A pharmaceutical preparation wastewater treatment device and a treatment tank

Abstract

The present application relates to the technical field of pharmaceutical waste purification treatment, and particularly relates to a wastewater treatment device for pharmaceutical preparation and a treatment tank. The treatment device comprises a tank body, an inner cylinder movably arranged in the tank body, and first filter holes uniformly distributed on the inner cylinder; a driving device for driving the inner cylinder to rotate is arranged in the tank body, the driving device comprises a rotary driving assembly and an eccentric coupling, and the two ends of the eccentric coupling are connected with the inner cylinder and the driving end of the rotary driving assembly respectively. A collecting mechanism is further arranged in the tank body, and the collecting mechanism comprises a piston plate and a lifting assembly; the piston plate is slidingly installed in the inner cylinder, and second filter holes are formed in the piston plate. The present application realizes the function of controlling the flocculation reaction of particles in the wastewater in the inner cylinder, achieves the effect of concentrating impurities in the inner cylinder, and solves the problem of damage to equipment parts caused by long-term mixing of the whole shaking preparation treatment tank in the traditional equipment.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical waste purification and treatment technology, specifically to a wastewater treatment device and treatment tank for pharmaceutical preparation. Background Technology

[0002] In the field of pharmaceutical intermediate synthesis, waste purification and treatment generally face technical bottlenecks. The traditional method involves installing a stirring rod inside the preparation tank to continuously stir the raw materials and waste inside the tank for thorough mixing, facilitating subsequent processing. However, installing a stirring rod in the current method not only occupies part of the space inside the preparation tank, thus reducing the effective processing volume, but also increases the complexity of the equipment, requiring regular cleaning and impurity removal, and increasing equipment maintenance costs.

[0003] To this end, Chinese Patent No. CN118420065B discloses a waste purification and treatment device generated during the synthesis of pharmaceutical intermediates. It relies on the drive of a drive motor and the position limit of the limit buckle when rotating to ensure that the wastewater and waste materials input into the preparation tank are fully mixed with the flocculant. Compared with the method of installing a stirring rod, the uniform shaking of the entire preparation tank can save internal space, increase the processing volume, and avoid the problem of waste material remaining on the surface of the stirring rod when cleaning the inside of the preparation tank later.

[0004] However, existing equipment has limitations in achieving uniform mixing of wastewater and flocculant. Relying on a drive motor and limit switches to move the preparation tank, the amplitude and frequency of the movement are restricted by the structure, making it impossible to flexibly adjust according to waste viscosity and flocculant dosage. This easily leads to insufficient mixing in certain areas, resulting in incomplete flocculation and some impurities failing to flocculate effectively, thus affecting subsequent purification. Long-term reliance on overall shaking of the preparation tank for mixing generates continuous vibration and impact on the drive motor, limit switches, and tank connections, increasing the probability of equipment failure and maintenance costs. Summary of the Invention

[0005] To address the aforementioned issues, a wastewater treatment device and treatment tank for pharmaceutical preparation are provided. The device solves the problem of damage to equipment components caused by the long-term reliance on overall shaking of the preparation treatment tank for mixing in traditional equipment through the tank body, inner cylinder, and drive device.

[0006] To address the problems of existing technologies, the present invention provides a wastewater treatment device for pharmaceutical preparation, comprising a tank body, an inner cylinder movably disposed within the tank body, and a first filter hole evenly distributed on the inner cylinder body; the tank body is provided with a driving device for driving the inner cylinder to rotate, the driving device comprising a rotary driving assembly and an eccentric coupling, the two ends of the eccentric coupling being respectively connected to the inner cylinder and the driving end of the rotary driving assembly.

[0007] Preferably, the tank body is further provided with a collection mechanism, which includes a piston plate and a lifting assembly; the piston plate is slidably installed in the inner cylinder, and a second filter hole for liquid to pass through is provided on the piston plate; the lifting assembly is used to drive the piston plate to move in the inner cylinder along the axial direction of the inner cylinder.

