A granulator for pharmaceutical production

Abstract

The utility model discloses a pelletizer for medicine production, including the shell, the top movable installation of shell is equipped with the discharge cylinder of left and right symmetry setting, the outside fixed mounting of shell has drying subassembly, the upper fixed mounting of shell in has the material guiding ring board, the top fixed mounting of shell has the pelletizing motor, drying subassembly includes the ring pipe of fixed mounting in the shell outside, the inner side fixed connection of ring pipe has the blast pipe in the shell, the outside fixed mounting of shell has the heating box. This pelletizer for medicine production, medicine granule falls into the circle through material guiding ring board, and the dispersion board disperses it to avoid concentration, and the blast pipe is sent into the shell inside through ring pipe after fan inhales the air heating, ensures that granule is even dry, and subsequently granule falls to the shell below, and the heat conduction effect of heating coil pipe is passed through, and the shell inner wall heats granule again to ensure sufficient drying.

Description

Technical Field

[0001] This utility model relates to the field of tablet manufacturing technology, specifically a granulator for pharmaceutical production. Background Technology

[0002] Pharmaceutical manufacturing refers to the process of processing raw materials into medicines that can be used for medical purposes. The pharmaceutical manufacturing process can generally be divided into the raw material production stage and the formulation production stage of making the raw material into a certain dosage form. In the formulation production stage of making the raw material into a certain dosage form, a granulator is usually used to make the stirred material into the required granules. It is particularly suitable for materials with high viscosity, grinding moist powder raw materials into granules, and can also be widely used to crush substances that have already formed lumps into granules.

[0003] The existing patent publication number CN221638049U discloses a granulator for pharmaceutical production. When processing pharmaceutical granules, a fan installed in the mounting cylinder is activated. The air generated by the fan is delivered to the drying air duct through the air supply pipe and evenly sprayed into the interior of the shell through the air inlet to dry the pharmaceutical granules. The air drawn in is filtered and purified by a filter screen to prevent foreign objects from being sucked into the shell and contaminating the pharmaceuticals. This effectively prevents the cut pharmaceutical granules from sticking together or adhering to the inner wall of the shell, thus improving the granulation effect of the pharmaceuticals.

[0004] When the above-mentioned patent is used, the granulated medicine gathers towards the center along the guide plate, and at the same time, it is blown through the drying air duct to speed up the drying process. However, the temperature of the blown air is low, and the particles that roll down through the guide plate are concentrated in the middle. The blowing air dries from the outside, which results in the medicine particles not being uniform in the drying process. At the same time, it is not convenient to disassemble and clean the discharge cylinder and the extrusion screen. Utility Model Content

[0005] The purpose of this invention is to provide a granulator for pharmaceutical production, which solves the problems mentioned in the background art, such as the low temperature of the blown air, the concentration of particles rolling downwards through the guide plate in the middle, and the drying of the powder by blowing air from the outside, resulting in uneven drying of the pharmaceutical particles and the inconvenience of disassembling and cleaning the discharge cylinder and the extrusion screen.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a granulator for pharmaceutical production, comprising a shell, a discharge cylinder symmetrically arranged on the left and right sides of the top of the shell, a drying assembly fixedly installed on the outside of the shell, a guide ring plate fixedly installed on the upper inside of the shell, and a granulating motor fixedly installed on the top of the shell; the drying assembly includes a ring pipe fixedly installed on the outside of the shell, an air blowing pipe located inside the shell fixedly connected to the inner side of the ring pipe, a heating box fixedly installed on the outside of the shell, a fan fixedly installed on the top of the heating box, a heating plate fixedly installed inside the ring pipe, the heating box communicating with the ring pipe, a heating coil fixedly installed on the lower outside of the shell, a support frame fixedly installed on the bottom inside the shell, a column fixedly installed on the top of the support frame, and a dispersing plate fixedly installed on the top plate of the column.

[0007] Preferably, the dispersing plate is centrally located below the guide ring plate, and the dispersing plate is cone-shaped.

[0008] Preferably, multiple air blowers are arranged in a ring at equal intervals, and all multiple air blowers are located below the dispersion plate.

[0009] Preferably, the heating coil is attached to the outer wall of the outer shell, the heating coil is arranged in a conical shape corresponding to the lower part of the outer shell, and an insulation shell located outside the heating coil is fixedly installed on the outside of the outer shell.

