Drum granulator to improve particle uniformity

Abstract

The present invention provides a rotary drum granulator for improving the uniformity of particles, which includes a bearing seat, a rotating drum, a first nozzle, a particle leveling mechanism, and a driving mechanism. A fixed frame for adjusting the angle of the bearing seat is provided at the lower part of the bearing seat, the rotating drum is rotatably arranged on the bearing seat, and organic fertilizer raw materials are formed into particles by the rotation of the rotating drum. The first nozzle is arranged in the middle of the rotating drum to humidify the organic fertilizer raw materials. The particle leveling mechanism is fixedly arranged inside the rotating drum to perform particle leveling treatment on the particles formed by the rotation of the rotating drum. The driving mechanism is fixedly arranged on the bearing seat to drive the rotating drum to rotate. The rotary drum granulator for improving the uniformity of particles described in the present invention can adjust the angle of the rotating drum to improve the uniformity of granulation by providing a fixed frame and an adjusting mechanism; the organic fertilizer raw materials are uniformly humidified and treated by providing the first nozzle and the particle leveling mechanism to ensure the uniformity of the particles; and powder and uniform particles are effectively filtered out by providing a primary screen and a secondary screen.

Description

Technical Field

[0001] The invention relates to the technical field of granulators, in particular to a rotary drum granulator for improving particle uniformity. Background Art

[0002] With the modernization of agricultural production, higher requirements are placed on the processing technology of organic fertilizers. When processing organic fertilizer raw materials, traditional granulators often have problems such as uneven particle size and low production efficiency. In order to improve the production efficiency of organic fertilizers, a variety of granulator designs are used in the prior art, but these designs still have the problem of single function in practical applications. At present, the most commonly used in the organic fertilizer granulation process are rotary drum granulators and disc granulators. The principle of both granulators is to humidify the organic fertilizer and then make the organic fertilizer stick together to form round particles by rolling.

[0003] At present, some rotary drum granulators generally use a motor to drive the rotating drum. The rotating drum drives the raw materials to roll and rotate during the rotation process, thereby generating extrusion pressure between the raw material particles and agglomerating them into balls. Then, steam or water mist is appropriately introduced into the material layer as needed. The water mist can increase the temperature of the raw materials and is conducive to the formation of particles. These particles become cores. The surrounding powder will adhere to these cores during rolling and gradually form larger particles.

[0004] Therefore, when the current drum granulator is granulating, if the feed speed is too fast, the material will shorten its residence time in the drum and it will be difficult to form stable granules. If the feed speed is too slow, it may cause excessive accumulation of materials, affecting the uniformity of the granules. In addition, when spraying and humidifying the raw materials in the rotary cylinder, the sprayer needs to be manually controlled, which is easy to cause uneven humidification and also affects the uniformity of granulation. After the granulation is completed, it is directly discharged from the rotary cylinder, producing granules of different sizes, and even powder that has not formed into granules, thereby affecting the granulation quality. Summary of the invention

[0005] The purpose of the present invention is to provide a rotary drum granulator with improved particle uniformity, so as to solve the problems of uneven particle size and low production efficiency during granulation in the rotary drum granulator in the prior art.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0007] A rotary drum granulator for improving particle uniformity, comprising:

[0008] A bearing seat, a fixing frame for adjusting the angle of the bearing seat is arranged at the lower part of the bearing seat; a rotating drum is rotatably arranged on the bearing seat, and the organic fertilizer raw material is formed into particles through the rotation of the rotating drum; a first nozzle is arranged in the middle of the rotating drum to humidify the organic fertilizer raw material; a particle leveling mechanism is fixedly arranged inside the rotating drum to perform particle leveling on the particles formed by the rotation of the rotating drum; and a driving mechanism is fixedly arranged on the bearing seat to drive the rotating drum to rotate.

[0009] By adopting the above technical solution, the fixed frame can adjust the angle of the bearing seat and can adjust the inclination angle of the drum according to the granulation requirements, so as to control the flow speed and residence time of the raw materials in the drum and improve the uniformity of the particles; the rotation of the drum drives the raw materials to roll and rotate to form particles, and the raw materials are humidified through the first nozzle to improve the forming effect of the particles; the particle leveling mechanism further processes the formed particles to ensure the uniformity of the particles; the driving mechanism ensures the stable rotation of the drum and improves the granulation efficiency.

