Smelting device for processing aluminum ingot

Abstract

The application discloses a smelting device for aluminum ingot processing, which comprises a bottom plate, a smelting furnace and a flow tank, three supporting frames are arranged on the top outer wall of the bottom plate, two fixing rings are arranged on the outer wall of the smelting furnace, the smelting furnace is fixedly connected with the three supporting frames through the two fixing rings, the bottom plate is fixedly connected with the smelting furnace through the three supporting frames, and the smelting device further comprises a compensation mechanism which is arranged below the smelting furnace and comprises a connecting barrel and a plug head, a heat conduction column, a heat compensation ring and a guide rod which are arranged in the vertical direction in sequence, and the heat conduction column is fixedly connected with the heat compensation ring. Compared with the traditional manual periodic tightening operation of the top wire, when the plug head is worn, the heat compensation ring is heated and expanded to provide additional compression, the running of aluminum is effectively prevented within a certain range, and the sealing state can be maintained without manual intervention.

Description

Technical Field

[0001] This invention relates to the field of aluminum ingot processing technology, and in particular to a smelting apparatus for aluminum ingot processing. Background Technology

[0002] The core smelting equipment for aluminum ingot processing is the smelting furnace, whose main function is to remelt solid aluminum ingots or scrap aluminum into liquid and carry out alloying and refining. Depending on the heating method, it is mainly divided into fuel-fired smelting furnaces and electric heating smelting furnaces. Modern aluminum smelting processes are usually equipped with holding furnaces for settling and refining, as well as semi-continuous casting machines to finally cast the aluminum liquid into shape.

[0003] At the outlet of molten aluminum flowing from the smelting furnace to the flow channel, existing technologies generally employ a mechanical threaded set screw structure. This involves externally tightening a plug rod or plug to seal the furnace opening. However, under prolonged high-temperature conditions of 720℃, the set screw threads are prone to oxidation, corrosion, wear, and thermal expansion deformation, potentially leading to adjustment difficulties or even jamming. This frequently results in insufficient tightening or misalignment, causing the seal at the smelting furnace outlet to fail. Molten aluminum then leaks out from around the plug, causing aluminum leakage. Aluminum leakage not only wastes molten aluminum and increases production costs but can also trigger serious safety accidents such as fires and explosions, damaging production equipment, threatening the lives of operators, and causing significant economic losses to the company. Therefore, providing a smelting apparatus for aluminum ingot processing is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] One object of the present invention is to provide a smelting apparatus for aluminum ingot processing to solve the above-mentioned technical problems. The technical solution of the present invention is as follows: A smelting apparatus for aluminum ingot processing according to an embodiment of the present invention includes a base plate, a smelting furnace, and a flow channel. The top outer wall of the base plate is provided with three support frames, and the outer wall of the smelting furnace is provided with two fixing rings. The smelting furnace is fixedly connected to the three support frames via the two fixing rings. The base plate is fixedly connected to the smelting furnace via the three support frames. The apparatus further includes a compensation mechanism located below the smelting furnace. The compensation mechanism includes a connecting cylinder and a plug, a heat-conducting column, a heat compensation ring, and a guide rod arranged vertically in sequence. The heat-conducting column is fixedly connected to the heat compensation ring, and the heat-conducting column and the heat compensation ring are... A compensating ring is slidably connected inside the connecting cylinder, and a stopper rod is also slidably connected inside the connecting cylinder. A supporting spring is provided between the stopper rod and the thermal compensating ring. A furnace eye is opened on the bottom outer wall of the smelting furnace, and a guide pipe is provided on the furnace eye. The bottom end of the guide pipe is sealed to the connecting cylinder. A stopper head is slidably connected to the inner wall of the guide pipe. The flow channel is located directly below the furnace eye, and an outlet is also opened on the inner wall of the guide pipe. The smelting furnace communicates with the flow channel through the outlet. The driving mechanism is located below the compensating mechanism. The display mechanism is located on one side of the compensating mechanism.

