Bidirectional mixing granulator and method

Abstract

The invention belongs to the technical field of granulators, and discloses a two-way mixing granulator and a granulation method.The two-way mixing granulator comprises a preparation box, a metering box is installed at the top of the preparation box, and through cooperation of an installation box, a quantitative discharging mechanism and other structures, raw materials fall into a circular groove in a top plate; the circular grooves play a role in guiding raw materials to accurately enter the quantitative barrels, a servo motor is started to drive a second gear to rotate, and the second gear is meshed with a first gear on a cylinder, so that the cylinder and a rotating disc connected with the cylinder rotate, and the two quantitative barrels symmetrically distributed in the rotating disc rotate in the rotating process. Wherein one quantitative cylinder is aligned with the circular groove to receive raw materials, after the quantitative cylinder is full of the raw materials, the quantitative cylinder rotates to the notch groove below the limiting plate along with continuous rotation of the rotating disc, the plugging cover on the bottom surface of the quantitative cylinder is opened under the action of gravity, and the raw materials fall down through the discharging pipe. And the amount of raw materials entering the granulation link each time can be accurately controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of granulators, in particular to a two-way mixing granulator and a method. Background Art

[0002] Bidirectional mixing granulator is a kind of equipment integrating mixing and granulating functions. It is mainly used to make powdered or fine granular raw materials into granules with certain shape, size and quality requirements through specific mechanical movement and operation. Compared with traditional unidirectional mixing or granulating equipment, its characteristic is that it can realize bidirectional material movement and processing.

[0003] The feeding device of traditional granulating equipment mostly relies on simple funnels or open containers to feed raw materials. This method makes it difficult to accurately control the amount of raw materials fed, resulting in large fluctuations in the amount of raw materials entering the granulation process each time. Traditional feeding methods usually do not have the function of continuous quantitative feeding, and require frequent starting and stopping of equipment to replenish raw materials, which not only reduces production efficiency, but also increases equipment wear and energy consumption. Summary of the invention

[0004] In order to solve the problem of inconvenience in quantitative feeding mentioned in the above background technology, the present invention provides a bidirectional mixing granulator and method.

[0005] To achieve the above object, the present invention provides the following technical solution: a bidirectional mixing granulator, comprising a preparation box, a metering box is installed on the top of the preparation box, a granulating element and a stirring element are installed inside the preparation box respectively, and an installation box is fixedly installed at the bottom of the preparation box, and a quantitative feeding mechanism is installed inside the installation box;

[0006] The stirring member comprises an outer rod, an inner rod, a sealing cover, a stirring rod and a cylinder. The inner wall of the outer rod is provided with an annular groove, a slider is slidably connected inside the annular groove, one end of the inner rod is fixedly connected to one end of the stirring rod, the other end of the inner rod is connected to the output end of the cylinder, and the sealing cover is fixedly installed on one end of the outer rod close to the stirring rod;

[0007] The quantitative unloading mechanism includes a top plate, a rotating disk, a quantitative cylinder, a limiting plate and a discharge pipe, wherein the top plate is located above the rotating disk and the quantitative cylinder, the limiting plate is located below the quantitative cylinder, and the discharge pipe is located below the limiting plate.

[0008] Preferably, a flow guide pipe is connected through the bottom surface of the preparation box, and the flow guide pipe is larger at the top and smaller at the bottom, which is used to prevent raw materials from falling. A feed hopper is installed on the preparation box.

[0009] The top of the metering box is connected with a liquid infusion tube, and the inside of the metering box is connected with a nozzle, and the nozzle can spray liquid inside the preparation box.

[0010] The granulating component comprises a driving motor fixedly mounted on one side of a preparation box, an output end of the driving motor is spline-connected with a granulating knife, and the granulating knife is located inside the preparation box.

[0011] The outer wall of the outer rod is connected to the inner wall of the bottom of the preparation box, the outer wall of the inner rod is connected to the slider, and the slider is adapted to the annular groove. The stirring rod can perform telescopic and rotational movements through the cooperation of the cylinder, the inner rod, the outer rod, the annular groove and the slider. A connecting plate is fixedly connected to the bottom surface of the cylinder, and one side of the connecting plate is connected to the inner wall of the installation box.

