Electrolytic bath

Abstract

The utility model discloses an electrolytic bath which comprises a frame body and a plurality of plate frames, the plurality of plate frames are sequentially arranged on the frame body along a first direction, grooves are formed in two opposite sides of the plate frames along the first direction, the grooves between two adjacent plate frames are enclosed to form mounting cavities, an anode plate and a cathode plate are respectively arranged in each two adjacent mounting cavities, and the anode plate and the cathode plate are arranged in the mounting cavities. The anode plates, the plate frames and the cathode plates jointly define electrolysis chambers, the upper end and the lower end of each plate frame are provided with a first flow channel and a second flow channel which are used for connecting the electrolysis chambers in series, and the first flow channels and the second flow channels are arranged at intervals with the mounting cavity. According to the invention, the situation that generated metal products are attached to the first flow channel and the second flow channel to cause blockage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolytic cells, and particularly relates to an electrolytic cell. Background Art

[0002] Cobalt is a steel-gray metal with luster, relatively hard and brittle, ferromagnetic, and its magnetism disappears when heated to 1150 °C. The valence of cobalt is divalent and trivalent. It does not react with water at room temperature and is also very stable in humid air. When heated in air above 300 °C, it oxidizes to form CoO, and burns to form CO 3 O 4 when white-hot. The fine metal cobalt powder made by the hydrogen reduction method can spontaneously combust in air to form cobalt oxide, and electrolytic cobalt requires an electrolytic cell for electrolysis operation.

[0003] Patent CN101250726A discloses a closed electrolytic cell and an electrolysis system. The electrolytic cell includes: two end plates, an anode assembly, a cathode assembly, a sealing member, and a pressing device; liquid flow ports are provided on both end plates, and liquid flow through holes are correspondingly provided on the anode assembly and the cathode assembly. The anode assembly and the cathode assembly are arranged at intervals between the two end plates, and a pole chamber is formed between the anode assembly and the cathode assembly. Sealing members are arranged at the contact positions of the anode assembly, the cathode assembly and the end plates, and a closed structure is formed after the anode assembly, the cathode assembly and the end plates are pressed by the pressing device.

[0004] In the above prior art, the cathode plate, the plate frame and the anode plate are stacked in sequence, and liquid flow through holes are opened on the anode and cathode plates for liquid flow. Electrodeposition reactions also occur near the liquid flow through holes, making the generated metal products easily adhere to the vicinity of the liquid flow through holes and block the liquid flow through holes. Summary of the Utility Model

[0005] The purpose of the present utility model is to overcome the above technical deficiencies, and propose an electrolytic cell to solve the technical problem that in the prior art, the cathode plate, the plate frame and the anode plate are stacked in sequence, and liquid flow through holes need to be opened on the anode and cathode plates for liquid flow, but the electrolyzed products adhere to the plates and easily block the liquid flow through holes.

[0006] To achieve the above technical purpose, the present utility model adopts the following technical solutions:

[0007] The present utility model provides an electrolytic cell, including:

[0008] A frame; and

[0009] A plurality of plate frames are sequentially arranged on the frame body along a first direction. Grooves are provided on two opposite sides of each plate frame along the first direction. An installation cavity is formed by enclosing the grooves between two adjacent plate frames. An anode plate and a cathode plate are respectively arranged in each two adjacent installation cavities. The anode plate, the plate frame and the cathode plate jointly enclose an electrolysis chamber. A first flow channel and a second flow channel for connecting a plurality of the electrolysis chambers in series are respectively arranged at the upper and lower ends of each plate frame. The first flow channel and the second flow channel are both arranged at intervals from the installation cavity.

[0010] In some embodiments, the first flow channel is arranged in an L shape. A first end of the first flow channel is located above the electrolysis chamber, and a second end of the first flow channel is located on one side of the plate frame along the first direction and corresponds to the first flow channel of another plate frame.

[0011] In some embodiments, the second flow channel includes a first section and a second section. The first section is located below the electrolysis chamber and penetrates the plate frame along the first direction, and the second section communicates the electrolysis chamber and the first section.

[0012] In some embodiments, the plate frame is further provided with a gas channel. The gas channel includes a first channel and a second channel. The first channel is located above the electrolysis chamber and penetrates the plate frame along the first direction, and the second channel communicates the electrolysis chamber and the first channel.

