Secondary aluminum melting equipment

Abstract

The invention relates to the technical field of secondary aluminum processing, in particular to secondary aluminum melting equipment. The communicating ports used for communicating the feeding chamber with the high-temperature chamber are formed in the two sides of the partition wall, the circulating mechanism drives molten aluminum in the feeding chamber and the high-temperature chamber to form rotating vortexes, high-temperature molten aluminum in the high-temperature chamber and the fed molten aluminum in the feeding chamber are subjected to internal circulation through the communicating ports, the molten aluminum circulation mode is changed, and the molten aluminum circulation efficiency is improved. Molten aluminum circulation is only formed in the furnace, a runner outside the furnace is not needed any more, no obvious molten aluminum rolling exists, impurities and oxides are effectively reduced, the melting effect of the feeding chamber is improved, heat losses are reduced, and the machining cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of recycled aluminum processing, in particular to recycled aluminum melting equipment. Background Art

[0002] Recycled aluminum, an aluminum alloy or metal obtained by remelting and refining scrap aluminum, aluminum alloys, or aluminum-containing waste, is a significant source of aluminum. With the continuous advancement of China's national science and technology development strategy, my country's recycled aluminum industry faces new challenges and opportunities. Traditional recycled aluminum processing equipment typically pumps molten aluminum from a dual-chamber furnace or multi-chamber furnace via external flow channels. This high-temperature molten aluminum is susceptible to the generation of impurities and oxides during the pumping process, impacting its quality. Furthermore, the external flow channels can easily cause the molten aluminum to tumble during the pumping process, resulting in poor safety and unfavorable production conditions. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a regenerative aluminum melting device in which aluminum liquid circulation is only formed in the furnace, the generation of impurities and oxides is effectively reduced, and the melting effect of the charging chamber is improved.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention to solve the technical problems is:

[0005] A recycled aluminum melting device, comprising:

[0006] A furnace body, wherein a partition wall is provided inside the furnace body, wherein the partition wall divides the furnace body into a charging chamber and a high-temperature chamber, wherein a regenerative burner is provided in the high-temperature chamber, and communication ports for conducting the charging chamber and the high-temperature chamber are provided on both sides of the partition wall, wherein the aluminum liquid in the charging chamber enters the high-temperature chamber through the communication ports;

[0007] A circulation mechanism is provided on the furnace body and is provided between the feeding chamber and the high-temperature chamber. The circulation mechanism is used to drive the aluminum liquid in the feeding chamber and the high-temperature chamber to form a rotating vortex, so that the high-temperature aluminum liquid in the high-temperature chamber is internally circulated with the feeding aluminum liquid in the feeding chamber through the connecting port.

[0008] In one embodiment of the present invention, the feeding chamber has a feeding port and a slag discharge port, the feeding port is provided with a feeding door, the slag discharge port is provided with a slag removal door, and the feeding door and the slag removal door are respectively provided on the adjacent two side walls of the feeding chamber.

[0009] In one embodiment of the present invention, the communication port is arranged at the bottom of the partition wall, the charging chambers on both sides of the partition wall are at the same height as the bottom of the high-temperature chamber, and the height of the communication port is less than the height of the aluminum liquid in the furnace body.

[0010] In one embodiment of the present invention, the two side edges of the connecting port have guiding slopes, and the connecting port has a high end and a low end so that it has a trapezoidal structure. The high end of the connecting port is connected to the inner wall of the furnace body, and the opening height of the high end is greater than the opening height of the low end.

[0011] In one embodiment of the present invention, the circulation mechanism includes a stirring blade, which is arranged on the bottom surface of the furnace body. The stirring blade is connected to a driver, and the driver drives the stirring blade to rotate to drive the high-temperature aluminum liquid in the high-temperature chamber to perform internal rotation circulation with the feeding aluminum liquid in the feeding chamber through the connecting port.

