CN216729457U - Molten aluminum buffer device - Google Patents
Molten aluminum buffer device Download PDFInfo
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- CN216729457U CN216729457U CN202220039510.XU CN202220039510U CN216729457U CN 216729457 U CN216729457 U CN 216729457U CN 202220039510 U CN202220039510 U CN 202220039510U CN 216729457 U CN216729457 U CN 216729457U
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Abstract
The utility model discloses an aluminum liquid buffer device which comprises a heat-preservation outer cylinder and a graphite crucible which is arranged in the heat-preservation outer cylinder in a split manner; the heat-insulating outer barrel comprises a shell and a heat-insulating cover buckled with the shell, a heat-insulating layer is fixed on the inner wall of the shell, a heat-insulating layer is paved on the heat-insulating layer at the bottom of the shell, a heating coil pipe which is vertically arranged is arranged above the heat-insulating layer, a graphite crucible is separately arranged in the heating coil pipe and is in movable contact with the top surface of the heat-insulating layer, and a conduction opening communicated with the outside of the shell is vertically and downwards formed in the top surface of the heat-insulating layer; the graphite crucible comprises a pot body and a sliding nozzle, wherein the bottom of the pot body is provided with a discharge hole opposite to the conduction port, the sliding nozzle is arranged on the discharge hole in a split mode and fixedly connected with the discharge hole, and an outlet of the sliding nozzle penetrates through the conduction port and extends to the outer side of the shell. The advantages are that: under the cooperation of the annular gasket, the sliding nozzle, the second sealing material and the third sealing material, the bottom wall of the graphite crucible is effectively protected, and the service life of the graphite crucible is prolonged.
Description
The technical field is as follows:
the utility model relates to the technical field of aluminum oxide, in particular to an aluminum liquid buffer device.
Background art:
the basic procedures of alumina production comprise a melting procedure, an aluminum foil procedure, a hydrolysis procedure, a screening procedure, a dehydration procedure and a drying and roasting procedure, and specifically, a high-purity aluminum ingot is melted in an intermediate frequency furnace of the melting procedure to form liquid aluminum, then the aluminum liquid enters the aluminum foil procedure, the aluminum liquid is converted into the aluminum foil in the aluminum foil procedure, and the aluminum foil is placed in the hydrolysis procedure because of being thin, thereby being beneficial to the rapid implementation of the hydrolysis reaction and improving the efficiency of the hydrolysis reaction.
Because the intermediate frequency furnace discharge capacity of the melting process is larger, but the discharge capacity of the aluminum foil process is smaller, an aluminum liquid buffer tank is arranged in the aluminum foil process and used for transferring and supplying aluminum liquid, the conventional aluminum liquid buffer tank comprises a graphite crucible and a heat insulation layer fixed on the outer side of the graphite crucible, and a discharge spout is fixedly arranged at the bottom of the graphite crucible, and because the temperature of the aluminum liquid is higher than 600 ℃, the discharge spout of the graphite crucible is just arranged above a gas nozzle of the aluminum foil process, and gas contacts with the bottom wall of the graphite crucible along the discharge spout, the discharge spout and the bottom wall around the discharge spout are easily oxidized and damaged, the replacement cost is increased, and the production delay is realized; when the aluminum liquid is directly poured into the aluminum liquid buffer tank by the intermediate frequency furnace, the aluminum liquid splashing phenomenon is easy to occur, and the intermediate frequency furnace has certain danger and wastes the aluminum liquid; when the existing aluminum liquid buffer tank is used, the heat preservation effect is poor due to the heat preservation layer, the temperature of the aluminum liquid passing through the aluminum liquid buffer tank can be reduced, and the flowing of the aluminum liquid and the production of subsequent processes are not facilitated.
The utility model has the following contents:
the utility model aims to provide an aluminum liquid buffer device.
The utility model is implemented by the following technical scheme: the aluminum liquid buffer device comprises a heat-preservation outer cylinder and a graphite crucible which is arranged in the heat-preservation outer cylinder in a split manner;
the heat-insulation outer barrel comprises a shell and a heat-insulation cover buckled with the shell, a heat-insulation layer is fixed on the inner wall of the shell, a heat-insulation layer is paved on the heat-insulation layer at the bottom of the shell, a heating coil pipe is vertically arranged above the heat-insulation layer, the graphite crucible is separately arranged in the heating coil pipe and is movably contacted with the top surface of the heat-insulation layer, and a conduction port communicated with the outside of the shell is vertically and downwards formed in the top surface of the heat-insulation layer;
the graphite crucible includes the pot body, swift current mouth, the bottom of the pot body seted up with the discharge gate that the conduction opening set up relatively, the components of a whole that can function independently is provided with on the discharge gate swift current mouth, swift current mouth with discharge gate fixed connection, the export of swift current mouth runs through the conduction opening extends to the outside of casing.