[0010] Preferably, the outer casing includes a shell and a top cover. The top of the shell is provided with a slot, and the top cover is movably engaged with the inside of the slot. A fixing bolt located in the slot is movably installed on the top of the top cover. A ring edge arranged symmetrically on the left and right is fixedly installed on the top of the top cover. An opening located inside the ring edge is opened on the top of the top cover, and a stepped groove is provided inside the opening. The discharge cylinder includes a cylinder body and an extrusion plate. The extrusion plate is movably engaged with the inside of the stepped groove. A stepped edge is provided at the bottom of the cylinder body. The stepped edge is movably engaged with the inside of the stepped groove. A protruding edge is fixedly connected to the outside of the cylinder body, and a fixing bolt located inside the ring edge is movably installed on the top of the protruding edge.

[0011] Preferably, the stepped edge is positioned above the extrusion perforated plate.

[0012] Preferably, a pelletizing blade is fixedly mounted on the outside of the output shaft of the pelletizing motor, located inside the housing, and the pelletizing blade is positioned below the extrusion plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The medicine granules fall into a circle through the guide ring plate and are dispersed by the dispersion plate to avoid concentration. The fan draws in air, heats it, and sends it into the shell through the ring pipe and the blower pipe to ensure that the granules are dried evenly. Then the granules fall to the bottom of the shell and are heated again by the heat conduction of the heating coil to ensure that the granules are fully dried.

[0015] 2. By removing the first fixing bolt, the top cover can be lifted upward from the slot to remove it. Then, remove the second fixing bolt above the convex edge, move the cylinder upward from the inside of the ring edge, and remove the extrusion plate stuck between the stepped edge and the stepped groove to facilitate cleaning and maintenance after use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the drying component of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the outer shell of this utility model;

[0019] Figure 4 This is a partial exploded view of the outer shell structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the discharge cylinder of this utility model.

[0021] In the diagram: 1. Outer shell; 11. Shell; 12. Top cover; 13. Slot; 14. Fixing bolt one; 15. Ring edge; 16. Through port; 17. Stepped groove; 2. Discharge cylinder; 21. Cylinder body; 22. Extrusion perforated plate; 23. Stepped edge; 24. Raised edge; 25. Fixing bolt two; 3. Drying assembly; 31. Ring pipe; 32. Air blowing pipe; 33. Heating box; 34. Fan; 35. Heating plate; 36. Heating coil; 37. Support frame; 38. Column; 39. Dispersion plate; 4. Guide ring plate; 5. Pelletizing motor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides a technical solution: a granulator for pharmaceutical production, comprising a shell 1, a discharge cylinder 2 symmetrically arranged on the top of the shell 1, a drying assembly 3 fixedly installed on the outside of the shell 1, a guide ring plate 4 fixedly installed on the upper inside of the shell 1, and a granulating motor 5 fixedly installed on the top of the shell 1; the drying assembly 3 includes a ring pipe 31 fixedly installed on the outside of the shell 1, an air blowing pipe 32 fixedly connected to the inner side of the ring pipe 31 located inside the shell 1, a heating box 33 fixedly installed on the outside of the shell 1, a fan 34 fixedly installed on the top of the heating box 33, a heating plate 35 fixedly installed inside the ring pipe 31, and the heating box 33 communicating with the ring pipe 31; the lower part of the outer shell 1... A heating coil 36 is fixedly installed in the outer shell 1. A support frame 37 is fixedly installed at the bottom inside the outer shell 1. A column 38 is fixedly installed on the top of the support frame 37. A dispersing plate 39 is fixedly installed on the top plate of the column 38. The medicine particles are guided down along the guide ring plate 4 and roll into a circle. Then they fall onto the dispersing plate 39 and roll outwards to disperse and avoid concentration. The fan 34 draws in air and sends it into the heating box 33. After the air is heated by the heating plate 35, it is sent into the ring pipe 31 and blown into the interior of the outer shell 1 from the ring-shaped air blowing pipe 32. The hot air ensures that the medicine particles are dried evenly. The particles then fall to the bottom of the outer shell 1. Through the heat conduction of the heating coil 36, the inner wall of the outer shell 1 heats the particles again to ensure that the medicine particles are fully dried.

[0024] The bottom of the outer shell 1 is connected to a discharge pipe, and a discharge auger can be installed in the discharge pipe to discharge the medicine particles evenly.

