A vacuum feeder for processing feed additives and its use method

Abstract

The invention discloses a vacuum feeder for processing feed additives and a use method thereof, belonging to the technical field of vacuum feeders. A plug valve is arranged on a discharge pipe, a partition is arranged in a vacuum tank, the partition divides the vacuum tank into an exhaust bin and a collection bin, a sealing device and a first gear are arranged in the exhaust bin, the sealing device and the first gear are meshed, a sealing cylinder is arranged at the bottom of the partition, the sealing cylinder is communicated with the partition, the sealing device and the sealing cylinder are movably sealed, a magnetic separation device is arranged in the collection bin, one end of the magnetic separation device is sealed through the partition and meshed with the first gear, and the other end is sealed through the bottom of the vacuum tank. The invention utilizes the negative pressure in the vacuum tank to absorb and screen out metal particles in the feed additives, and ingeniously utilizes the vacuum tank to synchronously remove the absorbed metal particles each time the vacuum tank discharges, and synchronously collects and discharges the metal particles out of the vacuum tank, the operation is fully automatic, and there is no need to discharge the feed additives and the metal particles separately front and back, and the next vacuum feeding of the vacuum tank is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum feeders, and in particular to a vacuum feeder for processing feed additives and a use method thereof. Background Art

[0002] Feed additives refer to small or trace substances added during the production, processing and use of feeds, with the purpose of meeting the nutritional needs of animals, improving feed utilization, promoting animal growth and preventing diseases, etc. During the production of feed additives, the raw materials need to be mixed and stirred, and then dried and ball-milled into powder. During the stirring and ball-milling process, the metal structures in the stirring mechanism and the ball-milling mechanism, the rust of the metal structure itself or the metal microparticles produced by friction with the feed are easily mixed in the feed additives. After these feed additives with metal microparticles are added to the feed, once the animals eat these feeds, they are prone to heavy metal poisoning, so the metal particles in the feed additives need to be removed. A vacuum feeder is a device used in the industrial field to convey powdered and granular materials. A vacuum pump is used to evacuate the vacuum tank to generate negative pressure in the vacuum tank, thereby adsorbing the material into the vacuum tank. In the prior art, when a vacuum feeder is used to feed feed additives, a magnetic suction device, i.e., a magnetic rod, is arranged in the vacuum feeder. When the powdered feed additive enters the vacuum feeder during vacuum feeding, the feed additive impacts the magnetic rod, so that the metal particles in the feed additive are adsorbed by the magnetic rod and separated from the feed additive. However, after the magnetic rod adsorbs the metal particles to a certain extent, the metal particles on the magnetic rod need to be removed. In the prior art, either the vacuum feeder is regularly entered for cleaning, or the magnetic rod is regularly taken out of the vacuum feeder by a driving device and then cleaned, or the magnetic rod is demagnetized so that the metal particles on the magnetic rod fall naturally into the vacuum feeder. However, this technology requires that the feed additive in the vacuum feeder be discharged before the metal particles can be discharged, which is very time-consuming, and the discharge pipeline must be switched, and the operation is very cumbersome. Summary of the invention

[0003] In order to solve the technical problems mentioned in the above background technology, the present invention provides a vacuum feeder for feed additive processing, and the technical solution adopted is as follows: It includes a vacuum tank, a feeding pipe is arranged on one side of the vacuum tank, a vacuum pump is arranged on the top of the vacuum tank, an exhaust pipe is arranged on the vacuum pump, the exhaust pipe is connected to the top of the vacuum tank, a discharge pipe is arranged at the bottom of the vacuum tank, a plug valve is arranged on the discharge pipe, a partition is arranged in the vacuum tank, the partition divides the vacuum tank into an exhaust bin and a collection bin, a sealing device and a first gear are arranged in the exhaust bin, the sealing device is meshed with the first gear, a sealing cylinder is arranged at the bottom of the partition, the sealing cylinder is connected with the partition, the sealing device is movably sealed with the sealing cylinder, a magnetic separation device is arranged in the collection bin, one end of the magnetic separation device is sealed through the partition and meshed with the first gear, and the other end is sealed through the bottom of the vacuum tank.

