Automatic melting system for secondary aluminum of zip-top can and control method of automatic melting system

Abstract

The invention discloses an automatic melting system for secondary aluminum of ring-pull cans and a control method thereof.The automatic melting system comprises a vibration feeding mechanism, a vortex side well furnace mechanism used for receiving depainted waste ring-pull cans conveyed by the vibration feeding mechanism in a vibration mode and conducting melting treatment, and a vortex stirring mechanism arranged on the vortex side well furnace mechanism and used for stirring the depainted waste ring-pull cans; the circulating melting main furnace mechanism communicates with the vortex side well furnace mechanism and is used for circulating molten aluminum in the circulating melting main furnace mechanism and the vortex side well furnace mechanism, the vortex side well furnace mechanism, the vortex stirring mechanism and the circulating melting main furnace mechanism are arranged, and the depainted waste ring-pull cans are drawn into the bottom of the molten aluminum under the vortex effect; smokeless rapid melting is achieved, molten aluminum in the whole melting system is stirred, the alloying effect of the molten aluminum is improved, the metal uniformity and temperature uniformity of the molten aluminum are improved, generation of molten aluminum scum is reduced, the burn out rate of aluminum metal is low, and the melting effect and production efficiency of waste ring-pull can secondary aluminum are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of melting recycled aluminum from cans, and particularly relates to an automatic melting system for recycled aluminum from cans and a control method thereof. Background Art

[0002] Melting recycled aluminum from cans is a key processing step in the recycling of aluminum resources. By recycling and melting waste cans, efficient recycling of aluminum materials can be achieved while reducing energy consumption and environmental burden.

[0003] The existing melting process of recycled aluminum from cans mostly involves directly putting the waste cans into the melting furnace. The waste cans will float and melt on the surface of the aluminum liquid in the melting furnace, generating a large amount of waste gas and smoke. In addition, the melting burn rate of the waste cans is high, resulting in insufficient melting effect and production efficiency of the recycled aluminum from waste cans, which cannot meet the production requirements of the recycled aluminum melting from waste cans. For this reason, we propose an automated melting system for recycled aluminum from cans and its control method. Summary of the Invention

[0004] The purpose of the present invention is to provide an automated melting system for recycled aluminum from cans and a control method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an automated melting system for recycled aluminum from cans, comprising: A vibrating feeding mechanism, which is used to vibrate and convey the paint-removed waste cans; A vortex side well furnace mechanism, which is used to receive the paint-removed waste cans vibrated and conveyed by the vibrating feeding mechanism and perform melting treatment on them; A vortex stirring mechanism is provided on the vortex side well furnace mechanism, and is used to stir the molten aluminum liquid in the vortex side well furnace mechanism and form a vortex, thereby achieving vortex melting of the depainted waste cans and the molten aluminum liquid; a circulating melting main furnace mechanism, the circulating melting main furnace mechanism being in communication with the vortex side well furnace mechanism, and being used for circulating the molten aluminum liquid in the circulating melting main furnace mechanism and the vortex side well furnace mechanism; There are a plurality of regenerative combustion mechanisms, each of which is arranged on the circulating melting main furnace mechanism and is used to provide melting heat energy to the circulating melting main furnace mechanism; There are two waste gas and smoke treatment mechanisms, which are respectively arranged on the vortex side well furnace mechanism and the circulating melting main furnace mechanism, and are used to treat the waste gas and smoke generated by the melting of paint-removed waste cans.

[0006] Preferably, the vibration feeding mechanism includes a conveying bracket, a feeding frame plate and a vibration motor; The feeding frame is tiltedly arranged on the conveying bracket, and the vibration motor is arranged at the bottom of the feeding frame; And one end of the feeding frame plate facing the vortex side well furnace mechanism is a gradually shrinking cone mouth structure.

[0007] Preferably, the vortex side well furnace mechanism includes a side well furnace body, a power chamber and a vortex chamber; The side well furnace body is provided with the power chamber and the vortex chamber, the power chamber and the vortex chamber are connected, and the vortex chamber is provided with a vortex forming line; One end of the gradually shrinking cone-shaped structure on the feeding frame plate is tilted toward the vortex chamber.

[0008] Preferably, the vortex shaping line is arranged on the inner wall of the vortex chamber in a spiral manner.

