A swing granulator

Abstract

The application relates to a swing granulator and relates to the technical field of the granulator, which comprises a granulator body, the lower end of the granulator body is provided with a protective cover, the protective cover is arranged around the lower part of the granulator body, a fixing assembly for fixing the protective cover on the granulator body is arranged on the protective cover, a placing hole is arranged on the side wall of the protective cover, a warm air pipe is fixedly connected in the placing hole and arranged along the setting direction of the placing hole, a plurality of air outlet pipes are fixedly connected on the warm air pipe and communicated with the warm air pipe, the air outlet pipes are directed towards a screen in the granulator body, and a gas supply assembly for supplying hot gas into the warm air pipe is arranged on one side of the granulator body. The application has the effect of reducing the adhesion of materials on the screen of the swing granulator.

Description

Technical Field

[0001] This application relates to the technical field of pellet mills, and in particular to a swing-type pellet mill. Background Technology

[0002] In the production of solid dosage forms in pharmaceuticals, food, and chemicals, granulators serve as crucial material forming equipment, undertaking the important task of processing powdered materials into uniform granules. The oscillating granulator, with its relatively simple structure, convenient operation, and adaptability to various material properties, has been widely used in small- to medium-batch granule production. Its core working principle involves a motor-driven eccentric wheel mechanism that causes a screen-equipped drum to reciprocate. When powdered material enters the hopper, it is compressed and forced through the mesh of the screen by the oscillating action of the drum, ultimately forming granules that meet production requirements. The granulation effect of this equipment directly affects the quality of subsequent products, such as the hardness and disintegration of tablets, as well as the taste and solubility of food granules.

[0003] In the actual operation of a gyratory pellet mill, the screen, as the core component for material granulation, plays a decisive role in production efficiency and pellet quality. However, because some materials involved in the production process have a certain degree of moisture, or easily absorb moisture from the air in the processing environment, these damp materials easily adhere to the surface and inside the mesh of the screen during contact and passage. As production time increases, the adhered material gradually accumulates, clogging the screen mesh and significantly reducing the efficiency of material passage. This not only prolongs the production cycle but may also lead to quality problems such as uneven pellet size and clumping. Furthermore, if the material adhering to the screen for a long time is not cleaned in time, it may deteriorate, contaminating subsequently processed materials and seriously affecting product safety. This is particularly critical for the pharmaceutical and food industries, which have extremely high hygiene requirements. Therefore, how to reduce material adhesion to the screen is a problem that the industry needs to solve. Utility Model Content

[0004] In order to reduce the adhesion of materials on the screen of a gyratory pellet mill, this application provides a gyratory pellet mill.

[0005] The technical solution of the swing-type pellet mill provided in this application is as follows: A gyratory pellet mill includes a pellet mill body, a protective cover at the lower end of the pellet mill body, the protective cover surrounding the lower part of the pellet mill body, a fixing component for fixing the protective cover to the pellet mill body, a placement hole on the side wall of the protective cover, the placement hole being arranged along the side wall of the protective cover, a hot air pipe fixedly connected to the placement hole, the hot air pipe being arranged along the opening direction of the placement hole, a plurality of air outlet pipes fixedly connected and connected to the hot air pipes, the air outlet pipes facing the screen inside the pellet mill body, and an air supply component for supplying hot air to the hot air pipes on one side of the pellet mill body.

[0006] By adopting the above technical solution, the warm air pipe can be fixed to the pellet mill body during the installation of the protective cover. Hot air can be supplied to the warm air pipe through the air supply component. The warm air pipe, together with the air outlet pipe, can deliver hot drying gas to the screen inside the pellet mill body, thereby drying the screen and the particles on the pellet mill body, reducing the adhesion of particles to the screen. The drying gas can also blow off some of the material residues adhering to the screen, thereby reducing the adhesion of materials on the screen of the oscillating pellet mill.

[0007] Optionally, the air supply component includes a heater, which is connected to an air inlet pipe, and the air inlet pipe is connected to an air outlet pipe.

[0008] By adopting the above technical solution, the air supply component uses a heater and is connected to the air outlet pipe through the air inlet pipe, which can stably provide hot air to the heater pipe and ensure the heating effect on the screen.

