Sealing and heat preservation device for electrolytic cell

Abstract

The invention provides an electrolytic bath sealing and heat preservation device which comprises two sets of sealing plates oppositely arranged on the two sides of a containing groove, and the two sets of sealing plates are both in sliding connection with the top of an electrolytic bath so that the two sets of sealing plates can be oppositely unfolded / closed; the opposite faces of the two sets of sealing plates are provided with grooves matched with the suspender in outline, so that the two sets of closed sealing plates can seal the gap between the guide rod and the containing groove. An elastic piece for driving the two groups of sealing plates to unfold is also arranged at the top of the electrolytic bath; an upper group of limiting plates and a lower group of limiting plates are arranged on the rod wall of the guide rod located in the electrolytic bath, a group of guide columns are vertically arranged on the inner wall of the electrolytic bath, a group of sliding blocks are arranged on the guide columns in an up-down sliding mode, and connecting forks inserted into the rod wall of the guide rod between the two groups of limiting plates are arranged on the sliding blocks; the lower ends of the two sealing plates are respectively hinged with a group of connecting rods, the lower ends of the two groups of connecting rods are connected with a group of elastic pull rods, and the lower ends of the elastic pull rods are arranged on the connecting fork; by means of the device, seepage of smoke dust and heat in the electrolytic cell can be reduced.

Description

Technical Field

[0001] The invention relates to the field of aluminum electrolytic cells, and in particular to a sealing and heat-insulating device for an electrolytic cell. Background Art

[0002] In an aluminum electrolytic cell, the anode is hoisted in the cell by guide rods. To facilitate the hoisting and replacement of the anode, there is a large gap between the accommodating tank for the guide rods at the top of the cell and the guide rods. Therefore, during the operation of the cell, smoke and heat can easily seep out through the gap, causing dust pollution and heat loss in the cell. Summary of the invention

[0003] The purpose of the present invention is to overcome the disadvantages of the background technology and provide an electrolytic cell sealing and heat preservation device.

[0004] The embodiments of the present invention are implemented by the following technical solutions:

[0005] An electrolytic cell sealing and heat preservation device comprises two sets of sealing plates arranged on both sides of a containing tank, and the two sets of sealing plates are slidably connected to the top of the electrolytic tank, so that the two sets of sealing plates can be relatively expanded / closed; grooves matching the profile of the suspension rod are arranged on the opposite surfaces of the two sets of sealing plates, so that the two sets of sealing plates after closing can seal the gap between the guide rod and the containing tank; elastic parts connected to the sealing plates are also arranged on the top of the electrolytic tank, so that the two sets of sealing plates can be expanded;

[0006] An upper and lower set of limit plates are provided on the rod wall of the guide rod in the electrolytic cell, a set of guide columns are erected on the inner wall of the electrolytic cell, a set of sliders are slidably provided on the guide columns, and a connecting fork is provided on the sliders which is inserted on the rod wall of the guide rod between the two sets of limit plates; a set of connecting rods are hinged at the lower ends of the two sealing plates, a set of elastic pull rods are connected to the lower ends of the two sets of connecting rods, and the lower ends of the elastic pull rods are provided on the connecting forks to drive the opening and closing of the two sets of sealing plates by lifting and lowering the guide rods.

[0007] Further, it is defined that the sealing plate has a first end face and a second end face opposite to each other, and the first end faces of the two sets of sealing plates are arranged opposite to each other; the elastic member is at least one set of tension springs connected between the second end face of the sealing plate and the top of the electrolytic cell on the same side.

[0008] Furthermore, a plurality of groups of tension springs are arranged between the second end surface of the sealing plate and the top of the electrolytic cell on the same side, and the plurality of groups of tension springs are evenly spaced.

[0009] Furthermore, the elastic pull rod includes two groups of telescopically connected rod sections, and a spring arranged inside the two groups of rod sections, and two ends of the spring are respectively connected to the inner wall of one group of rod sections.

[0010] Furthermore, gas collecting hoods are detachably provided on both sides of the electrolytic cell, and two groups of positioning columns facing the accommodating tank are provided on the end faces of the gas collecting hoods. A group of positioning holes are respectively provided on the sides of the two groups of sealing plates, and the two groups of positioning holes on the two groups of sealing plates after closing are opposite to the two groups of positioning columns, so that the fixed positions on the gas collecting hood can be inserted into and locked in the two groups of positioning holes.

