Metal gallium electrolytic reaction kettle

Abstract

The utility model relates to a metal gallium electrolytic reaction kettle which comprises a kettle body provided with a stirring device, the stirring device comprises a stirring shaft and a stirring blade connected with the stirring shaft, the stirring blade comprises a bottom arm and vertical arms connected to the two ends of the bottom arm, the vertical arms and the bottom arm form a U-shaped structure with an upward notch, and the stirring shaft is fixedly connected with the middle of the bottom arm. A temperature measuring component is fixed at the upper end of the kettle body and comprises a temperature measuring sensor and a component shell arranged on the periphery of the temperature measuring sensor, the component shell comprises a middle cylindrical shell and shell lugs arranged on two opposite sides of the cylindrical shell, the temperature measuring sensor is arranged in the cylindrical shell, and the two shell lugs are distributed along the radial direction of the kettle body; and the lower end of the component shell extends into the notch of the stirring blade. According to the utility model, the technical problem that the stirring effect is limited because the electrolyte is stirred by only depending on the stirring blades in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gallium electrolysis, in particular to a metal gallium electrolysis reactor. Background Art

[0002] The electrolysis industry is an important raw material industry of the country. As a semiconductor material, metal gallium has important application prospects in the fields of electronics industry, heat dissipation, additive manufacturing, flexible machines, biomedicine, etc.

[0003] At present, the consumption fields of metal gallium in China include semiconductors and optoelectronic materials, solar cells, alloys, medical devices, magnetic materials, etc. Among them, the semiconductor industry has become the largest consumption field of gallium, accounting for about 80% of the total consumption. With the rapid development of the downstream application industries of gallium, especially the semiconductor industry and the solar cell industry, the future demand for metal gallium will also increase steadily.

[0004] Electrolysis is the main means for producing metal gallium. The process of electrolyzing gallium in the prior art is as follows: an electrolytic solution is introduced into an enamel (or glass-lined) reactor, and the electrolytic solution is stirred by a stirring device to make the electrolytic solution mix evenly, and the reaction temperature of the electrolytic solution is measured by a temperature sensor. The problems existing in the existing metal gallium electrolysis reactor are that the stirring effect of the traditional stirring device is limited, making it difficult to stir the electrolytic solution evenly, which affects the electrolysis efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to provide a metal gallium electrolysis reactor to solve the technical problem that the stirring effect is limited by simply relying on the stirring blades to stir the electrolytic solution in the prior art.

[0006] To solve the above technical problem, the technical solution of a metal gallium electrolysis reactor in the utility model is as follows:

[0007] A metal gallium electrolysis reactor includes a reactor body provided with a stirring device. The stirring device includes a stirring shaft and stirring blades connected to the stirring shaft. The stirring blades include a bottom arm and vertical arms connected to both ends of the bottom arm. The vertical arms and the bottom arm form a U-shaped structure with the notch facing upward. The middle part of the bottom arm is fixedly connected to the stirring shaft. A temperature measuring component is fixed at the upper end of the reactor body. The temperature measuring component includes a temperature measuring sensor and a component housing arranged outside the temperature measuring sensor. The component housing includes a cylindrical housing in the middle and housing wing ears arranged on opposite sides of the cylindrical housing. The temperature measuring sensor is arranged in the cylindrical housing. The two housing wing ears are distributed radially along the reactor body, and the lower end of the component housing extends into the notch of the stirring blade.

[0008] Further, the temperature measuring component gradually inclines and extends towards the axis direction of the reactor body from top to bottom.

[0009] Further, the housing wing ear is integrally formed with the cylindrical housing, and the thickness of the housing wing ear is twice the wall thickness of the cylindrical housing.

[0010] Further, a heat exchange medium jacket is provided at the lower end of the kettle body. A heat exchange medium inlet is provided at the bottom of the heat exchange medium jacket, and a heat exchange medium outlet is provided at the upper end of the heat exchange medium jacket.

[0011] Further, the kettle body includes an upper kettle body and a lower kettle body which are separately arranged. The overflow port is arranged on the lower kettle body. An upper kettle body connection edge is provided at the lower end of the upper kettle body. A lower kettle body connection edge corresponding to the upper kettle body connection edge is provided at the upper end of the lower kettle body. A sealing gasket is arranged between the upper kettle body connection edge and the lower kettle body connection edge. An upper annular groove is provided at the upper end of the upper kettle body connection edge. A lower annular groove is provided at the lower end of the lower kettle body connection edge. The upper kettle body connection edge and the lower kettle body connection edge are connected by a plurality of clips spaced circumferentially. The clip includes a vertical screw rod located outside the kettle body. A nut is connected to the vertical screw rod. The clip further includes an upper clamping member and a lower clamping member which are clamped between the upper annular groove and the lower annular groove under the action of the vertical screw rod and the nut.