[0010] Furthermore, the particle leveling mechanism includes a primary screen fixedly arranged in the drum for filtering powder in the particles, a secondary screen located at the tail of the primary screen for filtering uniform particles in the particles, and a pressure roller for crushing large particles in the particles is attached to the inner wall of the secondary screen.

[0011] By adopting the above technical solution, the setting of the primary sieve and the secondary sieve can effectively separate powder and uniform particles, and the setting of the pressing roller can further crush large particles and improve the uniformity of the particles.

[0012] Furthermore, the first-level screen is in a truncated cone shape, and the large-diameter end of the first-level screen is in contact with the inner wall of the rotating drum. A connecting tube is provided between the first-level screen and the second-level screen for particles to pass through, and one end of the connecting tube is fixedly connected to the small-diameter end of the first-level screen.

[0013] By adopting the above technical solution, the arrangement of the truncated cone-shaped primary screen and the connecting cylinder can effectively guide the flow of particles and improve the granulation efficiency.

[0014] Furthermore, a guide bin for inserting the connecting cylinder is fixedly provided at one end of the secondary screen, the guide bin is truncated cone-shaped, and the end with a larger diameter is in contact with the inner wall of the rotating drum, and the rotating drum between the guide bin and the primary screen is a secondary granulation area, and the particles formed in the secondary granulation area flow into the guide bin.

[0015] By adopting the above technical solution, the setting of the guide bin can guide the particles formed in the secondary granulation area to flow in, thereby improving the uniformity and efficiency of granulation.

[0016] Furthermore, a second nozzle for humidification is arranged on the outer wall of the connecting tube, and a coil connected to the second nozzle is surrounded by the outer wall of the connecting tube.

[0017] By adopting the above technical solution, the arrangement of the second nozzle and the coil can further humidify the particles and improve the forming effect of the particles.

[0018] Furthermore, a feed hood for feeding is provided at one end of the rotating drum, the interior of the rotating drum between the primary screen and the feed hood is a primary granulation area, and the first nozzle is located at the primary granulation area; a discharge hood for discharging is provided at the other end of the rotating drum, the pressure roller is rotatably connected to the discharge hood, and a blocking ring is fixedly provided at the tail of the secondary screen to prevent large particles from flowing out.

[0019] By adopting the above technical solution, the setting of the feed cover and the discharge cover can effectively control the feeding and discharging of materials, prevent material accumulation and large particles from flowing out, and ensure the granulation quality.

[0020] Furthermore, a water pipe extending into the connecting tube is inserted into the feed cover, a connecting pipe connected to the water pipe is provided on the coil, and a rotating joint for rotating the connecting pipe and the coil is provided between the connecting pipe and the water pipe.

[0021] By adopting the above technical solution, the arrangement of the water pipe and the rotary joint can ensure a stable water supply to the nozzle and improve the uniformity and stability of humidification.

[0022] Furthermore, the rotating drum is formed by splicing at least two rotating drums, and the connection between the two rotating drums is buckled together by a locking piece.

[0023] By adopting the above technical solution, the spliced ​​drum design can adjust the drum length as needed, improve the adaptability and flexibility of the granulator, and facilitate the installation of the granulation mechanism.

[0024] Furthermore, the driving mechanism includes a gear ring and a circular rail fixedly mounted on the rotating drum, a motor driving the gear ring to rotate, and a guide wheel abutting against the circular rail. A gear is fixedly mounted on the driving shaft of the motor, and the gear is meshed with the gear ring.

[0025] By adopting the above technical solution, the meshing transmission of the ring gear and the gear can provide a stable driving force to ensure the stable rotation of the drum.

[0026] Furthermore, one end of the fixing frame is rotatably connected to the bearing seat, and a hydraulic cylinder for adjusting the angle is provided between the other end of the fixing frame and the bearing seat.

[0027] By adopting the above technical solution, the setting of the hydraulic cylinder can conveniently adjust the inclination angle of the drum, thereby improving the operational flexibility of the granulator.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The rotary drum granulator for improving particle uniformity of the present invention can adjust the angle of the rotary drum by arranging a fixing frame and an adjusting mechanism, adapt to the characteristics of different materials, and improve the uniformity of granulation; by arranging a first nozzle and a particle leveling mechanism, the organic fertilizer raw material can be uniformly humidified and processed to ensure the uniformity of particles; by arranging a primary screen and a secondary screen, powder and uniform particles can be effectively filtered out, and large particles can be crushed by a pressing roller to further improve the uniformity of particles.

