Electric heating system for aluminum alloy refining

Abstract

The invention provides an electric heating system for aluminum alloy refining, and relates to the technical field of aluminum alloy refining. The smelting furnace comprises a frame body, a furnace body assembly, a control assembly, a lifting device, a hopper assembly, a stirring assembly and a driving assembly, and the furnace body assembly is arranged on the frame body and used for providing a smelting container and temperature; the control assembly is arranged at the lower part of the frame body and is used for controlling the furnace body assembly to pour a smelted product; the lifting device is arranged on the frame body and used for providing a lifting function; the hopper assembly is arranged on the top of the furnace body assembly and used for adding materials and providing an extraction end. The stirring assembly is arranged in the furnace body assembly and is used for stirring materials and fishing dross; the driving assembly is arranged at the top of the furnace body assembly and used for providing autorotation power for the stirring assembly. And by arranging the driving assembly and the stirring assembly, waste residues on the surface can be fished while the raw materials are stirred, so that the step of manual fishing is omitted, and the refining efficiency of the aluminum alloy raw materials is improved.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy refining technology, specifically to an electric heating system for aluminum alloy refining. Background Technology

[0002] Aluminum alloy refining is a core step in the aluminum alloy smelting process, aiming to eliminate hydrogen, oxide inclusions, and harmful elements from the melt, thereby improving casting quality and material properties. Related technologies, such as the heat-resistant cast aluminum alloy and its preparation method described in CN109136692B, propose ZL201A and ZL208 alloys. During the refining of these aluminum alloys, slag is generated. A common method is to manually remove the slag floating on the surface of the molten aluminum using skimming tools. For example, an aluminum alloy refining furnace stirring device with announcement number CN204495095U includes a base plate, a column, a heat insulation cap, and a pad. The column is fixedly installed on the base plate and has a rack on its side. The disc-shaped heat insulation cap is connected to a connecting sleeve and is movably fitted onto the column through the connecting sleeve. A lifting motor and a gear are installed on the heat insulation cap disc on the side of the connecting sleeve, and the gear meshes with the rack. A stirring motor and a stirrer are provided in the middle of the heat insulation cap. The pad is placed between the refining furnace and the upper surface of the base plate.

[0003] The above-mentioned device ensures that the aluminum alloy raw materials can be fully dissolved by stirring, but it does not have the function of removing waste residue, which is not conducive to the refining operation of aluminum alloy raw materials. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an electric heating system for aluminum alloy refining, which solves the problem that the stirring blades do not have the function of removing slag.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an electric heating system for aluminum alloy refining, comprising a frame, and further comprising: A furnace body assembly, mounted on a frame, for providing a container and temperature for melting; A control component, located at the lower part of the frame, is used to control the tilting of the furnace body components to melt the products; A lifting device, which is mounted on the frame, is used to provide lifting functionality; A hopper assembly, located at the top of the furnace body assembly, is used for material feeding and provides an extraction end; A stirring assembly, located inside the furnace body assembly, is used to stir materials and remove scum; A drive assembly, located at the top of the furnace body assembly, provides rotational power to the stirring assembly. Through the drive assembly and stirring assembly, the raw materials can be stirred while surface slag is removed, eliminating the need for manual removal and improving the refining efficiency of aluminum alloy raw materials.

[0006] Preferably, the furnace body assembly includes a furnace body, a heating element is installed inside the furnace body, a furnace cover is provided on the upper part of the furnace body, a top frame is fixedly connected to the furnace cover, a tilting spout is provided on the upper part of the furnace body, and the top frame is fixedly connected to the lifting end of the lifting device.

[0007] Preferably, the control component includes a servo motor, the output end of which is fixedly connected to a power gear, a control gear meshing with the outer side of the power gear, and a control shaft fixedly connected to the control gear; the control shaft passes through the frame and is fixedly connected to the furnace body.

