A high-efficiency feeder with diverse feeding methods

Abstract

This application relates to a high-efficiency feeder with diversified feeding methods, belonging to the technical field of feeders. It includes a frame, on which a first feeding pipe, a second feeding pipe, and a third feeding pipe are fixedly connected. A primary screening device is installed on the first feeding pipe, and a secondary screening device is installed on the second feeding pipe. This application uses the primary screening device in the first feeding pipe to screen the stone, separating fine sand from gravel. Coarse gravel is discharged through the second discharge pipe, and fine gravel enters the third feeding pipe and is discharged under the action of a conveying device. This completes the screening of fine sand, fine gravel, and coarse gravel in the stone, and each is discharged separately, eliminating the need for manual sorting, reducing labor intensity, and improving work efficiency.

Description

Technical Field

[0001] This application relates to the technical field of feeders, and in particular to a high-efficiency feeder with diversified feeding methods. Background Technology

[0002] Feeding equipment is an auxiliary device in the mechanized storage and transportation system of lime production enterprises. Its main function is to continuously and uniformly feed processed or unprocessed materials from a certain device (hopper, silo, etc.) to the receiving equipment or transport machinery. Vibrating feeders used in mines are used to uniformly or quantitatively supply materials from storage bins or other storage equipment to receiving equipment, and are essential equipment for implementing automated assembly line operations.

[0003] In related technologies, reference can be made to Chinese utility model patent CN206108428U, which discloses a feeder belonging to the field of mechanical equipment technology. The feeder includes a feeding hopper and a downwardly inclined feeding disc. An electric vibrator is installed at the bottom of the feeding disc, and a support rod is installed below the feeding disc. A spring is installed between the support rod and the feeding disc. A limiting plate is installed at the lower part of the feeding hopper, and a material sensing device is installed on the side wall of the feeding disc. The material sensing device is connected to the driving mechanism of the limiting plate.

[0004] However, the aforementioned feeder cannot separate the target ore and impurity ore in the stone when conveying the mined ore, and manual sorting is labor-intensive and costly. Summary of the Invention

[0005] To reduce the workload of sorting transported ore, this application provides a high-efficiency feeder with diversified feeding methods.

[0006] This application provides a high-efficiency feeder with diversified feeding methods, which adopts the following technical solution: A high-efficiency feeder with diversified feeding methods includes a frame, on which a first feeding pipe, a second feeding pipe, and a third feeding pipe are mounted. Each of the first, second, and third feeding pipes is equipped with a conveying device for pushing stones. The stones pass sequentially through the first, second, and third feeding pipes under the action of the conveying devices. Each of the first, second, and third feeding pipes has a feeding hopper at one end, through which the stones enter the first feeding pipe. The first feeding pipe is equipped with a primary screening device. The primary screening device is used for... The process involves screening the fine sand and stone particles in the stone material located in the first feeding pipe. The first feeding pipe is equipped with a first discharge pipe for discharging the fine sand. The stone particles enter the second feeding pipe under the action of the conveying device in the first feeding pipe. The second feeding pipe is equipped with a secondary screening device for screening the stone particles in the second feeding pipe into fine stone particles and coarse stone particles according to their particle size. The second feeding pipe is equipped with a second discharge pipe for discharging the coarse stone particles. The fine stone particles enter the third feeding pipe under the action of the conveying device and are then discharged.

[0007] By adopting the above technical solution, after the ore enters the first feeding pipe from the feeding hopper, the primary screening device in the first feeding pipe is activated to screen the ore, separating the fine sand from the stone particles. The fine sand is discharged through the first discharge pipe on the first feeding pipe, while the stone particles are discharged from the first feeding pipe into the second feeding pipe under the action of the conveying device. The secondary screening device in the second feeding pipe is activated to screen the stone particles into fine and coarse particles according to their particle size. The coarse particles are discharged through the second discharge pipe, while the fine particles are discharged into the third feeding pipe under the action of the conveying device. This completes the screening of fine sand, fine stone particles, and coarse stone particles in the ore, and each particle is discharged separately without the need for manual sorting, reducing labor intensity and improving work efficiency.

[0008] Optionally, the conveying device includes: A conveying shaft is rotatably mounted on a first feeding pipe; Helical blades, which are mounted on the conveying shaft; A conveyor motor is mounted on the first feeding pipe and its output shaft is connected to the conveyor shaft.