[0004] Furthermore, the sealing device includes a sleeve, a limit plate is arranged inside the sleeve, a piston rod is arranged on the limit plate, a spring is arranged on the outside of the piston rod, one end of the piston rod passes through the sleeve and a sealing plug is arranged at the end, and rack teeth are also arranged on the piston rod, and the rack teeth on the piston rod are meshed with the first gear.

[0005] Furthermore, the magnetic separation device includes a magnetic separation mechanism and a material separation mechanism. The magnetic separation mechanism is located on the upper side of the material separation mechanism. The magnetic separation mechanism includes a fixed ring. A fixed rod is provided on the fixed ring. The fixed rod is fixed to the inner wall of the vacuum tank. A plurality of magnetic rods are provided at the bottom of the fixed ring. A plurality of through openings are provided on the fixed ring. A rack is also provided at the bottom of the fixed ring.

[0006] Furthermore, the fixing ring is made of plastic.

[0007] Furthermore, the material distribution mechanism includes a material distribution bin, a material picking piece is provided on the material distribution bin, a lifting rod is provided on the upper part of the material distribution bin, the lifting rod seal passes through the partition, the lifting rod is provided with rack teeth on the upper part of the partition and the rack teeth are meshed with the first gear, and a discharge pipe is provided at the bottom of the material distribution bin, and the discharge pipe seal passes through the bottom of the vacuum tank.

[0008] Furthermore, the sub-silo is pyramid-shaped.

[0009] Furthermore, the material picking part includes an L-shaped material picking tube arranged on the material distribution bin, a material discharging tube is arranged in the L-shaped material picking tube, the upper end of the material discharging tube is a conical surface, a connecting rod is arranged on the material discharging tube, the connecting rod is connected to the inner wall of the L-shaped material picking tube, a sealing cover is arranged on the L-shaped material picking tube, a hinge seat is arranged on the L-shaped material picking tube, a hinge shaft is arranged on the hinge seat, a second gear is arranged on the hinge shaft, and a hinge plate is also arranged on the hinge shaft, the hinge plate is connected to the sealing cover, and both the L-shaped material picking tube and the material discharging tube are made of plastic.

[0010] Furthermore, a U-shaped limiting rod is arranged on the hinged seat.

[0011] The method of use includes the following steps: Step 1: Start the vacuum pump, which evacuates the exhaust bin through the exhaust pipe, so that the exhaust bin generates negative pressure. At this time, the air pressure in the collecting bin is greater than the pressure in the exhaust bin, and one end of the sealing device is pressed and moves upward to separate from the partition. The exhaust bin is connected with the collecting bin, and the collecting bin also generates negative pressure. The feed additive enters the collecting bin through the feed pipe under negative pressure, and one end of the magnetic separation device moves downward; Step 2: The feed additives entering the collecting bin impact the magnetic separation device, the feed additives are dispersed, the metal particles in the feed additives are adsorbed by the magnetic separation device, and the feed additives fall under the action of gravity and fall into the vacuum tank to be collected; Step 3. Every time the feed additives collected in the vacuum tank need to be discharged, turn off the vacuum pump, open the gate valve, and the feed additives in the vacuum tank are discharged through the discharge pipe. At the same time, the sealing device moves down, and one end of the magnetic separation device moves up. The metal particles adsorbed on the magnetic separation device are knocked off and enter the magnetic separation device, and then discharged out of the vacuum tank through the magnetic separation device.