[0008] Preferably, the drive assembly includes a drive motor, the output end of which is fixedly connected to a drive gear, and the outer side of the drive gear is meshed with a driven gear; the drive motor is mounted on the furnace cover.

[0009] Preferably, the hopper assembly includes a feeding hopper, on which an exhaust channel is fixedly connected, and the exhaust channel is connected to an external exhaust device; the feeding hopper is fixedly installed on the furnace cover.

[0010] Preferably, the stirring assembly includes a hollow upper shaft, a hollow lower shaft fixedly connected to the lower part of the hollow upper shaft, and a dispersing element for dispersing gas at the bottom of the hollow lower shaft; an upper plate fixedly connected to the hollow upper shaft, the upper plate having evenly distributed vent holes, a lower plate at the lower part of the upper plate, the lower plate rotatably engaging with the hollow lower shaft, a bottom stop evenly fixedly connected to the circumference of the lower plate, a control block fixedly connected to the outer side of the bottom stop, a scooping bucket above the bottom stop, the scooping bucket being fixedly connected to the upper plate, a limiting upper plate fixedly connected to the lower part of the scooping bucket, a limiting lower plate fixedly connected to the side of the bottom stop near the limiting upper plate, a spring sheet fixedly connected between the limiting upper plate and the limiting lower plate, a scooping opening at the upper part of the scooping bucket, and the upper part of the hollow upper shaft connected to an external gas source pipe via a rotary joint; the driven gear is fixedly connected to the hollow upper shaft.

[0011] Preferably, the dispersion component includes a bottom shell fixedly installed on the lower part of the hollow lower shaft, a cone block fixedly connected to the bottom of the bottom shell, and air outlets uniformly provided on the circumferential surface of the bottom shell.

[0012] This invention provides an electric heating system for aluminum alloy refining. It has the following beneficial effects: 1. The present invention, through the setting of the driving component and the stirring component, can stir the raw materials and remove the waste residue on the surface at the same time, thereby eliminating the manual removal step and improving the refining efficiency of aluminum alloy raw materials.

[0013] 2. The present invention, through its frame and control components, can control the tilting of the furnace components to melt products, thereby increasing the safety of the tilting operation. Attached Figure Description

[0014] Figure 1 This is a perspective view of the entire invention; Figure 2 This is a front view of the entire invention; Figure 3 This is a cross-sectional perspective view of the furnace body assembly of the present invention; Figure 4 This is a perspective view of the stirring assembly of the present invention; Figure 5 This is a cross-sectional perspective view of the stirring assembly of the present invention; Figure 6 This is a bottom view of the lower and upper disks of the present invention in a connected state; Figure 7 This is a three-dimensional view showing the disassembled bucket and bottom baffle of the present invention.

[0015] The components include: 1. Frame; 2. Furnace body assembly; 3. Control assembly; 4. Lifting device; 5. Drive assembly; 6. Hopper assembly; 7. Stirring assembly; 201. Furnace body; 202. Heating element; 203. Furnace cover; 204. Tilting spout; 205. Top frame; 301. Control shaft; 302. Control gear; 303. Power gear; 304. Servo motor; 501. Drive motor; 502. Drive gear; 503. Driven gear. 504. Rotary joint; 601. Feed hopper; 602. Air extraction channel; 701. Hollow upper shaft; 702. Upper plate; 703. Vent hole; 704. Scoop bucket; 705. Lower plate; 706. Control block; 707. Spring piece; 708. Bottom shell; 709. Air outlet; 710. Cone block; 7041. Scoop opening; 7042. Upper limiting plate; 7051. Bottom stop; 7052. Lower limiting plate; 7011. Hollow lower shaft. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figures 1-7As shown, this embodiment of the invention provides an electric heating system for aluminum alloy refining, including a frame 1. The frame 1 is used to provide stable support for the whole, ensuring the stability and safety of the smelting operation.

