Aluminum alloy smelting and transferring equipment

Abstract

The invention relates to the field of aluminum alloy smelting, and discloses aluminum alloy smelting and transferring equipment which comprises an integrated furnace body, an opening and closing assembly, a plugging assembly, a material transferring trolley and a transfer ladle, aluminum material preheating and sufficient smelting are achieved through connection of double smelting chambers, automatic operation is achieved through the opening and closing assembly and the plugging assembly, manual work is replaced, and the transfer ladle is of a cylindrical structure and is made of a multi-layer composite heat preservation material. By matching with the design of accurate diameter depth and the size proportion of the pouring nozzle, a temperature sensor is arranged on the side wall, a hollow base is arranged at the bottom, and the structure can disperse thermal stress, efficiently lock temperature, minimize the contact area of melt and air, prevent oxidation, reduce heat dissipation, ensure the stability of melt temperature components, prevent the melt from splashing and remaining, improve the transfer efficiency and the durability of equipment, and reduce the production cost. Labor intensity and leakage risk are reduced, and core technical problems are solved.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy smelting, and more specifically to an aluminum alloy smelting transfer device. Background Technology

[0002] Aluminum alloy melting is a core process in aluminum processing, with stringent requirements for molten metal purity, energy consumption, and operational safety. Existing aluminum alloy melting equipment is equipped with five core components: a raw material lifting section, a melting section, a discharge receiving section, a fume extraction section, and a transfer ladle for molten metal. These components enable basic functions such as raw material transport, melting, discharge, fume extraction, and molten metal transfer. However, in actual industrial applications, limitations imposed by process characteristics and structural design still result in several performance shortcomings, impacting production efficiency and product quality. Furthermore, the lack of specific insulation and protection design during molten metal transfer makes it susceptible to oxidation upon contact with air. Simultaneously, rapid heat loss leads to a drop in molten metal temperature and reduced compositional stability, directly affecting the quality of subsequent product molding. Summary of the Invention

[0003] The present invention aims to provide an aluminum alloy melting and transfer device to solve the problems of lack of heat preservation and protection during molten transfer, easy oxidation and heat dissipation, and unstable composition affecting product quality.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an aluminum alloy melting and transfer device, comprising a furnace body, an opening and closing assembly, a sealing assembly, a transfer cart, and a transfer ladle; the furnace body has a feed inlet and a furnace cover at the top, and two interconnected melting chambers inside, the first melting chamber being vertical and its bottom connected to the second melting chamber, and a discharge outlet on one side of the furnace body; the opening and closing assembly includes a first support, a rotating arm, and a first cylinder, the support being fixed to the upper part of the outer wall of the furnace body, one end of the rotating arm being connected to the furnace cover, the drive rod being hinged to the piston rod of the cylinder, and the support cantilever being hinged to the cylinder body; the sealing assembly includes a second support, a movable connecting rod, a transmission connecting rod, and a second cylinder, the movable connecting rod being a three-bar linkage structure and The second support is connected to form a parallelogram. The transmission link is hinged to the bent part and the movable link. The cylinder piston rod is connected to the transmission link. A sealing rod with a sealing head is provided below the movable link. The transfer cart is located below the discharge port. The lifting device hook is rotatably connected to the transfer bag. The transfer bag is an open-top cylinder with an inclined pouring spout extending from the outer wall. The feed port gradually tapers towards the discharge port. From the inside out, it contains castable material, nanofiber board, fiber paper and steel plate. The internal diameter to depth ratio is 1.1. The axial height of the feed port to the internal depth ratio is 0.55. The side wall has a mounting hole for a built-in temperature sensor. The bottom has a transport base with a hollowed-out opening.

[0005] The beneficial effects of this solution are as follows: The equipment integrates the entire process of smelting, automatic opening and closing, automatic sealing, and molten metal transfer, replacing manual operations such as opening the furnace cover and sealing the discharge port, reducing labor intensity, minimizing the risk of molten metal leakage and spillage caused by human error, and improving the automation and safety of smelting and transfer operations. The dual-melting-chamber connection structure enables continuous operation of aluminum alloy preheating and full smelting, laying the foundation for stable molten metal quality. The transfer container adopts a cylindrical body to disperse thermal stress, reducing the risk of deformation and cracking caused by high-temperature molten metal, improving equipment durability, and the multi-layer composite insulation structure also provides erosion resistance. With its efficient heat-locking effect and internal diameter-to-depth ratio design, it minimizes the contact area between the molten metal and air, effectively preventing oxidation of the molten metal, reducing heat loss, and ensuring stable temperature and composition of the molten metal. This solves the core problem of molten metal quality being affected by the transfer process. The gradually shrinking structure of the transfer bag's pouring spout, combined with a precise dimensional ratio design, enables smooth flow of the molten metal, avoiding splashing and residue, reducing material waste, and improving transfer efficiency. The design of the temperature sensor and lightweight handling base also enables accurate monitoring of the molten metal temperature and convenient equipment handling, further ensuring the process controllability and ease of operation of molten metal transfer.

