Filter special for liquid medicine in pharmaceutical technology

Abstract

The invention discloses a special liquid medicine filter in a pharmaceutical process, and relates to the field of pharmacy, the special liquid medicine filter comprises a filter box, the top of the filter box is provided with a liquid inlet pipe, the side surface of the filter box is provided with a collecting pipe, and the two sides of the filter box are provided with auxiliary box bodies; and feeding grooves communicating with the auxiliary box bodies on the two sides are formed in the two sides of the interior of the filtering box correspondingly, and vertical plates located at the two ends of the feeding grooves are installed on the inner side faces of the two auxiliary box bodies correspondingly. According to the special filter for the liquid medicine in the pharmaceutical technology, a metal filter screen, three guide rollers and two winding rollers are matched with one another, and the part, located under a liquid inlet pipe, of the metal filter screen can be continuously replaced in the medicine liquid filtering process, so that falling medicine liquid can be always in an efficient filtering state; and the metal filter screen does not need to be manually and frequently cleaned, so that the continuous and efficient treatment of liquid medicine filtering work is facilitated.

Description

Technical Field

[0001] The present invention relates to pharmaceutical technology, and particularly to a special filter for liquid drugs in a pharmaceutical process. Background Art

[0002] During the preparation process of liquid medicine, there are easily some insoluble substances, which not only include raw material impurities, reaction products and degradation products, but also contain some catalysts, etc. Therefore, during the post-treatment process of the liquid medicine, it is necessary to filter and remove the impurities in the prepared liquid medicine.

[0003] The commonly used method for filtering liquid medicine is to filter through a metal filter screen. However, in actual application, when the amount of liquid medicine to be treated is large, there are also more insoluble substances containing impurities. Therefore, the metal filter screen is easily blocked or the insoluble substances accumulate, resulting in a decrease in the filtering efficiency. Therefore, the present application provides a special filter for liquid drugs in a pharmaceutical process to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a special filter for liquid drugs in a pharmaceutical process to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A special filter for liquid drugs in a pharmaceutical process, including a filter box. An inlet pipe is provided at the top of the filter box, and a collection pipe is provided on the side of the filter box. Auxiliary boxes are provided on both sides of the filter box. Material channels communicating with the auxiliary boxes on both sides are respectively opened on both sides inside the filter box. Vertical plates located at both ends of the material channels are installed on the inner side surfaces of the two auxiliary boxes. Three guide rollers are rotatably connected to the surface of the vertical plate in an inverted triangular shape, and the positions of the two upper guide rollers correspond to the material channels. Take-up rollers are rotatably connected to the bottoms of the inner walls of the two auxiliary boxes. The take-up rollers are driven by motors, and the same metal filter screen is wound on the two take-up rollers;

[0006] Both ends of the metal filter screen respectively pass through the material channels on both sides, and after passing through the three guide rollers on both sides in sequence, they are wound on the take-up rollers on both sides. The winding directions of both ends of the metal filter screen on the two take-up rollers are opposite.

[0007] Furthermore, two material taking openings are respectively opened on the surfaces of the two auxiliary boxes at intervals up and down. Right-angle guide bars located on both sides of the material taking openings are fixedly installed on the inner wall of the auxiliary box. The same collection filter box is slidably connected to the surfaces of the right-angle guide bars on both sides at the same horizontal height. An opening and closing door is provided at the material taking opening.

[0008] Further, the metal filter screen forms a blanking part and a re-cleaning part after passing through three guide rollers in sequence. The bottom end of the re-cleaning part is inclined towards the side close to the filter box, and the position of the blanking part corresponds to the collection filter box.

[0009] Further, a water guide box is fixedly installed on the surface of the vertical plate on the side of the metal filter screen away from the collection filter box. A plurality of high-pressure nozzles are equidistantly installed on the surface of the water guide box along its length direction. The positions and specifications of the high-pressure nozzles correspond to the collection filter box. A connecting water pipe is fixedly connected between the two water guide boxes on both sides, and the connecting water pipe is connected to an external high-pressure water pump.

[0010] Further, belt wheels located outside the auxiliary box body are coaxially and fixedly connected to the outer parts of the two winding rollers respectively. A transmission belt is connected between the two belt wheels, and one of the winding rollers is driven by a motor.

