Bio-organic fertilizer drum granulator
By introducing a drive and adjustment mechanism into the rotary drum granulator, the precise adjustment of the spray pipe position and the convenient disassembly of the spray pipe are achieved, solving the problems of inconsistent particle size and fixed spray pipe position in traditional rotary drum granulators, and improving the uniformity and flexibility of bio-organic fertilizer production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JINGAN FERTILIZER TECH CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional rotary drum granulators cannot guarantee the uniformity of fertilizer particle size during the granulation process. The spray pipe position is fixed and difficult to adjust, and it is difficult to disassemble and maintain when the spray pipe is damaged.
A rotary drum granulator for bio-organic fertilizer was designed. It uses a drive mechanism to rotate the drum, and combines an adjustment mechanism and a clamping mechanism to achieve precise adjustment of the spray pipe position. The particle size is screened by auger blades to ensure the uniformity and stability of fertilizer particles. At the same time, the clamping mechanism facilitates the installation and removal of the spray pipe.
It improves the accuracy of material moisture control, ensures the uniformity and stability of fertilizer particles, enhances the adaptability and production flexibility of the equipment, and simplifies the maintenance process of the spray pipe.
Smart Images

Figure CN224524671U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotary drum granulators, specifically to a rotary drum granulator for bio-organic fertilizer. Background Technology
[0002] In modern agricultural production, bio-organic fertilizer, as an environmentally friendly fertilizer, is widely used in crop growth and soil improvement due to its rich organic matter and nutrients. However, the production process of bio-organic fertilizer is relatively complex, requiring precise control of factors such as fertilizer particle size and moisture content, and the production equipment needs to meet the requirements of high efficiency and stability.
[0003] Currently, there are various types of bio-organic fertilizer granulation equipment on the market, among which disc granulators and rotary drum granulators are the most common. Disc granulators have a simple structure and can adapt to small-batch production needs, but their granulation efficiency is low during large-scale production, and the fertilizer particle size is difficult to control consistently. Rotary drum granulators, on the other hand, have higher production efficiency, but traditional rotary drum granulators have certain limitations in use. Specifically, traditional rotary drum granulators cannot guarantee the particle size of fertilizer granules during the granulation process, resulting in inconsistent particle sizes. Furthermore, the spray pipe of traditional rotary drum granulators is fixed in position, making it difficult to adjust its position as needed, and disassembly and maintenance are difficult when the spray pipe is damaged. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a biological organic fertilizer rotary drum granulator, which solves the technical problems of existing rotary drum granulators being unable to guarantee the particle size of fertilizer particles during the granulation process, resulting in inconsistent fertilizer particle sizes. At the same time, the spray pipe of traditional rotary drum granulators has a fixed position, making it difficult to adjust the position as needed, and it is also difficult to disassemble and maintain the spray pipe when it is damaged.
[0005] According to one aspect, at least one embodiment of the present invention provides a bio-organic fertilizer rotary drum granulator, comprising: The base plate has an inclined top wall and a roller mounted on top of it. Screw blades are fixed to the inner wall of the roller, and several through holes are opened on the side of the screw blades near the inner wall of the roller. Two mounting brackets are symmetrically fixed to the top wall of the base plate, and two guide rollers are symmetrically rotatably mounted on the mounting brackets. A limiting guide rail that cooperates with the guide rollers is fixed to the outer wall of the roller. An n-shaped frame is fixed to the left side of the base plate. A drive mechanism is mounted on the top wall of the base plate and is used to drive the roller to rotate. An adjustment mechanism is fixed to the inner wall of the n-shaped frame; The spray pipe is fixed to the adjustment mechanism by a clamping mechanism.
[0006] For example, in a biological organic fertilizer rotary drum granulator provided in at least one embodiment of the present invention, the driving mechanism includes a No. 1 motor, which is fixed on the base plate by a motor base. The output end of the No. 1 motor is connected to a drive gear through a reducer. The drive gear is meshed with an external gear ring, which is fixed on the outer wall of the drum.
[0007] For example, in a biological organic fertilizer rotary drum granulator provided in at least one embodiment of this utility model, the adjusting mechanism includes a U-shaped seat, the U-shaped seat is fixed on the inner side wall of the n-shaped frame, a lead screw is rotatably installed between the side walls of the U-shaped seat, a second motor is fixed on the bottom wall of the U-shaped seat, the power shaft of the second motor passes through the bottom wall of the U-shaped seat through a bearing and is fixedly connected to the bottom end of the lead screw, a lead screw nut is screwed onto the lead screw, and an mounting plate is fixed on the side wall of the lead screw nut.