[0009] By adopting the above technical solution, the conveyor motor moves to drive the conveyor shaft to rotate, the conveyor shaft rotates to drive the spiral blades to rotate, and the spiral blades rotate to push the stone material to move. Thus, the conveying of the stone material is realized by controlling the conveyor motor.

[0010] Optionally, the primary screening device includes: A primary screening plate, wherein the first discharge pipe is disposed above the first feeding pipe, the bottom end of the first discharge pipe is connected to the top end of the first feeding pipe and communicates with the inside of the first feeding pipe, the primary screening plate is disposed on the first feeding pipe and is located at the connection between the first feeding pipe and the first discharge pipe, and a plurality of first through holes for fine sand to pass through are evenly distributed on the surface of the primary screening plate. A primary screening fan is provided, which is installed on the first feeding pipe and located at the bottom of the first feeding pipe. Several ventilation holes are provided on the side wall of the primary screening fan connected to the first feeding pipe.

[0011] By adopting the above technical solution, the primary screening blower starts and blows air into the first feeding pipe through the ventilation hole. The stone rises under the action of the wind and collides with the primary screening plate. After the stone collides with the primary screening plate, the fine sand in the stone is moved out through the first through hole and enters the first discharge pipe, while the stone particles remain in the primary feeding pipe, thus completing the screening of fine sand and stone particles in the stone.

[0012] Optionally, the first feeding pipe is a round pipe, and the bottom surface of the first feeding pipe that contacts the primary screening blower is horizontally arranged, and the ventilation holes are located on both sides of the conveying shaft in the horizontal direction.

[0013] By adopting the above technical solution, the first feeding pipe is set as a circular pipe, and the ventilation holes are opened at both ends of the conveying shaft. This allows the stone particles to rise under the action of wind force and then fall down along the inner wall of the circular pipe, thereby reducing the probability of stone particles clogging the primary screening plate and ensuring the screening operation of the primary screening plate.

[0014] Optionally, a flow guide shroud is provided at the top of the first feeding pipe. The lower opening of the flow guide shroud is connected to the top of the first feeding pipe, and the upper opening of the flow guide shroud is connected to the bottom of the first discharge pipe. The side wall of the flow guide shroud is inclined, and the upper opening area of ​​the flow guide shroud is smaller than the lower opening area. The first discharge pipe is arranged in an "L" shape and is divided into a vertical part and a horizontal part. The bottom end of the vertical part is connected to the upper opening of the flow guide shroud. A discharge fan is provided on the outer side wall of the horizontal part near the vertical part, and the discharge fan is connected to the interior of the horizontal part.

[0015] By adopting the above technical solution, a guide hood is installed at the top of the first feeding pipe. The guide hood guides the fine sand passing through the first screening plate, so that the fine sand enters the first discharge pipe. Then, the discharge fan is started to push the fine sand out of the first discharge pipe, thus completing the discharge of fine sand from the first discharge pipe.

[0016] Optionally, the secondary screening device includes: The screening pipe is installed on the second feeding pipe and located at the discharge end of the second feeding pipe. The screening pipe is a square pipe. The second discharge pipe is installed on the side wall of the screening pipe and communicates with the inside of the screening pipe. A secondary screening plate is installed on a screening tube. A gap, allowing only fine stone particles to pass through, is left between the bottom of the secondary screening plate and the inner bottom wall of the screening tube. The secondary screening plate is installed at an incline. One end of the secondary screening plate is connected to the inner side wall of the screening tube, and the other end is connected to a second discharge pipe. The distance between the end of the secondary screening plate connected to the screening tube and the second feeding pipe is less than the distance between the end of the secondary screening plate connected to the second discharge pipe and the second feeding pipe. Coarse stone particles are guided by the secondary screening plate into the second discharge pipe and discharged.

[0017] By adopting the above technical solution, after the stone particles enter the second feeding pipe, they move into the screening pipe and come into contact with the secondary screening plate. The smaller fine stone particles pass through the bottom of the secondary screening plate and enter the third feeding pipe, while the larger coarse stone particles are guided by the secondary screening plate and move into the second discharge pipe and are discharged, thus completing the screening of fine and coarse stone particles.

[0018] Optionally, the secondary screening plate is provided with secondary screening columns, and multiple secondary screening columns are provided. The multiple secondary screening columns are evenly distributed at the bottom of the secondary screening plate and are in a vertical state. The gap between two adjacent secondary screening columns is only for fine stone particles to pass through.

