CN116336802A - Waste aluminum product recovery device - Google Patents

Abstract

The invention discloses a recycling device for waste aluminum products, which comprises a melting furnace and an electromagnetic stirrer arranged below the melting furnace. The main body of the frustum-shaped auger, a hollow cylinder is installed under the frustum-shaped shell, and the part of the frustum-shaped shell located inside the melting furnace is provided with dense exhaust holes, and a buffer gas chamber is inserted above the melting furnace. The buffer air chamber is located outside the frustum-shaped shell, and at least three heat recovery pipes are evenly installed between the upper part of the buffer air chamber and the feeding hopper. The invention sets a hollow cylinder so that the waste aluminum can reach evenly in the height direction Inside the molten aluminum, vent holes are set on the lower side wall of the frustum-shaped shell to prevent the gas from reaching the inside of the molten aluminum and causing bubbles to exist inside the molten aluminum.

Description

A recycling device for waste aluminum products

technical field

The invention relates to the technical field of waste aluminum recycling, in particular to a recycling device for waste aluminum products.

Background technique

As the most widely used metal among non-ferrous metals, aluminum has the advantages of light weight, strong durability and recyclability, and the aluminum industry is a high-energy-consuming industry, so the recycling and reuse of waste aluminum is particularly important.

Existing recycling of aluminum shavings generally uses permanent magnetic stirrers, electromagnetic stirrers, electromagnetic pumps, mechanical pumps or other devices to create a vortex in the molten aluminum at the aluminum shavings feeding port of the aluminum melting furnace, and put the aluminum shavings into the vortex of the molten aluminum. taken away by melting. However, since the aluminum chips will float on the surface of the molten aluminum when they are put into the molten aluminum, they will burn rapidly when they come into contact with the high-temperature molten aluminum, and the burning loss of the aluminum chips will increase, reducing the actual yield.

For this reason, the publication number is that the patent of CN101235443A proposes a waste aluminum recovery system, and its invention is owing to be provided with feeding pipe at the feeding place of smelting furnace, and its lower end is inserted in the aluminum liquid, and the upper end of feeding pipe is provided with feeding port, and is provided with in the feeding pipe There is a mechanically driven longitudinal feeding part. When the aluminum chips are put in from the feeding port, the vertical feeding part will press the input aluminum chips down through the feeding pipe, extrude from the bottom of the feeding pipe, and be taken away by the flowing aluminum liquid. The aluminum scraps are melted without contact with the air, so the present invention hardly burns when the aluminum scraps are melted, which increases the actual yield of smelting; and because the aluminum scraps are directly pressed into the aluminum liquid layer, there is no need to form a vortex to make the aluminum The liquid tumbling avoids the vortex generating mechanical device, so the structure of the present invention is relatively simple, and the device is easy to install and maintain. Since the aluminum liquid does not form a vortex to cause the aluminum liquid to tumbling, the oxide film on the surface of the aluminum liquid is not damaged, so there is no new The formation of alumina greatly reduces the oxidation loss of molten aluminum.

However, there are still defects in the above-mentioned equipment: 1. The lower end of the feed pipe is directly inserted into the vortex center of the aluminum liquid, and the scrap aluminum pressed from above enters the interior of the aluminum liquid from the lower end of the feed pipe, resulting in a single discharge position. There are a lot of waste aluminum at the moment, and the waste aluminum cannot evenly reach the interior of the molten aluminum in the vertical height, which reduces the melting efficiency; 2. When the conveying pipe is conveying the waste aluminum downward, the outside air is also conveyed downward, As a result, the gas enters the interior of the aluminum liquid, causing bubbles to be generated inside the aluminum liquid, which affects the effect of the later aluminum forming parts.

Contents of the invention

The object of the present invention is to provide a recycling device for waste aluminum products to solve the problems of uneven melting and bubbles in molten aluminum raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical proposal: a waste aluminum product recycling device, comprising a melting furnace and an electromagnetic stirrer arranged below the melting furnace, a frustum-shaped shell is inserted into the middle of the melting furnace from above, the The inside of the frustum-shaped casing is provided with a main body of a conical auger, and a hollow cylinder is installed below the frustum-shaped casing.

