A filtering device for pharmaceutical and chemical refining

Abstract

The present invention relates to the field of pharmaceutical production, and discloses a filtering device for pharmaceutical chemical refining, including a base. An outer shell is fixedly installed on the base, and a filtering mechanism is arranged inside the outer shell. The filtering mechanism includes a sliding groove opened on the outer shell. A lifting plate controlled by a driving component to adjust its height is slidably installed in the sliding groove. A plurality of filtering plates are rotatably connected to the lifting plate, and the other ends of the filtering plates are rotatably connected to the outer shell. Filter holes are opened on the filtering plates. A control motor drives an eccentric abutting block to rotate. During the rotation of the eccentric abutting block, the contact point with the lifting plate is continuously changed, driving the lifting plate to continuously perform lifting motion, so that the filtering plates synchronously and continuously swing, causing the pharmaceutical particles on the filtering plates to roll back and forth, improving the filtering efficiency of the pharmaceutical particles, and realizing the multi-stage filtering and classification of the pharmaceutical particles while removing the powder impurities between the pharmaceutical particles.

Description

Technical Field

[0001] The invention relates to the technical field of medicine production, and more specifically to a filtering device used for pharmaceutical chemical refining. Background Art

[0002] In the process of drug production, filtering devices are usually required. The internal filtering media (such as filter screens) can remove impurities in the drugs to ensure the purity of the drugs. If these impurities follow into the subsequent drug production process, they may cause the purity of the drugs to decrease, affect the efficacy of the drugs or cause adverse reactions.

[0003] The existing Chinese patent with the announcement number CN105772394B discloses a filtering device for solid particles for medicine, which mainly includes a two-stage filtering device, wherein the first-stage filtering device includes a box, a conveying device, a wedge-shaped screen bucket, a screen, a chute, a loosening device, an electromagnet, a pulse current generating device, and a spring; the second-stage filtering device includes a feed port, an outer shell, a bracket, an inner shell, a three-layer filter screen, a spring sleeve, a stabilizing rod, a vibration motor, a base, a discharge pipe and a fan. The advantages and beneficial effects of the invention are: on the basis of the prior art, a filtering device for solid particles for medicine with high filtering efficiency, thorough separation, simple operation and high degree of automation is proposed.

[0004] Regarding the above and existing related technologies: In the existing solid pharmaceutical granule drug production process, the raw materials or auxiliary materials themselves contain a large amount of fine powder or particles. These fine powder or particles are easily mixed between the drug particles during the mixing and granulation processes, and the existing filtering devices are difficult to efficiently remove impurities between the drug particles. Summary of the invention

[0005] The present invention provides a filtering device for pharmaceutical chemical refining, which solves the technical problem in the related art that fine powder or particles in raw materials are easily mixed between drug particles during mixing, granulation and the like, and the existing filtering device is difficult to efficiently remove impurities between drug particles.

[0006] The present invention provides a filtering device for pharmaceutical and chemical refining, including a base, on which a housing is fixedly installed. A filtering mechanism is arranged inside the housing. The filtering mechanism includes a sliding groove opened on the housing. A lifting plate controlled by a driving component to adjust its height is slidably installed in the sliding groove. A plurality of filtering plates are rotatably connected to the lifting plate, and the other ends of the filtering plates are rotatably connected to the housing. Filter holes are opened on the filtering plates, and the diameters of the filter holes on the filtering plates gradually decrease from top to bottom. A plurality of openings cooperating with the filtering plates are opened on the housing, and a blocking plate controlled by a synchronization component to open and close is rotatably installed at the openings. The lifting plate drives the multiple filtering plates to continuously swing, continuously filter and classify pharmaceutical particles of different sizes, and accelerate the filtering and classification through an auxiliary component.

[0007] As a further optimized solution of the present invention, the driving component includes a mounting rod fixedly installed on the housing. A motor is fixedly installed on the mounting rod, and an eccentric abutting block is fixedly installed at the output end of the motor. The eccentric abutting block abuts against the lower bottom surface of the lifting plate.

