Automatic feeding system for tungsten smelting

Abstract

The invention discloses an automatic feeding system for tungsten smelting, and relates to the technical field of metal production. The automatic bale breaker comprises an automatic bale breaker body, the automatic bale breaker body is used for conducting automatic bale breaking and discharging on bagged materials, a feeding port is formed in the top of the automatic bale breaker body, and a horizontally-arranged traveling mechanism is fixedly installed in the feeding port; and the driving end of the travelling crane mechanism is fixedly provided with a hanging grab hook used for grabbing bagged materials and feeding the bagged materials into the feeding hole. The automatic bale breaker is used for automatic bale breaking, materials are prevented from being polluted, automatic loading is achieved through the travelling crane mechanism and the hanging grab hook, potential safety hazards caused by manual loading are avoided, one bucket elevator can correspond to a plurality of feeding bins through the automatic bin dividing function of the high-position stock bin, the investment is saved, meanwhile, the working efficiency is greatly improved, and the labor intensity of workers is lowered. The feeding amount can be monitored in real time through the weighing function, accurate control is achieved, all the mechanisms are mutually linked, dynamic control over the feeding amount can be achieved, and the automation level is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of metal production technology, and more specifically to an automatic feeding system for tungsten smelting. Background Technology

[0002] Tungsten is an important strategic material, widely used due to its excellent properties such as high melting point, high hardness, wear resistance and corrosion resistance. The main steps of modern tungsten smelting technology include concentrate decomposition, tungsten compound purification, and the production of tungsten powder and dense tungsten. Tungsten has a high melting point, and the decomposition of tungsten concentrate is mainly carried out by two processes: pyrometallurgical and hydrometallurgical.

[0003] Currently, tungsten smelting plants generally use manual unpacking of materials and manual feeding using overhead cranes or electric hoists. This feeding method has the following problems: 1. Manual operation poses certain safety hazards; 2. It is impossible to accurately control the amount of material fed; 3. The material may be contaminated during the manual feeding process. Therefore, an automatic feeding system for tungsten smelting is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the safety hazards, inability to accurately control the amount of material fed into current tungsten smelting plants, and the problem of material contamination. This invention provides an automatic feeding system for tungsten smelting.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution: An automatic feeding system for tungsten smelting includes an automatic unpacking machine for automatically unpacking and discharging bagged materials. The automatic unpacking machine has a feed inlet at its top, and a horizontally mounted trolley mechanism is fixedly installed inside the feed inlet. A hook for grabbing the bagged materials and feeding them into the feed inlet is fixedly installed at the drive end of the trolley mechanism. A stacking platform is fixedly installed on one side of the bottom of the automatic unpacking machine. A primary crusher for crushing the unpacked materials is fixedly installed at the bottom of the automatic unpacking machine. A magnetic separation tunnel for horizontally conveying the crushed materials is fixedly installed at the bottom of the primary crusher. The automatic unpacking machine, the primary crusher, and the magnetic separation tunnel are vertically connected. A magnetic separator is fixedly installed inside the magnetic separation tunnel. A low-level hopper is fixedly installed at the end of the magnetic separation tunnel away from the automatic unpacking machine. A bucket elevator tunnel for vertically lifting the materials is fixedly installed at the top of the low-level hopper.

[0006] Furthermore, a bucket elevator conveyor belt is fixedly installed inside the bucket elevator tunnel, and multiple evenly distributed conveying buckets are fixedly installed on the bucket elevator conveyor belt. One end of the magnetic separator and one end of the bucket elevator conveyor both extend into the interior of the low-level hopper. A transition guide plate is fixedly installed on the top of the end of the magnetic separator near the bucket elevator conveyor. Rotating wheels are rotatably installed on both sides of the conveying bucket. Multiple horizontally arranged rotating rods are fixedly installed between two rotating wheels. A spring telescopic rod is fixedly installed on the end of one of the rotating wheels located outside the conveying bucket. A positioning slot is opened on the telescopic end of the spring telescopic rod. A horizontally arranged telescopic arm is fixedly installed inside the low-level hopper. A rotating arm is fixedly installed on the telescopic end of the telescopic arm. A positioning rod adapted to the positioning slot is fixedly installed on the rotating end of the rotating arm.

[0007] Furthermore, a protective outer shell is fixedly sleeved on the fixed end of the telescopic arm, and a dustproof elastic cloth tube is fixedly installed on one end of the protective outer shell. The dustproof elastic cloth tube is fixedly sleeved on the telescopic end of the telescopic arm.

