Degassing device for aluminum cast-rolling front box

Abstract

The utility model discloses a degassing device for an aluminum cast-rolling front box, which comprises a box body, and a shaft sleeve is arranged in the middle of the top surface of the box body. According to the utility model, molten aluminum is added into the box body through the feeding hole, then an external gas conveying pipe is inserted into the gas inlet pipe on the hollow column, inert gas is introduced into the branch pipe through the gas inlet pipe, and then the inert gas is sprayed out through the branch pipe, so that the inert gas can be in contact with the molten aluminum in the box body, and hydrogen in the molten aluminum can be discharged; a motor on one side of the top surface of the box body is turned on, the motor drives a second gear to rotate, and the second gear drives a first gear on a hollow column to rotate while rotating, so that a stirring rod on the hollow column rotates, and the molten aluminum in the box body can be automatically stirred; and the liquidity of the molten aluminum in the box body is improved, so that the molten aluminum can be in full contact with inert gas, and the purification effect on the molten aluminum is conveniently improved.

Description

Technical Field

[0001] This utility model relates to the field of degassing technology in aluminum casting and rolling, and in particular to a degassing device for the front box of aluminum casting and rolling. Background Technology

[0002] The degree of purification of the aluminum melt before it is cast and rolled directly affects the quality of the processed aluminum products. Hydrogen embrittlement will occur when the hydrogen content in aluminum is only about 0.1 ml / 100g, and excessively high hydrogen content will cause great harm in subsequent deep processing. Therefore, the purification degree of aluminum melt is very important, and the purification method of aluminum melt becomes particularly important.

[0003] The existing Chinese patent with publication number CN213739623U discloses an aluminum casting and rolling degassing box. The above-mentioned prior art has the following defects: The above-mentioned technical solution can realize the periodic cleaning of impurities on the surface of the diffuse permeable brick, which helps to ensure the degassing efficiency of the device. However, in the above-mentioned technical solution, the aluminum liquid is in a static state when degassing the aluminum liquid, and the aluminum liquid cannot be made to flow. This can easily cause the problem of uneven contact between the aluminum liquid and the inert gas, thereby easily reducing the purification and degassing effect of the aluminum liquid. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a degassing device for an aluminum casting and rolling pre-box, which has the advantages of increasing the fluidity of molten aluminum, enabling it to fully contact inert gases, and achieving good purification and degassing effects, thereby solving the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a degassing device for an aluminum casting and rolling pre-box, comprising a box body, a bushing located at the middle of the top surface of the box body, a hollow column passing through the bushing, a stirring rod located on the outer surface of the hollow column inside the box body, an air inlet pipe located inside the hollow column, a branch pipe passing through the hollow column on the outer surface of the air inlet pipe, a gas delivery pipe passing through the top surface of the hollow column, and the gas delivery pipe extending to the air inlet on the air inlet pipe, a motor mounted on one side of the top surface of the box body, and a second gear fixedly connected to the output end of the motor. The second gear meshes with the first gear set on the outer surface of the hollow column. A feed inlet is provided on one side of the top surface of the box. A filter box is provided below the box. A connecting rod is fixedly connected to the bottom surface of the hollow column through the top surface of the filter box. A filter screen is provided inside the filter box. Connecting blocks are provided on both sides above the filter screen on the connecting rod, and a stirring block is provided on the bottom surface of the connecting blocks. Connecting pipes are provided on both sides of the bottom surface of the box, and one end of the connecting pipe extends into the interior of the filter box. A first valve is installed on the connecting pipe. An exhaust pipe is provided on one side of the top surface of the box.

[0008] Preferably, heating plates are fixedly installed on both sides of the inner wall of the filter box above the filter screen, and a discharge pipe is provided on the front surface of the filter box, and a second valve is installed on the discharge pipe.

[0009] Preferably, there are multiple branch pipes, and the multiple branch pipes are evenly distributed on the outer surface of the intake pipe.

[0010] Preferably, the outer surface of the box is provided with support legs, and there are multiple support legs, which are evenly distributed around the outer surface of the box. The support legs are fixedly welded to the box.