[0012] The present invention has the following advantages: driven by the vacuum pump, the exhaust bin first changes to a negative pressure state, the air pressure in the collecting bin is greater than the pressure in the exhaust bin, one end of the sealing device is pressurized and moves upward to separate from the partition, the exhaust bin is connected to the collecting bin, and the collecting bin also generates negative pressure. The feed additive enters the collecting bin through the feed pipe under negative pressure, and one end of the magnetic separation device moves downward. When the feed additive enters the collecting bin, it impacts the magnetic separation device, so that the feed additive powder is dispersed. The feed additive falls under the action of gravity, and the metal particles in the feed additive are adsorbed by the magnetic separation device. Each time the vacuum tank is discharged, the vacuum tank is When the air pump is closed and the gate valve is opened, the sealing device moves downward and one end of the magnetic separation device moves upward to make the magnetic separation device push off the metal particles adsorbed at its bottom, drop them into the magnetic separation device, and discharge them out of the vacuum tank through the magnetic separation device. The present invention utilizes the negative pressure in the vacuum tank to adsorb and screen out the metal particles in the feed additives, and cleverly utilizes the vacuum tank to simultaneously push off the adsorbed metal particles each time the vacuum tank discharges, and simultaneously collects and discharges them out of the vacuum tank. The operation is fully automatic, and there is no need to discharge the feed additives and metal particles separately front and back, which does not affect the next vacuum loading of the vacuum tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural diagram of the present invention before loading; Figure 2 For the present invention Figure 1 A partial enlarged view of point a in the middle; Figure 3 For the present invention Figure 1 A partial enlarged view of point b in the middle; Figure 4 For the present invention Figure 3 A partial enlarged view of point c in the middle; Figure 5 This is a structural diagram of the present invention when loading materials; Figure 6 For the present invention Figure 5 The local enlarged view at point d in the middle; Figure 7 For the present invention Figure 5 The local enlarged view at e in the middle; Figure 8 For the present invention Figure 7 The local enlarged image at point f in the middle; Fig. 9 This is a top view of the interior of the L-shaped material taking pipe of the present invention; Fig.10 A bottom view of the magnetic separation mechanism of the present invention; Fig.11 For the present invention Figure 5 A top view of the material dispensing mechanism in FIG. Fig.12 For the present invention Fig.11 Top view of the material being taken.

[0014] Figures: 1. vacuum tank, 2. feed pipe, 3. vacuum pump, 4. exhaust pipe, 5. discharge pipe, 6. plug valve, 7. partition, 8. exhaust bin, 9. collecting bin, 10. first gear, 11. sealing cylinder, 12. sleeve, 13. limit plate, 14. piston rod, 15. spring, 16. sealing plug, 17. fixing ring, 18. fixing rod, 19. magnetic bar, 20. through port, 21. rack, 22. material distribution bin, 23. lifting rod, 24. feed pipe, 25. L-shaped feeding pipe, 26. material discharging pipe, 27. connecting rod, 28. sealing cover, 29. hinge seat, 30. hinge shaft, 31. second gear, 32. hinge plate, 33. U-shaped limit rod. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0016] The present invention discloses a vacuum feeder for processing feed additives, comprising a vacuum tank 1, a feeding pipe 2 is arranged on one side of the vacuum tank 1, the feed additives enter the vacuum tank 1 through the feeding pipe 2, a vacuum pump 3 is arranged on the upper part of the vacuum tank 1, the vacuum pump 3 evacuates the vacuum tank 1, an exhaust pipe 4 is arranged on the vacuum pump 3, the exhaust pipe 4 is connected to the upper part of the vacuum tank 1, a discharge pipe 5 is arranged on the bottom of the vacuum tank 1, a gate valve 6 is arranged on the discharge pipe 5, the gate valve 6 controls the switch of the discharge pipe 5, the vacuum tank 1 needs to be discharged after vacuum feeding for a period of time, and the feed additives in the vacuum tank 1 are discharged from the discharge pipe 5 by opening the gate valve 6, a partition 7 is arranged in the vacuum tank 1, the partition 7 is a circular plate surface, and the partition 7 is fixed to the inner wall of the vacuum tank 1 on all sides, The partition 7 divides the vacuum tank 1 into an exhaust bin 8 and a material collection bin 9. A sealing device and a first gear 10 are provided in the exhaust bin 8. The sealing device and the first gear 10 are meshed. When the sealing device moves up and down, it drives the first gear 10 to rotate counterclockwise or clockwise. A sealing cylinder 11 is provided at the bottom of the partition 7. The sealing cylinder 11 is connected with the partition 7. The sealing device and the sealing cylinder 11 are movably sealed. When no material is loaded, one end of the sealing device is in the sealing cylinder 11 to form a seal with the sealing cylinder 11. A magnetic separation device is provided in the material collection bin 9. One end of the magnetic separation device seals and passes through the partition 7 and meshes with the first gear 10, and the other end seals and passes through the bottom of the vacuum tank 1. When the first gear 10 rotates, it drives the magnetic separation device to rise and fall, and the other end of the magnetic separation device also rises and falls synchronously at the bottom of the vacuum tank 1.