[0006] Preferably, as an improvement, the drive rod is L-shaped, and an opening and closing switch for controlling the opening and closing of the furnace cover is provided on the outside of the first bracket hinge seat.

[0007] Preferably, as an improvement, the sealing head is wrapped with heat-insulating asbestos, and the sealing rod is fixedly connected to the movable connecting rod.

[0008] Preferably, as an improvement, the angle between the top inclined surface of the pouring nozzle and the top of the furnace body is 160° to 165°, and the angle between the bottom inclined surface and the axial direction of the furnace body is 50° to 60°.

[0009] Preferably, as an improvement, the nanofiber board is 20mm to 30mm thick, the fiber paper is 5mm thick, the steel plate is 6mm thick, and the thermal conductivity of the nanofiber board is 0.028.

[0010] Preferably, as an improvement, the castable is made of high-temperature resistant, corrosion-resistant, and non-stick aluminum, and the transport base has a frame structure.

[0011] Preferably, as an improvement, a fume hood is installed above the furnace inlet and at the top of the observation section, and the fume hood is connected through a flue pipe. Attached Figure Description

[0012] Figure 1 This is a front view of the furnace body according to an embodiment of the present invention; Figure 2 This is a side view of the furnace body in the closed state according to an embodiment of the present invention; Figure 3 This is a top view of the furnace body in the closed state according to an embodiment of the present invention; Figure 4These are schematic diagrams of the furnace body molten metal transfer structure in Embodiments 1 and 2 of the present invention; Figure 5 This is a schematic diagram of the material transfer cart structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the subcontracting cross-sectional structure in an embodiment of the present invention; Figure 7 for Figure 6 A partial structural diagram of point A in the Zhongzhong subcontracting project; Figure 8 This is a top view of the subcontracting process in an embodiment of the present invention. Detailed Implementation

[0013] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: furnace body 1, feed inlet 11, furnace cover 111, opening and closing assembly 12, first support 121, hinge seat 1211, rotating arm 122, drive rod 1221, first cylinder 123, first melting chamber 13, second melting chamber 14, discharge port 15, sealing assembly 16, second support 161, movable connecting rod 162, sealing rod 1621, transmission connecting rod 163, second cylinder 164, fume hood 2, fume pipe 21, transfer cart 3, lifting box 31, limit plate 32, lifting device 321, hook 322, transfer bag 4, tilting nozzle 41, feed port 42, discharge port 43, castable refractory 44, nanofiber board 45, fiber paper 46, steel plate 47, mounting hole 48, temperature sensor 49, and perforation 40.

[0014] Example like Figures 1-3 The aluminum alloy melting and transfer equipment shown includes a furnace body 1. A feed inlet 11 is provided at the top of the furnace body 1, and a furnace cover 111 is placed over the feed inlet 11. An opening and closing assembly 12 for controlling the automatic opening and closing of the furnace cover 111 is provided on the furnace body 1. The opening and closing assembly 12 includes a first support 121, a rotating arm 122, and a first cylinder 123. The first support 121 is located on the upper part of one side of the outer wall of the furnace body 1. The downward extension of the rotating arm 122 is hinged to a hinge seat 1211 at the upper end of the first support 121. One end of the horizontal extension of the rotating arm 122 is fixedly connected to the furnace cover 111. The rotating arm 122 is fixed with an L-shaped drive rod 1221, which is hinged to the piston rod of the first cylinder 123. By setting the opening and closing assembly 12, the furnace cover 111 can be opened and closed automatically, and aluminum ingots can be loaded. All aluminum ingots can be quickly put into the molten pool without manual operation, which greatly reduces the labor intensity of workers, is convenient to use and improves work efficiency. The lower side of the first support 121 is provided with a cantilever support. The middle section of the cylinder of the first cylinder 123 is hinged to the cantilever support. The hinge seat 1211 of the first support 121 is provided with an opening and closing switch for controlling the opening and closing of the furnace cover 111.

