Device for blocking and collecting gas emission of manganese electrolytic cell

Abstract

The invention relates to a device for obstructing and collecting gas emission of a manganese electrolytic cell, intelligent partition isolation of a cell body of the electrolytic cell is realized by arranging an edge cell isolation mechanism and a central cell isolation mechanism which slide independently, and the defect that sealing reliability and maintenance flexibility are difficult to consider at the same time in the prior art is effectively overcome. The arc-shaped cover plates and the movable inner cover plates which are arranged above the three tank bodies in each group are combined, and are matched with the sealing rings and the contact plates to ensure that each tank body can still keep high-strength leakproofness during maintenance, so that harmful gas leakage is prevented, and the safety in the production process is improved; according to the sealing and fixing mechanism, through the design of a lifting sealing strip and a sliding rod, a cover plate on each electrolytic bath body can be conveniently and rapidly opened and closed, the tedious working procedures in the opening process of a traditional device are reduced, and the requirement for frequent overhauling is met.

Description

Technical Field

[0001] The present invention relates to the technical field of electrolytic cells, and specifically to a device for blocking and collecting gas emissions from manganese electrolytic cells. Background Art

[0002] During the production process of electrolytic manganese, it is usually necessary to set a sealing structure above the electrolytic cell to prevent harmful gases generated during the production process from directly dissipating into the working environment, thereby reducing the harm to operators and the surrounding environment. Most of the existing sealing structures for electrolytic cells achieve sealing and exhaust through installing cover plates, side baffles, and gas pipelines around or on the upper part of the cell body, and cooperate with corresponding exhaust systems or negative pressure systems to achieve the extraction and discharge of gases.

[0003] However, during the production process of the electrolytic cell, the electrodes need to be replaced regularly or maintenance needs to be carried out. This requires the corresponding sealing and gas extraction devices to be able to be quickly opened or partially opened when necessary, and to restore high-strength sealing again after the operation is completed. The opening and closing processes of the cover plates or isolation mechanisms of some existing technologies are relatively complex. Especially when facing multiple adjacent cells, it is particularly difficult to maintain the sealing of other cells while locally opening one or two electrolytic cells. Once the sealing structure is not reasonably designed or cannot be flexibly adjusted, it may lead to gas leakage, a decrease in gas extraction efficiency, or an increase in safety risks during maintenance operations.

[0004] Problems Existing in the Prior Art

[0005] (1) It is difficult to balance flexibility and sealing reliability: When it is necessary to replace parts of the electrolytic cell or the electrodes during production, the corresponding cover plates often need to be opened or removed. If the existing sealing devices cannot be controlled in zones or opened in blocks, it is easy to cause a large area to be opened, increasing the risk of gas leakage; if integral or rigidly connected cover plates are used, the operation is cumbersome during opening and closing and it is impossible to isolate local cells separately.

[0006] (2) Maintenance operations for multiple cells are not convenient enough: In some production sites, multiple electrolytic cells are usually arranged side by side. When it is necessary to repair the middle cell or the cells on both sides, the existing cover plate structures often cannot slide or separate flexibly, easily causing interference between adjacent cells, and even a large number of components may need to be disassembled for maintenance, affecting production efficiency.

[0007] (3) It is difficult for the exhaust system to ensure the continuous effectiveness of local negative pressure: When the cover plates or isolation mechanisms of the electrolytic cell are opened, closed, and the internal structure is adjusted, if the angles and positions of exhaust components such as hoses and valve plates cannot be adapted, it may cause excessive bending of the pipelines, loosening or breakage of the joints due to being pulled, thereby causing air leakage and affecting the exhaust efficiency and safety. Summary of the Invention

[0008] In view of the deficiencies in the prior art, the present invention provides a device for blocking and collecting gas emissions from a manganese electrolytic cell, thereby solving the problem.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A device for blocking and collecting gas emissions from a manganese electrolytic cell, comprising an electrolytic cell body, wherein the upper surface of the electrolytic cell body is evenly provided with cell bodies, wherein three cell bodies are grouped together, and the upper surface of the electrolytic cell body is evenly provided with mounting grooves, wherein the mounting grooves are respectively disposed at both ends of each group of cell bodies;

[0011] Two side groove isolation mechanisms are symmetrically slidably installed above the three pool bodies in the same group, and the two side groove isolation mechanisms isolate and seal the pool bodies on both sides of the same group respectively. A center groove isolation mechanism is slidably installed at one end of the two pool bodies close to each other, and the center groove isolation mechanism isolates and seals the pool body in the center of the same group;

[0012] A sealing fixing mechanism is installed inside the installation groove, and the sealing fixing mechanism is used to seal and fix the end of the side groove isolation mechanism;

[0013] An angle-adaptive exhaust mechanism is installed on the upper rear side of the electrolytic cell body. The angle-adaptive exhaust mechanism can automatically adjust the connection angle and is used to extract the gas inside the two side slot isolation mechanisms.