[0017] The sealing device includes a sleeve 12, a limit plate 13 is arranged inside the sleeve 12, a piston rod 14 is arranged on the limit plate 13, a spring 15 is arranged on the outside of the piston rod 14, one end of the spring 15 is connected to the limit plate 13, and the other end is connected to the bottom of the sleeve 12, one end of the piston rod 14 passes through the sleeve 12 and a sealing plug 16 is arranged at the end, when the sealing plug 16 moves, it drives the piston rod 14 and the limit plate 13 to rise and fall, so that the spring 15 stretches or rebounds, and the piston rod 14 is also provided with rack teeth, and the rack teeth on the piston rod 14 are meshed with the first gear 10, so that the first gear 10 is driven to rotate when the piston rod 14 moves.

[0018] The magnetic separation device includes a magnetic separation mechanism and a material separation mechanism. The magnetic separation mechanism is located on the upper side of the material separation mechanism. The magnetic separation mechanism includes a fixed ring 17. A fixed rod 18 is provided on the fixed ring 17. The fixed rod 18 is fixed to the inner wall of the vacuum tank 1. The fixed ring 17 is fixed in the vacuum tank 1 by the fixed rod 18. A plurality of magnetic rods 19 are provided at the bottom of the fixed ring 17. The magnetic rods 19 are used to adsorb metal particles in feed additives. A plurality of through openings 20 are provided on the fixed ring 17. A rack 21 is also provided at the bottom of the fixed ring 17. Only a local position of the rack 21 has rack teeth. The fixed ring 17 is made of plastic material to prevent the magnetic rod 19 from making the fixed ring 17 magnetic, so that a part of the metal particles are adsorbed by the fixed ring 17.

[0019] The material distribution mechanism includes a material distribution bin 22, on which a material taking piece is arranged, and a lifting rod 23 is arranged on the upper part of the material distribution bin 22. The lifting rod 23 seals and penetrates the partition 7. The lifting rod 23 is provided with a rack tooth on the upper side of the partition 7, and the rack tooth is meshed with the first gear 10. No matter how the lifting rod 23 is lifted or lowered, the rack tooth part on the lifting rod 23 is always on the upper side of the partition 7, ensuring that the lifting rod 23 penetrates the partition 7 and is lifted or lowered on the partition 7. The bottom of the material distribution bin 22 is provided with a The feed pipe 24 is sealed and passes through the bottom of the vacuum tank 1. The feed pipe 24 rises and falls on the vacuum tank 1 as the feed bin 22 rises and falls. However, no matter where the feed pipe 24 rises and falls, its bottom end will not enter the vacuum tank 1, thereby ensuring that the feed pipe 24 is sealed with the vacuum tank 1 when it rises and falls on the vacuum tank 1. The feed bin 22 is a pyramid, and the cone on the upper part is to prevent the feed additives from accumulating on the upper part of the feed bin 22 when the feed additives fall, and the cone on the bottom is to facilitate the discharge of the metal particles inside.