[0030] In addition, by setting a truncated cone-shaped primary screen and a connecting cylinder, the particles can be effectively guided through the screen for preliminary screening and processing; by setting a diversion bin and a secondary granulation area, the particles can be effectively guided for secondary granulation to further improve the uniformity of the particles; by setting a second nozzle and a coil, the particles can be humidified for a second time to meet the humidity requirements of different materials and further improve the granulation quality.

[0031] In addition, by setting up water pipes and rotary joints, it can be ensured that the humidification system can work stably during the rotation of the drum, further improving the uniformity of granulation; by setting up a spliced ​​drum, the length of the drum can be adjusted according to production needs, improving the flexibility and adaptability of the equipment; by setting up the meshing drive mode of the ring gear and the gear, it can ensure the stable rotation of the drum, and improve the efficiency and uniformity of granulation; by setting the hydraulic cylinder adjustment angle, the angle of the drum can be more accurately controlled, further improving the uniformity of granulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0033] In the attached picture:

[0034] Figure 1 It is a schematic diagram of the overall structure of a rotary drum granulator for improving particle uniformity according to an embodiment of the present invention;

[0035] Figure 2 It is an exploded schematic diagram of the rotating drum and the particle leveling mechanism according to an embodiment of the present invention;

[0036] Figure 3 It is a schematic diagram of a particle leveling mechanism according to an embodiment of the present invention;

[0037] Figure 4 It is a cross-sectional view of the rotating drum and the particle leveling mechanism according to an embodiment of the present invention;

[0038] Figure 5 It is a partial cross-sectional view of the secondary granulation zone according to an embodiment of the present invention;

[0039] Figure 6 It is a partial cross-sectional view of a feed cover and a discharge cover according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the decomposition of the primary screen and the coil according to an embodiment of the present invention;

[0041] Figure 8 A cross-sectional view of a rotary joint according to an embodiment of the present invention;

[0042] Fig. 9 An exploded sectional view of a rotary joint according to an embodiment of the present invention;

[0043] Fig.10 It is a schematic diagram of the decomposition of two rotating drums according to an embodiment of the present invention;

[0044] Fig.11 It is a partial schematic diagram of the driving mechanism described in an embodiment of the present invention.

[0045] Description of reference numerals:

[0046] 1. Bearing seat; 2. Fixed frame;

[0047] 3. Rotating drum; 301. Primary granulation area; 302. Secondary granulation area; 303. Locking member; 304. Groove; 305. Protruding ring;

[0048] 4. The first nozzle;

[0049] 5. Particle leveling mechanism; 501. Primary screen; 502. Secondary screen; 503. Pressing roller; 504. Connecting cylinder; 505. Diversion chamber; 506. Blocking ring; 507. Extension shaft;

[0050] 6. Driving mechanism; 601. Gear ring; 602. Circular rail; 603. Motor; 604. Guide wheel; 605. Gear;

[0051] 7. Second nozzle; 8. Coil; 9. Feed cover; 10. Discharge cover; 11. Water pipe; 12. Connecting pipe;

[0052] 13. Rotary joint; 1301. Fixed part; 1302. Locking part; 1303. Bearing; 1304. Moving ring; 1305. Spring; 1306. Round sleeve; 1307. Stationary ring;

[0053] 14. Hydraulic cylinder; 15. Channel. DETAILED DESCRIPTION

[0054] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0055] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0056] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0057] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0058] This embodiment relates to a rotary drum granulator for improving particle uniformity. The overall structure is as follows: Figure 1 and Figure 2 As shown, it includes a supporting seat 1, a rotating drum 3, a first nozzle 4, a particle leveling mechanism 5, and a driving mechanism 6.

[0059] Among them, a fixing frame 2 for adjusting the angle of the supporting seat 1 is arranged at the lower part, the rotating drum 3 is rotatably arranged on the supporting seat 1, the organic fertilizer raw material is formed into particles by the rotation of the rotating drum 3, the first nozzle 4 is arranged in the middle of the rotating drum 3, and the organic fertilizer raw material is humidified. The particle leveling mechanism 5 is fixedly arranged inside the rotating drum 3, and the particles formed by the rotation of the rotating drum 3 are subjected to particle leveling. The driving mechanism 6 is fixedly arranged on the supporting seat 1 to drive the rotating drum 3 to rotate.

