Liquid medicine extraction and concentration unit
By designing a multi-purpose pump solution for drug extraction and concentration, the problem of high cost of existing equipment has been solved, achieving efficient filtration and concentration of drug solutions, reducing equipment costs and improving resource utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU YONGTAI PHARM CHEM MASCH FACTORY
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-26
AI Technical Summary
Existing drug concentration equipment requires two transfer pumps, which increases equipment costs.
Design a drug extractor and concentrator unit that uses a single pump for multiple purposes. The output pump delivers the drug solution to multiple devices, including a concentrator evaporator, a resin purification unit, and a receiving tank, enabling multiple filtrations and concentrations of the drug solution and reducing equipment costs.
By using a single pump for multiple purposes, equipment costs are reduced, the efficiency of drug filtration and concentration is improved, the loss of active ingredients is reduced, and resource utilization is enhanced.
Smart Images
Figure CN224404365U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical liquid production technology, specifically a pharmaceutical liquid extraction and concentration unit. Background Technology
[0002] Concentration of pharmaceutical solutions is an essential key unit operation in pharmaceutical production. It involves heating the extract to a boiling state through heat transfer at a certain temperature, separating non-volatile or low-volatility substances from volatile solvents to a certain extent, and obtaining a concentrated solution with a certain density.
[0003] Utility model patent CN201091801Y discloses an extraction and recovery unit, including an extraction tank, a resin exchange column, a heater, a concentrator, a condenser and a vacuum dryer, which are connected in sequence through pipelines. The technical solution adopted by this utility model is: to add an ultrasonic spiral conveyor to the recovery unit, the inlet end of which is connected to the outlet end of the extraction tank through a pipeline, and the outlet end of which is connected to the inlet end of the resin exchange column.
[0004] Although the aforementioned patent can achieve drug concentration, in actual use, the conveyor uses a transfer pump to transport the drug to the resin exchange column, and the drug after being treated by the resin exchange column needs to be transported to the concentrator using another transfer pump, which will increase the equipment cost. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a drug extraction and concentration unit that can achieve multiple uses with one pump and reduce costs.
[0006] The technical solution adopted by this utility model to solve its technical problem is a drug extraction and concentration unit, including an extraction tank. The outlet of the extraction tank is connected to the inlet of an output pump, and the outlet of the output pump is connected to a concentrator evaporator. A first circulation pipe is provided at the bottom of the concentrator evaporator, which is connected to the inlet of a heater. The side wall of the concentrator evaporator and the side wall of the heater are connected through a second circulation pipe. The connection point between the first circulation pipe and the concentrator evaporator is higher than the connection point between the first circulation pipe and the heater. A steam pipe is provided at the top of the heater, which is connected to the inlet of a condenser evaporator. The outlet of the condenser evaporator is connected to the inlet of a recovery unit. The extraction tank and the output pump... A bag filter is installed between the extraction tank and the output pump. The inlet of the bag filter is connected to the outlet of the extraction tank, and the outlet of the bag filter is connected to the output pump. A ceramic membrane filter is installed between the output pump and the concentrator / evaporator. The inlet of the ceramic membrane filter is connected to the outlet of the output pump, and a valve is installed between the inlet of the ceramic membrane filter and the outlet of the output pump. The outlet of the ceramic membrane filter is connected to the concentrator / evaporator. The outlet of the output pump is connected to the inlet of the high-level tank, and a valve is installed at the inlet of the high-level tank. The outlet of the high-level tank is connected to the inlet of the resin purification unit, the outlet of the resin purification unit is connected to the inlet of the receiving tank, and the outlet of the receiving tank is connected to the inlet of the output pump.
[0007] Furthermore, the outlet of the output pump is connected to the inlet of the alcohol precipitation tank, the outlet of the alcohol precipitation tank is connected to the inlet of the output pump, and a valve is provided at the inlet of the alcohol precipitation tank.
[0008] Furthermore, the outlet of the output pump is connected to the outlet of the resin purification unit, and a valve is provided between the outlet of the output pump and the outlet of the resin purification unit;
[0009] Furthermore, the top of the extraction tank is connected to the inlet of the extraction condenser, and the outlet of the extraction condenser is connected to the oil-water separator.