[0005] Furthermore, the top outer wall of the base plate is also provided with a mounting plate, and the connecting cylinder is fixedly connected to one side outer wall of the mounting plate by bolts. Two retaining rings are also fixedly installed inside the connecting cylinder, and the retaining rings are located directly above the thermal compensation ring. The retaining rings have a semi-arc structure and are used to limit the maximum compensation stroke of the thermal compensation ring.

[0006] The retaining ring indirectly limits the effective expansion stroke of the thermal compensation ring, ensuring that the thermal compensation ring always operates within a controllable expansion range and avoiding the risk of jamming.

[0007] Furthermore, the display mechanism is located on one side of the connecting cylinder. The display mechanism includes a dial and two racks mounted on the mounting plate. The connecting cylinder has a guide opening. The top outer wall of the thermal compensation ring has a connecting rod. The connecting rod is slidably connected to the inner wall of the guide opening. The end of the connecting rod away from the thermal compensation ring is fixedly connected to a connecting frame. One outer wall of the connecting frame has a connecting shaft. One end of the connecting shaft is fixedly connected to a pointer. The dial is mounted on the connecting shaft via a bearing. The outer wall of the dial has two symmetrically distributed toothed rings. The teeth on the toothed rings mesh with the racks.

[0008] When the dial rotates synchronously with the movement of the thermal compensation ring, the operator can intuitively see the wear condition of the plug by pointing the pointer to different indication ranges corresponding to a fixed angle position on the dial, without having to disassemble the entire device.

[0009] Furthermore, the driving mechanism includes an electric telescopic rod and a base plate. The base plate is fixedly connected to the end of the plug rod away from the connecting cylinder. The fixed end of the electric telescopic rod is fixedly installed on the outer wall of the mounting plate away from the rack. The top outer wall of the base plate is also fixedly connected to a fixing frame by bolts. The top outer wall of the fixing frame has a guide groove. The movable end of the electric telescopic rod passes through the mounting plate, and the movable end of the electric telescopic rod is fixedly connected to a moving plate. The moving plate is slidably connected to the inner wall of the guide groove. The bottom outer wall of the base plate is fixedly connected to a fixing plate by bolts. The fixing plate has a connecting groove. The moving plate is connected to a mounting wheel by a bearing. The mounting wheel is rotatably connected to the inner wall of the connecting groove.

[0010] By controlling the extension or retraction of the movable end of the electric telescopic rod, the moving plate can slide along the guide groove at the top of the fixed frame. Then, the mounting wheels on the moving plate roll in the connecting groove of the fixed plate. The fixed plate drives the base plate to move, and the base plate drives the stop rod to move up and down. Thus, the operator can remotely control the opening and closing of the furnace hole from the control room without having to get close to the high-temperature furnace body, reducing labor intensity and the risk of burns.

[0011] The beneficial effects of this invention are: Compared to traditional manual periodic tightening of the set screw, the thermal compensation ring provides additional compression when the stopper wears out, effectively preventing aluminum leakage within a certain range and maintaining a sealed state without manual intervention. Specifically, when the furnace bore needs to be closed, the stopper is immersed in molten aluminum under the drive mechanism. Heat is transferred to the heat-conducting column through the stopper, which quickly conducts the heat to the thermal compensation ring fixedly connected to it. After being heated, the thermal compensation ring undergoes significant thermal expansion in both the vertical and horizontal directions. After the thermal compensation ring extends upward to a certain range, it is limited by the retaining ring. The downward expansion force of the thermal compensation ring, through the cooperation of the guide rod and the limiting groove, compresses the support spring and pushes the stopper rod downward. However, since the stopper rod is locked below by the drive mechanism, the reaction force will actually push the thermal compensation ring back through the support spring. Ultimately, the thermal compensation ring presses the stopper more tightly against the inner wall of the furnace bore through the heat-conducting column, automatically compensating for the gaps caused by wear and maintaining a seal. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a smelting apparatus for aluminum ingot processing proposed in this invention; Figure 2 This is a cross-sectional view of the structure of a smelting device for aluminum ingot processing in the state of casting molten aluminum, as proposed in this invention.