[0020] The material taking part includes an L-shaped material taking tube 25 arranged on the material dividing bin 22. The angle of the L-shaped material taking tube 25 is more than 90 degrees. When the metal particles enter the L-shaped material taking tube 25, the metal particles fall into the material dividing bin 22 along the L-shaped material taking tube 25. A material dispensing tube 26 is arranged in the L-shaped material taking tube 25. The upper end of the material dispensing tube 26 is a conical surface. When the L-shaped material taking tube 25 and the material dispensing tube 26 rise, the magnetic rod 19 is inserted into the material dispensing tube 26. The diameter of the magnetic rod 19 is the same as the diameter of the material dispensing tube 26. When the wave material tube 26 rises, the metal particles on the magnetic rod 19 are scraped off by its conical surface. The metal particles fall into the gap between the L-shaped material taking tube 25 and the material dispensing tube 26 and enter the L-shaped material taking tube 25. Since the wall thickness of the material dispensing tube 26 is relatively thick and the material dispensing tube 26 is made of plastic, the magnetism of the magnetic rod 19 will not be transmitted to the material dispensing tube 26. After being scraped off, the metal particles cannot be adsorbed on the material dispensing tube 26. In addition, the length of the material dispensing tube 26 is greater than the length of the magnetic rod 19. The material dispensing tube 26 is provided with a connecting rod 27. The connecting rod 27 fixes the material dispensing tube 26 in the L-shaped material dispensing tube 25. The connecting rod 27 is connected to the inner wall of the L-shaped material dispensing tube 25. The L-shaped material dispensing tube 25 is provided with a sealing cover 28. When the material dispensing tube 26 does not scrape the metal particles from the magnetic rod 19, the feed additives are always entering the vacuum tank 1. Therefore, the sealing cover 28 is used to prevent the feed additives from falling into the L-shaped material dispensing tube 25. The L-shaped material dispensing tube 25 is provided with an articulated seat 29, and the articulated seat 29 is provided with an articulated shaft 30. The articulated shaft 30 is provided with a hinge 29. 0 is provided with a second gear 31, and a hinge plate 32 is also provided on the hinge shaft 30. The hinge plate 32 is connected to the sealing cover 28. When the second gear 31 rises, it meshes with the rack 21, so that it rotates clockwise while rising. The clockwise rotation of the second gear 31 drives the hinge shaft 30 to rotate clockwise. The hinge shaft 30 drives the hinge plate 32, and the hinge plate 32 drives the sealing cover 28 to flip open, and the sealing cover 28 is just flipped 90° to open. The L-shaped material taking tube 25 and the material dispensing tube 26 are both made of plastic.

[0021] A U-shaped limit rod 33 is provided on the hinge seat 29. When the sealing cover 28 is turned over 90 degrees to open, the second gear 31 will be separated from the rack tooth part of the rack 21. Therefore, in order to ensure that the sealing cover 28 has the possibility of continuing to turn clockwise, the U-shaped limit rod 33 is used to limit and support it to ensure that it is upright.

[0022] Working steps of the present invention: Please refer to Figure 5-12When loading, the vacuum pump 3 is turned on, and the exhaust bin 8 is exhausted through the exhaust pipe 4, and negative pressure is formed in the exhaust bin 8. The air pressure in the collecting bin 9 is greater than the air pressure in the exhaust bin 8. The air pressure pushes up, so that the sealing plug 16 in the sealing cylinder 11 moves up, and the sealing plug 16 drives the piston rod 14 and the limit plate 13 to move up in the sleeve 12. The spring 15 is stretched until the sealing plug 16 moves up to the upper side of the sealing cylinder 11, and the rack teeth on the piston rod 14 drive the first gear 10 to rotate clockwise, and the first gear 10 drives the rack teeth on the lifting rod 23, so that the lifting rod 23 descends, and the lifting rod 23 drives the sub-bin 22 and the L-shaped material picker on the sub-bin 22 The tube 25 descends, so that the material removal rod 26 is separated from the magnetic rod 19, the magnetic rod 19 is exposed, and the second gear 31 and the sealing cover 28 are separated from the opening 20. When the second gear 31 moves down a distance and meshes with the rack teeth on the rack 21, the rack 21 drives the second gear 31 to rotate 90° counterclockwise, and the sealing cover 28 covers the L-shaped material taking tube 25. The exhaust bin 8 is connected with the collecting bin 9, and the collecting bin 9 also generates negative pressure. The feed additive enters the collecting bin 9 through the feeding pipe 2 and impacts the magnetic rod 19, the feed additive is dispersed, and the metal particles in the feed additive are adsorbed by the magnetic rod 19, and the feed additive falls under the action of gravity and is collected.