[0010] Furthermore, the extraction tank includes a tank body, a stirring blade is provided inside the tank body, a drive motor for driving the stirring blade to rotate is provided outside the tank body, and a heating device and a temperature detector are provided on the inner wall of the tank body.
[0011] Furthermore, the bottom of the tank is provided with a cover, the outlet of the extraction tank is provided on the cover, the side wall of the tank is provided with a mounting base and a support base, the cover is provided with a connecting rod, the middle part of the connecting rod is hinged to the support base, the mounting base is hinged with an opening and closing cylinder, and the output end of the opening and closing cylinder is hinged to the end of the connecting rod.
[0012] Furthermore, a locking device is provided between the tank body and the cover body.
[0013] Furthermore, a filter plate is provided on the top of the cover.
[0014] The beneficial effects of this utility model are: by setting an output pump at the outlet of the bag filter, the output pump delivers the liquid medicine to the ceramic membrane filter and finally into the concentrator evaporator; the output pump can also deliver the liquid medicine to the high-level tank, the resin purification unit and the receiving tank for resin exchange, and then deliver the liquid medicine to the ceramic membrane filter and finally into the concentrator evaporator, realizing multiple uses of one pump and reducing costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the extraction tank.
[0017] Reference numerals: 1-High-level tank; 2-Extraction condenser; 3-Oil-water separator; 4-Recovery unit; 5-Concentrating condenser; 6-Concentrating evaporator; 7-Heater; 8-Output pump; 9-Ceramic membrane filter; 10-Bag filter; 11-Extraction tank; 12-Alcohol precipitation tank; 13-Resin purification unit; 14-Receiving tank; 15-Cover; 16-Mounting base; 17-Support base; 18-Connecting rod; 19-Opening / closing cylinder; 20-Locking device; 21-Filter plate. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0019] like Figure 1As shown, the present invention relates to a pharmaceutical liquid extraction and concentration unit, comprising an extraction tank 11, the outlet of which is connected to the inlet of an output pump 8, and the outlet of the output pump 8 being connected to a concentrating evaporator 6. A first circulation pipe is provided at the bottom of the concentrating evaporator 6, and the first circulation pipe is connected to the inlet of a heater 7. The sidewalls of the concentrating evaporator 6 and the heater 7 are connected by a second circulation pipe. The connection point between the first circulation pipe and the concentrating evaporator 6 is higher than the connection point between the first circulation pipe and the heater 7. A steam pipe is provided at the top of the heater 7, and the steam pipe is connected to the inlet of a concentrating condenser 5. The outlet of the concentrating condenser 5 is connected to the inlet of a recovery unit 4. A bag filter 10 is provided between the extraction tank 11 and the output pump 8. The inlet of the bag filter 10 is connected to the outlet of the extraction tank 11, and the outlet of the bag filter 10 is connected to the output pump 8. A ceramic membrane filter 9 is installed between the output pump 8 and the concentrator evaporator 6. The inlet of the ceramic membrane filter 9 is connected to the outlet of the output pump 8, and a valve is installed between the inlet of the ceramic membrane filter 9 and the outlet of the output pump 8. The outlet of the ceramic membrane filter 9 is connected to the concentrator evaporator 6. The outlet of the output pump 8 is connected to the inlet of the high-level tank 1. A valve is installed at the inlet of the high-level tank 1. The outlet of the high-level tank 1 is connected to the inlet of the resin purification unit 13. The outlet of the resin purification unit 13 is connected to the inlet of the receiving tank 14. The outlet of the receiving tank 14 is connected to the inlet of the output pump 8.
