Membrane frame for electrolytic cell

Abstract

The utility model relates to electrolytic diaphragm frame technical field, specifically disclose a kind of diaphragm cloth tight assembly's electrolytic tank diaphragm frame convenient to diaphragm cloth, including diaphragm frame mechanism, diaphragm frame mechanism is combined by upper frame, lower frame, support frame and crossbeam, multiple cathode frames are placed in diaphragm frame mechanism, diaphragm cloth is equipped outside cathode frame, multiple support frames are fixed on lower frame, crossbeam is set between every two support frame middle portion, support frame top is equipped with upper frame, and multiple limit frame are set in one side of upper frame and lower frame, vertical frame is slidably arranged in limit frame. The utility model aims at making diaphragm cloth both sides reach the effect of tight, help to stabilize the ion exchange between cathode chamber and anode chamber, improve the efficiency of electrolytic reaction, prevent diaphragm cloth from being broken by cathode plate due to wrinkling, deformation and other factors during operation, cause electrolytic tank liquid return acid, cathode and anode short circuit and other phenomena occur, and diaphragm cloth can be quickly replaced, reduce labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of electrolytic cells for electrolytic manganese production, and specifically to an electrolytic cell diaphragm frame that facilitates the tensioning and assembly of the diaphragm cloth. Background Technology

[0002] In the production process of electrolytic manganese, the electrolysis process is carried out in an electrolytic cell equipped with a diaphragm cloth. An electrolyte containing manganese sulfate, ammonium sulfate, and selenium dioxide is injected into the electrolytic cell. The electrolyte is divided into multiple spaced cathode and anode chambers by the diaphragm cloth. Under the action of current, the electrolyte undergoes ion exchange through the diaphragm and maintains different process conditions in the anode and cathode areas to ensure the smooth progress of the electrolysis reaction. Metallic manganese is deposited on the cathode plate in the cathode chamber, and oxygen is deposited on the anode plate in the anode chamber to generate sulfuric acid.

[0003] As a key barrier between the anode and cathode chambers, the diaphragm cloth, if loose, displaced, or unevenly tensioned, can cause a series of problems: obstructed ion flow leads to decreased mass transfer efficiency; the electrode plates can easily puncture the diaphragm, causing cross-contamination and acid backflow; the MnO2 precipitate generated by the anode side reaction can easily adhere to the diaphragm, causing blockage of the diaphragm cloth, ultimately leading to increased cell voltage and reduced current efficiency. Furthermore, when the diaphragm cloth is damaged or perforated, the entire diaphragm frame structure of the electrolytic cell needs to be lifted out of the electrolytic cell, disassembled, replaced, and reassembled, which not only increases material waste but also involves high labor intensity and a harsh working environment. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, the purpose of this utility model is to provide an electrolytic cell diaphragm frame that facilitates the tensioning and assembly of the diaphragm cloth, ensuring that the diaphragm cloth remains taut during assembly and operation. This helps stabilize ion exchange between the cathode and anode chambers, improves the efficiency of the electrolytic reaction, and prevents the diaphragm cloth from being torn by the cathode plate due to wrinkles, deformation, or other factors during operation, thus preventing phenomena such as cross-contamination of the electrolytic cell, acid backflow, and short circuits between the anode and cathode.

[0005] The technical solution proposed by this utility model also facilitates the rapid replacement of the diaphragm cloth. If a diaphragm unit is found to be malfunctioning in the electrolytic cell, it is not necessary to completely disassemble the electrolytic cell diaphragm. Only the malfunctioning diaphragm unit needs to be removed and replaced separately before it can be put into production, which greatly reduces material waste and labor intensity.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: An electrolytic cell diaphragm frame for easy tensioning and assembly of diaphragm cloth includes a diaphragm frame mechanism. The diaphragm frame mechanism is composed of an upper frame, a lower frame, a support frame, and a crossbeam. Multiple cathode frames are placed inside the diaphragm frame mechanism, and diaphragm cloth is provided outside the cathode frames. Multiple support frames are fixed on the lower frame, and a crossbeam is provided between the middle of every two support frames. An upper frame is installed on the top of the support frame. Multiple limiting frames are fixed on one side of both the upper and lower frames, and a vertical frame is slidably arranged inside the limiting frames.

