A dust removal and filtration device for pharmaceutical processing

Abstract

The present invention relates to the technical field of solid waste pollution treatment, and in particular to a dust removal and filtration device for pharmaceutical processing, including a feed pipe, a filtration box, and a discharge pipe: Two pipe bodies are symmetrically arranged on both sides of the lower end of the filtration box, and the two pipe bodies respectively control air intake and air outlet; The filter cloth passes through the slot holes, and the filter cloth is in mutual contact with the inner wall of the slot holes. An electric telescopic rod is further arranged at the upper end of the movable frame; In the initial state, the movable frame is located at a position close to the upper end of the frame, and the movable frame gradually moves downward from the upper end. The present invention adopts a multi-channel filter cloth made of a loose material and is vertically arranged in a linear array. After the powder falls, it comes into contact with the filter cloth on both sides under the action of air flow. Among them, a movable frame capable of lifting is arranged in the middle of the filter cloth. The initial position of the movable frame is located at a position close to the upper side. During the continuous separation of the powder, the position of the movable frame drops, so that each area on the side of the filter cloth can evenly adsorb the powder.

Description

Technical Field

[0001] The invention relates to the technical field of solid waste pollution treatment, in particular to a dust removal and filtering device for pharmaceutical processing. Background Art

[0002] Some chemicals used in the drug production process, such as heavy metals, may enter the air, causing air pollution and affecting the ecological balance of the air environment.

[0003] In order to improve the adsorption effect of tablet powder in the existing technology, the flow of gas is used to drive the powder to the filter bag. Finally, after these filter bags come into contact with the filter bags, the powder is adsorbed by the filter bags. Finally, these filter bags are processed collectively to collect the tablet powder.

[0004] However, the existing technology adopts multiple vertical filters to be evenly distributed, so that the powder can be effectively adsorbed on the surface of the filter bag when passing through it. However, there is a problem, that is, since the powder has a certain mass, when it falls, it will fall on the bottom area of the vertically arranged filter bag, causing the filter bag to achieve all-round adsorption and filtration as a whole, thereby reducing the adsorption efficiency of the filter cloth. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a dust removal and filtering device for pharmaceutical processing.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] Design a dust removal and filtration device for pharmaceutical processing, including a feed pipe, a filter box, and a discharge pipe:

[0008] The lower end of the filter box is symmetrically provided with tube bodies on both sides, and the two tube bodies control the air intake and the air outlet respectively;

[0009] A frame is placed at the bottom of the filter box, and a plurality of filter cloths are detachably arranged on the inner side of the frame along the long side direction, with a gap provided between two adjacent filter cloths. A movable frame is slidably provided on the inner side of the frame, and a plurality of slots are evenly provided on the movable frame. The filter cloths pass through the slots, and the filter cloths fit into the inner walls of the slots. An electric telescopic rod is also provided on the upper end of the movable frame;

[0010] In the initial state, the movable frame is located near the upper end of the frame, and the movable frame gradually moves downward from the upper end.

[0011] Preferably, a connecting block is installed at the bottom of the slot, and baffles are symmetrically hinged to the bottom of the connecting block. The bottoms of the two baffles are in contact with the bottom of the filter box, and the baffles fit the filter cloth.

[0012] Preferably, the feed pipe and the discharge pipe are respectively arranged on both sides of the filter box. On both inner sides of the filter box, a first connecting plate and a second connecting plate are respectively arranged. One end of the first connecting plate is obliquely connected to the lower edge of the feed pipe, and one end of the second connecting plate is obliquely connected to the lower edge of the discharge pipe.

[0013] Preferably, a stepper motor is installed on the outer side of the filter box. A rotating cylinder is rotatably arranged on the inner side of the filter box, and the rotating cylinder is connected to the output shaft of the stepper motor. The rotating cylinder is located between the first connecting plate and the second connecting plate.

