be accurately controlled each time.

[0003] In view of the above problems, it is necessary to provide an electrolysis device capable of continuous production. Summary of the invention

[0004] The object of the present invention is to provide an electrolysis device which is simple to operate, precise in control, capable of continuous production and has a high degree of automation.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is:

[0006] A continuous suspension electrolysis device, comprising a furnace, a graphite tank, a cathode, a wire feeder, a feeder and a discharge device, characterized in that the electrolysis device also comprises a temperature measuring device, a resistivity measuring device and a control system; the discharge device is used to take out the alloy liquid formed by electrolysis in the receiving cavity of the graphite tank; the temperature measuring device is at least used to obtain the temperature information of the alloy liquid, and the resistivity measuring device is used to obtain the resistance information of the alloy liquid; the wire feeder, the feeder, the discharge device, the temperature measuring device and the resistivity measuring device are all connected to the control system, and the control system is at least used to obtain and process the temperature information and resistance information, and feedback control instructions to the wire feeder, the feeder and the discharge device. The control system is such as a PLC or an industrial microcomputer.

[0007] Furthermore, the resistivity measuring device is a probe-type resistivity measuring instrument.

[0008] Furthermore, the graphite tank is arranged in the furnace body and connected to the positive electrode of the power supply. The graphite tank has side walls and a bottom wall, and the side walls and the bottom wall are arranged to form a receiving cavity.

[0009] Preferably, the cathode is disposed on the upper side of the receiving cavity and connected to the negative pole of the power supply. The cathode is connected to the lifting mechanism and the lifting of the cathode is controlled according to the control system instructions.

[0010] Furthermore, the wire feeding machine is arranged at one side of the furnace body and is used for feeding the metal wire into the receiving cavity.

[0011] Preferably, the feeder is arranged adjacent to the furnace body and is used for feeding materials into the receiving cavity.

[0012] Furthermore, the electrolysis device also includes a lifting mechanism, the lifting mechanism is connected to the control system, the cathode is connected to the lifting mechanism, and the cathode can move up and down under the action of the lifting mechanism.

[0013] Furthermore, the electrolysis device also includes a voltage measuring device, which is used to obtain voltage information between the cathode and the alloy liquid and feed the voltage information back to the control system. The control system controls and adjusts the lifting mechanism to keep the voltage between the cathode and the alloy liquid consistent.

[0014] Furthermore, the wire feeding machine is also provided with a wire conveying pipe, one end of which is connected to the wire outlet of the wire feeding machine, and the other end extends into the receiving cavity, and the metal wire is introduced into the receiving cavity through the wire conveying pipe.

[0015] Furthermore, a first heating device is provided on the line pipe, and the first heating device is connected to the control system and is used to heat the line pipe.

[0016] Furthermore, the temperature measuring device is also used to obtain temperature information of the transmission line pipe.

[0017] Furthermore, the electrolysis device also includes a liquid infusion tube, one end of which is disposed in the graphite tank, and the other end of which is connected to the discharge device, so that the alloy liquid is discharged through the discharge device via the liquid infusion tube.

[0018] Furthermore, the infusion tube is provided with a second heating device, which is connected to the control system and is used to heat the infusion tube.

[0019] Furthermore, the temperature measuring device is also used to obtain temperature information of the infusion tube.

[0020] The temperature measuring device mentioned above may be a temperature sensor, etc., which is used to obtain the above-mentioned temperature information.

[0021] Furthermore, the cathode is plate-shaped, which not only increases the contact area with the alloy liquid to avoid the local excessive current between the cathode and the alloy liquid affecting electrolysis, but also makes the distance between the metal liquid and the graphite anode uniform, ensuring electrolysis efficiency and product quality.

[0022] Furthermore, the density of the molten salt formed after the material is melted is greater than the density of the alloy liquid.

[0023] Furthermore, the control system can be arranged on the furnace body, or placed in a control box and electrically connected to other subsystems.

[0024] Beneficial effects of the present invention: The present invention maintains a constant temperature of the alloy liquid through real-time adjustment of the control system, and determines whether the quality of the alloy liquid is qualified by measuring the resistance of the alloy liquid in real time and comparing it with preset parameters, and then further adjusts the amount and speed of raw materials added for alloy liquid production in real time through the control system, so that the alloy liquid can be produced continuously; the electrolysis device provided by the present invention also has the advantages of simple operation and precise control. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of an embodiment of an electrolysis device of the present invention;

[0026] Figure numerals: 1. furnace body; 2. graphite tank; 3. molten salt; 4. wire rack; 5. wire feeder; 6. wire pipe; 7. feeder; 8. lifting mechanism; 9. cathode; 10. control system; 11. discharge device; 12. liquid infusion pipe; 13. alloy liquid. DETAILED DESCRIPTION