[0007] As a further embodiment of this invention, multiple elastic rubber rings are provided on both sides of the diaphragm cloth.

[0008] As a further embodiment of this utility model, after a vertical frame is slidably arranged within the limiting frame, the elastic rubber ring is tightened by the vertical frame.

[0009] As a further embodiment of this utility model, a sliding groove is provided inside the vertical frame, and a vertical plate is slidably arranged inside the vertical frame.

[0010] As a further embodiment of this utility model, a plurality of openings are provided on one side of the vertical frame, an L-shaped plate is slidably disposed in the opening, and a wedge block is fixed on the side of the L-shaped plate away from the opening, the L-shaped plate and the wedge block are integrally formed.

[0011] As a further embodiment of this utility model, support blocks are fixed on both sides of the wedge block, a guide post is provided on the side of the support block facing the opening, a spring is provided on the guide post, and a limit block is fixed at the other end of the guide post.

[0012] As a further embodiment of this utility model, threaded holes are provided at the top of both the vertical frame and the vertical plate, and the vertical frame and the vertical plate are connected and fixed by bolts passing through the threaded holes.

[0013] As a further embodiment of this utility model, a first wedge is provided at the bottom of the interior of the vertical frame, and a second wedge is provided at the bottom of the vertical plate, wherein the first wedge and the second wedge are adapted to each other.

[0014] As a further embodiment of this utility model, the bottom of the limiting frame provided on one side of the lower frame has a closed structure.

[0015] As a further embodiment of this utility model, the number of limiting frames is the same as that of the cathode frames.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) The present invention provides an electrolytic cell diaphragm frame that facilitates the tensioning and assembly of the diaphragm cloth. In use, the cathode frame and the diaphragm cloth are inserted into the diaphragm frame mechanism in parallel. The vertical frame is inserted into the limiting frame. The operator opens the elastic rubber ring until the bottom of the vertical frame abuts against the limiting frame installed on one side of the lower frame. At this time, the elastic rubber ring is tightened. The vertical plate is inserted into the vertical frame. During the downward sliding of the vertical plate, the first wedge will squeeze the wedge block, thereby opening the sliding part of the L-shaped plate. At this time, the elastic rubber ring will be blocked by the L-shaped plate to prevent the elastic rubber ring from moving upward, so that the two sides of the diaphragm cloth achieve the effect of tensioning. This helps to stabilize the ion exchange between the cathode chamber and the anode chamber, improve the efficiency of the electrolytic reaction, and at the same time prevent the diaphragm cloth from being torn by the cathode plate due to wrinkles, deformation and other factors during operation, which would cause the electrolytic cell to cross-liquid and return acid, short circuit between the anode and cathode and other phenomena.

[0017] (2) If the diaphragm cloth is damaged, there is no need to replace the entire diaphragm cloth. Just loosen the bolts and pull out the vertical plate. At this time, the wedge block will rebound due to the action of the spring, thereby resetting the L-shaped plate and releasing the restriction on the elastic rubber ring. Then pull out the vertical frame to quickly replace the diaphragm cloth. There is no need to disassemble the entire structure and then replace and reassemble it, which greatly reduces material waste, reduces labor intensity, and reduces production delays caused by diaphragm cloth deformation and damage in the electrolytic cell, which is in line with the actual production situation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial exploded structural diagram of the present invention; Figure 3 This is a partial structural schematic diagram of the present invention; Figure 4 This is an enlarged schematic diagram of point A in this utility model; Figure 5 This is a schematic diagram of the wedge-shaped block structure of this utility model; Figure 6 This is a cross-sectional view of the vertical frame and vertical plate of this utility model after fracture.