Further, the top fixedly connected with annular supporting plate of casing, the one end of heat preservation lid with annular supporting plate is articulated, the other end of heat preservation lid with annular supporting plate swing joint, the fixed support that is equipped with on annular supporting plate's the top surface, hang on the support and be equipped with the guide plate, the bottom of guide plate is arranged in the pot is internal.
Further, the heating coil is an electric heating coil.
Furthermore, a clamping groove is formed in the top end of the inner wall of the discharge hole along the periphery, the sliding nozzle is connected in the clamping groove in a clamping mode, and the sliding nozzle is fixedly bonded with the inner wall of the bottom end of the clamping groove through a first sealing material.
Furthermore, a groove is formed in the top end of the inner wall of the conduction opening along the periphery, the annular gasket is arranged in the groove, the inner diameter of the annular gasket is matched with the outer edge of the sliding nozzle, and the annular gasket is fixedly bonded with the inner wall of the bottom end of the groove through a second sealing material.
Furthermore, a third sealing material is clamped between the top surface of the annular gasket and the bottom end of the pot body.
The utility model has the advantages that: the device has simple structure, saves later economic cost and has high stability; under the matching action of the annular gasket, the spout, the second sealing material and the third sealing material, the bottom wall of the graphite crucible is effectively protected, the spout and the pot body are arranged in a split mode, the spout is damaged, only the spout needs to be replaced, the service life of the graphite crucible is prolonged, and the production efficiency is guaranteed; the guide plate is arranged on one side far away from the intermediate frequency furnace, the bottom of the guide plate is arranged in the pot body, the guide plate is made of graphite, the guide plate can effectively prevent aluminum liquid poured into the graphite crucible from splashing outwards, the guide plate has a guide effect, and the guide plate can be arranged on the annular support frame plate at the later stage under the matching of the annular support frame plate, so that the labor force for assembling and disassembling is saved; the graphite crucible and the heat-preservation outer cylinder are arranged in a split mode, so that the graphite crucible and the heat-preservation outer cylinder are convenient to replace, only the corresponding quartz crucible needs to be replaced, the heat-preservation outer cylinder does not need to be replaced, the cost is saved, heat preservation is performed on aluminum liquid in the graphite crucible under the cooperation of the heat-preservation layer, the heating coil and the heat-preservation layer, and the flowability of the aluminum liquid is guaranteed.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the utility model;
FIG. 2 is a schematic view showing the structure of a graphite crucible of the present invention;
FIG. 3 is a schematic structural view of the heat-insulating outer cylinder of the utility model;
FIG. 4 is an enlarged view of a portion of FIG. 1;
in the figure: the device comprises a graphite crucible 1, a pot body 11, a spout 12, a discharge port 13, an annular support plate 14, a support 15, a guide plate 16, a clamping groove 17, a first sealing material 18, a heat-insulating outer cylinder 2, a shell 21, a heat-insulating cover 22, a heat-insulating layer 23, a heat-insulating layer 24, a heating coil 25, a conduction opening 26, a groove 27, an annular gasket 28, a second sealing material 29 and a third sealing material 30.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, the aluminum liquid buffer device comprises a heat-preservation outer cylinder 2 and a graphite crucible 1 which is separately arranged in the heat-preservation outer cylinder 2;
the heat-insulating outer cylinder 2 comprises a shell 21 and a heat-insulating cover 22 buckled with the shell 21, the heat-insulating cover 22 is used for preventing the heat of the molten aluminum from diffusing outwards, a heat-insulating layer 23 is fixed on the inner wall of the shell 21, the heat-insulating layer 23 is specifically glass silk floss, a heat-insulating layer 24 is paved on the heat-insulating layer 23 at the bottom of the shell 21, the heat-insulating layer 24 is used for preventing the heat at the bottom of the graphite crucible 1 from diffusing outwards, a vertically-arranged heating coil 25 is arranged above the heat-insulating layer 24, the heating coil 25 is an electric heating coil 25, the heating coil 25 is used for further ensuring the temperature of the molten aluminum in the graphite crucible 1, the flow of the molten aluminum and the production of subsequent processes are ensured, the graphite crucible 1 is arranged in the heating coil 25 in a split manner and is movably contacted with the top surface of the heat-insulating layer 24, the graphite crucible 1 and the heat-insulating outer cylinder 2 are arranged in a split manner so as to be convenient to replace, only the corresponding graphite crucible 1 needs to be replaced, the heat-preservation outer cylinder 2 does not need to be replaced, so that the cost is saved; the top surface of the heat insulation layer 24 is vertically provided with a conduction opening 26 communicated with the outside of the shell 21 downwards, and the heat insulation layer 24, the heating coil 25 and the heat insulation layer 23 are matched to insulate the aluminum liquid in the graphite crucible 1, so that the fluidity of the aluminum liquid is ensured.