[0013] In some embodiments, the electrolytic cell further includes a first end plate and a second end plate. The first end plate and the second end plate are respectively arranged at two ends of the plurality of plate frames along the first direction. The first end plate is fixedly installed on the frame body. The first end plate is provided with a liquid inlet hole communicating with the first flow channel. The second end plate is provided with a liquid outlet hole communicating with the second flow channel and a gas outlet hole communicating with the gas channel.

[0014] In some embodiments, the electrolytic cell further includes a pressing mechanism. The pressing mechanism is arranged on the frame body. The pressing mechanism abuts against the second end plate to press the second end plate and the plurality of plate frames against the first end plate.

[0015] In some embodiments, the electrolytic cell further includes a plurality of conductive members. The plurality of conductive members correspond to the plurality of plate frames one by one. One ends of two adjacent conductive members respectively abut against the anode plate and the cathode plate, and the other ends of the conductive members are used for electrically connecting to an external power source.

[0016] In some embodiments, the plate frame is further provided with an installation hole communicating the installation cavity with the upper side surface of the plate frame. The conductive member is arranged in the installation hole, and the upper end of the conductive member extends out of the installation hole.

[0017] In some embodiments, the conductive members on two adjacent frame plates are arranged staggeredly.

[0018] In some embodiments, one end of the conductive member that abuts against the cathode plate or the anode plate can be elastically telescopic.

[0019] Compared with the prior art, for the electrolytic cell provided by the present utility model, the middle part of the frame plate is hollow, a plurality of frame plates are abutted in sequence along the first direction, grooves are provided on two opposite sides of the frame plate, and the grooves between two adjacent frame plates enclose an installation cavity. An anode plate and a cathode plate are respectively arranged in each adjacent two installation cavities. The cathode plate and the anode plate are of the same size and both are adapted to the installation cavity. The anode plate, the frame plate and the cathode plate jointly enclose an electrolytic chamber. A plurality of the electrolytic chambers are connected in series through the first flow channel and the second flow channel, and both the first flow channel and the second flow channel are arranged at intervals from the installation cavity. In this application, the cathode plate and the anode plate are embedded in the installation cavity enclosed by two adjacent frame plates, and the first flow channel and the second flow channel are opened on the frame plate. The first flow channel and the second flow channel avoid the cathode plate and the anode plate, avoiding opening holes in the cathode plate and the anode plate, and since the first flow channel and the second flow channel are arranged on the frame plate, no electrodeposition reaction will occur therein, thereby avoiding the situation that the generated metal products adhere in the first flow channel and the second flow channel and cause blockage.

[0020] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the description, the preferred embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings. The specific implementation manners of the present utility model are given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of an embodiment of the electrolytic cell provided by the present utility model;

[0022] Figure 2 is Figure 1 a partial schematic diagram of the electrolytic cell in

[0023] Figure 3 is Figure 1 a cross-sectional view of the frame plate, the anode plate and the cathode plate in

[0024] Figure 4 is Figure 3 a partial cross-sectional view of the upper part of the frame plate, the anode plate and the cathode plate in

[0025] Figure 5 is Figure 3 another partial cross-sectional view of the upper part of the frame plate, the anode plate and the cathode plate in

[0026] Figure 6 Is Figure 3 Partial cross-sectional view of the middle plate frame, anode plate and lower part of the cathode plate;

[0027] Figure 7 Is Figure 1 Schematic perspective view of the middle plate frame, anode plate and cathode plate;

[0028] Figure 8 Is Figure 1 Schematic perspective view of the middle plate frame, anode plate and cathode plate from another perspective;

[0029] Figure 9 Is Figure 1 Partial cross-sectional view of the middle plate frame;

[0030] Figure 10 Is Figure 8 Partial cross-sectional view of the middle conductive part;

[0031] Figure 11 Is Figure 1 Front view of the first end plate;

[0032] Figure 12 Is Figure 1 Front view of the second end plate.