The part of the truncated conical shell located inside the melting furnace is provided with intensive exhaust holes, and a buffer gas chamber is inserted above the melting furnace, and the buffer gas chamber is located outside the truncated conical shell, and the upper part of the buffer gas chamber is connected to the At least three heat recovery pipes are evenly installed between the feed hoppers.

Further, an integral conical bucket is provided below the feed hopper, the lower end of the conical bucket is fixedly communicated with the upper end of the frustum-shaped shell, and baffles are provided in the inside of the feed hopper in a staggered manner, and Dense through-holes are opened on the baffle plate, and an upturned part is installed at one end of the heat recovery pipe inserted into the hopper.

Further, the side of the baffle plate close to the inner wall of the feed hopper is provided with an installation groove, the inside of the installation groove is fixed with a pin shaft, and the position corresponding to the installation groove on the inner wall of the feed hopper is fixed There is a mounting seat, and a torsion spring is arranged between the pin shaft and the mounting seat.

Further, the hollow cylinder includes circular rings arranged up and down, and there is a gap between two adjacent circular rings, at least two connecting columns are fixed between the two adjacent circular rings, and the circular rings A downwardly inclined guide plate is installed on the outer surface of the guide plate, the upper surface of the guide plate is set as an upper opening, and the lower surface of the guide plate is set as a lower opening.

Further, an auger driving structure capable of driving the main body of the conical auger to rotate is provided above the buffer air chamber, the auger driving structure includes a first motor installed on the upper surface of the buffer air chamber, The output end and the pulley at the upper end of the main body of the tapered auger and the belt for driving the two pulleys.

Further, a fixed ring is fixed on the outside of the circumference of the frustum-shaped shell above the interior of the buffer air chamber, a rotating ring is installed on the outside of the fixed ring through bearings, and a guide fan is fixed above the outer surface of the rotating ring , The inner side of the buffer air chamber is provided with a guide fan driving structure capable of driving the rotating ring to rotate.

Further, the driving structure of the guide fan includes a second motor installed on one side of the buffer air chamber, a driving gear fixed at the power output end of the second motor, and a driven gear fixed below the rotating ring, and the driving gear and The driven gear meshes.

Further, a base is also included, and the electromagnetic stirrer is installed above the base.

Further, a discharge pipe is provided under one side of the melting furnace, and a stop valve is provided on the discharge pipe.

Further, a liner is provided inside the melting furnace, and a combustion chamber is set between the liner and the melting furnace.

Compared with prior art, the beneficial effect of the present invention is:

1. In the present invention, the original integrated feeding cylinder is divided into a frustum-shaped shell and a hollowed-out cylinder, and then the waste aluminum runs downwards to reach the inside of the hollowed-out cylinder, which continues to move downward inside the hollowed-out cylinder, and continues to During the downward movement, part of the scrap aluminum is taken away by the eddy current, and the other part of the scrap aluminum continues to move downward until it reaches the bottom of the bottom ring, so that the scrap aluminum can reach the aluminum alloy evenly in the height direction. inside the liquid to ensure the uniformity of its melting;

2. The present invention is provided with a deflector, and then the waste aluminum taken away by the eddy current can move along the deflector, further ensuring that the waste aluminum can evenly reach the interior of the aluminum liquid in the height direction;

3. In the present invention, a vent hole is provided on the lower side wall of the frustum-shaped shell, and a buffer gas chamber is inserted above the melting furnace, so that the gas pressed down by the main body of the conical auger can reach the buffer gas through the vent hole. The interior of the chamber, to prevent the gas from reaching the interior of the aluminum liquid and causing bubbles to exist inside the aluminum liquid;

4. In the present invention, a heat recovery pipe is set between the buffer gas chamber and the feed hopper. Because the temperature inside the buffer gas chamber is relatively high, these gases are in a heated state, making them a hot air flow, which can pass through the heat The recovery pipe reaches the inside of the feed hopper to preheat the initial scrap aluminum, which can promote the melting operation of the scrap aluminum after entering the inner tank;

5. The present invention is equipped with a guide fan, which can quickly transport the gas discharged from the exhaust hole to the inside of the heat recovery pipe to avoid accumulation of hot gas;

6. The present invention installs a shakeable baffle inside the feed hopper, thereby prolonging the preheating time of waste aluminum.