[0012] In one embodiment of the present invention, the stirring blade is arranged on the bottom surface of the high temperature chamber, and the stirring blade is arranged opposite to the connecting port, and the driver drives the stirring blade to transfer the high temperature aluminum liquid in the high temperature chamber to the feeding chamber through the connecting port.

[0013] In one embodiment of the present invention, a magnetic rotor is provided on the stirring blade, and the magnetic rotor is rotated on the furnace body. An installation chamber is provided at the bottom of the furnace body, and the driver is provided in the installation chamber. The driver is a magnetic pump, and the magnetic pump is arranged opposite to the stirring blade. The magnetic rotor on the magnetic pump rotates to drive the magnetic rotor on the stirring blade to rotate synchronously.

[0014] In one embodiment of the present invention, there are at least two stirring blades, which are arranged in the feeding chamber or the high-temperature chamber, each communication port is arranged opposite to a stirring blade, and each stirring blade has the same rotation direction.

[0015] In one embodiment of the present invention, a slag tapping slope is provided at the slag tapping port, the slag tapping slope is connected to the slag tapping port, the slag tapping port is arranged opposite to the connecting port, and the connecting port is used to allow the molten aluminum in the feeding chamber to flow into the high-temperature chamber.

[0016] In one embodiment of the present invention, the bottom surface of the feeding chamber has a feeding slope and a heating tank for loading the charged aluminum liquid, the feeding slope is connected to the feeding port, and a discharge slope is provided between the feeding slope and the heating tank, the inclination angle of the feeding slope and the heating tank is greater than the inclination angle of the discharge slope and the heating tank, and the length of the feeding slope is 1.5-5 times the length of the discharge slope.

[0017] Beneficial effects of the present invention:

[0018] The partition wall of the present invention is provided with connecting ports for connecting the charging chamber and the high-temperature chamber on both sides. The circulation mechanism drives the aluminum liquid in the charging chamber and the high-temperature chamber to form a rotating vortex, so that the high-temperature aluminum liquid in the high-temperature chamber is internally circulated with the charging aluminum liquid in the charging chamber through the connecting port, thereby changing the aluminum liquid circulation mode. The aluminum liquid circulation is only formed in the furnace, and the flow channel outside the furnace is no longer required and there is no obvious aluminum liquid rolling, which effectively reduces the generation of impurities and oxides, improves the melting effect of the charging chamber, reduces heat loss, and reduces processing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a recycled aluminum melting device of the present invention.

[0020] Figure 2 It is a schematic diagram of the circulation mechanism of the present invention.

[0021] Figure 3 It is a schematic diagram of the feeding chamber of the present invention.

[0022] Explanation of the numbers in the figure: 1. Furnace body; 11. Feeding chamber; 12. High-temperature chamber; 13. Regenerative burner; 14. Partition wall; 2. Feeding port; 21. Feeding door; 22. Feeding slope; 23. Discharging slope; 24. Heating trough; 3. Slag outlet; 31. Slag removal door; 32. Slag outlet slope; 4. Connecting port; 41. High end; 42. Low end; 43. Flue gas duct; 5. Stirring blade; 52. Magnetic pump. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1-3 As shown, a secondary aluminum melting device comprises:

[0025] The furnace body 1 is provided with a partition wall inside, which divides the furnace body 1 into a charging chamber 11 and a high-temperature chamber 12. A regenerative burner 13 is provided in the high-temperature chamber 12. A flue gas channel 43 is provided on the partition wall. Communication ports 4 for connecting the charging chamber 11 and the high-temperature chamber 12 are provided on both sides of the partition wall 14. The aluminum liquid fed into the charging chamber 11 enters the high-temperature chamber 12 through the communication ports 4.

[0026] A circulation mechanism is provided on the furnace body 1 and is provided between the feeding chamber 11 and the high temperature chamber 12. The circulation mechanism is used to drive the aluminum liquid in the feeding chamber 11 and the high temperature chamber 12 to form a rotating vortex, so that the high-temperature aluminum liquid in the high temperature chamber 12 is internally circulated with the feeding aluminum liquid in the feeding chamber 11 through the connecting port 4.