[0023] After loading, please refer to Figure 1-4 , the vacuum pump 3 is closed, the gate valve 6 is opened, and the feed additives in the collecting bin 9 are discharged from the discharge pipe 5. At the same time, the air pressure in the vacuum tank 1 is balanced. Under the rebound effect of the spring 15, the limit plate 13, the piston rod 14 and the sealing plug 16 descend, and the sealing plug 16 enters the sealing cylinder 11. When the piston rod 14 descends, the rack teeth on the piston rod 14 drive the first gear 10 to rotate counterclockwise, and the first gear 10 drives the lifting rod 23 to rise. The lifting rod 23 drives the sub-bin 22 and the L-shaped feeding pipe 25 to rise, and the second gear 31 also rises. The discharge pipe 25 rises on the vacuum tank 1. When the second gear 31 is in the process of rising, it meshes with the rack teeth on the rack 21. The second gear 31 rises while Rotate 90° clockwise, then disengage from the rack tooth part of the rack 21, the second gear 31 drives the hinge shaft 30 to rotate clockwise on the hinge seat 29, the hinge shaft 30 drives the hinge plate 32 and the sealing cover 28 to flip 90°, the sealing cover 28 remains vertically open, the sealing cover 28 and the second gear 31 enter the through opening 20, during this process, the material dispensing tube 26 rises facing the magnetic rod 19, the material dispensing tube 26 scrapes off the metal particles on the magnetic rod 19 while rising, so that the metal particles fall into the gap between the L-shaped material dispensing tube 25 and the material dispensing tube 26, the metal particles fall into the L-shaped material dispensing tube 25 and enter the distribution bin 22, and the metal particles collected in the distribution bin 22 are discharged outside the vacuum tank 1 through the discharge pipe 24.

[0024] The present invention is simple to operate, convenient to use, and suitable for comprehensive promotion and application. Although the embodiments of the present invention have been shown and described, it is understood 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 present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum feeder for processing feed additives, comprising a vacuum tank (1), a feeding pipe (2) being arranged on one side of the vacuum tank (1), a vacuum pump (3) being arranged on the upper part of the vacuum tank (1), an exhaust pipe (4) being arranged on the vacuum pump (3), the exhaust pipe (4) being connected to the upper part of the vacuum tank (1), a discharge pipe (5) being arranged on the bottom of the vacuum tank (1), a gate valve (6) being arranged on the discharge pipe (5), characterized in that: A partition (7) is provided in the vacuum tank (1), the partition (7) divides the vacuum tank (1) into an exhaust chamber (8) and a material collection chamber (9), a sealing device and a first gear (10) are provided in the exhaust chamber (8), the sealing device and the first gear (10) are meshed, a sealing cylinder (11) is provided at the bottom of the partition (7), the sealing cylinder (11) is connected to the partition (7), the sealing device and the sealing cylinder (11) are movably sealed, and a magnetic separation device is provided in the material collection chamber (9), one end of the magnetic separation device is sealed through the partition (7) and meshed with the first gear (10), and the other end of the magnetic separation device is sealed through the bottom of the vacuum tank (1); The sealing device comprises a sleeve (12), a limit plate (13) is arranged inside the sleeve (12), a piston rod (14) is arranged on the limit plate (13), a spring (15) is arranged outside the piston rod (14), one end of the piston rod (14) passes through the sleeve (12) and a sealing plug (16) is arranged at the end thereof, and rack teeth are also arranged on the piston rod (14), and the rack teeth on the piston rod (14) are meshed with the first gear (10).