[0012] The top plate is provided with a circular groove which is compatible with the output end of the guide tube, and the circular groove is used to transport raw materials. The bottom surface of the top plate is fixedly connected to a support column, and the surface of the support column is rotatably connected to a cylinder, and one end of the support column is connected to the inner wall of the limiting plate, and the outer wall of the cylinder is fixedly connected to the inner wall of the rotating disk.

[0013] The end of the cylinder close to the bottom of the mounting box is fixedly connected with a first gear, the first gear is meshingly connected with a second gear, a servo motor is fixedly installed on the bottom surface of the limiting plate, and the output end of the servo motor is spline-connected with the second gear.

[0014] There are two metering cylinders, which are symmetrically distributed inside the rotating disk, and the bottom surfaces of the two metering cylinders are hinged with sealing covers through hinges. A notch groove is opened on the side of the limiting plate away from the guide tube, and the notch groove is used for the rotation of the sealing cover.

[0015] The bottom surface of the support column is fixedly connected with a support frame, the top surface of the support frame is connected to the bottom surface of the limiting plate, and the bottom surface of the support frame is connected to the inner bottom wall of the installation box.

[0016] The present application also proposes a granulation method of a bidirectional mixing granulator, and the granulation method is as follows:

[0017] S1, putting the prepared raw materials into the preparation box of the two-way mixing granulator;

[0018] S2, turning on the stirring element, mixing at a set stirring speed, during the mixing process, the raw materials move in three dimensions in the preparation box under the action of the stirring rod to achieve sufficient mixing;

[0019] S3. After the mixing is completed, start the granulation knife, which cuts and squeezes the mixed raw materials into granules. During the granulation process, pay attention to the formation of the granules. If the granules are too loose, it may be that the binder is insufficient or the granulation knife speed is not appropriate. If the granules are too compact or sticky, it may be that there is too much binder or the granulation time is too long. The granulation parameters can be adjusted appropriately according to the actual situation.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention cooperates with structures such as an installation box and a quantitative unloading mechanism, so that the raw material falls into the circular groove on the top plate, and the circular groove plays a role in guiding the raw material to accurately enter the quantitative cylinder. The servo motor is started to drive the second gear to rotate, and the second gear is meshed with the first gear on the cylinder, so that the cylinder and the rotating disk connected thereto rotate. Two quantitative cylinders are symmetrically distributed inside the rotating disk. During the rotation process, one of the quantitative cylinders is aligned with the circular groove to receive the raw material. When the quantitative cylinder is full of raw materials, as the rotating disk continues to rotate, the quantitative cylinder is transferred to the notch groove below the limiting plate. The sealing cover on the bottom surface of the quantitative cylinder is opened under the action of gravity, and the raw material falls through the discharge pipe. By setting a quantitative cylinder with a specific volume, the amount of raw material entering the granulation link each time can be accurately controlled to ensure the consistency and stability of product quality. The two quantitative cylinders are symmetrically distributed in the rotating disk, and one can unload while the other is loading, thereby realizing continuous quantitative unloading operation, improving the granulation production efficiency, and reducing product differences caused by fluctuations in the amount of raw materials.

[0022] The present invention arranges a metering barrel and a stirring piece, and the cylinder is started to push the slider on the outer wall of the inner rod to slide along the annular groove on the inner wall of the outer rod. The inner rod makes a rotational motion while sliding along the annular groove on the inner wall of the outer rod, so that the stirring rod can both telescope and adjust the stirring range and rotate, so as to fully stir and mix the raw materials in the preparation box. The stirring rods at different positions and lengths can make the raw materials produce complex movements in the horizontal and vertical directions when rotating, so as to prevent the raw materials from agglomerating and make the various components evenly distributed. The design that the stirring rod can be telescoped and rotated allows it to penetrate into different depths and positions of the raw materials for stirring. During the rotation process, the stirring rods at different positions can stir different levels of the raw materials, so that the raw materials can be effectively stirred from the top to the bottom of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the cutting structure of the present invention;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0027] Figure 5 It is a schematic diagram of a stirring member of the present invention;

[0028] Figure 6 This is a schematic diagram of the coordination relationship between the quantitative feeding mechanism and the flow guide pipe of the present invention;

[0029] Figure 7 It is a schematic diagram of the disassembly of the quantitative feeding mechanism of the present invention.