[0008] Furthermore, a positioning frame is fixedly installed on one side of the hopper, and the telescopic end of the spring telescopic rod is slidably inserted into the positioning frame.

[0009] Furthermore, dust extraction fans are fixedly installed at the top of the bucket elevator tunnel and on the side of the low-level hopper away from the telescopic arm, and the outlet ends of the two dust extraction fans are fixedly installed with the same exhaust dust removal pipe.

[0010] Furthermore, a back-blowing blower is fixedly installed on one side of the automatic unpacking machine, and a back-blowing blower is fixedly installed at the top of the back-blowing blower. A back-blowing air conveyor is fixedly installed at the top of the magnetic separation tunnel. One end of the back-blowing air conveyor is fixedly installed on one side of the bucket elevator tunnel, and a multi-port dust removal pipe is fixedly installed on the other side of the bucket elevator tunnel. The multi-port dust removal pipe is connected to the feed bin A and the feed bin B.

[0011] A tipping pipe is fixedly installed on one side of the top of the bucket elevator tunnel. A high-level hopper for dividing materials is slidably installed at the bottom of the tipping pipe. Furthermore, an inclined primary mesh plate is fixedly installed inside the high-level hopper. A primary discharge pipe is fixedly installed on one side of the high-level hopper, and the position of the primary discharge pipe corresponds to the position of the primary mesh plate.

[0012] Furthermore, a transition pipe is fixedly installed inside the high-level silo. The transition pipe is located at the bottom of the primary mesh plate. A bifurcated pipe is fixedly installed at the bottom end of the transition pipe. The two bottom ends of the bifurcated pipe extend to the outside of the high-level silo. A secondary mesh plate is fixedly installed on the inner walls of the two bottom ends of the bifurcated pipe. A secondary discharge pipe is fixedly installed at the bottom of the high-level silo. The position of the secondary discharge pipe corresponds to the position of the two secondary mesh plates. One end of the primary discharge pipe is connected to the secondary discharge pipe.

[0013] Furthermore, a vibrating frame is fixedly installed on the top of the weighing frame, and a high-frequency vibrator is fixedly installed on the top of the vibrating frame. The vibrating end of the high-frequency vibrator is fixedly connected to the high-level silo.

[0014] The bottom of the high-level silo is symmetrically provided with feeding silos A and B for storing materials in separate compartments. Furthermore, weighing silos are slidably installed at both bottom ends of the branch pipe. The top of feeding silos A and feeding silos B are fixedly installed with the same weighing frame. The two weighing silos are placed on the top of the weighing frame. The bottom ends of the weighing silos are slidably installed with compartment conveying pipes. The bottom ends of the two compartment conveying pipes are respectively fixedly installed on the top of feeding silos A and feeding silos B.

[0015] The beneficial effects of this invention are as follows: 1. This invention utilizes an automatic unpacking machine for automatic unpacking, avoiding material contamination. The combination of the overhead crane mechanism and the hanging hook enables automatic loading, requiring only manual inspection and assistance, thus avoiding the safety hazards associated with manual loading. The automatic compartmenting function of the high-level hopper allows one bucket elevator to correspond to multiple feed hoppers, saving investment while significantly improving work efficiency. The weighing function can monitor the feeding amount in real time, achieving precise control. The interconnected mechanisms enable dynamic control of the feeding amount, greatly improving the level of automation. 2. By setting up a telescopic arm, when the hopper at one end of the magnetic separator receives material, the telescopic arm will drive the rotating arm and the positioning rod to move towards the spring telescopic rod on one side of the hopper. This will cause the positioning rod to be inserted into the positioning slot and the spring telescopic rod to be compressed. Then, the rotating arm will drive the spring telescopic rod and the rotary wheel to rotate through the positioning rod. This will cause multiple rotating rods to stir the material inside the hopper, making the material distribution more uniform, reducing the gap between materials, increasing the carrying capacity of a single hopper, and achieving the expected carrying capacity in a single operation. 3. This invention, by setting up a primary screen and a secondary screen, allows materials transported to the top of the bucket elevator tunnel via the conveyor hopper to be dumped into a high-level hopper as the conveyor hopper rotates. The primary screen then filters the materials, causing oversized particles to roll down the inclined primary screen to the primary discharge pipe for secondary screening. The materials then enter the bifurcation pipe along the transition pipe and fall to the two bottom ends of the bifurcation pipe, where the inclined secondary screen filters out undersized particles, achieving tertiary screening. Simultaneously, the materials are automatically separated into hoppers. Attached Figure Description

