Aluminum ingot melting furnace

Abstract

The present invention relates to the technical field of melting furnaces, and specifically to an aluminum ingot melting furnace, comprising a furnace body, a buffer system, and a conveying system; the furnace body comprises a feeding nozzle on which multiple rows of flame nozzles are evenly arranged on the inner wall of the furnace body and arranged at the bottom of the inner wall of the furnace body; the flame nozzles face the center of the furnace body; the feeding nozzle faces the center of the bottom of the inner wall of the furnace body; the buffer system comprises a gas cylinder, a storage hopper, and a feeding pipe, and the gas cylinder is connected to the multiple flame nozzles; one end of the feeding pipe is connected to the feeding nozzle, and the other end is connected to the gas cylinder, and the storage hopper is located above the feeding pipe and connected to the feeding pipe; the aluminum particles in the storage hopper form a buffer pile under the falling aluminum ingot for buffering; the present invention sets a buffer system in conjunction with the conveying system, and combines the flame nozzles so that the falling aluminum ingot can be blown to the vicinity of the axis of the furnace body by the airflow under the action of the gas, and the discharged aluminum particles can form a buffer pile under the falling aluminum ingot, so as to buffer the aluminum ingot and avoid damaging the furnace body.

Description

Technical Field

[0001] The present invention relates to the technical field of melting furnaces, in particular to an aluminum ingot melting furnace. Background Art

[0002] The basic material of alloys such as silicon-aluminum-carbon alloy, silicon-zirconium-aluminum alloy, high-silicon-aluminum alloy, and silicon-aluminum-titanium alloy is aluminum. The preparation of various alloys mostly adopts mechanical stirring method, that is, during the stirring process, the reinforcement particles are added to the base metal liquid (aluminum liquid / aluminum water), and the reinforcement is evenly mixed into the base metal liquid by using a high-speed rotating stirring device, and then poured into the mold to obtain the desired casting; in the production process, the aluminum ingot needs to be melted to obtain aluminum liquid. The existing melting device directly heats the aluminum ingot until it melts. In order to achieve high In order to achieve efficient smelting, the volume of the melting furnace is very large, which makes the melting furnace very deep. The traditional feeding process is to manually lift the ingot to the furnace mouth and feed it into the furnace from the back of the furnace mouth. The work intensity is high. Each aluminum ingot ranges from 10kg to 20kg. When the aluminum ingot freely falls from the melting furnace to the bottom of the melting furnace, the gravitational potential energy will cause an impact on the bottom of the melting furnace, or after a collision, it may rebound and hit the furnace wall, which may damage the melting furnace and then cause the equipment to stop working. Therefore, an aluminum ingot melting furnace that can prevent the aluminum ingot from being damaged is needed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an aluminum ingot melting furnace which can prevent the aluminum ingot from being damaged.

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

[0005] An aluminum ingot melting furnace comprises a furnace body, a buffer system, and a conveying system;

[0006] The furnace body includes an opening at the top, multiple rows of flame nozzles evenly arranged on the inner wall of the furnace body, and a feed nozzle arranged at the bottom of the inner wall of the furnace body; each row of the flame nozzles includes multiple evenly distributed gas nozzles, and the gas outlet direction of the gas nozzles is toward the center of the furnace body; the feed nozzle is toward the center of the bottom of the inner wall of the furnace body;

[0007] The buffer system includes a gas cylinder, a storage hopper, a feed pipe, a first valve, a second valve, and a heat-insulating valve. The gas cylinder is connected to a plurality of flame nozzles via the first valve. One end of the feed pipe is connected to the feed nozzle via the heat-insulating valve, and the other end is connected to the gas cylinder via the second valve. The feed pipe is placed horizontally, and the storage hopper is located above the feed pipe and connected to the feed pipe. Aluminum particles stored in the storage hopper enter the feed pipe under the action of gravity.

[0008] The conveying system includes a conveyor for conveying aluminum ingots, the conveyor includes an output end, the output end is located above the opening, and the conveyor runs at a uniform speed; when the first aluminum ingot falls from the opening through the conveyor, the first valve, the second valve and the insulation valve are opened, and the opening of the first valve causes the airflow generated by the multiple flame nozzles to concentrate the falling path of the aluminum ingot near the axis of the furnace body; the opening of the second valve causes the aluminum particles in the storage hopper to be discharged from the feeding pipe and the feeding nozzle through the airflow to form a buffer pile under the falling first aluminum ingot for buffering, and then the second valve and the insulation valve are closed; when subsequent aluminum ingots fall from the opening through the conveyor, the first valve is kept open so that the falling aluminum ingots hit other aluminum ingots already in the furnace body for buffering.