[0018] Also includes: refer to Figure 1 , Figure 3 Furnace body assembly 2, which is mounted on frame 1, is used to provide a container and temperature for melting. Furnace body assembly 2 includes furnace body 201, heating element 202 installed inside furnace body 201, furnace cover 203 provided on the upper part of furnace body 201, top frame 205 fixedly connected to furnace cover 203, and tilting spout 204 provided on the upper part of furnace body 201. Top frame 205 is fixedly connected to the lifting end of lifting device 4. The furnace body 201 is used to place the aluminum alloy raw materials to be melted; the furnace cover 203 is used to cover the furnace body 201 to prevent external objects from falling into the furnace body 201 and improve the safety of the melting process; the pouring spout 204 is used to pour out the raw materials after melting; the heating element 202 is used to provide the temperature required for melting, and a resistance heater can be used.

[0019] refer to Figure 1 , Figure 2 The control component 3 is located at the lower part of the frame 1 and is used to control the tilting of the furnace body component 2 to melt the products. The control component 3 includes a servo motor 304, the output end of which is fixedly connected to a power gear 303. A control gear 302 meshes with the outer side of the power gear 303, and a control shaft 301 is fixedly connected to the control gear 302. The control shaft 301 passes through the frame 1 and is fixedly connected to the furnace body 201. During the tilting operation, the servo motor 304 operates under the control of the external power supply and controller, driving the power gear 303 to rotate. The power gear 303 drives the control gear 302, which in turn drives the control shaft 301 to rotate. The control shaft 301 then drives the furnace body 201 to rotate. To ensure the stability of the tilting process, a brake is installed on the servo motor 304 to brake the furnace body 201 and improve the stability of the tilting.

[0020] refer to Figure 2 Lifting device 4 is installed on frame 1 and is used to provide lifting function; lifting device 4 can be a hydraulic cylinder, which uses hydraulic pressure to provide strong lifting force.

[0021] refer to Figure 2 , Figure 3 The hopper assembly 6 is located on the top of the furnace body assembly 2 and is used for material feeding and providing an extraction end. The hopper assembly 6 includes a feeding hopper 601, on which an extraction channel 602 is fixedly connected. The extraction channel 602 is connected to an external extraction device. The feeding hopper 601 is fixedly installed on the furnace cover 203. During the feeding operation, aluminum alloy materials can be added from the feeding hopper 601 and fall into the furnace body 201 under the action of gravity; during the exhaust operation, the external exhaust device can extract the waste gas through the exhaust channel 602.

[0022] refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 A stirring assembly 7 is installed inside the furnace body assembly 2 and is used to stir materials and remove scum. The stirring assembly 7 includes a hollow upper shaft 701, and a hollow lower shaft 7011 is fixedly connected to the lower part of the hollow upper shaft 701. The bottom of the hollow lower shaft 7011 is provided with a dispersing component for dispersing gas. The dispersing component includes a bottom shell 708 fixedly installed on the lower part of the hollow lower shaft 7011. A cone block 710 is fixedly connected to the bottom of the bottom shell 708. Gas outlets 709 are evenly provided on the circumferential surface of the bottom shell 708. The hollow upper shaft 701 drives the hollow lower shaft 7011 to rotate, and the hollow lower shaft 7011 drives the bottom shell 708 and the cone block 710 to rotate. The injected inert gas enters the bottom shell 708 through the hollow upper shaft 701 and the hollow lower shaft 7011, then encounters the cone block 710, and then is discharged from the gas outlet 709, thus completing the gas refining step.