[0013] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point A.

[0014] Figure 4 This is a cross-sectional view of the structure of a smelting apparatus for aluminum ingot processing in the closed furnace state, as proposed in this invention.

[0015] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0016] Figure 6 This is a cross-sectional view of the compensation mechanism structure of a smelting apparatus for aluminum ingot processing proposed in this invention.

[0017] Figure 7 This is a schematic diagram of the compensation mechanism structure of a smelting apparatus for aluminum ingot processing proposed in this invention.

[0018] Figure 8 This is a schematic diagram of the display mechanism structure of a smelting apparatus for aluminum ingot processing proposed in this invention.

[0019] Figure 9 This is a schematic diagram of the drive mechanism of a smelting device for aluminum ingot processing proposed in this invention.

[0020] Figure 10 This is a schematic diagram of the guide assembly structure of a smelting apparatus for aluminum ingot processing proposed in this invention.

[0021] In the diagram: 1. Base plate; 2. Melting furnace; 3. Fixing ring; 4. Support frame; 5. Flow channel; 6. Fixing frame; 7. Mounting plate; 8. Electric telescopic rod; 9. Guide pipe; 10. Limiting ring; 11. Discharge port; 12. Plug; 13. Connecting cylinder; 14. Plug rod; 15. Rack; 16. Dial; 17. Retaining ring; 18. Heat-conducting column; 19. Connecting rod; 20. Thermal compensation ring; 21. Support spring; 22. Guide rod; 23. Limiting groove; 24. Guide opening; 25. Sealing ring; 26. Gear ring; 27. Pointer; 28. Base plate; 29. ​​Guide groove; 30. Moving plate; 31. Fixing plate; 32. Connecting groove; 33. Mounting wheel; 34. Limiting cylinder; 35. Limiting post. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0023] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A smelting apparatus for aluminum ingot processing includes a base plate 1, a smelting furnace 2, and a flow channel 5. Three support frames 4 are provided on the top outer wall of the base plate 1, and two fixing rings 3 are provided on the outer wall of the smelting furnace 2. The smelting furnace 2 is fixedly connected to the three support frames 4 via the two fixing rings 3. The base plate 1 is fixedly connected to the smelting furnace 2 via the three support frames 4. The apparatus also includes a compensation mechanism located below the smelting furnace 2. The compensation mechanism includes a connecting cylinder 13 and, in a vertical direction, a plug 12, a heat-conducting column 18, a thermal compensation ring 20, and a guide rod 22. The heat-conducting column 18 is fixedly connected to the thermal compensation ring 20, and the heat-conducting column 18 and the thermal compensation ring 20 are connected in a vertically arranged manner. The compensation ring 20 is slidably connected inside the connecting cylinder 13. A stopper rod 14 is also slidably connected inside the connecting cylinder 13. A support spring 21 is provided between the stopper rod 14 and the thermal compensation ring 20. A furnace eye is opened on the bottom outer wall of the smelting furnace 2. A guide pipe 9 is provided on the furnace eye. The bottom end of the guide pipe 9 is sealed to the connecting cylinder 13. The stopper 12 is slidably connected to the inner wall of the guide pipe 9. The flow channel 5 is located directly below the furnace eye. An outlet 11 is also opened on the inner wall of the guide pipe 9. The smelting furnace 2 is connected to the flow channel 5 through the outlet 11. The drive mechanism is located below the compensation mechanism. The display mechanism is located on one side of the compensation mechanism.

[0024] It should be noted that the plug 12 uses an Inconel 625 alloy metal substrate. In addition, an alumina ceramic coating is sprayed on the contact surface between the plug 12 and the molten aluminum to reduce the scouring and wear of the metal substrate by the molten aluminum and reduce heat loss during the heat conduction process.