[0009] Preferably, the aluminum ingot melting furnace further comprises a smelting pool, the bottom of the inner wall of the furnace body is arranged to be inclined downward and connected to the smelting pool, and the side connected to the smelting pool is the lower side.

[0010] Preferably, the aluminum particles are one or more of cuboid particles or cubic particles;

[0011] When the aluminum particles are rectangular particles, the longest side of the aluminum particles does not exceed 8 mm, and the shortest side is not less than 3 mm;

[0012] When the aluminum particles are cubic particles, the side length of the aluminum particles ranges from 3 mm to 8 mm.

[0013] Preferably, the feeding nozzle is arranged toward the center of the bottom of the inner wall of the furnace body and close to one side of the smelting pool.

[0014] Preferably, the aluminum ingot melting furnace further includes a gas system, the gas system includes a gas pipe and a third valve, and the gas pipe is connected to the flame nozzle through the third valve.

[0015] Preferably, the aluminum ingot melting furnace is ignited by a laser igniter.

[0016] Preferably, the first valve is connected to the plurality of flame nozzles via a gas mixing pipe, and a heater is provided in the gas mixing pipe.

[0017] Preferably, the furnace body further comprises a cover body and a circulation fan, the cover body is provided with a circulation port and a feeding port for conveying by a conveyor, and the circulation port, circulation fan, gas mixing pipe and flame nozzle are connected in sequence.

[0018] Preferably, the storage hopper is provided with a sealing cover, and the sealing cover is transparent.

[0019] Preferably, the buffer system further comprises an air compressor, and the air compressor is connected to the gas cylinder.

[0020] The beneficial effects of the present invention are as follows: by setting up a buffer system in conjunction with a conveying system, and then combining it with a flame nozzle, the existing structure can be used as a gas nozzle when not burning, so that when the first valve is opened, the falling aluminum ingot can be blown to the vicinity of the axis of the furnace body by the action of the gas, and combined with the feeding nozzle facing the center of the bottom of the inner wall of the furnace body, the discharged aluminum particles can form a buffer pile under the first falling aluminum ingot, which cushions the aluminum ingot and avoids damaging the furnace body. In addition, the aluminum material is relatively soft and can absorb impact well, and will not cause other impurities. Aluminum particles are only needed when the first aluminum ingot falls, and the cost is low. Controllable; keeping the first valve open when subsequent aluminum ingots fall can make the falling route relatively fixed, and can hit other aluminum ingots already in the furnace body to provide cushioning. The impact can destroy the oxide layer on the surface of the aluminum ingot, improve the heat transfer effect and facilitate subsequent melting, killing two birds with one stone; when the aluminum ingot freely falls and hits other aluminum ingots, it may rebound (the probability of rebound is not high, mainly because the aluminum ingot is soft and absorbs most of the gravitational potential energy through deformation during collision, but it is not absolute), and the open first valve continuously outputs airflow, which can continue to blow the rebounded aluminum ingot toward the center, reducing the rebounded aluminum ingot from hitting the inner wall of the furnace body and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of an aluminum ingot melting furnace according to a specific embodiment of the present invention;

[0022] Explanation of reference numbers: 1. Furnace body; 11. Flame nozzle; 12. Feed nozzle; 13. Cover; 14. Circulation fan; 15. Circulation port; 16. Feed port; 2. Buffer system; 21. Gas cylinder; 22. Storage hopper; 23. Feed pipe; 24. First valve; 25. Second valve; 26. Insulation valve; 27. Mixing pipe; 28. Heater; 3. Conveying system; 4. Buffer pile; 5. Gas pipe; 51. Third valve; 6. Smelting pool; 7. Aluminum ingot. DETAILED DESCRIPTION

[0023] To illustrate the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and accompanying drawings.