[0015] The furnace body 1 also includes a first melting chamber 13, a second melting chamber 14, and a discharge port 15. The first melting chamber 13 is vertically arranged and its bottom is connected to the second melting chamber 14. Ignition devices are provided at the bottom of both the first melting chamber 13 and the second melting chamber 14. The discharge port 15 is provided with a sealing assembly 16, which includes a second support 161, a movable connecting rod 162, a transmission connecting rod 163, and a second cylinder 164. The second support 161 is fixedly connected to the furnace body 1. The movable connecting rod 162 is arranged below the second support 161 and is a three-bar linkage. The first cylinder 164 is rotatably connected to the second support 161 at both ends, forming a parallelogram with the second support 161. One end of the second support 161 is provided with a downward bending part, and the lower end of the bending part is hinged to the transmission connecting rod 163. The other end of the transmission connecting rod 163 is hinged to the middle of the movable connecting rod 162. The second cylinder 164 is located above the second support 161. The piston rod of the second cylinder 164 extends downward and is hinged to the middle of the transmission connecting rod 163. A sealing rod 1621 is provided below the movable connecting rod 162. The sealing rod 1621 is provided with a sealing head, and the sealing head is provided with heat-insulating asbestos.

[0016] After the material enters the feed inlet 11, the melting process begins. The aluminum alloy, which has been preheated in the upper part of the first melting chamber 13, begins to melt fully in the lower part of the first melting chamber 13 and the second melting chamber 14, and is discharged through the discharge outlet 15. During the melting process, the second cylinder 164 pushes downward, which pushes the movable connecting rod 162 through the transmission connecting rod 163, thereby driving the sealing rod 1621, so that the sealing head can be pressed against the discharge outlet 15 to maintain the sealing state. When it is necessary to discharge the material, the second cylinder 164 retracts, which drives the transmission connecting rod 163 and the movable connecting rod 162 to retract, thereby driving the sealing rod 1621 to move, so that the sealing head no longer plays a sealing role, and the molten aluminum can flow out smoothly.

[0017] like Figures 4-5 As shown, it also includes a transfer cart 3 and a transfer bag 4. The transfer cart 3 and the transfer bag 4 are set at the discharge port 15 of the furnace body 1 and are used to collect and transfer the molten aluminum alloy in the furnace body 1. The transfer cart 3 includes a lifting box 31 connected to an external transport track. A limit plate 32 is fixedly installed on the bottom surface of the lifting box 31. A lifting device 321 is fixedly installed inside the limit plate 32. A hook is fixedly connected to the bottom surface of the lifting device 321. The bottom surface of the hook is rotatably connected to the transfer bag 4.

[0018] like Figures 6-8As shown, the main body of the transfer bag 4 is a cylindrical shape with an open top. Compared with a cube or cone, the side walls are more evenly stressed under the same volume, which can disperse the thermal stress brought by the high temperature of the aluminum liquid and reduce the risk of deformation and cracking. The open top design of the transfer bag 4 facilitates the loading of aluminum liquid. The outer wall of the transfer bag 4 extends to form an upward-sloping aluminum liquid pouring spout 41, which allows the aluminum liquid to form a stable flow trajectory and avoids splashing. At the same time, it is adapted to the feeding height of the subsequent holding furnace. The pouring spout 41 is provided with a feeding port 42 and a discharging port 43. The feeding port 42 gradually narrows towards the discharging port 43, which not only speeds up the aluminum liquid flow rate and reduces residue, but also reduces heat conduction and heat dissipation. The discharging port 43 is higher than the top of the transfer bag 4 to ensure that the aluminum liquid is completely poured out and to avoid waste.

[0019] The ratio of the axial height of the feed port 42 along the transfer bag 4 to the internal depth of the transfer bag 4 is 0.55, balancing the transfer volume and safety to avoid overflow or insufficient capacity. The ratio of the internal diameter to the depth of the transfer bag 4 is 1.1, minimizing the contact area between the molten aluminum and the air, reducing the heat dissipation rate, and balancing the capacity and heat preservation effect. The angle between the top inclined surface of the pouring spout 41 and the top of the furnace body 1 is 160° to 165° to prevent the molten aluminum from overflowing. The angle between the bottom inclined surface and the axial direction of the furnace body 1 is 50° to 60°, balancing the component of gravity and the flow resistance to avoid excessively fast flow rate splashing or excessively slow flow rate inefficiency. The spacing of the discharge ports 43 is 160mm to 165mm, and the width ratio with the feed port 42 is 1:2, which conforms to the laws of fluid mechanics, achieves smooth acceleration, and improves the transfer efficiency.

