A drum granulator for fertilizers

Abstract

The application relates to the field of fertilizer granulation technology, in particular to a fertilizer drum granulation device, which comprises a bottom plate, two support plates are fixedly connected to the upper end of the bottom plate, a connecting shaft is movably connected between the two support plates, a rotating drum is movably connected to the outer side of the connecting shaft, two screening rings are fixedly connected to the inner side of the rotating drum, a feeding mechanism is arranged in the connecting shaft, materials are added into the rotating drum through the feeding mechanism, a connecting ring is fixedly connected to the inner side of the rotating drum, and a plurality of grooves are formed in one side of the connecting ring; through the arrangement of the grooves and filtering through holes, the materials with qualified sizes pass through the filtering through holes to enter the next working procedure, and the materials with large sizes are filtered in the grooves; the large particles filtered in the grooves are crushed through a crushing mechanism; the crushed materials are pushed into a connecting box through a pushing mechanism and are finally re-conveyed to the material entering position through a spiral conveying rod to be re-molded.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fertilizer granulation technology, in particular to a fertilizer drum granulation device. BACKGROUND

[0002] As the patent number CN207237923U of China, it discloses a kind of for chemical fertilizer production's drum granulator, bottom is equipped with outer cylinder, bottom is equipped with water storage tank, inner cylinder is equipped in outer cylinder, heating layer is equipped between outer cylinder and inner cylinder, outer cylinder one side is equipped with feeding device, outer cylinder one side is equipped with water guide pipe, water guide pipe other end is connected with water storage tank, water guide pipe is equipped with atomizer, outer cylinder other side is equipped with discharge port, discharge port bottom is equipped with screen, inner cylinder is equipped with buffer guide board near end.

[0003] The above patent separates material particles and material powder by setting two inclined plates with different inclination angles, and the material powder falls back to the original place, and the formed material particles are guided out, and the particles guided out and the material powder accidentally taken out are separated by the screen, but the above scheme has the following disadvantages: although the above scheme can separate material, the qualified size particles and unqualified size particles are separated out together, and the large size material and the small size material of qualified size cannot be separated by the screen, and the unqualified material separated out cannot be returned to the equipment to be granulated again, therefore, we provide a kind of fertilizer drum granulation device. SUMMARY

[0004] The present application aims to provide a kind of fertilizer drum granulation device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] A kind of fertilizer drum granulation device, including bottom plate, the bottom plate upper end is fixedly connected with two support plates, two The support plate is movably connected with connecting shaft, the connecting shaft outer side is movably connected with rotary drum, the rotary drum inner side is fixedly connected with two screening rings, the connecting shaft is equipped with feeding mechanism, material is added to rotary drum by feeding mechanism, the rotary drum inner side is fixedly connected with connecting ring, the connecting ring one side is equipped with a plurality of recesses, the recess is equipped with crushing mechanism, a plurality of filter through holes are arranged in the recess, and the large size fertilizer particles are filtered in the recess through the filter through hole;

[0007] The connecting ring is provided with a baffle near one side of the groove, the baffle is fixedly connected to the outer side of the connecting shaft, the outer side of the connecting shaft is fixedly connected with a first extrusion block, when one end of the crushing mechanism contacts the first extrusion block, the crushing mechanism moves to crush the large-size fertilizer particles in the groove, the groove is provided with a pushing mechanism, the connecting ring is provided with a second extrusion block away from the groove, and the second extrusion block is fixedly connected to the outer side of the connecting shaft;

[0008] A through groove is formed in the outer side of the baffle, the baffle is fixedly connected with a connecting box away from the connecting ring, the position of the connecting box corresponds to the through groove, when one end of the pushing mechanism contacts the second extrusion block, the material in the groove is pushed into the connecting box, a spiral conveying rod is movably connected in the connecting box, the end of the spiral conveying rod away from the baffle extends out of the connecting box and is fixedly connected with a connecting gear, the outer side of the connecting gear is engaged with the inner side of an internal tooth ring, the internal tooth ring is fixedly connected to the inner side of the rotating drum, and an opening is formed in the lower side of the connecting box.