[0012] The beneficial effects of the present utility model are as follows: In the present utility model, the lower end of the temperature measuring component extends into the notch of the stirring blade. On the one hand, the housing wing ear can increase the strength of the component housing. In addition, the housing wing ear can also increase the blocking area for the fluid. When the stirring blade stirs the electrolyte, the movement direction of the electrolyte is perpendicular to the housing wing ear, so that the whole temperature measuring component can not only be used for temperature measurement, but also play the role of a baffle to block the electrolyte, thereby improving the stirring effect of the stirring device on the electrolyte and making the electrolyte more uniform. Description of the Drawings

[0013] By referring to the drawings and reading the detailed description below, the above and other objects, features and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0014] Figure 1 is a schematic structural diagram of an embodiment for the continuous production of metal gallium electrolysis in the present invention;

[0015] Figure 2 is Figure 1 a top view of the kettle body in

[0016] Figure 3 is Figure 1 a sectional view taken along the line A-A in

[0017] Figure 4 is Figure 1Schematic diagram of the cooperation between the vertical feed pipe and the arc feed pipe;

[0018] Figure 5 is Figure 4 Cross-sectional view taken along the B-B direction of;

[0019] 1. Variable-frequency motor; 2. Reducer; 3. Motor support; 4. Coupling; 5. Electrolyte feed inlet; 6. Kettle body; 7. Clamp; 8. Sidewall sight glass; 9. Heat exchange medium jacket; 10. Heat exchange medium outlet; 11. Temperature measuring component; 12. Overflow port; 13. Support ear seat; 14. Heat exchange medium inlet; 15. Pneumatic upper expansion valve; 16. Vertical feed pipe; 17. Arc feed pipe; 18. Stirring shaft; 19. Stirring blade; 20. Cylindrical shell; 21. Shell wing ear; 22. Injection feeding port; 23. Bottom arm; 24. Vertical arm; 30. Straight pipe section; 31. Sidewall communication hole; 32. Upper clamping piece; 33. Lower clamping piece; 34. Upper side annular groove; 35. Lower side annular groove; 36. Top sight glass. Specific implementation mode

[0020] For the convenience of understanding the present invention, the present invention will be described in more detail below in conjunction with the drawings and specific embodiments. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure content of the present invention more thorough and comprehensive.

[0021] It should be noted that unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention.

[0022] An embodiment of a metal gallium electrolysis reactor in the present invention is as Figures 1 - 5 shown:

[0023] The reactor is an enamel (or glass-lined) reactor, including a vertically arranged kettle body 6. A metal gallium discharge port is provided at the bottom of the kettle body, and a pneumatic upper expansion valve 15 is provided at the metal gallium discharge port. An electrolyte feed inlet 5 is provided at the upper end of the kettle body, and a stirring device is provided on the kettle body. The pneumatic upper expansion valve realizes bottom discharging, discharging, sampling and dead zone-free shut-off operations, and eliminates the residual phenomenon of process media at the bottom outlet of the electrolytic refining metal gallium reactor.

[0024] In this embodiment, the kettle body includes an upper kettle body and a lower kettle body which are separately arranged. The lower end of the upper kettle body is provided with an upper kettle body connecting edge, and the upper end of the lower kettle body is provided with a lower kettle body connecting edge which is arranged corresponding to the upper kettle body connecting edge. A sealing gasket is arranged between the upper kettle body connecting edge and the lower kettle body connecting edge. An upper annular groove 34 is arranged at the upper end of the upper kettle body connecting edge, and a lower annular groove 35 is arranged at the lower end of the lower attachment connecting edge. The upper attachment connecting edge and the lower kettle body connecting edge are connected by a plurality of clips 7 which are arranged at intervals in the circumferential direction. The clip includes a vertical screw located on the outside of the kettle body, and a nut is connected to the vertical screw. The clip also includes an upper clamping piece 32 and a lower clamping piece 33 which are clamped between the upper annular groove and the lower annular groove under the action of the vertical screw and the nut. That is to say, the vertical screw rod passes through the upper clamping part and the lower clamping part in the up-down direction. When the nut is tightened, the upper clamping part and the lower clamping part move relative to each other, thereby clamping the upper kettle body connecting edge and the lower kettle body connecting edge. When the nut is loosened, the upper clamping part and the lower clamping part move back to back, and the clamping of the upper kettle body connecting edge and the lower kettle body connecting edge can be easily loosened, so that the upper kettle body can be easily removed from the lower kettle body. The vertical screw rod does not pass through the upper kettle body connecting edge and the lower kettle body connecting edge, so it will not affect the strength of the upper kettle body connecting edge and the lower kettle body connecting edge, and the vertical screw rod will not damage the sealing gasket structure. At the same time, the nut does not need to be completely unscrewed from the vertical screw rod to complete the disassembly of the upper kettle body, which is very fast.