[0025] In practical use, the support spring 21 can be an Inconel X-750 spring, which can still maintain excellent high-temperature performance and relaxation resistance at 720℃. Compared with the traditional spring with fixed stiffness, this solution realizes the thrust adaptive adjustment with temperature. Through the thermal expansion effect of the thermal compensation ring 20, the seal can be maintained within a certain range without manual intervention. The inner wall of the feed tube 9 can be inlaid with a zirconia ceramic liner to improve wear resistance, prevent aluminum liquid adhesion, and ensure smooth sliding of the plug 12. The heat conduction column 18 can be made of copper with chrome plating for corrosion protection, which can quickly transfer the heat of the plug 12 to the thermal compensation ring 20 and reduce response lag.

[0026] The thermal compensation ring 20 is made of a heat-resistant alloy material with a large coefficient of thermal expansion, such as a shape memory alloy nickel-titanium-based SMA ring. The working principle of the thermal compensation ring 20 is based on the phase transformation characteristics of shape memory alloys. When the temperature rises, it undergoes a phase transformation and expands, thereby automatically increasing the thrust. In the room temperature assembly state, the thermal compensation ring 20 is in the martensitic phase, and its size is relatively small at this time, only used to provide preload for supporting the spring 21 and the drive mechanism. When the furnace temperature rises to above 300°C, the thermal compensation ring 20 begins to undergo an austenitic phase transformation, generating a certain amount of expansion in the axial direction, and this expansion increases with the increase of temperature. When the furnace reaches the working temperature of 720°C, the thermal compensation ring 20 can provide additional continuous thrust. Furthermore, since the higher the temperature, the easier it is for molten aluminum to leak, and the compensation force of the thermal compensation ring 20 increases with the increase of temperature, it can effectively deal with the problem of molten aluminum leakage.

[0027] Among them, the inner wall of the feed pipe 9 near the furnace eye is provided with a limiting ring 10. The limiting ring 10 is used to abut against the plug head 12 to limit the extreme position of the plug head 12 moving upward. This setting makes it easy for the plug head 12 to return to the same height accurately each time the furnace eye is closed, and form a stable sealing contact with the limiting ring 10. This avoids the problem of unreliable sealing caused by the stroke error of the drive mechanism or the difference in judgment of the operator.

[0028] In the specific implementation process, the top outer wall of the base plate 1 is also provided with a mounting plate 7. The connecting cylinder 13 is fixedly connected to one side outer wall of the mounting plate 7 by bolts. Two retaining rings 17 are also fixedly installed inside the connecting cylinder 13, and the retaining rings 17 are located directly above the thermal compensation ring 20. The retaining rings 17 have a semi-arc structure. The retaining rings 17 are used to limit the maximum compensation stroke of the thermal compensation ring 20. By limiting the maximum upward movement of the thermal compensation ring 20, the retaining rings 17 indirectly limit its effective expansion stroke, ensuring that the thermal compensation ring 20 always works within the controllable expansion range and avoiding the risk of jamming.

[0029] Specifically, the outer wall of the plug 12 is provided with a sealing ring 25 for sealing the feed tube 9. The sealing ring 25 can be a piston ring type metal expansion ring, made of heat-resistant steel or nickel-based alloy, which can form a tight fit with the inner wall of the feed tube 9, while allowing the plug 12 to slide smoothly.

[0030] In addition, in actual implementation, when the support spring 21, thermal compensation ring 20, heat-conducting column 18 and plug head 12 are moved up and down as a whole by an external drive mechanism, there is a gap between the thermal compensation ring 20 and the retaining ring 17.

[0031] In practical use, the guide rod 22 and the thermal compensation ring 20 are integrally formed. The top end of the plug rod 14 is provided with a limiting groove 23. One end of the guide rod 22 is inserted into the inner wall of the limiting groove 23. After the guide rod 22 is inserted into the limiting groove 23 at the top end of the plug rod 14, the limiting groove 23 forms a radial constraint on the guide rod 22, forcing the plug rod 14 and the thermal compensation ring 20 to remain coaxial, thereby avoiding uneven wear and jamming caused by assembly deviation.