[0011] Further, the bottoms of the two auxiliary box bodies on both sides communicate with each other. A liquid discharge pipe is fixedly connected to the side surface of one of the auxiliary box bodies, and a control valve is installed on the liquid discharge pipe.

[0012] Compared with the prior art, a special filter for liquid medicine in a pharmaceutical process provided by the present invention has the following beneficial effects:

[0013] 1. In the special filter for liquid medicine in this pharmaceutical process, through the mutual cooperation among the metal filter screen, three guide rollers, and two winding rollers, during the liquid medicine filtering process, by continuously replacing the part of the metal filter screen directly below the liquid inlet pipe, the liquid medicine after falling can always be in a high-efficiency filtering state, and the metal filter screen does not need to be frequently cleaned manually, which is beneficial to the continuous and efficient processing of the liquid medicine filtering work.

[0014] 2. In the special filter for liquid medicine in this pharmaceutical process, the three guide rollers guide the metal filter screen to form a blanking part and a re-cleaning part. After the part of the metal filter screen carrying insoluble substances enters the auxiliary box body, the insoluble substances piled on the outer layer can fall into the collection filter box under their own weight after passing through the blanking part. At the same time, with the cooperation of the water guide box and the high-pressure nozzles, the surface of the metal filter screen can be flushed, and the insoluble substances attached to its surface can be washed away and fall into the collection filter box. Thus, when the metal filter screen on one side of the winding roller is about to be released completely, by adjusting the rotation direction of the winding roller, this side can be changed to the winding state, so that the metal filter screen can be continuously used and the liquid medicine filtering work can be continuously carried out. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0016] Figure 1 Schematic diagram of the overall structure provided by the embodiment of the present invention;

[0017] Figure 2 Schematic diagram of the internal structure of the filter box and the auxiliary box body provided by the embodiment of the present invention;

[0018] Figure 3 Schematic diagram of the longitudinal sectional structure of the filter box and the auxiliary box body provided by the embodiment of the present invention;

[0019] Figure 4 Provided by the embodiment of the present invention Figure 3 Enlarged structure schematic diagram at position A in;

[0020] Figure 5 Schematic diagram of the overall back structure provided by the embodiment of the present invention.

[0021] Explanation of reference numerals:

[0022] 1. Filter box; 101. Liquid inlet pipe; 102. Collection pipe; 2. Auxiliary box body; 21. Feeding trough; 22. Vertical plate; 23. Guide roller; 24. Winding roller; 25. Metal filter screen; 251. Feeding part; 252. Re-cleaning part; 3. Material taking port; 31. Right-angle guide bar; 32. Collection filter box; 33. Opening and closing door; 34. Water guide box; 35. High-pressure spray head; 36. Connecting water pipe; 4. Belt pulley; 41. Transmission belt; 5. Drain pipe; 51. Control valve. Specific embodiments

[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will further introduce the present invention in detail in conjunction with the accompanying drawings.

[0024] Embodiment 1:

[0025] Please refer to Figures 1-5, A special filter for liquid medicine in a pharmaceutical process, including a filter box 1 connected in sequence. A liquid inlet pipe 101 is arranged at the top of the filter box 1, a collection pipe 102 is arranged on the side of the filter box 1, auxiliary boxes 2 are arranged on both sides of the filter box 1, material channels 21 communicating with the auxiliary boxes 2 on both sides are respectively opened on both sides inside the filter box 1, vertical plates 22 are installed on the inner side surfaces of the two auxiliary boxes 2 at both ends of the material channels 21, three guide rollers 23 are rotatably connected to the surface of the vertical plate 22 in an inverted triangular shape, and the positions of the two upper guide rollers 23 correspond to the material channels 21. The bottom of the inner walls of the two auxiliary boxes 2 is rotatably connected with winding rollers 24, the winding rollers 24 are driven by motors, and the same metal filter screen 25 is wound on the two winding rollers 24;

[0026] Both ends of the metal filter screen 25 pass through the material channels 21 on both sides respectively, and are wound on the winding rollers 24 on both sides after passing through the three guide rollers 23 on both sides in sequence. The winding directions of both ends of the metal filter screen 25 on the two winding rollers 24 are opposite.

