Molten salt electrolytic furnace for rare earth metal

Abstract

The utility model discloses a molten salt electrolytic furnace for rare earth metal, and belongs to the technical field of molten salt electrolytic furnaces. The molten salt electrolytic furnace for the rare earth metal comprises an electrolytic furnace main body and further comprises a vacuum sealing cover, the vacuum sealing cover is installed above the electrolytic furnace main body, a damping bracket is arranged at the bottom of the electrolytic furnace main body and connected with the electrolytic furnace main body through bolts, an input pipe opening is formed in one side of the electrolytic furnace main body, and an output pipe opening is formed in the other side of the electrolytic furnace main body. The input pipe opening and the electrolytic furnace body are of an integrated structure. In order to solve the problem that the overall power consumption of equipment is increased due to the fact that an additional motor is needed to be involved as driving equipment in the process when a cathode serves as a stirring structure, stirring operation can be achieved due to boiling reaction of electrolyte caused by heating, and the electrolyte in a central area continuously rolls towards the outer side; in the process, electrolysis operation is completed by making contact with the metal cathode, stirring operation can be conducted without the help of additional driving equipment, and power consumption generated when the equipment works is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molten salt electrolysis furnaces, in particular to a molten salt electrolysis furnace for rare earth metals. Background Art

[0002] Molten salt electrolysis is a metallurgical process that uses electrical energy to heat and convert it into chemical energy, melts certain metal salts and uses them as electrolytes for electrolysis to extract and purify metals;

[0003] A Chinese patent with publication number CN220317983U discloses a molten salt electrolysis furnace of rare earth metals praseodymium and neodymium. By setting a driving component and a guide structure, the guide hole guides the cathode. Therefore, when the cathode performs a circular motion, the cathode performs a wave-like motion. The cathode can not only stir the electrolyte liquid in the molten salt electrolysis furnace, but also intermittently move toward the anode, thereby further improving the electrolysis reaction, thereby improving the efficiency of the electrolysis.

[0004] In the above patent, the cathode is used as a stirring structure, and an additional motor is required as a driving device during the process, which will increase the overall power consumption of the device. Utility Model Content

[0005] The utility model aims to provide a molten salt electrolysis furnace for rare earth metals. When heating is performed, a heating pipe heats the metal salts in the furnace. The heating causes a boiling reaction in the electrolyte, thereby realizing a stirring operation. The electrolyte in the central area continuously rolls outward and contacts with the metal cathode during the process to complete the electrolysis operation. No additional driving device is required for the stirring operation, thereby reducing the power consumption generated when the equipment is working, and solving the problems in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a molten salt electrolysis furnace for rare earth metals, comprising an electrolysis furnace body and a vacuum cover, wherein the vacuum cover is installed above the electrolysis furnace body, a shock-absorbing bracket is arranged at the bottom of the electrolysis furnace body, the shock-absorbing bracket is connected to the electrolysis furnace body by bolts, an input pipe port is arranged on one side of the electrolysis furnace body, the input pipe port and the electrolysis furnace body are arranged as an integrated structure, an electrolysis cell is arranged inside the electrolysis furnace body, and a graphite anode is arranged at the bottom of the electrolysis cell.

[0007] Preferably, a lifting shaft is provided at the bottom of the vacuum cover, the lifting shaft is connected to the vacuum cover via bolts, and an air pipe opening is provided at one side of the vacuum cover.

[0008] Preferably, a plurality of heating pipes are provided at the bottom of the vacuum cover, a metal cathode is provided on the outer side of the heating pipe, and the metal cathode is connected to the vacuum cover by bolts.

[0009] Preferably, a gas buffer cavity is provided inside the vacuum cover, and the air pipe opening extends into the gas buffer cavity.

[0010] Preferably, a one-way gas valve is provided inside the gas buffer chamber, and a gas passage is provided at the bottom of the one-way gas valve.

[0011] Preferably, the one-way gas valve extends to the interior of the electrolytic cell through a gas passage.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the heating pipe is located on the inner side of the metal cathode, the metal cathode adopts an annular distribution structure, and the graphite anode is located directly below the heating pipe and the metal cathode. When heating, the heating pipe heats the metal salts in the furnace, and the heating causes the electrolyte to boil, so that the stirring operation can be achieved. The electrolyte in the central area continuously rolls outward and contacts with the metal cathode during the process to complete the electrolysis operation. There is no need to use additional driving equipment for stirring operation, thereby reducing the power consumption generated when the equipment is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall front view of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the vacuum sealing structure of the utility model.