[0024] Please refer to Figure 1 , an aluminum ingot 7 melting furnace, comprising a furnace body 1, a buffer system 2, and a conveying system 3;

[0025] The furnace body 1 includes an opening at the top, multiple rows of flame nozzles 11 evenly arranged on the inner wall of the furnace body 1, and a feed nozzle 12 arranged at the bottom of the inner wall of the furnace body 1; each row of the flame nozzles 11 includes multiple evenly distributed gas nozzles, and the gas outlet direction of the gas nozzles is toward the center of the furnace body 1; the feed nozzle 12 is toward the center of the bottom of the inner wall of the furnace body 1;

[0026] The buffer system 2 includes a gas cylinder 21, a storage hopper 22, a feed pipe 23, a first valve 24, a second valve 25, and a thermal insulation valve 26. The gas cylinder 21 is connected to the multiple flame nozzles 11 through the first valve 24; one end of the feed pipe 23 is connected to the feed nozzle 12 through the thermal insulation valve 26, and the other end is connected to the gas cylinder 21 through the second valve 25. The feed pipe 23 is placed horizontally, and the storage hopper 22 is located above the feed pipe 23 and connected to the feed pipe 23; the aluminum particles stored in the storage hopper 22 enter the feed pipe 23 under the action of gravity;

[0027] The conveying system 3 includes a conveyor for conveying aluminum ingots 7, and the conveyor includes an output end, which is located above the opening, and the conveyor runs at a uniform speed; when the first aluminum ingot 7 falls from the opening through the conveyor, the first valve 24, the second valve 25 and the insulation valve 26 are opened, and the opening of the first valve 24 allows the airflow generated by the multiple flame nozzles 11 to concentrate the falling stroke of the aluminum ingot 7 near the axis of the furnace body 1; the opening of the second valve 25 allows the aluminum particles in the storage hopper 22 to be discharged from the feed pipe 23 and the feed nozzle 12 through the airflow to form a buffer pile 4 under the falling first aluminum ingot 7 for buffering, and then the second valve 25 and the insulation valve 26 are closed; when subsequent aluminum ingots 7 fall from the opening through the conveyor, the first valve 24 is kept open so that the falling aluminum ingot 7 hits other aluminum ingots 7 already in the furnace body 1 for buffering.

[0028] From the above description, it can be seen that by setting up a buffer system 2 in conjunction with the conveying system 3, and then combining it with the flame nozzle 11, the existing structure can be used as a gas nozzle when not burning, so that when the first valve 24 is opened, the falling aluminum ingot 7 can be blown to the vicinity of the axis of the furnace body 1 by the airflow under the action of the gas, and then combined with the feeding nozzle 12 toward the center of the bottom of the inner wall of the furnace body 1, the discharged aluminum particles can form a buffer pile 4 under the first falling aluminum ingot 7, which cushions the aluminum ingot 7 and avoids damaging the furnace body 1. In addition, the material of aluminum is relatively soft and can absorb impact well, and will not cause other impurities. Aluminum particles are only needed when the first aluminum ingot 7 falls, and the cost is low. Controllable; keeping the first valve 24 open when subsequent aluminum ingots 7 fall can make the falling route relatively fixed, and can hit other aluminum ingots 7 already in the furnace body 1 for cushioning. The impact can destroy the oxide layer on the surface of the aluminum ingot 7, improve the heat transfer effect and facilitate subsequent melting, killing two birds with one stone; when the aluminum ingot 7 freely falls and hits other aluminum ingots 7, it may rebound (the probability of rebound is not high, mainly because the aluminum ingot 7 is soft and absorbs most of the gravitational potential energy through deformation during collision, but it is not absolute), and the open first valve 24 continuously outputs airflow, which can continue to blow the rebounded aluminum ingot 7 toward the center, reducing the rebounded aluminum ingot 7 from hitting the inner wall of the furnace body 1 and causing damage.

[0029] Furthermore, the aluminum ingot 7 melting furnace also includes a smelting pool 6. The bottom of the inner wall of the furnace body 1 is inclined downward and connected to the smelting pool 6, and the side connected to the smelting pool 6 is the lower side.

[0030] Furthermore, the aluminum particles are one or more of rectangular parallelepiped particles or cubic particles;

[0031] When the aluminum particles are rectangular particles, the longest side of the aluminum particles does not exceed 8 mm, and the shortest side is not less than 3 mm;

[0032] When the aluminum particles are cubic particles, the side length of the aluminum particles ranges from 3 mm to 8 mm.

[0033] From the above description, it can be seen that by setting the side length or diameter, the size of the aluminum particles can be within a certain range. If they are too large, the airflow cannot blow them out, and they cannot be sent out. If they are too small, it is difficult to form a buffer pile 4 and they are easy to scatter. In addition, spherical and cylindrical aluminum particles are not used to avoid the bottom of the inclined furnace body 1 causing the spherical and cylindrical aluminum particles to roll and fail to form a buffer pile 4. The rectangular or cubic structure can easily stand on the inclined surface.

