Plate-and-frame filter press for preparing medical intermediates

Abstract

The utility model relates to the technical field of medical intermediate preparation equipment, and discloses a medical intermediate preparation plate-and-frame filter press which comprises a filter pressing box body, the upper end of the filter pressing box body is fixedly connected with a limiting column, one side of the filter pressing box body is provided with a hydraulic rod, the end part of the hydraulic rod is fixedly connected with a pressing plate, and the end part of the pressing plate is fixedly connected with a pressing plate. And a filter plate and a plate frame are connected to one side of the outer part of the limiting column in a sleeving manner. According to the plate-and-frame filter press for preparing the medical intermediates, the position between a filter plate and a plate frame can stretch out and draw back after being pressed, meanwhile, the position between a material conveying pipeline and a T-shaped pipeline can be subjected to stretching out and drawing back treatment, and meanwhile, the position between a liquid conveying pipe and an auxiliary pipe can be stretched out and drawn back; in other words, the positions of the T-shaped pipeline and the liquid conveying pipe in the plate frame can be limited, the T-shaped pipeline can control the filter pressing material to be kept uniform during filling, the liquid conveying pipe can continuously flush medicinal materials when driving flushing liquid to flush the medicinal materials, and then the flushing efficiency of the medicinal materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical intermediate preparation equipment, in particular to a plate and frame filter press for pharmaceutical intermediate preparation. Background Technique

[0002] A pharmaceutical intermediate refers to a chemical substance used to synthesize drugs during the pharmaceutical process. It is an intermediate step from the raw material drug to the final preparation and is converted into the final drug through a series of chemical reactions. During the preparation of pharmaceutical intermediates, the medicinal materials are subjected to solid-liquid separation. By means of solid-liquid separation, the medicinal residues are separated from the medicinal materials to facilitate the subsequent forming preparation of the pharmaceutical intermediates. In order to improve the solid-liquid separation efficiency of pharmaceutical intermediates, a filtration press method is adopted for separation.

[0003] When a filtration press is usually used, the medicinal materials are placed inside the plate and frame, and at the same time, the pressing plate is controlled to squeeze the medicinal materials inside the plate and frame. The liquid in the medicinal materials is filtered through the filter cloth and discharged. At the same time, the medicinal residues will accumulate inside the plate and frame. When the filtration of the equipment is completed, the staff needs to open the filter plates in turn and clean the medicinal residues accumulated inside the plate and frame to avoid the accumulation of medicinal residues, which may affect the subsequent preparation of pharmaceutical intermediates. However, since the medicinal residues are accumulated between the two groups of plates, when cleaning the medicinal residues, the staff needs to open the filter plates in turn to clean the medicinal residues, thus affecting the processing efficiency. Therefore, we propose a plate and frame filter press for pharmaceutical intermediate preparation. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing plate and frame filter press for pharmaceutical intermediate preparation, the utility model provides a plate and frame filter press for pharmaceutical intermediate preparation, which has the advantages of squeezing the medicinal materials by the filter plates and the plate and frame, the filter residues accumulating inside the plate and frame, and at the same time, the spring pushing the positions between the filter plates and the plate and frame to separate, that is, the plate and frame are exposed outside, which is convenient for cleaning the medicinal residues accumulated inside the plate and frame, and solves the problems mentioned in the above background technique.

[0005] The utility model provides the following technical solution: a plate-and-frame filter press for preparing pharmaceutical intermediates, including a filter press box body, wherein a limiting column is fixedly connected to the upper end of the filter press box body, a hydraulic rod is installed on one side of the filter press box body, a pressing plate is fixedly connected to the end of the hydraulic rod, a filter plate and a plate frame are sleeved on the outside of one side of the limiting column, a first sealing sleeve and a first telescopic sleeve are fixedly connected to the inner angle of the filter plate, a second sealing sleeve and a second telescopic sleeve are arranged in the middle of the plate frame, a spring is installed between the filter plate and the plate frame, a feeding pipeline is fixedly connected to the middle of the upper end of the filter plate, a T-shaped pipeline is fixedly connected to the middle of the upper end of the plate frame, an auxiliary pipe is fixedly connected to the inside of the filter plate, a liquid delivery pipe is movably sleeved in the inside of one side of the auxiliary pipe, a flushing nozzle is fixedly connected to the lower end of the middle of the liquid delivery pipe, and a liquid outlet is arranged on one side of the lower part of the filter plate.

[0006] Preferably, the pressing plate is fitted and installed on the outside of the filter plate, and at the same time, the pressing plate is sleeved on the outside of the limiting column.

[0007] Preferably, the filter plates and the plate frames are arranged at equal intervals inside the filter press box body, and the plate frames are sleeved on the outside of two groups of filter plates.