[0027] Both sides of the partition wall of the present invention are provided with connecting ports 4 for connecting the feeding chamber 11 and the high-temperature chamber 12. The circulation mechanism drives the aluminum liquid in the feeding chamber 11 and the high-temperature chamber 12 to form a rotating vortex, so that the high-temperature aluminum liquid in the high-temperature chamber 12 is internally circulated with the feeding aluminum liquid in the feeding chamber 11 through the connecting port 4, thereby changing the aluminum liquid circulation mode. The aluminum liquid circulation is only formed in the furnace, and no flow channel outside the furnace is required and there is no obvious aluminum liquid rolling, which effectively reduces the generation of impurities and oxides, improves the melting effect of the feeding chamber 11, reduces heat loss, and reduces processing costs.

[0028] In one embodiment of the present invention, the feeding chamber 11 has a feeding port 2 and a slag discharge port 3, the feeding port 2 is provided with a feeding door 21, the slag discharge port 3 is provided with a slag removal door 31, and the feeding door 21 and the slag removal door 31 are respectively provided on the adjacent two side walls of the feeding chamber 11.

[0029] Specifically, the feeding door 21 and the slag removal door 31 are respectively arranged on the adjacent two side walls of the feeding chamber 11. Slag removal and feeding do not interfere with each other. Compared with the traditional single opening for feeding and slag discharge, the opening time of the opening is effectively reduced, and the temperature in the furnace is effectively maintained from being lost from the feeding port. At the same time, the feeding and slag discharge are divided into two inlets and outlets, and there is no need to coordinate the feeding and slag discharge accumulation. The number of opening and closing times of the feeding door 21 and the slag removal door 31 can be reduced, which effectively prevents the heat of the furnace body 1 from diffusing outward, and further ensures the temperature in the furnace.

[0030] In one embodiment of the present invention, the connecting port 4 is arranged at the bottom of the partition wall, the feeding chamber 11 on both sides of the partition wall is at the same height as the bottom surface of the high-temperature chamber 12, and the height of the connecting port 4 is less than the height of the aluminum liquid in the furnace body 1.

[0031] Specifically, the connecting port 4 is arranged at the bottom of the partition wall, and the feeding chamber 11 on both sides of the partition wall is at the same height as the bottom surface of the high-temperature chamber 12, which can enable the aluminum liquid in the furnace body 1 to quickly form a rotating vortex, reduce the rotation resistance of the aluminum liquid, and reduce costs; the height of the connecting port 4 is less than the height of the aluminum liquid in the furnace body 1, which not only prevents waste slag from entering the high-temperature chamber 12 through the connecting port 4, but also allows the high-temperature aluminum liquid to circulate with the feeding aluminum liquid at the bottom. The high-temperature aluminum liquid enters the bottom of the feeding aluminum liquid to maintain the heat of the high-temperature aluminum liquid, so that the feeding aluminum liquid is maintained at a higher temperature to melt the aluminum material, thereby improving the melting efficiency.

[0032] In one embodiment of the present invention, the two side edges of the connecting port 4 have guiding slopes, and the connecting port 4 has a high end 41 and a low end 42 so that it has a trapezoidal structure. The high end 41 of the connecting port 4 is connected to the inner wall of the furnace body 1, and the opening height of the high end 41 is greater than the opening height of the low end 42.

[0033] Specifically, the connecting port 4 has a high end 41 and a low end 42 to form a trapezoidal structure. The high end 41 of the connecting port 4 is connected to the inner wall of the furnace body 1. Driven by the rotating vortex of the aluminum liquid, the high-temperature aluminum liquid in the high-temperature chamber 12 flows into the feeding chamber 11 through the connecting port 4, and the feeding aluminum liquid in the feeding chamber 11 flows into the high-temperature chamber 12 through the connecting port 4 for high-temperature heating. Due to the centrifugal force of the rotating vortex, the aluminum liquid will form a certain flow differential inside and outside the rotating vortex. The high end 41 of the connecting port 4 is connected to the inner wall of the furnace body 1, which can make the aluminum liquid pass through the connecting port 4 quickly, reduce the obstruction of the partition wall, and improve the circulation effect.