[0014] Preferably, a plurality of second tooth grooves are evenly formed at the lower end of the first connecting plate, and a plurality of first tooth grooves are evenly formed at the upper end position of the second connecting plate. The size of the second tooth grooves matches the size of the first tooth grooves. A plurality of paddles are evenly installed on the circumferential position of the rotating cylinder, and the paddles are arranged in an alternating manner with the first tooth grooves and the second tooth grooves.

[0015] Preferably, the top of the electric telescopic rod is fixedly connected to the lower end of the second connecting plate, and the electric telescopic rod is in a vertical state during the entire movement process.

[0016] Preferably, two bevel gears are symmetrically arranged at a position near the bottom of the inner side of the first tooth groove.

[0017] Preferably, a rotating shaft is arranged at a position near the bottom of the inner side of the first tooth groove, and a plurality of brushes are evenly installed on the outer side of the rotating shaft.

[0018] Preferably, the brush is a hard brush.

[0019] Preferably, the brush is located inside the first tooth groove.

[0020] A dust removal and filtration device for pharmaceutical processing proposed by the present invention has the beneficial effects that: in this dust removal and filtration device for pharmaceutical processing, multiple filter cloths made of loose materials are arranged vertically in a linear array. After the powder falls, it comes into contact with the filter cloths on both sides under the action of air flow. Among them, a movable frame capable of lifting is arranged in the middle of the filter cloths. The initial position of the movable frame is located near the upper position. During the continuous separation of the powder, the position of the movable frame drops, so that each area on the side of the filter cloth can evenly adsorb the powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of a dust removal and filtration device for pharmaceutical processing proposed by the present invention.

[0022] Figure 2 is a schematic structural diagram of another perspective of a dust removal and filtration device for pharmaceutical processing proposed by the present invention.

[0023] Figure 3 Schematic diagram of the positional structure of the filter cloth and the frame of a dust removal and filtration device for pharmaceutical processing proposed by the present invention.

[0024] Figure 4 Schematic diagram of the structure of the frame of a dust removal and filtration device for pharmaceutical processing proposed by the present invention.

[0025] Figure 5 Schematic diagram of the structure of the baffle of a dust removal and filtration device for pharmaceutical processing proposed by the present invention.

[0026] Figure 6 Schematic diagram of the structure of the rotating cylinder and the paddle of a dust removal and filtration device for pharmaceutical processing proposed by the present invention.

[0027] Figure 7 Schematic diagram of the positional structure of the moving frame and the first tooth groove of a dust removal and filtration device for pharmaceutical processing proposed by the present invention.

[0028] In the figure: feed pipe 1, filter box 2, paddle 3, rotating cylinder 4, discharge pipe 5, first connecting plate 6, second connecting plate 7, pipe body 8, frame 9, filter cloth 10, first tooth groove 11, second tooth groove 12, moving frame 13, slot hole 14, stepping motor 15, electric telescopic rod 16, connecting block 17, baffle 18, rotating shaft 19, brush 20, bevel gear 21. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example 1, referring to Figures 1-4 , a dust removal and filtration device for pharmaceutical processing, including a feed pipe 1, a filter box 2, and a discharge pipe 5. Two pipe bodies 8 are symmetrically arranged on both sides of the lower end of the filter box 2, and the two pipe bodies 8 respectively control air intake and air outlet.

[0031] A frame 9 is placed at the bottom of the filter box 2. A plurality of filter cloths 10 are detachably arranged along the long side direction inside the frame 9. A gap is provided between two adjacent filter cloths 10. A moving frame 13 is slidably arranged inside the frame 9. A plurality of slot holes 14 are evenly formed on the moving frame 13. The filter cloth 10 passes through the slot holes 14, and the inner wall of the filter cloth 10 is in mutual contact with the inner wall of the slot holes 14. An electric telescopic rod 16 is further arranged at the upper end of the moving frame 13. In the initial state, the moving frame 13 is located at a position close to the upper end of the frame 9, and the moving frame 13 gradually moves downward from the upper end.