[0009] Preferably, the vortex stirring mechanism includes a fixed bracket, a stirring motor, a chain transmission assembly, a transmission shaft, a mounting base and a vortex stirring head; The fixed bracket is installed on the side well furnace body at a position corresponding to the power chamber. A working installation position and a maintenance installation position are provided on the fixed bracket. The stirring motor is installed at the working installation position on the fixed bracket. The output end of the fixed bracket is connected to the transmission shaft through a chain transmission assembly. The chain transmission assembly and the transmission shaft are arranged on the fixed bracket through an outer protective plate. The bottom end of the transmission shaft is provided with the vortex stirring head through the mounting seat, and the vortex stirring head extends into the vortex chamber.

[0010] Preferably, the lower portion of the vortex stirring head is a cylindrical structure with a plurality of stirring ports opened on the circumference, and a through opening communicating with the stirring ports is opened at the bottom of the vortex stirring head.

[0011] Preferably, a lifting bracket is provided on the fixed bracket between the corresponding working installation position and the maintenance installation position, the lifting bracket is provided with a guide slide rod, a guide slider is slidably clamped on the guide slide rod, a winder is provided at the bottom of the guide slider, a hook is provided at the output end of the winder, and a lifting ear is provided at the upper end of the outer protective plate.

[0012] Preferably, the circulating melting main furnace mechanism includes a melting and heat-insulating furnace body and a furnace door; The melting and heat preservation furnace body is connected to the side well furnace body, the furnace door is connected to the melting and heat preservation furnace body through a hydraulic pressing and lifting mechanism, and a plurality of the regenerative combustion mechanisms are arranged on the melting and heat preservation furnace body; The side of the melting and heat-insulating furnace body facing the furnace door is an inclined structure.

[0013] Preferably, the exhaust gas and smoke treatment mechanism includes a smoke hood shell, an exhaust gas and smoke collection pipe and an exhaust gas and smoke processor; The smoke hood shell is arranged above the side well furnace body or above the corresponding furnace door on the melting and insulation furnace body, the exhaust gas and smoke collection pipe is connected to the smoke hood shell, and the exhaust gas and smoke collection pipe is externally connected to the exhaust gas and smoke processor.

