Traditional Chinese medicine multistage countercurrent extraction device

Abstract

The utility model discloses a traditional chinese medicine multistage countercurrent extraction device, the utility model relates to traditional chinese medicine extraction technical field. The traditional chinese medicine multistate countercurrent extraction device includes support frame, and the top of support frame is provided with extraction mechanism: pressure assembly, sets up the position for limiting traditional chinese medicine powder in the top of support frame, limiting component, including the shell of setting below pressure assembly, the front side fixed mounting of shell has the limiting block, the inside movable mounting of shell has the baffle, because the water outlet of booster pump communicates with the inner chamber of shell through connecting pipe, solenoid valve, can deliver solvent to the inside of shell through booster pump, and solvent will wet liquid in the process of moving upwards, and under the continuous delivery of booster pump, separate into the space behind the transmission block inside the limiting pipe, and enter the delivery pipe discharge through the solenoid valve of limiting pipe rear end, and this mode can deliver solution through high pressure after compacting medicine powder, can improve extraction efficiency significantly.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine extraction technology, specifically a multi-stage countercurrent extraction device for traditional Chinese medicine. Background Technology

[0002] Extraction of traditional Chinese medicine (TCM) is a crucial unit operation in TCM production. The selection of its processing methods, flow patterns, and equipment configuration directly affects the quality and clinical efficacy of the TCM. There are three basic forms of extraction: single-stage extraction, multi-stage cross-flow extraction, and continuous counter-current extraction.

[0003] The existing Chinese utility model patent with publication number CN210631710U discloses a continuous countercurrent extraction device for traditional Chinese medicine, comprising a feeding hopper, a moistening machine, an extraction machine, and a slag discharger connected in sequence. The feeding hopper is located at one end of the moistening machine, with a water distributor above it. The other end of the moistening machine has a wet material outlet connected to the inlet of the extraction machine. The inlet and outlet are located at the same end of the extraction machine, and the other end of the extraction machine is connected to the slag discharger. The extraction machine has several inlets along its axial direction. Both the moistening machine and the extraction machine are screw propellers, and the propeller blades inside the extraction machine are equipped with toothed spikes. In this utility model, by adopting a staged liquid feeding method, the amount of extraction solvent used can be effectively reduced. Moreover, the toothed spikes allow the propeller blades to generate a mixing effect while propulsing, further improving the extraction efficiency.

[0004] The aforementioned important continuous countercurrent extraction device delivers the solution into the extraction machine through a staged liquid feeding method. After the solution flows through the material, it is discharged at the rear end of the extraction machine. Due to the crushing and stirring by the screw conveyor, the solution will carry away the residue after flowing through the material again. The solution still needs to be filtered later. At the same time, in this method, the solution is only mixed with the material by stirring for leaching. This method is limited by the contact time between the solution and the material, resulting in low extraction efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a multi-stage countercurrent extraction device for traditional Chinese medicine, which solves the problems of low extraction efficiency and the presence of medicinal residue in the extraction process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A multi-stage countercurrent extraction device for traditional Chinese medicine includes a support frame, and an extraction mechanism is disposed above the support frame.

[0007] A pressure-applying component, positioned above the support frame, is used to restrict the position of the traditional Chinese medicine powder.

[0008] The limiting component includes a housing disposed below the pressure application component. A limiting block is fixedly installed on the front side of the housing. A partition is movably installed inside the housing. A stepper motor is fixedly installed on the front side of the limiting block. A solenoid valve is fixedly installed on the rear side of the housing. A connecting pipe is fixedly installed at the rear end of the solenoid valve. A booster pump is fixedly installed at the rear end of the connecting pipe.

[0009] Preferably, the pressure application component includes a limiting tube fixedly installed above the support frame, an end cap fixedly installed at the front end of the limiting tube, a hydraulic piston inserted at the rear end of the limiting tube, a connecting base fixedly installed at the movable end of the hydraulic piston, a limiting frame fixedly installed on the outer side of the connecting base, a filter screen fixedly installed inside the limiting frame, a transmission block movably installed at the front end of the connecting base, a support column inserted inside the transmission block, and a rubber pad fixedly installed at the front end of the transmission block.

[0010] Preferably, there are three limiting tubes, and the limiting tubes are installed vertically at equal intervals through the support frame. The movable end of the hydraulic piston passes through the rear end of the limiting tube and extends into the interior of the limiting tube. The front end center of the connecting base is provided with a cylindrical protrusion with threads on the outside. The filter screen is installed in an "X" shape inside the limiting frame with the center of the limiting frame as the reference.