[0020] The transshipment package 4 adopts a multi-layer composite structure, consisting of castable refractory 44, nanofiber board 45, fiber paper 46, and steel plate 47 from the inside out. The inner castable refractory 44 is made of high-temperature resistant and corrosion-resistant non-stick aluminum material to resist the erosion of molten aluminum. The 20mm-30mm thick nanofiber board 45 is the core insulation layer with a thermal conductivity as low as 0.028, effectively locking in temperature. The 5mm thick fiber paper 46 fills the gaps, enhancing the sealing and cushioning effect. The 6mm thick steel plate 47 provides structural support to resist impact and thermal deformation. The transshipment package 4 has a mounting hole 48 in the middle of its side wall, with a built-in temperature sensor 49 to accurately monitor the actual temperature of the molten aluminum, facilitating timely adjustment of process parameters and reducing casting defects. The bottom handling base is equipped with a hollowed-out opening 40, which ensures support stability while reducing the overall weight, making it convenient for forklifts and other equipment to handle and improving ease of use. It solves the pain points of traditional equipment such as poor heat preservation, easy breakage, and slow material pouring. While maintaining a stable temperature of molten aluminum and avoiding leakage and scrap, it improves the transfer efficiency and provides a strong guarantee for the safe and stable production of aluminum alloy casting. The furnace body 1 is equipped with a fume hood 2 above the feed inlet 11 and at the top of the observation section of the furnace body 1. The fume hoods are connected to each other through the exhaust pipe 21.

[0021] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An aluminum alloy melting and transfer device, characterized in that: The furnace includes a furnace body, an opening and closing assembly, a sealing assembly, a transfer cart, and a transfer container. The furnace body has a feed inlet and a furnace cover at the top, and two interconnected smelting chambers inside. The first smelting chamber is vertical and its bottom is connected to the second smelting chamber. A discharge port is located on one side of the furnace body. The opening and closing assembly includes a first support, a rotating arm, and a first cylinder. The support is fixed to the upper part of the outer wall of the furnace body. One end of the rotating arm is connected to the furnace cover. The drive rod is hinged to the piston rod of the cylinder. The cantilever of the support is hinged to the cylinder body. The sealing assembly includes a second support, a movable connecting rod, a transmission connecting rod, and a second cylinder. The movable connecting rod is a three-bar structure and is connected to the second support in a parallelogram. The transmission connecting rod is hinged to the bent part of the movable connecting rod. The piston rod of the cylinder is connected to the transmission connecting rod. A sealing rod with a sealing head is located below the movable connecting rod. The transfer cart is located below the discharge port, and the lifting device hook is rotatably connected to the transfer bag. The transfer bag is an open-top cylinder with an inclined pouring spout extending from the outer wall. The feed port gradually tapers towards the discharge port. From the inside out, it contains castable material, nanofiber board, fiber paper, and steel plate. The internal diameter to depth ratio is 1.1, and the axial height to internal depth ratio of the feed port is 0.

55. The side wall has mounting holes for built-in temperature sensors, and the bottom has a transport base with a hollowed-out opening.

2. The aluminum alloy melting and transfer equipment according to claim 1, characterized in that: The drive rod is L-shaped, and the outside of the first bracket hinge seat is equipped with an on / off switch to control the opening and closing of the furnace cover.

3. The aluminum alloy melting and transfer equipment according to claim 2, characterized in that: The sealing head is wrapped with heat-insulating asbestos on the outside, and the sealing rod is fixedly connected to the movable connecting rod.

4. The aluminum alloy melting and transfer equipment according to claim 3, characterized in that: The angle between the top inclined surface of the pouring nozzle and the top of the furnace body is 160° to 165°, and the angle between the bottom inclined surface and the axial direction of the furnace body is 50° to 60°.

5. The aluminum alloy melting and transfer equipment according to claim 4, characterized in that: The nanofiber board is 20mm-30mm thick, the fiber paper is 5mm thick, the steel plate is 6mm thick, and the thermal conductivity of the nanofiber board is 0.

028.

6. The aluminum alloy melting and transfer equipment according to claim 5, characterized in that: The casting material is made of high-temperature resistant, corrosion-resistant, and non-stick aluminum, and the transport base has a frame structure.

7. The aluminum alloy melting and transfer equipment according to claim 6, characterized in that: A fume hood is installed above the furnace feed inlet and at the top of the observation section, and the fume hood is connected through a flue pipe.

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