Efficient compound fertilizer granulating device
By introducing a screening structure and a motor-driven granulation roller into the compound fertilizer granulation device, combined with air pump blowing and screen plate vibration, the problem of uneven particle size was solved, and the uniformity of particle size and product quality were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI JINGCHENG NEW FERTILIZER CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-09
AI Technical Summary
Existing compound fertilizer granulation equipment produces compound fertilizer particles of varying sizes after granulation, which affects the product's appearance quality and subsequent storage, transportation, and fertilization effects.
A compound fertilizer granulation device was designed, which includes a granulation box, a screening box, and a motor-driven system. The first motor drives the granulation roller to rotate, and with the help of an air pump blowing air and a vibrating screen plate, uniform screening of granules is achieved, ensuring that the granules are of consistent size.
This improved the uniformity of compound fertilizer granules, enhanced product quality and fertilization effectiveness, and ensured smooth storage and transportation.
Smart Images

Figure CN224332097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compound fertilizer production technology, and in particular to a high-efficiency compound fertilizer granulation device. Background Technology
[0002] Compound fertilizers play a vital role in agricultural production, and their quality directly affects crop yields. Currently, the amino acid method for compound fertilizer production has become the mainstream production process widely adopted by many compound fertilizer companies. Granulators are an indispensable piece of equipment in the compound fertilizer production process, mainly used to granulate finished or semi-finished fertilizers to meet product quality requirements.
[0003] Existing compound fertilizer granulation equipment uses a motor to drive two sets of granulation rollers to rotate in opposite directions, feeding the compound fertilizer into the granulation box. The granulation holes on the upper surfaces of the two sets of granulation rollers rotate in opposite directions to promote the compound fertilizer to form granules.
[0004] However, existing granulation equipment is not equipped with a dedicated screening structure, which results in the compound fertilizer particles of varying sizes after the granulation process. Some particles may meet the expected size standards, but a considerable number of particles are too large or too small. Uneven particle size not only affects the appearance quality of the compound fertilizer product, but may also have an adverse effect on its subsequent storage, transportation and fertilization effect. Utility Model Content
[0005] The existing compound fertilizer granulation equipment produces compound fertilizer particles of varying sizes after granulation. This uneven particle size not only affects the appearance quality of the compound fertilizer product, but may also have adverse effects on its subsequent storage, transportation, and fertilization effect.
[0006] The technical solution of this utility model is as follows: a high-efficiency compound fertilizer granulation device, including a granulation box; it also includes a first motor and a feeding device; a screening box is provided at the lower end of the granulation box, a discharge hopper is provided on one side of the screening box, a feeding hopper is provided at the lower end of the screening box, a feeding component is provided on one side of the feeding hopper, a first motor is provided on one side of the granulation box, a first granulation roller is provided at the output end of the first motor, a first gear is provided on the outer side of the first granulation roller, a second gear is provided on one side of the first gear, the second gear meshes with the first gear, a second granulation roller is provided on the inner side of the second gear, an air pump is provided on one side of the granulation box, an air blowing pipe is provided on one side of the air pump, a first pulley is provided on the outer side of the first granulation roller, a transmission belt is provided on one side of the first pulley, a second pulley is provided on the inner side of the transmission belt, a first rotating rod is provided on the inner side of the second pulley, a cam is provided on the outer side of the first rotating rod, a fixed plate is provided on the inner side of the screening box, a spring is provided at the upper end of the fixed plate, a connecting plate is provided on one side of the spring, a sliding rod is provided on one side of the connecting plate, and a sieve plate for screening particle size is provided on one side of the connecting plate.
[0007] Preferably, the inner sides of the first granulating roller and the second granulating roller are hollow, and the first granulating roller and the second granulating roller are rotatably connected to the outside of the air blowing pipe.
[0008] Preferably, the granulation box has a groove, and the second granulation roller is rotatably connected to the inside of the granulation box through the groove.
[0009] Preferably, the screening box has a second slot, and the first rotating rod is rotatably connected to the inside of the screening box through the second slot.
[0010] Preferably, the fixing plate has a groove three, and the slide rod is slidably connected to the inner side of the fixing plate through the groove three.