[0034] In one embodiment of the present invention, the circulation mechanism includes a stirring blade 5, which is arranged on the bottom surface of the furnace body 1. The stirring blade 5 is connected to a driver, and the driver drives the stirring blade 5 to rotate to drive the high-temperature aluminum liquid in the high-temperature chamber 12 to perform internal rotation circulation with the feeding aluminum liquid in the feeding chamber 11 through the connecting port 4.

[0035] Specifically, after the aluminum material enters the heating tank 24 loaded with the charging aluminum liquid and melts, the driver mobilizes the stirring blade 5 to rotate so that the high-temperature aluminum liquid in the high-temperature chamber 12 flows into the charging chamber 11 through the connecting port 4, so that the charging aluminum liquid continues to maintain a high-temperature molten aluminum liquid. At the same time, the charging aluminum liquid in the charging chamber 11 also flows into the high-temperature chamber 12 through the connecting port 4 for high-temperature heating, so that the aluminum liquid in the furnace body 1 forms a rotating vortex, and the aluminum liquid inside it circulates rapidly internally, thereby quickly melting the furnace charge in the charging chamber 11. Compared with the traditional external flow channel structure, it effectively avoids the large temperature difference between the aluminum liquid flowing in the high-temperature chamber 12 and the charging chamber 11, affecting the melting effect of the charging chamber 11, reducing heat loss, and reducing processing costs.

[0036] In one embodiment of the present invention, the stirring blade 5 is arranged on the bottom surface of the high temperature chamber 12, and the stirring blade 5 is arranged opposite to the connecting port 4. The driver drives the stirring blade 5 to transfer the high temperature aluminum liquid in the high temperature chamber 12 to the feeding chamber 11 through the connecting port 4.

[0037] Specifically, the stirring blade 5 is arranged on the bottom surface of the high-temperature chamber 12, and can only rotate and stir the high-temperature aluminum liquid without the possibility of contacting the aluminum material, ensuring that the aluminum liquid in the furnace body 1 can rotate and circulate at a uniform speed. The stirring blade 5 is arranged opposite to the connecting port 4, and only the high-temperature aluminum liquid at the connecting port 4 is transmitted to the feeding chamber 11, effectively increasing the transmission pressure of the high-temperature aluminum liquid and increasing the forming effect of the vortex, so that a larger vortex is formed in the feeding chamber 11 than that in the high-temperature chamber 12, thereby improving the melting effect of the feeding chamber 11.

[0038] In one embodiment of the present invention, a magnetic rotor is provided on the stirring blade 5, and the magnetic rotor is rotated on the furnace body 1. An installation chamber is provided at the bottom of the furnace body 1, and the driver is provided in the installation chamber. The driver is a magnetic pump 52, and the magnetic pump 52 is arranged opposite to the stirring blade 5. The magnetic rotor on the magnetic pump 52 rotates to drive the magnetic rotor on the stirring blade 5 to rotate synchronously.

[0039] Specifically, the magnetic rotor on the magnetic pump 52 rotates to drive the magnetic rotor on the stirring blade 5 to rotate synchronously, so that the high-temperature aluminum liquid in the high-temperature chamber 12 is transferred to the feeding chamber 11 without contact, and the filter material in the feeding chamber 11 is quickly melted.

[0040] In one embodiment of the present invention, there are at least two stirring blades 5, and the stirring blades 5 are arranged in the feeding chamber 11 or the high-temperature chamber 12. Each communication port 4 is arranged opposite to a stirring blade 5, and each stirring blade 5 has the same rotation direction.

[0041] Specifically, each stirring blade 5 corresponds to the connecting port 4, which can enable the aluminum liquid in the furnace body 1 to form an effect of synchronously transmitting the aluminum liquid at both ends of the connecting port 4, which is more conducive to the circulation of the aluminum liquid, and the efficiency of the mutual exchange of the aluminum liquid is higher. There is no need for an external flow channel of the furnace and there is no obvious rolling of the aluminum liquid, which effectively reduces the generation of impurities and oxides.