[0025] The dispersing plate 39 is centrally located below the guide ring plate 4. The dispersing plate 39 is cone-shaped, which allows the drug particles falling from the guide ring plate 4 to be more evenly dispersed on the dispersing plate 39. Then, they roll down along the inclined surface of the cone to the vicinity of the inner wall of the outer shell 1, which improves the dispersion efficiency of the drug particles and also helps to reduce the mutual adhesion between particles, ensuring that each drug particle can be fully dried.

[0026] Multiple air blowers 32 are arranged in a ring at equal intervals. All air blowers 32 are located below the dispersion plate 39, ensuring that hot air can evenly and comprehensively cover the area inside the outer shell 1. The outlet direction of each air blower 32 has been carefully adjusted to form a gentle yet powerful airflow. This airflow can both propel the drug particles to tumble continuously during the drying process, increasing the drying area, and prevent the particles from splashing everywhere due to excessive airflow, thus affecting the drying effect. The ring-shaped and equidistant arrangement ensures the uniform distribution of hot air and avoids local overheating or undercooling.

[0027] The heating coil 36 is attached to the outer wall of the outer shell 1. The heating coil 36 is set in a conical transition shape corresponding to the lower part of the outer shell 1. An insulation shell is fixedly installed on the outside of the outer shell 1, which allows the heating coil 36 to fit the shape of the outer shell 1 more closely, improving the heat transfer efficiency and ensuring that the heat is evenly distributed in the lower area of ​​the outer shell 1. This avoids the problem of scorching or deterioration of the medicine particles caused by excessive local temperature. The insulation shell further reduces heat loss, making the entire drying process more efficient and energy-saving.

[0028] Please see Figure 4 and Figure 5 The outer casing 1 includes a housing 11 and a top cover 12. A slot 13 is provided on the top of the housing 11, and the top cover 12 is movably engaged with the inside of the slot 13. A fixing bolt 14 located within the slot 13 is movably installed on the top of the top cover 12. Symmetrically arranged circumferential edges 15 are fixedly installed on the top of the top cover 12. An opening 16 located inside the circumferential edges 15 is provided on the top of the top cover 12, and a stepped groove 17 is provided inside the opening 16. The discharge cylinder 2 includes a cylinder body 21 and an extrusion orifice plate 22. The extrusion orifice plate 22 is movably engaged with the inside of the stepped groove 17. The bottom of the cylinder body 21... The cylinder 21 is provided with a stepped edge 23, which is movably engaged with the inner side of the stepped groove 17. A protruding edge 24 is fixedly connected to the outer side of the cylinder 21. A fixing bolt 25 located in the ring edge 15 is movably installed on the top of the protruding edge 24. By removing the fixing bolt 14, the top cover 12 can be lifted upward from the slot 13 to remove the top cover 12. Then, the fixing bolt 25 above the protruding edge 24 is removed, and the cylinder 21 is moved upward from the inner side of the ring edge 15. The extrusion plate 22, which is engaged between the stepped edge 23 and the stepped groove 17, is removed to facilitate cleaning and maintenance after use.

[0029] The stepped edge 23 is positioned above the extrusion perforated plate 22. The extrusion perforated plate 22 fits tightly against the inner wall of the stepped groove 17, ensuring the stability of the extrusion perforated plate 22 within the stepped groove 17. The design of the stepped edge 23 also makes the cylinder 21 easier and quicker to install and disassemble. Simply align the stepped edge 23 with the stepped groove 17 and gently push it in to complete the installation, greatly improving the ease of use and operability of the equipment.

[0030] Please see Figure 3 The output shaft of the pelletizing motor 5 is externally fixed with a pelletizing blade located inside the upper part of the housing 1. The pelletizing blade is positioned below the extrusion perforation plate 22, which can quickly and effectively cut the passing medicinal material particles, ensuring that the particle size is uniform and meets production requirements.