[0030] In the figure: 1. preparation box; 2. metering box; 21. nozzle; 3. granulating part; 31. driving motor; 32. granulating knife; 4. stirring part; 41. outer rod; 42. inner rod; 43. sealing cover; 44. stirring rod; 45. cylinder; 46. annular groove; 47. slider; 5. installation box; 6. quantitative feeding mechanism; 61. top plate; 611. circular groove; 62. rotating disk; 63. quantitative cylinder; 631. blocking cover; 64. limiting plate; 641. notched groove; 65. discharge pipe; 66. support column; 67. cylinder; 671. first gear; 672. second gear; 68. servo motor; 7. guide pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 7 As shown, the present invention provides a bidirectional mixing granulator, comprising a preparation box 1, a metering box 2 is installed on the top of the preparation box 1, a granulating element 3 and a stirring element 4 are installed inside the preparation box 1, and a mounting box 5 is fixedly installed at the bottom of the preparation box 1, and a quantitative feeding mechanism 6 is installed inside the mounting box 5;

[0033] The stirring member 4 includes an outer rod 41, an inner rod 42, a sealing cover 43, a stirring rod 44 and a cylinder 45. An annular groove 46 is provided on the inner wall of the outer rod 41. A slider 47 is slidably connected inside the annular groove 46. One end of the inner rod 42 is fixedly connected to one end of the stirring rod 44. The other end of the inner rod 42 is connected to the output end of the cylinder 45. The sealing cover 43 is fixedly installed on one end of the outer rod 41 close to the stirring rod 44.

[0034] The quantitative unloading mechanism 6 includes a top plate 61, a rotating disk 62, a quantitative cylinder 63, a limiting plate 64 and a discharge pipe 65. The top plate 61 is located above the rotating disk 62 and the quantitative cylinder 63, the limiting plate 64 is located below the quantitative cylinder 63, and the discharge pipe 65 is located below the limiting plate 64.

[0035] The above scheme is adopted: the metering box 2 is mainly used for accurate metering and adding liquid additives. The infusion tube facilitates the liquid input, and the internal nozzle 21 can spray the liquid evenly on the raw material, so that the liquid additive is quickly mixed with the raw material, ensuring the uniform distribution of the additive during the granulation process, thereby improving the quality stability and consistency of the product.

[0036] like Figures 2 to 6 As shown, the bottom surface of the preparation box 1 is connected with a guide tube 7, which is larger at the top and smaller at the bottom, and is used to prevent raw materials from falling. A feed hopper is installed on the preparation box 1, and a liquid infusion tube is connected to the top of the metering box 2. A nozzle 21 is connected to the inside of the metering box 2, and the nozzle 21 can spray liquid inside the preparation box 1. The granulating part 3 includes a driving motor 31 fixedly installed on one side of the preparation box 1, and the output end of the driving motor 31 is splined with a granulating knife 32, and the granulating knife 32 is located inside the preparation box 1. The outer wall of the outer rod 41 is connected to the inner wall of the bottom surface of the preparation box 1, and the outer wall of the inner rod 42 is connected to the slider 47, and the slider 47 is adapted to the annular groove 46. The stirring rod 44 can perform telescopic movement and rotational movement through the cooperation of the cylinder 45, the inner rod 42, the outer rod 41, the annular groove 46 and the slider 47. The bottom surface of the cylinder 45 is fixedly connected with a connecting plate, and one side of the connecting plate is connected to the inner side wall of the installation box 5.