[0032] A box door is hinged on one side of the filter box 2. When starting to separate and filter the powder, the box door is closed. When the separation work is completed, the box door is opened to collect the internal filter cloth 10.

[0033] The frame 9 can be detachably placed at the bottom of the filter box 2. Multiple filter cloths 10 are vertically arranged along the long side direction of the frame 9, and gaps are provided between adjacent two filter cloths 10. Pipe bodies 8 are respectively arranged on both sides of the filter box 2. One of the pipe bodies 8 is used for air inflow, and the other is used for air outflow. In this way, under the action of the air flow, after the powder falls, it will move between the filter cloths 10. When the powder contacts the filter cloth 10, the powder will be adsorbed on the filter cloth 10, completing the separation of the powder in the air flow.

[0034] However, due to the fact that the powder has a certain weight, part of the powder will fall to the bottom position of the filter cloth 10, resulting in very little tablet powder adsorbed on the upper part of the filter cloth 10. Most of the powder accumulates at the lower end position of the filter cloth 10, reducing the adsorption and separation efficiency of the filter cloth 10.

[0035] Therefore, a movable frame 13 that can move up and down is arranged inside the frame 9. The slot holes 14 uniformly opened on the movable frame 13 are matched with the positions of the filter cloths 10, and the filter cloths 10 pass through the slot holes 14. The initial position of the movable frame 13 is located at the upper part of the frame 9. In this way, there is a gap between the frame 9 and the inner wall of the filter box 2, and the air flow can pass through above the movable frame 13. After the powder falls, it is adsorbed on the outer surface of the loose filter cloth 10 along with the air flow, and the powder will accumulate on the filter cloth 10 above the movable frame 13 at this time. Due to the shielding of the movable frame 13, the powder will not contact the lower filter cloth 10 at this time. As the separation process progresses, by adjusting the length of the electric telescopic rod 16, the position of the movable frame 13 is adjusted downward. At this time, the outer surface of the lower filter cloth 10 will be slowly exposed, so that the powder contacts the lower filter cloth 10 area through the circulating air flow, and the powder is intercepted from the air flow. In this way, the outer surface of the filter cloth 10 can be evenly contacted with the powder in this way.

[0036] Example 2, refer to Figure 5 , the difference between this embodiment and Embodiment 1 is that a connecting block 17 is installed at the bottom of the slot hole 14. Symmetrically hinged at the bottom of the connecting block 17 are baffles 18. The bottoms of both baffles 18 are in contact with the bottom of the filter box 2, and the baffles 18 are attached to the filter cloth 10.

[0037] The filter cloth 10 is detachably fixed on the frame 9. When the filter cloth 10 is in a taut state, the holes on its outer surface will become narrow, and the adsorption effect on the powder will also decrease. When the filter cloth 10 is in a relaxed state, when the air flow passes through, it will drive the filter cloth 10 to swing. In this way, the gap between adjacent two filter cloths 10 will become smaller, or even the problem of overlap will occur.

[0038] To this end, a connecting block 17 is vertically connected to both sides of each slot 14, and a symmetrical baffle 18 is provided at the lower end of the connecting block 17. When the movable frame 13 descends, the bottoms of the two baffles 18 contact the bottom of the filter box 2. In this way, the angle between the two baffles 18 will be stretched, and the range covering the outer surface of the filter cloth 10 will be increased, so that the filter cloth 10 can remain relaxed and avoid the problem of swinging and overlapping.

[0039] Example 3, reference Figures 1-2 The difference between this embodiment and embodiment 1 and embodiment 2 is that the feed pipe 1 and the discharge pipe 5 are respectively arranged on both sides of the filter box 2, and a first connecting plate 6 and a second connecting plate 7 are respectively provided on both sides of the inside of the filter box 2, wherein one end of the first connecting plate 6 is obliquely connected to the lower edge of the feed pipe 1, and one end of the second connecting plate 7 is obliquely connected to the lower edge of the discharge pipe 5.