[0009] Preferably, the feeding mechanism comprises a hopper, the hopper is fixedly connected to the outer side of the connecting shaft, a guide cavity is formed in the connecting shaft, one end of the guide cavity is communicated with the hopper, and the other end is communicated with the inner side of the rotating drum.

[0010] Preferably, the crushing mechanism comprises a crushing plate, the crushing plate is arranged in the groove, two guide pipes are fixedly connected to one end of the crushing plate, T-shaped rods are slidably connected in the guide pipes, the guide pipes and the T-shaped rods are movably connected in the connecting ring, the ends of the two T-shaped rods away from the crushing plate are fixedly connected with a connecting plate, and the two ends of the connecting plate are arranged in an inclined manner.

[0011] Preferably, a first spring is fixedly connected to the inner side of the guide pipe, the other end of the first spring is fixedly connected with the T-shaped rod, a second spring is sleeved on the outer side of the T-shaped rod, one end of the second spring is fixedly connected with the guide pipe, and the other end is fixedly connected with the connecting plate.

[0012] Preferably, the pushing mechanism comprises an L-shaped push plate and a scraper, the L-shaped push plate and the scraper are arranged in the groove, one side of the L-shaped push plate and the scraper is fixedly connected with two U-shaped rods, the U-shaped rods are movably connected in the connecting ring, a reset spring is sleeved on the outer side of the U-shaped rod, one end of the reset spring is fixedly connected with the U-shaped rod, and the other end is fixedly connected with the connecting ring.

[0013] Preferably, the two U-shaped rods are fixedly connected with a horizontal plate, and a plurality of cleaning rods are fixedly connected to one side of the horizontal plate near the connecting ring.

[0014] Preferably, a connecting pipe is provided inside the material guiding cavity, and a nozzle is fixedly connected to the outside of the connecting shaft. One end of the connecting pipe is fixedly connected to the nozzle, and the other end passes through the connecting shaft and extends into the external environment.

[0015] Preferably, an external gear ring is fixedly connected to the outer side of the rotating drum, a motor is fixedly connected to the upper end of the base plate, a transmission gear is fixedly connected to the output end of the motor, the transmission gear meshes with the external gear ring, and a discharge port is opened on the outer side of the rotating drum.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting two screening rings, small particles and powder materials that do not meet the size requirements are screened; by setting several grooves and filter holes, materials of qualified size pass through the filter holes to enter the next process; large particles are filtered in the grooves; the large particles filtered in the grooves are crushed by the crushing mechanism; the crushed material is pushed into the connecting box by the pushing mechanism; and finally, the crushed material is transported back to the material entry position by the spiral conveyor rod for re-forming, thereby achieving the separation of large particles and qualified small particles, and at the same time, the separated material is transported back to the initial position for re-forming. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0019] Figure 3 This is a three-dimensional cross-sectional view of the present invention;

[0020] Figure 4 This is a three-dimensional cross-sectional view of the connection relationship between the spiral conveyor rod and the connecting box of the present invention;

[0021] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0022] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B;

[0023] Figure 7 This is a three-dimensional cross-sectional view of the connecting ring and groove positions of the present invention;

[0024] Figure 8 This is a schematic diagram of the side cross-section structure of the present invention;

[0025] Figure 9 This is a three-dimensional cross-sectional view of the connection between the crushing plate and the guide tube of the present invention;

[0026] Figure 10 This is a three-dimensional structural diagram showing the positional relationship between the L-shaped pusher plate and the scraper plate of the present invention.