[0008] Preferably, the piston plate is provided with a limiting frame; the lifting assembly includes a connecting plate for driving the piston plate, the connecting plate is located between the limiting frame and the piston plate, and a ball bearing is rotatably disposed on the connecting plate, the ball bearing being in rolling connection with the piston plate and the limiting frame.

[0009] Preferably, the lifting assembly further includes a screw and a nut; the screw is connected to a connecting disc, the nut is rotatably disposed inside the tank, and the nut is threadedly connected to the screw; the tank is also provided with a transmission assembly, and when the rotation drive assembly drives the inner cylinder to rotate through the eccentric coupling, the inner cylinder drives the nut to rotate through the transmission assembly.

[0010] Preferably, the transmission assembly includes a connecting rod, a lever, and a connecting frame; the connecting rod is connected to a nut; the lever is connected to the connecting rod; the connecting frame is connected to the inner cylinder, and a straight groove extending radially along the inner cylinder is provided on the connecting frame, and the lever slides in cooperation with the straight groove.

[0011] Preferably, a filter cloth is sleeved on the outer side of the inner cylinder; a cleaning pipe for rinsing the filter cloth is provided inside the tank, and the cleaning pipe is located outside the inner cylinder, and the cleaning pipe is provided with at least three nozzles.

[0012] Preferably, a support is fixedly installed inside the tank, a movable frame is movably installed on the support, and a striking block is provided on the movable frame; an extension rod is provided on the eccentric coupling, and a push rod for pushing the movable frame to move is provided on the extension rod; a boss is provided on the inner cylinder, and a control component for controlling the movable frame to move toward the boss is provided on the support.

[0013] Preferably, the control component includes a guide rod and a first elastic element; the guide rod is connected to the movable frame and slides with the support; the first elastic element is sleeved on the guide rod, and both ends of the first elastic element are connected to the movable frame and the support respectively; the support is provided with a limiting component for restricting the movement of the movable frame toward the boss; there are four movable frames, and the guide rods on two adjacent movable frames are perpendicular to each other.

[0014] Preferably, the limiting component includes a support rod and a second elastic element; the support rod is movably mounted on the bracket, and the support rod is provided with a limiting block for limiting the extension of the movable frame; the two ends of the second elastic element are respectively connected to the support rod and the bracket.

[0015] A wastewater treatment tank for pharmaceutical preparation, comprising the aforementioned wastewater treatment device for pharmaceutical preparation.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention achieves the function of controlling the flocculation reaction of particles in wastewater within the inner cylinder through a tank, inner cylinder, and drive device. This concentrates impurities within the inner cylinder for centralized treatment. Furthermore, the eccentric rotation of the inner cylinder controls the wastewater flow during treatment. Compared to traditional stirring rods, controlling the rotation speed of the inner cylinder ensures sufficient wastewater reaction without generating excessive shear force that could affect the flocculation effect. This solves the problem of damage to equipment components caused by the long-term reliance on overall shaking of the treatment tank for mixing in traditional equipment. Compared to traditional stirring rods, the eccentric rotation of the inner cylinder does not generate excessive shear force, avoiding disruption of the flocculation effect and ensuring a thorough flocculation reaction. The flocculated impurities are trapped within the inner cylinder. This ensures both effective wastewater treatment and improved convenience of impurity handling, making it suitable for the treatment needs of pharmaceutical preparation wastewater.

[0018] 2. This invention utilizes a piston plate and a lifting assembly to push impurities upwards, achieving centralized impurity treatment and solving the technical problem of impurities easily adhering to the inner cylinder wall and being inconvenient to clean in traditional devices. When treatment is complete or impurities need to be discharged, the lifting assembly drives the piston plate to move along the axis of the inner cylinder. During the movement, the piston plate pushes the flocculated impurities inside the inner cylinder to a designated position, ensuring that the impurities are collected centrally. At the same time, the sliding of the piston plate can effectively scrape off impurities adhering to the inner cylinder wall, avoiding residue. Combined with the eccentric rotation of the inner cylinder, the wastewater and the reagent fully contact and react. The overall structure works in synergy, improving the convenience of impurity cleaning and ensuring the overall purification effect of wastewater treatment, facilitating subsequent treatment of pharmaceutical preparation wastewater.