[0019] By adopting the above technical solution, multiple secondary screening columns are installed on the secondary screening plate, and fine stone particles pass between two adjacent secondary screening columns, thereby improving the screening effect of the secondary screening plate on fine stone particles and improving the screening accuracy.

[0020] Optionally, a buffer pad is provided on the side wall of the secondary screening plate that contacts the stone particles.

[0021] By adopting the above technical solution, a buffer pad is installed on the secondary screening plate. The buffer pad buffers the collision between the secondary screening plate and the stone particles, reducing the probability of damage to the secondary screening plate after long-term operation and improving the service life of the secondary screening plate.

[0022] Optionally, a rotating sleeve is provided on the secondary screening column, and the rotating sleeve is coated with lubricating oil.

[0023] By adopting the above technical solution, a rotating sleeve coated with lubricating oil is installed on the secondary screening column. When fine stone particles move out from between two adjacent secondary screening columns, the rotating sleeve can rotate to allow the fine stone particles to move out smoothly, reducing the probability of fine stone particles getting stuck between two adjacent secondary screening columns.

[0024] Optionally, the sieve tube is provided with an oil filling pipe, the bottom end of the oil filling pipe is provided with a drip nozzle, the drip nozzle abuts against the rotating sleeve, and the oil filling pipe is filled with lubricating oil.

[0025] By adopting the above technical solution, a lubrication pipe with a bottom drip nozzle that contacts the rotating sleeve is installed on the second feeding pipe. This allows lubricating oil to be dripped onto the surface of the rotating sleeve through the lubrication pipe, eliminating the need to insert the lubrication pipe into the screening pipe. This reduces workload and improves work efficiency.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The stone material is screened by the primary screening device in the first feeding pipe, separating the fine sand from the stone particles. The fine sand is discharged through the first discharge pipe on the first feeding pipe, while the stone particles are discharged from the first feeding pipe and enter the second feeding pipe under the action of the conveying device. The secondary screening device in the second feeding pipe is activated to screen the stone particles into fine stone particles and coarse stone particles according to their particle size. The coarse stone particles are discharged through the second discharge pipe, while the fine stone particles enter the third feeding pipe and are discharged under the action of the conveying device. This completes the screening of fine sand, fine stone particles and coarse stone particles in the stone material, and each particle is discharged separately without the need for manual sorting, which reduces the workload and improves the work efficiency. 2. By installing a guide hood at the top of the first feeding pipe, the guide hood guides the fine sand passing through the primary screening plate, so that the fine sand enters the first discharge pipe. Then, the discharge fan is started to push the fine sand out of the first discharge pipe, thus completing the discharge of fine sand from the first discharge pipe. 3. By setting a lubrication pipe with a bottom drip nozzle that abuts against the rotating sleeve on the second feeding pipe, lubricating oil can be added to the surface of the rotating sleeve through the lubrication pipe without having to insert it into the screening pipe, thus reducing workload and improving work efficiency. Attached Figure Description Figure 1 This is a three-dimensional structural diagram of this application; Figure 2 This is a structural schematic diagram of the primary screening device and conveying device in this application, in which the side wall of the first feeding pipe and the side wall of the first discharging pipe are shown in cross section. Figure 3 This is a schematic diagram of the secondary screening device in this application.

[0027] Reference numerals: 1. Frame; 11. First feeding pipe; 12. Second feeding pipe; 13. Third feeding pipe; 14. Feeding hopper; 2. Primary screening device; 21. Primary screening plate; 22. Primary screening fan; 23. Guide hood; 24. First discharge pipe; 25. Discharge fan; 3. Secondary screening device; 31. Screening pipe; 32. Secondary screening plate; 33. Secondary screening column; 34. Rotating sleeve; 35. Oil filling pipe; 36. Second discharge pipe; 4. Conveying device; 41. Conveying shaft; 42. Spiral blade; 43. Conveying motor. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0029] This application discloses a high-efficiency feeder with diverse feeding methods.

[0030] Reference Figure 1 The high-efficiency feeder with diversified feeding methods includes a frame 1, on which a first feeding pipe 11, a second feeding pipe 12, and a third feeding pipe 13 are fixedly connected. Stone material passes sequentially through the first feeding pipe 11, the second feeding pipe 12, and the third feeding pipe 13. A primary screening device 2 is installed on the first feeding pipe 11, and a secondary screening device 3 is installed on the second feeding pipe 12.