[0034] Furthermore, the feeding nozzle 12 is arranged toward the center of the bottom of the inner wall of the furnace body 1 and close to one side of the smelting pool 6.

[0035] As can be seen from the above description, the feeding nozzle 12 is arranged close to one side of the smelting pool 6, that is, above the lower side and toward the center of the bottom of the furnace body 1. In this way, when the gas delivers the aluminum particles, the aluminum particles will not be blown directly into the smelting pool 6, thereby ensuring the stacking effect of the buffer pile 4.

[0036] Furthermore, the aluminum ingot 7 melting furnace further includes a gas system, which includes a gas pipe 5 and a third valve 51 . The gas pipe 5 is connected to the flame nozzle 11 through the third valve 51 .

[0037] Furthermore, the aluminum ingot 7 is ignited in the melting furnace by a laser igniter.

[0038] As can be seen from the above description, by adopting the laser igniter, since the aluminum ingot 7 may rebound, it is avoided that the ceramic igniter is damaged after rebounding.

[0039] Furthermore, the first valve 24 is connected to the plurality of flame nozzles 11 via a gas mixing pipe 27 , and a heater 28 is provided in the gas mixing pipe 27 .

[0040] As can be seen from the above description, by arranging the heater 28 in the gas mixing pipe 27 , the furnace body 1 and the aluminum ingot 7 can be preheated in advance, thereby shortening the subsequent preheating time of the furnace body 1 and improving efficiency.

[0041] Furthermore, the furnace body 1 also includes a cover 13 and a circulation fan 14. The cover 13 is provided with a circulation port 15 and a feeding port 16 for conveying by a conveyor. The circulation port 15, the circulation fan 14, the mixing pipe 27 and the flame nozzle 11 are connected in sequence.

[0042] It can be seen from the above description that the circulating fan 14 can recycle the hot air and reduce heat loss.

[0043] Furthermore, the storage hopper 22 is provided with a sealing cover, and the sealing cover is transparent.

[0044] As can be seen from the above description, the transparent sealing cover can prevent the airflow from driving the aluminum particles back out of the storage hopper 22 when the second valve 25 is opened; and the purpose of transparency is to facilitate observation and timely replenishment of aluminum particles.

[0045] Furthermore, the buffer system 2 also includes an air compressor, which is connected to the gas cylinder 21. Example 1

[0046] An aluminum ingot 7 melting furnace includes a furnace body 1, a buffer system 2, and a conveying system 3;

[0047] The furnace body 1 includes an opening at the top, multiple rows of flame nozzles 11 evenly arranged on the inner wall of the furnace body 1, and a feed nozzle 12 arranged at the bottom of the inner wall of the furnace body 1; each row of the flame nozzles 11 includes multiple evenly distributed gas nozzles, and the gas outlet direction of the gas nozzles is toward the center of the furnace body 1; the feed nozzle 12 is toward the center of the bottom of the inner wall of the furnace body 1;

[0048] The buffer system 2 includes a gas cylinder 21, a storage hopper 22, a feed pipe 23, a first valve 24, a second valve 25, and a thermal insulation valve 26. The gas cylinder 21 is connected to the multiple flame nozzles 11 through the first valve 24; one end of the feed pipe 23 is connected to the feed nozzle 12 through the thermal insulation valve 26, and the other end is connected to the gas cylinder 21 through the second valve 25. The feed pipe 23 is placed horizontally, and the storage hopper 22 is located above the feed pipe 23 and connected to the feed pipe 23; the aluminum particles stored in the storage hopper 22 enter the feed pipe 23 under the action of gravity;

[0049] The conveying system 3 includes a conveyor for conveying aluminum ingots 7, and the conveyor includes an output end, which is located above the opening, and the conveyor runs at a uniform speed; when the first aluminum ingot 7 falls from the opening through the conveyor, the first valve 24, the second valve 25 and the insulation valve 26 are opened, and the opening of the first valve 24 allows the airflow generated by the multiple flame nozzles 11 to concentrate the falling stroke of the aluminum ingot 7 near the axis of the furnace body 1; the opening of the second valve 25 allows the aluminum particles in the storage hopper 22 to be discharged from the feed pipe 23 and the feed nozzle 12 through the airflow to form a buffer pile 4 under the falling first aluminum ingot 7 for buffering, and then the second valve 25 and the insulation valve 26 are closed; when subsequent aluminum ingots 7 fall from the opening through the conveyor, the first valve 24 is kept open so that the falling aluminum ingot 7 hits other aluminum ingots 7 already in the furnace body 1 for buffering.