[0027] In the diagram: 1. Base plate; 2. Support plate; 3. Hopper; 4. External gear ring; 5. Rotary drum; 6. Connecting shaft; 7. Transmission gear; 8. Motor; 9. Connecting pipe; 10. Baffle; 11. Crushing plate; 12. Horizontal plate; 13. First extrusion block; 14. Second extrusion block; 15. Connecting box; 16. Connecting gear; 17. Nozzle; 18. Internal gear ring; 19. Spiral conveyor rod; 20. Connecting ring; 21. Guide chamber; 22. Screening ring; 23. L-shaped push plate; 24. Through groove; 25. Discharge port; 26. Cleaning rod; 27. Scraper; 28. T-shaped rod; 29. ​​Second spring; 30. Connecting plate; 31. Groove; 32. Filter through hole; 33. Return spring; 34. U-shaped rod; 35. First spring; 36. Guide pipe; 37. Opening; 38. Drying mechanism. Detailed Implementation

[0028] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-10 The present invention provides a technical solution:

[0030] Example 1:

[0031] A rotary drum granulation device for fertilizer includes a base plate 1, with two support plates 2 fixedly connected to the upper end of the base plate 1. A connecting shaft 6 is movably connected between the two support plates 2, and a rotary drum 5 is movably connected to the outside of the connecting shaft 6. Figure 2 As shown, the rotating drum 5 is set with the left side higher than the right side. Two screening rings 22 are fixedly connected to the inner side of the rotating drum 5. The cross-section of the screening ring 22 is triangular. When the material that has agglomerated into granules moves to the position of the first screening ring 22, the qualified material or the material with a larger volume will pass the screening ring 22 when it rolls due to its own weight. However, the material particles with a small mass and the powdery material that has not formed into granules cannot pass the screening ring 22 when it rolls due to its low weight. The qualified material particles are screened to the position of the connecting ring 20 by the two screening rings 22.

[0032] The connecting shaft 6 is equipped with a feeding mechanism, which adds material to the rotating drum 5. A connecting ring 20 is fixedly connected to the inner side of the rotating drum 5. Several grooves 31 are opened on one side of the connecting ring 20. Since the connecting ring 20 has a slope at the position of the groove 31, large and small particles of material will roll into the groove 31 when the connecting ring 20 rotates. A crushing mechanism is provided in the groove 31. Several filter holes 32 are opened in the groove 31. Large fertilizer particles are filtered into the groove 31 through the filter holes 32.

[0033] A baffle 10 is provided on the side of the connecting ring 20 near the groove 31. The baffle 10 is fixedly connected to the outside of the connecting shaft 6. When the groove 31 containing large particles moves to the position of the baffle 10, the baffle 10 will block the groove 31 to prevent the large particles from falling out of the groove 31. A first extrusion block 13 is fixedly connected to the outside of the connecting shaft 6. One side of the first extrusion block 13 is arc-shaped. When one end of the crushing mechanism contacts the first extrusion block 13, the crushing mechanism moves to crush the large fertilizer particles in the groove 31. A pushing mechanism is provided in the groove 31. A second extrusion block 14 is provided on the side of the connecting ring 20 away from the groove 31. The second extrusion block 14 is fixedly connected to the outside of the connecting shaft 6. The side of the second extrusion block 14 near the first extrusion block 13 is inclined.

[0034] A through groove 24 is provided on the outer side of the baffle 10. A connecting box 15 is fixedly connected to the side of the baffle 10 away from the connecting ring 20. The position of the connecting box 15 corresponds to the through groove 24. When one end of the pushing mechanism contacts the second extrusion block 14, the material located in the groove 31 is pushed into the connecting box 15. A spiral conveying rod 19 is movably connected inside the connecting box 15. The end of the spiral conveying rod 19 away from the baffle 10 extends out of the connecting box 15 and is fixedly connected to the connecting gear 16. The outer side of the connecting gear 16 meshes with the inner side of the internal gear ring 18. The internal gear ring 18 is fixedly connected. An opening 37 is provided on the lower side of the connecting box 15 inside the rotating drum 5. When the rotating drum 5 rotates, it will drive the internal gear ring 18 to rotate. Since the internal gear ring 18 meshes with the connecting gear 16, the connecting gear 16 will drive the screw conveyor rod 19 to rotate when the rotating drum 5 rotates. At this time, the material entering the connecting box 15 will be conveyed and re-enter the rotating drum 5 through the opening 37. A drying mechanism 38 is fixedly installed on the lower side of the connecting shaft 6. When using the drying mechanism 38, equipment that can directly generate heat, such as drying lamp strips, can be selected according to the situation.

