Molten aluminum purification device based on air bricks

Abstract

The utility model relates to the technical field of molten aluminum purification equipment, and discloses a molten aluminum purification device based on an air brick, the molten aluminum purification device comprises a purification box and the air brick mounted at the bottom of the purification box, the air brick is connected with an air supply pipe, and the bottom of the purification box is provided with a mounting groove for mounting the air brick; an annular edge is arranged at the bottom of the purification box, the mounting groove is located in an inner cavity in the annular edge, and an abutting assembly is detachably arranged on the annular edge and used for abutting the air bricks against the mounting groove. The air brick can be conveniently mounted and replaced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of molten aluminum purification equipment, and in particular to a molten aluminum purification device based on a gas permeable brick. BACKGROUND

[0002] Molten aluminum usually contains a certain amount of gas, such as hydrogen, oxygen, etc., and inclusions, which, if not removed, will form blisters and pores in the aluminum ingot, seriously affecting the quality of the product. The gas permeable brick blows inert gas (such as nitrogen or argon) into the molten aluminum, causing gas bubbles to form in the molten aluminum and rise. These bubbles will combine with the gas and inclusions in the molten aluminum during the rising process, forming large bubbles and being discharged into the atmosphere, thereby achieving the purpose of purifying the molten aluminum.

[0003] The patent application file with the application number 201410572519.7 discloses an online gas removal device for molten aluminum, which comprises a box body, a heat preservation cover arranged on the box body, a gas permeable brick installed at the bottom of the box body, and a gas supply pipeline connected to the gas permeable brick. After the molten aluminum enters the box body, the gas permeable brick supplies gas to the box body, which can bring the impurities in the molten aluminum to the surface of the molten aluminum, thereby facilitating the removal of impurities.

[0004] The gas permeable brick in the above-mentioned scheme is mainly bonded and fixed to the bottom of the box body by concrete or other means. Under the influence of thermal stress, mechanical stress, chemical corrosion and other factors, the performance of the gas permeable brick may decrease after a period of use, and it needs to be replaced. The gas permeable brick is installed on the bottom of the box body by bonding, which is more troublesome to replace. Content of the utility model

[0005] In order to facilitate the installation and replacement of the gas permeable brick, the present application provides a molten aluminum purification device based on a gas permeable brick.

[0006] The present application adopts the following technical scheme:

[0007] A molten aluminum purification device based on a gas permeable brick, comprising a purification box and a gas permeable brick installed at the bottom of the purification box, a gas supply pipe being connected to the gas permeable brick, and an installation groove for installing the gas permeable brick being formed at the bottom of the purification box; a ring along is arranged at the bottom of the purification box, the installation groove is located in the inner cavity of the ring along, and a contact assembly is detachably arranged on the ring along, the contact assembly being used for abutting the gas permeable brick against the installation groove.

[0008] By adopting the above-mentioned technical scheme, the gas permeable brick is installed in the installation groove, and then the gas permeable brick is abutted against the installation groove by the contact assembly, so as to fix the gas permeable brick. When the gas permeable brick needs to be replaced, the positioning effect of the contact assembly on the gas permeable brick is achieved, so that the installation and disassembly of the gas permeable brick are both convenient.

[0009] Optionally, the abutting component comprises a connecting disc connected to the ring edge, an abutting disc, and an abutting piece arranged on the connecting disc and driving the abutting disc to abut against the air brick, the connecting disc and the abutting disc are both provided with a through hole for the gas supply pipe to pass through.

[0010] By adopting the above technical scheme, the connecting disc is installed on the ring edge, and the abutting disc is driven by the abutting piece to abut against the air brick, so as to position the air brick; when the air brick needs to be disassembled, the connecting disc can be removed.

[0011] Optionally, the connecting disc is provided with a connecting edge, the connecting edge and the connecting disc are coaxially arranged, and the connecting edge is screw-connected to the outer wall of the ring edge.

[0012] By adopting the above technical scheme, the connecting edge can be screw-connected with the ring edge, so that the installation and disassembly of the connecting disc are both convenient, and the staff can conveniently install and disassemble the air brick.

[0013] Optionally, the abutting piece comprises an abutting rod screw-connected to the connecting disc, a plurality of abutting rods are arranged along the circumference of the connecting disc, and one end of the abutting rod can abut against the abutting disc.