[0008] As a further optimized solution of the present invention, the auxiliary component includes a plurality of channels opened on the lifting plate, and a pair of filtering side plates are fixedly installed in the channels.

[0009] As a further optimized solution of the present invention, the diameters of the filter holes on the filtering side plates are equal to those of the filter holes on the adjacent filtering plates.

[0010] As a further optimized solution of the present invention, the synchronization component includes a sliding frame slidably installed on the housing, and a baffle abutting against the blocking plate is arranged on the sliding frame.

[0011] As a further optimized solution of the present invention, the synchronization component further includes a plurality of grooves opened on the sliding frame. The baffle is slidably connected to the inner wall of the groove, and a first spring is fixedly installed on the baffle. The other end of the first spring is fixedly connected to the inner wall of the groove.

[0012] As a further optimized solution of the present invention, a dust reduction component is arranged on the output shaft of the motor. The dust reduction component includes a fixed block fixedly installed on the housing. A rotating rod is rotatably installed on the fixed block. The rotating rod is connected to the output shaft of the motor through a belt drive. A driving gear is fixedly installed on the rotating rod. A driven gear meshing with the driving gear is rotatably installed on the output shaft of the motor, and a fan blade is fixedly installed on the driven gear.

[0013] As a further optimized solution of the present invention, the transmission ratio between the output shaft of the motor and the fan blade is greater than 1.

[0014] As a further optimization scheme of the present invention, a blowing assembly is arranged in the shell, and the blowing assembly includes a pair of elastic blocks fixedly installed in the shell, an air pipe is fixedly installed on the elastic block, an air outlet piece is rotatably installed on the air pipe, and an air outlet is arranged on the air outlet piece.

[0015] As a further optimization scheme of the present invention, a uniformity component is arranged in the trachea, and the uniformity component includes a blocking block slidably installed in the trachea, a second spring is fixedly installed on the blocking block, and the end of the second spring away from the blocking block is against the inner wall of the trachea, a connecting rod is fixedly installed on the blocking block, and a plurality of blocking rings are fixedly installed on the connecting rod, and a one-way air intake valve is arranged on the elastic block.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention pours the drug particles into the housing from above. When the drug particles fall on the filter plate, the smaller drug particles and drug powder will fall along the filter holes to the filter plate of the lower level for step-by-step filtration, while the finer powder will fall on the bottom wall of the housing after passing through all the filter plates.

[0018] 2. The present invention controls the motor to drive the eccentric abutment block to rotate. During the rotation, the eccentric abutment block continuously changes the contact point with the lifting plate, driving the lifting plate to continuously perform lifting and lowering movements, thereby causing the filter plate to synchronously and continuously swing, causing the drug particles on the filter plate to roll back and forth, thereby improving the filtration efficiency of the drug particles and achieving multi-stage filtration and classification of the drug particles while removing powder impurities between the drug particles.

[0019] 3. In the present invention, when the filter plate is connected to one end of the lifting plate and is at a low point, the drug particles that meet the filter hole size will enter the channel along the filter side plate and enter the filter plate of the next level, thereby further improving the efficiency of the drug particles during filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the shell of the present invention after being cut open;

[0022] Figure 3 It is a schematic diagram of the overall structure of the synchronization component of the present invention;

[0023] Figure 4 It is a schematic diagram of the matching structure of the opening and the blocking plate of the present invention;

[0024] Figure 5 It is a schematic diagram of the matching structure of the eccentric abutment block and the lifting plate of the present invention;

[0025] Figure 6 It is a schematic diagram of the assembly structure of the filter plate and the lifting plate in the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the filter plate in the present invention after being extruded and deformed;

[0027] Figure 8 It is a schematic diagram of the assembly structure of the dust reduction component in the present invention;

[0028] Figure 9 It is a schematic diagram of the overall structure of the air blowing component in the present invention;

[0029] Figure 10 Schematic diagram of the overall structure of the uniform component of the present invention.

