Filtering device for pharmaceutical and chemical refining

Abstract

The invention relates to the field of pharmaceutical production, and discloses a filtering device for pharmaceutical and chemical refining, which comprises a base, a shell is fixedly mounted on the base, a filtering mechanism is arranged in the shell, the filtering mechanism comprises a sliding chute formed in the shell, a lifting plate is slidably mounted in the sliding chute, the height of the lifting plate is controlled by a driving assembly, and the lifting plate is movably mounted on the base. A plurality of filtering plates are rotationally connected to the lifting plate, the other ends of the filtering plates are rotationally connected with the shell, filtering holes are formed in the filtering plates, the control motor drives the eccentric abutting block to rotate, the eccentric abutting block continuously changes the contact point with the lifting plate in the rotating process, and the lifting plate is driven to continuously ascend and descend. The filter plate swings synchronously and continuously, medicine particles on the filter plate roll back and forth, the filtering efficiency of the medicine particles is improved, and multi-stage filtering and classification of the medicine particles are completed while powder impurities among the medicine particles are removed.

Description

Technical Field

[0001] The invention relates to the technical field of pharmaceutical 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, comprising a base, a shell being fixedly mounted on the base, a filtering mechanism being arranged in the shell, the filtering mechanism comprising a slide groove provided on the shell, a lifting plate being slidably mounted in the slide groove, the height of which is controlled by a driving component, a plurality of filter plates being rotatably connected to the lifting plate, the other end of the filter plate being rotatably connected to the shell, filter holes being arranged on the filter plate, and the apertures of the filter holes on the filter plate decreasing step by step from top to bottom, a plurality of openings cooperating with the filter plates being arranged on the shell, a blocking plate whose opening and closing is controlled by a synchronous component being rotatably mounted at the opening, the lifting plate driving the plurality of filter plates to continuously swing, continuously filtering and grading pharmaceutical particles of different sizes, and accelerating the filtration and grading through auxiliary components.

[0007] As a further optimization scheme of the present invention, the driving assembly includes a mounting rod fixedly mounted on the outer shell, a motor is fixedly mounted on the mounting rod, an eccentric abutment block is fixedly mounted on the output end of the motor, and the eccentric abutment block abuts against the lower bottom surface of the lifting plate.

[0008] As a further optimization 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 optimization scheme of the present invention, the filter holes on the filter side plate have the same pore size as the filter holes on the adjacent filter plate.

[0010] As a further optimization solution of the present invention, the synchronization component includes a slide bracket slidably mounted on the housing, and a baffle plate abutting against the blocking plate is provided on the slide bracket.

[0011] As a further optimization scheme of the present invention, the synchronization component also includes a plurality of grooves opened on the slide, the baffle is slidably connected to the inner wall of the groove, a first spring is fixedly mounted on the baffle, and the other end of the first spring is fixedly connected to the inner wall of the groove.

[0012] As a further optimization scheme of the present invention, a dust reduction component is provided on the output shaft of the motor, and the dust reduction component includes a fixed block fixedly mounted on the outer shell, a rotating rod is rotatably mounted on the fixed block, the rotating rod is connected to the output shaft of the motor through a belt drive, a driving tooth is fixedly mounted on the rotating rod, a driven tooth meshing with the driving tooth is rotatably mounted on the output shaft of the motor, and a fan blade is fixedly mounted on the driven tooth.

[0013] As a further optimization solution of the present invention, the transmission ratio between the output shaft of the motor and the fan blades 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: 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.

[0017] 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.

[0018] 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

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the shell of the present invention after being cut open; Figure 3 It is a schematic diagram of the overall structure of the synchronization component of the present invention; Figure 4 It is a schematic diagram of the matching structure of the opening and the blocking plate of the present invention; Figure 5 It is a schematic diagram of the matching structure of the eccentric abutment block and the lifting plate of the present invention; Figure 6 It is a schematic diagram of the assembly structure of the filter plate and the lifting plate in the present invention; Figure 7It is a schematic diagram of the structure of the filter plate of the present invention after being subjected to extrusion deformation; Figure 8 It is a schematic diagram of the assembly structure of the dust suppression component of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the blowing assembly of the present invention; Fig.10 Schematic diagram of the overall structure of the uniform component of the present invention.

