Waste recovery treatment device for medicine production

Abstract

The invention discloses a waste recovery treatment device for medicine production. The waste recovery treatment device comprises a supporting frame; the filtering mechanism is fixedly mounted at the top of the supporting frame; and the sealing mechanism is fixedly mounted in the filtering mechanism. According to the waste recovery treatment device, a spliced structure is adopted, the overall cleaning difficulty is greatly reduced, the connecting mode is simple, dismounting and mounting are convenient, the occupied area of the device can be reduced when the device is not used, and the space utilization rate is increased; meanwhile, blocky unmelted materials left between the auxiliary filter plate and the first-stage filter plate are intermittently extruded through movement of the auxiliary filter plate, the rotating extrusion process is completed in combination with the first-stage filter plate rotating all the time, the unmelted materials are helped to be crushed, the problem that the first-stage filter plate is blocked too fast during filtering is avoided, and the service life of the filter is prolonged. And the single-time effective working time of the equipment is greatly prolonged, and the recovery efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of biological waste treatment technology, specifically to a waste recycling and treatment device for pharmaceutical production. Background Technology

[0002] Waste recycling and treatment equipment for pharmaceutical manufacturing is used to treat waste generated during the pharmaceutical manufacturing process, especially liquid wastewater. Its purpose is to recover and reuse useful substances and reduce environmental pollution through physical filtration, separation, and purification processes. This type of equipment has important applications in the field of biological waste treatment technology, helping companies comply with environmental regulations while improving resource utilization efficiency and reducing production costs.

[0003] However, traditional pharmaceutical waste recycling and processing equipment still has many shortcomings in practical use: First, the equipment mostly adopts a fixed structure, which makes cleaning and maintenance difficult, the disassembly and assembly process cumbersome, and it occupies a large space when not in use, reducing space utilization; second, the filter plates are prone to rapid clogging during processing due to the accumulation of lumpy unmelted materials, requiring frequent shutdowns for cleaning, significantly shortening the single continuous working time and affecting recycling efficiency; in addition, the sealing performance between each stage of filter tubes often relies on manual adjustment, and poor sealing may lead to leakage problems, further increasing operational complexity and limiting the stability and ease of use of the equipment. These shortcomings make it difficult for existing equipment to maintain a high-efficiency and reliable working state in long-term operation, and improvements are urgently needed. Summary of the Invention

[0004] This invention provides a waste recycling and treatment device for pharmaceutical production, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste recycling and treatment device for pharmaceutical production, comprising a support frame and further comprising: a filtering mechanism fixedly installed on the top of the support frame; and a sealing mechanism fixedly installed inside the filtering mechanism; wherein the filtering mechanism includes a limiting rod, the limiting rod being fixedly connected to the upper surface of the edge of the support frame, wherein three limiting rods are fixedly spaced around the central axis of the support frame, a primary filter tube is slidably inserted into the inner side of the limiting rod, a feed pipe is fixedly connected through the upper surface of the primary filter tube, a secondary filter tube is attached to the bottom of the primary filter tube, a tertiary filter tube is attached to the bottom of the secondary filter tube, and the bottom surface of the tertiary filter tube is attached to the upper surface of the support frame, wherein the secondary and tertiary filter tubes are simultaneously slidably inserted into the limiting rods.

[0006] According to one embodiment of the present invention, a funnel is fixedly connected to the bottom surface of the three-stage filter tube, an annular groove is formed on the upper edge surface of the first-stage filter tube, a connecting ring is slidably inserted into the inner surface of the annular groove, and the connecting ring is fixedly connected to the top of the limiting rod by bolts.

[0007] According to one embodiment of the present invention, a primary filter plate is rotatably connected to the bottom inner surface of the primary filter tube, an upper drive rod is fixedly connected through the middle upper surface of the primary filter plate, the top of the upper drive rod is disposed through the top of the primary filter tube, a motor is fixedly connected to the middle upper surface of the primary filter tube, and the top of the upper drive rod is rotatably connected to the output end of the motor.