[0014] Furthermore, track grooves are symmetrically provided on both sides of the upper surface of the electrolytic cell body, and the two side groove isolation mechanisms and the center groove isolation mechanism are combined into a sealed cabin for isolating three cell bodies in the same group, and the side groove isolation mechanism includes an arc-shaped cover plate, and sliders are provided below both ends of the arc-shaped cover plate, and the sliders slide on the inner side of the track grooves, and side baffles are fixed at the ends of the two arc-shaped cover plates that are away from each other, and a sealing ring is provided between the arc-shaped cover plate and the side baffle.

[0015] Furthermore, the center tank isolation mechanism includes inner cover plates that slide on the inner sides of the two arc-shaped cover plates respectively, and an isolation plate is fixed on the side of the inner cover plates that are close to each other. The two inner cover plates cover the top of the cell body in the center of the same group, and sealing contact plates are provided inwardly at both ends of the inner cover plates. The sealing contact plates are in contact with the upper surface of the electrolytic cell body, and the sealing contact plates are used to improve the sealing of the side edges of the inner cover plates.

[0016] Furthermore, a C-shaped groove is provided on one side of the top of the two inner cover plates that are close to each other, and the two C-shaped grooves are combined into a complete circular ring. A rotating pin is vertically rotatably installed on the top of one of the inner cover plates, and the rotating pin coincides with the center of the C-shaped groove. A limit rod is provided on one side of the rotating pin, and the limit rod is L-shaped, and the bottom of the limit rod is adapted to the internal size of the C-shaped groove.

[0017] Furthermore, the sealing and fixing mechanism includes a lifting sealing strip and a sliding rod. The lifting sealing strip slides vertically. A card slot is provided on the top of the lifting sealing strip. The thickness of the side baffle plate is adapted to the internal size of the card slot. A block is provided on the side of the top of the lifting sealing strip away from the side groove isolation mechanism.

[0018] Furthermore, side inspection grooves are evenly opened on the front side of the electrolytic cell body, and the side inspection grooves are connected to the installation grooves one by one. The sliding rod slides horizontally below the installation groove, and connecting rods are symmetrically hinged on the surface of the sliding rod. The ends of the two connecting rods facing away from the sliding rods are hinged at the bottom of the lifting sealing strip.

[0019] Furthermore, an inspection door is installed at the opening of the side inspection slot by bolts, the slide bar passes through the inspection door, an extrusion control bolt is installed at the outer end of the slide bar, and a spring is placed inside the installation slot, and the spring is in contact with the inner end surface of the slide bar.

[0020] Furthermore, a valve body is provided at one end of the rear side surfaces of the two arc-shaped cover plates which face away from each other, and the valve body is in a semicircular structure with an internal center. The valve body is connected to the interior of the arc-shaped cover plate, and a through groove is provided on the surface of the valve body. The angle-adaptive exhaust mechanism includes a fixed seat symmetrically fixed on the rear side of the electrolytic cell body and an arc-shaped valve plate sliding on the inner wall of the valve body, and a wind tube is installed between the two fixed seats, and the end of the wind tube is connected to an exhaust pump.

[0021] Furthermore, the surface of the air duct is evenly provided with docking joints, the end of the docking joint is connected to a hose, the hose passes through the through slot, and one end of the hose away from the docking joint is connected to the arc valve plate.

[0022] The present invention provides a device for blocking and collecting gas emissions from a manganese electrolytic cell. It has the following beneficial effects:

[0023] The problem of balancing sealing reliability and maintenance flexibility in the prior art is solved by arranging independently slidable side slot isolation mechanisms and central slot isolation mechanisms on the main body of the electrolytic cell and implementing partition isolation for three cell bodies in the same group; an arc-shaped cover plate and a freely movable inner cover plate are respectively arranged above each group of electrolytic cell bodies, and the sealing ring fits with the edge of the sealing contact plate, so that when some cell bodies are opened to replace electrodes or for maintenance, other cell bodies can still maintain a good airtight environment, thereby significantly improving the reliability of preventing leakage of harmful gases during the production process.