[0037] The above scheme is adopted: the outer rod 41 provides support and guidance for the movement of the stirring rod 44, which is connected to the inner wall of the bottom surface of the preparation box 1 to fix the reference position of stirring, and the annular groove 46 of the inner wall cooperates with the slider 47 to limit the movement trajectory of the inner rod 42, so that the stirring rod 44 can stably perform telescopic and rotational movements, and the inner rod 42 connects the stirring rod 44 and the cylinder 45 to transmit the power of the cylinder 45 so that the stirring rod 44 can be telescopic and adjust the position, and at the same time, the sliding of the slider 47 in the annular groove 46 ensures the stability of the stirring rod 44 during rotation, making the stirring action more stable and reliable, and the sealing cover 43 prevents the raw materials from entering the connection gap between the outer rod 41 and the inner rod 42 to avoid the accumulation of raw materials affecting the stirring rod The movement of 44 also plays a certain sealing role, reducing dust and other impurities from entering the annular groove 46 area, ensuring the cleanliness and normal operation of the internal structure. The stirring rod 44 is in direct contact with the raw material and stirs the raw material through rotation and telescopic movement. Stirring rods 44 of different shapes and lengths can produce different material flows when rotating, so that the raw materials are fully mixed in the preparation box 1, breaking the agglomeration state of the raw materials and ensuring that various components are evenly dispersed. The cylinder 45 provides a power source for the telescopic movement of the stirring rod 44. The stirring range of the stirring rod 44 can be adjusted by controlling the stroke of the cylinder 45 to meet the stirring needs of different amounts of raw materials, and cooperate with other structures to realize the complex movement of the stirring rod 44.

[0038] like Figures 1 to 7 As shown, a circular groove 611 adapted to the output end of the guide tube 7 is opened on the top plate 61, and the circular groove 611 is used to transport raw materials. A support column 66 is fixedly connected to the bottom surface of the top plate 61, and a cylinder 67 is rotatably connected to the surface of the support column 66, and one end of the support column 66 is connected to the inner wall of the limiting plate 64, and the outer wall of the cylinder 67 is fixedly connected to the inner wall of the rotating disk 62. The end of the cylinder 67 close to the bottom of the installation box 5 is fixedly connected to the first gear 671, and the first gear 671 is meshed with the second gear 672. The bottom surface of the limiting plate 64 is fixedly installed with a servo motor 68, and the output end of the servo motor 68 is splined to the second gear 672, there are two metering cylinders 63, the two metering cylinders 63 are symmetrically distributed inside the rotating disk 62, and the bottom surfaces of the two metering cylinders 63 are hinged with a blocking cover 631 through a hinge, a notch groove 641 is provided on the side of the limiting plate 64 away from the guide tube 7, and the notch groove 641 is used for the rotation of the blocking cover 631, the bottom surface of the support column 66 is fixedly connected with a support frame, the top surface of the support frame is connected to the bottom surface of the limiting plate 64, and the bottom surface of the support frame is connected to the inner bottom wall of the mounting box 5.

[0039] The above scheme is adopted: the top plate 61 receives the raw materials dropped from the guide tube 7, and its circular groove 611 plays the role of accurately guiding the raw materials into the quantitative cylinder 63, ensuring the accuracy and stability of raw material feeding and preventing the raw materials from scattering. The rotating disk 62 realizes the rotation switching of the quantitative cylinder 63 by cooperating with the cylinder 67 and other structures. The distribution design of the quantitative cylinder 63 inside it is reasonable, and it can complete the actions of loading and unloading in sequence during the rotation process, realize continuous quantitative unloading operation, and improve the granulation efficiency. The quantitative cylinder 63 has a certain volume, which can accurately measure the amount of raw materials entering the granulation link each time, and realizes the loading and unloading by cooperating with the rotating disk 62, the limiting plate 64 and other structures. The automated process of transfer and unloading ensures stable control of the amount of raw materials during the granulation process. On the one hand, the limiting plate 64 provides bottom support for the quantitative cylinder 63. On the other hand, the notch groove 641 provided therein provides a rotation space for the sealing cover 631 of the quantitative cylinder 63, so that the quantitative cylinder 63 can accurately unload materials at a specific position. The limiting plate 64 is connected to structures such as the support column 66 to ensure the stability of the entire quantitative unloading mechanism 6. The discharge pipe 65 serves as a channel for unloading the quantitative cylinder 63 to accurately transport the quantitative raw materials to the granulation area. The pipe diameter, length and other parameters can be designed according to the granulation requirements and raw material characteristics to ensure that the raw materials can enter the granulation process smoothly and evenly.