[0027] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments and accompanying drawings. It should be noted that when an original is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. In the illustrated embodiments, the direction representations, i.e., up, down, left, right, front and back, etc., are relative, and are used to explain that the structures and movements of different components in this application are relative. These representations are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, it is believed that these representations will also change accordingly.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] Reference Figure 1 As shown, a continuous suspension electrolysis device includes a furnace body 1, a graphite tank 2, a wire rack 4, a wire feeder 5, a feeder 7, a lifting mechanism 8, a cathode 9, a control system 10, a discharge device 11, a liquid infusion tube 12, a temperature measuring device, a resistivity measuring device and a voltage measuring device. The inner wall of the furnace body 1 is surrounded to form an inner cavity with an upper opening. The shape of the furnace body 1 is not particularly limited, and is preferably a rectangular parallelepiped or cylindrical shape. Furthermore, a cover body can be provided at the inner cavity opening of the furnace body 1, and the provision of the cover body can protect the electrolysis atmosphere in the furnace body 1.

[0030] The graphite tank 2 is arranged in the inner cavity and connected to the positive electrode of the power supply. The graphite tank 2 has side walls and a bottom wall, and the side walls and the bottom wall are arranged to form a receiving cavity. The shape of the graphite tank 2 is not particularly limited, and is preferably a rectangular parallelepiped or cylindrical shape. The appropriate shape selection can allow the metal wire to have enough time to be extracted by the discharge device 11 after being melted into molten metal, that is, enough electrolytic alloying time. The wire feeder 5 is installed on the upper side of the furnace body 1, and the wire feeder 5 is provided with a wire conveying pipe 6; one end of the wire conveying pipe 6 is connected to the wire outlet of the wire feeder 5, and the other end extends into the receiving cavity of the graphite tank 2 and is arranged close to the right inner wall of the graphite tank 2; a wire rack 4 is also provided on one side of the wire feeder 5, and the wire rack 4 is used to install the metal wire.

[0031] The feeder 7 is installed on the upper side of the furnace body 1, and a feeding device is provided at the discharge port of the feeder 7, and the feeding device extends into the receiving cavity of the graphite tank 2. The feeder 7 can transport the material to be electrolyzed to the receiving cavity of the graphite tank 2 through the feeding device. One end of the infusion pipe 12 is connected to the discharge device 11, and the other end is arranged away from the line pipe 6 and close to the left inner wall of the graphite tank 2.

[0032] The cathode 9 is arranged on the upper side of the accommodating cavity and is connected to the negative pole of the power supply. The cathode 9 is connected to the lifting mechanism 8. The cathode 9 can move up and down in the vertical direction under the drive of the lifting mechanism 8, so that the cathode 9 can extend into the accommodating cavity; the cathode 9 is plate-shaped, which can be a rectangular plate, an elliptical plate or a circular plate, etc. By setting it into a plate-shaped structure, it not only increases the contact area with the alloy liquid, avoids the local excessive current between the cathode and the alloy liquid affecting the electrolysis, but also makes the distance between the alloy liquid and the graphite anode uniform, thereby ensuring the electrolysis efficiency and product quality.

[0033] A first heating device is provided on the outer side of the line pipe 6 , and the first heating device is used to heat the line pipe 6 ; a second heating device is provided on the outer side of the infusion pipe 12 , and the second heating device is used to heat the infusion pipe 12 .

[0034] The temperature probes of the temperature measuring device are respectively arranged in the receiving chamber, the transmission line 6 and the infusion tube 12, and are used to obtain the temperature of the molten salt 3 (molten salt 3 is formed by melting the material to be electrolyzed) and the alloy liquid 13 in the receiving chamber, as well as the temperature information in the transmission line 6 and the infusion tube 12. The resistance probes of the resistivity measuring device are installed at both ends of the infusion tube 12 and in the receiving chamber of the graphite tank 2, and are used to obtain the resistance information of the alloy liquid 13. The voltage probe of the voltage measuring device is arranged in the cathode 9 and the receiving chamber, and is used to obtain the voltage information between the cathode 9 and the alloy liquid 13. The temperature measuring device, resistivity measuring device, voltage measuring device, first heating device, second heating device, wire feeder, feeder, discharge device, lifting mechanism and furnace body are all connected to the control system 10; the control system 10 can be used to obtain the temperature information, resistance information and voltage information, and analyze and process the obtained information, and then feedback control instructions to the temperature measuring device, resistivity measuring device, voltage measuring device, first heating device, second heating device, wire feeder 5, wire pipe 6, discharge device 11, lifting mechanism 8 and furnace body 1 according to the processing structure, and then control and adjust the connection to the control system 10.

