A briquetting device for recycling non-ferrous scrap metal

Abstract

This invention discloses a briquetting device for recycling non-ferrous scrap metal, relating to the field of metal resource recycling technology. It includes a forming box, a feeding mechanism, a briquetting mechanism, and an atmosphere protection mechanism. A controller is fixedly installed on one outer wall of the forming box, and a weighing plate with a built-in weight sensor is fixedly installed on the bottom inner wall of the forming box. This invention uses a rodless cylinder-driven reciprocating feeding cylinder, combined with a screw feeder and a laser ranging probe, to achieve multi-layer, multi-point uniform distribution of material within the forming box. This effectively avoids the problem of uneven briquetting density distribution caused by material accumulation on one side in traditional devices, improving the overall density consistency of the briquetting. The weighing plate with the built-in weight sensor accurately measures the weight of the material for each briquetting operation, and combined with an ultrasonic thickness sensor to detect the thickness of the briquetting blocks after forming, this invention ensures that the weight and thickness of each briquetting block are within the set range, meeting standardized production requirements.

Description

Technical Field

[0001] This invention relates to the field of metal resource recycling technology, and in particular to a briquetting device for recycling non-ferrous scrap metal. Background Technology

[0002] The recycling of non-ferrous scrap metal is of great significance for conserving mineral resources, reducing energy consumption, and protecting the ecological environment. Briquetting is a crucial step in the recycling process, aiming to compress loose, irregularly shaped non-ferrous metal scrap into high-density, well-defined blocks under high pressure. Briquetting significantly reduces the volume of scrap, thereby decreasing transportation and storage costs. Simultaneously, the high-density briquettes significantly reduce metal loss during subsequent smelting, increasing metal recovery rates and facilitating the circular utilization of metal resources.

[0003] Currently, most briquetting devices on the market use a closed mold cavity combined with hydraulic pressurization. After the waste material is filled into the mold cavity, a hydraulic cylinder drives a press head to compress the waste material. However, existing devices still have the following technical problems in practical applications: Firstly, uneven feeding leads to large deviations in briquette density: Traditional briquetting devices typically use simple gravity feeding or single-point pushing methods, causing waste material to tend to concentrate on one side of the mold cavity, resulting in uneven density distribution of the briquette after pressing, with some areas being loose, affecting the quality of the briquette and the subsequent melting effect. Secondly, there is a lack of consistent control over weight and thickness: Existing equipment mostly relies on manual experience to control the amount of material fed each time, making it difficult to ensure that the weight and thickness of each briquette are consistent, resulting in low product standardization. Thirdly, oxidation is prone to occur during the briquetting process: For easily oxidized non-ferrous metals such as aluminum and magnesium, they are prone to react with oxygen in the air under high temperature and pressure to form an oxide film, reducing the purity of the recycled metal. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a briquetting device for recycling non-ferrous scrap metal, which solves technical problems such as uneven material distribution leading to large density deviations in briquetting, lack of weight and thickness consistency control, and easy oxidation of reactive metals.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A briquetting device for recycling non-ferrous scrap metal includes a forming box, a feeding mechanism, a briquetting mechanism, and an atmosphere protection mechanism. A controller is fixedly installed on one outer wall of the forming box, and a weighing plate with a built-in weight sensor is fixedly installed on the bottom inner wall of the forming box. The feeding mechanism includes a rodless cylinder fixedly installed on the outer wall of the other side of the forming box, a reciprocating slider installed on the piston rod of the rodless cylinder, a feeding cylinder fixedly connected to the top outer wall of the reciprocating slider, a non-ferrous waste metal storage bin fixedly connected to the top left end of the feeding cylinder, and a screw feeder provided on the feeding cylinder. The pressing mechanism includes two hydraulic cylinders symmetrically fixedly installed on the top outer wall of the forming box, a pressing plate adapted to the forming box, two electric heating plates fixedly embedded at the bottom of the pressing plate, a guide assembly, and a pressing block thickness detection assembly. The atmosphere protection mechanism includes a support base welded to the lower outer wall of the rear side of the molding box, a vacuum pump and an inert gas storage tank that are fixedly installed on the top outer wall of the support base in sequence, a first pipeline assembly on the vacuum pump, and a second pipeline assembly on the inert gas storage tank.