[0019] 3. This invention achieves the function of driving the piston plate to rise and fall while the inner cylinder rotates, thus achieving the effect of slowly pushing the piston upward to concentrate impurities while disturbing the liquid. When the rotary drive assembly drives the inner cylinder to rotate through the eccentric coupling, the inner cylinder drives the nut to rotate through the transmission assembly. The rotation of the nut drives the screw to move along the axial direction, thereby driving the connecting plate and the piston plate to rise and fall synchronously. This achieves synchronous control of the rotation of the inner cylinder and the rise and fall of the piston plate, eliminating the need for an additional independent lifting drive source, simplifying the device structure and reducing energy consumption. Attached Figure Description

[0020] Figure 1 This invention relates to a wastewater treatment tank for pharmaceutical preparation.

[0021] Figure 2 This is a three-dimensional schematic diagram of the internal structure of a wastewater treatment tank for drug preparation according to the present invention.

[0022] Figure 3 This is a three-dimensional schematic diagram of the inner cylinder and collection mechanism of a wastewater treatment device for drug preparation according to the present invention.

[0023] Figure 4 This is a three-dimensional schematic diagram of the internal structure of the inner cylinder of a wastewater treatment device for drug preparation according to the present invention.

[0024] Figure 5 This is a three-dimensional exploded view of the lifting assembly and transmission assembly of a wastewater treatment device for drug preparation according to the present invention.

[0025] Figure 6 This is a three-dimensional schematic diagram of the lifting assembly of a wastewater treatment device for drug preparation according to the present invention.

[0026] Figure 7 This is a three-dimensional schematic diagram of the support, control component, and limiting component of a wastewater treatment device for drug preparation according to the present invention, when they are engaged with the boss.

[0027] Figure 8 This is a three-dimensional schematic diagram of the support, control components, and limiting components of a wastewater treatment device for drug preparation according to the present invention.

[0028] Figure 9 This is a three-dimensional schematic diagram of a set of opposing movable frames of a wastewater treatment device for pharmaceutical preparation according to the present invention.

[0029] Figure 10 This is the invention Figure 9 A magnified view of a portion of point A in the middle.

[0030] The diagram is labeled as follows: 1. Tank; 11. Cleaning pipe; 111. Nozzle; 12. Support; 121. Movable frame; 1211. Striking block; 13. Control component; 131. Guide rod; 132. First elastic element; 14. Restriction component; 141. Support rod; 1411. Limiting block; 142. Second elastic element; 2. Inner cylinder; 21. Filter cloth; 22. Boss; 3. Drive device; 31. Rotary drive component; 32. Eccentric coupling; 321. Extension rod; 3211. Push rod; 4. Collection mechanism; 41. Piston plate; 411. Limiting frame; 42. Lifting component; 421. Connecting plate; 4211. Ball bearing; 422. Screw; 423. Nut; 43. Transmission component; 431. Connecting rod; 432. Lever; 433. Connecting frame; 4331. Straight groove. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 3A wastewater treatment device for pharmaceutical preparation includes a tank 1, an inner cylinder 2 movably disposed inside the tank 1, and a first filter hole evenly distributed on the inner cylinder 2; the tank 1 is provided with a driving device 3 for driving the inner cylinder 2 to rotate, the driving device 3 includes a rotation driving component 31 and an eccentric coupling 32, the two ends of the eccentric coupling 32 being connected to the inner cylinder 2 and the driving end of the rotation driving component 31, respectively.