Description of drawings

Fig. 1 is the whole figure of a kind of waste aluminum products recovery device of the present invention;

Fig. 2 is a schematic diagram of the internal structure of a recycling device for waste aluminum products of the present invention;

Fig. 3 is an internal schematic diagram of a buffer air chamber in a waste aluminum product recycling device of the present invention;

Fig. 4 is a structural schematic diagram of a frustum-shaped shell in a waste aluminum product recycling device of the present invention;

Fig. 5 is a sectional view of a frustum-shaped shell in Fig. 4 of a recycling device for waste aluminum products of the present invention;

Fig. 6 is a structural schematic diagram of an uninstalled ring in Fig. 5 of a waste aluminum product recovery device of the present invention;

Fig. 7 is a first perspective view of a guide plate in a waste aluminum product recovery device of the present invention;

Fig. 8 is a second perspective view of the deflector in a waste aluminum product recovery device of the present invention;

Fig. 9 is a schematic diagram of installation of a baffle in a waste aluminum product recycling device of the present invention;

Fig. 10 is a schematic structural view of a baffle in a waste aluminum product recycling device of the present invention;

Fig. 11 is a structural schematic diagram of an upturned part and a heat recovery pipe in a waste aluminum product recovery device of the present invention.

In the figure: 1. base; 2. electromagnetic stirrer; 3. melting furnace; 4. discharge pipe; 5. buffer air chamber; 6. feed hopper; 61. conical bucket; 7. heat recovery pipe; 71. Upturned part; 8. Guide plate; 81. Upper opening; 82. Lower opening; 9. Conical shell; 10. Conical auger main body; 11. Auger driving structure; 111. First motor; 112. Pulley ; 113, belt; 12, guide fan drive structure; 121, second motor; 122, driving gear; 123, driven gear; 13, exhaust hole; 14, guide fan; 15, rotating ring; 16, fixed Ring; 17, circular ring; 18, connecting column; 19, bearing pin; 20, baffle; 201, installation groove; 202, through hole; 21, mounting seat; 22, torsion spring; 23, liner; 24 , Combustion chamber.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described implementation regulations are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Fig. 1 and Fig. 2, the present invention provides a technical scheme of a waste aluminum product recovery device: a waste aluminum product recovery device, including a melting furnace 3, an inner tank 23 is provided inside the melting furnace 3, the inner tank 23 and the melting furnace 3 are provided with a combustion chamber 24, and the inside of the combustion chamber 24 can be passed into a combustion gas, such as natural gas, which needs to offer holes on the melting furnace 3, and a natural gas delivery pipeline is installed at the hole position, so that the natural gas transported into the interior of the combustion chamber 24, but also need to be equipped with an ignition structure inside the combustion chamber 24, so that the natural gas is ignited (the ignition technology of natural gas is very mature, so I will not go into details here. It should be noted that the melting furnace open air circulation holes), the heat generated after the natural gas combustion can reach the scrap aluminum through the inner tank 23, so that the scrap aluminum is melted at a high temperature, and a discharge pipe 4 is provided under one side of the melting furnace 3, and a discharge pipe 4 is provided on the discharge pipe 4 There is a cut-off valve, and then the discharge pipe 4 is closed by the cut-off effect of the cut-off valve. When discharging is required, it can be realized by opening the cut-off valve.