[0032] Specifically, in the initial installation state, the plug rod 14 is pushed to the set position by the external drive mechanism, so that the plug head 12 presses tightly against the limiting ring 10 inside the guide tube 9. At this time, the plug head 12 closes the furnace hole, and the sealing ring 25 on the outer wall of the plug head 12 blocks the outlet 11 on the side wall of the guide tube 9, so the aluminum liquid in the smelting furnace 2 cannot flow out. When it is necessary to pour molten aluminum, the external drive mechanism pulls the stopper rod 14 downward. The stopper rod 14 moves downward, which drives the support spring 21, the thermal compensation ring 20, the heat-conducting column 18 and the stopper head 12 to move downward as a whole. The stopper head 12 disengages from the limiting ring 10 at the top of the guide tube 9 and slides downward. When the stopper head 12 moves down to the point where the sealing ring 25 on its outer wall is lower than the outlet 11, the outlet 11 is connected to the furnace eye. The high-temperature molten aluminum in the melting furnace 2, at about 720°C, flows out from the furnace eye under static pressure and falls into the flow channel 5 directly below through the outlet 11, flowing towards the casting process. When casting is finished and the furnace hole needs to be closed, the external drive mechanism pushes the stopper rod 14 upward. The stopper rod 14 drives the stopper head 12 to move upward through the support spring 21 and the thermal compensation ring 20. The sealing ring 25 on the outer wall of the stopper head 12 faces and blocks the outlet 11 on the side wall of the feed pipe 9, so that the aluminum liquid cannot flow out. During long-term use, the furnace eye or plug 12 may wear due to the scouring and corrosion of high-temperature molten aluminum, potentially leading to increased gaps and leakage. At this point, the compensation mechanism automatically intervenes. When the plug 12 is immersed in the molten aluminum, heat is transferred through the plug 12 to the heat-conducting column 18. The heat-conducting column 18 rapidly conducts the heat to the thermal compensation ring 20, which is fixedly connected to it. Upon heating, the thermal compensation ring 20 undergoes significant thermal expansion in both the vertical and horizontal directions. After extending upwards to a certain extent, the thermal compensation ring 20 is limited by the retaining ring 17. The downward expansion force of the thermal compensation ring 20 is controlled by the guide rod 22 and the limiting groove. With the cooperation of 23, the compression support spring 21 is pushed downwards and the plug rod 14 is pushed. However, since the plug rod 14 is locked by the drive mechanism below, the reaction force will actually push the thermal compensation ring 20 back through the support spring 21. Ultimately, the thermal compensation ring 20 presses the plug head 12 more tightly against the inner wall of the furnace hole through the heat-conducting column 18, automatically making up for the gap caused by wear and maintaining the seal. Compared with the traditional manual periodic tightening of the set screw, this device can provide additional compression when the plug head 12 wears. The thermal compensation ring 20 expands due to heat, which can effectively prevent aluminum leakage accidents within a certain range and maintain the seal without manual intervention.

[0033] Please refer to Figure 1 , Figure 2 , Figure 4 and Figure 8 In a preferred embodiment, the display mechanism is located on one side of the connecting cylinder 13. The display mechanism includes a dial 16 and two racks 15 disposed on the mounting plate 7. The connecting cylinder 13 has a guide opening 24. The top outer wall of the thermal compensation ring 20 is provided with a connecting rod 19. The connecting rod 19 is slidably connected to the inner wall of the guide opening 24. The end of the connecting rod 19 away from the thermal compensation ring 20 is fixedly connected to a connecting frame. One outer wall of the connecting frame is provided with a connecting shaft. One end of the connecting shaft is fixedly connected to a pointer 27. The dial 16 is mounted on the connecting shaft through a bearing. The outer wall of the dial 16 is provided with two symmetrically distributed toothed rings 26. The teeth on the toothed rings 26 mesh with the racks 15.