[0008] According to one embodiment of the present invention, the bottom of the upper drive rod is provided with a thread, and the bottom of the upper drive rod is connected to an auxiliary filter plate by the thread. The bottom inner surface of the primary filter tube is provided with a sliding groove, and the outer side of the auxiliary filter plate is slidably connected to the sliding groove. Initially, the auxiliary filter plate is set at the top of the sliding groove.

[0009] According to one embodiment of the present invention, a secondary filter plate is rotatably connected to the bottom inner surface of the secondary filter tube, a central drive rod is fixedly connected through the middle upper surface of the secondary filter plate, the top of the central drive rod is engaged with the upper drive rod, a bonding filter plate is fixedly connected to the bottom inner surface of the secondary filter tube, the bottom surface of the bonding filter plate is bonded to the upper surface of the secondary filter plate, a cleaning frame is fixedly sleeved on the bottom outer surface of the central drive rod, the bottom surface of the cleaning frame is provided with bristles, and the bristles at the bottom of the cleaning frame are pressed and bonded to the upper surface of the bonding filter plate.

[0010] According to one embodiment of the present invention, a three-stage filter plate is fixedly connected to the bottom inner surface of the three-stage filter tube, and a lower drive rod is rotatably connected through the middle upper surface of the three-stage filter plate. The top of the lower drive rod is engaged with the bottom of the middle drive rod, and an agitator is fixedly sleeved on the middle outer surface of the lower drive rod.

[0011] According to one embodiment of the present invention, the primary filter plate and the auxiliary filter plate are arranged with the same shape and size, the secondary filter plate and the bonding filter plate are arranged with the same shape and size, and the pore size of the primary filter plate, the secondary filter plate and the tertiary filter plate is arranged to gradually decrease.

[0012] According to one embodiment of the present invention, the sealing mechanism includes a first elastic telescopic ring, which is fixedly embedded in the bottom of the annular groove of the first-stage filter tube, and a second elastic telescopic ring is fixedly embedded in the bottom of the first-stage filter tube. The bottom surface of the second elastic telescopic ring is set as a rubber surface, and the internal cavity of the first elastic telescopic ring is in communication with the internal cavity of the second elastic telescopic ring.

[0013] According to one embodiment of the present invention, a No. 1 sealing groove is formed at the top of the secondary filter tube, a No. 3 elastic telescopic ring is fixedly embedded at the bottom of the No. 1 sealing groove, the upper surface of the No. 3 elastic telescopic ring is set as a rubber surface, a No. 4 elastic telescopic ring is fixedly embedded at the bottom of the secondary filter tube, the internal cavity of the No. 3 elastic telescopic ring is connected to the internal cavity of the No. 4 elastic telescopic ring, and a No. 2 sealing groove is formed on the upper surface of the tertiary filter tube.

[0014] Furthermore, the bottom surface of the fourth elastic telescopic ring and the bottom surface of the second sealing groove are both made of rubber.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: (1) The waste recycling and treatment device for drug production adopts a spliced ​​structure, which greatly reduces the difficulty of overall cleaning and the connection method is relatively simple and easy to disassemble and assemble. At the same time, it can also reduce the floor space occupied by the equipment when it is not in use and improve the space utilization rate. After the wastewater is introduced into the feed pipe, the motor is started to rotate in both directions. After the motor starts, it will drive the upper drive rod to rotate. As the upper drive rod rotates, it will drive the primary filter plate to rotate. At the same time, it will drive the auxiliary filter plate to move up and down intermittently to approach and move away from the primary filter plate through the thread. When the wastewater passes through the primary filter pipe, it must pass through the auxiliary filter plate and the primary filter plate for filtration. That is, the movement of the auxiliary filter plate intermittently squeezes the blocky unmelted material remaining between it and the primary filter plate. Combined with the continuously rotating primary filter plate to complete the rotation and squeezing process, it helps to break the unmelted material and avoids the problem of the primary filter plate clogging too quickly during filtration. This greatly improves the single effective working time of the equipment and improves the recycling efficiency.