[0033] Explanation of reference numerals:

[0034] 1 - Frame body;

[0035] 2 - Plate frame, 21 - Groove, 22 - First flow channel, 23 - Second flow channel, 231 - First section, 232 - Second section, 24 - Electrolysis chamber, 25 - Gas channel, 251 - First channel, 252 - Second channel, 26 - Mounting hole;

[0036] 3 - Anode plate;

[0037] 4 - Cathode plate;

[0038] 5 - First end plate, 51 - Liquid inlet hole;

[0039] 6 - Second end plate, 61 - Liquid outlet hole, 62 - Gas outlet hole;

[0040] 7 - Compression mechanism, 71 - Screw rod, 72 - Driving gear, 73 - Driven gear, 74 - Driving motor;

[0041] 8 - Conductive part, 81 - First conductive column, 82 - Second conductive column, 83 - Contact part, 84 - Elastic part. Detailed implementation method

[0042] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0043] To solve the technical problem in the prior art that the cathode plate, the plate frame and the anode plate are sequentially stacked, and liquid flow through holes are opened on the anode and cathode plates for liquid flow, and electrowinning reactions also occur near the liquid flow through holes, causing the metal products generated to adhere near the liquid flow through holes and easily block the liquid flow through holes, the present utility model provides an electrolytic cell. The cathode plate and the anode plate are embedded in the installation cavity enclosed by two adjacent plate frames, and the first flow channel and the second flow channel are opened on the plate frame. The first flow channel and the second flow channel avoid the cathode plate and the anode plate, thus avoiding opening holes on the cathode plate and the anode plate. Since the first flow channel and the second flow channel are arranged on the plate frame and no electrowinning reaction occurs therein, the situation where the metal products generated adhere and block the first flow channel and the second flow channel is avoided.

[0044] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the electrolytic cell in an embodiment of the present utility model.

[0045] The present utility model provides an electrolytic cell, including a frame body 1 and a plurality of plate frames 2. The plurality of plate frames 2 are sequentially arranged on the frame body 1 along a first direction. Grooves 21 are provided on two opposite sides of the plate frame 2 along the first direction. The grooves 21 between two adjacent plate frames 2 enclose to form an installation cavity. An anode plate 3 and a cathode plate 4 are respectively arranged in every two adjacent installation cavities. The anode plate 3, the plate frame 2 and the cathode plate 4 jointly enclose an electrolysis chamber 24. A first flow channel 22 and a second flow channel 23 for connecting a plurality of the electrolysis chambers 24 in series are respectively arranged at the upper and lower ends of each plate frame 2. The first flow channel 22 and the second flow channel 23 are both arranged at intervals from the installation cavity.

[0046] In this embodiment, the middle part of the plate frame 2 is hollow, and a plurality of plate frames 2 are sequentially abutted along the first direction. Grooves 21 are provided on two opposite sides of the plate frame 2. The grooves 21 between two adjacent plate frames 2 enclose an installation cavity. An anode plate 3 and a cathode plate 4 are respectively arranged in each adjacent two installation cavities. The cathode plate 4 and the anode plate 3 have the same size and are both adapted to the installation cavity. The anode plate 3, the plate frame 2 and the cathode plate 4 jointly enclose an electrolysis chamber 24. A plurality of the electrolysis chambers 24 are connected in series through the first flow channel 22 and the second flow channel 23, and both the first flow channel 22 and the second flow channel 23 are arranged at intervals from the installation cavity. In this application, the cathode plate 4 and the anode plate 3 are embedded in the installation cavity enclosed by two adjacent plate frames 2, and the first flow channel 22 and the second flow channel 23 are opened on the plate frame 2. The first flow channel 22 and the second flow channel 23 avoid the cathode plate 4 and the anode plate 3, preventing holes from being opened in the cathode plate 4 and the anode plate 3. Since the first flow channel 22 and the second flow channel 23 are arranged on the plate frame 2, no electrowinning reaction will occur therein, thus avoiding the situation where the metal products generated adhere and block in the first flow channel 22 and the second flow channel 23.

[0047] It should be noted that the plate frame 2 is made of insulating material.