[0016] Figure 1 This is a first-view three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the second-view three-dimensional structure of the present invention; Figure 3 This is a side view schematic diagram of the structure of the present invention; Figure 4 This is a schematic diagram of the internal three-dimensional structure of the high-level silo of the present invention; Figure 5 This is the present invention. Figure 4 Schematic diagram of the structure at point A in the middle; Figure 6 This is a schematic diagram of the internal three-dimensional structure of the low-level silo and bucket elevator tunnel of the present invention; Figure 7 This is the present invention. Figure 6 Schematic diagram of the structure at point B; Figure 8 This is the present invention. Figure 6 Schematic diagram of the structure at point C; Figure 9 This is a schematic diagram of the three-dimensional structure of the material hopper of the present invention; Figure 10 This is a three-dimensional structural diagram of the material transfer rod and the spring telescopic rod of the present invention. Figure 11 This is a three-dimensional structural diagram of the telescopic arm and protective shell of the present invention. Attached reference numerals: 1. Automatic unpacking machine; 2. Overhead crane mechanism; 3. Hanging hook; 4. Palletizing platform; 5. Primary crusher; 6. Magnetic separation tunnel; 7. Low-level silo; 8. Bucket elevator tunnel; 9. Tilting pipe; 10. High-level silo; 11. Magnetic separator conveyor; 1101. Transition guide plate; 12. Feed silo A; 13. Feed silo B; 14. Bucket elevator conveyor belt; 15. Conveying hopper; 16. Indexing wheel; 17. Transfer rod; 18. Spring telescopic rod; 1801. Positioning slot; 19. Telescopic arm; 20. Rotating arm ; 21. Positioning rod; 22. Protective shell; 23. Dustproof elastic cloth tube; 24. Positioning frame; 25. Dust extraction fan; 26. Exhaust duct; 27. Primary mesh plate; 28. Transition pipe; 29. ​​Branch pipe; 30. Secondary mesh plate; 31. Primary discharge pipe; 32. Secondary discharge pipe; 33. Weighing frame; 34. Weighing hopper; 35. Compartmentalized conveying pipe; 36. Vibrating frame; 37. High-frequency vibrator; 38. Back-blowing blower pipe; 39. Back-blowing fan; 40. Back-blowing air conveyor pipe; 41. Multi-channel dust removal pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0019] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0021] like Figures 1 to 11 As shown, an automatic feeding system for tungsten smelting includes an automatic unpacking machine 1, which is used to automatically unpack and unload bagged materials, such as... Figure 1 , Figure 2 As shown, specifically, the automatic unpacking machine 1 has a feed inlet at its top, and a horizontally arranged traveling mechanism 2 is fixedly installed inside the feed inlet. A hanging hook 3 for grabbing bagged materials and feeding them into the feed inlet is fixedly installed at the drive end of the traveling mechanism 2. A palletizing table 4 is fixedly installed on one side of the bottom of the automatic unpacking machine 1. A primary crusher 5 for crushing the unpacked materials is fixedly installed at the bottom of the automatic unpacking machine 1. A magnetic separation tunnel 6 for horizontally conveying the crushed materials is fixedly installed at the bottom of the primary crusher 5. The automatic unpacking machine 1, the primary crusher 5, and the magnetic separation tunnel 6 are vertically connected, as shown... Figure 6 , Figure 7 As shown, a magnetic separator conveyor 11 is fixedly installed inside the magnetic separation tunnel 6. A low-level silo 7 is fixedly installed at the end of the magnetic separation tunnel 6 away from the automatic unpacking machine 1. A bucket elevator tunnel 8 for vertically lifting materials is fixedly installed on the top of the low-level silo 7.

[0022] In this embodiment, the traveling mechanism 2 includes a linear module that provides horizontal movement and a winch mechanism that provides vertical lifting and lowering functions, and the hanging hook 3 is mounted on the lifting cable of the winch mechanism.

[0023] More specifically, when the automatic feeding system for tungsten smelting processes bagged materials, the workers stack the material bags on the stacking platform 4, and the overhead crane 2 drives the hanging hook 3 to descend and grab the materials. The workers assist in fixing the hanging hook 3. After the materials are sent into the automatic unpacking machine 1, the outer packaging is automatically removed, and then the materials are scattered into the primary crusher 5. After being initially crushed and buffered by the primary crusher 5, the materials are spread out and fall into the magnetic separation conveyor 11 inside the magnetic separation tunnel 6, so that the magnetic impurities are removed by the magnetic separation conveyor 11.