[0016] (2) In the waste recycling and treatment device for drug production, wastewater can enter the secondary filter tube after being initially filtered by the primary filter plate. The middle drive rod in the secondary filter tube is fixedly connected to the upper drive rod. That is, when the upper drive rod rotates, it will drive the middle drive rod to rotate, which in turn drives the secondary filter plate to rotate. At this time, the adhesive filter plate attached to the upper surface of the secondary filter plate is in a fixed state, that is, the filter holes on the secondary filter plate are intermittently closed. At the same time, the rotation of the middle drive rod will also drive the cleaning frame to rotate. That is, the brushes set on the cleaning frame will continuously rotate and clean the upper surface of the adhesive filter plate. At the same time, the intermittently closed secondary filter plate will improve the cleaning efficiency and avoid the problem that the filter holes on the adhesive filter plate will always be in a high-pressure state due to the continuous connection of the secondary filter plate, thus reducing the cleaning efficiency. At the same time, when the secondary filter plate is intermittently closed, it will also increase the water pressure in the secondary filter tube, thereby intermittently pressurizing the wastewater passing through the adhesive filter plate and the secondary filter plate, thereby reducing the probability of the secondary filter plate clogging and greatly improving the working stability of the equipment.

[0017] (3) In the waste recycling and treatment device for drug production, the wastewater filtered by the secondary filter plate will enter the tertiary filter tube. After being filtered by the tertiary filter plate in the tertiary filter tube, the wastewater will enter the funnel for discharge. At the same time, the lower drive rod and the middle drive rod in the tertiary filter tube are fixedly connected. Therefore, after the motor starts, it will drive the lower drive rod to rotate, thereby driving the agitator to rotate, and thus continuously agitating the wastewater entering the tertiary filter tube, reducing the probability of clogging of the tertiary filter plate, further extending the overall single working time of the equipment, and improving the ease of use. When the connecting ring is installed, it will squeeze the No. 1 elastic expansion ring on the primary filter tube, thereby making the internal cavity of the No. 1 elastic expansion ring empty. The increased air pressure is then transmitted to the second elastic expansion ring, causing it to expand into the first sealing groove at the top of the secondary filter tube and contact and compress with the third elastic expansion rod, sealing the primary and secondary filter tubes. Simultaneously, as the second elastic expansion ring compresses the third elastic expansion ring, it also causes the third elastic expansion ring to contract, transmitting its internal air pressure to the fourth elastic expansion ring. This causes the fourth elastic expansion ring to move into the second sealing groove at the top of the tertiary filter tube, completing the seal between the secondary and tertiary filter tubes. This allows for simultaneous sealing of all filter tubes after the equipment is fixedly installed, significantly improving the ease of use of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a waste recycling and treatment device for drug production according to one embodiment of the present invention; Figure 2 This is a schematic diagram of a funnel and its connection structure in one embodiment of the present invention; Figure 3 This is a cross-sectional view of a primary filter tube, a secondary filter tube, and a tertiary filter tube in one embodiment of the present invention; Figure 4 This is a connection diagram of a primary filter tube, a secondary filter tube, and a tertiary filter tube in one embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a primary filter tube in one embodiment of the present invention; Figure 6 This is a schematic diagram of the installation structure of an auxiliary filter plate in one embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a secondary filter tube in one embodiment of the present invention; Figure 8 This is a schematic diagram of a three-stage filter tube in one embodiment of the present invention.