[0034] The dial 16 has at least three indicator areas within the reasonable movement range of the thermal compensation ring 20. These three indicator areas correspond to the normal range, the wear compensation range, and the over-compensation range, respectively. When the pointer 27 and the dial 16 move with the thermal compensation ring 20, the axial relative position between the pointer 27 and the dial 16 remains unchanged, regardless of the height to which the thermal compensation ring 20 moves. When the dial 16 rotates, the operator can intuitively see that the pointer 27 points to a fixed angle position on the dial 16.

[0035] Specifically, when the smelting furnace 2 is not heated, the thermal compensation ring 20 is in a room-temperature contraction state. At this time, the connecting frame, connecting shaft, and pointer 27, which are sequentially connected to the connecting rod 19, are all in their lowest positions, and the pointer 27 points to the area on the dial 16 representing the normal range. When the smelting furnace 2 is heated, the heat is conducted to the thermal compensation ring 20 through the plug 12 and the heat-conducting column 18. The thermal compensation ring 20 expands due to heat, thereby driving the connecting rod 19 to slide upward along the guide port 24. The connecting rod 19 drives the connecting frame, connecting shaft, and pointer 27 to move synchronously. The toothed ring 26 on the outer wall of the dial 16 meshes with the stationary rack 15. 5. Drive the gear ring 26 to rotate, thereby causing the dial 16 to rotate relative to the connecting shaft. Since the pointer 27 is fixedly connected to the connecting shaft, the pointer 27 moves with the connecting shaft but does not rotate itself. The dial 16 rotates while moving. The pointer 27 and the dial 16 always remain relatively stationary in the axial direction. The rotation of the dial 16 causes different areas on its surface to be displaced relative to the pointer 27. As the upward movement of the thermal compensation ring 20 increases, the pointer 27 sweeps across different indicating areas on the dial 16 in sequence. The operator can determine the wear condition of the plug 12 by the direction of the pointer 27 without disassembling the equipment.

[0036] Please refer to Figure 1 , Figure 9 and Figure 10In a preferred embodiment, the drive mechanism includes an electric telescopic rod 8 and a base plate 28. The base plate 28 is fixedly connected to the end of the plug rod 14 away from the connecting cylinder 13. The fixed end of the electric telescopic rod 8 is fixedly mounted on the outer wall of the mounting plate 7 away from the rack 15. The top outer wall of the base plate 1 is also fixedly connected to a fixing frame 6 by bolts. The top outer wall of the fixing frame 6 is provided with a guide groove 29. The movable end of the electric telescopic rod 8 passes through the mounting plate 7, and the movable end of the electric telescopic rod 8 is fixedly connected to a moving plate 30. The moving plate 30 is slidably connected to the inner wall of the guide groove 29. The bottom outer wall of the base plate 28 is fixedly connected to a fixing plate 31 by bolts. The fixing plate 31 is provided with a connecting groove 32. The moving plate 30 is connected to a mounting wheel 33 by a bearing. The mounting wheel 33 is tumbledly connected to the inner wall of the connecting groove 32.

[0037] A guide assembly is provided between the substrate 28 and the fixing frame 6. The guide assembly includes four limiting posts 35, which are located at the four corners of the bottom outer wall of the substrate 28. The top outer wall of the fixing frame 6 is also provided with four limiting cylinders 34. The limiting posts 35 are inserted into the corresponding limiting cylinders 34, and the end of the limiting post 35 away from the substrate 28 passes through the fixing frame 6. The guide assembly composed of the four limiting posts 35 and the limiting cylinders 34 simultaneously constrains the movement direction of the substrate 28 from the four corners, ensuring that the substrate 28 can only move vertically, preventing the stopper rod 14 from tilting, and ensuring that the stopper head 12, the furnace eye, and the guide tube 9 always remain coaxial, avoiding uneven wear and jamming.

[0038] In the specific implementation process, the connecting groove 32 is approximately a "Z" shaped structure. The two horizontal segments of the "Z" shape extend in the horizontal direction. The connecting groove 32 on the fixing plate 31 has a preset groove top height. The groove top height determines the maximum upward stroke of the stopper rod 14. Since the fixing plate 31 is a detachable and replaceable structure, the maximum upward stroke of the stopper rod 14 can be adjusted by replacing the fixing plate 31 with a different groove top height in specific use, so as to adapt to furnace holes with different wear levels or stopper heads 12 of different specifications.