[0011] Preferably, the outer edge of the limiting frame contacts the inner wall of the limiting tube, and the limiting frame and the limiting tube form a sliding connection. The transmission block is movably connected to the connecting base through the thread on the outer side of the columnar structure of the connecting base. The support column has horizontal honeycomb openings inside. Circular filter screens are fixedly installed at both ends of the support column. The support column is installed in an "X" shape inside the transmission block with the center of the transmission block as the reference. The surface of the rubber pad has an opening structure with a hole diameter consistent with the outer diameter of the support column. A conveying pipe is fixedly installed at the rear end of the limiting tube.

[0012] Preferably, the limiting component is fixedly installed below the front ends of the three limiting tubes and above the front end of the top limiting tube. The outer shell is fixedly connected to the limiting tubes through a flange structure, and the partition is rotatably connected to the outer shell and the limiting block.

[0013] Preferably, a cylindrical protrusion is provided at the center of the partition, and the front end of the cylindrical structure on the front side of the partition is fixedly connected to the rotating shaft of the stepper motor. The water outlet of the booster pump is connected to the inner cavity of the outer shell through a connecting pipe and a solenoid valve. The solenoid valve is installed above the partition. The bottom of the booster pump is fixedly connected to the support frame. A receiving hopper is fixedly installed on the top of the outer shell of the support frame.

[0014] Beneficial effects

[0015] This invention provides a multi-stage countercurrent extraction device for traditional Chinese medicine. Compared with the prior art, it has the following advantages:

[0016] (1) The multi-stage countercurrent extraction device for traditional Chinese medicine, through the setting of the hydraulic piston, can drive the connecting base to move, thereby causing the transmission block to move inside the limiting tube and squeeze the drug powder. Since the water outlet of the booster pump is connected to the inner cavity of the shell through the connecting pipe and the solenoid valve, the booster pump can deliver the solvent to the inside of the shell. The solvent will wet the liquid during the upward movement and, under the continuous delivery of the booster pump, precipitate into the space behind the transmission block inside the limiting tube, and enter the delivery pipe through the solenoid valve at the rear end of the limiting tube for discharge. This method can compact the drug powder and deliver the solution under high pressure, which can significantly improve the extraction efficiency.

[0017] (2) In this multi-stage countercurrent extraction device for traditional Chinese medicine, the solvent will be extracted from the medicine under the continuous delivery of the booster pump through the filter screen and move to the right through the filter screen at both ends of the support column inside the transmission block. It will enter the space behind the transmission block inside the limit tube. The medicine powder will be intercepted by the filter screen. Then the medicine will continue to be extracted, pass through the filter screen inside the limit frame, and finally enter the connecting pipe through the solenoid valve at the rear end of the limit tube. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the limiting tube and the outer shell of this utility model;

[0020] Figure 3 This is a schematic diagram of the filter installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the receiving bucket of this utility model;

[0022] In the diagram: 1. Support frame; 2. Extraction mechanism; 21. Pressurizing component; 211. Limiting tube; 212. End cap; 213. Hydraulic piston; 214. Connecting base; 215. Limiting frame; 216. Filter screen; 217. Transmission block; 218. Support column; 219. Rubber pad; 22. Limiting component; 221. Outer shell; 222. Limiting block; 223. Partition; 224. Stepper motor; 225. Solenoid valve; 226. Connecting pipe; 227. Booster pump; 23. Conveying pipe; 24. Receiving hopper. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a multi-stage countercurrent extraction device for traditional Chinese medicine, including a support frame 1, and an extraction mechanism 2 is arranged above the support frame 1.

[0025] A pressure-applying component 21, positioned above the support frame 1, is used to restrict the position of the traditional Chinese medicine powder. The pressure-applying component 21 includes a limiting tube 211 fixedly installed above the support frame 1. An end cap 212 is fixedly installed at the front end of the limiting tube 211. A hydraulic piston 213 is inserted through the rear end of the limiting tube 211. A connecting base 214 is fixedly installed at the movable end of the hydraulic piston 213. A limiting frame 215 is fixedly installed on the outer side of the connecting base 214. A filter screen 216 is fixedly installed inside the limiting frame 215. A transmission block 217 is movably installed at the front end of the connecting base 214. A support column 218 is inserted through the transmission block 217. A rubber pad 219 is fixedly installed at the front end of the transmission block 217. There are three limiting tubes 211, installed vertically and equidistantly through the support frame 1. The movable end of the hydraulic piston 213 passes through the rear end of the limiting tube 211, extending towards the limiting tube 211. The internal extension of 11, the front center of the connecting base 214 is provided with a cylindrical protrusion with threads on the outside, the filter screen 216 is installed in an "X" shape with the center of the limiting frame 215 as the reference, the outer edge of the limiting frame 215 contacts the inner wall of the limiting tube 211, and the limiting frame 215 and the limiting tube 211 form a sliding connection, the transmission block 217 is movably connected to the connecting base 214 through the threads on the outside of the cylindrical structure of the connecting base 214, the support column 218 is provided with horizontal honeycomb openings inside, the two ends of the support column 218 are fixedly installed with circular filter screens 216, the support column 218 is installed in an "X" shape with the center of the transmission block 217 as the reference, the surface of the rubber pad 219 is provided with an opening structure with the same hole diameter as the outer diameter of the support column 218, and the rear end of the limiting tube 211 is fixedly installed with a conveying pipe 23.