[0040] The working principle and use process of the present invention:

[0041] Raw material feeding and metering: The raw materials enter the preparation box 1 through the feed hopper on the preparation box 1. At the same time, if there is a liquid additive, it can be input into the metering box 2 through the infusion tube on the top of the metering box 2, and then the liquid is evenly sprayed on the raw materials in the preparation box 1 through the nozzle 21 to achieve preliminary mixing of the raw materials and the additives. The metering box 2 can accurately control the amount of liquid additives to ensure that the proportion of additives is accurate each time granulation is performed, thereby ensuring the stability of product quality;

[0042] Stirring and mixing: The air cylinder 45 is started, pushing the slider 47 on the outer wall of the inner rod 42 to slide along the annular groove 46 on the inner wall of the outer rod 41. The inner rod 42 makes a rotational motion while sliding along the annular groove 46 on the inner wall of the outer rod 41, so that the stirring rod 44 can not only be telescopic to adjust the stirring range, but also be able to rotate, so as to fully stir and mix the raw materials in the preparation box 1. The stirring rods 44 of different positions and lengths can make the raw materials produce complex movements in the horizontal and vertical directions when rotating, so as to prevent the raw materials from agglomerating and make the various components evenly distributed;

[0043] Granulation: The driving motor 31 is started, and the granulating knife 32 connected by a spline at its output end rotates at high speed. The falling raw materials are cut and squeezed by the granulating knife 32 to be made into granules that meet the requirements;

[0044] Quantitative unloading: The mixed raw materials in the preparation box 1 fall through the guide tube 7. The guide tube 7 is in a shape of being larger at the top and smaller at the bottom, which can effectively control the falling speed and flow direction of the raw materials to avoid splashing or clogging when the raw materials fall. The raw materials fall into the circular groove 611 on the top plate 61. The circular groove 611 plays a role in guiding the raw materials to accurately enter the quantitative cylinder 63. The servo motor 68 is started to drive the second gear 672 to rotate. The second gear 672 is engaged with the first gear 671 on the cylinder 67, so that the cylinder 67 and the rotating disk 62 connected thereto rotate. Two quantitative cylinders 63 are symmetrically distributed inside the rotating disk 62. During the rotation process, one of the quantitative cylinders 63 is aligned with the circular groove 611 to receive the raw materials. When the quantitative cylinder 63 is filled with raw materials, as the rotating disk 62 continues to rotate, the quantitative cylinder 63 turns to the notch groove 641 below the limiting plate 64, and the blocking cover 631 on the bottom of the quantitative cylinder 63 is opened under the action of gravity, and the raw materials fall through the discharge pipe 65.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bidirectional mixing granulator, comprising a preparation box (1), characterized in that: A metering box (2) is installed on the top of the preparation box (1), a granulating element (3) and a stirring element (4) are installed inside the preparation box (1), and an installation box (5) is fixedly installed on the bottom of the preparation box (1), and a quantitative feeding mechanism (6) is installed inside the installation box (5); The stirring member (4) comprises an outer rod (41), an inner rod (42), a sealing cover (43), a stirring rod (44) and a cylinder (45); an inner wall of the outer rod (41) is provided with an annular groove (46); a slider (47) is slidably connected inside the annular groove (46); one end of the inner rod (42) is fixedly connected to one end of the stirring rod (44); the other end of the inner rod (42) is connected to the output end of the cylinder (45); and the sealing cover (43) is fixedly installed on one end of the outer rod (41) close to the stirring rod (44); The quantitative unloading mechanism (6) comprises a top plate (61), a rotating disk (62), a quantitative cylinder (63), a limiting plate (64) and a discharge pipe (65), wherein the top plate (61) is located above the rotating disk (62) and the quantitative cylinder (63), the limiting plate (64) is located below the quantitative cylinder (63), and the discharge pipe (65) is located below the limiting plate (64).