[0030] In the figure:

[0031] 10. Base; 11. Outer shell;

[0032] 20. Filter mechanism; 21. Slide groove; 22. Lifting plate; 23. Filter plate; 24. Opening; 25. Sealing plate;

[0033] 30. Driving component; 31. Installation rod; 32. Motor; 33. Eccentric abutting block;

[0034] 40. Auxiliary component; 41. Channel; 42. Filter side plate;

[0035] 50. Synchronization component; 51. Slide carriage; 52. Baffle; 53. Groove; 54. First spring;

[0036] 60. Dust reduction component; 61. Fixed block; 62. Rotating rod; 63. Driving gear; 64. Driven gear; 65. Fan blade;

[0037] 70. Air blowing component; 71. Elastic block; 72. Air pipe; 73. Air outlet part;

[0038] 80. Uniform component; 81. Plug; 82. Link rod; 83. Plug ring; 84. Second spring. Detailed implementation manners

[0039] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, the functions and arrangements of the elements discussed can be changed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described for some examples can also be combined in other examples.

[0040] As Figures 1 to 7As shown in the figure, a filtering device for pharmaceutical and chemical refining provided by an embodiment of the present invention includes a base 10. A housing 11 is fixedly installed on the base 10. A filtering mechanism 20 is arranged inside the housing 11. The filtering mechanism 20 includes a sliding groove 21 opened on the housing 11. A lifting plate 22 whose height is controlled by a driving component 30 is slidably installed in the sliding groove 21. A plurality of filter plates 23 are rotatably connected to the lifting plate 22. The other end of the filter plate 23 is rotatably connected to the housing 11. Filter holes are opened on the filter plate 23, and the diameters of the filter holes on the filter plate 23 gradually decrease from top to bottom. A plurality of openings 24 cooperating with the filter plates 23 are opened on the housing 11. A blocking plate 25 whose opening and closing are controlled by a synchronization component 50 is rotatably installed at the opening 24. The lifting plate 22 drives the plurality of filter plates 23 to continuously swing, continuously filters and classifies pharmaceutical particles of different sizes, and accelerates the filtering and classification through an auxiliary component 40.

[0041] The driving component 30 includes a mounting rod 31 fixedly installed on the housing 11. A motor 32 is fixedly installed on the mounting rod 31. An eccentric abutting block 33 is fixedly installed on the output end of the motor 32. The eccentric abutting block 33 abuts against the lower bottom surface of the lifting plate 22.

[0042] The auxiliary component 40 includes a plurality of channels 41 opened on the lifting plate 22. A pair of filter side plates 42 are fixedly installed in the channels 41.

[0043] The diameters of the filter holes on the filter side plates 42 are equal to the diameters of the filter holes on the adjacent filter plates 23.

[0044] The synchronization component 50 includes a sliding frame 51 slidably installed on the housing 11. A baffle 52 abutting against the blocking plate 25 is arranged on the sliding frame 51.

[0045] The synchronization component 50 further includes a plurality of grooves 53 opened on the sliding frame 51. The baffle 52 is slidably connected to the inner wall of the groove 53. A first spring 54 is fixedly installed on the baffle 52. The other end of the first spring 54 is fixedly connected to the inner wall of the groove 53.

[0046] The specific implementation of filtering the pharmaceutical particles in the present invention is achieved by the filtering mechanism 20. Specifically, the pharmaceutical particles are poured into the housing 11 from above. When the pharmaceutical particles fall on the filter plate 23, the smaller pharmaceutical particles and pharmaceutical powders will fall through the filter holes onto the lower-level filter plate 23 for step-by-step filtering. The finer powders will fall on the inner bottom wall of the housing 11 after passing through all the filter plates 23 and be discharged through the through holes. The motor 32 is controlled to drive the eccentric abutting block 33 to rotate. During the rotation of the eccentric abutting block 33, the contact point with the lifting plate 22 is continuously changed, driving the lifting plate 22 to continuously perform lifting movements, so that the filter plate 23 synchronously and continuously swings, causing the pharmaceutical particles on the filter plate 23 to roll back and forth, enabling the impurities mixed between the pharmaceutical particles to be efficiently filtered out, achieving the removal of powder impurities between the pharmaceutical particles and completing the multi-stage filtering and classification of the pharmaceutical particles at the same time.