[0024] like Figure 7 As shown, specifically, a bucket elevator conveyor belt 14 is fixedly installed inside the bucket elevator tunnel 8. Multiple evenly distributed conveying buckets 15 are fixedly installed on the bucket elevator conveyor belt 14. One end of the magnetic separator 11 and one end of the bucket elevator conveyor belt 14 extend into the interior of the low-level hopper 7. A transition guide plate 1101 is fixedly installed at the top of the end of the magnetic separator 11 near the bucket elevator conveyor belt 14. Figure 9 , Figure 10As shown, both sides of the conveying hopper 15 are rotatably mounted with indexing wheels 16, and multiple horizontally arranged rotating rods 17 are fixedly installed between the two indexing wheels 16. A spring telescopic rod 18 is fixedly installed at one end of one of the indexing wheels 16 located outside the conveying hopper 15. A positioning slot 1801 is provided on the telescopic end of the spring telescopic rod 18. Figure 11 As shown, a horizontally arranged telescopic arm 19 is fixedly installed inside the low-level hopper 7. A rotating arm 20 is fixedly installed at the telescopic end of the telescopic arm 19. A positioning rod 21 that is compatible with the positioning slot 1801 is fixedly installed at the rotating end of the rotating arm 20.

[0025] In this embodiment, the magnetic separator 11 is equipped with a gravity sensor and automatically transports the material horizontally to the low-level hopper 7 below the bucket elevator conveyor belt 14. The low-level hopper 7 is equipped with a level gauge. If the overflow of material in the hopper reaches a specified level, the bucket elevator conveyor belt 14 will be automatically started or stopped. This allows the bucket elevator conveyor belt 14 and the conveying hopper 15 to have at least two ways of lifting the material: First, the stationary conveying hopper 15 receives the material transported by the magnetic separator 11, realizing intermittent material transport; Second, the magnetic separator 11 piles the material at the bottom of the low-level hopper 7, and the conveying hopper 15 performs cyclic scooping, realizing continuous material transport.

[0026] More specifically, when material is conveyed into the low-level silo 7, the running bucket elevator conveyor belt 14 drives numerous conveyor buckets 15 to move up and down intermittently, causing the conveyor buckets 15 to stop sequentially at one end of the magnetic separator conveyor 11. Material falls into the inside of the conveyor buckets 15 via the transition guide plate 1101. A small amount of overflowing material accumulates inside the low-level silo 7, and after accumulating, it is scooped up by the moving conveyor buckets 15 and then transported again. The conveyor buckets 15 stopped at one end of the magnetic separator conveyor 11 receive material while simultaneously... The telescopic arm 19 will drive the rotating arm 20 and the positioning rod 21 to move towards the spring telescopic rod 18 on one side of the hopper 15, thereby causing the positioning rod 21 to be inserted into the positioning slot 1801 and compressing the spring telescopic rod 18. Then, the rotating arm 20 drives the spring telescopic rod 18 and the indexing wheel 16 to rotate through the positioning rod 21, thereby causing multiple material rotating rods 17 to stir the material inside the hopper 15, making the material distribution more uniform, reducing the gap between materials, increasing the carrying capacity of a single hopper 15, and making the single carrying capacity reach the expected level.

[0027] like Figure 11 As shown, specifically, a protective shell 22 is fixedly sleeved on the fixed end of the telescopic arm 19, and a dustproof elastic cloth tube 23 is fixedly installed on one end of the protective shell 22. The dustproof elastic cloth tube 23 is fixedly sleeved on the telescopic end of the telescopic arm 19.

[0028] In this embodiment, a cylindrical elastic cloth sleeve can also be connected to the rotating arm 20 through a thin-walled bearing to protect and prevent dust from entering the rotating arm 20.

[0029] More specifically, by setting up a protective shell 22 and a dustproof elastic cloth tube 23, the protective shell 22 and the dustproof elastic cloth tube 23 can cover the telescopic arm 19, which not only protects the telescopic arm 19 and prevents a small amount of splashed material from damaging the telescopic arm 19, but also prevents dust from seeping into the gaps of the telescopic arm 19 and affecting the normal operation of the telescopic arm 19.

[0030] like Figure 9 As shown, specifically, a positioning frame 24 is fixedly installed on one side of the material hopper 15, and the telescopic end of the spring telescopic rod 18 is slidably inserted into the positioning frame 24.