[0050] The aluminum ingot 7 melting furnace further includes a smelting pool 6 , and the bottom of the inner wall of the furnace body 1 is tilted downward and connected to the smelting pool 6 , with the side connected to the smelting pool 6 being the lower side.

[0051] The aluminum particles are one or more of rectangular parallelepiped particles or cubic particles;

[0052] When the aluminum particles are rectangular particles, the longest side of the aluminum particles does not exceed 8 mm, and the shortest side is not less than 3 mm;

[0053] When the aluminum particles are cubic particles, the side length of the aluminum particles ranges from 3 mm to 8 mm.

[0054] The feeding nozzle 12 is arranged toward the center of the bottom of the inner wall of the furnace body 1 and close to one side of the smelting pool 6.

[0055] The aluminum ingot 7 melting furnace further includes a gas system, which includes a gas pipe 5 and a third valve 51 . The gas pipe 5 is connected to the flame nozzle 11 through the third valve 51 .

[0056] The aluminum ingot 7 is ignited in the melting furnace by a laser igniter.

[0057] The first valve 24 is connected to the plurality of flame nozzles 11 via a gas mixing pipe 27 , and a heater 28 is provided in the gas mixing pipe 27 .

[0058] The furnace body 1 further includes a cover 13 and a circulation fan 14. The cover 13 is provided with a circulation port 15 and a feeding port 16 for conveying by a conveyor. The circulation port 15, the circulation fan 14, the gas mixing pipe 27 and the flame nozzle 11 are connected in sequence.

[0059] The storage hopper 22 is provided with a sealing cover, which is transparent.

[0060] The buffer system 2 further includes an air compressor, which is connected to the gas cylinder 21 . Example 2

[0061] An aluminum ingot 7 melting furnace includes a furnace body 1, a buffer system 2, and a conveying system 3;

[0062] The furnace body 1 includes an opening at the top, multiple rows of flame nozzles 11 evenly arranged on the inner wall of the furnace body 1, and a feed nozzle 12 arranged at the bottom of the inner wall of the furnace body 1; each row of the flame nozzles 11 includes multiple evenly distributed gas nozzles, and the gas outlet direction of the gas nozzles is toward the center of the furnace body 1; the feed nozzle 12 is toward the center of the bottom of the inner wall of the furnace body 1;

[0063] The buffer system 2 includes a gas cylinder 21, a storage hopper 22, a feed pipe 23, a first valve 24, a second valve 25, and a thermal insulation valve 26. The gas cylinder 21 is connected to the multiple flame nozzles 11 through the first valve 24; one end of the feed pipe 23 is connected to the feed nozzle 12 through the thermal insulation valve 26, and the other end is connected to the gas cylinder 21 through the second valve 25. The feed pipe 23 is placed horizontally, and the storage hopper 22 is located above the feed pipe 23 and connected to the feed pipe 23; the aluminum particles stored in the storage hopper 22 enter the feed pipe 23 under the action of gravity;

[0064] The conveying system 3 includes a conveyor for conveying aluminum ingots 7, and the conveyor includes an output end, which is located above the opening, and the conveyor runs at a uniform speed; when the first aluminum ingot 7 falls from the opening through the conveyor, the first valve 24, the second valve 25 and the insulation valve 26 are opened, and the opening of the first valve 24 allows the airflow generated by the multiple flame nozzles 11 to concentrate the falling stroke of the aluminum ingot 7 near the axis of the furnace body 1; the opening of the second valve 25 allows the aluminum particles in the storage hopper 22 to be discharged from the feed pipe 23 and the feed nozzle 12 through the airflow to form a buffer pile 4 under the falling first aluminum ingot 7 for buffering, and then the second valve 25 and the insulation valve 26 are closed; when subsequent aluminum ingots 7 fall from the opening through the conveyor, the first valve 24 is kept open so that the falling aluminum ingot 7 hits other aluminum ingots 7 already in the furnace body 1 for buffering.

[0065] The aluminum ingot 7 melting furnace further includes a smelting pool 6. The bottom of the inner wall of the furnace body 1 is tilted downward and connected to the smelting pool 6, and the side connected to the smelting pool 6 is the lower side.

