A catalyst feeding device for pharmaceutical intermediates
By using a vibrating motor and spring-driven guide plate base, the problem of powdered catalyst residue in the storage tank is solved, enabling complete catalyst transport and convenient cleaning, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU COBEN PHARMA CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-06-09
AI Technical Summary
In the existing technology, when the fixed inclined storage tank structure relies on gravity to transport easily adsorbed and easily agglomerated powder catalysts, there are problems of catalyst residue and cleaning difficulty, resulting in waste of precious metals and increased costs.
The guide plate base, driven by a vibrating motor and spring, allows the catalyst to be conveyed along the inclined plane. Combined with the stirring paddle and spiral discharge rod, this ensures that the catalyst completely enters the feeding tank and avoids residue.
This achieves complete catalyst delivery, reduces precious metal waste and cleaning difficulties, lowers production costs, and improves the operating efficiency of the unit.
Smart Images
Figure CN224332105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical production auxiliary equipment technology, and more specifically, to a catalyst dosing device for pharmaceutical intermediates. Background Technology
[0002] Catalyst dosing devices are specialized equipment used in the pharmaceutical, chemical and other fields to precisely add catalysts. Their core function is to ensure the accurate metering and stable delivery of catalysts, thereby optimizing reaction conditions, improving production efficiency, reducing production costs, and ensuring the stability of product quality. The design of catalyst dosing devices must take into account the physicochemical properties of the catalyst, such as particle size, flowability, and corrosivity, to ensure the reliable operation and long-term stability of the device.
[0003] For example, Chinese Patent Publication No. CN202420434883.6 discloses a catalyst dosing device in the synthesis process of pharmaceutical intermediates. The device includes a base, with a lifting hydraulic cylinder fixedly mounted on the upper surface of the base. A dosing device body is fixedly mounted at one end of the lifting hydraulic cylinder, and a power supply box is fixedly mounted on one side of the dosing device body. This catalyst dosing device, through the coordinated arrangement of the lifting hydraulic cylinder, allows for height adjustment of the dosing device body by adjusting the lifting hydraulic cylinder. The device also includes a power supply box, a drying lamp, a first motor, a first transmission rod, and a spiral stirring rod. During use, the drying lamp is electrically connected to the power supply box, and the first motor is connected to the power source to drive the first transmission rod and the spiral stirring rod, ensuring sufficient contact between the catalyst and the heat source of the drying lamp, thus preventing the catalyst from becoming damp and clumping.
[0004] However, the above-mentioned technical solutions typically employ a storage tank structure with a fixed inclined plane, relying on gravity to allow the catalyst to slide down the inclined plane into the feeding tank. However, this passive conveying method has obvious drawbacks in practical applications: on the one hand, for easily adsorbed and easily agglomerated powder catalysts (such as palladium on carbon, organometallic compounds, etc.), it is difficult to achieve complete conveying by gravity alone, resulting in catalyst residues easily forming at the bottom of the storage tank and the junction of the inclined plane, causing waste of precious metal catalysts and increasing costs; on the other hand, when different catalysts need to be added, the inside of the adding device needs to be cleaned in advance, and the large amount of catalyst residue in the storage tank significantly increases the difficulty of cleaning for the staff, making it inconvenient for subsequent cleaning. Utility Model Content
[0005] The main objective of this invention is to provide a catalyst dosing device for pharmaceutical intermediates, which effectively solves the problem of the commonly used fixed inclined storage tank structure in the background technology, which relies on gravity to make the catalyst slide down the inclined surface to the feeding tank. However, this passive conveying method has obvious defects in practical applications: on the one hand, for easily adsorbed and easily agglomerated powder catalysts (such as palladium on carbon, organometallic compounds, etc.), it is difficult to achieve complete conveying by gravity alone, resulting in catalyst residues easily forming at the bottom of the storage tank and the junction of the inclined surface, causing waste of precious metal catalysts and increasing costs; on the other hand, when different catalysts need to be added, the inside of the dosing device needs to be cleaned in advance, and the large amount of catalyst residue in the storage tank significantly increases the difficulty of cleaning for the staff, making it inconvenient for subsequent cleaning.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a catalyst dosing device for pharmaceutical intermediates, comprising a base, on which a storage tank and a feeding tank are provided. A stirring paddle and a spiral discharge rod are rotatably arranged in the storage tank and the feeding tank, respectively. A motor is provided on one side of both the stirring paddle and the spiral discharge rod. A guide plate and a heat dissipation window are provided on the lower side of the inner cavity of the storage tank. A vibrating motor is provided on the guide plate. Several guide grooves are provided on the inner wall of the lower side of the storage tank. Several sealing layers are fixedly provided on the inner wall surface of the storage tank that is in contact with the guide plate. A feed inlet is provided on one side of the storage tank, and a feeding pipe is provided on one side of the feeding tank. A feeding port is provided between the storage tank and the feeding tank.