[0011] Preferably, the feeding assembly includes a conveying pipe, a conveying pipe on one side of the hopper, a feeding cylinder on one side of the conveying pipe, a feeding pipe on one side of the feeding cylinder, a second motor at the upper end of the feeding cylinder, a second rotating rod at the output end of the second motor, spiral blades for lifting materials on the outer side of the second rotating rod, a third motor on one side of the hopper, a first crushing roller for crushing materials at the output end of the third motor, a third gear on the outer side of the first crushing roller, a fourth gear on one side of the third gear, the fourth gear meshing with the third gear, and a second crushing roller on the inner side of the fourth gear.
[0012] Preferably, the feeding cylinder has a slot four, and the spiral blades are rotatably connected to the inner side of the feeding cylinder through the slot four.
[0013] Preferably, the hopper has a five-slotted groove, and the second crushing roller is rotatably connected to the inside of the hopper through the five-slotted groove.
[0014] The beneficial effects of this utility model are as follows: Compared with traditional compound fertilizer granulation devices, the compound fertilizer particles obtained after granulation are of uneven size. Uneven particle size not only affects the appearance quality of the compound fertilizer product, but may also have adverse effects on its subsequent storage, transportation and fertilization effect. This device uses a first motor to drive the first granulation roller to rotate, which in turn drives the first pulley to rotate. The first pulley drives the transmission belt to rotate, which in turn drives the second pulley to rotate. The second pulley drives the first rotating rod to rotate, which in turn drives the cam to rotate. The rotation of the cam squeezes the connecting plate, and the connecting plate drives the slide rod to slide inside the fixed plate. The movement of the connecting plate squeezes and compresses the spring, causing the screen plate to vibrate and perform screening. This results in uniform compound fertilizer particle size, improves product quality and fertilization effect. Attached Figure Description
[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;
[0016] Figure 2 The diagram shown is a cross-sectional view of the present invention.
[0017] Figure 3 The diagram shown is a cross-sectional view of the granulation box, first motor, first granulation roller, first gear, second gear, second granulation roller, air pump, air blowing pipe and first pulley of this utility model.
[0018] Figure 4 The diagram shown is a cross-sectional view of the combined structure of the screening box, second pulley, first rotating rod, cam, fixed plate, spring, connecting plate, slide rod and screen plate of this utility model.
[0019] Figure 5 The diagram shown is a cross-sectional view of the combination of the feeding hopper, the third motor, the first crushing roller, the third gear, the fourth gear, and the second crushing roller of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Granulation box; 2. Screening box; 3. Discharge hopper; 4. Feed hopper; 501. First motor; 502. First granulation roller; 503. First gear; 504. Second gear; 505. Second granulation roller; 506. Air pump; 507. Air blowing pipe; 508. First pulley; 509. Transmission belt; 510. Second pulley; 511. First rotating rod; 512. Cam; 513. Fixed plate; 514. Spring; 515. Connecting plate; 516. Slide rod; 517. Screen plate; 601. Conveying pipe; 602. Feeding cylinder; 603. Feeding pipe; 604. Second motor; 605. Second rotating rod; 606. Spiral blade; 607. Third motor; 608. First crushing roller; 609. Third gear; 610. Fourth gear; 611. Second crushing roller. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-5This utility model provides an embodiment: a high-efficiency compound fertilizer granulation device, including a granulation box 1; it also includes a first motor 501 and a feeding device; a screening box 2 is provided at the lower end of the granulation box 1, a discharge hopper 3 is provided on one side of the screening box 2, a feeding hopper 4 is provided at the lower end of the screening box 2, a feeding component is provided on one side of the feeding hopper 4, a first motor 501 is provided on one side of the granulation box 1, a first granulation roller 502 is provided at the output end of the first motor 501, a first gear 503 is provided on the outer side of the first granulation roller 502, a second gear 504 is provided on one side of the first gear 503, the second gear 504 meshes with the first gear 503, a second granulation roller 505 is provided on the inner side of the second gear 504, an air pump 506 is provided on one side of the granulation box 1, and a feeding component is provided on one side of the air pump 506. A blowing pipe 507 is provided. A first pulley 508 is provided on the outer side of the first granulating roller 502. A transmission belt 509 is provided on one side of the first pulley 508. A second pulley 510 is provided on the inner side of the transmission belt 509. A first rotating rod 511 is provided on the inner side of the second pulley 510. A cam 512 is provided on the outer side of the first rotating rod 511. A fixed plate 513 is provided on the inner