[0019] In the diagram: 1. Support frame; 2. Filtration mechanism; 21. Limiting rod; 22. Primary filter tube; 221. Feed pipe; 23. Secondary filter tube; 24. Tertiary filter tube; 25. Funnel; 26. Annular groove; 27. Connecting ring; 28. Primary filter plate; 29. ​​Upper drive rod; 210. Motor; 211. Auxiliary filter plate; 212. Slide groove; 213. Secondary filter plate; 214. Middle drive rod; 215. Adhesive filter plate; 216. Cleaning frame; 217. Tertiary filter plate; 218. Lower drive rod; 219. Agitator; 3. Sealing mechanism; 31. Elastic telescopic ring No. 1; 32. Elastic telescopic ring No. 2; 33. Sealing groove No. 1; 34. Elastic telescopic ring No. 3; 35. Elastic telescopic ring No. 4; 36. Sealing groove No. 2. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] First embodiment: as follows Figures 1 to 8 As shown, the waste recycling and treatment device for pharmaceutical production provided in this embodiment includes: Support frame 1; Filter mechanism 2 is fixedly installed on the top of support frame 1; Sealing mechanism 3 is fixedly installed inside the filter mechanism 2; The filter mechanism 2 includes a limiting rod 21, which is fixedly connected to the upper surface of the edge of the support frame 1. The limiting rod 21 is arranged at fixed intervals around the central axis of the support frame 1. A primary filter tube 22 is slidably inserted into the inner side of the limiting rod 21. A feed pipe 221 is fixedly connected through the upper surface of the primary filter tube 22. A secondary filter tube 23 is attached to the bottom of the primary filter tube 22. A tertiary filter tube 24 is attached to the bottom of the secondary filter tube 23. The bottom surface of the tertiary filter tube 24 is attached to the upper surface of the support frame 1. The secondary filter tube 23 and the tertiary filter tube 24 are simultaneously slidably inserted into the limiting rod 21.

[0022] A funnel 25 is fixedly connected to the bottom surface of the three-stage filter tube 24. An annular groove 26 is opened on the upper surface of the edge of the first-stage filter tube 22. A connecting ring 27 is slidably inserted into the inner surface of the annular groove 26. The connecting ring 27 is fixedly connected to the top of the limiting rod 21 by bolts.

[0023] A primary filter plate 28 is rotatably connected to the bottom inner surface of the primary filter tube 22. An upper drive rod 29 is fixedly connected through the middle upper surface of the primary filter plate 28. The top of the upper drive rod 29 is set through the top of the primary filter tube 22. A motor 210 is fixedly connected to the middle upper surface of the primary filter tube 22. The top of the upper drive rod 29 is rotatably connected to the output end of the motor 210.

[0024] The bottom of the upper drive rod 29 is provided with a thread, and the bottom of the upper drive rod 29 is connected to an auxiliary filter plate 211 by the thread. The inner surface of the bottom of the primary filter tube 22 is provided with a sliding groove 212. The outer side of the auxiliary filter plate 211 is slidably connected to the sliding groove 212. Initially, the auxiliary filter plate 211 is set at the top of the sliding groove 212.

[0025] A secondary filter plate 213 is rotatably connected to the bottom inner surface of the secondary filter tube 23. A middle drive rod 214 is fixedly connected through the middle upper surface of the secondary filter plate 213. The top of the middle drive rod 214 is engaged with the upper drive rod 29. A bonding filter plate 215 is also fixedly connected to the bottom inner surface of the secondary filter tube 23. The bottom surface of the bonding filter plate 215 is bonded to the upper surface of the secondary filter plate 213. A cleaning frame 216 is fixedly sleeved on the bottom outer surface of the middle drive rod 214. The bottom surface of the cleaning frame 216 is provided with bristles. The bristles at the bottom of the cleaning frame 216 are pressed and bonded to the upper surface of the bonding filter plate 215.

[0026] A three-stage filter plate 217 is fixedly connected to the bottom inner surface of the three-stage filter tube 24. A lower drive rod 218 is rotatably connected through the middle upper surface of the three-stage filter plate 217. The top of the lower drive rod 218 is engaged with the bottom of the middle drive rod 214. An agitator 219 is fixedly sleeved on the middle outer surface of the lower drive rod 218.