[0019] In the diagram: 10-Upper frame; 11-Lower frame; 12-Support frame; 13-Crossbeam; 15-Cathode frame; 16-Diaphragm cloth; 17-Limiting frame; 18-Vertical frame; 19-Vertical plate; 20-Bolt; 21-Elastic rubber ring; 22-L-shaped plate; 23-Wedge block; 24-Support block; 25-Guide post; 26-Spring; 27-Threaded hole; 29-First wedge; 30-Limiting block. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see the appendix Figure 1-6 An electrolytic cell diaphragm frame for easy tensioning and assembly of the diaphragm cloth includes a diaphragm frame mechanism composed of an upper frame 10, a lower frame 11, a support frame 12, and a crossbeam 13. Multiple cathode frames 15 are placed inside the diaphragm frame mechanism, and a diaphragm cloth 16 is disposed outside each cathode frame 15. Multiple support frames 12 are fixed on the lower frame 11, and a crossbeam 13 is disposed between the middle of every two support frames 12. The upper frame 10 is mounted on the top of each support frame 12. Multiple limiting frames 17 are fixed on one side of both the upper frame 10 and the lower frame 11, and a vertical frame 18 is slidably disposed within each limiting frame 17. A diaphragm cloth is disposed at the bottom of the diaphragm frame mechanism, and an elastic band is used to tighten the bottom diaphragm cloth.

[0024] Multiple elastic rubber rings 21 are provided on both sides of the diaphragm cloth 16. The elastic rubber rings 21 are tightened by the vertical frame 18 after it is slidably positioned within the limiting frame 17. The number of limiting frames 17 is the same as the number of cathode frames 15.

[0025] The vertical frame 18 has a sliding groove, and a vertical plate 19 is slidably disposed within the vertical frame 18. Multiple openings are provided on one side of the vertical frame 18, and an L-shaped plate 22 is slidably disposed within each opening. A wedge-shaped block 23 is fixed to the side of the L-shaped plate 22 away from the opening, and the L-shaped plate 22 and the wedge-shaped block 23 are integrally formed.

[0026] Both sides of the wedge block 23 are fixed with support blocks 24. A guide post 25 is provided on the side of the support block 24 facing the opening. A spring 26 is provided on the guide post 25. A limit block 30 is fixed at the other end of the guide post 25.

[0027] Both the vertical frame 18 and the vertical plate 19 have threaded holes 27 at their top ends, and the vertical frame 18 and the vertical plate 19 are connected and fixed by bolts 28 passing through the threaded holes 27.

[0028] It should be noted that during disassembly, simply loosen bolt 20 and pull out vertical plate 19. At this time, the wedge block 23 will rebound due to the action of spring 26, thereby resetting L-shaped plate 22, thus releasing the restriction on elastic rubber ring 21, and pulling out vertical frame 18, so that diaphragm cloth 16 can be quickly replaced.

[0029] A first wedge 29 is provided at the bottom of the interior of the vertical frame 18, and a second wedge is provided at the bottom of the vertical plate 19. The first wedge 29 and the second wedge are adapted to each other. The first wedge 29 and the second wedge facilitate the sliding of the vertical plate 19 inside the vertical frame 18, so that the vertical plate 19 and the vertical frame 18 are in close contact. The bottom of the limiting frame 17 provided on one side of the lower frame 11 has a closed structure. The closed structure facilitates the limiting of the vertical frame 18 and facilitates the subsequent use of the diaphragm frame.