[0024] By setting a vertically slidable lifting sealing strip in the installation groove and inserting the bottom of the side baffle into the top card slot of the lifting sealing strip, the deficiency in the prior art that the block-by-block opening or closing cannot be achieved quickly is solved; when local inspection or disassembly and assembly of the electrode are required for adjacent cell bodies, only by driving the lifting sealing strip to move downward through the sliding rod and connecting rod assembly to disengage the side baffle from the card slot, the side groove isolation mechanism or the central groove isolation mechanism can slide smoothly, so as to meet the operation requirements of frequent maintenance while maintaining the high-strength sealing of the overall device, and avoid the cumbersome procedures in the opening and closing process of the traditional rigid cover plate.

[0025] By setting a valve body at the rear end of the arc-shaped cover plate and installing an arc-shaped valve plate and a docking head inside the valve body and connecting a hose, the problem of interface misalignment in the prior art that the exhaust system cannot adapt to the movement of the cover plate is solved; since the arc-shaped valve plate can be synchronously adjusted along with the trajectory change of the arc-shaped cover plate, and the through groove and the hose cooperate to provide a flexible angle self-adaptive exhaust structure, the stable negative pressure state inside each cell body can still be ensured during the opening and closing process of the cover plate, avoiding gas leakage caused by pipeline bending or interface loosening, and improving the safety and efficiency of the entire gas exhaust process. Brief Description of the Drawings

[0026] Figure 1 It is a three-dimensional mechanism schematic diagram in the sealed state of the present invention;

[0027] Figure 2 It is a schematic diagram of the main structure of the electrolytic cell body of the present invention;

[0028] Figure 3 It is a three-dimensional structure schematic diagram in the open state of the central isolation mechanism of the present invention;

[0029] Figure 4 It is an exploded structure schematic diagram of the arc-shaped cover plate of the present invention;

[0030] Figure 5 It is a schematic diagram of the connection structure of two inner cover plates of the present invention;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the installation groove of the present invention;

[0032] Figure 7 It is a schematic diagram of the side seal limit mechanism of the present invention;

[0033] Figure 8 It is a schematic diagram of the installation structure of the angle self-adaptive exhaust mechanism and the arc-shaped cover plate of the present invention;

[0034] Figure 9 It is a schematic diagram of the installation structure of the air duct and the arc-shaped valve plate of the present invention.

[0035] Among them, 1. Electrolytic cell main body; 11. Cell body; 12. Track groove; 13. Installation groove; 14. Side maintenance groove;

[0036] 2. Side groove isolation mechanism; 21. Arc-shaped cover plate; 22. Slide block; 23. Sealing ring; 24. Side baffle; 25. Valve body; 26. Through groove;

[0037] 3. Central groove isolation mechanism; 31. Inner cover plate; 32. Sealing contact plate; 33. Isolation plate; 34. Rotating pin shaft; 35. C-shaped groove; 36. Limit rod;

[0038] 4. Side sealing mechanism; 41. Lifting sealing strip; 42. Card slot; 43. Stopper; 44. Slide rod; 45. Spring; 46. Connecting rod; 47. Maintenance door; 48. Extrusion control bolt;

[0039] 5. Angle adaptive exhaust mechanism; 51. Fixed seat; 52. Air duct; 53. Docking head; 54. Hose; 55. Arc-shaped valve plate. Specific implementation mode

[0040] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment:

[0042] Refer to Figures 1-9, a device for blocking and collecting the gas emissions of a manganese electrolysis cell, which can enclose the space above the electrolysis cell during the electrolytic production process of manganese to collect by-product gases such as hydrogen and acid mist, and prevent harmful gases from diffusing into the production environment; the device includes an electrolysis cell main body 1, and a plurality of cell bodies 11 are evenly opened on the upper surface of the electrolysis cell main body 1. Every three cell bodies 11 are arranged in a group to jointly form an electrolysis unit. The grouped design facilitates centralized sealing and gas collection management; on the upper surface of the electrolysis cell main body 1, installation grooves 13 are evenly opened at both ends of each group of cell bodies 11. The installation grooves 13 are used for installing and positioning the sealing components, providing an embedding space at the end of the cover plate to enhance the fixing and sealing effects; two side groove isolation mechanisms 2 are symmetrically and slidably installed above the three cell bodies 11 in the same group. The two side groove isolation mechanisms 2 respectively cover and seal the cell bodies 11 on both sides of this group. At the same time, a central groove isolation mechanism 3 is slidably installed between the adjacent sides of these two cell bodies 11. The central groove isolation mechanism 3 covers and seals the cell body 11 in the center of the same group, so that the upper regions of the three cell bodies 11 in each group form independent closed chambers, effectively blocking the gases generated by each cell body and preventing cross-interference; a sealing and fixing mechanism is installed inside the installation groove 13. The sealing and fixing mechanism is used to press and lock the end of the side groove isolation mechanism 2, realizing the tight fit between the cover plate and the electrolysis cell main body to prevent leakage; an angle self-adaptive exhaust mechanism 5 is installed above the rear side of the electrolysis cell main body 1. The angle self-adaptive exhaust mechanism 5 can automatically adjust the connection angle according to the position of the cover plate, and continuously extract the gases collected inside the two side groove isolation mechanisms 2, and discharge and process them through an external exhaust pump, ensuring that the hydrogen and the like generated during the operation of the manganese electrolysis cell are timely and safely guided and discharged.