[0066] The aluminum particles are one or more of rectangular parallelepiped particles or cubic particles;

[0067] When the aluminum particles are rectangular particles, the longest side of the aluminum particles does not exceed 8 mm, and the shortest side is not less than 3 mm;

[0068] When the aluminum particles are cubic particles, the side length of the aluminum particles ranges from 3 mm to 8 mm.

[0069] The feeding nozzle 12 is arranged toward the center of the bottom of the inner wall of the furnace body 1 and close to one side of the smelting pool 6.

[0070] The aluminum ingot 7 melting furnace further includes a gas system, which includes a gas pipe 5 and a third valve 51 . The gas pipe 5 is connected to the flame nozzle 11 through the third valve 51 .

[0071] The aluminum ingot 7 is ignited in the melting furnace by a laser igniter.

[0072] The storage hopper 22 is provided with a sealing cover, which is transparent.

[0073] The buffer system 2 further includes an air compressor, which is connected to the gas cylinder 21 .

[0074] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's description and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An aluminum ingot melting furnace, characterized in that: Including furnace body, buffer system and conveying system; The furnace body includes an opening at the top, multiple rows of flame nozzles evenly arranged on the inner wall of the furnace body, and a feed nozzle arranged at the bottom of the inner wall of the furnace body; each row of the flame nozzles includes multiple evenly distributed gas nozzles, and the gas outlet direction of the gas nozzles is toward the center of the furnace body; the feed nozzle is toward the center of the bottom of the inner wall of the furnace body; The buffer system includes a gas cylinder, a storage hopper, a feed pipe, a first valve, a second valve, and a heat-insulating valve. The gas cylinder is connected to a plurality of flame nozzles via the first valve. One end of the feed pipe is connected to the feed nozzle via the heat-insulating valve, and the other end is connected to the gas cylinder via the second valve. The feed pipe is placed horizontally, and the storage hopper is located above the feed pipe and connected to the feed pipe. Aluminum particles stored in the storage hopper enter the feed pipe under the action of gravity. The conveying system includes a conveyor for conveying aluminum ingots, the conveyor includes an output end, the output end is located above the opening, and the conveyor runs at a constant speed; when the first aluminum ingot falls from the opening through the conveyor, the first valve, the second valve and the insulation valve are opened, and the opening of the first valve causes the airflow generated by the multiple flame nozzles to concentrate the falling path of the aluminum ingot near the axis of the furnace body; the opening of the second valve causes the aluminum particles in the storage hopper to be discharged from the feeding pipe and the feeding nozzle through the airflow to form a buffer pile under the falling first aluminum ingot for buffering, and then the second valve and the insulation valve are closed; when subsequent aluminum ingots fall from the opening through the conveyor, the first valve is kept open so that the falling aluminum ingot hits other aluminum ingots already in the furnace body for buffering; The aluminum ingot melting furnace also includes a smelting pool, the bottom of the inner wall of the furnace body is inclined downward and connected to the smelting pool, and the side connected to the smelting pool is the lower side; The aluminum particles are one or more of rectangular parallelepiped particles or cubic particles; When the aluminum particles are rectangular particles, the longest side of the aluminum particles does not exceed 8 mm, and the shortest side is not less than 3 mm; When the aluminum particles are cubic particles, the side length of the aluminum particles ranges from 3 mm to 8 mm.

2. The aluminum ingot melting furnace according to claim 1, characterized in that The feeding nozzle is arranged toward the center of the bottom of the inner wall of the furnace body and close to one side of the smelting pool.

3. The aluminum ingot melting furnace according to claim 1, characterized in that The aluminum ingot melting furnace further includes a gas system, which includes a gas pipe and a third valve. The gas pipe is connected to the flame nozzle through the third valve.

4. The aluminum ingot melting furnace according to claim 3, characterized in that The aluminum ingot melting furnace is ignited by a laser igniter.

5. The aluminum ingot melting furnace according to claim 1, characterized in that The first valve is connected to a plurality of flame nozzles through a gas mixing pipe, and a heater is provided in the gas mixing pipe.

6. The aluminum ingot melting furnace according to claim 5, characterized in that: The furnace body also includes a cover body and a circulation fan. The cover body is provided with a circulation port and a feeding port for conveying by a conveyor. The circulation port, the circulation fan, the gas mixing pipe and the flame nozzle are connected in sequence.

7. The aluminum ingot melting furnace according to claim 1, characterized in that The storage hopper is provided with a sealing cover, and the sealing cover is transparent.

8. The aluminum ingot melting furnace according to claim 1, characterized in that The buffer system further comprises an air compressor, which is communicated with the gas cylinder.

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