Flue gas sealing structure of electrolytic bath

Abstract

The utility model discloses an electrolytic bath flue gas sealing structure which comprises a composite sealing frame, a composite sealing strip, a horizontal cover plate and an anode guide rod, the composite sealing frame is clamped on the outer side of the anode guide rod, the composite sealing frame is of a U-shaped structure, the composite sealing strip is of a linear structure, and the horizontal cover plate is clamped on the outer side of the anode guide rod. The composite sealing frame and the composite sealing strip are provided with a plurality of trapezoidal inclined planes, and the combined composite sealing frame and composite sealing strip form a trapezoidal inclined plane square frame. The sealing sleeve and the filling core are made of high-temperature-resistant and corrosion-resistant flexible composite materials, and the square frame type sealing structure and the magnetic suction structure are combined, so that the sealing device can effectively adapt to high-temperature flue gas corrosion, thermal expansion and mechanical vibration in the operation of the electrolytic cell, and the long-term sealing performance is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrolytic cell technical field especially relates to a kind of electrolytic cell flue gas sealing structure. BACKGROUND

[0002] Currently, electrolytic cell will produce a large amount of harmful gas in the aluminum electrolysis production process, need be handled through flue gas collection system, simultaneously, electrolytic cell horizontal cover and guide rod gap can be sealed by sealing structure.

[0003] Among them, by searching, the patent with the announcement number CN116988106A discloses a kind of sealing device of electrolytic cell anode guide rod and horizontal cover plate, the above-mentioned patent realizes the function of sealing between anode guide rod and horizontal cover plate with the structure scheme of sealing assembly, but since sealing assembly can only seal three sides of anode guide rod and horizontal cover plate, leading to the poor sealing effect between anode guide rod and horizontal cover plate;And the patent with the announcement number CN220265871U discloses aluminum electrolytic cell anode rod heat insulation structure, the above-mentioned patent realizes the function of sealing frame combination with the structure scheme of magic tape, but since magic tape is easily damaged under the high temperature condition of electrolytic cell, affects the sealing between anode guide rod and horizontal cover plate of sealing structure.

[0004] Therefore, in order to industry technology progress, better realize the sealing function between electrolytic cell anode guide rod and horizontal cover plate, improve core technology competitiveness, the present application proposes a new implementation scheme different from the sealing structure and application mode in prior art. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem that the prior art sealing assembly can only seal three sides of anode guide rod and horizontal cover plate, leading to the poor sealing effect between anode guide rod and horizontal cover plate, and proposes a kind of electrolytic cell flue gas sealing structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A kind of electrolytic cell flue gas sealing structure, including composite sealing frame, composite sealing strip, horizontal cover plate and anode guide rod, composite sealing frame is clamped in the outside of anode guide rod, the composite sealing frame is the shape of U structure, composite sealing strip is a character shape structure, and multiple trapezoidal inclined surfaces are formed on composite sealing frame and composite sealing strip, the composite sealing frame and composite sealing strip after combination form a trapezoidal outward inclined surface square frame, the bottom of composite sealing frame is clamped with multiple lower iron sheets, the both ends of composite sealing frame are embedded with first magnetic sheet, one side of composite sealing strip is embedded with two second magnetic sheets, second magnetic sheet is attracted to first magnetic sheet, both ends of one side of composite sealing strip are equipped with recess, both sides of composite sealing frame are fixedly connected with lug, and lug is clamped with recess.

[0008] Further, the composite sealing frame comprises a first filling core, and the composite sealing strip comprises a second filling core.

[0009] Further, an outer wall of the first filling core is sleeved with a first sealing sleeve, and an outer side of the second filling core is sleeved with a second sealing sleeve.

[0010] Further, the first sealing sleeve and the second sealing sleeve are both ceramic fiber cloth sleeves.

[0011] Further, the first filling core and the second filling core are both ceramic fiber felt filling cores.

[0012] Further, the top of the composite sealing strip is clamped with a sealing sheet.