[0014] By adopting the above technical scheme, the abutting rod is screw-connected to the connecting disc and is arranged in plurality along the circumference, the end of the abutting rod is driven to abut against the abutting disc by adjusting the abutting rod, so that the abutting disc abuts against the air brick and positions the air brick.

[0015] Optionally, the edge portion of the abutting disc can abut against the bottom of the purification tank, and at least two sealing rings are arranged on the abutting disc, the sealing rings are coaxially arranged, one of the sealing rings abuts against the bottom of the purification tank, and the other of the sealing rings abuts against the air brick.

[0016] By adopting the above technical scheme, the sealing rings abut against the purification tank and the air brick respectively, so as to improve the air tightness between the air brick and the purification tank and reduce the loss of gas.

[0017] Optionally, the ring edge is provided with a ring groove, the inner wall of the ring edge is provided with an opening communicating with the ring groove, an air bag is installed in the ring groove, and an extrusion piece is installed on the ring edge; when the connecting disc is installed on the ring edge, the extrusion piece drives the air bag to extend out of the opening and abut against the side wall of the abutting disc.

[0018] By adopting the above technical scheme, the air bag is installed in the ring groove, when the abutting disc abuts against the air brick, the connecting disc is installed on the ring edge, so that the air bag is driven to deform by the extrusion piece and abuts against the side wall of the abutting disc, thereby further improving the sealing property between the abutting disc and the ring edge.

[0019] Optionally, the extruding member comprises an extruding ring slidingly arranged in the annular groove, and a penetrating rod arranged on the extruding ring, the penetrating rod slidingly penetrating through the annular rim and extending out of the end of the annular rim, when the connecting disc is mounted on the annular rim, the penetrating rod can be pushed to slide and extrude the air bag through the extruding ring.

[0020] By using the above technical scheme, the connecting disc pushes the penetrating rod to slide, thereby driving the extruding ring to move, and the extruding ring extrudes the air bag, so that the air bag extends out of the opening and abuts against the side wall of the abutting disc, thereby improving the air tightness between the air bag and the abutting disc.

[0021] Optionally, the extruding member comprises an extruding ring slidingly arranged in the annular groove, and a penetrating rod arranged on the extruding ring, the penetrating rod slidingly penetrating through the annular rim and extending out of the end of the annular rim, when the connecting disc is mounted on the annular rim, the penetrating rod can be pushed to slide and extrude the air bag through the extruding ring.

[0022] In summary, the present application has at least one of the following beneficial effects:

[0023] 1. The air brick is mounted in the mounting groove through the abutting assembly, and when disassembly is needed, the abutting assembly is dismounted from the annular rim, so that the mounting and dismounting of the air brick are both convenient;

[0024] 2. The abutting rod is made to abut against the abutting disc, thereby realizing the effect that the abutting disc abuts against the air brick. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic view of an embodiment of the present application;

[0026] Figure 2 is a cross-sectional schematic view of an embodiment of the present application;

[0027] Figure 3 is Figure 2 is an enlarged schematic view of A in FIG. 6.

[0028] Marked 1 is a purification tank; 2 is an air brick; 3 is a gas supply pipe; 4 is a mounting groove; 5 is an annular rim; 6 is an abutting assembly; 61 is a connecting disc; 62 is an abutting disc; 63 is an abutting member; 7 is a connecting rim; 8 is a penetrating hole; 9 is a sealing ring; 10 is an annular groove; 11 is an opening; 12 is an extruding member; 121 is an extruding ring; 122 is a penetrating rod; 13 is an air bag; and 14 is an arc groove. DETAILED DESCRIPTION

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] The present application discloses an aluminum liquid purification device based on an air brick. Referring toFigure 1 The molten aluminum purifying device comprises a purifying box 1 and a gas permeable brick 2 installed at the bottom of the purifying box 1, and a plurality of the gas permeable bricks 2 can be arranged at the bottom of the purifying box 1. A gas supply pipe 3 is installed on the gas permeable brick 2, and the gas supply pipe 3 is connected with an external gas source, which can be an inert gas such as nitrogen. After the molten aluminum is fed into the purifying box 1, the gas permeable brick 2 supplies gas to the molten aluminum, thereby purifying the molten aluminum.