[0033] This invention achieves the function of controlling the flocculation reaction of particles in wastewater in the inner cylinder 2 through the tank body 1, inner cylinder 2 and driving device 3, so as to concentrate impurities in the inner cylinder 2 and then treat the impurities in a centralized manner. In addition, the wastewater flow is controlled by the eccentric rotation of the inner cylinder 2 during the treatment process. Compared with the disturbance of the traditional stirring rod, controlling the rotation speed of the inner cylinder 2 allows the wastewater to react fully without generating excessive shear force that would affect the flocculation effect. During operation, after the rotary drive assembly 31 is started, it drives the inner cylinder 2 inside the tank 1 to rotate through the eccentric coupling 32. Due to the action of the eccentric coupling 32, the inner cylinder 2 will rotate eccentrically, thereby controlling the flow of wastewater in the tank 1. After the wastewater enters the tank 1, it flows slowly under the action of the eccentric rotation of the inner cylinder 2. The particles in the wastewater undergo a full flocculation reaction in the inner cylinder 2. Compared with the disturbance of the traditional stirring rod, the eccentric rotation of the inner cylinder 2 will not generate excessive shear force, thus avoiding damage to the flocculation effect and ensuring that the flocculation reaction is fully carried out. The flocculated impurities will be intercepted in the inner cylinder 2. The first filter holes evenly distributed on the inner cylinder 2 allow the treated clean water to pass through, realizing the separation of impurities and clean water. This facilitates the centralized treatment of impurities intercepted in the inner cylinder 2, which not only ensures the wastewater treatment effect but also improves the convenience of impurity treatment, thus meeting the treatment needs of wastewater for pharmaceutical preparation.

[0034] Reference Figures 1 to 4 The tank body 1 is also provided with a collection mechanism 3, which includes a piston plate 31 and a lifting assembly 32. The piston plate 31 is slidably installed in the inner cylinder 2, and a second filter hole for liquid to pass through is opened on the piston plate 31. The lifting assembly 32 is used to drive the piston plate 31 to move along the axis of the inner cylinder 2 in the inner cylinder 2.

[0035] This invention utilizes a piston plate 31 and a lifting assembly 32 to push impurities upwards, achieving centralized impurity treatment and solving the technical problem of impurities easily adhering to the inner cylinder 2 wall and being inconvenient to clean in traditional devices. During operation, flocculant is injected into the inner cylinder 2 through a pipeline. After wastewater enters the inner cylinder 2, it undergoes a flocculation reaction with the flocculant, causing impurities in the water to aggregate and form flocs. The liquid can flow out through the second filter hole, while the impurities are intercepted inside the inner cylinder 2. When treatment is complete or impurities need to be discharged, the lifting assembly 32 drives the piston plate 31 to move along the axis of the inner cylinder 2. During this movement, the piston plate 31 pushes the flocculated impurities inside the inner cylinder 2 to a designated location, ensuring that the impurities are collected centrally. Simultaneously, the sliding of the piston plate 31 effectively scrapes away impurities adhering to the inner cylinder 2 wall, preventing residue. Combined with the eccentric rotation of the inner cylinder 2, this ensures sufficient contact and reaction between the wastewater and the reagent. The overall structure works in synergy, improving the convenience of impurity cleaning and ensuring the overall purification effect of wastewater treatment, facilitating subsequent treatment of pharmaceutical preparation wastewater.

[0036] Reference Figure 1 , Figure 4 and Figure 5 The piston plate 31 is provided with a limiting frame 311; the lifting assembly 32 includes a connecting plate 321 for driving the piston plate 31. The connecting plate 321 is located between the limiting frame 311 and the piston plate 31. A ball bearing 3211 is rotatably provided on the connecting plate 321. The ball bearing 3211 is in rolling connection with the piston plate 31 and the limiting frame 311.