[0006] As a preferred technical solution of the present invention, the screw feeder includes a motor bracket fixedly connected to the outer wall of one side of the feeding cylinder, a feeding motor fixedly installed on the side wall of the motor bracket, a transmission shaft rotatably installed in the feeding cylinder, and a screw conveying blade welded to the outer wall of the transmission shaft. The output shaft of the feeding motor passes through the motor bracket and is coaxially fixedly connected to one end of the transmission shaft through a coupling.

[0007] As a preferred technical solution of the present invention, a sliding hole adapted to the feeding cylinder is opened on the upper part of the other side of the forming box, and the outer wall of the feeding cylinder is slidably connected to the inner wall of the sliding hole. A discharge port is opened on the other side of the feeding cylinder, and a laser ranging probe is fixedly embedded inside the other side of the feeding cylinder.

[0008] As a preferred embodiment of the present invention, the pressing plate is slidably connected to the inner wall of the forming box and located above the feeding cylinder, the extension and retraction ends of the two hydraulic cylinders both penetrate through the top of the forming box, and the extension and retraction ends of the two hydraulic cylinders are fixedly connected to the top outer wall of the pressing plate.

[0009] As a preferred technical solution of the present invention, the guide assembly includes four guide shafts that are sequentially welded to the outer walls of the four corners of the top of the pressing plate and four linear bearings that are fixedly embedded in the top of the molding box, and the four guide shafts are movably connected to the four linear bearings respectively.

[0010] As a preferred technical solution of the present invention, the block thickness detection assembly includes a sensor bracket fixedly installed on the top outer wall of the pressing plate and an ultrasonic thickness sensor fixedly installed on the sensor bracket. A detection hole is opened at the top center of the pressing plate, and the detection end of the ultrasonic thickness sensor extends into the detection hole.

[0011] As a preferred technical solution of the present invention, the first pipeline assembly includes an air extraction pipe fixedly connected to the air extraction end of the vacuum pump, an oxygen content detection probe fixedly embedded in the air extraction pipe, and an air extraction solenoid valve installed on the air extraction pipe, and one end of the air extraction pipe is connected to the back of the molding box.

[0012] As a preferred embodiment of the present invention, the second pipeline assembly includes an inert gas delivery pipe fixedly connected to the upper part of the inert gas storage tank, an argon content detection probe fixedly embedded in the inert gas delivery pipe, and a gas delivery solenoid valve installed on the inert gas delivery pipe, wherein one end of the inert gas delivery pipe is connected to the back of the molding box.

[0013] As a preferred embodiment of the present invention, the front of the molding box is hinged with a sealed box door, and the surface of the sealed box door is provided with a transparent viewing window.

[0014] The beneficial effects of this invention are as follows: 1. This invention provides uniform feeding and eliminates briquette density deviation: By using a rodless cylinder-driven reciprocating feeding cylinder in conjunction with a screw feeder and a laser ranging probe, the material is evenly spread in multiple layers and points within the forming box, thereby effectively avoiding the problem of uneven briquette density distribution caused by material accumulation on one side in traditional devices, and improving the overall density consistency of the briquette.

[0015] 2. This invention features precise dual control of weight and thickness to ensure product standardization: The weighing plate with a built-in weight sensor accurately measures the weight of the material for each pressing, and the ultrasonic thickness sensor performs non-contact detection of the thickness of the pressed block after molding, forming a closed-loop feedback to ensure that the weight and thickness of each pressing block are within the set range, meeting the requirements of standardized production.

[0016] 3. This invention uses an inert gas atmosphere to prevent oxidation of active metals: the air inside the chamber is removed by a vacuum pump and then filled with inert argon gas. Oxygen and argon concentration detection probes are set up to keep the molding chamber in a low-oxygen, high-purity argon environment at all times. This effectively avoids the oxidation reaction of active metals such as aluminum and magnesium during heating and pressing, and ensures the purity and reuse value of the recovered metals.

