Device for measuring molten aluminum in electrolytic cell by using up-measuring method

Abstract

The utility model relates to the field of molten aluminum measurement, in particular to an upper measurement method measuring device for molten aluminum in an electrolytic bath, which comprises a crust breaking hammer head and a measuring drill rod, a fixed pipe is sleeved on the measuring drill rod, the upper end of the fixed pipe is fixedly connected to the left end of a horizontal rod, the fixed pipe and the horizontal rod are arranged in an L shape, and a vertical rod is fixedly connected to the right end of the horizontal rod. The horizontal rod and the vertical rod are arranged in an L shape, a lantern ring is arranged at the top end of the vertical rod and arranged on a hanging pin in a sleeving mode, the hanging pin is fixedly connected to the crust breaking hammer, and an insulation device is fixedly connected to the hanging pin. According to the utility model, molten aluminum is measured by adopting an up-measuring method, so that the influence of furnace bottom factors is reduced; the device can be fixed at a fixed point and vertically enters the electrolysis by means of the self-arranged structure and self weight, manual positioning is not needed, and manual measurement errors are reduced; the accuracy of measurement data of molten aluminum in the electrolytic cell is improved, the aluminum yield of the electrolytic cell is truly reflected, and data support is provided for technical condition management of the electrolytic cell.

Description

Technical Field

[0001] The utility model relates to the field of aluminum liquid measurement, in particular to an aluminum liquid upper measurement device for an electrolytic cell. Background Art

[0002] The height of aluminum liquid is an important factor affecting the thermal balance of the electrolytic cell, and the impact is reflected in the shape of the furnace and the cleanliness of the furnace bottom. When the aluminum liquid is high, there is more heat in the conduction tank, which will cause the furnace temperature to drop, the furnace bottom becomes cold, and aluminum oxide precipitation and crusting will form, which will deteriorate the condition of the furnace bottom, increase thermal resistance, and reduce the heat passing through the furnace bottom, thereby increasing the heat dissipation on the side, and eventually leading to a deformed furnace with thinner side troughs and longer lower legs; when the aluminum liquid is low, the heating area is close to the furnace bottom, and the furnace bottom temperature is high. Although the furnace bottom is clean, the furnace is too large, the aluminum liquid surface is large, and the horizontal current density in the aluminum liquid is large. Under the action of the magnetic field, a strong electromagnetic force is generated, which accelerates the movement of aluminum liquid and causes a large swing in the tank voltage; when it is too low, aluminum rolling may even occur, and then it will evolve into a seriously sick tank.

[0003] At present, the measurement of molten aluminum adopts the bottom measurement method, that is, at the aluminum outlet of the electrolytic cell, one end of the drill with the drill head and the handle at an angle of 135 degrees is inserted into the bottom of the furnace, the handle is kept horizontal, and after standing for 5 seconds, the measuring drill is taken out and placed on a relatively flat ground, and the height of the molten aluminum is read at the boundary line of the molten aluminum-electrolyte (which can be observed with the naked eye) and the total height line; however, since the bottom of the electrolytic cell is generally deformed or the cathode surface is damaged and local pits are formed due to precipitation and suction at the aluminum outlet, and the interface between the molten aluminum and the electrolyte in the cell is also bent due to the influence of the magnetic field, the main problems of the existing bottom measurement method are: the bottom measurement method has no fixed measurement point, and the measurement error is large due to changes in personnel, angles or different cell types (curved cathodes), and it cannot truly reflect the aluminum production of the electrolytic cell, so it cannot be used for technical condition management and determination of aluminum output. Utility Model Content

[0004] The purpose of the utility model is to provide a device for measuring aluminum liquid in an electrolytic cell by an upper measurement method, so as to solve the problem that the lower measurement method mentioned in the background technology has no fixed measuring point, and the measurement error is large due to changes in personnel, angles or different cell types (curved cathodes), and cannot truly reflect the aluminum production of the electrolytic cell.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model discloses a measuring device for measuring aluminum liquid in an electrolytic cell by an upper measuring method, comprising a shelling hammer head and a measuring chisel, wherein a fixing tube is sleeved on the measuring chisel, the upper end of the fixing tube is fixedly connected to the left end of a horizontal rod, the fixing tube and the horizontal rod are arranged in an L shape, the right end of the horizontal rod is fixedly connected to a vertical rod, the horizontal rod and the vertical rod are arranged in an L shape, a sleeve ring is arranged on the top end of the vertical rod, the sleeve ring is sleeved on a hanging pin, the hanging pin is fixedly connected to the shelling hammer head, an insulating device is arranged between the sleeve ring and the hanging pin, and the insulating device is fixedly connected to the hanging pin.