[0027] The primary filter plate 28 and the auxiliary filter plate 211 are set with the same shape and size, the secondary filter plate 213 and the attached filter plate 215 are set with the same shape and size, and the pore size on the primary filter plate 28, the secondary filter plate 213 and the tertiary filter plate 217 is set to gradually decrease.

[0028] Second embodiment: as follows Figures 1 to 8 As shown, the sealing mechanism 3 in this embodiment includes a first elastic telescopic ring 31, which is fixedly embedded in the bottom of the annular groove 26 of the first-stage filter tube 22. A second elastic telescopic ring 32 is fixedly embedded in the bottom of the first-stage filter tube 22. The bottom surface of the second elastic telescopic ring 32 is set as a rubber surface. The internal cavity of the first elastic telescopic ring 31 is connected to the internal cavity of the second elastic telescopic ring 32.

[0029] The top of the secondary filter tube 23 has a first sealing groove 33. The bottom of the first sealing groove 33 is fixedly embedded with a third elastic expansion ring 34. The upper surface of the third elastic expansion ring 34 is made of rubber. The bottom of the secondary filter tube 23 is fixedly embedded with a fourth elastic expansion ring 35. The internal cavity of the third elastic expansion ring 34 is connected to the internal cavity of the fourth elastic expansion ring 35. The bottom surface of the fourth elastic expansion ring 35 is made of rubber. The upper surface of the tertiary filter tube 24 has a second sealing groove 36. The bottom surface of the second sealing groove 36 is made of rubber.