[0060] It is worth mentioning that the fixing frame 2 is horizontally fixed on the ground or the base, and the bearing seat 1 is adjusted on the fixing frame 2 to ensure that the drum 3 can be adjusted to an inclined state or a horizontal state, the purpose of which is to facilitate the flow of the organic fertilizer raw material from the inlet to the outlet. The first nozzle 4 is located on the central axis of the drum 3. The first nozzle 4 can humidify the organic fertilizer raw material, so that the organic fertilizer raw material can be adhered into particles, and the particles are rounded in coordination with the rolling of the drum 3. The driving mechanism 6 can drive the drum 3 to rotate the drum 3, and can also support the drum 3 on the bearing seat 1. The granulation mechanism 5 is also located on the central axis of the drum 3. When the organic fertilizer raw material is granulated by the rotation of the drum 3, it will pass through the granulation mechanism 5. The granulation mechanism 5 will screen out the powder in the granulated particles and re-granulate them, and the large particles in the granulated particles will be crushed to form uniform particles, thereby improving the uniformity of the particles.

[0061] Based on the above overall introduction, an exemplary structure of the rotary drum granulator for improving particle uniformity in this embodiment is as follows: Figure 3 As shown, the particle leveling mechanism 5 includes a primary screen 501 fixedly arranged in the drum 3 for filtering powder in the particles, a secondary screen 502 located at the tail of the primary screen 501 for filtering uniform particles in the particles, and a pressing roller 503 is attached to the inner wall of the secondary screen 502 for crushing large particles in the particles.

[0062] It should be noted that the mesh number of the first-level screen 501 is relatively large, and only the ungranulated powder raw materials can be filtered out and dropped onto the drum 3. The mesh number of the second-level screen 502 is relatively small, so that particles of appropriate size can be filtered out and dropped onto the drum 3, while large particles of organic fertilizer remain in the earphone screen. Since the pressing roller 503 and the second-level screen 502 are fitted together, when the second-level screen 502 rotates with the drum 3, the pressing roller 503 also rotates, thereby crushing the large particles, and then dropping them from the second-level screen 502 onto the drum 3. The drum 3 is in a rotating state, so the crushed particles can be shaken evenly and the roundness of the particles can be improved.

[0063] In order to ensure that the particles can enter the particle leveling mechanism 5, as preferred, Figure 4As shown, the primary screen 501 of this embodiment is in the shape of a truncated cone, and one end of the primary screen 501 with a large diameter is fitted with the inner wall of the drum 3. A connecting cylinder 504 for particles to pass through is provided between the primary screen 501 and the secondary screen 502, and one end of the connecting cylinder 504 is fixedly connected with one end of the primary screen 501 with a small diameter. Specifically, after the drum 3 is granulated, since the drum 3 is in an inclined state and one end of the primary screen 501 is fitted with the drum 3, the particles can enter the primary screen 501, and the purpose of setting the primary screen 501 in the shape of a truncated cone is to ensure that the powder can fall into the drum 3 after being sieved out for re-granulation, and the setting of the connecting cylinder 504 is to ensure that the particles in the primary screen 501 can flow from the connecting cylinder 504 into the secondary screen 502, that is, the connecting cylinder 504 is used to connect the primary screen 501 and the secondary screen 502.

[0064] In order to ensure that the re-granulated particles can flow into the secondary screen 502, as preferred, Figure 5 As shown, a guide bin 505 for inserting a connecting tube 504 is fixedly provided at one end of the secondary screen 502 of this embodiment, and the guide bin 505 is truncated, and one end with a large diameter is in contact with the inner wall of the rotating drum 3. The rotating drum 3 between the guide bin 505 and the primary screen 501 is the secondary granulation zone 302, and the particles formed in the secondary granulation zone 302 flow into the guide bin 505. The outer wall of the connecting tube 504 is arranged with a second nozzle 7 for humidifying the secondary granulation zone 302, and the outer wall of the connecting tube 504 is arranged with a coil 8 connected to the second nozzle 7.

[0065] Specifically, the shape of the guide bin 505 is the same as that of the primary screen 501, and the connecting tube 504 and the secondary screen 502 are both cylindrical. When the powder sifted out by the primary screen 501 falls into the rotating drum 3, this is the secondary granulation area 302, that is, the powder that failed to be granulated successfully for the first time is granulated again. Since the guide bin 505 and the inner wall of the rotating drum 3 fit together, after the granulation is completed again, the particles will flow from the guide bin 505 into the secondary screen 502, and merge with the particles flowing into the secondary screen 502 from the connecting tube 504. In order to ensure the success of the granulation again, a second nozzle 7 is also arranged in the secondary granulation area 302. After re-humidification and rotation granulation, the granulation rate is improved. Since the nozzles are arranged around the connecting tube 504, the coil 8 is fixed on the connecting tube 504 and can be used to connect the second nozzle 7.