[0017] In the figure: 1. electrolytic furnace body; 2. vacuum cover; 101. inlet pipe port; 102. shock-absorbing bracket; 103. electrolytic cell; 104. graphite anode; 201. lifting and lowering shaft; 202. gas buffer chamber; 203. gas pipe port; 204. heating pipe; 205. metal cathode; 2041. gas passage pipe; 2042. one-way gas valve. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In order to solve the problem of using the cathode as a stirring structure, an additional motor is required as a driving device, which will increase the overall power consumption of the device; please refer to Figure 1-3 , the utility model provides the following solutions:

[0020] A molten salt electrolysis furnace for rare earth metals, comprising an electrolysis furnace body 1, and also comprising a vacuum cover 2, wherein the vacuum cover 2 is installed above the electrolysis furnace body 1, a shock-absorbing bracket 102 is arranged at the bottom of the electrolysis furnace body 1, and the shock-absorbing bracket 102 is connected to the electrolysis furnace body 1 by bolts, an input pipe opening 101 is arranged at one side of the electrolysis furnace body 1, and the input pipe opening 101 and the electrolysis furnace body 1 are arranged as an integrated structure, an electrolytic cell 103 is arranged inside the electrolysis furnace body 1, and a graphite anode 104 is arranged at the bottom of the electrolytic cell 103, a lifting suspension shaft 201 is arranged at the bottom of the vacuum cover 2, and the lifting suspension shaft 201 is connected to the vacuum cover 2 by bolts, and a gas pipe opening 203 is arranged at one side of the vacuum cover 2;

[0021] The raw material can be injected into the electrolytic cell 103 through the input pipe port 101 for heating and electrolysis operation. The gas generated during the electrolysis process can enter the gas buffer chamber 202 inside the vacuum cover 2 through the air pipe port 203 and the one-way gas valve 2042, and finally be discharged through the air pipe port 203 on one side of the gas buffer chamber 202;

[0022] A plurality of heating pipes 204 are provided at the bottom of the vacuum cover 2, a metal cathode 205 is provided on the outside of the heating pipe 204, the metal cathode 205 is connected to the vacuum cover 2 by bolts, a gas buffer chamber 202 is provided inside the vacuum cover 2, a gas pipe port 203 extends to the inside of the gas buffer chamber 202, a one-way gas valve 2042 is provided inside the gas buffer chamber 202, a gas passage 2041 is provided at the bottom of the one-way gas valve 2042, and the one-way gas valve 2042 extends to the inside of the electrolytic cell 103 through the gas passage 2041;

[0023] The heating tube 204 is located on the inner side of the metal cathode 205, and the metal cathode 205 adopts an annular distribution structure. The graphite anode 104 is located directly below the heating tube 204 and the metal cathode 205. When heating, the heating tube 204 heats the metal salts in the furnace, and the heating causes the electrolyte to boil, so that the stirring operation can be achieved. The electrolyte in the central area continuously rolls outward and contacts the metal cathode 205 during the process to complete the electrolysis operation. There is no need to use additional driving equipment for stirring operation, thereby reducing the power consumption generated when the equipment is working.

[0024] Working principle: raw materials can be injected into the electrolytic cell 103 through the input pipe port 101 for heating and electrolysis operation. The heating pipe 204 is located on the inner side of the metal cathode 205. The metal cathode 205 adopts a ring-shaped distribution structure. The graphite anode 104 is located directly below the heating pipe 204 and the metal cathode 205. When heating, the heating pipe 204 heats the metal salts in the furnace. The heating will cause the electrolyte to boil, so that the stirring operation can be achieved. The electrolyte in the central area continuously rolls outward and contacts the metal cathode 205 during the process to complete the electrolysis operation. There is no need to use additional driving equipment for stirring operation, which reduces the power consumption generated when the equipment is working. The gas generated during the electrolysis process can enter the gas buffer chamber 202 inside the vacuum cover 2 through the air pipe port 203 and the one-way air valve 2042, and finally be discharged through the air pipe port 203 on one side of the gas buffer chamber 202.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A molten salt electrolysis furnace for rare earth metals, comprising an electrolysis furnace body (1), characterized in that: The invention also comprises a vacuum cover (2), wherein the vacuum cover (2) is installed above the electrolytic furnace body (1), a shock-absorbing bracket (102) is arranged at the bottom of the electrolytic furnace body (1), and the shock-absorbing bracket (102) is connected to the electrolytic furnace body (1) by bolts, an input pipe opening (101) is arranged on one side of the electrolytic furnace body (1), and the input pipe opening (101) and the electrolytic furnace body (1) are arranged as an integrated structure, an electrolytic cell (103) is arranged inside the electrolytic furnace body (1), and a graphite anode (104) is arranged at the bottom of the electrolytic cell (103).

2. The molten salt electrolysis furnace for rare earth metals according to claim 1, characterized in that: A lifting shaft (201) is provided at the bottom of the vacuum sealing cover (2), the lifting shaft (201) is connected to the vacuum sealing cover (2) via bolts, and an air pipe opening (203) is provided on one side of the vacuum sealing cover (2).

3. The molten salt electrolysis furnace for rare earth metals according to claim 2, characterized in that: A plurality of heating pipes (204) are arranged at the bottom of the vacuum sealing cover (2), a metal cathode (205) is arranged on the outside of the heating pipes (204), and the metal cathode (205) is connected to the vacuum sealing cover (2) via bolts.

4. The molten salt electrolysis furnace for rare earth metals according to claim 3, characterized in that: A gas buffer chamber (202) is provided inside the vacuum sealing cover (2), and the gas pipe opening (203) extends into the inside of the gas buffer chamber (202).

5. The molten salt electrolysis furnace for rare earth metals according to claim 4, characterized in that: A one-way gas valve (2042) is arranged inside the gas buffer chamber (202), and a gas passage (2041) is arranged at the bottom of the one-way gas valve (2042).

6. The molten salt electrolysis furnace for rare earth metals according to claim 5, characterized in that: The one-way gas valve (2042) extends to the interior of the electrolytic cell (103) through the gas passage (2041).

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