[0030] The working principle of this utility model is as follows: When in use, first assemble the diaphragm frame structure. After placing the lower frame 11, fix the multiple support frames 12 by bolts or plugs, then fix the multiple crossbeams 13 between the support frames 12, and then fix the upper frame 10 to the top of the support frame 12 to complete the assembly of the diaphragm frame structure. After assembly, the cathode frame 15 and diaphragm cloth 16 are inserted side by side into the diaphragm frame mechanism. At this time, the elastic rubber rings 21 on both sides of the diaphragm cloth 16 are in a relaxed state. Then, the vertical frame 18 is inserted into the limiting frame 17. The operator opens the elastic rubber rings 21 until the bottom of the vertical frame 18 abuts against the limiting frame 17 installed on one side of the lower frame 11. At this time, the elastic rubber rings 21 are tightened. In order to prevent the elastic rubber rings 21 from moving upward and affecting the tension of the diaphragm cloth 16, the vertical plate 19 is inserted into the vertical frame 18. During the downward sliding of the vertical plate 19, the first wedge 29 will squeeze the wedge block 23, thereby opening the sliding part of the L-shaped plate 22. At this time, the elastic rubber rings 21 are tightened. The L-shaped plate 22 will block the elastic rubber ring 21 from moving upward, thus achieving a taut effect on both sides of the diaphragm cloth 16. Then, the vertical frame 18 and the vertical plate 19 are fixed in the limiting frame 17 by the bolts 20 passing through the threaded holes. If the diaphragm cloth 16 is damaged, there is no need to replace the entire diaphragm cloth 16. Just loosen the bolts 20 and pull out the vertical plate 19. At this time, the wedge block 23 will rebound through the action of the spring 26, thereby resetting the L-shaped plate 22 and releasing the restriction on the elastic rubber ring 21. Then, the vertical frame 18 can be pulled out, and the diaphragm cloth 16 can be quickly replaced without disassembling the entire structure and then replacing and reassembling it, which fits the actual production.

[0031] Finally, it should be noted that the cathode frame and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and adapted controllers and power supplies, are connected by wires. The specific connection method should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A diaphragm frame for an electrolytic cell that facilitates the tensioning and assembly of the diaphragm cloth, characterized in that, The diaphragm frame mechanism is composed of an upper frame (10), a lower frame (11), a support frame (12), and a crossbeam (13). Multiple cathode frames (15) are placed inside the diaphragm frame mechanism. A diaphragm cloth (16) is provided outside the cathode frames (15). Multiple support frames (12) are fixed on the lower frame (11). A crossbeam (13) is provided between the middle of every two support frames (12). An upper frame (10) is installed on the top of the support frame (12). Multiple limiting frames (17) are fixed on one side of the upper frame (10) and the lower frame (11). A vertical frame (18) is slidably arranged inside the limiting frame (17).

2. The electrolytic cell diaphragm frame according to claim 1, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that, Multiple elastic rubber rings (21) are provided on both sides of the diaphragm cloth (16).

3. The electrolytic cell diaphragm frame according to claim 2, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... After the vertical frame (18) is slidably installed in the limiting frame (17), the elastic rubber ring (21) is tightened by the vertical frame (18).

4. The electrolytic cell diaphragm frame according to claim 2, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... The vertical frame (18) is provided with a sliding groove, and a vertical plate (19) is slidably arranged inside the vertical frame (18).

5. The electrolytic cell diaphragm frame according to claim 1, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... The vertical frame (18) has multiple openings on one side, and an L-shaped plate (22) is slidably arranged in the opening. A wedge block (23) is fixed on the side of the L-shaped plate (22) away from the opening. The L-shaped plate (22) and the wedge block (23) are integrally formed.

6. The electrolytic cell diaphragm frame according to claim 5, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... Both sides of the wedge block (23) are fixed with support blocks (24). A guide post (25) is provided on the side of the support block (24) facing the opening. A spring (26) is provided on the guide post (25). A limit block (30) is fixed at the other end of the guide post (25).

7. The electrolytic cell diaphragm frame according to claim 5, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... The top of the vertical frame (18) and the vertical plate (19) are provided with threaded holes (27), and the vertical frame (18) and the vertical plate (19) are connected and fixed by bolts (28) passing through the threaded holes (27).

8. The electrolytic cell diaphragm frame according to claim 4, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... The vertical frame (18) has a first wedge (29) at its bottom, and the vertical plate (19) has a second wedge at its bottom. The first wedge (29) and the second wedge are compatible.

9. The electrolytic cell diaphragm frame according to claim 4, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... The bottom of the limiting frame (17) set on one side of the lower frame (11) is a closed structure.

10. The electrolytic cell diaphragm frame according to claim 4, which facilitates the tensioning and assembly of the diaphragm cloth, is characterized in that... The number of limiting frames (17) is the same as that of cathode frames (15).

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