[0066] In order to facilitate feeding and discharging, it is preferred that Figure 6 and Figure 3As shown, in this embodiment, a feed cover 9 for feeding is provided at one end of the drum 3, a primary granulation area 301 is located in the drum 3 between the primary screen 501 and the feed cover 9, the first nozzle 4 is located at the primary granulation area 301, a discharge cover 10 for discharging is provided at the other end of the drum 3, a pressure roller 503 is rotatably connected to the discharge cover 10, and a blocking ring 506 is fixedly provided at the tail of the secondary screen 502 to prevent large particles from flowing out.

[0067] Specifically, the feed cover 9 is fixedly mounted on the bearing seat 1, and the feed cover 9 is rotatably connected to the drum 3. A space is left between the feed cover 9 and the primary screen 501 at the drum 3, which is the primary granulation area 301. A channel 15 is provided on the feed cover 9, and the channel 15 extends into the primary granulation area 301. This arrangement ensures that the organic fertilizer raw material can flow from the feed cover 9 into the primary granulation area 301 for granulation, and the granules are formed by the humidification of the first nozzle 4 and the rolling of the drum 3. The granules formed in the primary granulation area 301 may contain powder or relatively large particles. Large particles, therefore, after the above steps, through the operation of the primary screen 501 and the secondary screen 502, the uniformity of the particles is improved, the discharge cover 10 and the feed cover 9 are relatively arranged, and are also fixed on the supporting seat 1, and are rotatably connected to the rotating drum 3, and the pressure roller 503 is rotatably connected with an extension shaft 507, and the extension shaft 507 is fixed on the discharge cover 10, so that the pressure roller 503 can be maintained at a preset position in the secondary screen 502. In order to prevent large particles from flowing out of the secondary screen 502, a blocking ring 506 is welded at the tail end of the secondary screen 502.

[0068] In order to realize water supply of the first nozzle 4 and the second nozzle 7, as preferably, Figure 7 and Figure 8 As shown, in this embodiment, a water pipe 11 extending into the connecting tube 504 is inserted on the feed cover 9, a connecting pipe 12 connected to the water pipe 11 is provided on the coil 8, and a rotating joint 13 for rotating the connecting pipe 12 and the coil 8 is provided between the connecting pipe 12 and the water pipe 11.

[0069] Specifically, the water pipe 11 passes through the feed hood 9, and the first nozzle 4 is installed on the water pipe 11 to realize water supply of the first nozzle 4. The end of the water pipe 11 is fixedly connected to the supporting seat 1, so as to improve the strength of the water pipe 11. The connecting pipe 12 passes through the connecting cylinder 504 and is connected to the coil 8. Since the connecting pipe 12 will rotate with the connecting cylinder 504, a rotating joint 13 is added at the connection between the water pipe 11 and the connecting pipe 12. The rotating joint 13 can ensure water supply to the second nozzle 7. The rotating joint 13 includes a fixing part 1301 welded to the water pipe 11 and a locking part 1302 connected to the fixing part 1301. The connecting pipe 12 is inserted in the locking part 1302 and contacts with the fixing part 1301. The connecting pipe 12 and the locking part 1302 are connected by a bearing 1303, that is, the connecting pipe 12 can rotate in the locking part 1302.

[0070] In addition, if Fig. 9 As shown, in order to ensure the sealing between the connecting pipe 12, the fixing part 1301 and the locking part 1302, a sealing member is sleeved on the outside of the connecting pipe 12, and the sealing member is composed of a dynamic ring 1304, a spring 1305 and a round sleeve 1306. The dynamic ring 1304 and the spring 1305 are arranged in the round sleeve 1306. There are two dynamic rings 1304, which are respectively located at the two ends of the spring 1305. When the connecting pipe 12 and the fixing part 1301 are in contact, one of the dynamic rings 1304 also abuts against the fixing part 1301, and a static ring 1307 is arranged in the locking part 1302, and the other dynamic ring 1304 abuts against the static ring 1307. Due to the arrangement of the spring 1305, when the fixing part 1301 and the locking part 1302 are installed, the two dynamic rings 1304 will squeeze the spring 1305 to generate compression. Therefore, the two dynamic rings 1304 can always maintain abutment with the fixing part 1301 and the static ring 1307, thereby realizing dynamic sealing.

