A concentrator for pharmaceutical production

Abstract

The utility model provides a kind of concentrator for drug production, it is related to drug production equipment technical field, including concentration tank body, the bottom of concentration tank body is sealed and is equipped with steam cavity, the inside of concentration tank body corresponding steam cavity is equipped with hollow plate, hollow plate is rotatably connected with transmission shaft by bearing, stirring rod is installed on transmission shaft between adjacent two hollow plates, and one end of transmission shaft is installed on concentration tank body by shaft seal structure.The utility model's stirring rod is installed by flexible elastic rod to enhance the resistance material adhesion ability and operating adaptability, transmission shaft is rotatably connected with hollow plate by bearing and adopts shaft seal structure to ensure the stable operation of stirring system and the sealing of tank body, and servo motor provides smooth power by the stable installation of motor support, support ring and support leg, and overall structure collaborative work improves concentration efficiency and equipment reliability.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical production equipment technology, and in particular to a concentration machine for pharmaceutical production. Background Technology

[0002] A pharmaceutical concentrater is a device that removes solvent from a liquid drug solution by heating and evaporation to increase the drug concentration. Its core function is to heat liquid materials to generate steam, thereby separating the solute from the solvent. This type of equipment typically includes a heating unit to provide heat, a stirring unit to promote heat transfer and evaporation efficiency, a condensation and collection unit to achieve gas-liquid separation, and auxiliary components for observation and operation. The ultimate goal is to obtain a concentrated pharmaceutical solution that meets the concentration requirements to meet the needs of subsequent formulation production.

[0003] In existing technologies, traditional heating methods often rely on a single jacket or coil heating, resulting in a limited heat transfer area and uneven heating, which can easily lead to local overheating or heating dead zones, thereby affecting the stability and concentration efficiency of drug components. Improvements are needed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a concentration machine for pharmaceutical production. Through the synergistic design of the stirring rod and hollow plate, the heating and moisture evaporation efficiency of the material is increased, thereby increasing the concentration efficiency. The specific technical solution adopted by this invention is as follows: A drug concentration machine includes a concentration tank, a steam chamber sealed at the bottom of the concentration tank, a hollow plate installed inside the concentration tank corresponding to the steam chamber, a drive shaft rotatably connected to the hollow plate via bearings, a stirring rod installed on the drive shaft between two adjacent hollow plates, one end of the drive shaft being mounted on the concentration tank via a shaft seal structure, and the other end of the drive shaft passing through the concentration tank and the steam chamber and being drively connected to a servo motor, the servo motor being fixedly mounted on a motor bracket, the motor bracket being fixedly mounted on a bracket ring and a support leg, and the support leg being fixedly mounted on the bracket ring.

[0005] In a preferred embodiment, the upper end of the steam chamber is connected to a steam inlet pipe, the lower end of the steam chamber is connected to a condensate outlet pipe, and the lower end of the concentration tank is connected to a drain port that runs through the steam chamber.

[0006] In a preferred embodiment, the hollow plate is sealed to the inner wall of the concentration tank, and the bottom of the inner cavity of the hollow plate is connected to the interior of the steam chamber through a steam inlet.

[0007] In a preferred embodiment, the upper end cover of the concentration tank is connected to a feeding pipe, which is connected to a feeder.

[0008] In a preferred embodiment, the upper end cover of the concentration tank is connected to a separator connecting pipe via a condenser at the middle, and the separator connecting pipe is connected to a gas-liquid separator.

[0009] In a preferred embodiment, a top sight glass is installed on the upper part of the concentration tank on one side of the feeding pipe, and a side sight glass is installed on the side wall of the concentration tank below the feeding pipe.

[0010] In a preferred embodiment, the stirring rod is fixedly mounted on the drive shaft by a flexible elastic rod.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The stirring rod of this invention, through the installation of a flexible elastic rod, significantly enhances its resistance to material adhesion and operational adaptability. The drive shaft is rotatably connected to the hollow plate via bearings and employs a shaft seal structure to ensure stable operation of the stirring system and the sealing of the tank. The servo motor, securely mounted with a motor bracket, bracket ring, and support feet, provides smooth power output. The overall structure works in concert to effectively improve concentration efficiency and equipment reliability.

[0012] Furthermore, the hollow plate design of this invention significantly increases the effective heating area inside the concentration tank, allowing heat to be transferred simultaneously and evenly to the material from the bottom of the tank and the internal hollow plate. This significantly improves heat exchange efficiency and heating uniformity, avoiding problems such as localized overheating or heating dead zones. Simultaneously, the sealed connection ensures efficient utilization of steam heat, preventing leakage to other unheated areas within the tank, thereby optimizing the energy efficiency and material handling quality of the entire concentration process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a drug concentration machine provided by the present invention.