[0035] Example 2:

[0036] Based on Example 1, to prevent high-hardness impurities from entering the rotating drum 5 and causing damage to the crushing plate 11 during rolling, the feeding mechanism includes a hopper 3, which is fixedly connected to the outside of the connecting shaft 6. A guide cavity 21 is provided inside the connecting shaft 6. One end of the guide cavity 21 is connected to the hopper 3, and the other end is connected to the inside of the rotating drum 5. Powdered materials are guided into the guide cavity 21 through the hopper 3. The material entering the guide cavity 21 then enters the rotating drum 5. The crushing mechanism includes a crushing plate 11, which is provided with… Within the groove 31, two guide tubes 36 are fixedly connected to one end of the crushing plate 11 near the connecting shaft 6. A T-shaped rod 28 is slidably connected inside the guide tube 36. Both the guide tube 36 and the T-shaped rod 28 are movably connected to the connecting ring 20. The ends of the two T-shaped rods 28 away from the crushing plate 11 are fixedly connected to the connecting plate 30. Both ends of the connecting plate 30 are inclined. When the crushing plate 11 moves to its maximum stroke, it will not contact the groove 31, preventing the material from being completely crushed and stuck inside the groove 31, or a large amount of material from entering the filter through hole 32.

[0037] A first spring 35 is fixedly connected to the inner side of the guide tube 36. The other end of the first spring 35 is fixedly connected to the T-shaped rod 28. A second spring 29 is sleeved on the outer side of the T-shaped rod 28. One end of the second spring 29 is fixedly connected to the guide tube 36, and the other end is fixedly connected to the connecting plate 30. When a hard impurity enters the groove 31, the crushing plate 11 comes into contact with the impurity. As the connecting plate 30 continues to move, the T-shaped rod 28 will move along the guide tube 36. At this time, the first spring 35 located in the guide tube 36 is compressed to prevent the crushing plate 11 from continuing to move and being damaged.

[0038] The feeding mechanism includes an L-shaped pusher plate 23 and a scraper plate 27. Both the L-shaped pusher plate 23 and the scraper plate 27 are disposed within a groove 31. One side of each of the L-shaped pusher plate 23 and the scraper plate 27 is fixedly connected to two U-shaped rods 34. The L-shaped pusher plate 23 allows the scraper plate 27 to scrape off material adhering to the groove 31, causing the material to fall onto the surface of the L-shaped pusher plate 23. When the L-shaped pusher plate 23 retracts, the material scraped off by the scraper plate 27 falls back into the groove 31. The U-shaped rods 34 are movably connected within a connecting ring 20, and a return spring 33 is sleeved on the outer side of the U-shaped rods 34. One end of the spring 33 is fixedly connected to the U-shaped rod 34, and the other end is fixedly connected to the connecting ring 20. Since the second extrusion block 14 is inclined on one side, when the connecting ring 20 continues to rotate, the horizontal plate 12 and the U-shaped rod 34 will be squeezed and moved by the second extrusion block 14. At this time, the L-shaped push plate 23 and the scraper 27 will move. Since the groove 31 containing the crushed material is rotated to the uppermost side, and the groove 31 is connected to the through groove 24, when the L-shaped push plate 23 moves, the material will be pushed into the through groove 24 and enter the connecting box 15.

[0039] Both U-shaped rods 34 are fixedly connected to the horizontal plate 12. Several cleaning rods 26 are fixedly connected to the side of the horizontal plate 12 near the connecting ring 20. A connecting pipe 9 is provided in the material guiding chamber 21. A nozzle 17 is fixedly connected to the outside of the connecting shaft 6. One end of the connecting pipe 9 is fixedly connected to the nozzle 17, and the other end passes through the connecting shaft 6 and extends into the external environment. An external toothed ring 4 is fixedly connected to the outside of the rotating drum 5. A motor 8 is fixedly connected to the upper end of the bottom plate 1. A transmission gear 7 is fixedly connected to the output end of the motor 8. The transmission gear 7 meshes with the external toothed ring 4. A discharge port 25 is opened on the outside of the rotating drum 5.