[0040] A stepper motor 15 is installed on the outside of the filter box 2. A rotating drum 4 is rotatably arranged on the inside of the filter box 2, and the rotating drum 4 is connected to the output shaft of the stepper motor 15. The rotating drum 4 is located between the first connecting plate 6 and the second connecting plate 7. The lower end of the first connecting plate 6 is evenly provided with a plurality of second tooth grooves 12, and the upper end of the second connecting plate 7 is evenly provided with a plurality of first tooth grooves 11. The size of the second tooth grooves 12 matches the size of the first tooth grooves 11. Figure 6 A plurality of paddles 3 are evenly installed on the circumferential position of the rotating drum 4. The paddles 3 are staggered with the first tooth groove 11 and the second tooth groove 12. The top of the electric telescopic rod 16 is fixedly connected to the lower end of the second connecting plate 7, and the electric telescopic rod 16 is in a vertical state during the entire movement process.

[0041] Tablet powder often appears at the edges and corners of the tablets, which are easily damaged. During the transportation of the tablets, these powders will be scattered in various corners of the equipment, causing inconvenience in cleaning.

[0042] To this end, the tablets are passed from the feed pipe 1 into the filter box 2 and slid from the first connecting plate 6 to the drum 4. Since a second tooth groove 12 is provided at the end of the first connecting plate 6, when the tablets enter the second tooth groove 12 area, as the drum 4 rotates, the paddles 3 on the outside thereof are driven to rotate clockwise, transferring the tablets from the first connecting plate 6 to the second connecting plate 7 on the other side. The tablets will be between two adjacent paddles 3. When these paddles 3 pass through the first tooth groove 11 on the second connecting plate 7, the tablets will be transferred from the paddles 3 to the first tooth groove 11 area. As the second connecting plate 7 is tilted, the tablets roll down from the first tooth groove 11 and are moved out of the discharge pipe 5. In this process, the collision generated by the contact with the tablets will shake off the powder adhering to the tablets and the powder at the damaged part of the tablets.

[0043] Example 4, reference Figure 7 In this embodiment, the difference from Embodiment 1, Embodiment 2, and Embodiment 3 is that two tapered teeth 21 are symmetrically arranged at positions near the bottom of the inner side of the first tooth groove 11, a rotating shaft 19 is arranged at a position near the bottom of the inner side of the first tooth groove 11, several brushes 20 are evenly installed on the outer side of the rotating shaft 19, the brushes 20 are hard brushes, and the brushes 20 are located inside the first tooth groove 11.

[0044] Since the powder has a certain adhesiveness, when the powder is on the dial 3, a little powder will adhere to the dial 3.

[0045] Therefore, tapered teeth 21 are symmetrically arranged at the end positions of the first tooth groove 11. When the dial 3 comes into contact with the tapered teeth 21 during the process of transferring the tablets, a certain degree of jitter will occur when the dial 3 passes through the tapered teeth 21, and the powder adhering to the dial 3 is processed by means of this jitter. At the same time, brushes 20 are also arranged inside the first tooth groove 11. When the tablets roll off the dial 3, the tablets will not come into contact with the brushes 20. Only when the dial 3 enters the inner side of the first tooth groove 11 will it come into contact with the brushes 20. During the process of driving the brushes 20 to rotate, the powder at the end position of the dial 3 will also be scraped off.

[0046] The working principle of this device is as follows:

[0047] A door is hinged on one side of the filter box 2. When starting to separate and filter the powder, the door is closed. When the separation work is completed, the door is opened to collect the internal filter cloth 10.

[0048] The frame 9 is detachably placed at the bottom of the filter box 2. Multiple filter cloths 10 are vertically arranged along the long side direction of the frame 9, and gaps are provided between adjacent two filter cloths 10. Pipe bodies 8 are respectively arranged on both sides of the filter box 2. One of the pipe bodies 8 is used for air inflow, and the other is used for air outflow. In this way, under the action of the air flow, the powder will move between the filter cloths 10 after falling. When the powder comes into contact with the filter cloths 10, the powder will be adsorbed on the filter cloths 10, and the separation work of the powder in the air flow is completed.