[0037] This invention achieves the function of smoothly raising and lowering the piston plate 31, thus moving the piston plate 31 to push out impurities. During operation, when the lifting assembly 32 drives the connecting plate 321 to move, the balls 3211 roll between the piston plate 31 and the limiting frame 311, converting sliding friction into rolling friction. This significantly reduces the frictional resistance during the raising and lowering of the piston plate 31, preventing the piston plate 31 from jamming, reducing structural wear, and extending the service life of the device. The connecting plate 321 drives the piston plate 31 to move smoothly along the axis of the inner cylinder 2 through the balls 3211, concentrating and pushing out the flocculated impurities in the inner cylinder 2. Combined with the eccentric rotation of the inner cylinder 2 and the filtration effect of the first and second filter holes, this ensures thorough cleaning of impurities and full purification of wastewater, improving the operational stability and wastewater treatment efficiency of the device, and meeting the treatment needs of wastewater from pharmaceutical preparation.

[0038] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6The lifting assembly 32 further includes a screw 322 and a nut 323; the screw 322 is connected to the connecting plate 321, and the nut 323 is rotatably disposed inside the tank body 1, and the nut 323 is threadedly connected to the screw 322; the tank body 1 is also provided with a transmission assembly 33, and when the rotation drive assembly 31 drives the inner cylinder 2 to rotate through the eccentric coupling 32, the inner cylinder 2 drives the nut 323 to rotate through the transmission assembly 33.

[0039] This invention enables the piston plate 31 to rise and fall while the inner cylinder 2 rotates, achieving the effect of slowly pushing the piston upward to concentrate impurities while disturbing the liquid. The tank 1 is equipped with a base for supporting the nut 323, which is rotatably mounted on the base. During operation, when the rotary drive assembly 31 drives the inner cylinder 2 to rotate via the eccentric coupling 32, the inner cylinder 2 drives the nut 323 to rotate via the transmission assembly 33. The rotation of the nut 323 drives the screw 322 to move along the axial direction, thereby synchronously raising and lowering the connecting plate 321 and the piston plate 31. This achieves synchronous control of the rotation of the inner cylinder 2 and the rise and fall of the piston plate 31, eliminating the need for an additional independent lifting drive source, simplifying the device structure, reducing energy consumption, and ensuring that the rise and fall of the piston plate 31 are synchronized with the rotation of the inner cylinder 2. This allows the impurity pushing and flocculation reaction to proceed in coordination. The deceleration transmission of the nut 323 and the screw 322 improves the smoothness of the piston plate 31's movement and ensures that the wastewater is fully mixed with the flocculant before the flocculants are completely collected. Furthermore, the rolling connection of the ball bearings 3211 ensures that the piston plate 31 rises and falls smoothly without jamming, thoroughly pushing and concentrating the flocculated impurities in the inner cylinder 2. Combined with the filtration effect of the first and second filter holes, it achieves efficient purification of wastewater and centralized treatment of impurities.

[0040] Reference Figure 1 , Figure 4 , Figure 5 and Figure 6 The transmission assembly 33 includes a connecting rod 331, a lever 332, and a connecting frame 333; the connecting rod 331 is connected to a nut 323; the lever 332 is connected to the connecting rod 331; the connecting frame 333 is connected to the inner cylinder 2, and a straight groove 3331 extending radially along the inner cylinder 2 is provided on the connecting frame 333, and the lever 332 slides in cooperation with the straight groove 3331.

[0041] This invention enables the nut 323 to rotate when the inner cylinder 2 rotates. During operation, when the rotation drive assembly 31 drives the inner cylinder 2 to rotate via the eccentric coupling 32, the inner cylinder 2 drives the connecting frame 333 to rotate synchronously. The straight groove 3331 on the connecting frame 333 pushes the lever 332 to rotate through the groove wall. The lever 332 drives the connecting rod 331 to rotate, which in turn drives the nut 323 to rotate. The rotation of the nut 323 drives the screw 322 to move along the axial direction, and then drives the piston plate 31 to rise and fall synchronously through the connecting plate 321 and the ball bearing 3211. This achieves automatic linkage between the rotation of the inner cylinder 2 and the rising and falling of the piston plate 31, eliminating the need for additional independent drive, simplifying the overall structure, and improving the degree of automation. At the same time, the straight groove 3331 extends radially along the inner cylinder 2, ensuring that the lever 332 slides smoothly during rotation.