[0048] In this embodiment, please refer to Figure 3 、 Figure 7 and Figure 8 . Two opposite sides of the plate frame 2 along the first direction are respectively a first side and a second side. The groove 21 on the first side is a first groove, and the groove 21 on the second side is a second groove. The first groove and the second groove have the same size and their cross-sectional areas are both larger than the cross-sectional area of the hollow region of the plate frame 2. In two adjacent plate frames 2, the first groove of one of the plate frames 2 and the second groove of the other plate frame 2 enclose the installation cavity, and the cathode plate 4 or the anode plate 3 is arranged in the installation cavity, so that the hollow region of the plate frame 2 is covered by the cathode plate 4 and the anode plate 3, and then the electrolysis chamber 24 is formed. The electrolysis chamber 24 is a sealed cavity. A plurality of plate frames 2 are sequentially abutted along the first direction, forming a plurality of electrolysis chambers 24 spaced along the first direction. The electrolysis chamber 24 is connected to the previous electrolysis chamber 24 through the first flow channel 22 and to the next electrolysis chamber 24 through the second flow channel 23, so that the solution sequentially passes through a plurality of the electrolysis chambers 24 to complete the electrolysis reaction.

[0049] In one of the embodiments, please refer to Figure 3 and Figure 4, the first flow channel 22 is arranged in an L shape. The first end of the first flow channel 22 is located above the electrolysis chamber 24, and the second end of the first flow channel 22 is located on one side of the plate frame 2 along the first direction and corresponds to the first flow channel 22 of the other plate frame 2.

[0050] In this embodiment, for the convenience of description, two adjacent plate frames 2 are the first plate frame and the second plate frame. The first plate frame and the second plate frame are abutted in sequence along the liquid flow direction. The second side of the first plate frame abuts against the first side of the second plate frame. The second end of the first flow channel 22 on the first plate frame is located on the second side, and the second end of the first flow channel 22 on the second plate frame is located on the first side. The two first flow channels 22 correspond to each other, so that two adjacent electrolysis chambers 24 can be connected through the two first flow channels 22, and the second end is located above the groove 21, so that the first flow channel 22 and the groove 21 are arranged at intervals, achieving the purpose of avoiding the groove 21.

[0051] The specific form of the first flow channel 22 is not limited, and it can be one of a square shape, a circular shape or a kidney shape. In this embodiment, the first flow channel 22 is circular.

[0052] In this embodiment, in order to increase the flow rate of the liquid, a plurality of first flow channels 22 are provided. The plurality of first flow channels 22 are arranged at intervals along the second direction, and the first direction and the second direction are perpendicular to each other. Specifically, five first flow channels 22 are provided.

[0053] In one embodiment, please refer to Figure 3 and Figure 6 , the second flow channel 23 includes a first section 231 and a second section 232. The first section 231 is located below the electrolysis chamber 24 and penetrates the plate frame 2 along the first direction, and the second section 232 connects the electrolysis chamber 24 and the first section 231.

[0054] In this embodiment, the first section 231 is arranged at intervals from the groove 21. The first sections 231 of two adjacent plate frames 2 correspond to each other, so that a plurality of first sections 231 can be connected in sequence to form a liquid channel. In this way, the solution can be conveyed to a plurality of electrolysis chambers 24 through the liquid channel at the same time, improving the reaction efficiency. The second section 232 is located in the middle of the plate frame 2, and it is also arranged at intervals from the groove 21. The second section 232 extends in the vertical direction and connects the electrolysis chamber 24 and the first section 231.

[0055] Furthermore, the diameter of the first section 231 is larger than the diameter of the second section 232.

[0056] In one embodiment, please refer toFigure 5 The plate frame 2 is further provided with a gas channel 25, and the gas channel 25 includes a first channel 251 and a second channel 252. The first channel 251 is located above the electrolysis chamber 24 and penetrates the plate frame 2 along a first direction, and the second channel 252 communicates the electrolysis chamber 24 and the first channel 251.

[0057] In this embodiment, when cobalt chloride solution is electrolyzed, metallic cobalt and chlorine gas are generated. Since the electrolysis chamber 24 is a sealed cavity, in order to timely discharge the chlorine gas, the plate frame 2 is further provided with a gas channel 25. The first channels 251 of multiple plate frames 2 are sequentially communicated to form a main channel, and the second channels 252 communicate the electrolysis chamber 24 and the main channel, so as to timely discharge the generated chlorine gas through the gas channel 25 and ensure the continuous progress of the electrolysis reaction.

[0058] In this embodiment, the gas channel 25 is arranged at intervals with the groove 21, so as to achieve the purpose of avoiding the electrode plate.