[0017] 4. The present invention uses heating-assisted pressing to reduce energy consumption and improve density: an electric heating plate is embedded at the bottom of the pressing plate to heat the metal scrap during the pressing process, thereby reducing the yield strength and work hardening tendency of the material, making it easier for the material to achieve high density under the same pressure, while reducing the energy consumption of the hydraulic system and improving the briquetting efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the entire invention from the front view; Figure 2This is a three-dimensional structural diagram of the entire invention from the rear view; Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the feeding mechanism of the present invention; Figure 4 This is a three-dimensional enlarged structural diagram of the bottom of the pressing plate of the present invention; Figure 5 This is a partial cross-sectional plan view of the present invention; Figure 6 This is a three-dimensional enlarged structural diagram of the interior of the molding box of the present invention; Figure 7 This is a three-dimensional enlarged structural diagram of the pressing mechanism of the present invention; Figure 8 For the present invention Figure 7 A magnified three-dimensional structural diagram of part A in the middle; Figure 9 This is a three-dimensional enlarged structural diagram of the atmosphere protection mechanism of the present invention.

[0019] In the diagram: 1. Forming box; 2. Rodless cylinder; 3. Reciprocating slider; 4. Feeding cylinder; 5. Motor bracket; 6. Feeding motor; 7. Drive shaft; 8. Screw conveyor blades; 9. Non-ferrous scrap metal storage bin; 10. Sliding hole; 11. Weighing plate; 12. Hydraulic cylinder; 13. Pressing plate; 14. Electric heating plate; 15. Sensor bracket; 16. Ultrasonic thickness sensor; 17. Guide shaft; 18. Linear bearing; 19. Support base; 20. Vacuum pump; 21. Inert gas storage tank; 22. Extraction pipe; 23. Oxygen content detection probe; 24. Extraction solenoid valve; 25. Inert gas delivery pipe; 26. Argon content detection probe; 27. Gas delivery solenoid valve; 28. Controller; 29. ​​Transparent viewing window; 30. Laser ranging probe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1, referring to Figure 1-3 and Figure 5-6 A briquetting device for recycling non-ferrous scrap metal includes a forming box 1, a feeding mechanism, a briquetting mechanism and an atmosphere protection mechanism. A controller 28 is fixedly installed on one outer wall of the forming box 1, and a weighing plate 11 with a built-in weight sensor is fixedly installed on the bottom inner wall of the forming box 1. The electrical components in the feeding mechanism and the weighing plate 11 are electrically connected to the controller 28. Specifically, the feeding mechanism includes a rodless cylinder 2 fixedly installed on the outer wall of the other side of the forming box 1, a reciprocating slider 3 installed on the piston rod of the rodless cylinder 2, a feeding cylinder 4 fixedly connected to the top outer wall of the reciprocating slider 3, a non-ferrous waste metal storage bin 9 fixedly connected to the top left end of the feeding cylinder 4, and a screw feeder provided on the feeding cylinder 4. Furthermore, the screw feeder includes a motor bracket 5 fixedly connected to the outer wall of one side of the feeding cylinder 4, a feeding motor 6 fixedly installed on the side wall of the motor bracket 5, a transmission shaft 7 rotatably installed inside the feeding cylinder 4, and screw conveying blades 8 welded to the outer wall of the transmission shaft 7. The output shaft of the feeding motor 6 passes through the motor bracket 5 and is coaxially and fixedly connected to one end of the transmission shaft 7 through a coupling. Specifically, the screw conveying blades 8 are used to force-feed non-ferrous scrap metal, which can achieve stable and continuous quantitative conveying and avoid material blockage or flow interruption.