[0020] In this process, the medicinal materials and solvent are mixed in the extraction tank 11, and the temperature is raised by an internal wall heating device to extract usable substances from the medicinal materials. A bag filter 10, located at the outlet of the extraction tank 11, performs preliminary filtration of the liquid, removing large particulate impurities. A ceramic membrane filter 9, located between the output pump 8 and the concentrator evaporator 6, performs precision filtration (such as removing tiny particles and bacteria), and its operation is controlled by a valve. The liquid enters the concentrator evaporator 6 through the ceramic membrane filter 9, and then flows from the bottom of the concentrator evaporator 6 into the heater 7 via the first circulation pipe. After being heated, it returns to the evaporator via the second circulation pipe. Due to the height difference at the connection point of the two pipes, a natural circulation is formed. After the solvent evaporates, the vapor enters the concentrator condenser 5 via the steam pipe to liquefy, and finally flows into the recovery unit 4, achieving solvent reuse. The high-level tank 1 is used to store the unfiltered pharmaceutical solution output by the output pump 8, which has not been filtered by the ceramic filter 9. The outlet height of the high-level tank 1 is higher than the inlet height of the resin purification unit 13, allowing the pharmaceutical solution in the high-level tank 1 to enter the resin purification unit 13 under gravity. The resin purification unit 13 consists of multiple resin columns connected in series to purify the pharmaceutical solution. The purified pharmaceutical solution enters the receiving tank 14, and is then transported by the transfer pump 8 to the ceramic membrane filter 9, and finally enters the concentrator evaporator 6. Path 1, concentration path: pharmaceutical solution enters the concentrator evaporator 6 through the ceramic membrane filter 9; Path 2, resin purification path: pharmaceutical solution → high-level tank 1 → resin purification unit 13 → receiving tank 14 → back to the output pump 8, and then enters the concentration path; this achieves seamless integration of precision filtration and concentration processes, reducing equipment costs.
[0021] To avoid configuring a separate pump for alcohol precipitation tank 12 and further expand the versatility of a single pump, see [link to relevant documentation]. Figure 1 The outlet of the output pump 8 is connected to the inlet of the alcohol precipitation tank 12, and the outlet of the alcohol precipitation tank 12 is connected to the inlet of the output pump 8. A valve is installed at the inlet of the alcohol precipitation tank 12. An alcohol precipitation process bypass is added, whereby the output pump 8 sends the drug solution into the alcohol precipitation tank 12 for alcohol precipitation to extract impurities and organic matter. After precipitation and extraction are completed, the output pump 8 extracts the drug solution and sends it to the concentration path.
[0022] To achieve backflushing of resin purification unit 13, further see... Figure 1 The outlet of the output pump 8 is connected to the outlet of the resin purification unit 13, and a valve is provided between the outlet of the output pump 8 and the outlet of the resin purification unit 13. After long-term use, the resin may become clogged or have residual impurities, and it needs to be backflushed regularly to restore its adsorption performance.
[0023] Further, see Figure 1The top of the extraction tank 11 is connected to the inlet of the extraction condenser 2, and the outlet of the extraction condenser 2 is connected to the oil-water separator 3. When the extraction tank 11 is heated, volatile components (such as essential oils) vapor enter the extraction condenser 2, liquefy, and are then separated and recovered by the oil-water separator 3. This avoids the loss of effective components and improves resource utilization.
[0024] To better extract the active ingredients from medicinal herbs, further [see...] Figure 1 and Figure 2 The extraction tank 11 includes a tank body, a stirring blade inside the tank body, and a drive motor outside the tank body to drive the stirring blade to rotate. A heating device and a temperature detector are installed on the inner wall of the tank body. The drive motor drives the stirring blade to rotate, which enhances the mixing of the medicinal materials and the solvent, improving extraction efficiency. The heating device can be located in the jacket space outside the inner tank, and a heat source (steam or hot water) can be introduced for heating. Heating the solvent can improve the extraction efficiency of the active ingredients in the medicinal materials. The temperature detector can accurately control the extraction temperature and monitor it in real time to prevent overheating.
[0025] To better facilitate the discharge of dregs and make it easier to open extraction tank 11, see further... Figure 2 The bottom of the tank is provided with a cover 15, and the outlet of the extraction tank 11 is located on the cover 15. A mounting base 16 and a support base 17 are provided on the side wall of the tank. A connecting rod 18 is provided on the cover 15, and the middle part of the connecting rod 18 is hinged to the support base 17. An opening / closing cylinder 19 is hinged to the mounting base 16, and the output end of the opening / closing cylinder 19 is hinged to the end of the connecting rod 18. The cover 15 is used to open or close the extraction tank 11. The mounting base 16 and the support base 17 are welded or bolted to the tank. The middle part of the connecting rod 18 can rotate around the support base 17. When the opening / closing cylinder 19 extends, the cover 15 is fastened to the tank, closing the extraction tank 11. When the opening / closing cylinder 19 retracts, the extraction tank 11 is opened.