[0014] Figure 2 This is a partial cross-sectional schematic diagram of a drug concentration machine provided by this utility model.

[0015] Figure 3 This utility model provides a schematic diagram of the connection of the stirring rod of a drug concentration machine.

[0016] Figure 4 This utility model provides a schematic diagram of the installation positions of the hollow plate and stirring rod in a drug production concentrator.

[0017] Legend: 1. Concentrator tank; 2. Feed pipe; 3. Top sight glass; 4. Condenser; 5. Separator connecting pipe; 6. Side sight glass; 7. Steam chamber; 8. Steam inlet pipe; 9. Condensate outlet pipe; 10. Drain port; 11. Support ring; 12. Support leg; 13. Motor bracket; 14. Servo motor; 15. Drive shaft; 16. Stirring rod; 17. Hollow plate; 18. Steam inlet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1 to 4 As shown, this utility model provides a technical solution: a concentration machine for drug production, including a concentration tank 1, a steam chamber 7 sealed at the bottom of the concentration tank 1, a hollow plate 17 installed inside the concentration tank 1 corresponding to the steam chamber 7, a drive shaft 15 rotatably connected to the hollow plate 17 via bearings, a stirring rod 16 installed on the drive shaft 15 between two adjacent hollow plates 17, the stirring rod 16 being fixedly installed on the drive shaft 15 via a flexible elastic rod, one end of the drive shaft 15 being installed on the concentration tank 1 via a shaft seal structure, and the other end of the drive shaft 15 passing through the concentration tank. The body 1 and the steam chamber 7 are connected to the servo motor 14. The servo motor 14 is fixedly mounted on the motor bracket 13. The motor bracket 13 is fixedly mounted on the bracket ring 11 and the support leg 12. The support leg 12 is fixedly mounted on the bracket ring 11. In this design, the servo motor 14 drives the transmission shaft 15 to rotate, which drives the stirring rod 16 fixed on it to mechanically stir the material in the concentration tank 1. At the same time, the bottom steam chamber 7 provides a heat source. The heat is transferred to the tank through the hollow plate 17 connected to it, so that the material is heated evenly and the water evaporates faster, thereby achieving efficient concentration. The steam chamber 7 has a steam inlet pipe 8 at its upper end and a condensate outlet pipe 9 at its lower end. The concentration tank 1 has a drain port 10 penetrating the steam chamber 7 at its lower end. The upper cover of the concentration tank 1 is connected to a feeding pipe 2, which is connected to a feeder. A separator connecting pipe 5, connected to a gas-liquid separator, is located in the middle of the upper cover of the concentration tank 1 via a condenser 4. In this design, the steam inlet pipe 8 at the upper end enters the steam chamber 7 as a heat source. The condensate formed after releasing heat is discharged from the condensate outlet pipe 9 at the lower end to maintain heat exchange efficiency. The concentrated material is discharged through the drain port 10 penetrating the steam chamber 7. This design utilizes the residual heat of the steam to keep the concentrated liquid about to be discharged warm and prevent solidification and blockage. Simultaneously, the material is fed in through the feeding pipe 2 at the upper cover, and the steam generated by evaporation is condensed by the condenser 4. The uncondensed gas and residual steam then enter the gas-liquid separator via the separator connecting pipe 5 for effective separation. Furthermore, the hollow plate 17 is sealed to the inner wall of the concentration tank 1, and the bottom of the inner cavity of the hollow plate 17 is connected to the interior of the steam chamber 7 through the steam inlet 18. In this design, the hollow plate 17 forms an independent closed inner cavity through the sealed connection with the inner wall of the concentration tank 1, and the inner cavity is connected to the interior of the steam chamber 7 through the steam inlet 18 at the bottom, so that the heating steam introduced from the steam chamber 7 can directly enter and fill the inner cavity of the hollow plate 17, thereby transforming the hollow plate 17 itself into a large heating wall surface. Furthermore, a top sight glass 3 is installed on the upper part of the concentration tank 1 on one side of the feeding pipe 2, and a side sight glass 6 is installed on the side wall of the concentration tank 1 below the feeding pipe 2. In this design, by installing the top sight glass 3 near the feeding pipe 2 at the upper end of the concentration tank 1 and the side sight glass 6 below the side wall, two observation windows with different heights and angles are provided for the operator.