[0071] In order to facilitate the installation of the particle leveling mechanism 5 and the adjustment of the angle of the support seat 1, it is preferred that Fig.10 and Figure 1 As shown, the rotating drum 3 of this embodiment is composed of at least two spliced ​​drums, and the connection of the two rotating drums 3 is buckled together by a locking member 303. One end of the fixing frame 2 is rotatably connected to the bearing seat 1, and a hydraulic cylinder 14 for adjusting the angle is arranged between the other end of the fixing frame 2 and the bearing seat 1.

[0072] Specifically, the rotating drum 3 can be set in multiple groups according to actual conditions, and can be inserted between two adjacent rotating drums 3. One of the rotating drums 3 is provided with a groove 304, and the other rotating drum 3 is provided with a convex ring 305. The convex ring 305 is inserted in the groove 304, and then the two rotating drums 3 can be spliced ​​together with the buckle. The locking member 303 can adopt a buckle. Such a setting can improve the connection strength. The buckle is a common locking member 303 in the prior art, which is not repeated here. One end of the bearing seat 1 for mounting the discharge cover 10 is connected to the rotating shaft of the fixed frame 2, and the hydraulic cylinder 14 is located at one end of the bearing seat 1 for mounting the feed cover 9. When the hydraulic cylinder 14 lifts the bearing seat 1 in this way, one end of the feed cover 9 is at a high place, and a section of the discharge cover 10 is at a low place, ensuring that the organic fertilizer can be discharged from the discharge cover 10 after being processed by the granulation mechanism 5 from the feed cover 9.

[0073] In order to ensure the rotation of the drum 3, as a preferred embodiment, Fig.11As shown, in this embodiment, the driving mechanism 6 includes a gear ring 601 and a circular rail 602 fixedly mounted on the rotating drum 3, a motor 603 driving the gear ring 601 to rotate, and a guide wheel 604 abutting against the circular rail 602. A gear 605 is fixedly arranged on the driving shaft of the motor 603, and the gear 605 is meshed with the gear ring 601. It should be noted that the motor 603 is fixedly mounted on the bearing seat 1, the gear ring 601 and the circular rail 602 are fixedly mounted on the rotating drum 3, the guide wheel 604 is rotatably mounted on the bearing seat 1, and the circular rail 602 is placed on the guide wheel 604. When the rotating drum 3 rotates, the guide wheel 604 and the circular rail 602 are abutted, so they can follow the rotation, and the gear 605 on the motor 603 is meshed with the gear ring 601. When the motor 603 rotates, the gear ring 601 can be driven to rotate, thereby realizing the rotation of the rotating drum 3. In order to prevent the rotating drum 3 from sliding, two guide wheels 604 are also abutted on the two end faces of the circular rail 602.

[0074] The rotary drum granulator for improving particle uniformity in this embodiment can adjust the angle of the rotary drum 3 by providing a fixed frame 2 and an adjusting mechanism to adapt to the characteristics of different materials and improve the uniformity of granulation; by providing a first nozzle 4 and a particle leveling mechanism 5, the organic fertilizer raw material can be uniformly humidified and processed to ensure the uniformity of the particles; by providing a primary screen 501 and a secondary screen 502, powder and uniform particles can be effectively filtered out, and large particles can be crushed by a pressing roller 503 to further improve the uniformity of the particles.

[0075] In addition, by providing a truncated cone-shaped primary screen 501 and a connecting tube 504, the particles can be effectively guided through the screen for preliminary screening and processing; by providing a guide bin 505 and a secondary granulation area 302, the particles can be effectively guided for secondary granulation to further improve the uniformity of the particles; by providing a second nozzle 7 and a coil 8, the particles can be humidified for a second time to meet the humidity requirements of different materials and further improve the granulation quality.