[0031] With reference to Figure 2 and Figure 3 , the bottom of the purifying box 1 is provided with a mounting groove 4, and the gas permeable brick 2 has a circular table shape with a small upper part and a large lower part. The structure of the mounting groove 4 is matched with the shape of the gas permeable brick 2, so that the gas permeable brick 2 can be abutted in the mounting groove 4 from bottom to top. The bottom of the purifying box 1 is provided with a ring flange 5, and the ring flange 5 and the mounting groove 4 are one-to-one corresponding. The ring flange 5 and the mounting groove 4 are coaxially arranged, and the diameter of the ring flange 5 is larger than the diameter of the mounting groove 4. A resisting assembly 6 is detachably installed on the ring flange 5. When the gas permeable brick 2 is installed in the mounting groove 4, the resisting assembly 6 is abutted to the gas permeable brick 2, thereby fixing the gas permeable brick 2.

[0032] The resisting assembly 6 comprises a connecting disc 61, a resisting disc 62 and a resisting piece 63 installed on the connecting disc 61. The resisting piece 63 is used to drive the resisting disc 62 to abut the bottom of the gas permeable brick 2, thereby positioning the gas permeable brick 2 in the mounting groove 4. The connecting disc 61 has a disc shape, and a connecting flange 7 is integrally fixed at the edge of the connecting disc 61. The connecting flange 7 and the connecting disc 61 are coaxially arranged. The inner wall of the connecting flange 7 and the outer wall of the ring flange 5 are provided with threads, and the connecting flange 7 can be threadedly connected to the outer wall of the ring flange 5, thereby installing the connecting disc 61 on the ring flange 5.

[0033] Perforations 8 are formed in the resisting disc 62 and the connecting disc 61. When the resisting assembly 6 is installed, the gas supply pipe 3 can pass through the perforations 8. A sealing ring is bonded to the inner wall of the perforation 8 on the resisting disc 62, thereby improving the sealing between the gas supply pipe 3 and the perforation 8. The resisting disc 62 is located in the inner cavity of the ring flange 5. The resisting piece 63 comprises a resisting rod which is threadedly connected to the connecting disc 61. The resisting rod is uniformly provided with a plurality of resisting rods along the circumference of the connecting disc 61, which can be two, three, four or the like. By rotating the resisting rod, the end of the resisting rod is abutted to the lower surface of the resisting disc 62, thereby abutting the gas permeable brick 2 to the mounting groove 4 through the resisting disc 62.

[0034] The diameter of the abutting disc 62 is greater than the diameter of the lower end of the mounting groove 4, so that the abutting disc 62 can completely cover the mounting groove 4. At least two sealing rings 9 are mounted on the abutting disc 62, and the two sealing rings 9 and the abutting disc 62 are coaxially arranged, wherein the diameter of one of the sealing rings 9 is greater than the diameter of the mounting groove 4, so that the sealing ring 9 can abut against the bottom of the purification box 1; the diameter of the other sealing ring 9 is less than the diameter of the mounting groove 4, so that the sealing ring 9 abuts against the bottom of the air brick 2, thereby improving the air tightness between the air brick 2 and the purification box 1.

[0035] With reference to Figure 2 and Figure 3 In a further embodiment, a ring groove 10 is formed in the ring rim 5, an opening 11 is formed in the inner wall of the ring rim 5 and communicates with the ring groove 10, and the opening 11 corresponds to the position of the side wall of the abutting disc 62. An air bag 13 is mounted in the ring groove 10, and a pressing member 12 is mounted in the ring groove 10. When the connecting disc 61 is mounted on the ring rim 5, the pressing member 12 can be triggered to press the air bag 13, so that the deformed part of the air bag 13 extends out of the opening 11 and abuts against the side wall of the abutting disc 62, further improving the air tightness between the abutting disc 62 and the ring rim 5. In order to improve the abutting effect of the air bag 13 and the abutting disc 62, an arc groove 14 is formed in the side wall of the abutting disc 62, the arc groove 14 extends along the circumferential direction of the abutting disc 62, and the air bag 13 abuts in the arc groove 14.