[0031] Reference Figure 1 Feeding hoppers 14 are fixedly installed on the upper surface of one end of the first feeding pipe 11, the second feeding pipe 12, and the third feeding pipe 13. The stone material enters the first feeding pipe 11 through the feeding hoppers 14. Conveying devices 4 are provided in the first feeding pipe 11, the second feeding pipe 12, and the third feeding pipe 13. The conveying devices 4 are used to push the stone material to move.

[0032] Reference Figure 1 and Figure 2 Taking the conveying device 4 on the first feeding pipe 11 as an example, the conveying device 4 includes a conveying shaft 41, a spiral blade 42, and a conveying motor 43. The conveying shaft 41 is rotatably mounted on the first feeding pipe 11, and the spiral blade 42 is fixedly connected to the conveying shaft 41. The conveying motor 43 is fixedly connected to the outer wall of the first feeding pipe 11, and its output shaft is fixedly connected to the conveying shaft 41. The movement of the conveying motor 43 drives the conveying shaft 41 to rotate, the rotation of the conveying shaft 41 drives the spiral blade 42 to rotate, and the rotation of the spiral blade 42 pushes the stone material to move, thereby realizing the conveying of the stone material by controlling the conveying motor 43.

[0033] Reference Figure 1 and Figure 2A primary screening device 2 is installed on the first feeding pipe 11 and is used to screen the fine sand and stone particles in the stone material located in the first feeding pipe 11. The primary screening device 2 includes a primary screening plate 21 and a primary screening blower 22. A guide shroud 23 is fixedly connected to the upper surface of the first feeding pipe 11, and the guide shroud 23 communicates with the interior of the first feeding pipe 11. A first discharge pipe 24 is fixedly connected to the upper surface of the guide shroud 23, and the first discharge pipe 24 communicates with the interior of the guide shroud 23. The sidewall of the guide shroud 23 is inclined, and the upper opening area of ​​the guide shroud 23 is smaller than the lower opening area. The first discharge pipe 24 is L-shaped and is divided into a vertical part and a horizontal part. The bottom end of the vertical part is connected to the upper opening of the guide shroud 23, and a discharge blower 25 is fixedly connected to the outer wall of the horizontal part near the vertical part, and the discharge blower 25 communicates with the interior of the horizontal part.

[0034] Reference Figure 2 The primary screening plate 21 is fixedly connected to the connection between the bottom of the guide shroud 23 and the top of the first feeding pipe 11. Several first through holes, allowing only fine sand to pass through, are evenly distributed on the surface of the primary screening plate 21. The primary screening fan 22 is fixedly connected to the lower surface of the first feeding plate. Several ventilation holes are provided on the side wall of the primary screening fan 22 connected to the first feeding pipe 11, and these ventilation holes are located horizontally on both sides of the conveying shaft 41.

[0035] Reference Figure 2 When the primary screening blower 22 is started, it blows air into the first feeding pipe 11 through the ventilation hole. The stone rises under the action of the wind and collides with the primary screening plate 21. After the stone collides with the primary screening plate 21, the fine sand in the stone moves out from the first through hole and enters the guide hood 23. The guide hood 23 guides the fine sand passing through the primary screening plate 21, so that the fine sand enters the first discharge pipe 24. Then the discharge blower 25 is started to push the fine sand out of the first discharge pipe 24, while the stone particles remain in the primary feeding pipe and continue to move, thus completing the screening of fine sand and stone particles in the stone.

[0036] Reference Figure 1 and Figure 2 The stone particles remaining in the first feeding pipe 11 are discharged from the first feeding pipe 11 and then enter the second feeding pipe 12 through the feeding hopper 14 located on the second feeding pipe 12. The secondary screening device 3 is installed in the second feeding pipe 12 and is used to screen the stone particles located in the second feeding pipe 12 into fine stone particles and coarse stone particles according to their particle size.

[0037] Reference Figure 1 and Figure 3The secondary screening device 3 includes a screening tube 31 and a secondary screening plate 32. The screening tube 31 is fixedly connected to the end of the second feeding tube 12 away from the first feeding tube 11 and communicates with the interior of the first feeding tube 11. The screening tube 31 is a square tube. A second discharge tube 36 is fixedly connected to the outer wall of the screening tube 31 and communicates with the interior of the screening tube 31.