[0026] Specifically, the support frame 1 supports the limiting tube 211 and the booster pump 227. The limiting tube 211 restricts the position of the Chinese medicine powder and solution. The end cap 212 can be removed to clean the dregs captured by the filter screen 216. The hydraulic piston 213 can drive the connecting base 214 to move, thereby moving the transmission block 217 inside the limiting tube 211 to squeeze the medicine powder. The limiting frame 215 restricts the position of the filter screen 216 so that the solution can pass through the filter screen 216 after being squeezed out. The outer side of the transmission block 217 is wrapped with a rubber pad 219, which can squeeze the medicine powder under the drive of the hydraulic piston 213. The filter screens 216 at both ends of the support column 218 inside the transmission block 217 intercept the dregs in the medicine to prevent the medicine from being discharged with the dregs. The honeycomb structure inside the support column 218 can improve the strength of the support column 218. The delivery pipe 23 is connected to the inner cavity of the limiting tube 211 through the solenoid valve 225.

[0027] The limiting component 22 includes a housing 221 disposed below the pressure application component 21. A limiting block 222 is fixedly installed on the front side of the housing 221. A partition 223 is movably installed inside the housing 221. A stepper motor 224 is fixedly installed on the front side of the limiting block 222. A solenoid valve 225 is fixedly installed on the rear side of the housing 221. A connecting pipe 226 is fixedly installed at the rear end of the solenoid valve 225. A booster pump 227 is fixedly installed at the rear end of the connecting pipe 226. The limiting component 22 is fixedly installed below the front ends of the three limiting pipes 211 and above the front end of the top limiting pipe 211. The housing 221 is open to... The flange structure and the limiting pipe 211 are fixedly connected. The partition 223 is rotatably connected to the outer shell 221 and the limiting block 222. A columnar protrusion is provided at the center of the partition 223, and the front end of the columnar structure on the front side of the partition 223 is fixedly connected to the rotating shaft of the stepper motor 224. The water outlet of the booster pump 227 is connected to the inner cavity of the outer shell 221 through the connecting pipe 226 and the solenoid valve 225. The solenoid valve 225 is installed above the partition 223. The bottom of the booster pump 227 is fixedly connected to the support frame 1. A receiving hopper 24 is fixedly installed on the top of the outer shell 221 of the support frame 1.

[0028] Specifically, the outer shell 221 can restrict the position of the limiting block 222. The limiting block 222 and the outer shell 221 restrict the position of the partition 223, so that the partition 223 can separate the cylindrical cavity between the limiting block 222 and the outer shell 221 when it is in a horizontal state, so as to receive the powder and restrict the position of the powder. Since the water outlet of the booster pump 227 is connected to the inner cavity of the outer shell 221 through the connecting pipe 226 and the solenoid valve 225, the booster pump 227 can deliver solvent to the inside of the outer shell 221. The solvent will wet the liquid during the upward movement and, under the continuous delivery of the booster pump 227, precipitate into the space behind the transmission block 217 inside the limiting tube 211, and enter the delivery pipe 23 through the solenoid valve 225 at the rear end of the limiting tube 211 and be discharged. The receiving hopper 24 can facilitate the powder to enter the lower limiting tube 211. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0029] During operation, the hydraulic piston 213 drives the connecting base 214 to move, thereby causing the transmission block 217 to move inside the limiting tube 211, compressing the drug powder. Since the water outlet section of the booster pump 227 is connected to the inner cavity of the outer shell 221 through the connecting pipe 226 and the solenoid valve 225, the booster pump 227 can deliver solvent into the inner cavity of the outer shell 221. The solvent wets the liquid as it moves upward, and under the continuous delivery of the booster pump 227, it precipitates into the space behind the transmission block 217 inside the limiting tube 211, and is discharged into the delivery pipe 23 through the solenoid valve 225 at the rear end of the limiting tube 211. This method can compact the drug powder and then deliver it under high pressure. The liquid can significantly improve the extraction efficiency. Under the continuous delivery of the booster pump 227, the solvent is precipitated from the agent and moves to the right through the filter screens 216 at both ends of the support column 218 inside the transmission block 217. It enters the space behind the transmission block 217 inside the limiting tube 211. The drug powder will be intercepted by the filter screen 216. Then the agent continues to precipitate, passes through the filter screen 216 inside the limiting frame 215, and finally enters the connecting tube 226 through the solenoid valve 225 at the rear end of the limiting tube 211. Different pressures are applied to the drug powder by three hydraulic pistons 213 to adapt to the changes in the soluble components inside the drug powder during the first, second and third extractions, so as to improve the extraction effect.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage countercurrent extraction device for traditional Chinese medicine, comprising a support frame (1), characterized in that: An extraction mechanism (2) is provided above the support frame (1): A pressure-applying component (21) is positioned above the support frame (1) to restrict the position of the Chinese medicine powder. The limiting component (22) includes a housing (221) disposed below the pressure application component (21). A limiting block (222) is fixedly installed on the front side of the housing (221). A partition (223) is movably installed inside the housing (221). A stepper motor (224) is fixedly installed on the front side of the limiting block (222). A solenoid valve (225) is fixedly installed on the rear side of the housing (221). A connecting pipe (226) is fixedly installed at the rear end of the solenoid valve (225). A booster pump (227) is fixedly installed at the rear end of the connecting pipe (226).