[0008] Preferably, the middle of the T-shaped pipeline extends to the middle of the plate frame, the feeding pipeline is sleeved inside the T-shaped pipeline, and the liquid delivery pipe is arranged in the middle of the plate frame.

[0009] Preferably, the first sealing sleeve and the second sealing sleeve are semicircular, and the first sealing sleeve and the second sealing sleeve are sleeved on the outside of the first telescopic sleeve and the second telescopic sleeve.

[0010] Preferably, the first telescopic sleeve and the second telescopic sleeve are circular, and the spring is arranged inside the first telescopic sleeve and the second telescopic sleeve.

[0011] Preferably, an anti-slip groove is installed in the middle of one side of the filter plate, a filter screen is fitted and installed on the outside of the anti-slip groove, and air holes are arranged inside the filter plate.

[0012] Compared with the existing plate-and-frame filter press for preparing pharmaceutical intermediates, the utility model has the following beneficial effects:

[0013] 1. In the plate-and-frame filter press for preparing pharmaceutical intermediates, the spring is arranged between the filter plate and the plate frame, and the first telescopic sleeve and the second telescopic sleeve limit the movement track of the spring. After the filter plate and the plate frame finish pressing the medicinal materials, by loosening the pressing plate, the spring can push the positions between the filter plate and the plate frame to separate, which is convenient for taking out the medicinal residues from the inside of the plate frame, improving the convenience during the cleaning of the medicinal residues. Moreover, the first sealing sleeve and the second sealing sleeve are arranged on the outside of the first telescopic sleeve and the second telescopic sleeve, and the first sealing sleeve and the second sealing sleeve further seal the outside of the first telescopic sleeve and the second telescopic sleeve to ensure the pressing of the medicinal materials.

[0014] 2. The plate and frame filter press for preparing the pharmaceutical intermediate can be telescoped after being pressured at the position between the filter plate and the plate frame. Meanwhile, the position between the feeding pipeline and the T-shaped pipeline can be telescoped, and the position between the liquid delivery pipe and the auxiliary pipe can be telescoped. That is, the positions of the T-shaped pipeline and the liquid delivery pipe inside the plate frame can be limited. Moreover, the T-shaped pipeline can control the uniformity during the filling of the pressure filtration material, and the liquid delivery pipe can continuously flush the medicinal materials when driving the flushing liquid to flush the medicinal materials, thereby improving the flushing efficiency of the medicinal materials. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the sectional structure of the main body of the present utility model;

[0017] Figure 3 It is a schematic diagram of the sectional structure of the elastic structure of the present utility model;

[0018] Figure 4 It is a schematic diagram of the sectional structure of the cleaning liquid delivery structure of the present utility model;

[0019] Figure 5 It is a schematic diagram of the filter plate structure of the present utility model;

[0020] Figure 6 It is a schematic diagram of the plate frame structure of the present utility model;

[0021] Figure 7 It is a schematic diagram of the enlarged structure at position A of the present utility model;

[0022] Figure 8 It is a schematic diagram of the enlarged structure at position B of the present utility model.

[0023] In the figure: 1. Pressure filtration box body; 2. Limit post; 3. Hydraulic rod; 4. Pressing plate; 5. Filter plate; 6. Plate frame; 7. First sealing sleeve; 8. Second sealing sleeve; 9. First telescopic sleeve; 10. Second telescopic sleeve; 11. Spring; 12. Feeding pipeline; 13. T-shaped pipeline; 14. Liquid delivery pipe; 15. Flushing nozzle; 16. Auxiliary pipe; 17. Liquid outlet; 18. Anti-slip groove; 19. Filter screen. Detailed Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 , a plate and frame filter press for preparing pharmaceutical intermediates, comprising a filter press box body 1, a limiting column 2 is fixedly connected to the upper end of the filter press box body 1, the limiting column 2 limits the movement tracks of the filter plate 5 and the plate frame 6, a hydraulic rod 3 is installed on one side of the filter press box body 1, a pressing plate 4 is fixedly connected to the end of the hydraulic rod 3, the hydraulic rod 3 pushes the pressing plate 4 to move inward, applying pressure to the filter plate 5 and the plate frame 6, a filter plate 5 and a plate frame 6 are sleeved on one side outside the limiting column 2, a first sealing sleeve 7 and a first telescopic sleeve 9 are fixedly connected to the inner corner of the filter plate 5, the first sealing sleeve 7 and the second sealing sleeve 8 seal the outside of the spring 11, a second sealing sleeve 8 and a second telescopic sleeve 10 are arranged in the middle of the plate frame 6, the first telescopic sleeve 9 and the second telescopic sleeve 10 limit the movement track of the spring 11, a spring 11 is installed between the filter plate 5 and the plate frame 6, the spring 11 pushes the positions between the filter plate 5 and the plate frame 6 to separate, a feeding pipeline 12 is fixedly connected to the middle of the upper end of the filter plate 5, a T-shaped pipeline 13 is fixedly connected to the middle of the upper end of the plate frame 6, the positions between the feeding pipeline 12 and the T-shaped pipeline 13 can be telescopic, and at the same time the T-shaped pipeline 13 can drive the medicinal materials to be conveyed into the plate frame 6 in sequence, improving the convenience during feeding, an auxiliary pipe 16 is fixedly connected to the inside of the filter plate 5, a liquid conveying pipe 14 is movably sleeved inside one side of the auxiliary pipe 16, the liquid conveying pipe 14 can be telescopically adjusted inside the auxiliary pipe 16, and at the same time the auxiliary pipe 16 can drive the flushing liquid to be conveyed into the inside of the flushing nozzle 15, a flushing nozzle 15 is fixedly connected to the lower end of the middle of the liquid conveying pipe 14, a liquid outlet 17 is opened on one side of the lower part of the filter plate 5, and the liquid outlet 17 drives the medicinal liquid to be discharged.