2. The bidirectional mixing granulator according to claim 1, characterized in that: The bottom surface of the preparation box (1) is connected through a flow guide pipe (7), which is larger at the top and smaller at the bottom, and is used to prevent raw materials from falling. A feed hopper is installed on the preparation box (1).

3. The two-way mixing granulator according to claim 1, characterized in that: The top of the metering box (2) is connected through a liquid infusion tube, the interior of the metering box (2) is connected through a nozzle (21), and the nozzle (21) can spray liquid into the interior of the preparation box (1).

4. The bidirectional mixing granulator according to claim 1, characterized in that: The granulating element (3) comprises a driving motor (31) fixedly mounted on one side of the preparation box (1); the output end of the driving motor (31) is spline-connected to a granulating knife (32), and the granulating knife (32) is located inside the preparation box (1).

5. The bidirectional mixing granulator according to claim 1, characterized in that: The outer wall of the outer rod (41) is connected to the inner wall of the bottom surface of the preparation box (1), the outer wall of the inner rod (42) is connected to the slider (47), and the slider (47) is adapted to the annular groove (46). The stirring rod (44) can perform telescopic movement and rotational movement through the cooperation of the cylinder (45), the inner rod (42), the outer rod (41), the annular groove (46) and the slider (47). The bottom surface of the cylinder (45) is fixedly connected to a connecting plate, and one side of the connecting plate is connected to the inner wall of the installation box (5).

6. The bidirectional mixing granulator according to claim 1, characterized in that: The top plate (61) is provided with a circular groove (611) adapted to the output end of the guide tube (7), and the circular groove (611) is used to transport raw materials. The bottom surface of the top plate (61) is fixedly connected to a support column (66), and the surface of the support column (66) is rotatably connected to a cylinder (67), and one end of the support column (66) is connected to the inner wall of the limiting plate (64), and the outer wall of the cylinder (67) is fixedly connected to the inner wall of the rotating disk (62).

7. The bidirectional mixing granulator according to claim 6, characterized in that: A first gear (671) is fixedly connected to one end of the cylinder (67) close to the bottom of the installation box (5), and the first gear (671) is meshingly connected to a second gear (672). A servo motor (68) is fixedly installed on the bottom surface of the limiting plate (64), and the output end of the servo motor (68) is spline-connected to the second gear (672).

8. The bidirectional mixing granulator according to claim 1, characterized in that: The number of the metering cylinders (63) is two, and the two metering cylinders (63) are symmetrically distributed inside the rotating disk (62), and the bottom surfaces of the two metering cylinders (63) are hingedly connected with a blocking cover (631) through a hinge, and a notch groove (641) is formed on a side of the limiting plate (64) away from the guide tube (7), and the notch groove (641) is used for the rotation of the blocking cover (631).

9. The bidirectional mixing granulator according to claim 6, characterized in that: The bottom surface of the support column (66) is fixedly connected to a support frame, the top surface of the support frame is connected to the bottom surface of the limiting plate (64), and the bottom surface of the support frame is connected to the inner bottom wall of the installation box (5).

10. A granulation method of a bidirectional mixing granulator, applied to the bidirectional mixing granulator according to any one of claims 1 to 9, characterized in that: The granulation method is as follows: S1, placing the prepared raw materials into a preparation box (1) of a bidirectional mixing granulator; S2, turning on the stirring element (4) and mixing according to the set stirring speed. During the mixing process, the raw materials move in three dimensions in the preparation box (1) under the action of the stirring rod (44) to achieve sufficient mixing; S3. After the mixing is completed, the granulating knife (32) is started. The granulating knife (32) cuts and squeezes the mixed raw materials into granules. During the granulating process, it is necessary to observe the formation of the granules. If the granules are too loose, it may be that the binder is insufficient or the rotation speed of the granulating knife (32) is not appropriate. If the granules are too compact or sticky, it may be that there is too much binder or the granulating time is too long. The granulating parameters can be appropriately adjusted according to the actual situation.

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