[0043] Refer to Figures 1-5, on both sides of the upper surface of the electrolytic cell body 1, linear track grooves 12 are symmetrically arranged along the length direction. The track grooves 12 provide sliding guidance for the side tank isolation mechanism 2, enabling the cover plate to move smoothly along the grooves, facilitating opening or closing above the tank body as needed; the two side tank isolation mechanisms 2 cooperate with the central tank isolation mechanism 3 to jointly form a sealed cabin structure for isolating and enclosing three tank bodies 11 in the same group; in the prior art, an integral cover is usually used to uniformly collect the electrolytic cell gas, while in this device, the cover is modularized into independent cover plate units for every three tanks in a group, which helps to improve the local sealing performance and facilitate group maintenance; the side tank isolation mechanism 2 specifically includes an arc-shaped cover plate 21 covering above the tank body. The arc-shaped cover plate 21 has an arched curved surface structure, which is beneficial for bearing the condensate that may deposit on the cover plate and guiding the liquid droplets to flow to both sides, avoiding the accumulation of liquid in the central position and dripping back into the tank liquid. At the same time, the arc-shaped structure improves the rigidity of the cover plate mechanically, making it not easy to deform; at the lower part of both ends of the arc-shaped cover plate 21, sliders 22 are respectively arranged. The sliders 22 are embedded and slide on the inner side wall of the track groove 12, enabling the cover plate 21 to move smoothly along the track groove, ensuring that the movement path of the cover plate is fixed when opening and closing and the relative position with the sealing contact surface remains unchanged; at one end of the two arc-shaped cover plates 21 away from each other, a side baffle 24 is fixedly connected. The side baffle 24 is a vertical plate-like structure, which seals the gap between the end of the cover plate and the electrolytic cell body and serves as the stress surface for the cooperation between the end of the cover plate and the seal fixing mechanism to bear the pressure applied by the seal fixing mechanism; a sealing ring 23 is arranged at the connection between the arc-shaped cover plate 21 and the side baffle 24. The sealing ring 23 is embedded between the two to form a flexible sealing interface. This sealing part is made of acid-resistant and heat-resistant materials and can maintain the airtightness of the connection when the cover plate slides or expands and contracts due to heat, preventing the leakage of corrosive gas in the electrolytic cell from the end of the cover plate.

[0044] In this embodiment, both the arc-shaped cover plate 21 and the inner cover plate 31 are made of transparent materials, such as glass, so as to facilitate observing the reaction situation of electrolytic manganese in the tank body 11 from the outside and facilitating real-time observation by the staff.

[0045] Refer to Figures 3-5, the central tank isolation mechanism 3 is used to enclose the upper part of the middle tank in each group of triple tanks; it includes two symmetrically arranged inner covers 31, and the two inner covers 31 are respectively slidably arranged in the inner spaces of the corresponding arc-shaped covers 21, so that the cover of the central tank can be telescopically moved horizontally under the guidance of the two side arc-shaped covers; on the side where the inner covers 31 are close to each other, a vertical isolation plate 33 is fixed, and the isolation plate 33 is located at the joint position of the two inner covers, acting as a sealing partition at the joint of the central cover. When the two inner covers are closed to cover the central tank, the isolation plate 33 covers and seals the joint of the two covers, preventing the formation of a gas leakage channel at this place, and also avoiding the serial circulation of the gas in the central tank to the side tank spaces; the two inner covers 31 completely cover the top opening of the same group of central tanks 11 after being combined, forming an independent sealed space; in addition, in order to further improve the tightness between the edge of the inner cover 31 and the upper surface of the electrolytic cell body, sealing contact plates 32 are arranged downward at both the front and rear ends inside the inner cover 31. The sealing contact plates 32 extend inward and press against the upper surface edge of the electrolytic cell body 1. This contact plate structure ensures that the periphery of the inner cover is closely attached to the tank notch when covering the central tank, realizing reliable sealing. Even if there is a slight unevenness on the top surface of the electrolytic cell or deformation occurs due to thermal stress, the sealing contact plates 32 can fill the gaps and enhance the sealing effect.