[0011] Furthermore, two groups of avoidance grooves are provided on the top of the electrolytic cell, and the two groups of avoidance grooves are arranged on both sides of the accommodating tank relatively and are connected to the accommodating tank; a connecting shaft parallel to the length direction of the accommodating tank is provided on the inner wall of each group of avoidance grooves, and the upper ends of the two groups of connecting rods are respectively sleeved on a group of connecting shafts.

[0012] Furthermore, a shell breaking device is provided at the top center of the electrolytic cell, and the lower end of the shell breaking device extends into the interior of the electrolytic cell for shell breaking.

[0013] Furthermore, the guide column is a hollow structure with both ends connected, and a dust suction device is also provided on the top of the electrolytic cell, and the dust suction device is connected to the top of the guide column.

[0014] Furthermore, it also includes insulation bricks stacked on the side walls of the tank shell of the electrolytic tank, and the insulation bricks are supported and fixed by brackets arranged beside the electrolytic tank.

[0015] Furthermore, an insulating cloth bag covering the gas collecting hood is laid on the outer wall of the electrolytic cell to reduce the seepage of smoke and heat along the gap around the gas collecting hood.

[0016] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0017] In the electrolytic cell sealing and insulation device of the present invention, the downward insertion of the anode guide rod will drive the two groups of sealing plates to gather and close relative to each other through the connecting fork and the elastic pull rod, so as to achieve the purpose of sealing the gap between the guide rod and the accommodating tank; in addition, when the anode is hoisted upward, the elastic member will drive the two groups of sealing plates to automatically unfold, and the above device can reduce the seepage of smoke and heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a working state diagram of the electrolytic cell sealing and heat preservation device in an embodiment of the present invention;

[0019] Figure 2 The structure of the electrolytic cell sealing and heat preservation device in the embodiment of the present invention is shown in FIG. Figure 1 ;

[0020] Figure 3 The structure of the electrolytic cell sealing and heat preservation device in the embodiment of the present invention is shown in FIG. Figure 2 ;

[0021] Figure 4 for Figure 2A magnified view of part A;

[0022] Icons: 1-electrolytic cell, 10-insulation brick, 11-bracket, 12-gas collecting hood, 120-positioning column, 13-guide rod, 130-limiting plate, 14-hanging device, 15-accommodating groove, 16-avoidance groove, 20-guide column, 21-slider, 22-connecting fork, 23-elastic pull rod, 230-rod section, 24-connecting rod, 240-connecting shaft, 25-sealing plate, 250-positioning hole, 251-groove, 26-elastic part, 30-dust suction device, 31-shell breaking device. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Reference Figures 1 to 4 The present invention discloses a sealing and heat-insulating device for an electrolytic cell, wherein detachable gas collecting covers 12 are provided on both side walls of the electrolytic cell 1. When hoisting and replacing the anode, the gas collecting covers 12 need to be removed first.

[0025] The electrolytic cell sealing and heat preservation device in this embodiment is mainly used for sealing between the anode guide rod 13 and the containing tank 15 on the electrolytic cell 1 .

[0026] Specifically, refer to Figure 3 The electrolytic cell sealing and heat preservation device includes two sets of sealing plates 25 arranged relatively on both sides of the accommodating tank 15. The two sets of sealing plates 25 are slidably connected to the top of the electrolytic cell 1 so that the two sets of sealing plates 25 can be relatively expanded / closed. The opposite surfaces of the two sets of sealing plates 25 are provided with grooves 251 matching the contour of the suspension rod. After the two sets of grooves 251 are closed, they can be tightly sealed around the guide rod 13. Therefore, the two sets of sealing plates 25 after closing can seal the gap between the guide rod 13 and the accommodating tank 15.

[0027] It is easy to understand that, in one embodiment, a layer of high temperature resistant rubber may be provided on the opposite surface of the sealing plate 25 and the surface of the groove 251 to enhance the sealing effect.

[0028] Reference Figure 3The top of the electrolytic cell 1 is also provided with an elastic member 26 connected to the sealing plate 25, so that the two groups of sealing plates 25 can be unfolded. Specifically, the sealing plate 25 is defined to have a first end face and a second end face relative to each other, and the first end faces of the two groups of sealing plates 25 are arranged opposite to each other. The elastic member 26 is at least one group of tension springs connected between the second end face of the sealing plate 25 and the top of the electrolytic cell 1 on the same side. When there are several groups of tension springs, the several groups of tension springs are evenly arranged, so that the tensile force on each part of the sealing plate 25 can be uniform, and the opening and closing of the sealing plate 25 is smoother.