[0014] A control method for an automated melting system for recycled aluminum from cans, comprising the following steps: A. Vibration feeding of paint-removed waste cans: The paint-removed waste cans are transported to the feeding frame, and the vibration motor is started to drive the feeding frame to vibrate. Since the feeding frame is tilted toward the vortex chamber, the paint-removed waste cans on the feeding frame are driven to vibrate and transported into the vortex chamber; B. Vortex melting of paint-removed waste cans: The stirring motor on the fixed bracket is started, and the transmission shaft is driven to rotate through the chain transmission assembly, which in turn drives the vortex stirring head to start rotating, so that the vortex stirring head starts to stir the molten aluminum liquid in the power chamber. A vortex forming line with a spiral structure is provided in the vortex chamber. When the vortex stirring mechanism stirs the molten aluminum liquid in the power chamber, the molten aluminum liquid in the power chamber is transported to the vortex chamber through the stirring of the vortex stirring mechanism. The spiral structure of the vortex forming line causes the molten aluminum liquid to form a vortex rotation, so that the paint-removed waste cans that fall into the vortex chamber are drawn into the bottom of the molten aluminum liquid under the action of the vortex, thereby achieving smokeless and rapid melting to form molten aluminum liquid, which then enters the melting and heat preservation furnace body for circulation; C. Combustion heating and insulation: The combustion is started by the heat storage combustion mechanism, which continuously supplies heat to the melting and heat preservation furnace body, so that the molten aluminum liquid in the melting and heat preservation furnace body circulates into the side well furnace body, ensuring the rapid melting treatment of the paint-removed waste cans and keeping the molten aluminum liquid in the melting and heat preservation furnace body warm; D. Waste gas and dust treatment: When the side shaft furnace body is melting, the waste gas and smoke generated enter the waste gas and smoke collection pipe through the smoke hood shell. The waste gas and smoke collection pipe effectively treats the waste gas and smoke through the waste gas and smoke processor to reduce the discharge of waste gas and smoke; When the furnace door is opened, the smoke hood shell above the furnace door will collect the exhaust gas and dust discharged from the melting and holding furnace body and transport it to the exhaust gas and dust collection pipe. The exhaust gas and dust collection pipe effectively treats the exhaust gas and dust through the exhaust gas and dust processor to reduce the exhaust gas and dust emission; E. Cleaning and preheating of melting and holding furnace: When the inside of the melting and holding furnace needs to be cleaned or inspected, the furnace door is lifted vertically and opened by the hydraulic pressing and lifting mechanism, and the cleaning staff uses a forklift and a slag rake to move the slag and clean it on the slope; Before the paint-removed waste cans are melted, the furnace door is opened and the paint-removed waste cans are sent to the slope inside the melting and insulation furnace for drying, and then put into the feeding frame for transportation and loading.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a vortex side well furnace mechanism, an eddy current stirring mechanism and a circulating melting main furnace mechanism. When in use, the paint-removed waste cans are transported to the open vortex chamber on the side well furnace body, and the stirring motor drives the transmission shaft to rotate through the chain transmission assembly, thereby driving the vortex stirring head to start stirring the molten aluminum liquid in the power chamber. A vortex forming line with a spiral structure is provided in the vortex chamber. When the vortex stirring mechanism stirs the molten aluminum liquid in the power chamber, the molten aluminum liquid in the power chamber is transported to the vortex chamber through the stirring of the vortex stirring mechanism, and then the molten aluminum liquid forms a vortex and rotates through the spiral structure of the vortex forming line, so that it falls into the vortex. The paint-stripped waste cans in the room are drawn into the bottom of the molten aluminum liquid under the action of the eddy current, achieving smokeless and rapid melting to form molten aluminum liquid, which then enters the melting and heat preservation furnace body for circulation, thereby stirring the molten aluminum liquid in the entire melting system, improving the alloying effect of the aluminum liquid, and increasing the metal uniformity and temperature uniformity of the molten aluminum liquid. There is no need to open the furnace door on the melting and heat preservation furnace body, which on the one hand reduces heat energy loss and accelerates the melting rate. On the other hand, the sinking eddy current melting process reduces the generation of aluminum liquid slag, and the aluminum metal burnout rate is low, thus ensuring the melting effect and production efficiency of the recycled aluminum from waste cans, and meeting the production requirements of the recycled aluminum melting from waste cans. 2. The vortex side well furnace mechanism of the present invention has a vortex forming line with a spiral structure provided in the vortex chamber. When the vortex stirring mechanism stirs the molten aluminum liquid in the power chamber, the molten aluminum liquid in the power chamber is transported to the vortex chamber through the stirring of the vortex stirring mechanism, and then the molten aluminum liquid is caused to form a vortex rotation through the spiral structure of the vortex forming line, which can accelerate the vortex speed of the vortex chamber, thereby accelerating the sinking vortex melting treatment of the paint-removed waste cans. The residence time of the paint-removed waste cans is short, and they can be melted quickly, reducing the generation of unnecessary oxidized scum, improving the melting effect of the paint-removed waste cans, reducing the generation of exhaust gas and smoke, and reducing the melting and burning rate of the waste cans. 3. The present invention is provided with a lifting bracket, a guide slide bar, a guide slider, a reel, a hook and a lifting lug on the fixed bracket. When the eddy current stirring mechanism is damaged or needs to be repaired, the hook is lowered by the reel so that the hook is hooked on the lifting lug, and then the reel drives the stirring motor to rise, and then the guide slider is moved. The guide slider moves under the guidance of the guide slide bar, driving the stirring motor to move to the maintenance installation position on the fixed bracket, which is convenient for repairing the eddy current stirring mechanism, does not require manual handling, and improves the repair and maintenance efficiency; 4. The present invention is provided with an exhaust gas and smoke treatment mechanism, which collects the generated exhaust gas and smoke through the smoke hood shell and transports it to the exhaust gas and smoke collection pipe. The exhaust gas and smoke collection pipe effectively treats the exhaust gas and smoke through the exhaust gas and smoke processor, thereby reducing the exhaust gas and smoke discharge and meeting environmental protection requirements; 5. The present invention is provided with a vibrating feeding mechanism, which adopts a vibrating inclined conveying method for the waste cans with depainted paint, thereby reducing the problem of accumulation and blockage of the waste cans with depainted paint, improving the conveying efficiency, and ensuring the normal production of recycled aluminum molten from cans. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 5 It is a schematic diagram of the overall top view and cross-sectional structure of the present invention; Figure 6 It is a schematic diagram of a top view and cross-section of the vortex side well furnace mechanism of the present invention; Figure 7 It is a schematic diagram of the overall side cross-sectional structure of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the connection between the vortex side well furnace mechanism and the eddy current stirring mechanism of the present invention; Figure 9 Schematic diagram of the three-dimensional structure of the vortex stirring mechanism of the present invention; Figure 10 Schematic diagram of the three-dimensional structure of the vortex stirring mechanism of the present invention; Figure 11 is a schematic diagram of the three-dimensional structure of the fixing bracket of the present invention; Figure 12 It is a partial three-dimensional structural schematic diagram of the vortex stirring mechanism of the present invention.