[0059] In one of the embodiments, please refer to Figure 1 , Figure 11 and Figure 12 , the electrolytic cell further includes a first end plate 5 and a second end plate 6. The first end plate 5 and the second end plate 6 are respectively arranged at two ends of multiple plate frames 2 along the first direction. The first end plate 5 is fixedly installed on the frame body 1. The first end plate 5 is provided with a liquid inlet hole 51 communicating with the first flow channel 22, and the second end plate 6 is provided with a liquid outlet hole 61 communicating with the second flow channel 23 and a gas outlet hole 62 communicating with the gas channel 25.

[0060] In this embodiment, the first end plate 5, multiple plate frames 2 and the second end plate 6 are sequentially arranged along the liquid flow channel direction, so as to form a sealed structure by closing multiple plate frames 2 through the first end plate 5 and the second end plate 6, which is beneficial to the collection of electrolysis products.

[0061] In this embodiment, the first end plate 5 and the second end plate 6 are also provided with grooves on the side facing the plate frame 2. The grooves on the first end plate 5 and the second end plate 6 are adapted to the groove 21 on the plate frame 2. An anode plate 3 or a cathode plate 4 is arranged in the groove between the first end plate 5 and the plate frame 2, and an anode plate 3 or a cathode plate 4 is arranged in the groove between the second end plate 6 and the plate frame 2. Such an arrangement can ensure that the plate frames 2 at both ends among multiple plate frames 2 can form an electrolysis chamber 24.

[0062] In one of the embodiments, please refer to Figure 1 and Figure 2, the electrolytic cell further includes a pressing mechanism 7, the pressing mechanism 7 is arranged on the frame 1, and the pressing mechanism 7 abuts against the second end plate 6 to press the second end plate 6 and the plurality of plate frames 2 against the first end plate 5.

[0063] In this embodiment, both the second end plate 6 and the plate frame 2 are placed on the frame 1. During electrolysis, a sealed environment is required, so a pressing structure is also provided. The pressing mechanism 7 abuts against the second end plate 6, so that the second end plate 6 and the plate frame 2 can be pressed tightly against the first end plate 5, ensuring that there are no gaps between the end plate and the plate frame 2 and between the plate frames 2, achieving a better sealing effect.

[0064] In this embodiment, the pressing mechanism 7 includes a lead screw 71, a driving gear 72, a driven gear 73 and a driving motor 74. The driving gear 72 is rotatably installed on the frame 1 along the axis in the first direction, and the driven gear 73 is rotatably installed on the frame 1 along the axis in the first direction. A threaded hole is provided in the middle of the driven gear 73. The driving gear 72 and the driven gear 73 are meshed with each other. The lead screw 71 is in threaded cooperation with the driven gear 73 so that the lead screw 71 can be movably arranged along the first direction. One end of the lead screw 71 abuts against the second end plate 6, and the driving motor 74 is connected to the driving gear 72.

[0065] In one of the embodiments, please refer to Figures 7 to 10 , the electrolytic cell further includes a plurality of conductive members 8. The plurality of conductive members 8 correspond to the plurality of plate frames 2 one by one. One ends of two adjacent conductive members 8 abut against the anode plate 3 and the cathode plate 4 respectively, and the other ends of the conductive members 8 are used for electrically connecting to an external power source.

[0066] In this embodiment, since both the anode plate 3 and the cathode plate 4 are embedded in the installation cavity, it is inconvenient to connect the anode plate 3 and the cathode plate 4 to an external power source. Therefore, a conductive member 8 is also provided on the frame body. One end of the conductive member 8 extends into the groove 21 to abut against the cathode plate 4 or the anode plate 3, and the other end of the conductive member 8 extends out of the plate frame 2 from the side surface of the plate frame 2 for electrically connecting to an external power source. Since the conductive member 8 is made of a conductive metal material, the electrode plate can be connected to the external power source through the conductive member 8, which is convenient to use.

[0067] In one of the embodiments, please refer to Figure 9 and Figure 10 , the plate frame 2 is further provided with an installation hole 26 communicating the installation cavity with the upper side surface of the plate frame 2. The conductive member 8 is arranged in the installation hole 26, and the upper end of the conductive member 8 extends out of the installation hole 26.

[0068] In this embodiment, the mounting hole 26 is arranged in an L shape and extends from the upper side surface of the plate frame 2 to the groove 21, thereby communicating the mounting cavity with the outside. The conductive member 8 is adapted to the mounting hole 26, and the conductive member 8 is arranged in the mounting hole 26.