[0020] In the figure: 10. Base; 11. Housing; 20. Filter mechanism; 21. Slide; 22. Lifting plate; 23. Filter plate; 24. Opening; 25. Blocking plate; 30. driving assembly; 31. mounting rod; 32. motor; 33. eccentric abutment block; 40. Auxiliary components; 41. Channel; 42. Filter side plate; 50. Synchronous assembly; 51. Slide; 52. Baffle; 53. Groove; 54. First spring; 60. dust suppression assembly; 61. fixed block; 62. rotating rod; 63. driving gear; 64. driven gear; 65. fan blade; 70. Blowing assembly; 71. Elastic block; 72. Air pipe; 73. Air outlet piece; 80. Uniform assembly; 81. Block; 82. Connecting rod; 83. Blocking ring; 84. Second spring. DETAILED DESCRIPTION

[0021] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0022] like Figures 1 to 7As shown, a filtering device for pharmaceutical and chemical refining provided by an embodiment of the present invention comprises a base 10, a shell 11 is fixedly mounted on the base 10, a filtering mechanism 20 is arranged in the shell 11, the filtering mechanism 20 comprises a slide groove 21 provided on the shell 11, a lifting plate 22 whose height is controlled by a driving component 30 is slidably mounted in the slide 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 shell 11, filter holes are provided on the filter plate 23, and the apertures of the filter holes on the filter plate 23 decrease step by step from top to bottom, a plurality of openings 24 cooperating with the filter plates 23 are provided on the shell 11, a blocking plate 25 whose opening and closing is controlled by a synchronization component 50 is rotatably mounted at the opening 24, the lifting plate 22 drives the plurality of filter plates 23 to swing continuously, continuously filter and classify drug particles of different sizes, and accelerate the filtering and grading through the auxiliary component 40.

[0023] The driving assembly 30 includes a mounting rod 31 fixedly mounted on the housing 11 , a motor 32 fixedly mounted on the mounting rod 31 , an eccentric abutment block 33 fixedly mounted on the output end of the motor 32 , and the eccentric abutment block 33 abuts against the lower bottom surface of the lifting plate 22 .

[0024] The auxiliary component 40 includes a plurality of channels 41 opened on the lifting plate 22 , and a pair of filtering side plates 42 are fixedly installed in the channels 41 .

[0025] The filter holes on the filter side plate 42 have the same aperture as the filter holes on the adjacent filter plate 23 .

[0026] The synchronization assembly 50 includes a slide 51 slidably mounted on the housing 11 , and a baffle 52 abutting against the blocking plate 25 is disposed on the slide 51 .

[0027] The synchronization component 50 also includes a plurality of grooves 53 formed on the slide 51 . The baffle 52 is slidably connected to the inner wall of the groove 53 . A first spring 54 is fixedly mounted on the baffle 52 . The other end of the first spring 54 is fixedly connected to the inner wall of the groove 53 .

[0028] The specific implementation of filtering drug particles of the present invention relies on the filtering mechanism 20. Specifically, the drug particles are poured into the outer shell 11 from above. When the drug particles fall on the filter plate 23, the smaller drug particles and drug powder will fall along the filter holes to the lower filter plate 23 for step-by-step filtration, while the finer powder 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. The control motor 32 drives the eccentric abutment block 33 to rotate. The eccentric abutment block 33 continuously changes the contact point with the lifting plate 22 during the rotation, driving the lifting plate 22 to continuously perform lifting and lowering movements, so that the filter plate 23 is synchronously and continuously swung, and the drug particles on the filter plate 23 roll back and forth, so that the impurities mixed between the drug particles can be efficiently filtered out, thereby achieving the removal of powder impurities between the drug particles while completing the multi-stage filtration and classification of the drug particles.

[0029] In order to further improve the filtration efficiency, when the filter plate 23 is connected to one end of the lifting plate 22 and is at a low point, the drug particles and impurities 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, thereby further improving the efficiency of the drug particles during filtration.

[0030] At the same time, in order to ensure that the filtering process can be carried out with high continuity, the slide 51 is slid upward, and the slide 51 drives the baffle 52 to move together and release the obstruction to the blocking plate 25. The medicines gathered on the filter plate 23 will push the blocking plate 25 away, thereby discharging. After the discharging is completed, the slide 51 is reset and cooperates with the baffle 52 to close the blocking plate 25 again, and when it is necessary to discharge the material separately, the baffle 52 can be slid separately. When the baffle 52 slides, it squeezes the first spring 54 and releases the restriction of the blocking plate 25 at the corresponding position, so that the material can be discharged separately. 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 when discharging, the filter plate 23 can be connected to one end of the lifting plate 22 at a high point, and the inclined filter plate 23 can further facilitate the discharging.

[0031] It should be noted that if Figure 7 As shown, the filter plate 23 will be squeezed by the lifting plate 22 and the shell 11 during the swinging process and will bend and deform to a certain extent. This deformation can squeeze out the drug particles stuck in the filter holes, thereby avoiding clogging of the filter holes and maintaining a good filtering effect.