2. The multi-stage countercurrent extraction device for traditional Chinese medicine according to claim 1, characterized in that: The pressure application assembly (21) includes a limiting tube (211) fixedly installed above the support frame (1). An end cap (212) is fixedly installed at the front end of the limiting tube (211). A hydraulic piston (213) is inserted into the rear end of the limiting tube (211). A connecting base (214) is fixedly installed at the movable end of the hydraulic piston (213). A limiting frame (215) is fixedly installed on the outer side of the connecting base (214). A filter screen (216) is fixedly installed inside the limiting frame (215). A transmission block (217) is movably installed at the front end of the connecting base (214). A support column (218) is inserted into the inside of the transmission block (217). A rubber pad (219) is fixedly installed at the front end of the transmission block (217).

3. The multi-stage countercurrent extraction device for traditional Chinese medicine according to claim 2, characterized in that: There are three limiting tubes (211), and the limiting tubes (211) are installed vertically at equal intervals through the support frame (1). The movable end of the hydraulic piston (213) passes through the rear end of the limiting tube (211) and extends into the interior of the limiting tube (211). The front end center of the connecting base (214) is provided with a cylindrical protrusion with threads on the outside. The filter screen (216) is installed in an "X" shape inside the limiting frame (215) with the center of the limiting frame (215) as a reference.

4. The multi-stage countercurrent extraction device for traditional Chinese medicine according to claim 2, characterized in that: The outer edge of the limiting frame (215) contacts the inner wall of the limiting tube (211), and the limiting frame (215) and the limiting tube (211) form a sliding connection. The transmission block (217) is connected to the connecting base (214) through the thread on the outer side of the cylindrical structure of the connecting base (214). The support column (218) has horizontal honeycomb openings inside. Circular filter screens (216) are fixedly installed at both ends of the support column (218). The support column (218) is installed in an "X" shape inside the transmission block (217) with the center of the transmission block (217) as the reference. The surface of the rubber pad (219) has an opening structure with a hole diameter consistent with the outer diameter of the support column (218). The rear end of the limiting tube (211) is fixedly installed with a conveying pipe (23).

5. The multi-stage countercurrent extraction device for traditional Chinese medicine according to claim 1, characterized in that: The limiting component (22) is fixedly installed below the front end of the three limiting tubes (211) and above the front end of the top limiting tube (211). The outer shell (221) is fixedly connected to the limiting tube (211) through a flange structure. The partition (223) is rotatably connected to the outer shell (221) and the limiting block (222).

6. The multi-stage countercurrent extraction device for traditional Chinese medicine according to claim 1, characterized in that: A columnar protrusion is provided at the center of the partition (223), and the front end of the columnar structure on the front side of the partition (223) is fixedly connected to the rotating shaft of the stepper motor (224). The water outlet of the booster pump (227) is connected to the inner cavity of the outer shell (221) through the connecting pipe (226) and the solenoid valve (225). The solenoid valve (225) is installed above the partition (223). The bottom of the booster pump (227) is fixedly connected to the support frame (1). A receiving bucket (24) is fixedly installed on the top of the outer shell (221) of the support frame (1).

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