[0031] More specifically, by setting a positioning frame 24, the telescopic end of the spring telescopic rod 18 under normal conditions will be inserted into the positioning frame 24 and limited, so that the telescopic arm 19 can directly control the positioning rod 21 to dock with the positioning slot 1801, saving positioning time. When the spring telescopic rod 18 is compressed by the telescopic arm 19, its telescopic end will disengage from the positioning frame 24, and the size of the positioning rod 21 is smaller than the inner circle size of the positioning frame 24, so that the positioning rod 21 can drive the spring telescopic rod 18 to rotate. When the telescopic arm 19 needs to retract, the rotating arm 20 driven by the internal high-load servo motor will drive the spring telescopic rod 18 to rotate to correspond with the positioning frame 24, so that the spring telescopic rod 18 can dock with the positioning frame 24 again after resetting.

[0032] like Figure 2 As shown, dust extraction fans 25 are fixedly installed at the top of the bucket elevator tunnel 8 and on the side of the low-level hopper 7 away from the telescopic arm 19. Specifically, the exhaust ends of the two dust extraction fans 25 are fixedly installed with the same exhaust dust removal pipe 26.

[0033] More specifically, by setting up a dust extraction fan 25, the dust extraction fan 25 will suck out the dust from the low-level hopper 7 and the high-level hopper 10 respectively, and discharge it through the exhaust dust removal pipe 26, thereby achieving the effect of dust removal. At the same time, the dust and impurities of the material are agitated into the low-level hopper 7 as they are stirred, and guided away from the telescopic arm 19 by the airflow direction of the dust extraction fan 25, thereby protecting the telescopic arm 19.

[0034] like Figure 3 , Figure 4 As shown, a back-blowing blower pipe 38 is fixedly installed on one side of the automatic unpacking machine 1. Specifically, a back-blowing blower 39 is fixedly installed at the top of the back-blowing blower pipe 38, and a back-blowing air conveyor pipe 40 is fixedly installed at the top of the magnetic separation tunnel 6. One end of the back-blowing air conveyor pipe 40 is fixedly installed on one side of the bucket elevator tunnel 8, and a multi-channel dust removal pipe 41 is fixedly installed on the other side of the bucket elevator tunnel 8. The multi-channel dust removal pipe 41 is connected to the feed bin A12 and the feed bin B13.

[0035] More specifically, by setting up a back-blowing fan 39, the back-blowing fan 39 blows air into the automatic unpacking machine 1 through the back-blowing blower pipe 38, thereby blowing up dust inside the enclosed structures such as the automatic unpacking machine 1, the magnetic separation tunnel 6, and the bucket elevator tunnel 8. The dust is then discharged into the dust removal pipeline through the back-blowing air conveyor pipe 40 and the multi-channel dust removal pipe 41. With the help of the dust extraction fan 25, the separation of dust impurities from materials is accelerated.

[0036] like Figure 3 , Figure 5 As shown, a tipping pipe 9 is fixedly installed on one side of the top of the bucket elevator tunnel 8, and a high-level hopper 10 for dividing materials is slidably installed at the bottom of the tipping pipe 9. Specifically, an inclined primary mesh plate 27 is fixedly installed inside the high-level hopper 10, and a primary discharge pipe 31 is fixedly installed on one side of the high-level hopper 10. The position of the primary discharge pipe 31 corresponds to the position of the primary mesh plate 27.

[0037] In this embodiment, the tipping pipe 9 is divided into a pipe located outside the top of the bucket elevator tunnel 8 and a baffle inside the bucket elevator tunnel 8. The pipe is used to connect the bucket elevator tunnel 8 to the high-level hopper 10, and the baffle is used to guide and intercept materials. It works in conjunction with the conveying hopper 15 to prevent the tipped-over materials from leaking into the bucket elevator tunnel 8.

[0038] More specifically, by setting up a primary screen plate 27, the material transported to the top of the bucket elevator tunnel 8 via the hopper 15 will be thrown obliquely downwards by centrifugal force as the hopper 15 rotates. Under the combined obstruction of the baffle at the top of the tipping pipe 9 and the lower hopper 15, it will be dumped into the tipping pipe 9 and then enter the high-level hopper 10, where it will be screened by the primary screen plate 27. Material with a particle size smaller than the aperture of the primary screen plate 27 will fall directly into the transition pipe 28 for the next stage of screening, while material with an excessively large particle size will roll down along the inclined primary screen plate 27 to the primary discharge pipe 31, thus achieving secondary screening.