[0007] Furthermore, a fixing bolt is threadedly connected to the fixing pipe, and a threaded end of the fixing bolt abuts against the measuring brazing rod.

[0008] Furthermore, a handle is provided on the vertical rod.

[0009] Furthermore, the insulating device is an insulating tube.

[0010] Furthermore, a retaining screw is provided on the collar, and a threaded end of the retaining screw is vertically pressed against an outer wall of the insulating device.

[0011] Furthermore, the center line of the measuring drill and the center line of the shell breaking hammer are on the same straight line.

[0012] Compared with the prior art, the beneficial technical effects of the utility model are:

[0013] The utility model adopts the upper measurement method to measure the aluminum liquid, which reduces the influence of furnace bottom factors; the device can be fixed at a fixed point and enter the electrolysis vertically by relying on its own setting structure and deadweight, without manual positioning, thus reducing manual measurement errors; the accuracy of the aluminum liquid measurement data of the electrolytic cell is improved, truly reflecting the aluminum production of the electrolytic cell, and providing data support for the technical condition management of the electrolytic cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the structure of the measuring device for the aluminum liquid upper measurement method of the electrolytic cell of the utility model;

[0016] Figure 2 It is a schematic diagram of the use of the measuring device of the utility model for the aluminum liquid upper measurement method in the electrolytic cell.

[0017] Explanation of the reference numerals: 1. Measuring chisel; 2. Fixing tube; 3. Fixing bolt; 4. Horizontal rod; 5. Vertical rod; 6. Handle; 7. Ring; 8. Stop screw; 9. Insulating device; 10. Hanging pin; 11. Shell hammer head. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1 As shown, in this embodiment, a measuring device for measuring the aluminum liquid in an electrolytic cell is disclosed, including a shelling hammer 11, which is used to open the electrolyte shell surface (the crust formed after the surface temperature of the electrolyte liquid drops) to form holes, so as to facilitate the salvage of anode carbon slag, the insertion of the aluminum liquid suction pipe, the insertion of the aluminum level measurement chisel, the insertion of the quenching effect wooden stick, etc. The shelling hammer 11 corresponds to the center position of the aluminum outlet. The shelling hammer 11 belongs to the prior art. In this embodiment, it is mainly used to open the electrolyte crust to facilitate the measurement chisel 1 in the measuring device to enter the aluminum liquid.

[0020] It also includes a measuring chisel 1, which is sleeved with a fixed tube 2. The upper end of the fixed tube 2 is welded to the left end of the horizontal rod 4. The fixed tube 2 and the horizontal rod 5 are arranged in an L shape. The right end of the horizontal rod 4 is welded with a vertical rod 5. The horizontal rod 4 and the vertical rod 5 are arranged in an L shape. A collar 7 is welded to the top of the vertical rod 5. The collar 7 is sleeved on a hanging pin 10. The hanging pin 10 is fixedly connected to a shelling hammer head 11. An insulating device 9 is arranged between the collar 7 and the hanging pin 10 to ensure that the measuring device of the aluminum liquid upper measurement method of the electrolytic cell is insulated from the shelling hammer head 11. The insulating device 9 is fixedly connected to the hanging pin 10.

[0021] In this embodiment, a fixing bolt 3 is threadedly connected to the fixing pipe 2 , and a threaded end of the fixing bolt 3 abuts against the measuring drill 1 , and the extending length of the measuring drill 1 is adjusted by the fixing bolt 3 .

[0022] In this embodiment, a handle 6 is provided on the vertical rod 5 to facilitate the measurement of the aluminum liquid in the electrolytic cell.

[0023] Installation and use.

[0024] In this embodiment, the insulating device 9 is an insulating tube.