[0008] For example, in a biological organic fertilizer rotary drum granulator provided in at least one embodiment of this utility model, two sliders are symmetrically fixed to the side wall of the mounting plate, and two slide rails are symmetrically fixed to the side wall of the U-shaped seat, with the sliders slidably mounted on the corresponding slide rails.
[0009] For example, in a biological organic fertilizer rotary drum granulator provided in at least one embodiment of this utility model, the second motor is a servo motor or a stepper motor with a self-locking function.
[0010] For example, in a biological organic fertilizer rotary drum granulator provided in at least one embodiment of this utility model, the clamping mechanism includes a mounting base. The mounting base is fixed to the side wall of the mounting plate by a connecting block. A mounting groove is provided on the side of the mounting base away from the connecting block. A bidirectional screw is rotatably installed in the mounting groove. Movable blocks are screwed to both ends of the bidirectional screw. The movable blocks are slidably installed in the mounting groove. A clamping block is fixed to the side wall of the movable block. One end of the bidirectional screw passes through the side wall of the mounting base through a bearing and is fixed with a knob.
[0011] For example, in a biological organic fertilizer rotary drum granulator provided in at least one embodiment of the present invention, the clamping end of the clamping block is provided with an arc-shaped groove that cooperates with the spray pipe.
[0012] For example, in a biological organic fertilizer rotary drum granulator provided in at least one embodiment of the present invention, a connecting flange is fixed at one end of the spray pipe, and spray nozzles are evenly distributed on the bottom wall of the pipe body extending into the drum.
[0013] The beneficial effects of the embodiments of this utility model are as follows: In this invention, by combining a spray pipe with an adjustment mechanism, the position of the spray pipe can be precisely adjusted to ensure that the sprayed water mist can evenly wet the material. This not only improves the accuracy of material humidity control but also ensures the uniformity and stability of fertilizer granules during the forming process. The adjustment and clamping mechanisms allow for convenient adjustment of the spray pipe's position to adapt to different production needs. When production conditions change, operators can quickly adjust the height and angle of the spray pipe, thereby optimizing the production process and improving the equipment's adaptability and production flexibility. Simultaneously, the through holes on the auger blades allow fertilizer of suitable particle size to pass through and be discharged from the other end under gravity, while larger particle size fertilizer is rotated by the auger blades until it falls, collides, and is compressed into fertilizer of suitable particle size before being discharged, ensuring that the manufactured fertilizer granules meet production requirements. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0015] Figure 1 This is a perspective view of the external structure of this utility model; Figure 2 This is a perspective view of the internal structure of the drum of this utility model; Figure 3 This is a three-dimensional view of the adjusting mechanism structure of this utility model; Figure 4 This is a three-dimensional view of the clamping mechanism of this utility model; In the diagram: 1. Base plate; 2. Roller; 3. Limiting guide rail; 4. Mounting frame; 5. Guide roller; 6. Motor base; 7. Motor No. 1; 8. Drive gear; 9. External gear ring; 10. N-shaped frame; 11. Adjustment mechanism; 111. U-shaped seat; 112. Lead screw; 113. Motor No. 2; 114. Lead screw nut; 115. Mounting plate; 116. Slider; 117. Slide rail; 12. Clamping mechanism; 121. Mounting base; 122. Connecting block; 123. Mounting groove; 124. Bidirectional screw; 125. Movable block; 126. Clamping block; 127. Knob; 13. Spray pipe; 14. Connecting flange; 15. Nozzle; 16. Screwdriver blade; 17. Through hole. Detailed Implementation The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.
[0016] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0017] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0019] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0021] like Figures 1-2 As shown, it illustrates a biological organic fertilizer rotary drum granulator according to one embodiment of the present invention, comprising: The base plate 1 has an inclined top wall and a roller 2 is installed above it. The inner wall of the roller 2 is fixed with auger blades 16. Several through holes 17 are opened on the side of the roller 2 near the inner wall. Two mounting brackets 4 are symmetrically fixed on the top wall of the base plate 1. Two guide rollers 5 are symmetrically rotated on the mounting brackets 4. The outer wall of the roller 2 is fixed with a limiting guide rail 3 that cooperates with the guide rollers 5. An n-shaped frame 10 is fixed on the left side of the base plate 1. The drive mechanism is installed on the top wall of the base plate 1 and is used to drive the roller 2 to rotate. Adjustment mechanism 11 is fixed on the inner wall of n-type frame 10; The spray pipe 13 is fixed to the adjustment mechanism 11 by the clamping mechanism 12.