The graphite crucible 1 comprises a pot body 11 and a sliding nozzle 12, wherein a discharge hole 13 opposite to a conduction port 26 is formed in the bottom of the pot body 11, the sliding nozzle 12 is separately arranged on the discharge hole 13, the sliding nozzle 12 is fixedly connected with the discharge hole 13, an outlet of the sliding nozzle 12 penetrates through the conduction port 26 and extends to the outer side of a shell 21, and aluminum liquid is uniformly injected into an aluminum foil process through the sliding nozzle 12, so that smooth and stable flowing of the aluminum liquid is ensured.
Casing 21's top fixedly connected with annular support plate 14, the one end of heat preservation lid 22 is articulated with annular support plate 14, the other end and the 14 movable contact of annular support plate of heat preservation lid 22, the fixed support 15 that is equipped with on annular support plate 14's the top surface, it is equipped with guide plate 16 to hang on the support 15, in the time of practical use, one side of keeping away from the intermediate frequency furnace is arranged in to guide plate 16, the pot body 11 is arranged in to guide plate 16's bottom, guide plate 16's material is made for graphite, it outwards splashes to set up the aluminium liquid that guide plate 16 can effectively solve and fall into in graphite crucible 1, the effect that has the water conservancy diversion, under annular support plate 14's cooperation, annular support plate 14 can be arranged in all the time to later stage guide plate 16, the labour of dismouting has been saved.
The top end of the inner wall of the discharge port 13 is provided with a clamping groove 17 along the periphery, the inside of the clamping groove 17 is clamped with the spout 12, the spout 12 and the inner wall of the bottom end of the clamping groove 17 are fixedly bonded through a first sealing material 18 and can also be in threaded connection, the first sealing material 18 is used for sealing and fixing the spout 12 at the discharge port 13 of the pot body 11, the spout 12 is damaged, and the spout 12 can be pulled out of the pot body 11 by applying a certain pulling force, so that the replacement is convenient.
A groove 27 is formed in the top end of the inner wall of the conduction opening 26 along the periphery, an annular gasket 28 is arranged in the groove 27, the inner diameter of the annular gasket 28 is matched with the outer edge of the spout 12, the annular gasket 28 and the spout 12 are matched to block gas sprayed from a gas nozzle, so that the bottom of the graphite crucible 1 is effectively separated from the outside of the shell 21, the problem of oxidation of the bottom of the graphite crucible 1 caused by the fact that gas flow enters the shell 21 along the spout 12 is solved, the annular gasket 28 and the inner wall of the bottom end of the groove 27 are fixedly bonded through a second sealing material 29, the second sealing material 29 is used for sealing the space between the annular gasket 28 and the groove 27, and the problem that gas enters the bottom of the graphite crucible 1 from a gap is solved; meanwhile, the annular gasket 28 is cracked and damaged, and is convenient to replace. The third sealing material 30 is clamped between the top surface of the annular gasket 28 and the bottom end of the pot body 11, the third sealing material 30 is used for further preventing external high-pressure airflow from entering the bottom of the pot body 11 from the conduction opening 26, and under the matching action of the annular gasket 28, the spout 12, the second sealing material 29 and the third sealing material 30, the bottom wall of the graphite crucible 1 is effectively protected, the service life of the graphite crucible 1 is prolonged, and the production efficiency is guaranteed.