[0022] Furthermore, a sliding hole 10 adapted to the feeding cylinder 4 is provided on the upper part of the other side of the forming box 1. The outer wall of the feeding cylinder 4 is slidably connected to the inner wall of the sliding hole 10. A discharge port is provided on the other side of the feeding cylinder 4. A laser ranging probe 30 is fixedly embedded inside the other side of the feeding cylinder 4. Specifically, the sliding cooperation between the feeding cylinder 4 and the sliding hole 10 ensures the linear motion accuracy of the feeding cylinder 4 under the drive of the rodless cylinder 2. The laser ranging probe 30 can detect the position of the feeding cylinder 4 extending into the forming box 1 in real time, so that the controller 28 can accurately control the reciprocating stroke of the feeding cylinder 4, thereby realizing the uniform spreading of materials in the forming box 1 and effectively avoiding uneven material accumulation. Furthermore, a sealed door is hinged to the front of the molding box 1, and a transparent viewing window 29 is provided on the surface of the sealed door; specifically, the sealed door can ensure the airtightness of the molding box 1 during the pressing process and prevent outside air from entering, while the transparent viewing window 29 allows operators to observe the internal pressing status and material distribution from the outside, facilitating debugging and troubleshooting.

[0023] In summary, the working method of this embodiment is as follows: The controller 28 starts the rodless cylinder 2, driving the reciprocating slider 3 and the feeding cylinder 4 to move horizontally back and forth along the sliding hole 10; at the same time, the feeding motor 6 drives the spiral conveying blade 8 to rotate, quantitatively pushing the non-ferrous scrap metal fragments in the non-ferrous scrap metal storage bin 9 into the feeding cylinder 4, and falling into the weighing plate 11 at the bottom of the forming box 1 through the discharge port at the end of the feeding cylinder 4; the laser ranging probe 30 detects the position of the feeding cylinder 4 in real time, and the controller 28 controls the stroke of the rodless cylinder 2 and the start and stop of the feeding motor 6 accordingly, so that the material is evenly spread on the weighing plate 11; the weighing plate 11 with built-in weight sensor monitors the weight of the falling material in real time, and stops feeding when the preset weight value is reached.

[0024] Example 2, refer to Figure 1 , Figure 4 and Figure 7-8This embodiment is an optimization based on embodiment 1. Specifically, the pressing mechanism includes two hydraulic cylinders 12 symmetrically fixedly installed on the top outer wall of the forming box 1, a pressing plate 13 adapted to the forming box 1, two electric heating plates 14 fixedly embedded at the bottom of the pressing plate 13, a guide assembly and a pressing block thickness detection assembly. All electrical components in the pressing mechanism are electrically connected to the controller 28. Furthermore, the pressing plate 13 is slidably connected to the inner wall of the forming box 1 and located above the feeding cylinder 4. The telescopic ends of the two hydraulic cylinders 12 both penetrate the top of the forming box 1, and the telescopic ends of the two hydraulic cylinders 12 are fixedly connected to the top outer wall of the pressing plate 13. Specifically, the sliding fit between the pressing plate 13 and the inner wall of the forming box 1 ensures the verticality and stability of the pressing process. The two hydraulic cylinders 12 are symmetrically arranged, which can provide uniform and powerful downward pressure, ensure the force balance of the pressed block, and improve the density uniformity of the pressed block. Furthermore, the guide assembly includes four guide shafts 17 sequentially welded to the outer walls of the four corners of the top of the pressing plate 13 and four linear bearings 18 fixedly embedded in the top of the forming box 1. The four guide shafts 17 are movably connected to the four linear bearings 18 respectively. Specifically, the guide shafts 17 arranged at the four corners cooperate with the linear bearings 18 to effectively prevent the pressing plate 13 from tilting or jamming during the lifting process. Especially under high pressure conditions, it can maintain the horizontal posture of the pressing plate 13, further improving the uniformity of the thickness and density of the pressed block. Furthermore, the block thickness detection assembly includes a sensor bracket 15 fixedly installed on the top outer wall of the pressing plate 13 and an ultrasonic thickness sensor 16 fixedly installed on the sensor bracket 15. A detection hole is opened at the top center of the pressing plate 13, and the detection end of the ultrasonic thickness sensor 16 extends into the detection hole. Specifically, the ultrasonic thickness sensor 16 can non-contactly measure the thickness of the block after pressing and feed the data back to the controller 28 for judging whether the block is qualified or adjusting the stroke of the next pressing. The detection hole design makes the sensor face the upper surface of the block, and the measurement is accurate and reliable.