[0038] Reference Figure 1 and Figure 3 The secondary screening plate 32 is fixedly connected to the inner wall of the screening tube 31. A gap, just large enough for fine stones to pass through, is left between the bottom of the secondary screening plate 32 and the inner bottom wall of the screening tube 31. The secondary screening plate 32 is set at an angle. One end of the secondary screening plate 32 is connected to the inner wall of the screening tube 31, and the other end is connected to the second discharge pipe 36. The distance between the end of the secondary screening plate 32 connected to the screening tube 31 and the second feeding pipe 12 is less than the distance between the end of the secondary screening plate 32 connected to the second discharge pipe 36 and the second feeding pipe 12. Coarse stones are guided by the secondary screening plate 32 into the second discharge pipe 36 and discharged. A buffer pad is placed on the side wall of the secondary screening plate 32 that contacts the stones.

[0039] Reference Figure 3 Multiple secondary screening columns 33 are evenly distributed and fixedly connected to the lower surface of the secondary screening plate 32. A rotating sleeve 34 is provided on each secondary screening column 33, and the rotating sleeve 34 is coated with lubricating oil. Several oil filling pipes 35 are fixedly installed on the top of the screening tube 31. The oil filling pipes 35 are filled with lubricating oil, and their bottoms extend into the screening tube 31 and are located above the rotating sleeve 34. A drip nozzle is fixedly connected to the bottom of the oil filling pipe 35, which abuts against the upper surface of the rotating sleeve 34.

[0040] Reference Figure 1 and Figure 3 The third feeding pipe 13 is fixedly connected to the frame 1 and is located below the second feeding pipe 12 and on the side of the second feeding pipe 12 away from the first feeding pipe 11. After entering the second feeding pipe 12, the stone particles move into the screening pipe 31 and contact the secondary screening plate 32. The smaller stone particles pass under the secondary screening plate 32 and enter the third feeding pipe 13, while the larger coarse stone particles are guided by the secondary screening plate 32 and move into the second discharge pipe 36 and are discharged.

[0041] The working principle of this application embodiment is as follows: After the ore enters the first feeding pipe 11 from the feeding hopper 14, the primary screening device 2 in the first feeding pipe 11 is activated to screen the ore, separating the fine sand from the stone particles. The fine sand is discharged through the first discharge pipe 24 on the first feeding pipe 11, while the stone particles are discharged from the first feeding pipe 11 and enter the second feeding pipe 12 under the action of the conveying device 4. The secondary screening device 3 in the second feeding pipe 12 is activated to screen the stone particles into fine and coarse particles according to their particle size. The coarse particles are discharged through the second discharge pipe 36, while the fine particles are discharged into the third feeding pipe 13 under the action of the conveying device 4. This completes the screening of fine sand, fine stone particles, and coarse stone particles in the ore, and each particle is discharged separately without the need for manual sorting, reducing the workload and improving work efficiency.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-efficiency feeder with diversified feeding methods, characterized in that: The machine includes a frame (1), on which a first feeding pipe (11), a second feeding pipe (12), and a third feeding pipe (13) are provided. Each of the first feeding pipe (11), the second feeding pipe (12), and the third feeding pipe (13) is equipped with a conveying device (4) for pushing the stone material. The stone material passes sequentially through the first feeding pipe (11), the second feeding pipe (12), and the third feeding pipe (13) under the action of the conveying device (4). Each of the first feeding pipe (11), the second feeding pipe (12), and the third feeding pipe (13) has a feeding hopper (14) at one end. The stone material enters the first feeding pipe (11) through the feeding hopper (14). A primary screening device (2) is provided on the first feeding pipe (11). This device is used to screen the fine sand and stone particles in the stone material located in the first feeding pipe (11). The first feeding pipe (11) is equipped with a first discharge pipe (24), which is used to discharge the fine sand. The stone particles enter the second feeding pipe (12) under the action of the conveying device (4) in the first feeding pipe (11). The second feeding pipe (12) is equipped with a secondary screening device (3), which is used to screen the stone particles located in the second feeding pipe (12) into fine stone particles and coarse stone particles according to their particle size. The second feeding pipe (12) is equipped with a second discharge pipe (36), which is used to discharge the coarse stone particles. The fine stone particles enter the third feeding pipe (13) and are discharged under the action of the conveying device (4). The secondary screening device (3) includes: The sieve tube (31) is set on the second feeding tube (12) and located at the discharge end of the second feeding tube (12). The sieve tube (31) is a square tube. The second discharge tube (36) is set on the side wall of the sieve tube (31) and communicates with the inside of the sieve tube (31). A secondary screening plate (32) is set on a screening tube (31). A gap is left between the bottom of the secondary screening plate (32) and the inner bottom wall of the screening tube (31) for fine stone particles to pass through. The secondary screening plate (32) is set in an inclined state. One end of the secondary screening plate (32) is connected to the inner side wall of the screening tube (31), and the other end of the secondary screening plate (32) is connected to the second discharge pipe (36). The distance between the end of the secondary screening plate (32) connected to the screening tube (31) and the second feeding pipe (12) is less than the distance between the end of the secondary screening plate (32) connected to the second discharge pipe (36) and the second feeding pipe (12). Coarse stone particles enter the second discharge pipe (36) and are discharged under the guidance of the secondary screening plate (32). The secondary screening plate (32) is provided with secondary screening columns (33), and there are multiple secondary screening columns (33). The multiple secondary screening columns (33) are evenly distributed at the bottom of the secondary screening plate (32) and are in a vertical state. The gap between two adjacent secondary screening columns (33) is only for fine stone particles to pass through. A rotating sleeve (34) is rotatably mounted on the secondary screening column (33), and the rotating sleeve (34) is coated with lubricating oil.