[0013] The electrolytic cell flue gas sealing structure has the advantages that:

[0014] 1. By adopting the flexible composite material which is high-temperature-resistant and corrosion-resistant, combining the square frame type sealing structure and the magnetic attraction structure, the high-temperature flue gas corrosion, thermal expansion and mechanical vibration in the operation of the electrolytic cell can be effectively adapted, and the long-term sealing performance is ensured.

[0015] 2. The stability of the connection between the composite sealing frame and the composite sealing strip is enhanced by the clamping of the protruding blocks and the notches, and the sealing effect is improved.

[0016] 3. The design of the multiple iron sheets mounted at the bottom of the composite sealing frame facilitates the connection between the sealing structure and the horizontal cover plate of the electrolytic cell. Since the magnetic field of the electrolytic cell can automatically attract the lower iron sheets made of iron, the lower iron sheets are attracted to the sealing structure, and the sealing structure is tightly combined with the horizontal cover plate without external fixation. Meanwhile, the sealing structure can be automatically attracted at any position, which is convenient for people to operate and use. In this way, the sealing structure is different from the magic tape connection structure in the prior art. The magic tape will be burned off in a few days under high temperature, which is not convenient for the use of the electrolytic cell.

[0017] 4. The design of the trapezoidal structure at the top of the sealing structure is different from the square structure in the prior art. The trapezoidal structure is inclined outward, and the sealing effect is better. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 An installation and use state structure schematic view of the electrolytic cell flue gas sealing structure is provided for the utility model.

[0019] Figure 2 A bottom view structure schematic view of the composite sealing frame and the composite sealing strip in a separated state of the electrolytic cell flue gas sealing structure is provided for the utility model.

[0020] Figure 3 A perspective structure schematic view of the composite sealing frame and the composite sealing strip in a separated state of the electrolytic cell flue gas sealing structure is provided for the utility model.

[0021] Figure 4 A composite sealing frame and a composite sealing strip separation state side sectional view structure schematic diagram of the electrolytic cell flue gas sealing structure are provided.

[0022] In the figure: 1, composite sealing frame; 101, first sealing sleeve; 102, first filling core; 2, composite sealing strip; 201, second sealing sleeve; 202, second filling core; 3, horizontal cover plate; 4, anode guide rod; 5, first magnetic sheet; 6, second magnetic sheet; 7, sealing sheet; 8, notch; 9, protrusion; 10, lower iron sheet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0024] Reference Figures 1-4 A kind of electrolytic cell flue gas sealing structure, including composite sealing frame 1, composite sealing strip 2, horizontal cover plate 3 and anode guide rod 4;

[0025] Composite sealing frame 1 is the structure of U, composite sealing strip 2 is the structure of a character, and composite sealing frame 1 and composite sealing strip 2 all have multiple trapezoidal inclined plane, and composite sealing frame 1 and composite sealing strip 2 after combination form a trapezoidal inclined plane square frame, anode guide rod 4 is inserted in trapezoidal inclined plane frame inside, and square frame sealing effect is formed by connection, to prevent flue gas leakage;

[0026] The bottom of composite sealing frame 1 is clamped with multiple lower iron sheets 10, in the embodiment, lower iron sheet 10 can select square iron sheet or rectangular iron sheet with side length of 1-2 centimeters, horizontal cover plate 3 is steel plate magnetized under electrolytic strong magnetic field, generates magnetism, lower iron sheet 10 is attracted to the top of horizontal cover plate 3, in prior art, because horizontal cover plate 3 is in high temperature for long time, its surface will become uneven, if large iron sheet is used, when horizontal cover plate 3 is concave-convex to a large extent, then it will occur to separate phenomenon, using small iron sheet can ensure that adsorption is tight, long-term sealing performance.