[0039] like Figure 5 As shown, specifically, a transition pipe 28 is fixedly installed inside the high-level silo 10. The transition pipe 28 is located at the bottom of the primary mesh plate 27. A branch pipe 29 is fixedly installed at the bottom end of the transition pipe 28. The two bottom ends of the branch pipe 29 extend to the outside of the high-level silo 10. A secondary mesh plate 30 is fixedly installed on the inner wall of the two bottom ends of the branch pipe 29. A secondary discharge pipe 32 is fixedly installed at the bottom of the high-level silo 10. The position of the secondary discharge pipe 32 corresponds to the position of the two secondary mesh plates 30. One end of the primary discharge pipe 31 is connected to the secondary discharge pipe 32.

[0040] More specifically, by setting up the branch pipe 29, the material from the secondary screening will enter the branch pipe 29 along the transition pipe 28. The material with a particle size larger than the aperture of the secondary screen plate 30 will fall into the two bottom ends of the branch pipe 29 respectively, while the material with a particle size that is too small will fall quickly through the mesh of the secondary screen plate 30 during the falling process, realizing three screenings. At the same time, it automatically divides the material into compartments. The material that is too small and is screened out will enter the secondary discharge pipe 32, and the material that is too large and is screened out in the second stage will enter the recycling channel along the secondary discharge pipe 32 for reuse.

[0041] like Figure 5 As shown, specifically, a vibrating frame 36 is fixedly installed on the top of the weighing frame 33, and a high-frequency vibrator 37 is fixedly installed on the top of the vibrating frame 36. The vibrating end of the high-frequency vibrator 37 is fixedly connected to the high-level silo 10.

[0042] More specifically, by setting up a high-frequency vibrator 37, during the secondary and tertiary material screening process, the high-frequency vibrator 37 on one side of the high-level silo 10 will apply high-frequency vibration to the high-level silo 10. The high-level silo 10, the transition pipe 28 itself, the turning pipe 9, and the weighing silo 34 are slidably connected, so that they have the displacement of vertical vibration, thereby allowing the internal materials to be separated quickly under vibration, accelerating the progress of secondary and tertiary screening, and preventing blockage.

[0043] like Figure 4 , Figure 5 As shown, the bottom of the high-level silo 10 is symmetrically provided with feeding silos A12 and B13 for separate storage of materials. Specifically, weighing silos 34 are slidably installed at both bottom ends of the branch pipe 29. The same weighing frame 33 is fixedly installed on the top of the feeding silos A12 and B13. The two weighing silos 34 are placed on the top of the weighing frame 33. The bottom ends of the weighing silos 34 are slidably installed with separate conveying pipes 35. The bottom ends of the two separate conveying pipes 35 are respectively fixedly installed on the top of the feeding silos A12 and B13.

[0044] In this embodiment, the top of the weighing hopper 34 is equipped with a control valve that controls the bottom connection of the branch pipe 29, and the bottom is equipped with an automatically switchable multi-way valve for installing a specified number of compartment conveying pipes 35, which can correspond to one or more feed hoppers respectively. The bottom of the feed hopper is further equipped with a support structure and a rotary kiln or secondary mill corresponding to the feed hopper. The weighing frame 33 is equipped with a weighing mechanism and a support frame. The weighing hopper 34 is placed on the support frame, and the weight change inside the weighing hopper 34 is monitored in real time by a gravity sensor.

[0045] More specifically, by setting up weighing hoppers 34, the materials after being divided into two weighing hoppers 34 will enter into the two weighing hoppers 34 respectively, and then be weighed in real time by the weighing frame 33. When the weight reaches the specified value, the control valve at the top closes and the multi-way valve at the bottom opens, so that the material enters the feeding hopper A12, feeding hopper B13 or more feeding hoppers as required through the dividing conveying pipe 35, thereby achieving precise control of the feeding amount.

[0046] This automatic feeding system for tungsten smelting utilizes an automatic unpacking machine 1 for automatic unpacking, preventing material contamination. The combination of the overhead crane mechanism 2 and the hanging hook 3 enables automatic loading, requiring only manual inspection and assistance, thus avoiding the safety hazards associated with manual loading. The automatic compartmenting function of the high-level hopper 10 allows one bucket elevator to correspond to multiple feed hoppers, saving investment and significantly improving work efficiency. The weighing function can monitor the feeding amount in real time for precise control. The interconnected mechanisms enable dynamic control of the feeding amount, greatly improving the level of automation.