2. The high-efficiency feeder with diversified feeding methods according to claim 1, characterized in that: The conveying device (4) includes: A conveying shaft (41) is rotatably mounted on a first feeding pipe (11); A helical blade (42) is disposed on a conveying shaft (41); A conveyor motor (43) is mounted on the first feeding pipe (11) and its output shaft is connected to the conveyor shaft (41).

3. A high-efficiency feeder with diversified feeding methods according to claim 2, characterized in that: The primary screening device (2) includes: A primary screening plate (21) is provided above the first feeding pipe (11), the bottom end of the first discharge pipe (24) is connected to the top of the first feeding pipe (11) and communicates with the inside of the first feeding pipe (11), the primary screening plate (21) is provided on the first feeding pipe (11) and located at the connection between the first feeding pipe (11) and the first discharge pipe (24), and a number of first through holes for fine sand to pass through are evenly distributed on the surface of the primary screening plate (21). A primary screening fan (22) is installed on the first feeding pipe (11) and located at the bottom of the first feeding pipe (11). Several ventilation holes are provided on the side wall of the primary screening fan (22) connected to the first feeding pipe (11).

4. A high-efficiency feeder with diversified feeding methods according to claim 3, characterized in that: The first feeding pipe (11) is a round pipe. The bottom surface of the first feeding pipe (11) that contacts the primary screening blower (22) is horizontally set. The ventilation holes are located on both sides of the conveying shaft (41) in the horizontal direction.

5. A high-efficiency feeder with diversified feeding methods according to claim 4, characterized in that: The first feeding pipe (11) is provided with a flow guide hood (23) at the top. The lower opening of the flow guide hood (23) is connected to the top of the first feeding pipe (11), and the upper opening of the flow guide hood (23) is connected to the bottom of the first discharge pipe (24). The side wall of the flow guide hood (23) is inclined. The upper opening area of ​​the flow guide hood (23) is smaller than the lower opening area. The first discharge pipe (24) is arranged in an "L" shape. The first discharge pipe (24) is divided into a vertical part and a horizontal part. The bottom end of the vertical part is connected to the upper opening of the flow guide hood (23). A discharge fan (25) is provided on the outer side wall of the horizontal part near the vertical part. The discharge fan (25) is connected to the interior of the horizontal part.

6. A high-efficiency feeder with diversified feeding methods according to claim 1, characterized in that: A buffer pad is provided on the side wall of the secondary screening plate (32) that is in contact with the stone particles.

7. A high-efficiency feeder with diversified feeding methods according to claim 1, characterized in that: The sieve tube (31) is provided with a lubrication tube (35), and the bottom end of the lubrication tube (35) is provided with a drip nozzle. The drip nozzle abuts against the rotating sleeve (34), and the lubrication tube (35) is filled with lubricating oil.

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