[0046] Refer to Figure 5 , in order to keep the two inner covers 31 of the central tank isolation mechanism 3 aligned in the closed state and have the necessary locking or rotating functions, a rotating pin shaft assembly is specially provided: on the adjacent side of the top of the two inner covers 31, semi-circular C-shaped grooves 35 are respectively opened. When the two inner covers are closed, these two C-shaped grooves 35 just butt to form a complete circular ring aperture; a rotating pin shaft 34 is vertically installed on the top of one of the inner covers 31, and the position of the rotating pin shaft 34 coincides with the center of the circular ring hole, so that the pin shaft 34 can be inserted into the circular ring space surrounded by the two C-shaped grooves 35; on one side of the rotating pin shaft 34, an L-shaped limiting rod 36 is fixedly connected, and the limiting rod 36 rotates with the pin shaft and can partially extend into the inside of the C-shaped groove 35, and the shape of its bottom end matches the inner cavity of the C-shaped groove; after the two inner covers are closed, the rotating pin shaft 34 rotates to make the short side of the limiting rod 36 insert into the circular ring structure, and the two covers can be firmly locked together, preventing the covers from being misaligned due to the internal gas pressure or air flow disturbance; when it is necessary to open the central cover for maintenance, the rotating pin shaft 34 can be rotated first to make the limiting rod 36 withdraw from the engaged position. At this time, one inner cover can rotate relative to the other around the pin shaft by a small angle to open. The limiting rod 36 contacts the inner wall of the C-shaped groove during the rotation process to play a damping and limiting role, ensuring that the opening process is stable and will not deviate from the center of the pin shaft.

[0047] Refer to Figures 7-8, a sealing and fixing mechanism is arranged in the installation groove 13. The core components include a lifting sealing strip 41 that can slide up and down and a sliding rod 44 that drives its movement; the lifting sealing strip 41 is vertically and slidably installed in the installation groove 13, and its height position is adjustable to meet the requirements of locking or releasing the end of the side groove isolation mechanism 2; a horizontal clamping groove 42 is opened at the top of the lifting sealing strip 41, and the size of the clamping groove 42 matches the thickness of the side baffle 24 of the side groove isolation mechanism 2. When the sealing strip 41 rises to the working position, the bottom edge of the side baffle 24 is embedded in the clamping groove 42 to form a firm fastening, and the clamping groove wall applies a clamping force to the side baffle 24, thereby further pressing the previously arranged sealing ring 23 and sealing the small gap at the end of the cover plate; a stop block 43 is arranged on one side of the top of the lifting sealing strip 41 away from the side groove isolation mechanism 2. The stop block 43, as a limiting part, contacts the inner wall of the installation groove 13 during the lifting and lowering process of the sealing strip to limit its stroke, prevent the sealing strip from sliding out of the groove body excessively, and provide support when the sealing strip rises to the highest position to make it stably locked, ensuring that the sealed clamping state can be reliably maintained.

[0048] Refer to Figure 2 and Figure 7 , on the front side wall of the electrolytic cell body 1, side maintenance grooves 14 are evenly opened along the length direction. Each side maintenance groove 14 communicates with the corresponding installation groove 13 to form a channel for the operator to approach the sealing and fixing mechanism; the sliding rod 44 is located below the installation groove 13 and is slidably installed in the horizontal direction. One end of the sliding rod 44 passes through the side maintenance groove 14 and extends to the outside of the electrolytic cell body for manual pushing and pulling drive; on the left and right sides of the upper surface of the sliding rod 44, connecting rods 46 are symmetrically hinged. The other ends (the ends away from the sliding rod 44) of the two connecting rods 46 are respectively hinged on both sides of the bottom of the lifting sealing strip 41; when the sliding rod 44 moves in the horizontal direction, through the action of the connecting rods 46, the linear motion of the sliding is converted into the vertical motion of the lifting sealing strip 41, thereby realizing the synchronous conversion of the forward and backward pushing and pulling operations of the sliding rod into the rising or falling of the sealing strip; the symmetric distribution of the double connecting rods 46 ensures that the lifting sealing strip 41 is evenly stressed and will not be inclined and jammed, and the whole mechanism is smoothly and reliably driven; through this maintenance mechanism, the staff can stand in front of the electrolytic cell and synchronously drive the lifting and lowering of each group of cover plate sealing strips only by simply pushing and pulling the sliding rod 44, without directly contacting the high-temperature and corrosive environment inside the electrolytic cell, greatly improving the safety and convenience of the operation.