[0023] refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 An upper plate 702 is fixedly connected to a hollow upper shaft 701. Ventilation holes 703 are evenly distributed on the upper plate 702. A lower plate 705 is located at the lower part of the upper plate 702, and the lower plate 705 rotatably engages with the hollow lower shaft 7011. A bottom stop 7051 is evenly fixedly connected to the circumference of the lower plate 705. A control block 706 is fixedly connected to the outer side of the bottom stop 7051. A scoop 704 is located above the bottom stop 7051 and is fixedly connected to the upper plate 702. The lower part of 704 is fixedly connected to the upper limiting plate 7042, and the side of the bottom stop 7051 near the upper limiting plate 7042 is fixedly connected to the lower limiting plate 7052. A spring piece 707 is fixedly connected between the upper limiting plate 7042 and the lower limiting plate 7052. The upper part of the scoop 704 is provided with a scooping opening 7041. The upper part of the hollow upper shaft 701 is connected to an external air source pipeline through a rotary joint 504. The driven gear 503 is fixedly connected to the hollow upper shaft 701. When scum is being retrieved, the hollow upper shaft 701 and the hollow lower shaft 7011 drive the upper plate 702, the scoop bucket 704, and the bottom baffle 7051 to rotate. At this time, due to the elastic force of the spring piece 707, the bottom baffle 7051 and the scoop bucket 704 are in the same position. The scoop bucket 704 is used to scoop the waste scum floating on the liquid surface into the scooping port 7041. When slag removal is required, the furnace cover 203 and stirring assembly 7 are raised by the lifting device 4. A waste slag receiving container is placed below the stirring assembly 7. Then, the bottom baffle 7051 and lower plate 705 are rotated by the control block 706, compressing the spring 707. At this time, the bottom baffle 7051 and the scoop 704 are misaligned, and the lower part of the scoop 704 is open. The waste slag falls under the action of gravity, thus completing the slag removal operation. The slag removal process does not affect the normal progress of smelting and improves smelting efficiency.

[0024] refer to Figure 1 , Figure 3 The drive assembly 5 is located on the top of the furnace body assembly 2 and is used to provide rotation power. The drive assembly 5 includes a drive motor 501, the output end of which is fixedly connected to a drive gear 502, and the outer side of the drive gear 502 is meshed with a driven gear 503. The drive motor 501 is mounted on the furnace cover 203. During operation, the drive motor 501 operates under the control of the external power supply and controller, driving the drive gear 502 to rotate. The drive gear 502 drives the driven gear 503 to rotate, thereby driving the hollow upper shaft 701 to rotate, providing power for the mixing operation.

[0025] Working principle: When in use, aluminum alloy material can be added from the feeding hopper 601 and falls into the furnace body 201 under the action of gravity; the heating element 202 is powered on and generates heat to melt the raw material; The drive motor 501 operates, driving the drive gear 502 to rotate. The drive gear 502 drives the driven gear 503 to rotate, thereby driving the hollow upper shaft 701 to rotate. The hollow upper shaft 701 drives the hollow lower shaft 7011 to rotate. The hollow lower shaft 7011 drives the bottom shell 708 and the cone block 710 to rotate. The injected inert gas enters the bottom shell 708 through the hollow upper shaft 701 and the hollow lower shaft 7011, then encounters the cone block 710, and then exits from the gas outlet 709, thus completing the gas refining step. Waste residue generated during gas refining floats on the liquid surface. The hollow upper shaft 701 and hollow lower shaft 7011 drive the upper plate 702, the scoop bucket 704, and the bottom baffle 7051 to rotate. At this time, due to the elastic force of the spring piece 707, the bottom baffle 7051 and the scoop bucket 704 are in the same position. The scoop bucket 704 is used to scoop the waste residue floating on the liquid surface into the scooping port 7041. The furnace cover 203 and the stirring assembly 7 are lifted by the lifting device 4. A waste slag receiving container is placed below the stirring assembly 7. Then, the bottom baffle 7051 and the lower plate 705 are rotated by the control block 706, and the spring 707 is compressed. At this time, the bottom baffle 7051 is misaligned with the scoop 704, the lower part of the scoop 704 is open, and the waste slag falls under the action of gravity, thereby completing the slag discharge operation. During the tilting operation, the servo motor 304 works, driving the power gear 303 to rotate. The power gear 303 drives the control gear 302, which in turn drives the control shaft 301 to rotate. The control shaft 301 then drives the furnace body 201 to rotate, causing the molten product to be tilted out from the tilting spout 204.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric heating system for aluminum alloy refining, comprising a frame (1), characterized in that, Also includes: Furnace assembly (2), which is mounted on frame (1) and is used to provide a container and temperature for melting; Control component (3), which is located at the lower part of the frame (1), is used to control the furnace body component (2) to tilt the smelting product; Lifting device (4), which is mounted on the frame (1) and is used to provide lifting function; Hopper assembly (6), which is located on top of furnace body assembly (2), is used for material feeding and providing an extraction end; A stirring assembly (7) is located inside the furnace body assembly (2) and is used to stir materials and remove scum. The drive assembly (5) is located on top of the furnace body assembly (2) and is used to provide rotational power for the stirring assembly (7).