[0047] To further improve the filtering efficiency, when the end of the filter plate 23 connected to the lifting plate 22 is at the low position, the pharmaceutical particles and impurities that meet the filter hole size will enter the channel 41 along the filter side plate 42 and then enter the next-level filter plate 23, thereby further improving the efficiency of the pharmaceutical particles during filtering.

[0048] At the same time, to ensure the high continuity of the filtering process, the carriage 51 is slid upward. The carriage 51 drives the baffle 52 to move together and releases the obstruction to the plugging plate 25. The pharmaceutical products accumulated on the filter plate 23 will push open the plugging plate 25, thereby discharging the materials. After the discharging is completed, the carriage 51 resets and cooperates with the baffle 52 to close the plugging plate 25 again. And when separate discharging is required, the baffle 52 can be slid separately. When the baffle 52 slides, it squeezes the first spring 54 and releases the restriction on the plugging plate 25 at the corresponding position, and then separate discharging can be carried out. After the discharging is completed, the baffle 52 is released, and the first spring 54 can drive it to reset. It should be noted that during discharging, the end of the filter plate 23 connected to the lifting plate 22 can be at the high position. The inclined filter plate 23 can further facilitate discharging.

[0049] It should be noted that as Figure 7 shown, during the swinging process of the filter plate 23, it will be squeezed by the lifting plate 22 and the housing 11 and undergo a certain degree of bending deformation. This deformation can squeeze out the pharmaceutical particles stuck in the filter holes, thereby avoiding filter hole blockage and maintaining a good filtering effect.

[0050] As Figure 8As shown, a dust reduction assembly 60 is provided on the output shaft of the motor 32. The dust reduction assembly 60 includes a fixed block 61 fixedly installed on the outer shell 11. A rotating rod 62 is rotatably installed on the fixed block 61. The rotating rod 62 is connected to the output shaft of the motor 32 through belt drive. A driving gear 63 is fixedly installed on the rotating rod 62. A driven gear 64 meshing with the driving gear 63 is rotatably installed on the output shaft of the motor 32. A fan blade 65 is fixedly installed on the driven gear 64. The transmission ratio between the output shaft of the motor 32 and the fan blade 65 is greater than 1.

[0051] In order to avoid the phenomenon of dust raising during the filtration of the pharmaceutical dust in the outer shell 11 due to the swing of the filter plate 23, which may affect the health of the staff, during the process of the motor 32 driving the eccentric abutting block 33 to rotate, its output shaft cooperates with the belt to drive the rotating rod 62 and the driving gear 63 to rotate. The driving gear 63 drives the driven gear 64 and the fan blade 65 meshing with it to rotate. When the fan blade 65 rotates, the air flow in the outer shell 11 flows downward, and the generated negative pressure guides the dust to move towards the bottom wall of the outer shell 11.

[0052] It should be noted that when the output shaft of the motor 32 rotates one week, the fan blade 65 will rotate multiple times, so that the eccentric abutting block 33 can ensure the wind force generated by the fan blade 65 while running at a low speed.

[0053] As Figure 2 and Figure 9 shown, a blowing assembly 70 is provided in the outer shell 11. The blowing assembly 70 includes a pair of elastic blocks 71 fixedly installed in the outer shell 11. An air pipe 72 is fixedly installed on the elastic block 71. An air outlet member 73 is rotatably installed on the air pipe 72. An air outlet is provided on the air outlet member 73. During the movement of the eccentric abutting block 33, it will continuously squeeze the elastic block 71. The air inside the hollow elastic block 71 will enter the air outlet member 73 along the air pipe 72. The air flow ejected from the air outlet member 73 can turn over the pharmaceutical particles accumulated at the filter plate 23 and the side wall of the outer shell 11, further improving the filtration efficiency. It should be noted that the rotatably arranged air outlet member 73 can adaptively move with the swing of the filter plate 23, continuously changing its position to blow and turn over the accumulated pharmaceutical particles, improving the effect of turning over the accumulated pharmaceutical particles.