[0032] like Figure 8As shown, a dust reduction component 60 is provided on the output shaft of the motor 32, and the dust reduction component 60 includes a fixed block 61 fixedly mounted on the outer shell 11, a rotating rod 62 is rotatably mounted on the fixed block 61, and the rotating rod 62 is connected to the output shaft of the motor 32 through a belt drive, a driving tooth 63 is fixedly mounted on the rotating rod 62, and a driven tooth 64 meshing with the driving tooth 63 is rotatably mounted on the output shaft of the motor 32, and a fan blade 65 is fixedly mounted on the driven tooth 64, and the transmission ratio between the output shaft of the motor 32 and the fan blade 65 is greater than 1.

[0033] In order to prevent the dust in the housing 11 from being raised due to the swing of the filter plate 23 during filtration, which may affect the health of the staff, the output shaft of the motor 32 cooperates with the belt to drive the rotating rod 62 and the driving tooth 63 to rotate while driving the eccentric abutment block 33 to rotate. The driving tooth 63 drives the driven tooth 64 and the fan blade 65 meshing with it to rotate. When the fan blade 65 rotates, the air flow in the housing 11 flows downward, and the negative pressure generated guides the dust to move toward the bottom wall of the housing 11.

[0034] It should be noted that the fan blades 65 will rotate multiple times when the output shaft of the motor 32 rotates one circle, so that the eccentric abutment block 33 can ensure the wind force generated by the fan blades 65 while running at a low speed.

[0035] like Figure 2 and Fig. 9 As shown, a blowing assembly 70 is provided in the shell 11, and the blowing assembly 70 includes a pair of elastic blocks 71 fixedly installed in the shell 11, an air pipe 72 is fixedly installed on the elastic block 71, and an air outlet piece 73 is rotatably installed on the air pipe 72, and an air outlet is provided on the air outlet piece 73; the eccentric abutment block 33 will continuously squeeze the elastic block 71 during movement, and the internal air of the hollow elastic block 71 will enter the air outlet piece 73 along the air pipe 72, and the air flow ejected by the air outlet piece 73 can flip the drug particles accumulated on the filter plate 23 and the side wall of the shell 11, thereby further improving the filtration efficiency; it should be noted that the rotatably arranged air outlet piece 73 can adaptively move with the swing of the filter plate 23, continuously change its position to blow and flip the accumulated drug particles, thereby improving the effect of flipping the accumulated drug particles.

[0036] like Fig.10As shown, a uniform component 80 is provided in the air pipe 72, and the uniform component 80 includes a blocking block 81 slidably installed in the air pipe 72, and a second spring 84 is fixedly installed on the blocking block 81, and the end of the second spring 84 away from the blocking block 81 is against the inner wall of the air pipe 72, and a connecting rod 82 is fixedly installed on the blocking block 81, and a plurality of blocking rings 83 are fixedly installed on the connecting rod 82, and a one-way air intake valve is provided on the elastic block 71 (when the elastic block 71 is restored, this air intake valve automatically opens); after the air flow enters the air pipe 72, it will drive the blocking block 81 to move and squeeze the second spring 84, and when the blocking block 81 moves, it cooperates with the connecting rod 82 to drive the blocking ring 83 to move together to release the seal of the air outlet piece 73, and then the air can synchronously enter the air outlet piece 73, so that the airflow discharged from the air outlet pieces 73 at different heights is uniform, and a good flipping effect is maintained.