[0022] One end of the spray pipe 13 is fixed with a connecting flange 14, and the spray pipe 13 extends into the bottom wall of the pipe body inside the roller 2 and is evenly distributed with nozzles 15.
[0023] In this embodiment, a drive mechanism drives the drum 2 to rotate, and the water mist sprayed from the spray pipe 13 humidifies the bio-organic fertilizer entering the drum 2. The rotation of the drum causes the material particles to agglomerate into spheres due to pressure. Simultaneously, an auger blade 16 is installed on the drum 2, and the drum 2 is set at a certain angle. Through holes 17 on the auger blade 16 allow fertilizer of suitable particle size to pass through and be discharged from the other end under gravity. Larger fertilizer particles are rotated by the auger blade 16 until they fall and collide, being compressed into fertilizer of suitable particle size before being discharged, ensuring that the manufactured fertilizer granules meet production requirements. An adjustment mechanism 11 allows adjustment of the position of the spray pipe 13 to meet different production needs. A clamping mechanism 12 facilitates the installation and removal of the spray pipe 13, and allows for easy replacement when the spray pipe 13 is damaged. A connecting flange 14 on the spray pipe 13 allows for easy connection to an external water pipe.
[0024] like Figure 1 As shown, it illustrates the drive mechanism in another embodiment of the present invention. The drive mechanism includes a first motor 7, which is fixed to the base plate 1 by a motor base 6. The output end of the first motor 7 is connected to a drive gear 8 through a reducer. The drive gear 8 is meshed with an external gear ring 9, which is fixed to the outer wall of the roller 2. In this embodiment, the drive mechanism is used to drive the drum 2 to rotate. When it is necessary to drive the drum 2 to rotate, the switch of the first motor 7 is turned on. The first motor 7 drives the drive gear 8 to rotate. The drive gear 8 drives the drum 2 to rotate through the external gear ring 9, thereby realizing the granulation operation.
[0025] like Figure 3As shown, an adjustment mechanism 11 is illustrated in another embodiment of the present invention. The adjustment mechanism 11 includes a U-shaped seat 111, which is fixed on the inner side wall of the n-shaped frame 10. A lead screw 112 is rotatably mounted between the side walls of the U-shaped seat 111. A second motor 113 is fixed to the bottom wall of the U-shaped seat 111. The power shaft of the second motor 113 passes through the bottom wall of the U-shaped seat 111 via a bearing and is fixedly connected to the bottom end of the lead screw 112. A lead screw nut 114 is screwed onto the lead screw 112. A mounting plate 115 is fixed to the side wall of the lead screw nut 114.
[0026] Two sliders 116 are symmetrically fixed to the side wall of the mounting plate 115, and two slide rails 117 are symmetrically fixed to the side wall of the U-shaped seat 111. The sliders 116 are slidably mounted on the corresponding slide rails 117.
[0027] Motor 113 is a servo motor or stepper motor with a self-locking function.
[0028] In this embodiment, the adjustment mechanism 11 can adjust the position of the spray pipe 13 to meet different production needs. When it is necessary to adjust the height of the adjustment mechanism 11, the switch of the second motor 113 is turned on. The second motor 113 drives the lead screw 112 to rotate. During the rotation of the lead screw 112, the mounting plate 115 moves up and down through the lead screw nut 114, thereby driving the spray pipe 13 to move up and down. The slide rail 117 and the slider 116 can ensure that the mounting plate 115 moves up and down smoothly. At the same time, the second motor 113 is a servo motor or stepper motor with a self-locking function, which can ensure that the position of the mounting plate 115 remains fixed when the second motor 113 stops working, ensuring the stability of the spray pipe 13.
[0029] like Figure 4 As shown, a clamping mechanism 12 in another embodiment of the present invention is illustrated. The clamping mechanism 12 includes a mounting base 121, which is fixed to the side wall of the mounting plate 115 by a connecting block 122. A mounting groove 123 is provided on the side of the mounting base 121 away from the connecting block 122. A bidirectional screw 124 is rotatably mounted in the mounting groove 123. Both ends of the bidirectional screw 124 are screwed with movable blocks 125. The movable blocks 125 are slidably mounted in the mounting groove 123. A clamping block 126 is fixed to the side wall of the movable block 125. One end of the bidirectional screw 124 passes through the side wall of the mounting base 121 through a bearing and is fixed with a knob 127.