side of the screening box 2. A spring 514 is provided on the upper end of the fixed plate 513. A connecting plate 515 is provided on one side of the spring 514. A slide rod 516 is provided on one side of the connecting plate 515. A sieve plate 517 for screening particle size is provided on one side of the connecting plate 515. The first granulating roller 502 and the second granulating roller 505 have hollow inner structures. The first granulating roller 502 and the second granulating roller 505 are rotatably connected to the blowing pipe 507. On the outside of the air pipe 507, gas is blown into the first granulating roller 502 and the second granulating roller 505 through the air blowing pipe 507, thereby blowing out the particles in the granulation grooves on the first granulating roller 502 and the second granulating roller 505. A groove is provided on the granulation box 1, and the second granulating roller 505 is rotatably connected to the inside of the granulation box 1 through the groove. The groove on the granulation box 1 allows the second granulating roller 505 to be rotatably connected to the inside of the granulation box 1, thus limiting the movement of the second granulating roller 505. A groove is provided on the screening box 2, and the first rotating rod 511 is rotatably connected to the inside of the screening box 2 through the groove. The groove on the screening box 2 allows the first rotating rod 511 to be rotatably connected to the inside of the screening box 2, thus limiting the movement of the first rotating rod 511. A groove three is provided on the fixed plate 513. The slide rod 516 is slidably connected to the inner side of the fixed plate 513 through the groove three. The groove three on the fixed plate 513 allows the slide rod 516 to be slidably connected to the inner side of the fixed plate 513, thereby providing a guiding and limiting effect for the slide rod 516. By starting the first motor 501, the first motor 501 drives the first granulating roller 502 to rotate. The first granulating roller 502 drives the first gear 503 to rotate. The first gear 503 drives the second gear 504 to rotate. The second gear 504 drives the second granulating roller 505 to rotate. The first granulating roller 502 and the second granulating roller 505 rotate inward simultaneously, pouring the compound fertilizer raw material into the granulation box 1. Granulation is carried out by the cooperation of the first granulating roller 502 and the second granulating roller 505.By activating the air pump 506, air is blown into the first granulating roller 502 and the second granulating roller 505 through the air blowing pipe 507, discharging the particles from the granulation grooves on the first granulating roller 502 and the second granulating roller 505. The discharged particles fall onto the sieve plate 517. The first granulating roller 502 drives the first pulley 508 to rotate, which in turn drives the transmission belt 509 to rotate. The transmission belt 509 drives the second pulley 510 to rotate, which in turn drives the first rotating rod 511 to rotate. The rotation of the first rotating rod 511 drives the cam 512 to rotate, and the rotation of the cam 512 compresses the connecting plate 515. The connecting plate 515 drives the slide rod 516 to slide inside the fixed plate 513. The movement of the connecting plate 515 compresses the spring 514, thereby causing the sieve plate 517 to vibrate and perform screening. Qualified particles are discharged through the discharge hopper 3, while smaller particles pass through the sieve plate 517 and fall into the feed hopper 4, where they are crushed and then transported to the granulation box 1 for re-granulation. ,
[0023] Please see Figures 2-5 In this embodiment, the feeding assembly includes a conveying pipe 601, a conveying pipe 601 on one side of the discharge hopper 4, a feeding cylinder 602 on one side of the conveying pipe 601, a feeding pipe 603 on one side of the feeding cylinder 602, a second motor 604 at the upper end of the feeding cylinder 602, a second rotating rod 605 at the output end of the second motor 604, and a spiral blade 606 for lifting materials on the outer side of the second rotating rod 605. A third motor 607 on one side of the discharge hopper 4, a first crushing roller 608 for crushing materials at the output end of the third motor 607, a third gear 609 on the outer side of the first crushing roller 608, and a fourth tooth on one side of the third gear 609. The wheel 610, the fourth gear 610 meshes with the third gear 609, the inner side of the fourth gear 610 is provided with a second crushing roller 611, the feeding cylinder 602 is provided with a groove four, the spiral blade 606 is rotatably connected to the inner side of the feeding cylinder 602 through the groove four, the groove four on the feeding cylinder 602 makes the spiral blade 606 rotatably connected to the inner side of the feeding cylinder 602, thereby limiting the spiral blade 606. The hopper 4 is provided with a groove five, the second crushing roller 611 is rotatably connected to the inner side of the hopper 4 through the groove five, the groove five on the hopper 4 makes the second crushing roller 611 rotatably connected to the inner side of the hopper 4, thereby limiting the second crushing roller 611.