[0017] In the figure: 1. Vibration feeding mechanism; 101. Conveying bracket; 102. Conveying frame plate; 103. Vibration motor; 2. Vortex side well furnace mechanism; 201. Side well furnace body; 202. Power chamber; 203. Vortex chamber; 204. Vortex forming line; 3. Vortex stirring mechanism; 301. Fixed bracket; 302. Stirring motor; 303. Chain transmission assembly; 304. Transmission shaft; 305. Mounting seat; 306. Eddy current stirring head; 307, outer protective plate; 308, stirring port; 309, lifting bracket; 310, guide slide; 311, guide slide; 312, winder; 313, hook; 314, lifting lug; 4, circulating melting main furnace mechanism; 401, melting and heat preservation furnace body; 402, furnace door; 5, regenerative combustion mechanism; 6, exhaust gas and smoke treatment mechanism; 601, smoke hood shell; 602, exhaust gas and smoke collection pipe. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1-12 The automated melting system for recycled aluminum from cans provided by the present invention comprises: The vibrating feeding mechanism 1 is used for vibrating and conveying the paint-removed waste cans. The vibrating feeding mechanism 1 includes a conveying bracket 101, a feeding frame plate 102 and a vibration motor 103; the feeding frame plate 102 is tilted on the conveying bracket 101, and the vibration motor 103 is arranged at the bottom of the feeding frame plate 102; and the end of the feeding frame plate 102 facing the vortex side well furnace mechanism 2 is a gradually shrinking cone structure; The present invention is provided with a vibrating feeding mechanism 1, which adopts a vibrating inclined conveying method for the waste cans with depainted paint, thereby reducing the problem of accumulation and clogging of the waste cans with depainted paint, improving the conveying efficiency, and ensuring the normal production of recycled aluminum from cans; The vortex side well furnace mechanism 2 is used to receive the paint-removed waste cans vibrated and conveyed by the vibrating feeding mechanism 1 and perform melting treatment. The vortex side well furnace mechanism 2 includes a side well furnace body 201, a power chamber 202 and a vortex chamber 203; the side well furnace body 201 is provided with a power chamber 202 and a vortex chamber 203, the power chamber 202 and the vortex chamber 203 are connected, and a vortex forming line 204 is provided in the vortex chamber 203, and one end of the gradually shrinking cone structure on the feeding frame plate 102 is inclined toward the vortex chamber 203, and the vortex forming line 204 is spirally arranged on the inner wall of the vortex chamber 203; The vortex side well furnace mechanism 2 of the present invention is connected with the power chamber 202 and the vortex chamber 203. A vortex forming line 204 with a spiral structure is provided in the vortex chamber 203. When the vortex stirring mechanism 3 stirs the molten aluminum liquid in the power chamber 202, the molten aluminum liquid in the power chamber 202 is transported to the vortex chamber 203 through the stirring of the vortex stirring mechanism 3. Then, the spiral structure of the vortex forming line 204 causes the molten aluminum liquid to form a vortex rotation, which can accelerate the vortex speed of the vortex chamber 203, thereby accelerating the sinking vortex melting treatment of the depainted waste cans. The residence time of the depainted waste cans is short, and they can be melted quickly, reducing the generation of unnecessary oxidized scum, improving the melting effect of the depainted waste cans, reducing the generation of exhaust gas and smoke, and reducing the melting and burning rate of the waste cans. The vortex stirring mechanism 3 is arranged on the vortex side well furnace mechanism 2, and is used to stir the molten aluminum liquid in the vortex side well furnace mechanism 2 and form a vortex, so as to realize the vortex melting of the paint-removed waste cans and the molten aluminum liquid. The vortex stirring mechanism 3 includes a fixed bracket 301, a stirring motor 302, a chain transmission component 303, a transmission shaft 304, a mounting seat 305 and a vortex stirring head 306; the fixed bracket 301 is installed on the side well furnace body 201 at a position corresponding to the power chamber 202, and a working installation position and a maintenance installation position are provided on the fixed bracket 301, and the stirring motor 302 is installed on the side well furnace body 201. At the working installation position on the fixed bracket 301, the output end of the fixed bracket 301 is connected to the transmission shaft 304 through the chain transmission assembly 303. The chain transmission assembly 303 and the transmission shaft 304 are arranged on the fixed bracket 301 through the outer protective plate 307. The bottom end of the transmission shaft 304 is provided with a vortex stirring head 306 through the mounting seat 305. The vortex stirring head 306 extends into the vortex chamber 203. The lower part of the vortex stirring head 306 is a cylindrical structure with a plurality of stirring ports 308 opened on the circumference, and the bottom of the vortex stirring head 306 is provided with a through opening that is connected to the stirring port 308. The circulating melting main furnace mechanism 4 is connected to the vortex side well furnace mechanism 2 and is used for circulating the molten aluminum liquid in the circulating melting main furnace mechanism 4 and the vortex side well furnace mechanism 2. The circulating melting main furnace mechanism 4 includes a melting and heat preservation furnace body 401 and a furnace door 402; the melting and heat preservation furnace body 401 is connected to the side well furnace body 201, and the furnace door 402 is connected to the melting and heat preservation furnace body 401 through a hydraulic pressing and lifting mechanism. A plurality of regenerative combustion mechanisms 5 are provided on the melting and heat preservation furnace body 401; the side of the melting and heat preservation furnace body 401 facing the furnace door 402 is an inclined structure, which facilitates entry into the melting and heat preservation furnace body 401 for cleaning and maintenance; A plurality of regenerative combustion mechanisms 5 are provided, and the plurality of regenerative combustion mechanisms 5 are arranged on the circulating melting main furnace mechanism 4 to provide melting heat energy to the circulating melting main furnace mechanism 4; The exhaust gas and smoke treatment mechanism 6 is provided with two, and the two exhaust gas and smoke treatment mechanisms 6 are respectively arranged on the vortex side well furnace mechanism 2 and the circulating melting main furnace mechanism 4, and are used to treat the exhaust gas and smoke generated by the melting of paint-removed waste cans. The exhaust gas and smoke treatment mechanism 6 includes a smoke hood shell 601, an exhaust gas and smoke collection pipe 602 and an exhaust gas and smoke processor. The smoke hood shell 601 is arranged above the side well furnace body 201 or above the corresponding furnace door 402 on the melting and insulation furnace body 401. The exhaust gas and smoke collection pipe 602 is connected to the smoke hood shell 601, and the exhaust gas and smoke collection pipe 602 is externally connected to the exhaust gas and smoke processor; The present invention is provided with an exhaust gas and smoke treatment mechanism 6, which collects the generated exhaust gas and smoke through the smoke hood shell 601 and transports it to the exhaust gas and smoke collection pipe 602. The exhaust gas and smoke collection pipe 602 effectively treats the exhaust gas and smoke through the exhaust gas and smoke processor, reduces the exhaust gas and smoke discharge, and meets environmental protection requirements.