[0026] Please refer to Figure 1 , the pressing plate 4 is fitted and installed outside the filter plate 5, and at the same time the pressing plate 4 is sleeved outside the limiting column 2. By arranging the pressing plate 4 on one side of the filter plate 5, by starting the hydraulic rod 3, the hydraulic rod 3 controls the pressing plate 4 to move inward, that is, the pressing plate 4 applies pressure to the filter plate 5, that is, the filter plate 5 drives the medicine inside the plate frame 6 to be extruded, and the medicinal liquid can be extruded from the medicinal residues, playing a role in solid-liquid separation.

[0027] Please refer to Figure 1, the filter plates 5 and the plate frames 6 are arranged at equal intervals inside the pressure filter box body 1, and the plate frames 6 are sleeved outside two groups of filter plates 5. By sleeving the plate frames 6 outside the filter plates 5, and the filter plates 5 and the plate frames 6 are arranged at equal intervals inside the pressure filter box body 1. When pressure is applied to one end of the filter plate 5, after the plate frame 6 is subjected to pressure, the liquid medicine is extruded, and at the same time, the position of the plate frame 6 outside the filter plate 5 is adjusted, that is, the dregs can be accumulated inside the plate frame 6.

[0028] Please refer to Figure 2 , the middle part of the T-shaped pipe 13 extends to the middle part of the plate frame 6, and the feeding pipe 12 is sleeved inside the T-shaped pipe 13. The liquid delivery pipe 14 is arranged in the middle part of the plate frame 6. By sleeving the feeding pipe 12 inside the T-shaped pipe 13, when the position between the filter plate 5 and the plate frame 6 is telescopically adjusted, both the feeding pipe 12 and the T-shaped pipe 13 can drive the material to be transported, and the feeding pipe 12 can be connected to a water pump, and the water pump drives the medicine to be injected into the inside of each group of plate frames 6 in sequence through the T-shaped pipe 13.

[0029] Please refer to Figure 7 , the first sealing sleeve 7 and the second sealing sleeve 8 are semicircular, and the first sealing sleeve 7 and the second sealing sleeve 8 are sleeved outside the first telescopic sleeve 9 and the second telescopic sleeve 10. By the first sealing sleeve 7 and the second sealing sleeve 8 being semicircular, and the first sealing sleeve 7 and the second sealing sleeve 8 being sleeved outside the first telescopic sleeve 9 and the second telescopic sleeve 10, that is, the first sealing sleeve 7 and the second sealing sleeve 8 perform a sealing treatment on the outside of the first telescopic sleeve 9 and the second telescopic sleeve 10.

[0030] Please refer to Figure 7 , the first telescopic sleeve 9 and the second telescopic sleeve 10 are circular, and the spring 11 is arranged inside the first telescopic sleeve 9 and the second telescopic sleeve 10. By sleeving the first telescopic sleeve 9 and the second telescopic sleeve 10 outside the spring 11, the first telescopic sleeve 9 and the second telescopic sleeve 10 limit the position of the spring 11, and the spring 11 can push the filter plate 5 and the plate frame 6 to separate to both sides. When the pressure filtration of the medicinal materials is completed, the pressing plate 4 is moved to the side, that is, the limitation of the filter plate 5 is reduced, and the spring 11 can push the separation between the second telescopic sleeve 10 and the spring 11, which is convenient for taking out the dregs from the inside of the plate frame 6.