[0042] In one embodiment of the present invention, a slag discharge slope 32 is provided at the slag discharge port 3, and the slag discharge slope 32 is connected to the slag discharge port 3. The slag discharge port 3 is arranged opposite to the connecting port 4, and the connecting port 4 is used to allow the charged aluminum liquid in the charging chamber 11 to flow into the high-temperature chamber 12.

[0043] Specifically, a slag discharge slope 32 is provided at the slag discharge port 3. Since the slag discharge port 3 and the connecting port 4 are arranged opposite to each other, and the connecting port 4 causes the charged aluminum liquid in the charging chamber 11 to flow into the high-temperature chamber 12 under the drive of the rotating vortex of the aluminum liquid, the waste slag after the aluminum material in the charging chamber 11 is melted can flow to the slag discharge port 3 under the drive of the rotating vortex, and at the same time, under a certain centrifugal force of the rotating vortex, the waste slag is directly thrown onto the slag discharge slope 32 with a reasonable inclination angle, so that the waste slag is quickly discharged. At the same time, the waste slag is directly thrown onto the slag discharge slope 32 and accumulated, which can reduce the number of times the slag discharge port 3 is opened and closed, and effectively prevent the heat of the furnace body 1 from diffusing outward.

[0044] In one embodiment of the present invention, the bottom surface of the feeding chamber 11 has a feeding slope 22 and a heating tank 24 for loading the charged aluminum liquid. The feeding slope 22 is connected to the feeding port 2, and a discharge slope 23 is provided between the feeding slope 22 and the heating tank 24. The inclination angle of the feeding slope 22 and the heating tank 24 is greater than the inclination angle of the discharge slope 23 and the heating tank 24, and the length of the feeding slope 22 is 1.5-5 times the length of the discharge slope 23.

[0045] Specifically, the charged aluminum material is pushed so that the aluminum material falls through the discharge slope 23 to the heating tank 24 loaded with the charged aluminum liquid for melting. The inclination angle of the charging slope 22 is greater than the inclination angle of the discharge slope 23, which can make the aluminum shell discharge quickly, avoid the accumulation of aluminum material, and improve the melting efficiency.

[0046] The length of the feeding slope 22 is 1.5-5 times the length of the unloading slope 23. The longer feeding slope 22 can store more aluminum materials and accumulate them in the heating chamber, which can reduce the number of times the feeding door 21 is opened and closed, effectively preventing the heat of the furnace body 1 from diffusing outward, and effectively maintaining the temperature in the furnace from being lost from the feed port, thereby ensuring the temperature in the furnace. At the same time, the aluminum materials accumulated on the feeding slope 22 can be preheated to a certain extent. The preheated aluminum materials can be quickly melted when entering the feeding aluminum liquid, thereby improving the melting efficiency and reducing the temperature drop of the feeding aluminum liquid. The shorter length of the unloading slope 23 can not only quickly drop the aluminum materials into the heating tank 24, but also allow the aluminum materials on the feeding slope 22 to enter the feeding aluminum liquid in small batches, thereby avoiding the accumulation of large quantities of aluminum materials in the feeding aluminum liquid and affecting the melting efficiency.

[0047] The aluminum material can be preheated and dried on the feeding slope 22, and the volatile matter on the surface of the material will be fully decomposed and ensure that the material is completely dried before being put into the heating tank 24 to avoid safety accidents.

[0048] The present invention can achieve direct wet melting of relatively dry bulk materials, packaged materials and other process waste materials, avoiding cumbersome pre-treatment steps, ensuring the safety of the melting process, improving production efficiency, and reducing the maintenance cost and difficulty of the equipment.