[0020] The present invention is provided with a vortex side well furnace mechanism 2, an eddy current stirring mechanism 3 and a circulating melting main furnace mechanism 4. When in use, the paint-removed waste cans are transported to the open vortex chamber 203 on the side well furnace body 201, and the stirring motor 302 drives the transmission shaft 304 to rotate through the chain transmission assembly 303, thereby driving the vortex stirring head 306 to start stirring the molten aluminum liquid in the power chamber 202. The power chamber 202 and the vortex chamber 203 are connected, and a vortex forming line 204 with a spiral structure is provided in the vortex chamber 203. When the vortex stirring mechanism 3 stirs the molten aluminum liquid in the power chamber 202, the molten aluminum liquid in the power chamber 202 is transported to the vortex chamber 203 through the stirring of the vortex stirring mechanism 3, and then is spun through the vortex forming line 20 The spiral structure of 4 causes the molten aluminum liquid to form a vortex rotation, so that the paint-removed waste cans that fall into the vortex chamber 203 are drawn into the bottom of the molten aluminum liquid under the action of the vortex, achieving smokeless rapid melting to form molten aluminum liquid, and enter the melting and heat preservation furnace body 401 for circulation, thereby stirring the molten aluminum liquid in the entire melting system, improving the alloying effect of the aluminum liquid, and improving the metal uniformity and temperature uniformity of the molten aluminum liquid. There is no need to open the furnace door 402 on the melting and heat preservation furnace body 401, on the one hand, reducing heat energy loss and accelerating the melting rate, and on the other hand, through the sinking vortex melting treatment, reducing the generation of aluminum liquid slag, low aluminum metal burnout rate, ensuring the melting effect and production efficiency of recycled aluminum from waste cans, and meeting the production requirements of recycled aluminum melting from waste cans.