[0035] When in use, the metal wire is arranged on the wire rack 4, and one end of the metal wire is installed on the wire feeder 5; the material to be electrolyzed is then added to the receiving chamber of the graphite tank 2 through the wire pipe 6; then the power is turned on to heat and melt the material in the receiving chamber to form a molten salt 3; the control system 10 is started to control and adjust the furnace body 1, the first heating device and the second heating device, so that the temperatures of the molten salt 3, the wire pipe 6 and the liquid infusion pipe 12 in the receiving chamber reach the preset temperature parameters respectively, and the temperature is kept constant; then the wire feeder 5 is started to feed the metal wire into the wire pipe 6, and the metal wire is introduced into the molten salt 3 after being preheated by the wire pipe 6. The metal wire is melted into molten metal under the action of the molten salt 3. Since the density of the metal wire used is less than the density of the molten salt 3, the molten metal formed after the metal wire is melted will be suspended on the molten salt 3; then the lifting mechanism 8 is controlled to lower the cathode 9 and extend it into the molten metal formed by the melting of the metal wire, so that the cathode 9 is in good contact with the molten metal, and electrolysis is started to form an alloy liquid 13. During the electrolysis process, the voltage measuring device monitors the voltage information between the cathode 9 and the alloy liquid 13 in real time, and feeds it back to the control system 10. The control system 10 compares the obtained voltage information with the preset voltage parameters, and adjusts the contact degree between the cathode 9 and the alloy liquid 13 to make the voltage information consistent with the preset voltage parameters; the resistivity measuring device monitors the resistance information of the alloy liquid 13 in real time, and feeds it back to the control system 10 for comparison with the preset resistance parameters. When the measured resistance information is consistent with the preset resistance parameters (consistent resistance indicates that the product is qualified, here the resistivity reaction is obtained by real-time testing), the control system 10 issues a control instruction to the discharge device 11, and the discharge device 11 starts to extract qualified alloy liquid 13; at the same time, the control system 10 analyzes and processes the resistance information, and adjusts the feeding speed of the wire feeder 5, the feeding speed of the wire conveying pipe 6 and the extraction speed of the discharge device 11 in real time according to the processing results, so that the entire production process is stable and continuous.

[0036] The present invention provides a heating device for the transmission pipe 6 so that the metal wire therein can have a preheating process, thereby ensuring that the metal wire can melt quickly after entering the molten salt 3, and avoiding a large temperature change of the molten salt 3 due to the addition of the metal wire; by providing a heating device for the liquid delivery pipe 12, the alloy liquid therein will not reduce the temperature due to the change of flow rate, which will eventually lead to pipeline blockage; through real-time monitoring by the resistivity measuring device and the voltage measuring device, combined with the analysis and processing function of the control system 10, the entire electrolysis process can be carried out stably and continuously; the above improvements make the present invention have the advantages of simple operation, precise control, continuous production and high degree of automation.

[0037] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0038] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A continuous suspension electrolysis device, comprising a furnace, a graphite tank, a cathode, a wire feeder, a feeder, a liquid infusion tube, a second heating device and a discharge device, characterized in that: The electrolysis device also includes a temperature measuring device, a resistivity measuring device and a control system; The discharge device is used to take out the alloy liquid formed by electrolysis in the receiving cavity of the graphite tank; The temperature measuring device is at least used to obtain the temperature information of the alloy liquid; The resistivity measuring device is used to obtain the resistance information of the alloy liquid; One end of the infusion tube is arranged in the graphite tank, and the other end of the infusion tube is connected to the discharge device; The second heating device is provided on the infusion tube, connected to the control system, and is used to heat the infusion tube; The wire feeding machine is also provided with a wire conveying pipe, through which the metal wire in the wire feeding machine is introduced into the receiving cavity, and the wire conveying pipe is provided with a first heating device, which is connected to the control system and is used to heat the wire conveying pipe; The wire feeder, material feeder, material discharging device, temperature measuring device and resistivity measuring device are all connected to the control system, and the control system is at least used to obtain and process the temperature information and resistance information, and to feed back control instructions to the wire feeder, material feeder and material discharging device.

2. The continuous suspension electrolysis device according to claim 1, characterized in that: The electrolysis device further comprises a lifting mechanism which moves at least in the extension direction of the cathode, the lifting mechanism is connected to the control system, the cathode is connected to the lifting mechanism and the lifting and lowering of the cathode is controlled according to the control system instruction.

3. The continuous suspension electrolysis device according to claim 1, characterized in that: The electrolysis device also includes a voltage measuring device, which is used to obtain voltage information between the cathode and the alloy liquid.

4. The continuous suspension electrolysis device according to claim 1, characterized in that: The temperature measuring device is also used to obtain temperature information of the transmission line pipe.

5. The continuous suspension electrolysis device according to claim 1, characterized in that: The temperature measuring device is also used to obtain temperature information of the infusion tube.

6. The continuous suspension electrolysis device according to any one of claims 1 to 5, characterized in that: The cathode is in a plate shape.

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