[0030] The clamping end of the clamping block 126 is provided with an arc-shaped groove that matches the spray pipe 13.
[0031] In this embodiment, the clamping mechanism 122 facilitates the installation and removal of the spray pipe 13, and allows for easy replacement when the spray pipe 13 is damaged. When it is necessary to remove the spray pipe 13, turn the knob 127. The knob 127 drives the bidirectional screw 124 to rotate. During the rotation of the bidirectional screw 124, the movable block 125 moves in the opposite direction along the mounting groove 123, thereby causing the two clamping blocks 126 to move away from each other. At this time, the spray pipe 13 can be removed.
[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A rotary drum granulator for bio-organic fertilizer, characterized in that, include: The base plate (1) has an inclined top wall and a roller (2) is mounted on the top of the base plate (1). The inner wall of the roller (2) is fixed with auger blades (16). Several through holes (17) are opened on the side of the roller (2) near the inner wall. Two mounting brackets (4) are symmetrically fixed on the top wall of the base plate (1). Two guide rollers (5) are symmetrically rotated on the mounting brackets (4). The outer wall of the roller (2) is fixed with a limiting guide rail (3) that cooperates with the guide rollers (5). An n-shaped frame (10) is fixed on the left side of the base plate (1). A drive mechanism is mounted on the top wall of the base plate (1) and is used to drive the roller (2) to rotate. Adjustment mechanism (11), the adjustment mechanism (11) is fixed on the inner side wall of the n-type frame (10); The spray pipe (13) is fixed to the adjustment mechanism (11) by a clamping mechanism (12).
2. The bio-organic fertilizer rotary drum granulator according to claim 1, characterized in that, The driving mechanism includes a first motor (7), which is fixed on the base plate (1) by a motor seat (6). The output end of the first motor (7) is connected to a drive gear (8) through a reducer. The drive gear (8) is meshed with an external gear ring (9), which is fixed on the outer wall of the roller (2).
3. The bio-organic fertilizer rotary drum granulator according to claim 1, characterized in that, The adjustment mechanism (11) includes a U-shaped seat (111), which is fixed on the inner side wall of the n-shaped frame (10). A lead screw (112) is rotatably installed between the side walls of the U-shaped seat (111). A second motor (113) is fixed on the bottom wall of the U-shaped seat (111). The power shaft of the second motor (113) passes through the bottom wall of the U-shaped seat (111) through a bearing and is fixedly connected to the bottom end of the lead screw (112). A lead screw nut (114) is screwed onto the lead screw (112). A mounting plate (115) is fixed on the side wall of the lead screw nut (114).
4. The bio-organic fertilizer rotary drum granulator according to claim 3, characterized in that, The mounting plate (115) has two sliders (116) symmetrically fixed on its side wall, and the U-shaped seat (111) has two slide rails (117) symmetrically fixed on its side wall. The sliders (116) are slidably mounted on the corresponding slide rails (117).
5. A rotary drum granulator for bio-organic fertilizer according to claim 3, characterized in that, The second motor (113) is a servo motor or stepper motor with a self-locking function.
6. The bio-organic fertilizer rotary drum granulator according to claim 3, characterized in that, The clamping mechanism (12) includes a mounting base (121), which is fixed to the side wall of the mounting plate (115) by a connecting block (122). A mounting groove (123) is provided on the side of the mounting base (121) away from the connecting block (122). A bidirectional screw (124) is rotatably installed in the mounting groove (123). Both ends of the bidirectional screw (124) are screwed with movable blocks (125). The movable blocks (125) are slidably installed in the mounting groove (123). A clamping block (126) is fixed to the side wall of the movable block (125). One end of the bidirectional screw (124) passes through the side wall of the mounting base (121) through a bearing and is fixed with a knob (127).
7. A rotary drum granulator for bio-organic fertilizer according to claim 6, characterized in that, The clamping end of the clamping block (126) is provided with an arc-shaped groove that matches the spray pipe (13).
8. The bio-organic fertilizer rotary drum granulator according to claim 1, characterized in that, One end of the spray pipe (13) is fixed with a connecting flange (14), and the spray pipe (13) extends into the bottom wall of the pipe body inside the roller (2) and is evenly provided with nozzles (15).