[0031] Please refer to Figure 5 and Figure 6 , an anti-slip groove 18 is installed in the middle of one side of the filter plate 5, and a filter screen 19 is fitted and installed outside the anti-slip groove 18. An air outlet hole is opened inside the filter plate 5. By installing the anti-slip groove 18 on one side of the filter plate 5, when the filter screen 19 is installed, the anti-slip groove 18 increases the friction force, thereby ensuring the stability during the installation of the filter screen 19. And after the filter screen 19 is arranged on one side of the filter plate 5, when the medicinal materials are extruded, the liquid medicine can be extruded and filtered through the filter screen 19, improving the efficiency during the preparation of the pharmaceutical intermediate.

[0032] Working principle: During use, the filter plates 5 and the plate frames 6 are sequentially sleeved and defined with each other. At the same time, the medicinal materials to be prepared are transported into the interior of the T-shaped pipe 13 through the feed pipe 12 by means of a pump body, that is, the medicinal materials are transported into the interior of the plate frame 6. The hydraulic rod 3 is started, and the hydraulic rod 3 pushes the pressing plate 4 to move inward, that is, the filter plate 5 squeezes the medicinal materials. At the same time, the liquid medicine is filtered through the filter screen 19 and then transported into the interior of the filter plate 5. The filter plate 5 drives the liquid medicine to be discharged through the liquid outlet 17. At the same time, the medicinal residues are compressed and formed inside the plate frame 6, and the flushing liquid can be evenly transported into the interior of the plate frame 6 through the liquid delivery pipe 14 and the flushing nozzle 15. During the pressure filtration process of the medicinal materials, the medicinal materials are effectively flushed, improving the sufficiency of the pressure filtration. And when the pressure filtration of the equipment is completed, the filter plate 5 is controlled to move to the side, that is, the filter plate 5 is separated from both sides of the plate frame 6, and under the elastic action of the spring 11, it is convenient to drive the separation between the filter plate 5 and the plate frame 6, improving the convenience during the extraction of the medicinal residues.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plate-frame filter press for pharmaceutical intermediate production, comprising a filter press box body (1), the upper end of the filter press box body (1) is fixedly connected to a limiting column (2), a hydraulic rod (3) is installed on one side of the filter press box body (1), the end of the hydraulic rod (3) is fixedly connected to a pressure plate (4), and a filter plate (5) and a plate frame (6) are sleeved on one side of the outer side of the limiting column (2), characterized in that: The inner corner of the filter plate (5) is fixedly connected with a first sealing sleeve (7) and a first telescopic sleeve (9); the middle of the plate frame (6) is provided with a second sealing sleeve (8) and a second telescopic sleeve (10); a spring (11) is installed between the filter plate (5) and the plate frame (6); the middle of the upper end of the filter plate (5) is fixedly connected with a material conveying pipeline (12); the middle of the upper end of the plate frame (6) is fixedly connected with a T-shaped pipeline (13); the inside of the filter plate (5) is fixedly connected with an auxiliary pipe (16); one side of the auxiliary pipe (16) is movably sleeved with a liquid conveying pipe (14); the lower end of the middle of the liquid conveying pipe (14) is fixedly connected with a flushing nozzle (15); and one side of the lower part of the filter plate (5) is provided with a liquid outlet (17).

2. The plate-frame filter press for pharmaceutical intermediate system according to claim 1, characterized in that: The pressing plate (4) is fitted on the outside of the filter plate (5), and the pressing plate (4) is sleeved on the outside of the limiting column (2).

3. The plate-frame filter press for pharmaceutical intermediate system according to claim 1, characterized in that: The filter plates (5) and plate frames (6) are arranged at equal intervals inside the filter press box body (1), and the plate frames (6) are sleeved on the outside of the two groups of filter plates (5).

4. The plate-frame filter press for pharmaceutical intermediate system according to claim 1, characterized in that: The middle of the T-shaped pipe (13) extends to the middle of the plate frame (6), and the material delivery pipe (12) is sleeved inside the T-shaped pipe (13), and the liquid delivery pipe (14) is arranged in the middle of the plate frame (6).

5. The plate-and-frame filter press for pharmaceutical intermediate system according to claim 1, characterized in that: The first sealing sleeve (7) and the second sealing sleeve (8) are semicircular in shape, and the first sealing sleeve (7) and the second sealing sleeve (8) are sleeved on the outside of the first telescopic sleeve (9) and the second telescopic sleeve (10).

6. The plate-and-frame filter press for pharmaceutical intermediate system according to claim 1, characterized in that: The first telescopic sleeve (9) and the second telescopic sleeve (10) are circular, and the spring (11) is arranged inside the first telescopic sleeve (9) and the second telescopic sleeve (10).

7. The plate-and-frame filter press for pharmaceutical intermediate system according to claim 1, characterized in that: An anti-skid groove (18) is installed in the middle of one side of the filter plate (5), a filter screen (19) is installed outside the anti-skid groove (18), and an air outlet is opened inside the filter plate (5).

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