[0011] Preferably, there are multiple stirring blocks, and the multiple stirring blocks are evenly distributed on the bottom surface of the connecting block, and the stirring blocks are fixedly welded to the connecting block.

[0012] Preferably, the gas delivery pipe is movably connected to the hollow column.

[0013] Preferably, there are multiple stirring rods, which are evenly distributed on the outer surface of the hollow column, and the stirring rods are fixedly welded to the hollow column.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a degassing device for the front box of aluminum casting and rolling mill, which has the following beneficial effects:

[0016] (1) In this utility model, aluminum liquid is added into the box through the feed port, and then the external gas supply pipe is inserted into the air inlet pipe on the hollow column. Inert gas is introduced into the branch pipe through the air inlet pipe and then sprayed out through the branch pipe, so that the inert gas can come into contact with the aluminum liquid in the box, and the hydrogen in the aluminum liquid can be discharged, so that the hydrogen is separated from the aluminum liquid. In this way, by turning on the motor on one side of the top surface of the box, the motor drives the second gear to rotate. At the same time, the second gear rotates and drives the first gear on the hollow column to rotate, so that the stirring rod on the hollow column rotates, which can automatically stir the aluminum liquid in the box, increase the fluidity of the aluminum liquid in the box, and make the aluminum liquid fully contact the inert gas, thereby improving the purification effect of the aluminum liquid.

[0017] (2) In this utility model, by opening the first valve on the connecting pipe, the aluminum liquid in the box is discharged into the filter box. By using the filter screen in the filter box, the purified aluminum liquid in the filter box can be filtered to remove impurities. The hollow column rotates while driving the connecting rod to rotate, causing the connecting block on the connecting rod to rotate. The rotating connecting block drives the stirring block to rotate, which stirs the aluminum liquid on the filter screen and prevents the aluminum liquid from accumulating on the filter screen. By opening the heating plates on both sides of the inner wall of the filter box, the aluminum liquid in the filter box can be heated to prevent the aluminum liquid from solidifying in the filter box, thus facilitating normal filtration. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a degassing device for an aluminum casting and rolling mill front box proposed in this utility model;

[0020] Figure 2 This is an enlarged view (A) of a degassing device for an aluminum casting and rolling mill front box proposed in this utility model;

[0021] Figure 3 This is a front view of a degassing device for an aluminum casting and rolling mill front box proposed in this utility model;

[0022] Figure 4 This is a schematic diagram of the hollow column structure of a degassing device for an aluminum casting and rolling mill front box proposed in this utility model.

[0023] Legend:

[0024] 1. Housing; 2. Feed inlet; 3. First gear; 4. Hollow column; 5. Air inlet pipe; 6. Second gear; 7. Motor; 8. Exhaust pipe; 9. Stirring rod; 10. Connecting pipe; 11. First valve; 12. Support leg; 13. Connecting block; 14. Stirring block; 15. Connecting rod; 16. Filter box; 17. Heating plate; 18. Filter screen; 19. Branch pipe; 20. Second valve; 21. Discharge pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] Please refer to Figure 1-4A degassing device for an aluminum casting and rolling preheating chamber includes a chamber body 1. A bushing is located at the center of the top surface of the chamber body 1, and a hollow column 4 passes through the bushing. A stirring rod 9 is located on the outer surface of the hollow column 4 inside the chamber body 1. An air inlet pipe 5 is located inside the hollow column 4, and a branch pipe 19 passes through the hollow column 4 on the outer surface of the air inlet pipe 5. An air supply pipe passes through the top surface of the hollow column 4 and extends to an air inlet on the air inlet pipe 5. A motor 7 is installed on one side of the top surface of the chamber body 1. The output end of 7 is fixedly connected to a second gear 6, which meshes with a first gear 3 set on the outer surface of the hollow column 4. A feed inlet 2 is provided on one side of the top surface of the housing 1. A filter box 16 is located below the housing 1. A connecting rod 15 is fixedly connected to the bottom surface of the hollow column 4, penetrating the top surface of the filter box 16. A filter screen 18 is provided inside the filter box 16. Connecting blocks 13 are provided on both sides of the connecting rod 15 above the filter screen 18, and stirring blocks 14 are provided on the bottom surface of the connecting blocks 13. The bottom surface of the body 1 is provided with connecting pipes 10 on both sides, and one end of the connecting pipe 10 extends into the interior of the filter box 16. A first valve 11 is installed on the connecting pipe 10. An exhaust pipe 8 is provided on one side of the top surface of the body 1. Aluminum liquid is added into the body 1 through the feed port 2. Then, the external gas supply pipe is inserted into the air inlet pipe 5 on the hollow column 4. Inert gas is introduced into the branch pipe 19 through the air inlet pipe 5 and then sprayed out through the branch pipe 19, so that the inert gas can come into contact with the aluminum liquid in the body 1, and the hydrogen in the aluminum liquid can be discharged, so that the hydrogen is separated from the aluminum liquid. The motor 7 on one side of the top surface of the body 1 is turned on. The motor 7 drives the second gear 6 to rotate. The rotation of the second gear 6 drives the first gear 3 on the hollow column 4 to rotate, so that the stirring rod 9 on the hollow column 4 rotates, which can automatically stir the aluminum liquid in the body 1, increase the fluidity of the aluminum liquid in the body 1, and make the aluminum liquid fully contact the inert gas, thereby improving the purification effect of the aluminum liquid.