[0024] During operation, starting the first motor 501 drives the first granulation roller 502 to rotate, which in turn drives the first gear 503 to rotate. The first gear 503 then drives the second gear 504 to rotate, which in turn drives the second granulation roller 505 to rotate. Both the first and second granulation rollers rotate inwards simultaneously, pouring the compound fertilizer raw materials into the granulation box 1. Granulation is then performed through the cooperation of the first and second granulation rollers 502 and 505. Starting the air pump 506... Pump 506 blows air into the first granulating roller 502 and the second granulating roller 505 through air pipe 507, discharging the particles from the granulation grooves on the first granulating roller 502 and the second granulating roller 505. The discharged particles fall onto sieve plate 517. The rotation of the first granulating roller 502 drives the first pulley 508 to rotate, which in turn drives the transmission belt 509 to rotate. The transmission belt 509 drives the second pulley 510 to rotate, which in turn drives the first rotating rod 511 to rotate. The rotation of the first rotating rod 511 then drives the cam 512 to rotate. The cam 512 rotates and presses against the connecting plate 515. The connecting plate 515 drives the slide rod 516 to slide inside the fixed plate 513. The movement of the connecting plate 515 compresses the spring 514, thereby causing the screen plate 517 to vibrate and perform screening. Qualified particles are discharged through the discharge hopper 3, while smaller particles pass through the screen plate 517 and fall into the feed hopper 4. The third motor 607 is started, which drives the first crushing roller 608 to rotate. The first crushing roller 608 drives the third gear 609 to rotate, and the third gear 609 drives the fourth... Gear 610 rotates, and the fourth gear 610 drives the second crushing roller 611 to rotate, thereby crushing the particles. Then, the particles are discharged into the feeding cylinder 602 through the conveying pipe 601. The second motor 604 is started, and the second motor 604 drives the second rotating rod 605 to rotate. The second rotating rod 605 drives the spiral blade 606 to rotate, thereby causing the crushed raw material to rise. When it rises to the feeding pipe 603, it is discharged into the granulation box 1 through the feeding pipe 603. It is then granulated again by the first granulation roller 502 and the second granulation roller 505, and the cycle is repeated.
[0025] Through the above steps, by starting the first motor 501, the first motor 501 drives the first granulating roller 502 to rotate, the first granulating roller 502 drives the first gear 503 to rotate, the first gear 503 drives the second gear 504 to rotate, and the second gear 504 drives the second granulating roller 505 to rotate. The first granulating roller 502 and the second granulating roller 505 rotate inward simultaneously, pouring the compound fertilizer raw material into the granulation box 1. Granulation is performed by the cooperation of the first granulating roller 502 and the second granulating roller 505. By starting the air pump 506, the air pump 506 blows air into the first granulating roller 502 and the second granulating roller 505 through the air blowing pipe 507, discharging the granules from the granulation grooves on the first granulating roller 502 and the second granulating roller 505. The particles fall onto the screen plate 517. The first granulation roller 502 rotates, driving the first pulley 508 to rotate. The first pulley 508 drives the transmission belt 509 to rotate, which in turn drives the second pulley 510 to rotate. The second pulley 510 drives the first rotating rod 511 to rotate, which in turn drives the cam 512 to rotate. The cam 512 rotates and squeezes the connecting plate 515. The connecting plate 515 drives the slide rod 516 to slide inside the fixed plate 513. The movement of the connecting plate 515 squeezes and compresses the spring 514, thereby causing the screen plate 517 to vibrate and perform screening. Qualified particles are discharged through the discharge hopper 3, while smaller particles pass through the screen plate 517 and fall into the feed hopper 4. After being crushed, they are transported to the granulation box 1 for re-granulation.