The first sealing material 18, the second sealing material 29 and the third sealing material 30 are specifically pastes formed by mixing aluminum dihydrogen phosphate and aluminum oxide, the pastes are directly coated on the surfaces of the components to seal and plug gaps among the components, meanwhile, aluminum oxide cannot pollute aluminum liquid, and the generation of impurities is reduced.
Instructions for use:
an annular gasket 28 is arranged in a groove 27 of the heat insulation layer 24, the annular gasket 28 is fixedly bonded in the groove 27 through a second sealing material 29, a third sealing material 30 is coated on the top surface of the annular gasket 28, the graphite crucible 1 is arranged in the heating coil 25, the bottom wall of the graphite crucible 1 is contacted with the third sealing material 30, and the graphite crucible 1 is arranged in the heat insulation outer cylinder 2;
the spout 12 is fixed in the clamping groove 17 through a first sealing material 18, and the outlet of the spout 12 extends to the outer side of the shell 21 through a conduction port 26 and is opposite to a cooling roller of an aluminum foil process;
the intermediate frequency furnace of the melting process pours the melted aluminum liquid into the graphite crucible 1 of the aluminum foil process, after the aluminum liquid completely enters the graphite crucible 1, the heat preservation cover 22 at the top of the shell 21 is covered, under the action of the heating coil 25, the heat preservation layer 23 and the heat preservation layer 24, the heat preservation is carried out on the aluminum liquid in the pot body 11, and meanwhile, the aluminum liquid in the pot body 11 enters the cooling roller of the aluminum foil process through the chute nozzle 12.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The aluminum liquid buffer device is characterized by comprising a heat-preservation outer cylinder and a graphite crucible which is arranged in the heat-preservation outer cylinder in a split manner;
the heat-insulation outer barrel comprises a shell and a heat-insulation cover buckled with the shell, a heat-insulation layer is fixed on the inner wall of the shell, a heat-insulation layer is paved on the heat-insulation layer at the bottom of the shell, a heating coil pipe which is vertically arranged is arranged above the heat-insulation layer, the graphite crucible is separately arranged in the heating coil pipe and is in movable contact with the top surface of the heat-insulation layer, and a conduction opening communicated with the outside of the shell is vertically and downwards formed in the top surface of the heat-insulation layer;
the graphite crucible includes the pot body, swift current mouth, the bottom of the pot body seted up with the discharge gate that the conduction opening set up relatively, the components of a whole that can function independently is provided with on the discharge gate swift current mouth, swift current mouth with discharge gate fixed connection, the export of swift current mouth runs through the conduction opening extends to the outside of casing.
2. The molten aluminum buffer device as claimed in claim 1, wherein an annular support plate is fixedly connected to the top end of the casing, one end of the heat-insulating cover is hinged to the annular support plate, the other end of the heat-insulating cover is in movable contact with the annular support plate, a support is fixedly arranged on the top surface of the annular support plate, a guide plate is hung on the support, and the bottom of the guide plate is arranged in the pot body.
3. The molten aluminum buffer device of claim 2, wherein the heating coil is an electric heating coil.
4. The molten aluminum buffering device as claimed in any one of claims 1 to 3, wherein a clamping groove is formed along the periphery of the top end of the inner wall of the discharge port, the sliding nozzle is clamped in the clamping groove, and the sliding nozzle is fixedly bonded with the inner wall of the bottom end of the clamping groove through a first sealing material.
5. The molten aluminum buffer device as claimed in claim 4, wherein a groove is formed in the top end of the inner wall of the conduction opening along the periphery, an annular gasket is arranged in the groove, the inner diameter of the annular gasket is matched with the outer edge of the sliding nozzle, and the annular gasket is fixedly bonded with the inner wall of the bottom end of the groove through a second sealing material.
6. The molten aluminum buffering device as defined in claim 5, wherein a third sealing material is clamped between the top surface of the annular gasket and the bottom end of the pot body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220039510.XU CN216729457U (en) | 2022-01-07 | 2022-01-07 | Molten aluminum buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220039510.XU CN216729457U (en) | 2022-01-07 | 2022-01-07 | Molten aluminum buffer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216729457U true CN216729457U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220039510.XU Active CN216729457U (en) | 2022-01-07 | 2022-01-07 | Molten aluminum buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216729457U (en) |
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2022
- 2022-01-07 CN CN202220039510.XU patent/CN216729457U/en active Active
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