[0049] Refer to Figure 2 and Figure 7, the open end of the side maintenance slot 14 is usually closed by a maintenance door 47 fixed by bolts. The maintenance door 47 covers the side maintenance slot during non-maintenance to prevent the leakage of gas inside the electrolytic cell and protect the internal mechanism; the sliding rod 44 passes through the maintenance door 47 and extends outside the slot, and an extrusion control bolt 48 is installed at its outer end. The extrusion control bolt 48 is equivalent to the manual handle of the sliding rod, which is convenient for the operator to apply pushing and pulling forces; a spring 45 is arranged inside the installation slot 13, with one end abutted against the inner end face of the sliding rod 44 and the other end abutted against the inner wall of the installation slot. The function of the spring 45 is to always push the sliding rod in a predetermined direction, so as to provide the force for the automatic reset or pre-tightening of the lifting sealing strip 41; when it is necessary to lock the cover plate for sealing, open the maintenance door 47 and press the extrusion control bolt 48, push the sliding rod 44 inward to overcome the resistance of the spring 45 and lift the sealing strip 41, so that the clamping groove 42 clamps the side baffle 24, and then close and re-tighten the bolts of the maintenance door 47 to keep the sliding rod in the compressed position, thereby maintaining the sealed locking state of the cover plate; when it is necessary to loosen the seal for maintenance, loosen the fixing bolts of the maintenance door 47 to allow the sliding rod 44 to automatically reset outward under the action of the spring 45, drive the sealing strip 41 to descend so that the clamping groove 42 disengages from the side baffle 24, and the cover plate immediately returns to the free state and can slide and open along the track groove; through the above design, the external one-key control of the sealing and fixing mechanism is realized, and the spring 45 provides a reliable self-resetting and pre-tightening function, which greatly facilitates the daily maintenance of the electrolytic cell while ensuring the reliable sealing of the cover plate.

[0050] Refer to Figures 8-9In order to efficiently extract the gas in the closed cavity and adapt to the position change during the movement of the cover plate, a valve body 25 is installed at the rear end (the side facing away from each other) of each arc-shaped cover plate 21; the valve body 25 is a hollow semi-cylindrical structure, and its inner cavity is connected with the internal space of the arc-shaped cover plate 21 to form an outlet channel for the gas in the inner cavity of the cover plate. The outer surface of the valve body 25 is provided with a narrow and long through groove 26 along the axial direction; the angle-adaptive exhaust mechanism 5 includes two fixed seats 51 symmetrically fixed on the rear side of the electrolytic cell body 1, and an arc-shaped valve plate 55 slidably fitted on the inner wall of the valve body 25, and a transversely arranged wind tube 52 is supported and installed between the two fixed seats 51, and one end of the wind tube 52 is connected to the external exhaust pump pipeline, which is used as a main pipeline for collecting and transporting gas; in the prior art, the cover plate and the exhaust pipeline are connected. Most of the connections are fixed rigid interfaces, and gaps are prone to appear at the interfaces when the cover moves, causing air leakage. However, the present device adopts a valve body 25 and a curved valve plate 55 for sliding and sealing connection, which cleverly realizes a dynamic airtight connection between the cover and the fixed exhaust duct. The curved surface shape of the curved valve plate 55 matches the inner wall of the valve body 25, and can slide in the valve body and always stick to the inner wall as the position of the cover changes. Only the predetermined channel in the valve body is opened to connect the internal space of the cover, ensuring that no matter what position the cover is in, the exhaust channel is tight and leak-free. The fixed seat 51 firmly supports the air cylinder 52 to keep it stationary relative to the electrolytic cell body, and the curved valve plate 55 moves synchronously with the cover to automatically adjust the angle and position, thereby maintaining the smooth flow of the exhaust system and stable suction, ensuring the continuous and effective collection of the gas generated by the electrolytic cell.

[0051] See also Figure 9 A plurality of butt joints 53 are evenly arranged on the pipe wall of the air cylinder 52, each butt joint 53 is connected to the inner cavity of the air cylinder 52 and is used to connect the exhaust hose; a corrosion-resistant and heat-resistant hose 54 is connected to the end of the butt joint 53, one end of the hose 54 is fixed to the butt joint 53, and the other end passes through the through groove 26 of the valve body 25 and is sealed and connected to the arc valve plate 55, so as to establish a flexible air path between the fixed air cylinder 52 and the inside of the movable cover plate 21; when the arc cover plate 21 moves along the track groove, the hose 54 can be stretched or slightly bent in the through groove 26, and drive the arc valve plate 55 to slide synchronously along the inner wall of the valve body 25 , so that the connection port of the hose and the inner cavity of the cover plate always maintains a close fit; the design of this hose combined with the sliding valve plate ensures the angle self-adaptive characteristics of the exhaust system connection, that is, no matter what opening angle or position the cover plate is in, the exhaust pipeline can be adjusted accordingly without leakage from the gaps and without applying excessive resistance to the movement of the cover plate; the multiple docking joints 53 arranged on the air duct 52 can be respectively connected to the corresponding hoses 54 to dock with multiple closed cabin units, ensuring that the gases generated by each group of three cells have independent passages to be collected to the main air duct and discharged centrally by the exhaust pump, which fully reflects the high efficiency and reliability of the device in the gas collection process of the manganese electrolytic cell.