[0030] During operation, when it is necessary to filter and recycle pharmaceutical wastewater, the tertiary filter tube 24, secondary filter tube 23, and primary filter tube 22 can be sequentially connected by sliding the limiting rod 21. Then, the connecting ring 27 is inserted into the annular groove 26 of the primary filter ring and fixed to the limiting rod 21 with bolts to complete the installation of the entire device. Finally, wastewater is introduced through the feed pipe 221. After being filtered through the three filter tubes, the wastewater is discharged and recycled through the funnel 25 at the bottom. The modular structure significantly reduces the difficulty of overall equipment cleaning, simplifies connection, and facilitates assembly and disassembly. It also reduces the floor space occupied when the equipment is not in use, improving space utilization. The motor 210 is started simultaneously after the wastewater enters the feed pipe 221. The motor 210 rotates in both forward and reverse directions. Upon starting, it drives the upper drive rod 29 to rotate, which in turn drives the primary filter plate 28 to rotate. Simultaneously, the auxiliary filter plate 211 moves intermittently up and down, approaching and moving away from the primary filter plate 28, via a threaded connection. When wastewater passes through the primary filter pipe 22, it is filtered by both the auxiliary filter plate 211 and the primary filter plate 28. The movement of the auxiliary filter plate 211 intermittently compresses any remaining lumpy, unmelted material between itself and the primary filter plate 28. Combined with the continuously rotating primary filter plate 28, this rotational compression process helps break down the unmelted material, preventing the primary filter plate 28 from clogging too quickly during filtration and significantly improving the equipment's single-cycle efficiency. To improve recycling efficiency, wastewater enters the secondary filter tube 23 after preliminary filtration by the primary filter plate 28. The middle drive rod 214 in the secondary filter tube 23 is fixedly connected to the upper drive rod 29. When the upper drive rod 29 rotates, it drives the middle drive rod 214 to rotate, which in turn drives the secondary filter plate 213 to rotate. At this time, the mating filter plate 215 attached to the upper surface of the secondary filter plate 213 is in a fixed state, meaning the filter holes on the secondary filter plate 213 are intermittently closed. Simultaneously, the rotation of the middle drive rod 214 also drives the cleaning frame 216 to rotate. The brushes on the cleaning frame 216 continuously rotate and clean the upper surface of the mating filter plate 215, while the intermittently closed secondary filter plate 213 improves cleaning efficiency. This design avoids the problem of the filter holes on the bonding filter plate 215 being under constant high pressure due to the continuous connection of the secondary filter plate 213, which reduces cleaning efficiency. Simultaneously, when the secondary filter plate 213 is intermittently closed, the water pressure inside the secondary filter tube 23 is increased. This intermittently pressurizes the wastewater passing through the bonding filter plate 215 and the secondary filter plate 213, reducing the probability of clogging of the secondary filter plate 213 and significantly improving the equipment's operational stability. The wastewater filtered by the secondary filter plate 213 enters the tertiary filter tube 24. After being filtered by the tertiary filter plate 217 in the tertiary filter tube 24, the wastewater is discharged into the funnel 25. Simultaneously, the lower drive rod 218 in the tertiary filter tube 24 is fixedly connected to the middle drive rod 214.Therefore, after the motor 210 starts, it will simultaneously drive the lower drive rod 218 to rotate, thereby driving the agitator 219 to rotate, which in turn continuously agitates the wastewater entering the tertiary filter tube 24, reducing the probability of clogging of the tertiary filter plate 217, further extending the overall single working time of the equipment, and improving ease of use. When the connecting ring 27 is installed, it will squeeze the first elastic telescopic ring 31 on the primary filter tube 22, thereby increasing the air pressure in the internal cavity of the first elastic telescopic ring 31, and then transmitting its air pressure to the second elastic telescopic ring 32, causing the second elastic telescopic ring 32 to expand into the first elastic telescopic ring at the top of the secondary filter tube 23. The sealing groove 33 contacts and compresses the third elastic telescopic rod, sealing the space between the primary filter tube 22 and the secondary filter tube 23. Simultaneously, when the second elastic telescopic ring 32 compresses the third elastic telescopic ring 34, the third elastic telescopic ring 34 contracts, transferring its internal air pressure to the fourth elastic telescopic ring 35. This causes the fourth elastic telescopic ring 35 to move into the second sealing groove 36 at the top of the tertiary filter tube 24, completing the seal between the secondary filter tube 23 and the tertiary filter tube 24. This allows for simultaneous sealing of all filter tubes after the equipment is fixedly installed, significantly improving the ease of use of the equipment.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste recovery device for pharmaceutical production comprising a support frame (1), characterized in that: Also includes: Filtering mechanism (2), the filtering mechanism (2) is fixedly installed on the top of the support frame (1); Sealing mechanism (3), the sealing mechanism (3) is fixedly installed inside the filtering mechanism (2); Wherein the filtering mechanism (2) includes a limiting rod (21), the limiting rod (21) is fixedly connected on the edge of the upper surface of the support frame (1), wherein the limiting rod (21) is fixedly arranged with three around the center axis of the support frame (1), the inner side of the limiting rod (21) is slidably inserted into a first filter tube (22), the upper surface of the first filter tube (22) is fixedly connected with a feeding pipe (221), the bottom of the first filter tube (22) is abutted with a second filter tube (23), the bottom of the second filter tube (23) is abutted with a third filter tube (24), the bottom surface of the third filter tube (24) is abutted on the upper surface of the support frame (1), wherein the second filter tube (23) and the third filter tube (24) are slidably inserted into the limiting rod (21) simultaneously.

2. The waste recovery apparatus for pharmaceutical production according to claim 1, characterized in that: The bottom surface of the third filter tube (24) is fixedly connected with a funnel (25), the edge of the upper surface of the first filter tube (22) is provided with a ring groove (26), the inner surface of the ring groove (26) is slidably inserted into a connecting ring (27), and the connecting ring (27) is fixedly connected with the top of the limiting rod (21) through bolts.