[0042] Reference Figure 2 and Figure 3 The inner cylinder 2 is fitted with a filter cloth 21 on its outer side; the tank body 1 is provided with a cleaning pipe 11 for rinsing the filter cloth 21, and the cleaning pipe 11 is located outside the inner cylinder 2, and the cleaning pipe 11 is provided with at least three nozzles 111.

[0043] This invention achieves automatic cleaning of the inner cylinder 2 and the outer filter cloth 21 through the filter cloth 21 and the cleaning pipe 11, solving the technical problem of easy clogging of the filter cloth 21 and the first filter hole by impurities in traditional wastewater treatment devices. Multiple nozzles 111 are equidistantly distributed along the extension direction of the cleaning pipe 11. During device operation, the inner cylinder 2 rotates eccentrically under the drive of the rotary drive assembly 31 and the eccentric coupling 32. Wastewater is discharged after being filtered through the inner cylinder 2 and the filter cloth 21, preventing impurities from overflowing from the first filter hole under pressure. After long-term use, impurities will adhere to the surface of the filter cloth 21. At this time, water is supplied to the nozzles 111 through the cleaning pipe 11, and the nozzles 111 rinse the filter cloth 21. Combined with the eccentric rotation of the inner cylinder 2, this ensures that all parts of the filter cloth 21 are evenly rinsed, promptly removing the attached impurities, keeping the filter cloth 21 unobstructed, preventing clogging and ensuring the wastewater filtration effect. This guarantees continuous and stable operation of the device and improves the treatment efficiency and effect of pharmaceutical preparation wastewater.

[0044] Reference Figure 7 and Figure 8 A bracket 12 is fixedly installed inside the tank body 1, and a movable frame 121 is movably installed on the bracket 12. A striking block 1211 is provided on the movable frame 121. An extension rod 321 is provided on the eccentric coupling 32, and a push rod 3211 for pushing the movable frame 121 to move is provided on the extension rod 321. A boss 22 is provided on the inner cylinder 2, and a control component 13 for controlling the movable frame 121 to move toward the boss 22 is provided on the bracket 12.

[0045] This invention achieves the function of automatically knocking off impurities from the filter cloth 21 and inner cylinder 2, thus avoiding impurity residue and solving the technical problem in traditional devices where impurities easily adhere to the filter cloth 21 and inner cylinder 2, affecting wastewater treatment efficiency. When the eccentric coupling 32 drives the inner cylinder 2 to rotate, the extension rod 321 rotates synchronously with the eccentric coupling 32, and the push rod 3211 rotates accordingly, pushing the movable frame 121 to move on the support 12. Under the action of the control component 13, the movable frame 121 drives the knocking block 1211 to reciprocate towards the boss 22 on the inner cylinder 2. The knocking block 1211 continuously knocks on the boss 22 and the inner cylinder 2, using vibration to shake off impurities attached to the inner cylinder 2 and filter cloth 21, avoiding impurity adhesion and blockage that affects the filtration effect. Combined with the rinsing action of the cleaning pipe 11, it further ensures the unobstructed flow between the inner cylinder 2 and the filter cloth 21, ensuring the continuous and stable wastewater treatment process.

[0046] Reference Figures 7 to 10 The control component 13 includes a guide rod 131 and a first elastic element 132; the guide rod 131 is connected to the movable frame 121 and slides with the support 12; the first elastic element 132 is sleeved on the guide rod 131, and both ends of the first elastic element 132 are connected to the movable frame 121 and the support 12 respectively; the support 12 is provided with a limiting component 14 for limiting the movement of the movable frame 121 toward the boss 22; there are four movable frames 121, and the guide rods 131 on two adjacent movable frames 121 are perpendicular to each other.