[0054] As Figure 10As shown, a uniform component 80 is arranged in the air pipe 72. The uniform component 80 includes a plug block 81 slidably installed in the air pipe 72. A second spring 84 is fixedly installed on the plug block 81. One end of the second spring 84 away from the plug block 81 abuts against the inner wall of the air pipe 72. A connecting rod 82 is fixedly installed on the plug block 81, and a number of blocking rings 83 are fixedly installed on the connecting rod 82. A one-way intake valve is arranged on the elastic block 71 (this intake valve automatically opens when the elastic block 71 resumes its original state); after the air flow enters the air pipe 72, it will drive the plug block 81 to move and compress the second spring 84. When the plug block 81 moves, it cooperates with the connecting rod 82 to drive the blocking rings 83 to move together to release the seal of the air outlet member 73, and then the air can enter the air outlet member 73 synchronously, so that the air flows discharged from the air outlet members 73 at different height positions are uniform, maintaining a good turning effect.

[0055] Working principle: Pour the drug particles from above into the outer shell 11. When the drug particles fall on the filter plate 23, the smaller drug particles and drug powders will fall through the filter holes to the lower-level filter plate 23 for step-by-step filtration. The finer powders will fall on the inner bottom wall of the outer shell 11 after passing through all the filter plates 23 and be discharged through the through holes. Control the motor 32 to drive the eccentric abutting block 33 to rotate. During the rotation of the eccentric abutting block 33, the contact point with the lifting plate 22 is continuously changed, driving the lifting plate 22 to continuously move up and down, so that the filter plate 23 synchronously and continuously swings, causing the drug particles on the filter plate 23 to roll back and forth. When one end of the filter plate 23 connected to the lifting plate 22 is at the low point, the drug particles that meet the filter hole size will enter the channel 41 along the filter side plate 42 and enter the next-level filter plate 23. To ensure the high continuity of the filtration process, slide the carriage 51 upward. The carriage 51 drives the baffle 52 to move together and release the obstruction to the plugging plate 25. The drugs accumulated on the filter plate 23 will push open the plugging plate 25, thereby discharging the materials. After the discharging is completed, the carriage 51 resets and cooperates with the baffle 52 to close the plugging plate 25 again. And when separate discharging is required, the baffle 52 can be slid separately. When the baffle 52 slides, it squeezes the first spring 54 and releases the restriction on the plugging plate 25 at the corresponding position, and then separate discharging can be carried out. After the discharging is completed, release the baffle 52, and the first spring 54 can drive it to reset. It should be noted that during discharging, one end of the filter plate 23 connected to the lifting plate 22 can be at the high point. The inclined filter plate 23 can further facilitate discharging. During the process of driving the eccentric abutting block 33 to rotate, the output shaft of the motor 32 drives the rotating rod 62 and the driving gear 63 to rotate through the belt. The driving gear 63 drives the driven gear 64 and the fan blade 65 meshing with it to rotate. When the fan blade 65 rotates, the air flow in the outer shell 11 flows downward, generating a negative pressure to guide the dust to move towards the inner bottom wall of the outer shell 11. During the movement of the eccentric abutting block 33, it will continuously squeeze the elastic block 71. The air inside the hollow elastic block 71 will enter the air outlet part 73 along the air pipe 72. The air flow ejected from the air outlet part 73 can turn over the drug particles accumulated at the filter plate 23 and the side wall of the outer shell 11. After the air flow enters the air pipe 72, it will drive the plug block 81 to move and squeeze the second spring 84. When the plug block 81 moves, it cooperates with the connecting rod 82 to drive the plug ring 83 to move together to release the seal of the air outlet part 73. Then the air can enter the air outlet part 73 synchronously, making the air flows discharged from the air outlet parts 73 at different height positions uniform and maintaining a good turning effect. The above describes the embodiments of the present invention, but these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are only illustrative, not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A filtering device for pharmaceutical and chemical refining, comprising a base (10), wherein a housing (11) is fixedly installed on the base (10), and is characterized in that: A filtering mechanism (20) is provided inside the housing (11). The filtering mechanism (20) includes a sliding groove (21) formed in the housing (11). A lifting plate (22) whose height is controlled by a driving component (30) is slidably installed in the sliding groove (21). A plurality of filtering plates (23) are rotatably connected to the lifting plate (22). The other end of the filtering plate (23) is rotatably connected to the housing (11). Filter holes are formed in the filtering plate (23), and the diameters of the filter holes on the filtering plate (23) gradually decrease from top to bottom. A number of openings (24) that cooperate with the filtering plates (23) are formed in the housing (11). A blocking plate (25) whose opening and closing are controlled by a synchronization component (50) is rotatably installed at the opening (24). The lifting plate (22) drives the plurality of filtering plates (23) to continuously swing, continuously filter and classify medicine particles of different sizes, and accelerate the filtering and classification through an auxiliary component (40). During the swinging process of the filtering plate (23), it will be squeezed by the lifting plate (22) and the housing (11) and undergo a certain degree of bending deformation.