[0007] Preferably, the motor is fixedly mounted on the base, and the two sides of the feeding port are respectively connected to the storage tank and the feeding trough.
[0008] Preferably, the guide plate includes a guide plate base, and the side of the guide plate base away from the vibrating motor is provided with an inclined surface. A number of guide slides and a number of springs are fixedly provided on the outer wall surface of the side of the guide plate base away from the inclined surface.
[0009] Preferably, the vibration motor is fixedly installed on the outer wall surface of one side below the guide plate base, and the height of the inclined surface is higher than the height of the inner wall surface of the bottom side of the feed port.
[0010] Preferably, a portion of the guide slide pin slides within the guide groove.
[0011] Preferably, the spring is fixedly installed on the inner wall of the bottom side of the storage tank on the side away from the guide plate base.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] (1) The present invention uses a vibrating motor and spring to vibrate the guide plate base, thereby causing the catalyst to move along the inclined surface to the feed port through the vibrating guide plate base, and then enter the feed trough through the feed port. The catalyst is then discharged through the rotating spiral discharge rod and transported to the feed pipe. Subsequently, the catalyst is added to the designated location through the feed pipe. During the addition process, the vibration makes it difficult for the catalyst to remain on the inclined surface, thereby avoiding the residue of catalyst in the storage tank, reducing costs, and facilitating subsequent cleaning by the staff. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a catalyst dosing device for pharmaceutical intermediates according to the present invention;
[0015] Figure 2 This is a schematic diagram of the internal structure of a catalyst dosing device for pharmaceutical intermediates according to the present invention;
[0016] Figure 3 This is a schematic diagram of the material guide plate in a catalyst dosing device for pharmaceutical intermediates according to this utility model.
[0017] In the diagram: 1. Base; 2. Storage tank; 3. Feeding tank; 4. Agitator; 5. Spiral discharge rod; 6. Motor; 7. Guide plate; 701. Guide plate base; 702. Inclined surface; 703. Guide slide column; 704. Spring; 8. Vibration motor; 9. Guide slide groove; 10. Sealing layer; 11. Feed inlet; 12. Feeding pipe; 13. Feeding port; 14. Heat dissipation window. Detailed Implementation
[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0019] like Figure 1 and Figure 2As shown, a catalyst dosing device for pharmaceutical intermediates includes a base 1, on which a storage tank 2 and a feeding tank 3 are provided. A stirring paddle 4 and a spiral discharge rod 5 are rotatably installed in the storage tank 2 and feeding tank 3, respectively. A motor 6 is provided on one side of both the stirring paddle 4 and the spiral discharge rod 5. A guide plate 7 and a heat dissipation window 14 are provided on the lower side of the inner cavity of the storage tank 2. A vibration motor 8 is installed on the guide plate 7. Several guide grooves 9 are provided on the lower inner wall of the storage tank 2. Several sealing layers 10 are fixedly provided on the inner wall surface of the storage tank 2 that is in contact with the guide plate 7. A feed inlet 11 is provided on one side of the storage tank 2. A feeding pipe 12 is provided on one side of the feeding tank 3. A feeding port 13 is provided between the storage tank 2 and the feeding tank 3.