[0025] In summary, the working method of this embodiment is as follows: the controller 28 activates two hydraulic cylinders 12 to push the pressing plate 13 vertically downward; the electric heating plate 14 at the bottom of the pressing plate 13 is energized and heated during the pressing process to preheat or assist in heating the scrap metal material, reducing the yield strength of the metal and making it easier to compress and compact; the pressing plate 13 continues to press down until the preset pressure or stroke position is reached, and after holding the pressure for a period of time, the hydraulic cylinders 12 drive the pressing plate 13 to retract and complete the pressing work; after pressing is completed, the ultrasonic thickness sensor 16 emits ultrasonic waves through the detection hole on the pressing plate 13 to the formed pressing block below to measure the thickness of the pressing block, and the measurement data is transmitted to the controller 28. If the thickness exceeds the allowable tolerance, the controller 28 can automatically adjust the pressing stroke parameters and press again to ensure the consistency of the thickness of each pressing block.

[0026] Example 3, referring to Figure 2 , Figure 5 and Figure 9 This embodiment is an optimization based on embodiment 1. Specifically, the atmosphere protection mechanism includes a support base 19 welded to the lower outer wall of the rear of the molding box 1, a vacuum pump 20 and an inert gas storage tank 21 fixedly installed on the top outer wall of the support base 19 in sequence, a first pipeline assembly on the vacuum pump 20 and a second pipeline assembly on the inert gas storage tank 21. All electrical components in the atmosphere protection mechanism are electrically connected to the controller 28. Furthermore, the first piping assembly includes an extraction pipe 22 fixedly connected to the extraction end of the vacuum pump 20, an oxygen content detection probe 23 fixedly embedded in the extraction pipe 22, and an extraction solenoid valve 24 installed on the extraction pipe 22. One end of the extraction pipe 22 is connected to the back of the molding box 1. Specifically, the vacuum pump 20 can extract air from the molding box 1, and the oxygen content detection probe 23 monitors the oxygen concentration in the box in real time. When the oxygen concentration is too high, the controller 28 can start the vacuum pump 20 to extract air. When the oxygen concentration reaches the standard, the controller 28 will close the extraction solenoid valve 24 to stop the extraction work, providing a prerequisite for subsequent inert gas replacement, thereby effectively preventing metal oxidation. Furthermore, the second pipeline assembly includes an inert gas delivery pipe 25 fixedly connected to the upper part of the inert gas storage tank 21, an argon content detection probe 26 fixedly embedded in the inert gas delivery pipe 25, and a gas delivery solenoid valve 27 installed on the inert gas delivery pipe 25. One end of the inert gas delivery pipe 25 is connected to the back of the molding box 1. Specifically, the inert gas storage tank 21 is filled with high-purity argon gas, and protective gas is injected into the molding box 1 through the inert gas delivery pipe 25. The argon content detection probe 26 can monitor the concentration of the injected gas to ensure that a high-purity argon gas environment is formed in the box. When the argon gas concentration in the box reaches the standard, the controller 28 controls the gas delivery solenoid valve 27 to close to stop the gas delivery operation.

[0027] In summary, the working method of this embodiment is as follows: After feeding is completed and before pressing begins, the controller 28 first opens the suction solenoid valve 24 and starts the vacuum pump 20 to extract the air from the molding box 1 through the suction pipe 22; the oxygen content detection probe 23 monitors the oxygen concentration in real time, and when the oxygen concentration drops below the set safety value, the suction solenoid valve 24 and the vacuum pump 20 are closed; subsequently, the controller 28 opens the gas supply solenoid valve 27, and the argon gas in the inert gas storage tank 21 is filled into the molding box 1 through the inert gas delivery pipe 25. The argon gas content detection probe 26 monitors the protective gas concentration in the box until the set value is reached, and then the gas supply solenoid valve 27 is closed to form a low-oxygen protective atmosphere in the molding box 1.