[0021] In this embodiment, if Figures 8-12 As shown, a lifting bracket 309 is provided on the fixed bracket 301 between the corresponding working installation position and the maintenance installation position, and the lifting bracket 309 is provided with a guide slide 310. A guide slider 311 is slidably engaged with the guide slide 310. A reel 312 is provided at the bottom of the guide slider 311. A hook 313 is provided at the output end of the reel 312. A lifting ear 314 is provided at the upper end of the outer protective plate 307. The present invention is provided with a lifting bracket 309, a guide slide bar 310, a guide slider 311, a reel 312, a hook 313 and a lifting ear 314 on the fixed bracket 301. When the vortex stirring mechanism 3 is damaged or needs to be repaired, the hook 313 is lowered by the reel 312 so that the hook 313 hooks the lifting ear 314, and then the reel 312 drives the stirring motor 302 to rise, and then the guide slider 311 is moved. The guide slider 311 is guided by the guide slide bar 310 to move, driving the stirring motor 302 to move to the maintenance installation position on the fixed bracket 301, so that the vortex stirring mechanism 3 can be repaired and processed conveniently without manual handling, thereby improving the maintenance efficiency.

[0022] The control method of the automatic melting system of recycled aluminum from cans provided by the present invention comprises the following steps: A. Vibration feeding of paint-removed waste cans: The paint-removed waste cans are transported to the feeding frame 102, and the vibration motor 103 is started to drive the feeding frame 102 to vibrate. Since the feeding frame 102 is tilted toward the vortex chamber 203, the paint-removed waste cans on the feeding frame 102 are vibrated and transported into the vortex chamber 203; B. Vortex melting of paint-removed waste cans: The stirring motor 302 on the fixed bracket 301 is started, and the transmission shaft 304 is driven to rotate through the chain transmission assembly 303, thereby driving the vortex stirring head 306 to start rotating, so that the vortex stirring head 306 starts to stir the molten aluminum liquid in the power chamber 202, and a vortex forming line 204 with a spiral structure is provided in the vortex chamber 203. When the vortex stirring mechanism 3 stirs the molten aluminum liquid in the power chamber 202, the vortex stirring mechanism 3 stirs the molten aluminum liquid in the power chamber 202, and the vortex forming line 204 stirs the molten aluminum liquid in the power chamber 203, and then the spiral structure of the vortex forming line 204 causes the molten aluminum liquid to form a vortex rotation, so that the paint-removed waste cans that fall into the vortex chamber 203 are drawn into the bottom of the molten aluminum liquid under the action of the vortex, thereby achieving smokeless and rapid melting to form molten aluminum liquid, and then enter the melting and heat preservation furnace body 401 for circulation; C. Combustion heating and insulation: The regenerative combustion mechanism 5 is used to start combustion, continuously supplying heat to the melting and heat-insulating furnace body 401, so that the molten aluminum liquid in the melting and heat-insulating furnace body 401 circulates into the side well furnace body 201, ensuring the rapid melting of the paint-removed waste cans and keeping the molten aluminum liquid in the melting and heat-insulating furnace body 401 warm. D. Waste gas and dust treatment: When the side shaft furnace body 201 is melting, the waste gas and smoke generated enter the waste gas and smoke collection pipe 602 through the smoke hood shell 601. The waste gas and smoke collection pipe 602 effectively processes the waste gas and smoke through the waste gas and smoke processor to reduce the discharge of waste gas and smoke; When the furnace door 402 is opened, the smoke hood shell 601 above the furnace door 402 collects the exhaust gas and smoke discharged from the melting and holding furnace body 401 and transports it to the exhaust gas and smoke collection pipe 602. The exhaust gas and smoke collection pipe 602 effectively processes the exhaust gas and smoke through the exhaust gas and smoke processor to reduce the exhaust gas and smoke discharge; E. Cleaning and preheating of melting and holding furnace: When the interior of the melting and holding furnace body 401 needs to be cleaned or inspected, the furnace door 402 is lifted vertically and opened by the hydraulic pressing and lifting mechanism, and the cleaning staff uses a forklift and a slag rake to move the slag and clean it on the slope; Before the paint-removed waste cans are melted, the furnace door 402 is opened and the paint-removed waste cans are sent to the slope inside the melting and insulation furnace body 401 for drying, and then put into the feeding frame 102 for conveying and loading, which plays a role of preheating and drying, and prevents the aluminum waste from coming into contact with water vapor and causing reaction and explosion.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automated melting system for recycled aluminum from cans, characterized in that: include: A vibrating feeding mechanism (1), the vibrating feeding mechanism (1) is used for vibrating and conveying paint-removed waste cans; A vortex side well furnace mechanism (2), the vortex side well furnace mechanism (2) is used to receive the paint-removed waste cans vibrated and conveyed by the vibration feeding mechanism (1) and perform melting treatment; A vortex stirring mechanism (3), the vortex stirring mechanism (3) being arranged on the vortex side well furnace mechanism (2), and being used for stirring the molten aluminum liquid in the vortex side well furnace mechanism (2) and forming a vortex, thereby achieving vortex melting of the depainted waste cans and the molten aluminum liquid; A circulating melting main furnace mechanism (4), the circulating melting main furnace mechanism (4) being in communication with the vortex side well furnace mechanism (2), and being used for circulating molten aluminum liquid in the circulating melting main furnace mechanism (4) and the vortex side well furnace mechanism (2); A plurality of regenerative combustion mechanisms (5) are provided, wherein the plurality of regenerative combustion mechanisms (5) are arranged on the circulating melting main furnace mechanism (4) and are used to provide melting heat energy to the circulating melting main furnace mechanism (4); Two waste gas and smoke treatment mechanisms (6) are provided. The two waste gas and smoke treatment mechanisms (6) are respectively arranged on the vortex side well furnace mechanism (2) and the circulating melting main furnace mechanism (4), and are used to treat waste gas and smoke generated by melting of paint-removed waste cans.