[0025] A plurality of support ears 13 arranged at intervals along the circumferential direction are fixed on the lower kettle body. When in use, the lower kettle body can be fixed on the corresponding base body through the support ears.

[0026] The stirring device includes a vertically arranged stirring shaft 18, on which a stirring blade 19 located in the kettle body is fixed, and a variable frequency motor 1 for driving the stirring shaft to rotate is arranged on the upper side of the kettle body, and the power output end of the variable frequency motor is connected to the stirring shaft 18 through a reducer 2. The variable frequency motor is fixed to the upper end of the upper kettle body through a motor bracket 3. Item 4 in the figure represents a coupling connected between the reducer 2 and the stirring shaft 18.

[0027] The stirring blade 19 includes a bottom arm 23 and vertical arms 24 connected to both ends of the bottom arm. The vertical arms and the bottom arm form a U-shaped structure with the notch facing upwards, and the stirring shaft is fixedly connected to the middle of the bottom arm. A temperature measuring component 11 is fixedly installed at the upper end of the kettle body 6. The temperature measuring component includes a temperature measuring sensor and a component housing arranged around the temperature measuring sensor. The component housing includes a cylindrical housing 20 in the middle and housing wing ears 21 arranged on opposite sides of the cylindrical housing. The thickness of the housing wing ears is less than the radius of the cylindrical housing. Specifically, the thickness of the housing wing ears is twice the wall thickness of the cylindrical housing. The housing wing ears and the cylindrical housing are integrally formed. During processing and manufacturing, the opposite sides of a metal cylinder are pinched flat to form the housing wing ears, and the middle of the metal cylinder forms the cylindrical housing. The temperature measuring sensor is arranged inside the cylindrical housing. The two housing wing ears are distributed radially along the kettle body. On the one hand, the housing wing ears can increase the strength of the component housing. In addition, the housing wing ears can also increase the blocking area for the fluid. The lower end of the component housing extends into the notch of the stirring blade. The temperature measuring component gradually inclines and extends towards the axis direction of the kettle body from top to bottom.

[0028] In this way, the temperature measuring component can not only play the role of measuring the temperature of the electrolyte, but also block the electrolyte with the stirring of the stirring device, acting as a stirring baffle plate, making the stirring more uniform.

[0029] An overflow port 12 is arranged on the side wall of the kettle body. The overflow port 12 is arranged at the upper end of the lower kettle body. A vertical feed pipe 16 is arranged at the electrolyte feed port. The bottom of the vertical feed pipe 16 is connected to an arc-shaped feed pipe 17 with its axis extending in the up and down direction. The height of the arc-shaped feed pipe 17 is not lower than the lowest point of the overflow port 12. Spray feeding ports 22 for bursting the foam on the surface of the electrolyte are distributed on the pipe wall of the arc-shaped feed pipe 17 and face towards the axis direction of the kettle body: The arc-shaped feed pipe 17 and the overflow port 12 are located on opposite sides of the axis of the kettle body.

[0030] In this embodiment, the arc-shaped feed pipe 17 is fixed to the lower end of the vertical feed pipe 16. The inner cavity of the arc-shaped feed pipe 17 is communicated with the inner cavity of the vertical feed pipe 16. The arc-shaped feed pipe 17 is arranged coaxially with the kettle body. The central angle of the arc-shaped feed pipe is 50° - 240°.

[0031] A side wall sight glass 8 is arranged on the side wall of the kettle body on the opposite side of the overflow port. The height of the side wall sight glass is the same as the height of the overflow port. A top sight glass 36 is arranged on the top of the kettle body.

[0032] A heat exchange medium jacket 9 is provided on the outer side of the lower kettle body. A heat exchange medium inlet 14 is provided at the bottom of the heat exchange medium jacket, and a heat exchange medium outlet 10 is provided at the upper end of the heat exchange medium jacket. The electrolyte is heated by the heat exchange medium in the heat exchange medium jacket to meet the electrolysis process temperature of the gallium metal liquid. The present invention innovatively solves the technical problems in the prior art, such as uneven stirring of the gallium metal liquid in the electrolytic refining gallium reaction kettle, easy precipitation, inability to conduct sufficient heat exchange, resulting in low production efficiency of the electrolytic refining gallium liquid, the existence of foam, low quality of the gallium metal product, and the inability to achieve automated continuous and stable production.