[0049] Usage process

[0050] Open the feeding door 21 on the feeding chamber 11, and let the aluminum material to be melted enter the feeding chamber 11 through the feeding port 2. The aluminum material moves to the feeding slope 22, and is pushed by the subsequent aluminum material to be fed, so that the aluminum material falls through the unloading slope 23 to the heating tank 24 loaded with the charged aluminum liquid for melting. The inclination angle of the feeding slope 22 is greater than the inclination angle of the unloading slope 23, which can make the aluminum shell unload quickly, avoid the accumulation of aluminum material, and improve the melting efficiency. At the same time, the length of the feeding slope 22 is 1.5-5 times the length of the unloading slope 23. The longer feeding slope 22 can store more aluminum material and accumulate in the heating chamber The number of times the charging door 21 is opened and closed can be reduced, and the heat of the furnace body 1 can be effectively prevented from diffusing outward, and the temperature in the furnace can be effectively maintained from being lost from the charging port, thereby ensuring the temperature in the furnace. At the same time, the aluminum material is accumulated on the charging slope 22, which can be preheated to a certain extent. The preheated aluminum material enters the charging aluminum liquid and can be quickly melted, thereby improving the melting efficiency and reducing the temperature drop of the charging aluminum liquid. The shorter length of the discharge slope 23 can not only quickly drop the aluminum material into the heating tank 24, but also allow the aluminum material on the charging slope 22 to enter the charging aluminum liquid in small batches, thereby avoiding the accumulation of large quantities of aluminum material in the charging aluminum liquid and affecting the melting efficiency.

[0051] After the aluminum material enters the heating tank 24 loaded with the charging aluminum liquid and melts, the magnetic rotor on the magnetic pump 52 at the bottom of the furnace body 1 rotates to drive the magnetic rotor on the stirring blade 5 to rotate synchronously, so that the high-temperature aluminum liquid in the high-temperature chamber 12 flows into the charging chamber 11 through the connecting port 4, so that the charging aluminum liquid continues to maintain a high-temperature melted aluminum liquid. At the same time, the magnetic rotor on the stirring blade 5 rotates synchronously and also flows the charging aluminum liquid in the charging chamber 11 into the high-temperature chamber 12 through the connecting port 4 for high-temperature heating, so that the aluminum liquid in the furnace body 1 forms a rotating vortex, and the aluminum liquid inside it circulates rapidly internally, thereby quickly melting the furnace charge in the charging chamber 11. Compared with the traditional external flow channel structure, it effectively avoids the large temperature difference between the aluminum liquid flowing in the high-temperature chamber 12 and the charging chamber 11, which affects the melting effect of the charging chamber 11, reduces heat loss, and reduces processing costs.

[0052] A slag discharge slope 32 is provided at the slag discharge port 3. Since the slag discharge port 3 is arranged opposite to the connecting port 4, and the connecting port 4 causes the charged aluminum liquid in the charging chamber 11 to flow into the high-temperature chamber 12 under the drive of the rotating vortex of the aluminum liquid, the waste slag after the aluminum material in the charging chamber 11 is melted can be driven by the rotating vortex to flow to the slag discharge port 3. At the same time, under a certain centrifugal force of the rotating vortex, the waste slag is directly thrown onto the slag discharge slope 32 with a reasonable inclination angle, so that the waste slag is quickly discharged. At the same time, the waste slag is directly thrown onto the slag discharge slope 32 and accumulated, which can reduce the number of opening and closing times of the slag discharge port 3, and effectively prevent the heat of the furnace body 1 from diffusing outward.

[0053] The charging door 21 and the slag removal door 31 are respectively arranged on the adjacent two side walls of the charging chamber 11. Compared with the traditional single opening for charging and discharging, the opening time of the opening is effectively reduced, and the temperature in the furnace is effectively maintained from being lost from the feeding port. At the same time, the charging and discharging are divided into two inlets and outlets, and there is no need to coordinate the charging and discharging accumulation. The number of opening and closing times of the charging door 21 and the slag removal door 31 can be reduced, which effectively prevents the heat of the furnace body 1 from diffusing outward, further ensuring the temperature in the furnace.