[0031] Working principle: The material is added into the cylinder 21 through the side opening of the cylinder 21. The piston is pushed down by the cylinder above the cylinder 21 to push the material through the extrusion plate 22 and squeeze it downward. The pelletizing motor 5 drives the pelletizing blade to rotate and pelletize the medicine material. The medicine particles are guided down along the guide ring plate 4 and rolled into a circle and fell onto the dispersing plate 39. The medicine particles roll down along the dispersing plate 39 and are dispersed to the outer perimeter of the outer shell 1. The air is drawn in by the fan 34, filtered and sent into the heating box 33. The heating wires inside the heating plate 35 in the heating box 33 heat the air and send it into the ring pipe 31 and blown into the outer shell 1 from the ring-shaped air blowing pipe 32. The hot air blown from the outside onto the dispersed medicine particles ensures that they are dried evenly. The medicine particles fall into the lower part of the outer shell 1 and are heated by the heating coil 36 to the inner wall of the outer shell 1, so that the medicine particles rolling down the inner wall of the outer shell 1 are heated again and thoroughly dried.

[0032] After prolonged use, by removing the fixing bolt 14, the top cover 12 can be disassembled upward from the slot 13, exposing the pelletizing blade at the bottom of the pelletizing motor 5. At the same time, by removing the fixing bolt 25 above the convex edge 24, the cylinder 21 can be disassembled upward from the inside of the ring edge 15. Subsequently, the extrusion plate 22, which is stuck between the stepped edge 23 and the stepped groove 17, can be removed, facilitating cleaning and maintenance. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A granulator for pharmaceutical production, comprising a housing (1), characterized in that: The top of the outer shell (1) is movably installed with symmetrically arranged discharge cylinders (2), the outside of the outer shell (1) is fixedly installed with a drying component (3), the upper inside of the outer shell (1) is fixedly installed with a guide ring plate (4), and the top of the outer shell (1) is fixedly installed with a pelletizing motor (5). The drying assembly (3) includes an annular tube (31) fixedly installed on the outside of the outer shell (1), a blower (32) located inside the outer shell (1) is fixedly connected to the inner side of the annular tube (31), a heating box (33) is fixedly installed on the outside of the outer shell (1), a fan (34) is fixedly installed on the top of the heating box (33), a heating plate (35) is fixedly installed inside the annular tube (31), the heating box (33) is connected to the annular tube (31), a heating coil (36) is fixedly installed on the lower part of the outer shell (1), a support frame (37) is fixedly installed at the bottom inside the outer shell (1), a column (38) is fixedly installed on the top of the support frame (37), and a dispersion plate (39) is fixedly installed on the top plate of the column (38).

2. A granulator for pharmaceutical production according to claim 1, characterized in that: The dispersing plate (39) is located centrally below the guide ring plate (4), and the dispersing plate (39) is cone-shaped.

3. A granulator for pharmaceutical production according to claim 1, characterized in that: The blower pipes (32) are arranged in a ring at equal intervals, and all the blower pipes (32) are located below the dispersion plate (39).

4. A granulator for pharmaceutical production according to claim 1, characterized in that: The heating coil (36) is attached to the outer wall of the outer shell (1). The heating coil (36) is arranged in a conical shape corresponding to the lower part of the outer shell (1). An insulation shell located outside the heating coil (36) is fixedly installed on the outside of the outer shell (1).

5. A granulator for pharmaceutical production according to claim 1, characterized in that: The outer casing (1) includes a shell (11) and a top cover (12). The top of the shell (11) is provided with a slot (13). The top cover (12) is movably engaged with the inside of the slot (13). A fixing bolt (14) located in the slot (13) is movably installed on the top of the top cover (12). A ring edge (15) arranged symmetrically on the left and right is fixedly installed on the top of the top cover (12). An opening (16) located inside the ring edge (15) is opened on the top of the top cover (12). The opening (16) The inner side of the discharge cylinder (2) is provided with a stepped groove (17); the discharge cylinder (2) includes a cylinder body (21) and an extrusion plate (22). The extrusion plate (22) is movably engaged with the inner side of the stepped groove (17). The bottom of the cylinder body (21) is provided with a stepped edge (23). The stepped edge (23) is movably engaged with the inner side of the stepped groove (17). The outer side of the cylinder body (21) is fixedly connected with a protruding edge (24). The top of the protruding edge (24) is movably installed with a fixing bolt (25) located in the ring edge (15).

6. A granulator for pharmaceutical production according to claim 5, characterized in that: The stepped edge (23) is positioned above the extrusion perforated plate (22).

7. A granulator for pharmaceutical production according to claim 1, characterized in that: The pelletizing motor (5) output shaft is fixedly mounted with a pelletizing blade located inside the housing (1) on the outside, and the pelletizing blade is located below the extrusion plate (22).

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