2. A vacuum feeder for processing feed additives according to claim 1, characterized in that: The magnetic separation device comprises a magnetic separation mechanism and a material separation mechanism. The magnetic separation mechanism is located on the upper side of the material separation mechanism. The magnetic separation mechanism comprises a fixed ring (17). A fixed rod (18) is arranged on the fixed ring (17). The fixed rod (18) is fixed to the inner wall of the vacuum tank (1). A plurality of magnetic bars (19) are arranged at the bottom of the fixed ring (17). A plurality of through openings (20) are arranged on the fixed ring (17). A rack (21) is also arranged at the bottom of the fixed ring (17).

3. A vacuum feeder for processing feed additives according to claim 2, characterized in that: The fixing ring (17) is made of plastic.

4. A vacuum feeder for processing feed additives according to claim 3, characterized in that: The material dispensing mechanism comprises a material dispensing bin (22), a material taking piece is arranged on the material dispensing bin (22), a lifting rod (23) is arranged on the upper part of the material dispensing bin (22), the lifting rod (23) seals and passes through the partition (7), a rack tooth is arranged on the upper part of the lifting rod (23) and the rack tooth meshes with the first gear (10), and a material discharge pipe (24) is arranged at the bottom of the material dispensing bin (22), and the material discharge pipe (24) seals and passes through the bottom of the vacuum tank (1).

5. A vacuum feeder for processing feed additives according to claim 4, characterized in that: The sub-bin (22) is in the shape of a pyramid.

6. A vacuum feeder for processing feed additives according to claim 5, characterized in that: The material taking component comprises an L-shaped material taking pipe (25) arranged on the material distribution bin (22), a material displacing pipe (26) being arranged in the L-shaped material taking pipe (25), an upper end of the material displacing pipe (26) being a conical surface, a connecting rod (27) being arranged on the material displacing pipe (26), the connecting rod (27) being connected to the inner wall of the L-shaped material taking pipe (25), a sealing cover (28) being arranged on the L-shaped material taking pipe (25), a hinge seat (29) being arranged on the hinge seat (29), a hinge shaft (30) being arranged on the hinge shaft (30), a second gear (31) being arranged on the hinge shaft (30), a hinge plate (32) being arranged on the hinge shaft (30), the hinge plate (32) being connected to the sealing cover (28), and the L-shaped material taking pipe (25) and the material displacing pipe (26) being both made of plastic.

7. A vacuum feeder for processing feed additives according to claim 6, characterized in that: A U-shaped limiting rod (33) is provided on the hinged seat (29).

8. A vacuum feeder for processing feed additives according to any one of claims 1 to 7, characterized in that: The method of use includes the following steps: Step 1: Start the vacuum pump (3), and the vacuum pump (3) evacuates the exhaust bin (8) through the exhaust pipe (4), so that the exhaust bin (8) generates a negative pressure. At this time, the air pressure in the collection bin (9) is greater than the pressure in the exhaust bin (8), and one end of the sealing device is pressurized to move upward and separate from the partition (7). The exhaust bin (8) is connected to the collection bin (9), and the collection bin (9) also generates a negative pressure. The feed additive enters the collection bin (9) through the feed pipe (2) under the negative pressure, and one end of the magnetic separation device moves downward; Step 2: the feed additives entering the collecting bin (9) impact the magnetic separation device, the feed additives are dispersed, the metal particles in the feed additives are adsorbed by the magnetic separation device, and the feed additives fall under the action of gravity and fall into the vacuum tank (1) to be collected; Step 3: Each time the feed additive collected in the vacuum tank (1) needs to be discharged, the vacuum pump (3) is turned off, the gate valve (6) is opened, and the feed additive in the vacuum tank (1) is discharged through the discharge pipe (5). At the same time, the sealing device moves downward, and one end of the magnetic separation device moves upward. The metal particles adsorbed on the magnetic separation device are pushed off and enter the magnetic separation device, and then discharged from the vacuum tank (1) through the magnetic separation device.

Images