[0028] The usage process of this invention is as follows: Step 1: Automatic feeding: The controller 28 starts the rodless cylinder 2, driving the reciprocating slider 3 and the feeding cylinder 4 to move into the forming box 1; at the same time, the feeding motor 6 is started, driving the spiral conveying blade 8 to rotate, pushing the material in the non-ferrous waste metal storage bin 9 to the right end of the feeding cylinder 4, and falling into the weighing plate 11 through the discharge port; the laser ranging probe 30 detects the extension position of the feeding cylinder 4 in real time, and the controller 28 controls the rodless cylinder 2 to perform reciprocating motion, so that the material forms a uniform thin layer on the weighing plate 11; the weight sensor in the weighing plate 11 continuously accumulates and measures the weight of the falling material, and when the preset weight is reached, the controller 28 stops the feeding motor 6 and drives the rodless cylinder 2 to return the feeding cylinder 4 to the initial position at the left end to avoid interfering with the subsequent downward movement of the pressing plate 13.

[0029] Step 2: Atmosphere Protection Inside the Box: After feeding is completed, controller 28 controls two hydraulic cylinders 12 to move the pressing plate 13 down below the feeding cylinder 4 to form a relatively closed pressing space, preventing a large amount of argon gas that will be subsequently introduced from escaping from the feeding cylinder 4. At this time, controller 28 first opens the evacuation solenoid valve 24 and starts the vacuum pump 20 to evacuate the inside of the molding box 1; the oxygen content detection probe 23 transmits the oxygen concentration signal to controller 28 in real time. When the oxygen concentration is lower than the preset value, controller 28 closes the evacuation solenoid valve 24 and the vacuum pump 20, and then opens the gas supply solenoid valve 27. Argon gas in the inert gas storage tank 21 is filled into the molding box 1 through the inert gas delivery pipe 25. When the argon gas content detection probe 26 detects that the argon gas concentration has reached the preset value, the gas supply solenoid valve 27 is closed, completing the atmosphere replacement.

[0030] Step 3 Heating and Pressing: The controller 28 connects the power supply to the electric heating plate 14 to preheat the bottom of the pressing plate 13; then, the controller 28 controls the solenoid directional valves of the two hydraulic cylinders 12 to make the piston rods of the two hydraulic cylinders 12 extend downwards synchronously, pushing the pressing plate 13 down to heat the scrap metal piled below and reduce its yield strength; when the pressing plate 13 reaches the preset pressure or stroke position, it holds the pressure for a period of time. After the pressure holding is completed, the controller 28 controls the hydraulic cylinders 12 to drive the pressing plate 13 back to the initial position.

[0031] Step 4: Thickness Inspection: After the pressing plate 13 retracts, the controller 28 activates the ultrasonic thickness sensor 16 to emit ultrasonic waves to the already formed aluminum block below to measure its thickness. If the measured thickness value is within the qualified range, the pressing work is completed. If the thickness exceeds the allowable tolerance, the controller 28 can automatically adjust the pressing stroke parameters and press again to ensure the thickness consistency of each block.

[0032] Step 5: Unloading: The operator opens the sealed box door, uses a special tool to remove the pressed metal block, checks that there is no residue in the forming box 1, closes the sealed box door, and the next cycle can begin.