[0047] This invention achieves the function of multi-directional uniform tapping and efficient shaking off of impurities from the inner cylinder 2 and filter cloth 21. When the eccentric coupling 32 drives the extension rod 321 and push rod 3211 to rotate, the push rod 3211 contacts the movable frame 121 and pushes the movable frame 121 to reset. At this time, the limiting component 14 releases the movement restriction of the movable frame 121 that is not adjacent to the movable frame 121. The movable frame 121 that has been released from movement restriction extends under the elastic force of the first elastic element 132, driving the tapping block 1211 on it to tap the boss 22 on the inner cylinder 2. As the eccentric coupling 32 continues to rotate, the push rod 3211 pushes different movable frames 121 to reset in sequence, and the limiting component 14 simultaneously releases the restriction of the corresponding movable frame 121. Under the alternating action of the first elastic element 132 and the push rod 3211, the frame 121 extends and strikes the boss 22 from four mutually perpendicular directions. The vibration shakes off all the impurities attached to the inner cylinder 2 and the outer filter cloth 21. Combined with the rinsing action of the cleaning pipe 11, it further ensures that the filter cloth 21 is unobstructed and avoids impurities from clogging and affecting the filtration effect. At the same time, the multi-directional striking design of the four movable frames 121 makes the force evenly distributed in all positions of the inner cylinder 2, which not only ensures that the impurities are thoroughly cleaned, but also avoids damage to the inner cylinder 2. The coordinated operation of the various structures improves the stability of the device operation and the efficiency of wastewater treatment, and is suitable for the treatment needs of wastewater used in pharmaceutical preparation.

[0048] Reference Figures 7 to 10 The limiting component 14 includes a support rod 141 and a second elastic element 142; the support rod 141 is movably mounted on the bracket 12, and the support rod 141 is provided with a limiting block 1411 for limiting the extension of the movable frame 121; the two ends of the second elastic element 142 are respectively connected to the support rod 141 and the bracket 12.

[0049] This invention achieves the function of limiting the extension of the movable frame 121. The limiting block 1411 has an inclined surface on the side near the boss 22. When the push rod 3211 on the extension rod 321 pushes the movable frame 121 to reset, the push rod 3211 contacts the movable frame 121 and pushes the movable frame 121 to move, and the first elastic element 132 that cooperates with it will also be compressed by force. After the movable frame 121 contacts the limiting block 1411, it presses the inclined surface of the limiting block 1411, thereby pushing the support rod 141 to move. After the movable frame 121 on the opposite side separates from the limiting block 1411, the restriction on the movable frame 121 is released. At this time, the movable frame 121 extends under the elastic force of the first elastic member 132, driving the striking block 1211 to strike the boss 22 of the inner cylinder 2. After the movable frame 121 is reset by pressure, the movable frame 121 on the opposite side extends under the action of the first elastic member 132 and also separates from the limiting block 1411. The support rod 141 resets under the elastic force of the second elastic member 142, thereby re-restricting the reset movable frame 121.

[0050] Reference Figure 1 and Figure 2 A wastewater treatment tank for pharmaceutical preparation, comprising the aforementioned wastewater treatment device for pharmaceutical preparation.

[0051] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A wastewater treatment device for pharmaceutical preparation, characterized in that, Includes a tank body (1), and an inner cylinder (2) is movably disposed inside the tank body (1), and the inner cylinder (2) has first filter holes evenly distributed on it; The tank (1) is provided with a drive device (3) for driving the inner cylinder (2) to rotate. The drive device (3) includes a rotary drive assembly (31) and an eccentric coupling (32). The two ends of the eccentric coupling (32) are respectively connected to the inner cylinder (2) and the drive end of the rotary drive assembly (31).