2. The automated melting system for recycled aluminum from cans according to claim 1, characterized in that: The vibration feeding mechanism (1) comprises a conveying bracket (101), a feeding frame plate (102) and a vibration motor (103); The feeding frame plate (102) is tiltedly arranged on the conveying bracket (101), and the vibration motor (103) is arranged at the bottom of the feeding frame plate (102); Furthermore, one end of the feeding frame plate (102) facing the vortex side well furnace mechanism (2) is a gradually shrinking cone-mouth structure.

3. The automated melting system for recycled aluminum from cans according to claim 2, characterized in that: The vortex side well furnace mechanism (2) comprises a side well furnace body (201), a power chamber (202) and a vortex chamber (203); The power chamber (202) and the vortex chamber (203) are provided on the side well furnace body (201); the power chamber (202) and the vortex chamber (203) are connected, and a vortex forming line (204) is provided in the vortex chamber (203); One end of the gradually shrinking cone-shaped structure on the feeding frame plate (102) is tilted toward the vortex chamber (203).

4. The automated melting system for recycled aluminum from cans according to claim 3, characterized in that: The vortex shaping line (204) is arranged on the inner wall of the vortex chamber (203) in a spiral manner.

5. The automated melting system for recycled aluminum from cans according to claim 3, characterized in that: The vortex stirring mechanism (3) includes a fixed bracket (301), a stirring motor (302), a chain transmission assembly (303), a transmission shaft (304), a mounting base (305) and a vortex stirring head (306); The fixed bracket (301) is installed on the side well furnace body (201) at a position corresponding to the power chamber (202), and a working installation position and a maintenance installation position are provided on the fixed bracket (301). The stirring motor (302) is installed at the working installation position on the fixed bracket (301). The output end of the fixed bracket (301) is connected to the transmission shaft (304) through a chain transmission assembly (303). The chain transmission assembly (303) and the transmission shaft (304) are arranged on the fixed bracket (301) through an outer protective plate (307). The bottom end of the transmission shaft (304) is provided with the vortex stirring head (306) through the mounting seat (305), and the vortex stirring head (306) extends into the vortex chamber (203).

6. The automated melting system for recycled aluminum from cans according to claim 5, characterized in that: The lower portion of the vortex stirring head (306) is a cylindrical structure with a plurality of stirring ports (308) opened on the circumference, and a through opening communicating with the stirring ports (308) is opened at the bottom of the vortex stirring head (306).

7. The automated melting system for recycled aluminum from cans according to claim 5, characterized in that: A lifting bracket (309) is provided on the fixed bracket (301) between the corresponding working installation position and the maintenance installation position, and the lifting bracket (309) is provided with a guide slide bar (310). A guide slider (311) is slidably engaged with the guide slide bar (310), a reel (312) is provided at the bottom of the guide slider (311), a hook (313) is provided at the output end of the reel (312), and a lifting lug (314) is provided at the upper end of the outer protective plate (307).