[0025] In this embodiment, a locking screw 8 is threadedly connected to the collar 7, and the threaded end of the locking screw 8 is vertically pressed against the outer wall of the insulating device 9, thereby fixing the electrolytic cell aluminum liquid top measurement method measuring device as a whole.

[0026] In this embodiment, the center line of the measuring drill 1 and the center line of the shell-breaking hammer 11 are on the same straight line, ensuring that the measuring drill 1 is exactly at the center of the aluminum outlet.

[0027] The use process of the utility model is as follows:

[0028] like Figure 2As shown, when measuring the aluminum liquid in the electrolytic cell, first use the shell hammer 11 to break the electrolyte crust, then adjust the measuring rod 1 to a suitable length, hold the handle 6 to hang the measuring device of the aluminum liquid in the electrolytic cell on the hanging pin 10 on the shell hammer through the ring 7, tighten the stop screw 8, fix the measuring device of the aluminum liquid in the electrolytic cell, ensure that the measuring rod 1 is perpendicular to the lead liquid surface, and ensure that the center line of the measuring rod 1 and the center line of the shell hammer 11 are on the same straight line; after standing for 5 seconds, take out the measuring device of the aluminum liquid in the electrolytic cell, and use a steel ruler to measure the distance between the liquid surface junction on the measuring rod 1 and the fixed tube 3, which is recorded as X3. The calculation formula of the aluminum liquid height H is:

[0029] H={X-(X1+X2)}-X3

[0030] Where: X is the distance from the lower surface of the horizontal cover plate of the electrolytic cell to the upper surface of the cathode (fixed value);

[0031] X1 is the distance from the lower surface of the horizontal cover plate of the electrolytic cell to the center of the hanging pin (fixed value);

[0032] X2 is the distance between the center of the hanging pin and the lower end of the fixed pipe (fixed value);

[0033] X3 is the distance (variable value) between the center of the hanging pin and the lower end of the fixed tube and the boundary line between aluminum water and electrolyte.

[0034] Since the distances of X, X1, and X2 in the formula can be fixed according to the cell type, cathode elevation of the lining overhaul, etc., {X-(X1+X2)} is a fixed value, and the height H of the aluminum liquid in the electrolytic cell is only related to the change value X3.

[0035] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for measuring aluminum liquid in an electrolytic cell by a top-measurement method, comprising a shell-breaking hammer head (11), characterized in that: The measuring drill (1) further comprises a measuring drill (1), wherein a fixing tube (2) is sleeved on the measuring drill (1), wherein the upper end of the fixing tube (2) is fixedly connected to the left end of a horizontal rod (4), wherein the fixing tube (2) and the horizontal rod (4) are arranged in an L shape, wherein the right end of the horizontal rod (4) is fixedly connected to a vertical rod (5), wherein the horizontal rod (4) and the vertical rod (5) are arranged in an L shape, wherein a collar (7) is arranged at the top end of the vertical rod (5), wherein the collar (7) is sleeved on a hanging pin (10), wherein the hanging pin (10) is fixedly connected to the shell-breaking hammer head (11), wherein an insulating device (9) is arranged between the collar (7) and the hanging pin (10), wherein the insulating device (9) is fixedly connected to the hanging pin (10).

2. The electrolytic cell aluminum liquid upper measurement method measuring device according to claim 1 is characterized in that: A fixing bolt (3) is threadedly connected to the fixing pipe (2), and a threaded end of the fixing bolt (3) abuts against the measuring brazing rod (1).

3. The electrolytic cell aluminum liquid upper measurement method measuring device according to claim 1 is characterized in that: The vertical rod (5) is provided with a handle (6).

4. The electrolytic cell aluminum liquid upper measurement method measuring device according to claim 1, characterized in that: The insulating device (9) is an insulating tube.

5. The electrolytic cell aluminum liquid upper measurement method measuring device according to claim 1, characterized in that: A stop screw (8) is provided on the collar (7), and a threaded end of the stop screw (8) is vertically pressed against an outer wall of the insulating device (9).

6. The electrolytic cell aluminum liquid upper measurement method measuring device according to claim 1, characterized in that: The center line of the measuring chisel (1) and the center line of the shell-breaking hammer (11) are on the same straight line.

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