[0028] In one embodiment, heating plates 17 are fixedly installed on both sides of the inner wall of the filter box 16 above the filter screen 18. A discharge pipe 21 is provided on the front surface of the filter box 16, and a second valve 20 is installed on the discharge pipe 21. The use of heating plates 17 can heat the aluminum liquid in the filter box 16 to prevent the aluminum liquid from solidifying in the filter box 16, thereby facilitating normal filtration.

[0029] In one embodiment, multiple branch pipes 19 are provided, and the multiple branch pipes 19 are evenly distributed on the outer surface of the air inlet pipe 5. The inert gas sprayed out through the multiple branch pipes 19 can make the aluminum liquid in the box 1 fully contact with the inert gas, thereby improving the purification effect of the aluminum liquid.

[0030] In one embodiment, the outer surface of the housing 1 is provided with support legs 12. There are multiple support legs 12, and the multiple support legs 12 are evenly distributed around the outer surface of the housing 1. The support legs 12 are fixedly welded to the housing 1. The support legs 12 support the housing 1, which helps to improve the stability of the housing 1.

[0031] In one embodiment, multiple stirring blocks 14 are provided, and the multiple stirring blocks 14 are evenly distributed on the bottom surface of the connecting block 13. The stirring blocks 14 are fixedly welded to the connecting block 13. When the hollow column 4 rotates, it drives the connecting rod 15 to rotate, so that the connecting block 13 on the connecting rod 15 rotates. When the connecting block 13 rotates, it drives the stirring blocks 14 to rotate, which can stir the aluminum liquid on the filter screen 18, prevent the aluminum liquid from accumulating on the filter screen 18, and facilitate the improvement of the filtration effect of the aluminum liquid.

[0032] In one embodiment, the gas delivery pipe is movably connected to the hollow column 4, which can maintain the normal rotation of the hollow column 4.

[0033] In one embodiment, multiple stirring rods 9 are provided, and the multiple stirring rods 9 are evenly distributed on the outer surface of the hollow column 4. The stirring rods 9 are fixedly welded to the hollow column 4. By using multiple stirring rods 9, the aluminum liquid in the box 1 can be stirred, increasing the fluidity of the aluminum liquid in the box 1, so that the aluminum liquid can fully contact the inert gas, thereby facilitating the improvement of the purification effect of the aluminum liquid.