[0076] In addition, by providing the water pipe 11 and the rotary joint 13, it can be ensured that the humidification system can work stably during the rotation of the drum 3, thereby further improving the uniformity of granulation; by providing a splicable drum 3, the length of the drum 3 can be adjusted according to production needs, thereby improving the flexibility and adaptability of the equipment; by providing the meshing drive mode of the ring gear 601 and the gear 605, it can be ensured that the drum 3 rotates stably, thereby improving the efficiency and uniformity of granulation; by providing the hydraulic cylinder 14 to adjust the angle, the angle of the drum 3 can be more accurately controlled, thereby further improving the uniformity of granulation.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary drum granulator for improving particle uniformity, characterized in that: include: A bearing seat (1), wherein a fixing frame (2) for adjusting the angle of the bearing seat (1) is provided at the lower part thereof; A rotating drum (3) is rotatably disposed on the bearing seat (1), and the organic fertilizer raw material is formed into particles through the rotation of the rotating drum (3); A first nozzle (4) is arranged in the middle of the drum (3) to humidify the organic fertilizer raw material; A particle leveling mechanism (5) is fixedly arranged inside the rotating drum (3) and performs particle leveling on particles formed by the rotation of the rotating drum (3); A driving mechanism (6) is fixedly arranged on the bearing seat (1) and drives the rotating drum (3) to rotate; The particle leveling mechanism (5) comprises a primary screen (501) fixedly arranged in the drum (3) for filtering powder in the particles, and a secondary screen (502) located at the tail of the primary screen (501) for filtering uniform particles in the particles; A connecting cylinder (504) for particles to pass through is provided between the primary screen (501) and the secondary screen (502); a guide bin (505) for the connecting cylinder (504) to be inserted is fixedly provided at one end of the secondary screen (502); and the interior of the rotating cylinder (3) between the guide bin (505) and the primary screen (501) is a secondary granulation zone (302); The outer wall of the connecting cylinder (504) is provided with a second nozzle (7) for humidification, and the outer wall of the connecting cylinder (504) is surrounded by a coil (8) connected to the second nozzle (7); the first-level screen (501) is provided with a water pipe (11) extending into the connecting cylinder (504); the coil (8) is provided with a connecting pipe (12) connected to the water pipe (11); and a rotating joint (13) is provided between the connecting pipe (12) and the water pipe (11) for rotating the connecting pipe (12) and the coil (8).

2. The rotary drum granulator for improving particle uniformity according to claim 1, characterized in that: The inner wall of the secondary screen (502) is fitted with a pressure roller (503) for crushing large particles.

3. The rotary drum granulator for improving particle uniformity according to claim 1, characterized in that: The primary screen (501) is in the shape of a truncated cone, the large diameter end of the primary screen (501) is in contact with the inner wall of the rotating drum (3), and one end of the connecting drum (504) is fixedly connected to the small diameter end of the primary screen (501).

4. The rotary drum granulator for improving particle uniformity according to claim 1, characterized in that: The guide bin (505) is in the shape of a truncated cone, and one end with a larger diameter is in contact with the inner wall of the rotating drum (3), and the particles formed in the secondary granulation zone (302) flow into the guide bin (505).

5. The rotary drum granulator for improving particle uniformity according to claim 1, characterized in that: A feed hood (9) for feeding is provided at one end of the rotating drum (3); the interior of the rotating drum (3) between the primary screen (501) and the feed hood (9) is a primary granulation zone (301); and the first nozzle (4) is located at the primary granulation zone (301).

6. The rotary drum granulator for improving particle uniformity according to claim 2, characterized in that: A discharge cover (10) for discharging materials is provided at the other end of the rotating drum (3), the pressing roller (503) is rotatably connected to the discharge cover (10), and a blocking ring (506) is fixedly provided at the tail of the secondary screen (502) to prevent large particles from flowing out.

7. The rotary drum granulator for improving particle uniformity according to any one of claims 1 to 6, characterized in that: The rotating drum (3) is formed by splicing at least two rotating drums, and the connection between the two rotating drums (3) is buckled together by a locking piece (303).

8. The rotary drum granulator for improving particle uniformity according to any one of claims 1 to 6, characterized in that: The driving mechanism (6) comprises a gear ring (601) and a circular rail (602) fixedly mounted on the rotating drum (3), a motor (603) for driving the gear ring (601) to rotate, and a guide wheel (604) abutting against the circular rail (602); a gear (605) is fixedly mounted on the driving shaft of the motor (603); and the gear (605) is meshed with the gear ring (601).

9. The rotary drum granulator for improving particle uniformity according to any one of claims 1 to 6, characterized in that: One end of the fixing frame (2) is rotatably connected to the bearing seat (1), and a hydraulic cylinder (14) for adjusting the angle is provided between the other end of the fixing frame (2) and the bearing seat (1).

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