[0049] However, since the powder has a certain weight, part of the powder will fall to the bottom position of the filter cloth 10, resulting in very little tablet powder adsorbed on the upper part of the filter cloth 10. Most of the powder accumulates at the lower end position of the filter cloth 10, making the adsorption and separation efficiency of the filter cloth 10 decrease.

[0050] For this purpose, a movable frame 13 that can move up and down is arranged inside the frame 9. The slot holes 14 evenly opened on the movable frame 13 are matched with the position of the filter cloth 10, and the filter cloth 10 passes through the slot holes 14. The initial position of the movable frame 13 is located at the upper part of the frame 9. In this way, there is a gap between the frame 9 and the inner wall of the filtration box 2, and the air flow can pass through from above the movable frame 13. After the powder falls, it is adsorbed on the outer surface of the loose filter cloth 10 along with the air flow, and the powder will gather on the filter cloth 10 above the movable frame 13 at this time. Due to the blockage of the movable frame 13, the powder will not contact the lower filter cloth 10 at this time. As the separation process proceeds, by adjusting the length of the electric telescopic rod 16, the position of the movable frame 13 is adjusted downward. At this time, the outer surface of the lower filter cloth 10 will be slowly exposed. In this way, the powder is brought into contact with the area of the lower filter cloth 10 through the circulating air flow, and the powder is intercepted from the air flow. In this way, the outer surface of the filter cloth 10 can be evenly contacted with the powder in this way.

[0051] The filter cloth 10 is detachably fixed on the frame 9. When the filter cloth 10 is in a taut state, the holes on its outer surface will become narrow, and the adsorption effect on the powder will also decrease. When the filter cloth 10 is in a relaxed state, when the air flow passes through, it will drive the filter cloth 10 to swing. In this way, the gap between two adjacent filter cloths 10 will become smaller or even overlap.

[0052] For this purpose, connecting blocks 17 are vertically connected to both sides of each slot hole 14, and symmetrical baffles 18 are arranged at the lower ends of the connecting blocks 17. When the movable frame 13 descends, the bottoms of the two baffles 18 contact the bottom of the filtration box 2. In this way, the angle between the two baffles 18 will be widened, and the range covering the outer surface of the filter cloth 10 will increase, so that the filter cloth 10 can avoid the problem of swinging and overlapping while remaining in a relaxed state.

[0053] The powder of the tablets often appears at the corners where the tablets are easily damaged. When the tablets are being transported, this powder will be scattered in all corners of the equipment, bringing inconvenience to cleaning.

[0054] For this purpose, the tablets enter the filter box 2 from the feed pipe 1 and slide to the rotating cylinder 4 on the first connecting plate 6. Since the end of the first connecting plate 6 is provided with a second tooth groove 12, when the tablets enter the area of the second tooth groove 12, with the rotation of the rotating cylinder 4, the paddle 3 on its outer side is driven to rotate clockwise, transferring the tablets from the first connecting plate 6 to the second connecting plate 7 on the other side. The tablets will be between two adjacent paddles 3. When these paddles 3 pass through the first tooth groove 11 on the second connecting plate 7, the tablets will be transferred from the paddles 3 to the area of the first tooth groove 11. As the second connecting plate 7 is inclined, the tablets roll down from the first tooth groove 11 and are removed from the discharge pipe 5. During this process, through the contact with the tablets, the generated collision will shake off the powder adhering to the tablets and the powder at the damaged parts of the tablets.

[0055] Since the powder has a certain adhesiveness, when the powder is on the paddle 3, a small amount of powder will adhere to the paddle 3.