[0020] like Figure 3 As shown, in another embodiment of the present invention, the guide plate 7 includes a guide plate base 701, and an inclined surface 702 is provided on the side of the guide plate base 701 away from the vibration motor 8. A plurality of guide sliding columns 703 and a plurality of springs 704 are fixedly provided on the outer wall surface of the side of the guide plate base 701 away from the inclined surface 702.
[0021] When the catalyst in the storage tank 2 needs to be transported to the feeding tank 3, the guide plate base 701 is vibrated by the vibration motor 8 and the spring 704. The vibrating guide plate base 701 causes the catalyst to move along the direction of the inclined surface 702 to the feeding port 13, and then enter the feeding tank 3 through the feeding port 13. During this process, the vibration makes it difficult for the catalyst to remain on the inclined surface 702. At the same time, since the height of the inclined surface 702 is higher than the height of the inner wall surface on the bottom side of the feeding port 13, the catalyst will not accumulate near the feeding port 13 due to the height difference caused by the vibration when the guide plate base 701 vibrates.
[0022] The working principle of a catalyst dosing device for pharmaceutical intermediates:
[0023] In use, the catalyst is first poured into the storage tank 2 through the feed inlet 11. Then, the two motors 6 rotate the stirring paddle 4 and the spiral discharge rod 5 respectively. The stirring paddle 4 stirs the catalyst to prevent clumping. At the same time, the vibrating motor 8 and the spring 704 vibrate the guide plate base 701, which moves the catalyst along the inclined surface 702 to the feed inlet 13. Then, it passes through the feed inlet 13 and enters the feed tank 3. The spiral discharge rod 5 rotates to discharge the catalyst to the feed pipe 12. The catalyst is then added to the designated location through the feed pipe 12. During the addition process, the vibration makes it difficult for catalyst to remain on the inclined surface 702, thus avoiding catalyst residue in the storage tank 2, reducing costs, and facilitating subsequent cleaning by staff.
[0024] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.
Claims
1. A catalyst dosing device for pharmaceutical intermediates, comprising a base (1), characterized in that: The base (1) is provided with a storage tank (2) and a feeding tank (3). A stirring paddle (4) and a spiral discharge rod (5) are respectively rotatably arranged in the storage tank (2) and the feeding tank (3). A motor (6) is provided on one side of the stirring paddle (4) and the spiral discharge rod (5). A guide plate (7) and a heat dissipation window (14) are provided on one side of the inner cavity of the storage tank (2). A vibration motor (8) is mounted on the guide plate (7). Several guide grooves (9) are provided on the inner wall of the lower side of the storage tank (2). Several sealing layers (10) are fixedly provided on the inner wall surface of the storage tank (2) that is in contact with the guide plate (7). A feed inlet (11) is provided on one side of the storage tank (2). A feeding pipe (12) is provided on one side of the feeding tank (3). A feeding port (13) is provided between the storage tank (2) and the feeding tank (3).
2. The catalyst dosing device for pharmaceutical intermediates according to claim 1, characterized in that: The motor (6) is fixedly installed on the base (1), and the two sides of the feeding port (13) are respectively connected to the storage tank (2) and the feeding tank (3).
3. The catalyst dosing device for pharmaceutical intermediates according to claim 2, characterized in that: The guide plate (7) includes a guide plate base (701). The guide plate base (701) has an inclined surface (702) on the side away from the vibration motor (8). A number of guide slides (703) and a number of springs (704) are fixedly provided on the outer wall surface of the side of the guide plate base (701) away from the inclined surface (702).
4. The catalyst dosing device for pharmaceutical intermediates according to claim 3, characterized in that: The vibration motor (8) is fixedly installed on the outer wall surface of one side below the guide plate base (701), and the height of the inclined surface (702) is higher than the height of the inner wall surface of the bottom side of the feed port (13).
5. The catalyst dosing device for pharmaceutical intermediates according to claim 4, characterized in that: Part of the guide slide (703) slides in the guide groove (9).
6. The catalyst dosing device for pharmaceutical intermediates according to claim 5, characterized in that: The spring (704) is fixedly installed on the inner wall of the bottom side of the storage tank (2) away from the guide plate base (701).