[0054] The above embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A recycled aluminum melting device, characterized in that: include: A furnace body, wherein a partition wall is provided inside the furnace body, wherein the partition wall divides the furnace body into a charging chamber and a high-temperature chamber, wherein a regenerative burner is provided in the high-temperature chamber, and communication ports for conducting the charging chamber and the high-temperature chamber are provided on both sides of the partition wall, wherein the aluminum liquid in the charging chamber enters the high-temperature chamber through the communication ports; A circulation mechanism is provided on the furnace body and is provided between the feeding chamber and the high-temperature chamber. The circulation mechanism is used to drive the aluminum liquid in the feeding chamber and the high-temperature chamber to form a rotating vortex, so that the high-temperature aluminum liquid in the high-temperature chamber is internally circulated with the feeding aluminum liquid in the feeding chamber through the connecting port.

2. The secondary aluminum melting equipment according to claim 1, characterized in that The feeding chamber is provided with a feeding port and a slag discharge port. The feeding port is provided with a feeding door, and the slag discharge port is provided with a slag removal door. The feeding door and the slag removal door are respectively provided on adjacent two side walls of the feeding chamber.

3. The secondary aluminum melting equipment according to claim 1, characterized in that The communication port is arranged at the bottom of the partition wall, the charging chambers on both sides of the partition wall are at the same height as the bottom of the high-temperature chamber, and the height of the communication port is less than the height of the aluminum liquid in the furnace body.

4. The secondary aluminum melting equipment according to claim 1, characterized in that The two side edges of the connecting port have guiding slopes, and the connecting port has a high end and a low end to make it a trapezoidal structure. The high end of the connecting port is connected to the inner wall of the furnace body, and the opening height of the high end is greater than the opening height of the low end.

5. The secondary aluminum melting equipment according to claim 1, characterized in that: The circulation mechanism includes a stirring blade, which is arranged on the bottom surface of the furnace body. The stirring blade is connected to a driver. The driver drives the stirring blade to rotate to drive the high-temperature aluminum liquid in the high-temperature chamber to perform internal rotation circulation with the feeding aluminum liquid in the feeding chamber through the connecting port.

6. The secondary aluminum melting equipment according to claim 5, characterized in that The stirring blade is arranged on the bottom surface of the high temperature chamber, and the stirring blade is arranged opposite to the communication port. The driver drives the stirring blade to transfer the high temperature aluminum liquid in the high temperature chamber to the feeding chamber through the communication port.

7. The secondary aluminum melting equipment according to claim 5, characterized in that A magnetic rotor is provided on the stirring blade, and the magnetic rotor is rotated on the furnace body. An installation chamber is provided at the bottom of the furnace body. The driver is provided in the installation chamber. The driver is a magnetic pump. The magnetic pump is arranged opposite to the stirring blade. The magnetic rotor on the magnetic pump rotates to drive the magnetic rotor on the stirring blade to rotate synchronously.

8. The secondary aluminum melting equipment according to claim 5, characterized in that: The number of the stirring blades is at least two, and the stirring blades are arranged in the feeding chamber or the high-temperature chamber. Each communication port is arranged opposite to a stirring blade, and each stirring blade has the same rotation direction.

9. The secondary aluminum melting equipment according to claim 2, characterized in that: The slag outlet is provided with a slag discharge slope, the slag discharge slope is connected to the slag outlet, the slag outlet is arranged opposite to the connecting port, and the connecting port is used to allow the aluminum liquid in the feeding chamber to flow into the high-temperature chamber.

10. The secondary aluminum melting equipment according to claim 2, characterized in that: The bottom surface of the feeding chamber has a feeding slope and a heating tank for loading the charged aluminum liquid. The feeding slope is connected to the feeding port. A discharge slope is provided between the feeding slope and the heating tank. The inclination angle of the feeding slope and the heating tank is greater than the inclination angle of the discharge slope and the heating tank, and the length of the feeding slope is 1.5-5 times the length of the discharge slope.

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