[0052] Working principle: Two side groove isolation mechanisms 2 and two inner cover plates 31 are combined to form a sealed cabin that can isolate three pool bodies 11. The arc-shaped cover plate 21 can slide along the trajectory of the track groove 12, and the inner cover plate 31 can slide axially along the inner wall of the arc-shaped cover plate 21. When it is necessary to replace the electrodes inside the two side pool bodies 11, the arc-shaped cover plate 21 above the corresponding pool body 11 can be slid to the other side, so that the two inner cover plates 31 respectively enter the inside of the arc-shaped cover plate 21, so that the top of the corresponding pool body 11 is opened, which is convenient for operation. On the contrary, when it is necessary to replace the electrodes in the middle pool body 11, the two arc-shaped cover plates 21 are kept fixed to separate the two inner cover plates 31 to achieve the operation. Thus, while maintaining the seal, it is convenient to perform maintenance and repair on the inside of the pool body 11. Isolation plates 33 are installed on the sides of the inner cover plates 31 close to each other to isolate the entire sealed cabin into two different spaces. At this time, an external air extraction pump can extract the air inside the air duct 52 to form a negative pressure, and then through the cooperation of the hose 54 and the arc-shaped valve plate 55, the harmful gases in different spaces are extracted to achieve the work of isolating and collecting harmful gases.

[0053] In the conventional sealed state, the side groove isolation mechanism 2 is fixed by the seal fixing mechanism 4. Due to the existence of the spring 45, the sliding rod 44 has an outward force, and then the lifting sealing strip 41 is pushed up through the connecting rod 46, so that the lifting sealing strip 41 extends beyond the upper surface of the electrolytic cell body 1. At this time, the bottom of the side baffle 24 is placed inside the clamping groove 42 to achieve fixation while increasing the bottom seal. The clamping groove 42 placed on the outside can limit the side baffle 24. During operation, pushing the extrusion control bolt 48 can pull the lifting sealing strip 41 down, so that the upper surface of the lifting sealing strip 41 is lower than the surface of the electrolytic cell body 1, so as to facilitate the side baffle 24 to slide inward. During this process, the stopper 43 is always higher than the surface of the electrolytic cell body 1 to block and limit the side baffle 24 when it returns to its position, improving the convenience of operation. When the central groove isolation mechanism 3 is closed, the two inner cover plates 31 are in contact. The rotation pin 34 can be rotated to drive the limit rod 36 to rotate into the C-shaped groove 35 of the other inner cover plate 31, so as to achieve fixation and prevent the two inner cover plates 31 from separating, and then ensure stability. The bottom sealing contact plate 32 always keeps in contact with the upper surface of the electrolytic cell body 1 to increase the sealing performance of the bottom edge by increasing the contact surface when the inner cover plate 31 slides. When the central groove isolation mechanism 3 is opened, the two inner cover plates 31 respectively slide into the arc-shaped cover plates 21 on both sides. The isolation plate 33 ensures that the two separate spaces in the sealed cabin are in a sealed state, preventing gas leakage during maintenance.

[0054] During the sliding process of the arc-shaped cover plate 21, since the position of the docking head 53 remains unchanged, when the arc-shaped cover plate 21 moves, the connection between the hose 54 and the arc-shaped valve plate 55 will automatically change the angle, so that the arc-shaped valve plate 55 can rotate to a certain extent inside the C-shaped groove 35, thereby ensuring that the connections at both ends of the hose 54 will not be bent too much due to the movement of the arc-shaped cover plate 21, and then effectively protecting it to prevent air leakage at the connection.

[0055] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for blocking and collecting gas emissions from a manganese electrolytic cell, comprising an electrolytic cell body (1), characterized in that: The upper surface of the electrolytic cell body (1) is evenly provided with cell bodies (11), three of the cell bodies (11) form a group, and the upper surface of the electrolytic cell body (1) is evenly provided with mounting grooves (13), the mounting grooves (13) are respectively arranged at both ends of each group of the cell bodies (11); Two side groove isolating mechanisms (2) are symmetrically slidably installed above the three tank bodies (11) in the same group, and the two side groove isolating mechanisms (2) respectively isolate and seal the tank bodies (11) on both sides of the same group, and a center groove isolating mechanism (3) is slidably installed at one end of the two tank bodies (11) close to each other, and the center groove isolating mechanism (3) isolates and seals the tank body (11) at the center of the same group; A sealing fixing mechanism (4) is installed inside the installation groove (13), and the sealing fixing mechanism (4) is used to seal and fix the end of the side groove isolation mechanism (2); An angle-adaptive exhaust mechanism (5) is installed on the upper rear side of the electrolytic cell body (1). The angle-adaptive exhaust mechanism (5) can automatically adjust the connection angle and is used to extract the gas inside the two side slot isolation mechanisms (2).

2. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 1, characterized in that: Track grooves (12) are symmetrically provided on both sides of the upper surface of the electrolytic cell body (1); the two side groove isolation mechanisms (2) and the central groove isolation mechanism (3) are combined to form a sealed cabin for isolating the three cell bodies (11) in the same group; the side groove isolation mechanism (2) comprises an arc-shaped cover plate (21); sliders (22) are provided below both ends of the arc-shaped cover plate (21); the sliders (22) slide inside the track grooves (12); side baffles (24) are fixed to the ends of the two arc-shaped cover plates (21) that are away from each other; and a sealing ring (23) is provided between the arc-shaped cover plate (21) and the side baffle plate (24).

3. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 2, characterized in that: The central tank isolation mechanism (3) comprises inner cover plates (31) which slide on the inner sides of the two arc-shaped cover plates (21) respectively, and an isolation plate (33) is fixed on the side of the inner cover plates (31) close to each other. The two inner cover plates (31) cover the top of the cell body (11) in the same group center, and sealing contact plates (32) are arranged inward at both ends of the inner cover plates (31). The sealing contact plates (32) are in contact with the upper surface of the electrolytic cell body (1), and the sealing contact plates (32) are used to improve the sealing performance of the side of the inner cover plates (31).

4. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 3, characterized in that: A C-shaped groove (35) is provided on one side of the tops of the two inner cover plates (31) close to each other. The two C-shaped grooves (35) are combined into a complete circular ring. A rotating pin (34) is vertically rotatably installed on the top of one of the inner cover plates (31). The rotating pin (34) coincides with the center of the C-shaped groove (35). A limiting rod (36) is provided on one side of the rotating pin (34). The limiting rod (36) is L-shaped. The bottom of the limiting rod (36) is adapted to the internal dimensions of the C-shaped groove (35).

5. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 2, characterized in that: The sealing fixing mechanism (4) comprises a lifting sealing strip (41) and a sliding rod (44); the lifting sealing strip (41) slides vertically; a clamping groove (42) is provided at the top of the lifting sealing strip (41); the thickness of the side baffle (24) is adapted to the inner dimensions of the clamping groove (42); and a stopper (43) is provided at the top of the lifting sealing strip (41) on a side away from the side groove isolation mechanism (2).

6. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 5, characterized in that: The front side of the electrolytic cell body (1) is evenly provided with side inspection grooves (14), and the side inspection grooves (14) are connected to the mounting grooves (13) one by one. The sliding rod (44) slides horizontally below the mounting grooves (13), and connecting rods (46) are symmetrically hinged on the surface of the sliding rod (44). The ends of the two connecting rods (46) facing away from the sliding rod (44) are hinged to the bottom of the lifting sealing strip (41).

7. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 6, characterized in that: An inspection door (47) is installed at the open end of the side inspection slot (14) by means of bolts. The slide bar (44) passes through the inspection door (47). An extrusion control bolt (48) is installed at the outer end of the slide bar (44). A spring (45) is also placed inside the installation slot (13), and the spring (45) is in contact with the inner end surface of the slide bar (44).

8. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 2, characterized in that: A valve body (25) is provided at one end of the rear side surfaces of the two arc-shaped cover plates (21) which are away from each other. The valve body (25) is in a semicircular structure with the interior center thereof. The valve body (25) is connected to the interior of the arc-shaped cover plate (21). A through groove (26) is provided on the surface of the valve body (25). The angle-adaptive exhaust mechanism (5) comprises a fixed seat (51) symmetrically fixed on the rear side of the electrolytic cell body (1) and an arc-shaped valve plate (55) sliding on the inner wall of the valve body (25). A wind tube (52) is installed between the two fixed seats (51), and the end of the wind tube (52) is connected to an exhaust pump.

9. The device for blocking and collecting gas emissions from a manganese electrolytic cell according to claim 8, characterized in that: The surface of the air cylinder (52) is evenly provided with docking joints (53), the end of the docking joint (53) is connected to a hose (54), the hose (54) passes through the through groove (26), and one end of the hose (54) away from the docking joint (53) is connected to the arc-shaped valve plate (55).

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