Claims
1. A high-efficiency compound fertilizer granulation device, comprising a granulation box (1); characterized in that: It also includes a first motor (501) and a feeding device; a screening box (2) is provided at the lower end of the granulation box (1), a discharge hopper (3) is provided on one side of the screening box (2), a feeding hopper (4) is provided at the lower end of the screening box (2), a feeding assembly is provided on one side of the feeding hopper (4), a first motor (501) is provided on one side of the granulation box (1), a first granulation roller (502) is provided at the output end of the first motor (501), a first gear (503) is provided on the outer side of the first granulation roller (502), a second gear (504) is provided on one side of the first gear (503), the second gear (504) meshes with the first gear (503), a second granulation roller (505) is provided on the inner side of the second gear (504), and an air pump (506) is provided on one side of the granulation box (1). A blowing pipe (507) is provided on one side of the pump (506), a first pulley (508) is provided on the outside of the first granulation roller (502), a transmission belt (509) is provided on one side of the first pulley (508), a second pulley (510) is provided on the inside of the transmission belt (509), a first rotating rod (511) is provided on the inside of the second pulley (510), a cam (512) is provided on the outside of the first rotating rod (511), a fixed plate (513) is provided on the inside of the screening box (2), a spring (514) is provided on the upper end of the fixed plate (513), a connecting plate (515) is provided on one side of the spring (514), a slide rod (516) is provided on one side of the connecting plate (515), and a sieve plate (517) for screening particle size is provided on one side of the connecting plate (515).
2. The high-efficiency compound fertilizer granulation device according to claim 1, characterized in that: The first granulating roller (502) and the second granulating roller (505) have hollow inner structures, and the first granulating roller (502) and the second granulating roller (505) are rotatably connected to the outside of the air blowing pipe (507).
3. The high-efficiency compound fertilizer granulation device according to claim 1, characterized in that: A groove is provided on the granulation box (1), and the second granulation roller (505) is rotatably connected to the inside of the granulation box (1) through the groove.
4. The high-efficiency compound fertilizer granulation device according to claim 1, characterized in that: The screening box (2) has a second slot, and the first rotating rod (511) is rotatably connected to the inside of the screening box (2) through the second slot.
5. The high-efficiency compound fertilizer granulation device according to claim 1, characterized in that: The fixing plate (513) has a groove three, and the slide rod (516) is slidably connected to the inner side of the fixing plate (513) through the groove three.
6. The high-efficiency compound fertilizer granulation device according to claim 1, characterized in that: The feeding assembly includes a conveying pipe (601), a conveying pipe (601) is provided on one side of the hopper (4), a feeding cylinder (602) is provided on one side of the conveying pipe (601), a feeding pipe (603) is provided on one side of the feeding cylinder (602), a second motor (604) is provided at the upper end of the feeding cylinder (602), a second rotating rod (605) is provided at the output end of the second motor (604), a spiral blade (606) for lifting materials is provided on the outside of the second rotating rod (605), a third motor (607) is provided on one side of the hopper (4), a first crushing roller (608) for crushing materials is provided at the output end of the third motor (607), a third gear (609) is provided on the outside of the first crushing roller (608), a fourth gear (610) is provided on one side of the third gear (609), the fourth gear (610) meshes with the third gear (609), and a second crushing roller (611) is provided on the inside of the fourth gear (610).
7. The high-efficiency compound fertilizer granulation device according to claim 6, characterized in that: The feeding cylinder (602) has a slot four, and the spiral blade (606) is rotatably connected to the inside of the feeding cylinder (602) through the slot four.
8. The high-efficiency compound fertilizer granulation device according to claim 6, characterized in that: The feeding hopper (4) has a five-slotted groove, and the second crushing roller (611) is rotatably connected to the inside of the feeding hopper (4) through the five-slotted groove.