[0033] By repeating the above steps, this invention can achieve continuous, efficient, and high-quality production and molding of non-ferrous scrap metal briquettes, which is conducive to the recycling of non-ferrous scrap metal resources.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A briquetting device for recycling non-ferrous scrap metal, comprising a forming box (1), characterized in that, It also includes a feeding mechanism, a pressing mechanism and an atmosphere protection mechanism. A controller (28) is fixedly installed on one side of the outer wall of the molding box (1), and a weighing plate (11) with a built-in weight sensor is fixedly installed on the bottom inner wall of the molding box (1). The feeding mechanism includes a rodless cylinder (2) fixedly installed on the outer wall of the other side of the forming box (1), a reciprocating slider (3) installed on the piston rod of the rodless cylinder (2), a feeding cylinder (4) fixedly connected to the top outer wall of the reciprocating slider (3), a non-ferrous waste metal storage bin (9) fixedly connected to the top left end of the feeding cylinder (4), and a screw feeder provided on the feeding cylinder (4); The pressing mechanism includes two hydraulic cylinders (12) symmetrically fixedly installed on the top outer wall of the forming box (1), a pressing plate (13) adapted to the forming box (1), two electric heating plates (14) fixedly embedded at the bottom of the pressing plate (13), a guide assembly and a pressing block thickness detection assembly; The atmosphere protection mechanism includes a support base (19) welded to the lower outer wall of the rear of the molding box (1), a vacuum pump (20) and an inert gas storage tank (21) fixedly installed on the top outer wall of the support base (19), a first pipeline assembly on the vacuum pump (20), and a second pipeline assembly on the inert gas storage tank (21).

2. The briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The screw feeder includes a motor bracket (5) fixedly connected to the outer wall of one side of the feeding cylinder (4), a feeding motor (6) fixedly installed on the side wall of the motor bracket (5), a transmission shaft (7) rotatably installed in the feeding cylinder (4), and a screw conveying blade (8) welded to the outer wall of the transmission shaft (7). The output shaft of the feeding motor (6) passes through the motor bracket (5) and is coaxially fixedly connected to one end of the transmission shaft (7) through a coupling.

3. The briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The upper part of the other side of the forming box (1) is provided with a sliding hole (10) that is compatible with the feeding cylinder (4), and the outer wall of the feeding cylinder (4) is slidably connected to the inner wall of the sliding hole (10). The other side of the feeding cylinder (4) is provided with a discharge port, and a laser ranging probe (30) is fixedly embedded inside the other side of the feeding cylinder (4).

4. The briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The pressing plate (13) is slidably connected to the inner wall of the forming box (1) and located above the feeding cylinder (4). The telescopic ends of the two hydraulic cylinders (12) penetrate the top of the forming box (1), and the telescopic ends of the two hydraulic cylinders (12) are fixedly connected to the top outer wall of the pressing plate (13).

5. A briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The guide assembly includes four guide shafts (17) welded sequentially to the outer walls of the four corners of the top of the pressing plate (13) and four linear bearings (18) fixedly embedded in the top of the molding box (1), and the four guide shafts (17) are movably connected to the four linear bearings (18) respectively.

6. A briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The block thickness detection assembly includes a sensor bracket (15) fixedly installed on the top outer wall of the pressing plate (13) and an ultrasonic thickness sensor (16) fixedly installed on the sensor bracket (15). A detection hole is opened at the top center of the pressing plate (13), and the detection end of the ultrasonic thickness sensor (16) extends into the detection hole.

7. A briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The first pipeline assembly includes a suction pipe (22) fixedly connected to the suction end of the vacuum pump (20), an oxygen content detection probe (23) fixedly embedded in the suction pipe (22), and a suction solenoid valve (24) installed on the suction pipe (22). One end of the suction pipe (22) is connected to the back of the molding box (1).

8. A briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The second pipeline assembly includes an inert gas delivery pipe (25) fixedly connected to the upper part of the inert gas storage tank (21), an argon content detection probe (26) fixedly embedded in the inert gas delivery pipe (25), and a gas delivery solenoid valve (27) installed on the inert gas delivery pipe (25), and one end of the inert gas delivery pipe (25) is connected to the back of the molding box (1).

9. A briquetting device for recycling non-ferrous scrap metal according to claim 1, characterized in that, The molding box (1) is hinged to a sealed box door on the front, and the surface of the sealed box door is provided with a transparent viewing window (29).

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