[0029] Reference Figure 2 The lower end of the guide rod 13 extends to the inside of the electrolytic cell 1. Therefore, two sets of upper and lower limit plates 130 are provided on the rod wall of the guide rod 13 located in the electrolytic cell 1. A set of upright guide columns 20 are also installed on the top of the inner wall of the electrolytic cell 1. A set of sliders 21 are slidably provided on the guide columns 20. The sliders 21 are provided with a connecting fork 22 on the rod wall of the guide rod 13 inserted between the two sets of limit plates 130. The lifting and lowering of the guide rod 13 can drive the synchronous lifting and lowering of the slider 21 through the connecting fork 22.

[0030] Among them, refer to Figure 4 The lower ends of the two sealing plates 25 are each hinged with a group of connecting rods 24, and the lower ends of the two groups of connecting rods 24 are hinged on a group of elastic pull rods 23. The lower ends of the elastic pull rods 23 are arranged on the connecting fork 22, so that the lifting and lowering of the guide rod 13 can drive the lifting and lowering of the elastic pull rods 23, thereby driving the opening and closing of the two groups of sealing plates 25.

[0031] Among them, the elastic pull rod 23 includes two groups of telescopically connected rod sections 230, and springs are arranged inside the two groups of rod sections 230. The two ends of the springs are respectively connected to the inner wall of a group of rod sections 230. Under the action of the springs, the elastic pull rod 23 composed of the two groups of rod sections 230 shrinks to the shortest. To lengthen the elastic pull rod 23, it is necessary to overcome the contraction elastic force of the spring.

[0032] In one embodiment, referring to Figure 4 Two groups of avoidance grooves 16 are also provided on the top of the electrolytic cell 1. The two groups of avoidance grooves 16 are relatively arranged on both sides of the accommodating groove 15 and are both connected to the accommodating groove 15. The accommodating groove 15 and the two groups of avoidance grooves 16 form a cross structure, wherein a group of connecting shafts 240 parallel to the length direction of the accommodating groove 15 is provided on the inner wall of each group of avoidance grooves 16, and the upper ends of the two groups of connecting rods 24 are respectively sleeved on a group of connecting shafts 240.

[0033] Reference Figure 1Through the above arrangement, when the electrolytic cell 1 is working, the anode and the guide rod 13 are inserted into the electrolyte inside the electrolytic cell 1. At this time, the limit plate 130 in the upper part of the guide rod 13 presses the connecting fork 22 downward, and the connecting fork 22 drives the elastic pull rod 23 to move downward, prompting the lower ends of the two groups of connecting rods 24 to move downward, so that the two groups of sealing plates 25 are tightly sealed on the side of the guide rod 13, and as the anode is consumed, the sealing plate 25 is closed more tightly during the process of moving the guide rod 13 downward.

[0034] When replacing the anode, open the gas collecting hood 12 and move the guide rod 13 upward. At this time, the two groups of sealing plates 25 are unfolded under the control of the elastic member 26. When the guide rod 13 moves to a suitable height, it only needs to be moved horizontally to the outside of the electrolytic cell 1 to disengage from the connecting fork 22. At this time, under the contraction of the spring inside the elastic pull rod 23, the connecting fork 22 moves up to a stable height. Then, the guide rod 13 of the anode is hoisted to this height and moved horizontally, so that the connecting fork 22 can be re-stuck between the two groups of limit plates 130. At this time, only the guide rod 13 needs to be lowered to make the two groups of sealing plates 25 close again.

[0035] Reference Figure 3 In one embodiment, two groups of positioning columns 120 facing the accommodating groove 15 are provided on the end surface of the air collecting hood 12, and a group of positioning holes 250 are respectively provided on the side surfaces of the two groups of sealing plates 25. After closing, the two groups of positioning holes 250 on the two groups of sealing plates 25 are opposite to the two groups of positioning columns 120, so that the fixed positions on the air collecting hood 12 can be inserted and locked in the two groups of positioning holes 250, which can realize the positioning and fixing of the upper end of the air collecting hood 12 and the limiting of the two groups of sealing plates 25 at the same time.

[0036] In addition, refer to Figure 1 A shell breaking device 31 is also provided at the top center of the electrolytic cell 1, and the lower end of the shell breaking device 31 extends into the inside of the electrolytic cell 1 for shell breaking; at this time, the guide column 20 is a hollow structure with upper and lower ends connected, and a dust suction device 30 is also provided on the top of the electrolytic cell 1, and the dust suction device 30 is connected to the top of the guide column 20. During the anode replacement process, the shell breaking device 31 must be used to remove the hard shell on the inner surface of the electrolytic cell 1, and the dust generated during the process can be sucked away by the dust suction device 30.