[0036] The pressing member 12 includes a pressing ring 121 arranged in the ring groove 10 and a penetrating rod 122 fixed on the pressing ring 121. The penetrating rod 122 is provided with a plurality of penetrating rods, for example, three or four penetrating rods arranged uniformly along the circumferential direction, and the penetrating rod 122 is slidably arranged through the ring rim 5 and protrudes out of the ring rim 5 away from the bottom of the purification box 1. When the connecting disc 61 is mounted on the ring rim 5, the penetrating rod 122 can be pushed to slide, so that the pressing ring 121 can press the air bag 13. When the connecting disc 61 is removed, the air bag 13 is reset and the pressing ring 121 is reset under the elastic force of the air bag 13.

[0037] The implementation principle of the aluminum liquid purification device based on the air brick 2 is that the air brick 2 is mounted in the mounting groove 4, the connecting disc 61 is connected to the ring rim 5, and the position of the abutting rod is adjusted so that the abutting rod abuts against the bottom of the abutting disc 62, thereby positioning the air brick 2.

[0038] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so that: any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A gas purging device for molten aluminium based on a gas purging brick, characterised in that: The utility model provides a kind of air purification device, including purification tank (1) and the air brick (2) installed in the bottom of the purification tank (1), air supply pipe (3) is connected on the air brick (2), the bottom of the purification tank (1) is equipped with the installation groove (4) for installing the air brick (2);The bottom of the purification tank (1) is provided with ring flange (5), the installation groove (4) is located in the inner cavity of the ring flange (5), the ring flange (5) is detachably provided with the abutting component (6), and the abutting component (6) is used to abut the air brick (2) to the installation groove (4).

2. A purifying device for molten aluminum based on a gas permeable brick according to claim 1, characterized in that: The abutting component (6) includes a connecting disc (61) connected to the ring flange (5), an abutting disc (62), and an abutting member (63) disposed on the connecting disc (61) and driving the abutting disc (62) to abut the air brick (2), the connecting disc (61) and the abutting disc (62) are both provided with a through hole (8) for the air supply pipe (3) to pass through.

3. A purifying device for molten aluminum based on a gas permeable pad according to claim 2, characterized in that: The connecting disc (61) is provided with a connecting flange (7), the connecting flange (7) and the connecting disc (61) are coaxially arranged, and the connecting flange (7) is threadedly connected to the outer wall of the ring flange (5).

4. A purifying device for molten aluminum based on a gas permeable pad according to claim 3, characterized in that: The abutting member (63) includes an abutting rod threadedly connected to the connecting disc (61), the abutting rod is spaced apart along the circumference of the connecting disc (61), and one end of the abutting rod can abut the abutting disc (62).

5. A purifying device for molten aluminum based on a gas permeable pad according to claim 3, characterized in that: The edge portion of the abutting disc (62) can abut the bottom of the purification tank (1), and at least two sealing rings (9) are provided on the abutting disc (62), the sealing rings (9) are coaxially arranged, one of the sealing rings (9) abuts the bottom of the purification tank (1), and the other sealing ring (9) abuts the air brick (2).

6. A purifying device for molten aluminum based on a gas permeable pad according to claim 5, characterized in that: The ring flange (5) is provided with a ring groove (10), and the inner wall of the ring flange (5) is provided with an opening (11) communicating with the ring groove (10), an air bag (13) is installed in the ring groove (10), and a pressing member (12) is installed on the ring flange (5), when the connecting disc (61) is installed on the ring flange (5), the pressing member (12) drives the air bag (13) to extend out of the opening (11) and abut the side wall of the abutting disc (62).

7. A gas purging device for molten aluminium based on a gas purging pad according to claim 6, characterised in that: The pressing member (12) includes a pressing ring (121) slidingly arranged in the ring groove (10), and a penetrating rod (122) arranged on the pressing ring (121), the penetrating rod (122) slidingly penetrates the ring flange (5) and extends out of the end of the ring flange (5), when the connecting disc (61) is installed on the ring flange (5), the penetrating rod (122) can be pushed to slide and press the air bag (13) through the pressing ring (121).

8. A purifying device for molten aluminum based on a gas permeable pad according to claim 7, characterized in that: An arc groove (14) is provided on the abutting disc (62) for the air bag (13) to abut.

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