[0009] Optionally, multiple air outlet ducts are arranged at equal intervals along the length of the warm air duct.

[0010] By adopting the above technical solution, multiple air outlet pipes are equidistantly arranged along the length of the warm air pipe, which can make the hot air act more evenly on the screen, thereby improving the drying effect and efficiency.

[0011] Optionally, the protective cover has a through hole, and an abutment rod is slidably connected in the through hole. A cleaning brush is fixedly connected to one end of the abutment rod inside the protective cover, and the cleaning brush is arranged parallel to the heating pipe.

[0012] By adopting the above technical solution, the cleaning brush can be driven by the sliding contact rod to contact the screen and other components, thereby actively cleaning them.

[0013] Optionally, a groove is provided on the inner wall of the protective cover, and the cleaning brush is placed in the groove.

[0014] By adopting the above technical solution, a groove is opened on the inner wall of the protective cover and the cleaning brush is placed in the groove, which can provide a place for the cleaning brush, making it convenient to store the cleaning brush and use it when needed.

[0015] Optionally, a limiting ring is fixedly connected to the side wall of a section of the abutment rod outside the protective cover, and a spring is fixedly connected between the limiting ring and the inner wall of the protective cover.

[0016] By adopting the above technical solution, a spring is fixedly connected between the limiting ring and the inner wall of the protective cover, which enables the abutment rod to automatically reset after movement, making it convenient to operate the abutment rod.

[0017] Optionally, there is a gap between the abutment rod and the through hole.

[0018] By adopting the above technical solution, the gap between the abutment rod and the through hole allows the abutment rod to drive the cleaning brush to move at a certain angle, thereby increasing the cleaning range of the cleaning brush.

[0019] Optionally, the fixing assembly includes a plurality of fixing bolts threaded onto the protective cover, wherein the shank of the fixing bolts is threaded onto the pellet mill body.

[0020] By adopting the above technical solution, the protective cover is fixed to the pellet mill body with fixing bolts, which can make the protective cover stably installed on the pellet mill body.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The hot air duct and the air outlet duct provide hot air to the screen inside the pellet mill, which can directly and effectively supply hot air to the vicinity of the screen, ensuring the drying effect of the pellets. There is no need to set up additional drying equipment, reducing production costs and the complexity of the production process. 2. The cleaning brush can be driven by the sliding contact rod to contact the screen and other parts, thereby actively cleaning them; 3. The gap between the abutment rod and the through hole allows the abutment rod to move the cleaning brush at a certain angle, thereby increasing the cleaning range of the cleaning brush. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the heating duct in an embodiment of this application.

[0023] In the diagram, 1. Pelletizer body; 2. Protective cover; 21. Placement hole; 22. Through hole; 23. Groove; 3. Fixing component; 31. Fixing bolt; 4. Heater duct; 41. Air outlet duct; 5. Air supply component; 51. Heater; 52. Air inlet pipe; 6. Abutment rod; 7. Cleaning brush; 8. Spring; 9. Limiting ring. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 2 This application will be described in further detail below.

[0025] An embodiment of this application is a swing-type pellet mill, referring to... Figure 1 and Figure 2 The system includes a pellet mill body 1, which is configured as a swing-type pellet mill in the prior art. A protective cover 2 is provided at the lower end of the pellet mill body 1, the protective cover 2 is arranged around the lower part of the pellet mill body 1, and the lower end of the protective cover 2 gradually tapers. A fixing component 3 is provided on the protective cover 2 for fixing the protective cover 2 to the pellet mill body 1.

[0026] The fixing component 3 includes multiple fixing bolts 31 threadedly connected to the protective cover 2. In this embodiment, four fixing bolts 31 are provided, and the fixing bolts 31 are distributed in pairs on both sides of the protective cover 2. The shank of the fixing bolt is threadedly connected to the pellet mill body 1. By rotating the fixing bolts 31, the shank of the fixing bolt 31 is disengaged from the pellet mill body 1, thereby realizing the removal of the protective cover 2 from the pellet mill body 1.