[0040] Working principle: During use, the powdered material is guided into the guide chamber 21 through the hopper 3. The material entering the guide chamber 21 will enter the rotating drum 5. By turning on the motor 8, the transmission gear 7 connected to its output end will rotate. Since the transmission gear 7 meshes with the external gear ring 4, the rotating drum 5 will rotate along with the transmission gear 7. The liquid is guided into the connecting pipe 9, and finally sprayed into the inside of the rotating drum 5 in the form of water mist through the nozzle 17.

[0041] Because the rotating drum 5 is tilted at a certain angle, the material will roll inside the rotating drum 5 during the rotation process. At this time, the powdered material sprayed with liquid will gradually agglomerate into granules. When the agglomerated granules move to the position of the first screening ring 22, the qualified material will pass through the screening ring 22 when rolling. However, the small material particles and the powdered material that has not formed granules are too light to pass through the screening ring 22 when rolling. The qualified material particles are screened to the position of the connecting ring 20 through the two screening rings 22.

[0042] When the rotating drum 5 rotates, it drives the connecting ring 20 to move. Since the connecting ring 20 has a ramp at the groove 31, large and small particles roll into the groove 31 as it rotates. Qualified particles pass through the filter holes 32, while large, unqualified particles are filtered into the groove 31. When the groove 31 containing large particles moves to the position of the baffle 10, the baffle 10 blocks the groove 31, preventing large particles from escaping. When one connecting plate 30... When the first extrusion block 13 is moved to its position, since one side of the first extrusion block 13 is inclined, when the connecting ring 20 moves the connecting plate 30, the connecting plate 30 will be squeezed and moved by the first extrusion block 13. The movement of the connecting plate 30 will move the crushing plate 11. The large particles of material will be crushed by the movement of the crushing plate 11. When the crushing plate 11 moves to its maximum stroke, it will not contact the groove 31, so as to prevent the material from being completely crushed and stuck in the groove 31, or a large amount of material from entering the filter hole 32.

[0043] When the connecting plate 30 is no longer in contact with the first extrusion block 13, the connecting plate 30 and the crushing plate 11 return to their initial positions under the elastic force of the second spring 29. As the connecting ring 20 continues to move, the horizontal plate 12 and the U-shaped rod 34 will contact the second extrusion block 14. Since the second extrusion block 14 is inclined on one side, the horizontal plate 12 and the U-shaped rod 34 will be squeezed and moved by the second extrusion block 14 as the connecting ring 20 continues to rotate. At this time, the L-shaped push plate 23 and the scraper 27 will move. Since the groove 31 containing the crushed material is now rotated to the top, the... The groove 31 is connected to the through groove 24. Therefore, when the L-shaped push plate 23 moves, the material will be pushed into the through groove 24 and into the connecting box 15. At the same time, the movement of the scraper 27 can push down the material adhering to the groove 31. When the horizontal plate 12 moves, several cleaning rods 26 will enter the corresponding filter holes 32, so that the material entering the filter holes 32 will be pushed back into the groove 31. When the U-shaped rod 34 and the horizontal plate 12 are no longer in contact with the second extrusion block 14, the L-shaped push plate 23 and the scraper 27 will return to the initial position under the elastic force of the return spring 33.