[0069] In one embodiment, please refer to Figure 7 and Figure 8 , the conductive members 8 on two adjacent plate frames 2 are arranged staggeredly.

[0070] In this embodiment, since the anode plate 3 needs to be connected to the positive electrode of the power supply and the cathode plate 4 needs to be connected to the negative electrode of the power supply, and at the same time the width of the plate frame 2 is small, the distance between the adjacent cathode plate 4 and the anode plate 3 is small. In order to avoid short circuit when the two conductive members 8 are wired, the conductive members 8 on two adjacent plate frames 2 are arranged staggeredly, that is, the two adjacent conductive members 8 are arranged at intervals along the second direction, and the first direction and the second direction are arranged at intervals. By setting like this, the distance between the two adjacent conductive members 8 can be increased to avoid short circuit.

[0071] In one embodiment, please refer to Figure 9 and Figure 10 , one end of the conductive member 8 in contact with the cathode plate 4 or the anode plate 3 can be elastically telescopic.

[0072] In this embodiment, since the mounting hole 26 is arranged in an L shape, in order to facilitate the installation of the conductive member 8, the conductive member 8 includes a first conductive column 81, a second conductive column 82, a contact member 83 and an elastic member 84. The first conductive column 81 is adapted to the vertical section of the mounting hole 26, and the first conductive column 81 is arranged in the vertical section of the mounting hole 26. The lower end of the first conductive column 81 is provided with an external thread, and the upper end of the first conductive column 81 extends out of the mounting hole 26. The second conductive column 82 is adapted to the horizontal section of the mounting hole 26, and the second conductive column 82 is arranged in the horizontal section of the mounting hole 26. The second conductive column 82 is provided with a threaded hole, and the first conductive column 81 is threadedly connected to the second conductive column 82, so as to fix the first conductive column 81 and the second conductive column 82 in the mounting hole 26 at the same time. The contact member 83 is elastically telescopically mounted at one end of the second conductive column 82 facing the plate through the elastic member 84 along the first direction, so that the contact member 83 can elastically telescope along the first direction and can compress the elastic member 84 when the contact member 83 is in contact with the plate, thereby ensuring the electrical connection between the contact member 83 and the plate and avoiding the situation of poor contact.

[0073] Specifically, the elastic member 84 is a spring. One end of the second conductive post 82 facing the plate electrode is disposed in the first mounting groove and the second mounting groove. The first mounting groove is located in the middle of the second conductive post 82. The second mounting groove is annularly arranged and is disposed on the outer periphery of the first mounting groove. The spring is disposed in the second mounting groove. One end of the abutting member 83 facing the second conductive post 82 is provided with a mounting portion. The mounting portion is adapted to the first mounting groove. The mounting portion is slidably mounted in the first mounting groove along the first direction, and one end of the spring abuts against the abutting member 83, so that the abutting member 83 is elastically telescopic.

[0074] In this embodiment, the anode plate 3 includes a first electrical connection area and a first electrolysis area arranged in sequence from top to bottom. The first electrolysis area is arranged corresponding to the hollow position of the plate frame 2. The first electrical connection area is arranged corresponding to the mounting hole 26. The conductive member 8 abuts against the first electrical connection area. The surface of the first electrolysis area is sprayed with ruthenium-iridium to improve the electrolysis efficiency. The cathode plate 4 includes a second electrical connection area and a second electrolysis area arranged in sequence from top to bottom. The second electrolysis area is arranged corresponding to the hollow position of the plate frame 2. The second electrical connection area is arranged corresponding to the mounting hole 26. The conductive member 8 abuts against the second electrical connection area. The surface of the second electrolysis area is treated by a sandblasting process, and cobalt products will adhere to the surface through electrolysis.

[0075] It can be understood that the plate electrode mentioned in this application is the cathode plate 4 or the anode plate 3.