[0056] For this purpose, bevel gears 21 are symmetrically arranged at the end positions of the first tooth groove 11. When the paddle 3 comes into contact with the bevel gears 21 during the process of transferring the tablets, a certain degree of jitter will occur when the paddle 3 passes through the bevel gears 21. With the help of this jitter, the powder adhering to the paddle 3 is processed. At the same time, a brush 20 is also arranged in the first tooth groove 11. When the tablets roll down from the paddle 3, the tablets will not come into contact with the brush 20. Only when the paddle 3 enters the inner side of the first tooth groove 11 will it come into contact with the brush 20. During the process of driving the brush 20 to rotate, the powder at the end position of the paddle 3 will also be scraped off.

[0057] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A dust removal and filtration device for pharmaceutical processing, comprising a feed pipe (1), a filtration box (2) and a discharge pipe (5), characterized in that: On both sides of the lower end of the filtration box (2), pipe bodies (8) are symmetrically arranged, and the two pipe bodies (8) control air intake and air outlet respectively; A frame (9) is placed at the bottom of the filtration box (2). Along the long side direction inside the frame (9), a plurality of filter cloths (10) are detachably arranged. There is a gap between two adjacent filter cloths (10). A moving frame (13) is slidably arranged inside the frame (9). A number of slot holes (14) are evenly formed on the moving frame (13). The filter cloth (10) passes through the slot holes (14), and the filter cloth (10) is in mutual contact with the inner wall of the slot holes (14). An electric telescopic rod (16) is further arranged at the upper end of the moving frame (13); In the initial state, the moving frame (13) is located at a position close to the upper end of the frame (9), and the moving frame (13) gradually moves downward from the upper end; A connecting block (17) is installed at the bottom of the slot hole (14). At the bottom of the connecting block (17), two baffles (18) are symmetrically hinged. The bottoms of the two baffles (18) are in mutual contact with the bottom of the filtration box (2), and the baffles (18) are in contact with the filter cloth (10); The feed pipe (1) and the discharge pipe (5) are respectively arranged on both sides of the filtration box (2). On both sides inside the filtration box (2), a first connecting plate (6) and a second connecting plate (7) are respectively arranged. One end of the first connecting plate (6) is obliquely connected to the lower edge of the feed pipe (1), and one end of the second connecting plate (7) is obliquely connected to the lower edge of the discharge pipe (5); A stepping motor (15) is installed on the outer side of the filtration box (2). Inside the filtration box (2), a rotating cylinder (4) is rotatably arranged, and the rotating cylinder (4) is connected to the output shaft of the stepping motor (15). The rotating cylinder (4) is located between the first connecting plate (6) and the second connecting plate (7); A number of second tooth grooves (12) are evenly formed at the lower end of the first connecting plate (6). At the upper end position of the second connecting plate (7), a number of first tooth grooves (11) are evenly formed. The size of the second tooth grooves (12) matches the size of the first tooth grooves (11). A number of paddles (3) are evenly installed at the circumferential position of the rotating cylinder (4). The paddles (3) are arranged in a staggered manner with the first tooth grooves (11) and the second tooth grooves (12); 2. The dust removal and filtration device for pharmaceutical processing according to claim 1, wherein The top of the electric telescopic rod (16) is fixedly connected to the lower end of the second connecting plate (7), and the electric telescopic rod (16) is in a vertical state during the entire movement process; 3. The dust removal and filtration device for pharmaceutical processing according to claim 2, wherein, Two bevel gears (21) are symmetrically arranged at a position close to the bottom of the inner side of the first tooth groove (11); 4. The dust removal and filtration device for pharmaceutical processing according to claim 3, wherein, A rotating shaft (19) is arranged at a position close to the bottom of the inner side of the first tooth groove (11). A number of brushes (20) are evenly installed on the outer side of the rotating shaft (19); 5. The dust removal and filtration device for pharmaceutical processing according to claim 4, wherein, The brushes (20) are hard brushes; 6. The dust removal and filtration device for pharmaceutical processing according to claim 5, characterized in that, The brushes (20) are located inside the first tooth grooves (11).

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