[0034] In one embodiment, the control circuit of the control panel can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0035] Working principle:

[0036] In operation, molten aluminum is added to the chamber 1 through inlet 2. An external gas supply pipe is then inserted into the inlet pipe 5 on the hollow column 4. Inert gas is introduced through inlet pipe 5 into branch pipe 19, and then ejected through branch pipe 19, allowing the inert gas to contact the molten aluminum in the chamber 1. This removes hydrogen from the molten aluminum, separating it from the aluminum. By activating motor 7 on one side of the top surface of chamber 1, motor 7 drives the second gear 6 to rotate. Simultaneously, the rotation of the second gear 6 drives the first gear 3 on the hollow column 4, causing the stirring rod 9 on the hollow column 4 to rotate. This automatically stirs the molten aluminum in chamber 1, increasing its fluidity and ensuring sufficient contact between the molten aluminum and the inert gas, thus improving the purification effect. By opening the first valve 11 on the connecting pipe 10, the molten aluminum in the housing 1 is discharged into the filter box 16. The purified molten aluminum in the filter box 16 can be filtered by using the filter screen 18 in the filter box 16, which can filter out impurities in the molten aluminum. The hollow column 4 rotates while driving the connecting rod 15 to rotate, which causes the connecting block 13 on the connecting rod 15 to rotate. The rotating connecting block 13 drives the stirring block 14 to rotate, which can stir the molten aluminum on the filter screen 18 and prevent the molten aluminum from accumulating on the filter screen 18. The heating plates 17 on both sides of the inner wall of the filter box 16 are opened to heat the molten aluminum in the filter box 16, preventing the molten aluminum from solidifying in the filter box 16, thus facilitating normal filtration.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A degassing device for an aluminum casting and rolling mill pre-box, comprising a box body (1), characterized in that, A bushing is provided at the middle position of the top surface of the box (1), and a hollow column (4) is provided through the bushing. A stirring rod (9) is provided on the outer surface of the hollow column (4) inside the box (1). An air inlet pipe (5) is provided inside the hollow column (4), and a branch pipe (19) is provided through the hollow column (4) on the outer surface of the air inlet pipe (5). An air supply pipe is provided through the top surface of the hollow column (4), and the air supply pipe extends to the air inlet on the air inlet pipe (5). A motor (7) is installed on one side of the top surface of the box (1), and a second gear (6) is fixedly connected to the output end of the motor (7). The second gear (6) meshes with a first gear (3) provided on the outer surface of the hollow column (4). A feed inlet (2) is provided on one side of the top surface of the box (1). A filter box (16) is provided below the box (1). A connecting rod (15) is fixedly connected to the bottom surface of the hollow column (4) through the top surface of the filter box (16). A filter screen (18) is provided inside the filter box (16). A connecting block (13) is provided on both sides above the filter screen (18) on the connecting rod (15). A stirring block (14) is provided on the bottom surface of the connecting block (13). A connecting pipe (10) is provided on both sides of the bottom surface of the box (1). One end of the connecting pipe (10) extends into the interior of the filter box (16). A first valve (11) is installed on the connecting pipe (10). An exhaust pipe (8) is provided on one side of the top surface of the box (1).

2. The degassing device for an aluminum casting and rolling mill preheating box according to claim 1, characterized in that, Heating plates (17) are fixedly installed on both sides of the inner wall of the filter box (16) above the filter screen (18). A discharge pipe (21) is provided on the front surface of the filter box (16), and a second valve (20) is installed on the discharge pipe (21).

3. The degassing device for an aluminum casting and rolling mill preheating box according to claim 1, characterized in that, There are multiple branch pipes (19), and the multiple branch pipes (19) are evenly distributed on the outer surface of the air intake pipe (5).

4. The degassing device for an aluminum casting and rolling mill preheating box according to claim 1, characterized in that, The outer surface of the box (1) is provided with support legs (12), and there are multiple support legs (12) evenly distributed around the outer surface of the box (1). The support legs (12) are fixedly welded to the box (1).

5. A degassing device for an aluminum casting and rolling mill pre-box according to claim 1, characterized in that, There are multiple stirring blocks (14), and the multiple stirring blocks (14) are evenly distributed on the bottom surface of the connecting block (13). The stirring blocks (14) and the connecting block (13) are fixedly welded.

6. The degassing device for an aluminum casting and rolling mill preheating box according to claim 1, characterized in that, The gas delivery pipe is movably connected to the hollow column (4).

7. The degassing device for an aluminum casting and rolling mill preheating box according to claim 1, characterized in that, The stirring rods (9) are provided in multiple ways, and the multiple stirring rods (9) are evenly distributed on the outer surface of the hollow column (4). The stirring rods (9) are fixedly welded to the hollow column (4).

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