As shown in Figures 1 and 2, a base 1 is provided below the melting furnace 3, and an electromagnetic stirrer 2 is arranged between the base 1 and the melting furnace 3. When the electromagnetic stirrer 2 works, the inside of the liner 23 can be The molten aluminum produces a vortex, and when the aluminum chips reach the vortex center of the molten aluminum vortex, they can be taken away by the aluminum solution.

As shown in Fig. 2 and Fig. 6, in order to enable the scrap aluminum to accurately reach the vortex center of the molten aluminum vortex, and to prevent the scrap aluminum from floating on the upper surface of the molten aluminum, a frustum-shaped shell is inserted from the upper middle of the melting furnace 3 9. The conical auger main body 10 is provided inside the frustum-shaped shell 9, and then during the rotation of the conical auger main body 10, the waste aluminum can be gradually conveyed downward, and because the conical auger main body 10 and the circular auger The diameter of the table-shaped casing 9 is gradually reduced, so the waste aluminum can be slightly compressed in the process of downward movement, so as to increase the density (weight increase) of the waste after compression, so that the aluminum liquid can be transported more quickly. Take the scrap away.

As shown in Figure 4, in order to realize the rotation of the tapered auger main body 10, an auger driving structure 11 capable of driving the tapered auger main body 10 to rotate is provided above the buffer air chamber 5. Further, in this embodiment, the auger The driving structure 11 includes a first motor 111 installed on the upper surface of the buffer air chamber 5, a pulley 112 fixed on the power output end of the first motor 111 and the upper end of the tapered auger main body 10, and a belt 113 for driving two pulleys 112, That is, the pulley 112 on the first motor 111 is rotated by the power driving effect of the first motor 111, and the main body 10 of the tapered auger is rotated by the action of the pulley 112 and the belt 113 on the upper end of the main body of the auger 10 to make it It can push down the waste aluminum.

As shown in Figure 4, Figure 5 and Figure 6, in order to further avoid the brisk burning caused by the waste aluminum floating on the aluminum liquid, and to make the waste aluminum evenly reach the center of the vertical vortex in the vertical direction, the conical The lower end of the auger main body 10 extends downwards, and below the truncated cone-shaped housing 9, a circular ring 17 arranged side by side is installed. At least two connecting columns 18 are fixed between adjacent two circular rings 17, and then the connecting column The effect of 18 makes the two adjacent rings 17 up and down merge into one, and a gap is provided between the two adjacent rings 17 (the rings 17, connecting columns 18 and gaps arranged side by side, the three form a A hollow cylinder), and then when the waste aluminum runs downwards and discharges from the lower end of the cone-shaped shell 9, it will reach the inside of the hollow cylinder and continue to move downward, so that it continues to move downward at the center of the vortex, and when it continues During the downward movement, part of the scrap aluminum is taken away by the eddy current (at this time, the scrap aluminum can pass through the gap and enter the interior of the molten aluminum for melting), and the other part of the scrap aluminum continues to move downward until it reaches the The bottom of a circular ring 17 is discharged, so far the whole process of scrap aluminum being involved in the aluminum liquid is completed.

Referring to Fig. 3, Fig. 7 and Fig. 8, further, in order to ensure that each eddy current takes away the scrap aluminum from the gap between the two rings 17, and this part of scrap aluminum can be taken away at the initial height Melting (this is to ensure that each height of the molten aluminum can melt the waste aluminum and make the melting uniform), a downwardly inclined deflector 8 is installed on the outer surface of the ring 17, and the waste that is taken away by the eddy current Aluminum can move along the guide plate 8 to ensure uniform melting. The upper surface of the guide plate 8 is set as an upper opening 81 , and the lower surface of the guide plate 8 is set as a lower opening 82 .

