Structure for enhancing insulation protection lining building of electrolytic cell

Abstract

The utility model discloses a structure for enhancing building of an insulation protection lining of an electrolytic bath, which comprises a heat insulation plate, a cathode group steel bar and an electrolytic bath shell window baffle plate, and the electrolytic bath shell window baffle plate is adhered and fixed in the heat insulation plate and is symmetrically distributed relative to the middle position of the heat insulation plate; and the cathode group steel bar is fixedly connected to the baffle plate of the cell shell window of the electrolytic cell. The utility model belongs to the technical field of electrolytic baths, and particularly relates to a structure for building a lining for enhancing insulation protection of an electrolytic bath, which solves the problems that the current efficiency of the operation of an aluminum electrolytic bath is reduced and a bath cover plate is easy to deform and damage.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic cells, and in particular relates to a structure for reinforcing the insulation protection lining of an electrolytic cell. Background Art

[0002] Aluminum electrolytic cells are important equipment for aluminum production. New or overhauled cells must be lined. Currently, most electrolytic aluminum manufacturers use in-cell welding for steel bar welding in the lining process. The welding method uses a masonry cavity and pre-supported arc-starting plates for full-section automatic fusion welding. The cell shell window baffle is made of steel. The following problems may occur during the baking start-up:

[0003] (1) During the power-on startup process, due to the large current, the steel baffle plate becomes a conductive channel between the cathode steel rod and the tank shell, causing the tank shell to be charged, which in turn causes leakage through the tank cover plate, horizontal cover plate, and anode guide rod, reducing the current efficiency of the aluminum electrolytic cell;

[0004] (2) After the power-on startup process, arcing may occur between the slot cover plate and the slot edge plate, or between the steel chisel and the slot shell during the production operation. This not only poses an obvious safety risk, but also easily causes the slot cover plate to deform and break, increasing the maintenance workload of the slot cover plate. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the current efficiency of the aluminum electrolytic cell is reduced and the cell cover plate is easily deformed and damaged.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a structure for enhancing the insulation and protective lining of the electrolytic cell, including an insulation board, a cathode group steel rod and an electrolytic cell shell window baffle. The electrolytic cell shell window baffle is pasted and fixed in the insulation board, and is symmetrically distributed relative to the middle position of the insulation board. The cathode group steel rod is fixedly connected to the electrolytic cell shell window baffle.

[0007] Furthermore, the cathode group steel rods are connected to the window baffle of the electrolytic cell shell through bolts, nuts and washers.

[0008] Furthermore, the electrolytic cell shell window baffle is fixed in the insulation board by mica powder asbestos wool putty.

[0009] Furthermore, the window baffle of the electrolytic cell shell is arranged in a ∩ shape, and the cathode group steel rod is arranged at the top of the window baffle of the electrolytic cell shell.

[0010] Furthermore, the insulation board is a hydrophobic vermiculite insulation board.

[0011] Furthermore, the window baffle of the electrolytic cell shell is made of high-temperature resistant mica material.

[0012] Furthermore, the insulation board is arranged in an M shape.

[0013] After adopting the above structure, the beneficial effects of the utility model are as follows:

[0014] (1) The electrolytic cell shell window baffle made of high-temperature resistant mica material can effectively solve the problem of redness and sparking of the window after power is turned on due to the overlap of the steel window with the steel rod and the cell shell;

[0015] (2) The shape and material setting of the insulation board effectively increase the insulation performance between the steel rod and the tank shell, and also improve the resistance to electrolyte corrosion;

[0016] (3) By changing the material and masonry structure, the arcing phenomenon between the trough cover plate and the trough edge plate, and between the steel drill and the trough shell during operation is avoided, which reduces the production safety risk to a certain extent and avoids the power loss caused by arcing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of a structure for enhancing the insulation protection lining of an electrolytic cell proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the electrolytic cell shell window baffle structure for enhancing the insulation protection lining of the electrolytic cell proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the insulation board structure for enhancing the insulation protection lining of the electrolytic cell proposed by the utility model.

[0021] In the attached drawings: 1. Insulation board, 2. Cathode group steel rod, 3. Electrolytic cell shell window baffle. DETAILED DESCRIPTION

[0022] like Figure 1 As shown, a structure for enhancing the insulation protection lining of an electrolytic cell comprises an insulation board 1, a cathode group steel rod 2 and an electrolytic cell shell window baffle 3.

[0023] like Figure 1As shown, in order to solve the problems of reduced current efficiency and deformation and damage of the cell cover plate during operation of the aluminum electrolytic cell, the electrolytic cell shell window baffle 3 is glued and fixed in the insulation board 1, and is symmetrically distributed relative to the middle position of the insulation board 1. The cathode group steel rod 2 is fixedly connected to the electrolytic cell shell window baffle 3, and the electrolytic cell shell window baffle 3 is arranged in a ∩ shape. The cathode group steel rod 2 is arranged at the top of the electrolytic cell shell window baffle 3. The insulation board 1 adopts a hydrophobic vermiculite insulation board 1, and the electrolytic cell shell window baffle 3 is made of high-temperature resistant mica material. The insulation board 1 is arranged in an M shape.

[0024] The cathode group steel rod 2 is connected to the electrolytic cell shell window baffle 3 through bolts, nuts and washers, and the electrolytic cell shell window baffle 3 is fixed in the insulation board 1 through mica powder asbestos wool putty.

[0025] During specific use, the electrolytic cell shell window baffle 3 made of high-temperature resistant mica material can effectively solve the problem of redness and sparking of the window after power is turned on due to the overlap of the steel window with the steel rod and the cell shell. The M-shaped insulation board 1 and its material setting can increase the insulation and heat preservation performance between the steel rod and the cell shell, and also improve the resistance to electrolyte corrosion. Through the changes in the above materials and masonry structures, arcing between the cell cover plate and the cell edge plate, and between the steel bar and the cell shell during operation is avoided, which reduces the production safety risk to a certain extent and avoids electricity loss caused by arcing.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by the present invention and, without departing from the purpose of the present invention, design structures and embodiments similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A structure for enhancing the insulation and protective lining of an electrolytic cell, characterized by: It includes an insulation board, a cathode group steel rod and an electrolytic cell shell window baffle. The electrolytic cell shell window baffle is pasted and fixed in the insulation board and is symmetrically distributed relative to the middle of the insulation board. The cathode group steel rod is fixedly connected to the electrolytic cell shell window baffle.

2. The structure for enhancing the insulation protection lining of an electrolytic cell according to claim 1, characterized in that: The cathode group steel rods are connected to the window baffle of the electrolytic cell shell through bolts, nuts and washers.

3. The structure for enhancing the insulation protection lining of an electrolytic cell according to claim 1, characterized in that: The electrolytic cell shell window baffle is fixed in the insulation board by mica powder asbestos wool putty.

4. The structure for enhancing the insulation protection lining of an electrolytic cell according to claim 1, characterized in that: The electrolytic cell shell window baffle is arranged in a ∩ shape, and the cathode group steel rod is arranged on the top of the electrolytic cell shell window baffle.

5. The structure for enhancing the insulation protection lining of an electrolytic cell according to claim 4, characterized in that: The thermal insulation board is a hydrophobic vermiculite thermal insulation board.

6. The structure for enhancing the insulation protection lining of an electrolytic cell according to claim 5, characterized in that: The electrolytic cell shell window baffle is made of high-temperature resistant mica material.

7. The structure for enhancing the insulation protection lining of an electrolytic cell according to claim 6, characterized in that: The heat preservation plate is arranged in an M shape.

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