2. The filtering device for pharmaceutical and chemical refining according to claim 1, wherein: The driving component (30) includes a mounting rod (31) fixedly installed on the housing (11). A motor (32) is fixedly installed on the mounting rod (31). An eccentric abutting block (33) is fixedly installed on the output end of the motor (32). The eccentric abutting block (33) abuts against the lower bottom surface of the lifting plate (22).

3. The filtration device for pharmaceutical and chemical refining according to claim 2, wherein: The auxiliary component (40) includes a number of channels (41) formed in the lifting plate (22). A pair of filtering side plates (42) are fixedly installed in the channels (41).

4. A filtering device for pharmaceutical and chemical refining according to claim 3, characterized in that: The diameters of the filter holes on the filtering side plates (42) are equal to the diameters of the filter holes on the adjacent filtering plates (23).

5. A filtering device for pharmaceutical and chemical refining according to claim 4, characterized in that: The synchronization component (50) includes a sliding frame (51) slidably installed on the housing (11). A baffle (52) that abuts against the blocking plate (25) is provided on the sliding frame (51).

6. The filtering device for pharmaceutical and chemical refining according to claim 5, wherein: The synchronization component (50) further includes a number of grooves (53) formed in the sliding frame (51). The baffle (52) is slidably connected to the inner wall of the groove (53). A first spring (54) is fixedly installed on the baffle (52). The other end of the first spring (54) is fixedly connected to the inner wall of the groove (53).

7. A filtering device for pharmaceutical and chemical refining according to claim 6, characterized in that: A dust reduction component (60) is provided on the output shaft of the motor (32). The dust reduction component (60) includes a fixed block (61) fixedly installed on the housing (11). A rotating rod (62) is rotatably installed on the fixed block (61). The rotating rod (62) is connected to the output shaft of the motor (32) through a belt drive. A driving gear (63) is fixedly installed on the rotating rod (62). A driven gear (64) that meshes with the driving gear (63) is rotatably installed on the output shaft of the motor (32). A fan blade (65) is fixedly installed on the driven gear (64).

8. A filtering device for pharmaceutical and chemical refining according to claim 7, characterized in that: The transmission ratio between the output shaft of the motor (32) and the fan blade (65) is greater than 1.

9. The filtration device for pharmaceutical and chemical refining according to claim 8, wherein: A blowing component (70) is arranged inside the housing (11). The blowing component (70) includes a pair of elastic blocks (71) fixedly installed inside the housing (11). An air pipe (72) is fixedly installed on the elastic block (71). An air outlet component (73) is rotatably installed on the air pipe (72), and an air outlet is arranged on the air outlet component (73).

10. A filtering device for pharmaceutical and chemical refining according to claim 9, characterized in that: A uniform component (80) is arranged inside the air pipe (72). The uniform component (80) includes a blocking block (81) slidably installed inside the air pipe (72). A second spring (84) is fixedly installed on the blocking block (81). One end of the second spring (84) away from the blocking block (81) abuts against the inner wall of the air pipe (72). A connecting rod (82) is fixedly installed on the blocking block (81), and a number of blocking rings (83) are fixedly installed on the connecting rod (82). A one-way intake valve is arranged on the elastic block (71).

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