3. The waste recovery apparatus for pharmaceutical production according to claim 2, characterized in that: The bottom inner surface of the first filter tube (22) is rotatably connected with a first filter plate (28), the middle upper surface of the first filter plate (28) is fixedly connected with an upper driving rod (29), the top of the upper driving rod (29) is provided through the top of the first filter tube (22), the middle upper surface of the first filter tube (22) is fixedly connected with a motor (210), and the top of the upper driving rod (29) is rotatably connected with the output end of the motor (210).

4. The waste recovery apparatus for pharmaceutical production according to claim 3, characterized in that: The bottom of the upper driving rod (29) is provided with threads, the bottom of the upper driving rod (29) is connected with an auxiliary filter plate (211) through threads, the bottom inner surface of the first filter tube (22) is provided with a sliding groove (212), the outer side of the auxiliary filter plate (211) is slidably connected in the sliding groove (212), and initially the auxiliary filter plate (211) is provided at the top of the sliding groove (212).

5. The waste recovery apparatus for pharmaceutical production according to claim 4, characterized in that: The bottom inner surface of the second filter tube (23) is rotatably connected with a second filter plate (213), the middle upper surface of the second filter plate (213) is fixedly connected with a middle driving rod (214), the top of the middle driving rod (214) is interlocked with the upper driving rod (29), the bottom inner surface of the second filter tube (23) is fixedly connected with a abutting filter plate (215) at the same time, the bottom surface of the abutting filter plate (215) is abutted on the upper surface of the second filter plate (213), the bottom outer surface of the middle driving rod (214) is fixedly sleeved with a cleaning frame (216), the bottom surface of the cleaning frame (216) is provided with bristles, and the bristles of the bottom of the cleaning frame (216) are extruded and abutted on the upper surface of the abutting filter plate (215).

6. The waste recovery apparatus for pharmaceutical production according to claim 5, wherein: The bottom inner surface of the three-stage filtering pipe (24) is fixedly connected with a three-stage filtering plate (217), the middle upper surface of the three-stage filtering plate (217) is rotatably connected with a lower driving rod (218), the top of the lower driving rod (218) is clamped with the bottom of the middle driving rod (214), and the middle outer surface of the lower driving rod (218) is fixedly sleeved with an agitating frame (219).

7. The waste recovery apparatus for pharmaceutical production according to claim 6, characterized in that: The first-stage filtering plate (28) and the auxiliary filtering plate (211) are the same in shape and size, the second-stage filtering plate (213) and the adhering filtering plate (215) are the same in shape and size, and the aperture of the first-stage filtering plate (28), the second-stage filtering plate (213) and the third-stage filtering plate (217) is gradually reduced.

8. The waste recovery apparatus for pharmaceutical production according to claim 7, characterized in that: The sealing mechanism (3) comprises a first elastic expansion ring (31), the first elastic expansion ring (31) is fixedly embedded in the bottom of the ring groove (26) of the first-stage filtering pipe (22), the bottom of the first-stage filtering pipe (22) is fixedly embedded with a second elastic expansion ring (32), the bottom surface of the second elastic expansion ring (32) is provided as a rubber surface, and the internal cavities of the first elastic expansion ring (31) and the second elastic expansion ring (32) are communicated.

9. The waste recovery apparatus for pharmaceutical production according to claim 8, characterized in that: The top of the second-stage filtering pipe (23) is provided with a first sealing groove (33), the bottom of the first sealing groove (33) is fixedly embedded with a third elastic expansion ring (34), the upper surface of the third elastic expansion ring (34) is provided as a rubber surface, the bottom of the second-stage filtering pipe (23) is fixedly embedded with a fourth elastic expansion ring (35), the internal cavities of the third elastic expansion ring (34) and the fourth elastic expansion ring (35) are communicated, and the upper surface of the third-stage filtering pipe (24) is provided with a second sealing groove (36).

10. The waste recovery apparatus for pharmaceutical production according to claim 9, wherein: The bottom surface of the fourth elastic expansion ring (35) and the bottom surface of the second sealing groove (36) are both provided as rubber surfaces.

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