[0037] Working principle: Pour the drug particles into the housing 11 from above. When the drug particles fall on the filter plate 23, the smaller drug particles and drug powder will fall along the filter holes to the lower filter plate 23 for step-by-step filtration, while the finer powder 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 control motor 32 drives the eccentric abutment block 33 to rotate. The eccentric abutment block 33 continuously changes the contact point with the lifting plate 22 during the rotation process, driving the lifting plate 22 to continuously perform lifting and lowering movements, so that the filter plate 23 can be synchronously and continuously swung, causing the drug particles on the filter plate 23 to roll back and forth. When the filter plate 23 is connected to one end of the lifting plate 22 and is at a 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 filter plate 23 of the next level. In order to ensure that the filtering process can be carried out with high continuity, the slide 51 is slid upward, and the slide 51 drives the baffle 52 to move together and release the obstruction to the blocking plate 25. The drugs accumulated on the filter plate 23 will push the blocking plate 25 open, thereby discharging. After the discharging is completed, the slide 51 is reset and cooperates with the baffle 52 to close the blocking plate 25 again. When it is necessary to discharge the material separately, the baffle 52 can be slid separately, and the baffle 52 squeezes the first spring when sliding. 54 and unlock the restriction of the blocking plate 25 at the corresponding position, then the material can be discharged separately. After the discharging is completed, the baffle plate 52 is loosened, and the first spring 54 can drive it to reset. It should be noted that when discharging, the filter plate 23 can be connected to one end of the lifting plate 22 at a high point. The inclined filter plate 23 can further facilitate the discharging. In the process of driving the eccentric abutment block 33 to rotate, the output shaft of the motor 32 cooperates with the belt to drive the rotating rod 62 and the driving tooth 63 to rotate. The driving tooth 63 drives the driven tooth 64 and the fan blade 65 engaged therewith to rotate. When the fan blade 65 rotates, the airflow in the housing 11 flows downward, and the negative pressure generated guides the dust outward. The eccentric abutment block 33 moves at the inner bottom wall of the shell 11, and the elastic block 71 is constantly squeezed during the movement. The internal air of the hollow elastic block 71 will enter the air outlet 73 along the air pipe 72. The airflow ejected from the air outlet 73 can flip the drug particles accumulated on the filter plate 23 and the side wall of the shell 11. After the airflow enters the air pipe 72, it will drive the block 81 to move and squeeze the second spring 84. When the block 81 moves, it cooperates with the connecting rod 82 to drive the blocking ring 83 to move together to unlock the seal of the air outlet 73. Then the air can enter the air outlet 73 synchronously, so that the airflow discharged from the air outlet 73 at different heights is uniform, maintaining a good flipping effect. The above describes the embodiment of the present invention, but the present embodiment is not limited to the above specific implementation. The above specific implementation is only illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, which are all within the protection of the present embodiment.

Claims

1. A filtering device for pharmaceutical and chemical refining, comprising a base (10), on which a housing (11) is fixedly mounted, characterized in that: A filter mechanism (20) is arranged in the housing (11), and the filter mechanism (20) comprises a slide groove (21) provided on the housing (11), a lifting plate (22) whose height is controlled by a driving component (30) is slidably installed in the slide 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 provided on the filter plate (23), and the filter holes on the filter plate (23) have apertures decreasing from top to bottom, a plurality of openings (24) cooperating with the filter plates (23) are provided on the housing (11), a blocking plate (25) whose opening and closing is 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 swing continuously, and continuously filters and classifies the drug particles of different sizes, and accelerates the filtering and classification through the auxiliary component (40).

2. A filtering device for pharmaceutical and chemical refining according to claim 1, characterized in that: The driving assembly (30) comprises a mounting rod (31) fixedly mounted on the housing (11), a motor (32) fixedly mounted on the mounting rod (31), an eccentric abutment block (33) fixedly mounted on the output end of the motor (32), and the eccentric abutment block (33) abuts against the lower bottom surface of the lifting plate (22).

3. A filtering device for pharmaceutical and chemical refining according to claim 2, characterized in that: The auxiliary component (40) comprises a plurality of channels (41) opened on the lifting plate (22), and 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 filter holes on the filter side plate (42) have the same aperture as the filter holes on the adjacent filter plate (23).

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

6. A filtering device for pharmaceutical and chemical refining according to claim 5, characterized in that: The synchronization component (50) further comprises a plurality of grooves (53) formed on the slide frame (51), the baffle plate (52) being slidably connected to the inner wall of the groove (53), a first spring (54) being fixedly mounted on the baffle plate (52), and the other end of the first spring (54) being 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 assembly (60) is arranged on the output shaft of the motor (32), and the dust reduction assembly (60) comprises a fixed block (61) fixedly mounted on the housing (11), a rotating rod (62) rotatably mounted on the fixed block (61), the rotating rod (62) being connected to the output shaft of the motor (32) via a belt drive, a driving tooth (63) being fixedly mounted on the rotating rod (62), a driven tooth (64) meshing with the driving tooth (63) being rotatably mounted on the output shaft of the motor (32), and a fan blade (65) being fixedly mounted on the driven tooth (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 blades (65) is greater than 1.

9. A filtering device for pharmaceutical and chemical refining according to claim 8, characterized in that: An air blowing assembly (70) is arranged in the housing (11), and the air blowing assembly (70) comprises a pair of elastic blocks (71) fixedly mounted in the housing (11), an air pipe (72) fixedly mounted on the elastic blocks (71), an air outlet member (73) rotatably mounted on the air pipe (72), and an air outlet port is arranged on the air outlet member (73).

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

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