2. The wastewater treatment device for pharmaceutical preparation according to claim 1, characterized in that, The tank (1) is also provided with a collection mechanism (4), which includes a piston plate (41) and a lifting assembly (42). The piston plate (41) is slidably installed in the inner cylinder (2), and a second filter hole for liquid to pass through is provided on the piston plate (41); The lifting assembly (42) is used to drive the piston plate (41) to move in the inner cylinder (2) along the axis of the inner cylinder (2).

3. The wastewater treatment device for pharmaceutical preparation according to claim 2, characterized in that, The piston plate (41) is provided with a limiting bracket (411). The lifting assembly (42) includes a connecting plate (421) for driving the piston plate (41). The connecting plate (421) is located between the limiting frame (411) and the piston plate (41). A ball bearing (4211) is rotatably disposed on the connecting plate (421), and the ball bearing (4211) is in rolling connection with the piston plate (41) and the limiting frame (411).

4. The wastewater treatment device for pharmaceutical preparation according to claim 3, characterized in that, The lifting assembly (42) also includes a screw (422) and a nut (423); The screw (422) is connected to the connecting plate (421), and the nut (423) is rotatably disposed inside the tank (1), and the nut (423) is threadedly connected to the screw (422); The tank (1) is also equipped with a transmission assembly (43). When the rotation drive assembly (31) drives the inner cylinder (2) to rotate through the eccentric coupling (32), the inner cylinder (2) drives the nut (423) to rotate through the transmission assembly (43).

5. The wastewater treatment device for pharmaceutical preparation according to claim 4, characterized in that, The transmission assembly (43) includes a connecting rod (431), a lever (432), and a connecting frame (433). The connecting rod (431) is connected to the nut (423); The lever (432) is connected to the connecting rod (431); The connecting frame (433) is connected to the inner cylinder (2), and a straight groove (4331) extending radially along the inner cylinder (2) is provided on the connecting frame (433), and the lever (432) slides in cooperation with the straight groove (4331).

6. The wastewater treatment device for pharmaceutical preparation according to claim 1, characterized in that, The outer side of the inner cylinder (2) is fitted with a filter cloth (21); The tank (1) is provided with a cleaning pipe (11) for rinsing the filter cloth (21), and the cleaning pipe (11) is located outside the inner cylinder (2). The cleaning pipe (11) is provided with at least three nozzles (111).

7. The wastewater treatment device for pharmaceutical preparation according to claim 1, characterized in that, A bracket (12) is fixedly installed inside the tank (1), and a movable frame (121) is movably installed on the bracket (12), and a striking block (1211) is provided on the movable frame (121). The eccentric coupling (32) is provided with an extension rod (321), and the extension rod (321) is provided with a push rod (3211) for pushing the movable frame (121) to move. The inner cylinder (2) is provided with a boss (22), and the bracket (12) is provided with a control component (13) for controlling the movable frame (121) to move toward the boss (22).

8. The wastewater treatment device for pharmaceutical preparation according to claim 7, characterized in that, The control component (13) includes a guide rod (131) and a first elastic element (132). The guide rod (131) is connected to the movable frame (121), and the guide rod (131) and the bracket (12) are in sliding fit; The first elastic element (132) is sleeved on the guide rod (131), and the two ends of the first elastic element (132) are respectively connected to the movable frame (121) and the bracket (12); The bracket (12) is provided with a limiting component (14) for restricting the movement of the movable frame (121) toward the boss (22). The movable frame (121) is provided in four parts, and the guide rods (131) on two adjacent movable frames (121) are perpendicular to each other.

9. A wastewater treatment device for pharmaceutical preparation according to claim 8, characterized in that, The limiting component (14) includes a support rod (141) and a second elastic element (142). The support rod (141) is movably mounted on the bracket (12), and the support rod (141) is provided with a limiting block (1411) for limiting the extension of the movable frame (121). The two ends of the second elastic element (142) are connected to the support rod (141) and the bracket (12) respectively.

10. A wastewater treatment tank for pharmaceutical preparation, characterized in that, Includes a wastewater treatment device for pharmaceutical preparation as described in any one of claims 1 to 9.

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