[0033] The reaction kettle in the present invention can achieve continuous production of gallium metal. During operation, the electrolyte passes through the vertical feed pipe and the arc feed pipe, and finally sprays onto the surface foam of the electrolyte in the kettle body through the spray feeding port. The excess electrolyte flows out through the overflow port. After the newly added electrolyte is sprayed out through the spray feeding port, it will crack the surface foam, and at the same time, it will also push the floating foam out through the overflow port, which is beneficial to improving the purity of electrolytic gallium. The staff can shine a flashlight (or other lights) at the top sight glass. The light diffuses from top to bottom and can illuminate the entire surface of the electrolyte. The staff can clearly see the cracking situation of all surface foams from the side sight glass.

[0034] In the above description of this specification, unless otherwise clearly specified and limited, terms such as "fixed", "installed", "connected" or "joined" should be understood in a broad sense. For example, in the case of the term "connected", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly limited in this specification, those skilled in the art can understand the specific meanings of the above terms in this utility model according to specific circumstances.

[0035] According to the above description of this specification, those skilled in the art can also understand the following terms used, such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise", etc. The terms indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings of this specification. It is only for the purpose of facilitating the description of the solution of this utility model and simplifying the description, rather than explicitly or implicitly indicating that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above terms indicating the orientation or position relationship cannot be understood or interpreted as a limitation to the solution of this utility model.

[0036] In addition, the terms "first" or "second" used in this specification, which are terms used to refer to numbers or ordinals, are for descriptive purposes only and should not be construed as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "a plurality of" is at least two, such as two, three or more, etc., unless otherwise specifically defined.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal gallium electrolysis reactor, comprising a reactor body provided with a stirring device, the stirring device comprising a stirring shaft and stirring blades connected to the stirring shaft, characterized in that: The stirring blade includes a bottom arm and vertical arms connected to both ends of the bottom arm. The vertical arms and the bottom arm form a U-shaped structure with the notch facing upward. The middle part of the bottom arm is fixedly connected to the stirring shaft. A temperature measuring component is fixedly installed at the upper end of the kettle body. The temperature measuring component includes a temperature measuring sensor and a component housing arranged around the temperature measuring sensor. The component housing includes a cylindrical housing in the middle and housing wing ears arranged on opposite sides of the cylindrical housing. The temperature measuring sensor is arranged inside the cylindrical housing. The two housing wing ears are distributed radially along the kettle body, and the lower end of the component housing extends into the notch of the stirring blade.

2. The gallium metal electrolysis reactor according to claim 1, characterized in that: The temperature measuring component gradually inclines and extends towards the axis direction of the kettle body from top to bottom.

3. The metal gallium electrolysis reactor according to claim 1, characterized in that: The housing wing ears and the cylindrical housing are integrally formed, and the thickness of the housing wing ears is twice the wall thickness of the cylindrical housing.

4. The metal gallium electrolysis reactor according to claim 1, wherein: A heat exchange medium jacket is arranged at the lower end of the kettle body. A heat exchange medium inlet is arranged at the bottom of the heat exchange medium jacket, and a heat exchange medium outlet is arranged at the upper end of the heat exchange medium jacket.

5. The metal gallium electrolysis reactor according to any one of claims 1 to 4, characterized in that: The kettle body includes a separately arranged upper kettle body and a lower kettle body. An overflow port is arranged on the lower kettle body. A connecting edge of the upper kettle body is arranged at the lower end of the upper kettle body. A connecting edge of the lower kettle body corresponding to the connecting edge of the upper kettle body is arranged at the upper end of the lower kettle body. A sealing gasket is arranged between the connecting edge of the upper kettle body and the connecting edge of the lower kettle body. An upper annular groove is arranged at the upper end of the connecting edge of the upper kettle body, and a lower annular groove is arranged at the lower end of the connecting edge of the lower kettle body. The connecting edge of the upper kettle body and the connecting edge of the lower kettle body are connected by a plurality of clips spaced circumferentially. The clip includes a vertical screw rod located outside the kettle body. A nut is connected to the vertical screw rod. The clip also includes an upper clamping piece and a lower clamping piece that are clamped between the upper annular groove and the lower annular groove under the action of the vertical screw rod and the nut.

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