[0027] During the working process, the liquid medicine obtained after decocting directly enters from the liquid inlet pipe 101 at the top of the filter box 1. The entered liquid medicine directly passes through the metal filter screen 25 and falls, and finally converges at the bottom of the filter box 1 and is discharged and collected from the collection pipe 102. After the liquid medicine passes through the metal filter screen 25, the insoluble substances containing impurities therein will be separated and accumulated on the surface of the metal filter screen 25. When the amount of insoluble substances accumulated on its surface is relatively large, one winding roller 24 on one side is driven by a motor to wind the metal filter screen 25, and the other winding roller 24 releases the metal filter screen 25, so that the part of the metal filter screen 25 with accumulated insoluble substances can pass through the material channel 21 and enter the interior of the auxiliary box 2, while the part of the metal filter screen 25 directly below the liquid inlet pipe 101 is in an unaccumulated state. Therefore, during the liquid medicine filtering process, by continuously winding part of the metal filter screen 25, the part of the metal filter screen 25 in the filtering state can always maintain a high filtering state, and there is no need for manual cleaning frequently, which is beneficial to the continuous and efficient progress of the liquid medicine filtering work.

[0028] Embodiment 2:

[0029] Please refer to Figures 1-5 , On the basis of the above embodiment, this embodiment provides a technical solution: Two material taking openings 3 are arranged at intervals up and down on the surfaces of the auxiliary boxes 2 on both sides. Right-angle guide bars 31 are fixedly installed on the inner walls of the auxiliary boxes 2 on both sides of the material taking openings 3. The same collection filter box 32 is slidably connected to the surfaces of the right-angle guide bars 31 on both sides at the same horizontal height. An opening and closing door 33 is arranged at the material taking opening 3.

[0030] In this embodiment, the metal filter screen 25 forms a blanking part 251 and a re-cleaning part 252 after passing through three guide rollers 23 in sequence. The bottom end of the re-cleaning part 252 is inclined towards the side close to the filter box 1, and the position of the blanking part 251 corresponds to the collection filter box 32.

[0031] It should be added that a water guide box 34 is fixedly installed on the surface of the vertical plate 22 on the side of the metal filter screen 25 away from the collection filter box 32. A plurality of high-pressure nozzles 35 are equidistantly installed on the surface of the water guide box 34 along its length direction. The positions and specifications of the high-pressure nozzles 35 all correspond to the collection filter box 32. A connecting water pipe 36 is fixedly connected between the two water guide boxes 34, and the connecting water pipe 36 is connected to an external high-pressure water pump.

[0032] After the part of the metal filter screen 25 carrying insoluble substances enters the auxiliary box body 2, when it is conveyed to the blanking part 251, under the action of its own weight, the insoluble substances accumulated on the outer layer will separate from the surface of the metal filter screen 25 and fall into the collection filter box 32 for collection. During this process, liquid is conveyed in the water guide box 34 through an external high-pressure water pump, so that high-pressure liquid can be sprayed out at the high-pressure nozzles 35, and the metal filter screen 25 passing through this place is flushed, so that the insoluble substances attached to the surface of the metal filter screen 25 can be washed off the surface of the metal filter screen 25 and fall into the collection filter box 32.

[0033] When the collection amount of a collection filter box 32 reaches saturation, the operator can take it out by opening the opening and closing door 33. At this time, the insoluble substances after filtration are continuously collected by another collection filter box 32 arranged at an upper and lower interval on the same side, so that the filtration work of the liquid medicine can continue without interruption.

[0034] Embodiment 3:

[0035] Please refer to Figure 5 In this embodiment, on the basis of the above embodiment, a technical solution is provided: Belt wheels 4 located outside the auxiliary box body 2 are coaxially and fixedly connected to the outer parts of the two winding rollers 24 respectively, and a transmission belt 41 is connected between the two belt wheels 4, and one of the winding rollers 24 is driven by a motor.