[0026] To ensure the airtight seal of the lid 15 on the tank, further... Figure 2 A locking device 20 is provided between the tank body and the cover body 15.
[0027] Furthermore, participate Figure 2 A filter plate 21 is provided on the top of the cover 15. The filter plate 21 performs coarse filtration before the medicine flows out of the extraction tank 11, intercepting large particles of medicine residue and reducing the load on the subsequent bag filter 10.
[0028] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A liquid extraction and concentration unit, comprising an extraction tank (11), the outlet of the extraction tank (11) being connected to the inlet of an output pump (8), the outlet of the output pump (8) being connected to a concentrating evaporator (6), a first circulation pipe being provided at the bottom of the concentrating evaporator (6), the first circulation pipe being connected to the inlet of a heater (7), the side wall of the concentrating evaporator (6) and the side wall of the heater (7) being connected through a second circulation pipe, the connection point of the first circulation pipe and the concentrating evaporator (6) being higher than the connection point of the first circulation pipe and the heater (7), a steam pipe being provided at the top of the heater (7), the steam pipe being connected to the inlet of a concentrating condenser (5), the outlet of the concentrating condenser (5) being connected to the inlet of a recovery unit (4), a bag filter (10) being provided between the extraction tank (11) and the output pump (8), the inlet of the bag filter (10) being connected to the outlet of the extraction tank (11), and the outlet of the bag filter (10) being connected to the output pump (8); characterized in that: A ceramic membrane filter (9) is provided between the output pump (8) and the concentrator (6). The inlet of the ceramic membrane filter (9) is connected to the outlet of the output pump (8). A valve is provided between the inlet of the ceramic membrane filter (9) and the outlet of the output pump (8). The outlet of the ceramic membrane filter (9) is connected to the concentrator (6). The outlet of the output pump (8) is connected to the inlet of the high-level tank (1). A valve is provided at the inlet of the high-level tank (1). The outlet of the high-level tank (1) is connected to the inlet of the resin purification unit (13). The outlet of the resin purification unit (13) is connected to the inlet of the receiving tank (14). The outlet of the receiving tank (14) is connected to the inlet of the output pump (8).
2. The drug extracting and concentrating unit as described in claim 1, characterized in that: The outlet of the output pump (8) is connected to the inlet of the alcohol precipitation tank (12), the outlet of the alcohol precipitation tank (12) is connected to the inlet of the output pump (8), and a valve is provided at the inlet of the alcohol precipitation tank (12).
3. The drug extracting and concentrating unit as described in claim 1, characterized in that: The outlet of the output pump (8) is connected to the outlet of the resin purification unit (13), and a valve is provided between the outlet of the output pump (8) and the outlet of the resin purification unit (13).
4. The drug extracting and concentrating unit as described in claim 1, characterized in that: The top of the extraction tank (11) is connected to the inlet of the extraction condenser (2), and the outlet of the extraction condenser (2) is connected to the oil-water separator (3).
5. The drug extracting and concentrating unit as described in claim 1, characterized in that: The extraction tank (11) includes a tank body, a stirring blade is provided inside the tank body, a drive motor for driving the stirring blade to rotate is provided outside the tank body, and a heating device and a temperature detector are provided on the inner wall of the tank body.
6. The drug extracting and concentrating unit as described in claim 5, characterized in that: The bottom of the tank is provided with a cover (15), the outlet of the extraction tank (11) is provided on the cover (15), the side wall of the tank is provided with a mounting base (16) and a support base (17), the cover (15) is provided with a connecting rod (18), the middle part of the connecting rod (18) is hinged to the support base (17), the mounting base (16) is hinged with an opening and closing cylinder (19), the output end of the opening and closing cylinder (19) is hinged to the end of the connecting rod (18).
7. The drug extracting and concentrating unit as described in claim 6, characterized in that: A locking device (20) is provided between the tank body and the cover (15).
8. The drug extracting and concentrating unit as described in claim 6, characterized in that: A filter plate (21) is provided on the top of the cover (15).