As shown in Fig. 1, Fig. 2 and Fig. 3, in actual operation, since the main body of the conical auger 10 will press the outside air into the interior of the waste aluminum during the process of conveying the waste aluminum downward, resulting in the aluminum There are a lot of bubbles inside the liquid, which affects the forming of the aluminum liquid in the later stage. Therefore, dense exhaust holes 13 are provided in the part of the conical shell 9 inside the melting furnace 3, and then the conical auger main body 10 compresses and transports the scrap aluminum downward. During the process, a large amount of gas that is transported downward can be discharged outwards through the exhaust hole 13. In order to discharge the gas discharged from the exhaust hole 13 from the melting furnace 3, a buffer gas chamber 5 is inserted above the melting furnace 3. The buffer gas chamber 5 is positioned at the outside of the truncated conical shell 9, and the gas discharged from the exhaust hole 13 can reach the inside of the buffer gas chamber 5. Because the temperature inside the buffer gas chamber 5 is relatively high, these gases are in a state of being heated, so that It becomes a hot air flow. At this time, at least three heat recovery pipes 7 are evenly installed between the top of the buffer chamber 5 and the feed hopper 6, and then the hot air flow can reach the inside of the feed hopper 6, so that the feed hopper 6 The internal heat rises, and then when the waste aluminum is passed through the feed hopper 6 as material, it can be preheated by the hot air flow, thereby promoting the melting of the waste aluminum inside the liner 23 .

As shown in Figures 1 and 11, in this embodiment, the end of the heat recovery pipe 7 inserted into the feed hopper 6 should be provided with an upturned portion 71, which can transport the hot air upward to preheat more waste. Aluminum, on the other hand, can avoid the air bubble phenomenon caused by the downward flow of hot air into the interior of the aluminum liquid below.

As shown in Fig. 2, Fig. 9 and Fig. 10, an integrated conical bucket 61 is provided under the feed hopper 6, and the lower end of the conical bucket 61 is fixedly connected with the upper end of the frustum-shaped shell 9, so that aluminum scrap can reach the frustum-shaped shell 9. The inside of the shell 9, and in order to prolong the time of the waste aluminum in the feed hopper 6 to strengthen its preheating effect, the inside of the feed hopper 6 is provided with baffles 20 alternately, so that the scrap aluminum entering the feed hopper 6 The scrap aluminum can run along the baffle 20 to prolong the time of the scrap aluminum inside the feed hopper 6, and in order to allow the hot air flow of heat recovery to reach any position inside the feed hopper 6, the baffle 20 is provided with dense The through hole 202, and then the recovered hot air can pass through the through hole 202 and reach the scrap aluminum for preheating.

And in order to speed up the discharge of hot air flow, to ensure that the gas inside the truncated conical shell 9 can be quickly discharged, the outer circumference of the truncated conical shell 9 is located at the upper position of the buffer gas chamber 5. A fixed ring 16 is fixed on the outside of the fixed ring 16. The outside of the fixed ring 16 is installed by bearing rotation. There is a rotating ring 15, and a guide fan 14 is fixed above the outer surface of the rotating ring 15, and a guide fan drive structure 12 that can drive the rotating ring 15 to rotate is provided on one side of the buffer air chamber 5, and then the rotating ring 15 can be guided. The function of the flow fan driving structure 12 is to drive the flow guide fan 14 to rotate. When the flow guide fan 14 rotates, the hot air flow inside the buffer air chamber 5 can be quickly delivered to the inside of the heat recovery pipe 7 .

As shown in Fig. 3, preferably, in this embodiment, the guide fan driving structure 12 includes a second motor 121 installed on one side of the buffer air chamber 5, a driving gear 122 fixed on the power output end of the second motor 121, and a drive gear 122 fixed on the The driven gear 123 below the rotating ring 15, the driving gear 122 and the driven gear 123 are engaged, and then the driving gear 122 can drive the driven gear 123 to rotate by the action of the second motor 121, so that the rotating ring 15 can drive the guide fan 14 rotate.