[0047] In summary, the feeding process of this automatic feeding system for tungsten smelting includes the following steps: 1. Automatic unpacking: The staff stacks the material bags on the palletizing table 4. The overhead crane 2 drives the hanging hook 3 to descend and grab the material. The staff assists in fixing the hanging hook 3. After the material is sent into the automatic unpacking machine 1, the outer packaging is automatically removed. 2. Crushing and magnetic separation: The material is scattered into the primary crusher 5, where it is initially crushed and buffered. Then, it is spread out and falls into the magnetic separation conveyor 11 inside the magnetic separation tunnel 6, so that the magnetic impurities are removed by the magnetic separation conveyor 11. 3. Bucket Lifting: When the material is conveyed to the interior of the low-level silo 7, the running bucket elevator conveyor belt 14 will drive a number of conveying buckets 15 to move up and down intermittently, so that the conveying buckets 15 stop at one end of the magnetic separator 11 in sequence. The material falls into the interior of the conveying buckets 15 through the transition guide plate 1101. A small amount of overflowing material will accumulate inside the interior of the low-level silo 7. After accumulating, it will be scooped up by the moving conveying buckets 15 and then transported again. 4. Uniform material receiving: While receiving materials, the hopper 15, which is stopped at one end of the magnetic separator 11, will drive the rotating arm 20 and the positioning rod 21 to move towards the spring telescopic rod 18 on one side of the hopper 15. This will cause the positioning rod 21 to be inserted into the positioning slot 1801 and the spring telescopic rod 18 to be compressed. Then, the rotating arm 20 will drive the spring telescopic rod 18 and the indexing wheel 16 to rotate through the positioning rod 21. This will cause multiple rotating rods 17 to stir the material inside the hopper 15, making the material distribution more uniform, reducing the gap between materials, and increasing the carrying capacity of a single hopper 15. 4. Secondary Screening: The material transported to the top of the bucket elevator tunnel 8 via the conveyor hopper 15 will be dumped into the tipping pipe 9 as the conveyor hopper 15 rotates, and then enters the high-level hopper 10, where it is screened by the primary screen plate 27. Material with excessively large particle sizes will roll down the inclined primary screen plate 27 to the primary discharge pipe 31, thus achieving secondary screening. 5. Third-stage screening: The material from the second-stage screening enters the branch pipe 29 along the transition pipe 28, falling into the two bottom ends of the branch pipe 29. There, it is filtered out by the inclined secondary screen plate 30, removing materials with excessively small particle sizes. This achieves third-stage screening and automatic compartmenting. The screened-out material enters the secondary discharge pipe 32, where it merges with the material from the second-stage screening and enters the recycling channel for reuse. 6. Weighing and Dividing: After being divided into bins, the material will enter two weighing bins 34 respectively, and then be weighed in real time by the weighing frame 33. When the weight reaches the specified value, the control valve at the top closes and the multi-way valve at the bottom opens, so that the material enters the feeding bin A12, feeding bin B13 or more feeding bins through the bin conveying pipe 35 as required, so as to achieve precise control of the feeding amount.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An automatic feeding system for tungsten smelting, characterized in that, The system includes an automatic unpacking machine (1), which is used to automatically unpack and unload bagged materials. The top of the automatic unpacking machine (1) has a feed inlet, and a horizontally arranged traveling mechanism (2) is fixedly installed inside the feed inlet. The driving end of the traveling mechanism (2) is fixedly installed with a hanging hook (3) for grabbing the bagged materials and feeding them into the feed inlet. A palletizing table (4) is fixedly installed on one side of the bottom of the automatic unpacking machine (1). A primary crusher (5) for crushing the unpacked materials is fixedly installed at the bottom of the automatic unpacking machine (1). The bottom of the primary crusher (5) is fixedly installed with a tool for horizontally conveying the crushed materials. The magnetic separation tunnel (6) is connected vertically to the automatic unpacking machine (1), the primary crusher (5), and the magnetic separation tunnel (6). A low-level silo (7) is fixedly installed at the end of the magnetic separation tunnel (6) away from the automatic unpacking machine (1). A bucket elevator tunnel (8) for vertically lifting materials is fixedly installed at the top of the low-level silo (7). A tipping pipe (9) is fixedly installed on one side of the top of the bucket elevator tunnel (8). A high-level silo (10) for dividing materials is slidably installed at the bottom of the tipping pipe (9). A feeding silo A (12) and a feeding silo B (13) for dividing and storing materials are symmetrically arranged at the bottom of the high-level silo (10).