[0039] Specifically, by controlling the extension or retraction of the movable end of the electric telescopic rod 8, the movable plate 30 can slide along the guide groove 29 on the top of the fixed frame 6. Then, the mounting wheel 33 on the movable plate 30 rolls in the connecting groove 32 of the fixed plate 31. The fixed plate 31 drives the base plate 28 to move, and the base plate 28 drives the stopper rod 14 to move up and down. Thus, the operator can remotely control the opening and closing of the furnace eye from the control room without having to approach the high-temperature furnace body, reducing labor intensity and the risk of burns. When the stopper rod 14 is in the closed position of the furnace eye, the mounting wheel 33 is located in the horizontal section of the "Z" shaped groove. At this time, the horizontal thrust of the electric telescopic rod 8 cannot generate a vertical component force, and the stopper 12 will not be accidentally opened due to misoperation or power failure, thus improving its safety.

[0040] Working principle: During long-term use, when the furnace eye or plug 12 is worn due to the scouring and corrosion of high-temperature molten aluminum, the compensation mechanism automatically intervenes. When the plug 12 comes into contact with the molten aluminum, the heat is transferred to the heat-conducting column 18. The heat-conducting column 18 quickly conducts the heat to the thermal compensation ring 20, which is fixedly connected to it. After being heated, the thermal compensation ring 20 undergoes significant thermal expansion and elongation in both the vertical and horizontal directions. After the thermal compensation ring 20 elongates upward to a certain range, it is limited by the retaining ring 17. The downward expansion force of the thermal compensation ring 20 compresses the support spring 21 and pushes the plug rod 14 downward through the cooperation of the guide rod 22 and the limiting groove 23. However, since the plug rod 14 is locked below by the drive mechanism, the reaction force will actually push the thermal compensation ring 20 back through the support spring 21. Ultimately, the thermal compensation ring 20 presses the plug 12 more tightly against the inner wall of the furnace eye through the heat-conducting column 18, automatically making up for the gap caused by wear and maintaining the sealing state.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A smelting apparatus for processing aluminum ingots, characterized in that, The system includes a base plate (1), a smelting furnace (2), and a flow channel (5). The top outer wall of the base plate (1) is provided with three support frames (4). The outer wall of the smelting furnace (2) is provided with two fixing rings (3). The smelting furnace (2) is fixedly connected to the three support frames (4) via the two fixing rings (3). The base plate (1) is fixedly connected to the smelting furnace (2) via the three support frames (4). The system also includes: Compensation Mechanism: Located below the smelting furnace (2), the compensation mechanism includes a connecting cylinder (13) and a plug (12), a heat-conducting column (18), a heat compensation ring (20), and a guide rod (22) arranged vertically in sequence. The heat-conducting column (18) is fixedly connected to the heat compensation ring (20), and the heat-conducting column (18) and the heat compensation ring (20) are slidably connected inside the connecting cylinder (13). A plug rod (14) is also slidably connected inside the connecting cylinder (13). The plug rod (14) is connected to the... A support spring (21) is provided between the heat compensation rings (20). A furnace eye is provided on the bottom outer wall of the smelting furnace (2). A guide pipe (9) is provided on the furnace eye. The bottom end of the guide pipe (9) is sealed to the connecting cylinder (13). The plug (12) is slidably connected to the inner wall of the guide pipe (9). The flow channel (5) is located directly below the furnace eye. An outlet (11) is also provided on the inner wall of the guide pipe (9). The smelting furnace (2) is connected to the flow channel (5) through the outlet (11). Drive mechanism: located below the compensation mechanism; Display mechanism: located on one side of the compensation mechanism.

2. The smelting apparatus for aluminum ingot processing according to claim 1, characterized in that, The feed pipe (9) is provided with a limiting ring (10) on the inner wall near the furnace eye. The limiting ring (10) is used to abut against the plug (12) to limit the extreme position of the plug (12) moving upward.