Continuing to refer to Fig. 2, Fig. 9 and Fig. 10, in the above structure, scrap aluminum may be jammed on the baffle plate 20, in order to solve this problem, on the side of the baffle plate 20 close to the inner wall of the feed hopper 6 Be provided with installation groove 201, the inside of installation groove 201 is fixed with bearing pin 19, on the inwall of feed hopper 6 and the position corresponding to installation groove 201 is fixed with mounting seat 21, is provided between pin shaft 19 and mounting seat 21 There is a torsion spring 22, and the baffle plate 20 can be supported by the torsion spring 22 and the pin shaft 19 to become the state shown in Figure 9. When the waste aluminum is located on the baffle plate 20, the baffle plate 20 can be affected by the weight of the waste aluminum Pressed down (rotating at a certain angle along the pin shaft 19), and because the amount of scrap aluminum above the baffle 20 is in a state of constant change during feeding, the weight on the baffle 20 is in a state of constant change In this state, the baffle plate 20 can be continuously shaken, thereby avoiding the situation that waste aluminum gets stuck in the baffle plate 20 .

The working principle of the present invention: when using the device, the waste aluminum is fed from the inside of the feed hopper 6, and the waste aluminum can reach the inside of the conical shell 9 through the conical bucket 61, and under the action of the auger driving structure 11 The tapered auger main body 10 can push down the scrap aluminum, and because the diameters of the tapered auger main body 10 and the truncated conical casing 9 are gradually reduced, the scrap aluminum can also be slightly compressed during the downward movement, so as to Increase the density of waste blocks after compression (increase in weight, so that the aluminum liquid can take away the waste blocks more quickly), and the waste aluminum runs downward from the lower end of the frustum-shaped shell 9, and will reach the upper and lower circles The inside of the hollow cylinder formed by the ring 17, the connecting column 18 and the gap continues to move downward along the inside of the hollow cylinder, making it move vertically and continuously downward at the center of the vortex, and during its downward movement, A part of the scrap aluminum is taken away by the eddy current (at this time, the scrap aluminum can pass through the gap and enter the interior of the molten aluminum for melting), and the scrap aluminum can diffuse outward along the deflector 8, thereby ensuring that this part of scrap aluminum can be The initial height taken away is melted (this is to ensure that each height of the aluminum liquid can melt the scrap aluminum and make the melting uniform), and the melting is uniform, while the other part of the scrap aluminum continues to move downward until it reaches the bottom. Discharge from the bottom of a ring 17, so far the whole process of scrap aluminum being involved in the aluminum liquid is completed, and the discharge pipe 4 can be discharged from the discharge pipe 4 by opening the shut-off valve after the scrap aluminum melting is completed.

In the process of the waste aluminum being conveyed downward by the conical auger main body 10, the conical auger main body 10 will press down the external air together, and these gases can be compressed in the conical auger main body 10 during the process of conveying the waste aluminum The air is discharged outward through the exhaust hole 13 to the inside of the buffer air chamber 5, and the flow guide fan 14 is driven to rotate by the function of the flow guide fan driving structure 12. When the flow guide fan 14 rotates, the air in the buffer air chamber 5 can be quickly The hot air flow is delivered to the inside of the heat recovery pipe 7, and the heat inside the heat recovery pipe 7 can reach the inside of the feed hopper 6 to preheat the scrap aluminum (the end of the heat recovery pipe 7 inserted into the feed hopper 6 should be installed Warped part 71, on the one hand, it can transport the hot air upward to preheat more scrap aluminum, on the other hand, it can avoid the bubble phenomenon caused by the hot air flowing downward into the interior of the aluminum liquid below), and continuously feed the scrap aluminum When the waste aluminum is deflected by the baffle plate 20, the preheating time of the waste aluminum is extended, and under the effect of the weight of the waste aluminum, the baffle plate 20 can be pressed down (rotating a certain angle along the pin shaft 19), and because the feeding The weight of the scrap aluminum above the baffle 20 is in a constantly changing state, so the weight on the baffle 20 is in a state of constant change. This state can realize the continuous shaking of the baffle 20, thereby avoiding waste. Aluminum is stuck in the baffle plate 20 situation.

Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features. Within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a scrap aluminum product recovery unit, includes melting furnace (3) and sets up electromagnetic stirrer (2) in melting furnace (3) below, its characterized in that: the middle part of the melting furnace (3) is inserted with a round table-shaped shell (9) from the upper part, a conical auger main body (10) is arranged in the round table-shaped shell (9), and a hollow cylinder is arranged below the round table-shaped shell (9);

the part of the round table-shaped shell (9) positioned in the melting furnace (3) is provided with dense exhaust holes (13), a buffer air chamber (5) is inserted above the melting furnace (3), the buffer air chamber (5) is positioned outside the round table-shaped shell (9), and at least three heat recovery pipes (7) are uniformly arranged between the upper part of the buffer air chamber (5) and the feed hopper (6).

2. The scrap aluminum product recycling apparatus according to claim 1, wherein: the lower part of feeder hopper (6) is equipped with integrative toper fill (61), the lower extreme of toper fill (61) is fixed to be linked together with the upper end of round platform shape shell (9), the inside of feeder hopper (6) is crisscross to be equipped with baffle (20), and has seted up intensive through-hole (202) on baffle (20), upwarp portion (71) are installed to the inside one end of heat recovery pipe (7) insertion feeder hopper (6).

3. The scrap aluminum product recycling apparatus according to claim 2, wherein: one side of the baffle plate (20) close to the inner wall of the feed hopper (6) is provided with a mounting groove (201), a pin shaft (19) is fixed in the mounting groove (201), a mounting seat (21) is fixed on the inner wall of the feed hopper (6) at a position corresponding to the mounting groove (201), and a torsion spring (22) is arranged between the pin shaft (19) and the mounting seat (21).

4. The scrap aluminum product recycling apparatus according to claim 1, wherein: the hollow cylinder comprises rings (17) which are arranged side by side up and down, a gap is formed between every two adjacent rings (17), at least two connecting upright posts (18) are fixed between every two adjacent rings (17), a downward-inclined guide disc (8) is arranged on the outer side surface of each ring (17), an upper opening (81) is formed in the upper surface of each guide disc (8), and a lower opening (82) is formed in the lower surface of each guide disc (8).

5. The scrap aluminum product recycling apparatus according to claim 4, wherein: the screw conveyer driving structure (11) capable of driving the conical screw conveyer main body (10) to rotate is arranged above the buffer air chamber (5), and the screw conveyer driving structure (11) comprises a first motor (111) arranged on the upper surface of the buffer air chamber (5), a belt pulley (112) fixed at the power output end of the first motor (111) and the upper end of the conical screw conveyer main body (10) and a belt (113) used for driving the two belt pulleys (112).

6. The scrap aluminum product recycling apparatus according to claim 1, wherein: the circular truncated cone-shaped shell (9) is located at the periphery of the position above the inside of the buffer air chamber (5), a fixing ring (16) is fixed outside the circular truncated cone-shaped shell, a rotating ring (15) is rotatably installed outside the fixing ring (16) through a bearing, a guide fan (14) is fixed above the outer surface of the rotating ring (15), and a guide fan driving structure (12) capable of driving the rotating ring (15) to rotate is arranged on one side of the inside of the buffer air chamber (5).

7. The scrap aluminum product recycling apparatus in accordance with claim 6, wherein: the guide fan driving structure (12) comprises a second motor (121) arranged on one side inside the buffer air chamber (5), a driving gear (122) fixed at the power output end of the second motor (121) and a driven gear (123) fixed below the rotating ring (15), wherein the driving gear (122) is meshed with the driven gear (123).

8. The scrap aluminum product recycling apparatus according to claim 1, wherein: the electromagnetic stirrer is characterized by further comprising a base (1), and the electromagnetic stirrer (2) is arranged above the base (1).

9. The scrap aluminum product recycling apparatus according to claim 8, wherein: a discharging pipe (4) is arranged below one side of the melting furnace (3), and a stop valve is arranged on the discharging pipe (4).

10. The scrap aluminum product recycling apparatus according to any one of claims 1 to 8, wherein: an inner container (23) is arranged in the melting furnace (3), and a combustion chamber (24) is arranged between the inner container (23) and the melting furnace (3).

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