2. The electric heating system for aluminum alloy refining according to claim 1, characterized in that: The furnace body assembly (2) includes a furnace body (201), a heating element (202) is installed inside the furnace body (201), a furnace cover (203) is provided on the upper part of the furnace body (201), a top frame (205) is fixedly connected to the furnace cover (203), a tilting spout (204) is provided on the upper part of the furnace body (201), and the top frame (205) is fixedly connected to the lifting end of the lifting device (4).

3. The electric heating system for aluminum alloy refining according to claim 2, characterized in that: The control component (3) includes a servo motor (304), the output end of which is fixedly connected to a power gear (303), and a control gear (302) meshes with the outside of the power gear (303). A control shaft (301) is fixedly connected to the control gear (302); the control shaft (301) passes through the frame (1) and is fixedly connected to the furnace body (201).

4. The electric heating system for aluminum alloy refining according to claim 2, characterized in that: The drive assembly (5) includes a drive motor (501), the output end of which is fixedly connected to a drive gear (502), and the outer side of the drive gear (502) is meshed with a driven gear (503); the drive motor (501) is mounted on the furnace cover (203).

5. The electric heating system for aluminum alloy refining according to claim 2, characterized in that: The hopper assembly (6) includes a feeding hopper (601), on which an exhaust channel (602) is fixedly connected, and the exhaust channel (602) is connected to an external exhaust device; the feeding hopper (601) is fixedly installed on the furnace cover (203).

6. The electric heating system for aluminum alloy refining according to claim 4, characterized in that: The stirring assembly (7) includes a hollow upper shaft (701), a hollow lower shaft (7011) is fixedly connected to the lower part of the hollow upper shaft (701), and a dispersing element for dispersing gas is provided at the bottom of the hollow lower shaft (7011); an upper plate (702) is fixedly connected to the hollow upper shaft (701), and air vents (703) are evenly provided on the upper plate (702); a lower plate (705) is provided at the lower part of the upper plate (702), and the lower plate (705) is rotatably engaged with the hollow lower shaft (7011); a baffle (7051) is evenly fixedly connected to the circumference of the lower plate (705), and a control block (706) is fixedly connected to the outer side of the baffle (7051); the baffle... A scooping bucket (704) is provided above the (7051) plate. The scooping bucket (704) is fixedly connected to the upper plate (702). A limiting upper piece (7042) is fixedly connected to the lower part of the scooping bucket (704). A limiting lower piece (7052) is fixedly connected to the side of the bottom plate (7051) near the limiting upper piece (7042). A spring piece (707) is fixedly connected between the limiting upper piece (7042) and the limiting lower piece (7052). A scooping opening (7041) is provided at the upper part of the scooping bucket (704). The upper part of the hollow upper shaft (701) is connected to an external air source pipeline through a rotary joint (504). The driven gear (503) is fixedly connected to the hollow upper shaft (701).

7. The electric heating system for aluminum alloy refining according to claim 6, characterized in that: The dispersion component includes a bottom shell (708) fixedly installed on the lower part of the hollow lower shaft (7011), a cone block (710) fixedly connected to the bottom of the bottom shell (708), and air outlets (709) uniformly provided on the circumferential surface of the bottom shell (708).

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