[0037] In addition, in one embodiment, insulation bricks 10 are stacked on the side walls of the shell of the electrolytic cell 1, and the insulation bricks 10 are supported and fixed by a bracket 11 arranged on the side of the electrolytic cell 1; in addition, insulation bags covering the gas collecting hood 12 are laid on the outer wall of the electrolytic cell 1 to reduce the seepage of smoke and heat along the gap around the gas collecting hood 12; through the above arrangement, the insulation effect can be enhanced.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrolytic cell sealing and heat preservation device, characterized in that: It comprises two sets of sealing plates arranged on both sides of the containing tank, and the two sets of sealing plates are slidably connected to the top of the electrolytic tank, so that the two sets of sealing plates can be relatively expanded / closed; grooves matching the profile of the suspension rod are provided on the opposite surfaces of the two sets of sealing plates, so that the two sets of sealing plates after closing can seal the gap between the guide rod and the containing tank; elastic parts connected to the sealing plates are also provided on the top of the electrolytic tank, so that the two sets of sealing plates can be expanded; An upper and lower set of limit plates are provided on the rod wall of the guide rod in the electrolytic cell, a set of guide columns are erected on the inner wall of the electrolytic cell, a set of sliders are slidably provided on the guide columns, and a connecting fork is provided on the sliders which is inserted on the rod wall of the guide rod between the two sets of limit plates; a set of connecting rods are hinged at the lower ends of the two sealing plates, a set of elastic pull rods are connected to the lower ends of the two sets of connecting rods, and the lower ends of the elastic pull rods are provided on the connecting forks to drive the opening and closing of the two sets of sealing plates by lifting and lowering the guide rods.

2. The electrolytic cell sealing and heat preservation device according to claim 1, characterized in that: The sealing plate is defined as having a first end face and a second end face opposite to each other, and the first end faces of the two sets of sealing plates are arranged opposite to each other; the elastic member is at least one set of tension springs connected between the second end face of the sealing plate and the top of the electrolytic cell on the same side.

3. The electrolytic cell sealing and heat preservation device according to claim 2, characterized in that: A plurality of groups of tension springs are arranged between the second end surface of the sealing plate and the top of the electrolytic cell on the same side, and the plurality of groups of tension springs are evenly spaced.

4. The electrolytic cell sealing and heat preservation device according to claim 2 or 3, characterized in that: The elastic pull rod comprises two groups of telescopically connected rod sections and springs arranged inside the two groups of rod sections, and two ends of the spring are respectively connected to the inner wall of one group of rod sections.

5. The electrolytic cell sealing and heat preservation device according to claim 1, characterized in that: Gas collecting hoods are detachably arranged on both sides of the electrolytic cell, and two groups of positioning columns facing the accommodating tank are arranged on the end face of the gas collecting hoods. A group of positioning holes are respectively arranged on the sides of the two groups of sealing plates, and the two groups of positioning holes on the two groups of sealing plates after closing are opposite to the two groups of positioning columns, so that the positioning positions on the gas collecting hood can be inserted into and locked in the two groups of positioning holes.

6. The electrolytic cell sealing and heat preservation device according to claim 1, characterized in that: Two groups of avoidance grooves are also provided on the top of the electrolytic cell, which are arranged on both sides of the accommodating tank relatively and are both connected to the accommodating tank; a connecting shaft parallel to the length direction of the accommodating tank is provided on the inner wall of each group of avoidance grooves, and the upper ends of the two groups of connecting rods are respectively sleeved on a group of connecting shafts.

7. The electrolytic cell sealing and heat preservation device according to claim 1, characterized in that: A shell breaking device is also arranged at the top center of the electrolytic cell, and the lower end of the shell breaking device extends into the interior of the electrolytic cell for shell breaking.

8. The electrolytic cell sealing and heat preservation device according to claim 7, characterized in that: The guide column is a hollow structure with both ends connected. A dust suction device is also provided on the top of the electrolytic cell, and the dust suction device is connected to the top of the guide column.

9. The electrolytic cell sealing and heat preservation device according to claim 1, characterized in that: It also includes insulation bricks stacked on the side wall of the tank shell of the electrolytic tank, and the insulation bricks are supported and fixed by a bracket arranged beside the electrolytic tank.

10. The electrolytic cell sealing and heat preservation device according to claim 1, characterized in that: The outer wall of the electrolytic cell is also paved with a heat-insulating cloth bag covering the gas collecting hood to reduce the seepage of smoke and heat along the gap around the gas collecting hood.

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