8. The automated melting system for recycled aluminum from cans according to claim 1, characterized in that: The circulating melting main furnace mechanism (4) comprises a melting and heat-insulating furnace body (401) and a furnace door (402); The melting and heat preservation furnace body (401) is in communication with the side well furnace body (201), the furnace door (402) is connected to the melting and heat preservation furnace body (401) via a hydraulic pressing and lifting mechanism, and a plurality of the heat storage combustion mechanisms (5) are provided on the melting and heat preservation furnace body (401); The side of the melting and heat-insulating furnace body (401) facing the furnace door (402) is an inclined structure.

9. The automated melting system for recycled aluminum from cans according to claim 8, characterized in that: The exhaust gas and smoke treatment mechanism (6) comprises a smoke hood shell (601), an exhaust gas and smoke collection pipe (602) and an exhaust gas and smoke treatment device; The smoke hood shell (601) is arranged above the side well furnace body (201) or above the corresponding furnace door (402) on the melting and heat preservation furnace body (401), the exhaust gas and smoke collection pipe (602) is connected to the smoke hood shell (601), and the exhaust gas and smoke collection pipe (602) is externally connected to the exhaust gas and smoke processor.

10. The control method of an automated melting system for recycled aluminum from cans according to any one of claims 1 to 9, characterized in that: The steps include: A. Vibration feeding of paint-removed waste cans: The paint-removed waste cans are conveyed onto the feeding frame (102), and the vibration motor (103) is started to drive the feeding frame (102) to vibrate. Since the feeding frame (102) is inclined toward the vortex chamber (203), the paint-removed waste cans on the feeding frame (102) are driven to vibrate and transported into the vortex chamber (203); B. Vortex melting of paint-removed waste cans: The stirring motor (302) on the fixed bracket (301) is started, and the transmission shaft (304) is driven to rotate through the chain transmission component (303), thereby driving the vortex stirring head (306) to start rotating. A spiral vortex forming line (204) is provided in the vortex chamber (203). When the vortex stirring mechanism (3) stirs the molten aluminum liquid in the power chamber (202), the molten aluminum liquid in the power chamber (202) is transported to the vortex chamber (203) through the stirring of the vortex stirring mechanism (3). Then, the spiral structure of the vortex forming line (204) causes the molten aluminum liquid to form a vortex rotation, so that the paint-removed waste cans that fall into the vortex chamber (203) are drawn into the bottom of the molten aluminum liquid under the action of the vortex, thereby achieving smokeless and rapid melting, forming molten aluminum liquid, and entering the melting and heat preservation furnace body (401) for circulation; C. Combustion heating and insulation: The regenerative combustion mechanism (5) is used to start combustion, continuously supplying heat and burning to the melting and heat preservation furnace body (401), so that the molten aluminum liquid in the melting and heat preservation furnace body (401) circulates into the side well furnace body (201), thereby ensuring rapid melting processing of the paint-removed waste cans and keeping the molten aluminum liquid in the melting and heat preservation furnace body (401) warm; D. Waste gas and dust treatment: When the side well furnace body (201) is melted, the generated waste gas and smoke enters the waste gas and smoke collection pipe (602) through the smoke hood shell (601). The waste gas and smoke collection pipe (602) effectively processes the waste gas and smoke through the waste gas and smoke processor, thereby reducing the discharge of waste gas and smoke; When the furnace door (402) is opened, the smoke hood shell (601) above the furnace door (402) collects the waste gas and smoke discharged from the melting and heat-insulating furnace body (401) and transports it to the waste gas and smoke collection pipe (602). The waste gas and smoke collection pipe (602) effectively processes the waste gas and smoke through the waste gas and smoke processor, thereby reducing the discharge of waste gas and smoke; E. Cleaning and preheating of melting and holding furnace: When the interior of the melting and holding furnace body (401) needs to be cleaned or repaired, the furnace door (402) is lifted vertically and opened by a hydraulic pressure lifting mechanism, and the cleaning staff uses a forklift and a slag rake to move the slag on the slope for cleaning; Before the paint-removed waste cans are melted, the furnace door (402) is opened, and the paint-removed waste cans are sent to the slope inside the melting and heat-insulating furnace body (401) for drying, and then put into the feeding frame (102) for conveying and loading.

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