2. The automatic feeding system for tungsten smelting according to claim 1, characterized in that, A magnetic separator conveyor (11) is fixedly installed inside the magnetic separation tunnel (6), and a bucket elevator conveyor belt (14) is fixedly installed inside the bucket elevator tunnel (8). Multiple evenly distributed conveying buckets (15) are fixedly installed on the bucket elevator conveyor belt (14). One end of the magnetic separator conveyor (11) and one end of the bucket elevator conveyor belt (14) extend into the interior of the low-level silo (7). A transition guide plate (1101) is fixedly installed on the top of the end of the magnetic separator conveyor (11) closest to the bucket elevator conveyor belt (14). Rotary rollers (16) are rotatably installed on both sides of each conveying bucket (15). Multiple horizontally arranged rotating rods (17) are fixedly installed between the indexing wheels (16). One of the indexing wheels (16) is fixedly installed with a spring telescopic rod (18) at one end outside the material hopper (15). A positioning slot (1801) is provided on the telescopic end of the spring telescopic rod (18). A horizontally arranged telescopic arm (19) is fixedly installed inside the low-level hopper (7). A rotating arm (20) is fixedly installed on the telescopic end of the telescopic arm (19). A positioning insert (21) that matches the positioning slot (1801) is fixedly installed on the rotating end of the rotating arm (20).

3. The automatic feeding system for tungsten smelting according to claim 2, characterized in that, A protective shell (22) is fixedly sleeved on the fixed end of the telescopic arm (19), and a dustproof elastic cloth tube (23) is fixedly installed on one end of the protective shell (22). The dustproof elastic cloth tube (23) is fixedly sleeved on the telescopic end of the telescopic arm (19).

4. An automatic feeding system for tungsten smelting according to claim 2, characterized in that, A positioning frame (24) is fixedly installed on one side of the material hopper (15), and the telescopic end of the spring telescopic rod (18) is slidably inserted into the positioning frame (24).

5. An automatic feeding system for tungsten smelting according to claim 2, characterized in that, Dust-collecting fans (25) are fixedly installed at the top of the bucket elevator tunnel (8) and on the side of the low-level hopper (7) away from the telescopic arm (19), and the air outlets of the two dust-collecting fans (25) are fixedly installed with the same exhaust dust removal pipe (26).

6. An automatic feeding system for tungsten smelting according to claim 1, characterized in that, The high-level silo (10) is fixedly installed with an inclined first-level mesh plate (27), and a first-level discharge pipe (31) is fixedly installed on one side of the high-level silo (10). The position of the first-level discharge pipe (31) corresponds to the position of the first-level mesh plate (27).

7. An automatic feeding system for tungsten smelting according to claim 6, characterized in that, The high-level silo (10) is fixedly installed with a transition pipe (28) at the bottom of the primary mesh plate (27). A branch pipe (29) is fixedly installed at the bottom end of the transition pipe (28). The two bottom ends of the branch pipe (29) extend to the outside of the high-level silo (10). A secondary mesh plate (30) is fixedly installed on the inner wall of the two bottom ends of the branch pipe (29). A secondary discharge pipe (32) is fixedly installed at the bottom of the high-level silo (10). The position of the secondary discharge pipe (32) corresponds to the position of the two secondary mesh plates (30). One end of the primary discharge pipe (31) is connected to the secondary discharge pipe (32).

8. An automatic feeding system for tungsten smelting according to claim 7, characterized in that, Weighing bins (34) are slidably installed at both bottom ends of the branch pipe (29). The same weighing frame (33) is fixedly installed on the top of the feed bin A (12) and the feed bin B (13). The two weighing bins (34) are placed on the top of the weighing frame (33). The bottom ends of the weighing bins (34) are slidably installed with compartment conveying pipes (35). The bottom ends of the two compartment conveying pipes (35) are fixedly installed on the top of the feed bin A (12) and the feed bin B (13), respectively.

9. An automatic feeding system for tungsten smelting according to claim 8, characterized in that, A vibrating frame (36) is fixedly installed on the top of the weighing frame (33), and a high-frequency vibrator (37) is fixedly installed on the top of the vibrating frame (36). The vibrating end of the high-frequency vibrator (37) is fixedly connected to the high-level silo (10).

10. An automatic feeding system for tungsten smelting according to claim 8, characterized in that, A back-blowing blower pipe (38) is fixedly installed on one side of the automatic unpacking machine (1), and a back-blowing blower (39) is fixedly installed at the top of the back-blowing blower pipe (38). A back-blowing air conveyor pipe (40) is fixedly installed at the top of the magnetic separation tunnel (6). One end of the back-blowing air conveyor pipe (40) is fixedly installed on one side of the bucket elevator tunnel (8), and a multi-port dust removal pipe (41) is fixedly installed on the other side of the bucket elevator tunnel (8). The multi-port dust removal pipe (41) is connected to the feed bin A (12) and the feed bin B (13).

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