[0027] Specifically, both ends of one side of composite sealing strip 2 are provided with notches 8, both sides of composite sealing frame 1 are integrally formed with protrusions 9, the protrusions 9 are clamped with the notches 8, so that the composite sealing frame 1 and the composite sealing strip 2 are connected, both ends of the composite sealing frame 1 are embedded with first magnetic sheets 5, one side of the composite sealing strip 2 is embedded with two second magnetic sheets 6, the second magnetic sheets 6 are attracted to the first magnetic sheets 5, so as to enhance the stability of the connection between the composite sealing frame 1 and the composite sealing strip 2, the top of the composite sealing strip 2 is clamped with a sealing sheet 7, so as to seal between the composite sealing frame 1 and the composite sealing strip 2;

[0028] The composite sealing frame 1 comprises a first filling core 102, and an outer wall of the first filling core 102 is sleeved with a first sealing sleeve 101; the composite sealing strip 2 comprises a second filling core 202, and an outer side of the second filling core 202 is sleeved with a second sealing sleeve 201; the first sealing sleeve 101 and the second sealing sleeve 201 are both sealing sleeves sewn by ceramic fiber cloth, the ceramic fiber cloth is made into a trapezoidal cross-section appearance shape into a y-shape and a one-shape, forms a flexible sealing material sleeve, the ceramic fiber cloth structure is compact, and the air permeability is poor, thereby effectively preventing gas and liquid leakage, and the strength is high, the wear resistance is good, and a higher pressure and temperature can be borne;

[0029] The first filling core 102 and the second filling core 202 are both filling cores filled by ceramic fiber felt, and the ceramic fiber felt is filled in the y-shape and one-shape sealing sleeve; the ceramic fiber felt is good in flexibility, easy to bend and fit various shapes of electrolytic cells.

[0030] The working principle of the embodiment is as follows: in use, first, the composite sealing frame 1 is fixedly installed on the top of the horizontal cover plate 3 by using the attraction between the lower iron sheet 10 and the horizontal cover plate 3, and the composite sealing frame 1 is clamped on the outer side of the anode guide rod 4; then the composite sealing strip 2 is installed on the composite sealing frame 1 by using the attraction between the first magnetic sheet 5 and the second magnetic sheet 6, so that the composite sealing frame 1 and the composite sealing strip 2 are installed in the position between the upper surface of the horizontal cover plate 3 and the gap of the anode guide rod 4 of the electrolytic cell, and the composite sealing frame 1 and the composite sealing strip 2 are combined to form a square frame structure, thereby forming a square frame sealing effect, preventing smoke leakage, and the clamping of the protrusion 9 and the notch 8 enhances the stability of the connection between the composite sealing frame 1 and the composite sealing strip 2.

[0031] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model makes equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. A sealing structure for the fumes of an electrolytic cell, comprising a composite sealing frame (1), a composite sealing strip (2), a horizontal cover plate (3) and an anode guide rod (4), the composite sealing frame (1) being clamped to the outer side of the anode guide rod (4), characterized in that, The composite sealing frame (1) is a concave structure, the composite sealing strip (2) is a character-shaped structure, and the composite sealing frame (1) and the composite sealing strip (2) are provided with a plurality of trapezoidal inclined surfaces, the combined composite sealing frame (1) and the composite sealing strip (2) form a trapezoidal inclined surface square frame, the bottom of the composite sealing frame (1) is clamped with a plurality of lower iron sheets (10), the two ends of the composite sealing frame (1) are embedded with first magnetic sheets (5), one side of the composite sealing strip (2) is embedded with two second magnetic sheets (6), the second magnetic sheets (6) are attracted to the first magnetic sheets (5), the two ends of one side of the composite sealing strip (2) are provided with notches (8), and the two sides of the composite sealing frame (1) are fixedly connected with protrusions (9), the protrusions (9) are clamped with the notches (8).

2. A seal for a cell gas according to claim 1, wherein The composite sealing frame (1) comprises a first filling core (102), and the composite sealing strip (2) comprises a second filling core (202).

3. A seal for a cell gas according to claim 2, wherein The outer wall of the first filling core (102) is sleeved with a first sealing sleeve (101), and the outer side of the second filling core (202) is sleeved with a second sealing sleeve (201).

4. A seal for a cell gas according to claim 3, wherein The first sealing sleeve (101) and the second sealing sleeve (201) are both ceramic fiber cloth sleeves.

5. A seal for a cell gas according to claim 2, wherein The first filling core (102) and the second filling core (202) are both ceramic fiber felt filling cores.

6. A seal for a cell gas according to claim 1, wherein The top of the composite sealing strip (2) is clamped with a sealing sheet (7).

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