[0076] For a better understanding of the present invention, the following Figures 1 to 12 will describe the technical solution of the present invention in detail:

[0077] During specific use, a plurality of the plate frames 2, the cathode plates 4 and the anode plates 3 are sequentially placed on the frame body 1 and abutted against the first end plate 5. Subsequently, the second end plate 6 is placed on the frame body 1 and abutted against the plate frame 2. Then, the driving motor 74 drives the driving gear 72 to rotate. The driving gear 72 meshes with the driven gear 73, so that the driven gear 73 is in threaded cooperation with the lead screw 71, thereby driving the lead screw 71 to move along the first direction, and thus tightly pressing the second end plate 6, the plurality of plate frames 2, the cathode plates 4 and the anode plates 3 against the first end plate 5 to complete the sealing of the device. Then, it is electrically connected to a power source through the conductive member 8, and a solution is conveyed through the liquid inlet hole 51 for electrolysis. The cobalt product generated by electrolysis adheres to the cathode plates 4, and the generated chlorine gas is discharged through the gas channel 25, and the waste liquid is discharged from the liquid outlet hole 61. In this application, the cathode plates 4 and the anode plates 3 are embedded in the installation cavities enclosed by two adjacent plate frames 2, and the first flow channel 22 and the second flow channel 23 are formed on the plate frame 2. The first flow channel 22 and the second flow channel 23 avoid the cathode plates 4 and the anode plates 3, preventing holes from being formed in the cathode plates 4 and the anode plates 3. Since the first flow channel 22 and the second flow channel 23 are formed on the plate frame 2, no electrowinning reaction will occur inside them, thus avoiding the situation where the generated metal products adhere and block the first flow channel 22 and the second flow channel 23.

[0078] The specific embodiments of the present invention described above do not limit the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An electrolytic cell, characterized in that: It includes: Frame; as well as A plurality of plate frames are sequentially arranged on the frame along a first direction, grooves are provided on opposite sides of the plate frames along the first direction, an installation cavity is enclosed by the grooves between two adjacent plate frames, an anode plate and a cathode plate are respectively provided in each of two adjacent installation cavities, the anode plate, the plate frame and the cathode plate are jointly enclosed to form an electrolysis chamber, a first flow channel and a second flow channel for connecting the plurality of electrolysis chambers in series are respectively provided at the upper and lower ends of each plate frame, and the first flow channel and the second flow channel are both spaced apart from the installation cavity.

2. The electrolytic cell according to claim 1, characterized in that The first flow channel is arranged in an L shape, a first end of the first flow channel is located above the electrolysis chamber, and a second end of the first flow channel is located on one side of the plate frame along the first direction and corresponds to the first flow channel of another plate frame.

3. The electrolytic cell according to claim 1, characterized in that The second flow channel includes a first section and a second section, the first section is located below the electrolysis chamber and penetrates the plate frame along a first direction, and the second section communicates with the electrolysis chamber and the first section.

4. The electrolytic cell according to claim 1, characterized in that The plate frame is also provided with a gas channel, which includes a first channel and a second channel. The first channel is located above the electrolysis chamber and penetrates the plate frame along a first direction. The second channel connects the electrolysis chamber and the first channel.

5. The electrolytic cell according to claim 4, characterized in that The electrolytic cell also includes a first end plate and a second end plate, the first end plate and the second end plate are respectively arranged at the two ends of the plurality of plate frames along the first direction, the first end plate is fixedly mounted on the frame, the first end plate is provided with a liquid inlet hole connected to the first flow channel, the second end plate is provided with a liquid outlet hole connected to the second flow channel and an air outlet hole connected to the gas channel.

6. The electrolytic cell according to claim 5, characterized in that The electrolytic cell further includes a clamping mechanism, which is disposed on the frame and abuts against the second end plate to clamp the second end plate and the plurality of plate frames against the first end plate.

7. The electrolytic cell according to claim 1, characterized in that The electrolytic cell also includes a plurality of conductive members, which correspond one to one with the plurality of plate frames, one end of two adjacent conductive members respectively abuts against the anode plate and the cathode plate, and the other end of the conductive member is used for electrical connection with an external power source.

8. The electrolytic cell according to claim 7, characterized in that The plate frame is further provided with a mounting hole communicating with the mounting cavity and the upper side of the plate frame, the conductive member is arranged in the mounting hole, and the upper end of the conductive member extends out of the mounting hole.

9. The electrolytic cell according to claim 7, characterized in that The conductive members on two adjacent plate frames are arranged in a staggered manner.

10. The electrolytic cell according to claim 7, characterized in that The end of the conductive member abutting against the cathode plate or the anode plate can be elastically telescopically arranged.

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