[0044] When the drum 5 rotates, it drives the internal gear ring 18 to rotate. Since the internal gear ring 18 meshes with the connecting gear 16, the connecting gear 16 drives the spiral conveyor rod 19 to rotate when the drum 5 rotates. At this time, the material entering the connecting box 15 will be conveyed and re-enter the drum 5 through the opening 37. After passing through the filter hole 32, the qualified particles will move to the lower side of the drying mechanism 38. The drying mechanism 38 will be opened to dry the material particles. As the drum 5 rotates, when the dried material particles move to the position of the discharge port 25, the particles will be discharged from the drum 5 through the discharge port 25.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary drum granulation device for fertilizer, comprising a base plate, characterized in that: Two support plates are fixedly connected to the upper end of the base plate, and a connecting shaft is movably connected between the two support plates. A rotating drum is movably connected to the outside of the connecting shaft, and two screening rings are fixedly connected to the inside of the rotating drum. A feeding mechanism is provided inside the connecting shaft to add materials into the rotating drum. A connecting ring is fixedly connected to the inside of the rotating drum, and several grooves are opened on one side of the connecting ring. A crushing mechanism is provided in the grooves, and several filter holes are opened in the grooves to filter large-sized fertilizer particles into the grooves. The connecting ring is provided with a baffle on the side near the groove. The baffle is fixedly connected to the outside of the connecting shaft. A first extrusion block is fixedly connected to the outside of the connecting shaft. When one end of the crushing mechanism contacts the first extrusion block, the crushing mechanism moves to crush the large-sized fertilizer particles in the groove. A pushing mechanism is provided in the groove. A second extrusion block is provided on the side of the connecting ring away from the groove. The second extrusion block is fixedly connected to the outside of the connecting shaft. A through groove is provided on the outer side of the baffle. A connecting box is fixedly connected to the side of the baffle away from the connecting ring. The position of the connecting box corresponds to the through groove. When one end of the pushing mechanism contacts the second extrusion block, the material in the groove is pushed into the connecting box. A spiral conveying rod is movably connected inside the connecting box. The end of the spiral conveying rod away from the baffle extends out of the connecting box and is fixedly connected to the connecting gear. The outer side of the connecting gear meshes with the inner side of the internal gear ring. The internal gear ring is fixedly connected to the inner side of the rotating drum. An opening is provided on the lower side of the connecting box. A drying mechanism is fixedly installed on the lower side of the connecting shaft.

2. The rotary drum granulation device for fertilizer according to claim 1, characterized in that: The feeding mechanism includes a hopper, which is fixedly connected to the outside of the connecting shaft. A guide cavity is provided inside the connecting shaft. One end of the guide cavity is connected to the hopper, and the other end is connected to the inside of the rotating drum.

3. The rotary drum granulation device for fertilizer according to claim 1, characterized in that: The crushing mechanism includes a crushing plate disposed in a groove. Two guide tubes are fixedly connected to one end of the crushing plate near the connecting shaft. A T-shaped rod is slidably connected inside the guide tube. Both the guide tube and the T-shaped rod are movably connected to a connecting ring. The ends of the two T-shaped rods away from the crushing plate are fixedly connected to a connecting plate. Both ends of the connecting plate are inclined.

4. The rotary drum granulation device for fertilizer according to claim 3, characterized in that: A first spring is fixedly connected to the inner side of the guide tube, and the other end of the first spring is fixedly connected to the T-shaped rod. A second spring is sleeved on the outer side of the T-shaped rod, and one end of the second spring is fixedly connected to the guide tube, while the other end is fixedly connected to the connecting plate.

5. The rotary drum granulation device for fertilizer according to claim 1, characterized in that: The material pushing mechanism includes an L-shaped push plate and a scraper. Both the L-shaped push plate and the scraper are set in a groove. One side of each of the L-shaped push plate and the scraper is fixedly connected to two U-shaped rods. The U-shaped rods are movably connected to a connecting ring. A return spring is sleeved on the outside of the U-shaped rod. One end of the return spring is fixedly connected to the U-shaped rod, and the other end is fixedly connected to the connecting ring.

6. The rotary drum granulation device for fertilizer according to claim 5, characterized in that: Both of the U-shaped rods are fixedly connected to the horizontal plate, and several cleaning rods are fixedly connected to the side of the horizontal plate near the connecting ring.

7. The rotary drum granulation device for fertilizer according to claim 2, characterized in that: The material guiding chamber is equipped with a connecting pipe, and a nozzle is fixedly connected to the outside of the connecting shaft. One end of the connecting pipe is fixedly connected to the nozzle, and the other end passes through the connecting shaft and extends into the external environment.

8. The rotary drum granulation device for fertilizer according to claim 1, characterized in that: An external gear ring is fixedly connected to the outside of the rotating drum, a motor is fixedly connected to the upper end of the base plate, a transmission gear is fixedly connected to the output end of the motor, the transmission gear meshes with the external gear ring, and a discharge port is opened on the outside of the rotating drum.

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