3. The smelting apparatus for aluminum ingot processing according to claim 1, characterized in that, The top outer wall of the base plate (1) is also provided with an installation plate (7). The connecting cylinder (13) is fixedly connected to one side outer wall of the installation plate (7) by bolts. Two retaining rings (17) are also fixedly provided inside the connecting cylinder (13). The retaining rings (17) are located directly above the heat compensation ring (20). The retaining rings (17) are semi-arc structures. The retaining rings (17) are used to limit the maximum compensation stroke of the heat compensation ring (20).

4. The smelting apparatus for aluminum ingot processing according to claim 1, characterized in that, The outer wall of the plug (12) is provided with a sealing ring (25) for sealing the feed tube (9).

5. The smelting apparatus for aluminum ingot processing according to claim 1, characterized in that, The guide rod (22) and the thermal compensation ring (20) are integrally formed. The top end of the plug rod (14) is provided with a limiting groove (23), and one end of the guide rod (22) is inserted into the inner wall of the limiting groove (23).

6. The smelting apparatus for aluminum ingot processing according to claim 3, characterized in that, The display mechanism is located on one side of the connecting cylinder (13). The display mechanism includes a dial (16) and two racks (15) set on the mounting plate (7). A guide port (24) is provided on the connecting cylinder (13). A connecting rod (19) is provided on the top outer wall of the thermal compensation ring (20). The connecting rod (19) is slidably connected to the inner wall of the guide port (24). A connecting frame is fixedly connected to one end of the connecting rod (19) away from the thermal compensation ring (20). A connecting shaft is provided on one outer wall of the connecting frame. A pointer (27) is fixedly connected to one end of the connecting shaft. The dial (16) is mounted on the connecting shaft through a bearing. Two symmetrically distributed toothed rings (26) are provided on the outer wall of the dial (16). The teeth on the toothed rings (26) mesh with the racks (15).

7. The smelting apparatus for aluminum ingot processing according to claim 6, characterized in that, The dial (16) has at least three indicator areas within the reasonable movement range of the thermal compensation ring (20), and the three indicator areas correspond to the normal range, the wear compensation range, and the over-compensation range, respectively.

8. A smelting apparatus for aluminum ingot processing according to claim 6, characterized in that, The driving mechanism includes an electric telescopic rod (8) and a base plate (28). The base plate (28) is fixedly connected to the end of the plug rod (14) away from the connecting cylinder (13). The fixed end of the electric telescopic rod (8) is fixedly installed on the outer wall of the mounting plate (7) away from the rack (15). The top outer wall of the base plate (1) is also fixedly connected to a fixing frame (6) by bolts. The top outer wall of the fixing frame (6) is provided with a guide groove (29). The movable end of the electric telescopic rod (8) A movable plate (30) is fixedly connected to the movable end of the electric telescopic rod (8) through the mounting plate (7). The movable plate (30) is slidably connected to the inner wall of the guide groove (29). A fixed plate (31) is fixedly connected to the bottom outer wall of the base plate (28) by bolts. A connecting groove (32) is provided on the fixed plate (31). An installation wheel (33) is connected to the movable plate (30) by a bearing. The installation wheel (33) is tumbled on the inner wall of the connecting groove (32).

9. A smelting apparatus for aluminum ingot processing according to claim 8, characterized in that, A guide assembly is provided between the substrate (28) and the fixing frame (6). The guide assembly includes four limiting posts (35). The four limiting posts (35) are located at the four corners of the bottom outer wall of the substrate (28). The top outer wall of the fixing frame (6) is also provided with four limiting cylinders (34). The limiting posts (35) are inserted into the interior of the corresponding limiting cylinders (34), and the end of the limiting post (35) away from the substrate (28) passes through the fixing frame (6).

10. A smelting apparatus for aluminum ingot processing according to claim 9, characterized in that, The connecting groove (32) is approximately a "Z" shaped structure, with the two horizontal segments of the "Z" extending in the horizontal direction.

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