[0027] A placement hole 21 is provided on the side wall of the protective cover 2, and the placement hole 21 is set along the side wall of the protective cover 2. A hot air pipe 4 is fixedly connected in the placement hole 21. In this embodiment, the hot air pipe 4 is set as a square pipe. The hot air pipe 4 is set along the opening direction of the placement hole 21. Multiple air outlet pipes 41 are fixed and connected to the hot air pipe 4. The multiple air outlet pipes 41 are set at equal intervals along the length direction of the hot air pipe 4. The air outlet pipes 41 face the screen inside the pellet mill body 1. A gas supply component 5 for supplying hot air into the hot air pipe 4 is provided on one side of the pellet mill body 1.

[0028] The air supply assembly 5 includes a heater 51, which is connected to an air inlet pipe 52, and the air inlet pipe 52 is connected to an air outlet pipe 41. When the heater 51 is activated, it can supply hot air to the air outlet pipe 41. The air outlet pipe 41, in conjunction with the air outlet pipe 41, can deliver hot and dry gas to the screen inside the pellet mill body 1, thereby drying the screen and the particles on the pellet mill body 1, reducing the occurrence of particles sticking to the screen.

[0029] The protective cover 2 has a through hole 22, and an abutment rod 6 is slidably connected inside the through hole 22, with a gap between the abutment rod 6 and the through hole 22. A cleaning brush 7 is fixedly connected to one end of the abutment rod 6 inside the protective cover 2. In this embodiment, two abutment rods 6 are provided, and both abutment rods 6 are fixedly connected to the same cleaning brush 7. The cleaning brush 7 is arranged parallel to the warm air pipe 4, and a groove 23 is formed on the inner wall of the protective cover 2, within which the cleaning brush 7 is placed. Thus, by sliding the abutment rod 6, the cleaning brush 7 can be driven to abut against components such as the screen, thereby actively cleaning them.

[0030] Meanwhile, in order to facilitate the reset of the abutment rod 6, a limit ring 9 is fixedly connected to the side wall of the section of the abutment rod 6 outside the protective cover 2, and a spring 8 is fixedly connected between the limit ring 9 and the inner wall of the protective cover 2.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A gyratory pellet mill, comprising a pellet mill body (1), characterized in that, The lower end of the pellet mill body (1) is provided with a protective cover (2). The protective cover (2) is arranged around the lower part of the pellet mill body (1). The protective cover (2) is provided with a fixing component (3) for fixing the protective cover (2) to the pellet mill body (1). The side wall of the protective cover (2) is provided with a placement hole (21). The placement hole (21) is arranged along the side wall of the protective cover (2). A hot air pipe (4) is fixedly connected in the placement hole (21). The hot air pipe (4) is arranged along the opening direction of the placement hole (21). Multiple air outlet pipes (41) are fixed and connected to the hot air pipe (4). The air outlet pipes (41) face the screen inside the pellet mill body (1). A gas supply component (5) for supplying hot air to the hot air pipe (4) is provided on one side of the pellet mill body (1).

2. The oscillating pellet mill according to claim 1, characterized in that, The air supply component (5) includes a heater (51), and the heater (51) is connected to an air inlet pipe (52), which is connected to the air outlet pipe (41).

3. The oscillating pellet mill according to claim 1, characterized in that, Multiple air outlet pipes (41) are equidistantly arranged along the length of the warm air pipe (4).

4. A gyratory pellet mill according to claim 1, characterized in that, The protective cover (2) has a through hole (22), and a connecting rod (6) is slidably connected inside the through hole (22). A cleaning brush (7) is fixedly connected to one end of the connecting rod (6) inside the protective cover (2). The cleaning brush (7) is set parallel to the heating pipe (4).

5. A gyratory pellet mill according to claim 4, characterized in that, The inner wall of the protective cover (2) is provided with a groove (23), and the cleaning brush (7) is placed in the groove (23).

6. A gyratory pellet mill according to claim 5, characterized in that, The abutment rod (6) is fixedly connected to a limiting ring (9) on the side wall of a section outside the protective cover (2), and a spring (8) is fixedly connected between the limiting ring (9) and the inner wall of the protective cover (2).

7. A gyratory pellet mill according to claim 6, characterized in that, There is a gap between the abutment rod (6) and the through hole (22).

8. A gyratory pellet mill according to claim 1, characterized in that, The fixing component (3) includes a plurality of fixing bolts (31) threaded onto the protective cover (2), the shank of the fixing bolts (31) being threaded onto the pellet mill body (1).

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