[0020] In this embodiment, the servo motor 14 drives the transmission shaft 15 to rotate, which in turn drives the stirring rod 16, mounted via a flexible elastic rod, to efficiently mix the material in the concentration tank 1. Simultaneously, a steam heat source is introduced through the steam chamber 7 and the steam inlet pipe 8. The steam heats the bottom of the tank directly through the steam chamber 7, and also enters the inner cavity of the hollow plate 17, which is sealed to the tank wall, through the steam outlet 18. This makes the hollow plate 17 a large heating wall surface, thus achieving simultaneous bidirectional heating from both the bottom and the inside. This greatly increases the heat exchange area, ensures uniform heating of the material, accelerates moisture evaporation, and promotes steam... After the gaseous substances generated are initially condensed by the condenser 4, the uncondensed gas enters the gas-liquid separator through the separator connecting pipe 5 to achieve gas-liquid separation. The condensate formed after the steam releases heat is discharged in time through the condensate outlet pipe 9 to maintain heat exchange efficiency. The concentrated material is discharged through the liquid outlet 10 that runs through the steam chamber 7. This design can use the waste heat of the steam to keep the concentrated liquid warm and prevent solidification. The material is fed in through the feeding pipe 2. The operator can observe the feeding and liquid level status through the top sight glass 3 on the top and monitor the stirring and liquid level changes through the side sight glass 6 on the side.

[0021] Working principle: like Figures 1 to 4 As shown, when this utility model is in use, the material enters the concentration tank 1 through the feeding pipe 2. After starting, the servo motor 14 drives the stirring rod 16 through the transmission shaft 15 to continuously shear and mix the material. Its flexible elastic rod design allows the stirrer to avoid jamming and scrape off the attached material by deforming itself when encountering high viscosity or easily crystallizing materials. At the same time, steam is injected into the steam chamber 7 from the steam inlet pipe 8. Part of the heat is directly conducted through the bottom of the tank, while the other part of the steam flows into the inner cavity of the sealed hollow plate 17 through the steam outlet 18, forming a two-way heating network from the bottom of the tank to the internal three-dimensional space, so that the heat energy can penetrate the material layer evenly and accelerate the evaporation of moisture. Then, the water evaporated from the material rises to the top of the tank and is initially liquefied by the condenser 4. The uncondensed gas-liquid mixture enters the external gas-liquid separator through the separator connecting pipe 5 to complete the final separation. Meanwhile, the condensate in the steam chamber 7 is discharged from the condensate outlet pipe 9 in time to maintain a constant heat exchange efficiency. Finally, after concentration, the finished product is discharged from the liquid outlet 10 through the steam chamber 7. The through-type design ensures that the pipeline is always surrounded by the residual heat of steam, effectively preventing blockage caused by the high concentration of medicine cooling and solidifying at the outlet. Throughout the process, operators can monitor the feeding status and liquid surface foam in real time through the top sight glass 3, and observe the degree of material mixing and liquid level changes through the side sight glass 6, forming a dual visualization guarantee for the entire production process.

[0022] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A drug concentration machine, characterized in that: It includes at least a concentration tank (1), the bottom of which is sealed with a steam chamber (7). A hollow plate (17) is installed inside the concentration tank (1) corresponding to the steam chamber (7). A drive shaft (15) is rotatably connected to the hollow plate (17) through a bearing. A stirring rod (16) is installed on the drive shaft (15) between two adjacent hollow plates (17). One end of the drive shaft (15) is installed on the concentration tank (1) through a shaft seal structure. The other end of the drive shaft (15) passes through the concentration tank (1) and the steam chamber (7) and is connected to a servo motor (14). The servo motor (14) is fixedly installed on a motor bracket (13). The motor bracket (13) is fixedly installed on a bracket ring (11) and a support leg (12). The support leg (12) is fixedly installed on the bracket ring (11).

2. The drug concentration machine according to claim 1, characterized in that: The upper end of the steam chamber (7) is connected to a steam inlet pipe (8), the lower end of the steam chamber (7) is connected to a condensate outlet pipe (9), and the lower end of the concentration tank (1) is connected to a liquid outlet (10) that runs through the steam chamber (7).

3. A drug concentration machine according to claim 1, characterized in that: The hollow plate (17) is sealed to the inner wall of the concentration tank (1), and the bottom of the inner cavity of the hollow plate (17) is connected to the interior of the steam chamber (7) through the steam inlet (18).

4. A drug concentration machine according to claim 1, characterized in that: The upper end cover of the concentration tank (1) is connected to the feeding pipe (2), and the feeding pipe (2) is connected to the feeder.

5. A drug concentration machine according to claim 1, characterized in that: The upper end cover of the concentration tank (1) is connected to a separator connecting pipe (5) through a condenser (4) in the middle, and the separator connecting pipe (5) is connected to a gas-liquid separator.

6. A drug concentration machine according to claim 4, characterized in that: A top sight glass (3) is installed on the upper part of the concentration tank (1) on one side of the feeding pipe (2), and a side sight glass (6) is installed on the side wall of the concentration tank (1) below the feeding pipe (2).

7. A drug concentration machine according to claim 1, characterized in that: The stirring rod (16) is fixedly mounted on the drive shaft (15) by a flexible elastic rod.

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