[0036] Through the mutual cooperation between the belt wheel 4 and the transmission belt 41, when one of the winding rollers 24 is driven by a motor, it can drive the other winding roller 24 to rotate synchronously. And since the winding directions of the metal filter screen 25 on the two winding rollers 24 are opposite, therefore, when one is winding, the other can release synchronously, so that the adjustment of the metal filter screen 25 is more convenient.

[0037] Embodiment 4:

[0038] Please refer to Figure 2, this embodiment provides a technical solution on the basis of the above embodiment: the bottoms of the two auxiliary boxes 2 are interconnected, and a liquid discharge pipe 5 is fixedly connected to the side of one auxiliary box 2, and a control valve 51 is installed on the liquid discharge pipe 5.

[0039] It should be noted that by interconnecting the bottoms of the two auxiliary boxes 2, the liquids during the flushing process can communicate and converge with each other, so that they can be fully discharged with the cooperation of the liquid discharge pipe 5.

[0040] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A filter for liquid medicine in pharmaceutical technology, comprising a filter box (1), a liquid inlet pipe (101) is arranged on the top of the filter box (1), and a collecting pipe (102) is arranged on the side of the filter box (1), characterized in that: Auxiliary boxes (2) are provided on both sides of the filter box (1), and material troughs (21) connected to the auxiliary boxes (2) on both sides are respectively provided on both sides of the inside of the filter box (1), and vertical plates (22) located at both ends of the material trough (21) are installed on the inner side surfaces of the two auxiliary boxes (2), and the surface of the vertical plates (22) is rotatably connected to three guide rollers (23) in an inverted triangle shape, and the positions of the two guide rollers (23) located at the top correspond to the material trough (21), and the bottoms of the inner walls of the two auxiliary boxes (2) are rotatably connected to winding rollers (24), and the winding rollers (24) are driven by a motor, and the same metal filter screen (25) is wound on the two winding rollers (24); The two ends of the metal filter (25) pass through the material feeding troughs (21) on both sides respectively, and are wound on the winding rollers (24) on both sides after passing through the three guide rollers (23) on both sides in sequence. The winding directions of the two ends of the metal filter (25) on the two winding rollers (24) are opposite.

2. A filter for liquid medicine in pharmaceutical process according to claim 1, characterized in that: The surfaces of the auxiliary boxes (2) on both sides are provided with two material taking ports (3) spaced apart from each other in an upper and lower direction. The inner wall of the auxiliary boxes (2) is fixedly provided with right-angle guide bars (31) located on both sides of the material taking ports (3). The surfaces of the right-angle guide bars (31) on both sides at the same horizontal height are slidably connected with the same collecting filter box (32). The material taking ports (3) are provided with opening and closing doors (33).

3. A filter for liquid medicine in pharmaceutical process according to claim 2, characterized in that: The metal filter (25) is formed with a feed portion (251) and a cleaning portion (252) after passing through three guide rollers (23) in sequence. The bottom end of the cleaning portion (252) is inclined toward a side close to the filter box (1). The position of the feed portion (251) corresponds to the collection filter box (32).

4. A filter for liquid medicine in pharmaceutical process according to claim 3, characterized in that: A water guide box (34) is fixedly mounted on the surface of the vertical plate (22) and is located on the side of the metal filter (25) away from the collection filter box (32). A plurality of groups of high-pressure nozzles (35) are equidistantly mounted on the surface of the water guide box (34) along its length direction. The positions and specifications of the high-pressure nozzles (35) correspond to the collection filter box (32). A connecting water pipe (36) is fixedly connected between the water guide boxes (34) on both sides, and the connecting water pipe (36) is connected to an external high-pressure water pump.

5. A filter for liquid medicine in pharmaceutical process according to claim 1, characterized in that: The outsides of the two winding rollers (24) are coaxially fixedly connected to pulleys (4) located outside the auxiliary box (2), and a transmission belt (41) is connected between the two pulleys (4). One of the winding rollers (24) is driven by a motor.

6. A filter for liquid medicine in pharmaceutical process according to claim 1, characterized in that: The bottoms of the auxiliary boxes (2) on both sides are connected to each other, and a liquid discharge pipe (5) is fixedly connected to the side of the auxiliary box (2) on one side, and a control valve (51) is installed on the liquid discharge pipe (5).

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