A traditional Chinese medicine extraction and concentration device and its concentration method

Abstract

The invention relates to the technical field of traditional Chinese medicine concentration, and particularly relates to a traditional Chinese medicine extraction and concentration device and a concentration method thereof; it includes a tank body, and a stirring mechanism and a steam heating mechanism are arranged inside the tank body. The stirring mechanism includes a rotating shaft, and a heating part and a peristaltic suction part for heating the traditional Chinese medicine from the middle of the traditional Chinese medicine are arranged on the rotating shaft. Through the synergistic effect of the stirring plate of the stirring mechanism, the heating part and the steam heating mechanism, the liquid medicine is evenly heated in the tank body. At the same time, the peristaltic suction part circulates and sucks the bottom liquid medicine to the upper part and discharges it, increasing the contact area between the liquid medicine and the steam, significantly improving the efficiency of traditional Chinese medicine concentration, and making the sediment part in the liquid medicine evenly distributed in the liquid medicine, which helps the heat and mass transfer to be more uniform and makes the solvent evaporation more efficient; at the same time, it can ensure the consistent distribution of the active ingredients in the liquid medicine and avoid the loss of ingredients caused by precipitation or stratification.

Description

Technical Field

[0001] The present invention relates to the technical field of traditional Chinese medicine concentration, and particularly relates to a traditional Chinese medicine extraction and concentration device and a concentration method thereof. Background Art

[0002] Traditional Chinese medicine concentration is a process of reducing the solvent in the extract of traditional Chinese medicine materials through processes such as evaporation and concentration, so as to reduce the volume of the liquid medicine and increase the concentration. The concentrated liquid medicine is convenient for subsequent processing, such as making pills, tablets, capsules, etc. The existing common traditional Chinese medicine concentration method is to place the liquid medicine in a storage tank, and then introduce steam into it for heating. During the heating process, a frame-type stirring rod is used for stirring to make the liquid medicine evenly heated until the liquid medicine is concentrated to a certain concentration.

[0003] Currently, the following main problems exist in the process of traditional Chinese medicine concentration and processing: 1. There are obvious limitations in the method of only heating by introducing steam into the storage tank. First, the heat distribution of steam heating is uneven, which easily causes local overheating or insufficient heating of the liquid medicine, affecting the concentration effect; second, the heat transfer efficiency relying solely on steam heating is low, the evaporation speed of the solvent in the liquid medicine is slow, the concentration time is long, and the energy consumption is high.

[0004] 2. Using a frame-type stirring rod for stirring, although a certain degree of mixing can be achieved, its stirring range and strength are limited, and it is difficult to fully disperse the sediment in the liquid medicine, so precipitation or stratification is likely to occur, resulting in uneven distribution of the components of the liquid medicine and causing loss of effective components. Summary of the Invention

[0005] In view of the above problems, the embodiments of the present invention provide a traditional Chinese medicine extraction and concentration device and a concentration method thereof to solve the above-mentioned technical problems.

[0006] To achieve the above object, the embodiments of the present invention provide the following technical solutions: In the first aspect of the embodiments of the present invention, a traditional Chinese medicine extraction and concentration device is provided, including a tank body; the lower end of the tank body is of a conical structure, the lower surface of the tank body is fixedly installed with the side wall of a support cylinder, the lower end of the tank body is communicated with a drain pipe, the other end of the drain pipe is fixedly penetrated through the support cylinder, the upper end of the tank body is installed with a cover plate, an infusion pipe is installed on the cover plate, and a stirring mechanism and a steam heating mechanism are arranged inside the tank body.

[0007] The stirring mechanism includes a rotating shaft. The rotating shaft is rotatably installed in the middle of the cover plate. The rotating shaft is of a cavity structure. The upper end of the rotating shaft penetrates through the upper end of the cover plate. A stepping motor with an output shaft fixedly connected to the rotating shaft is fixedly installed on the upper end of the cover plate through a motor base. A circular plate is fixedly installed in the inner cavity of the tank body. An opening and closing part is arranged on the circular plate. The outer wall of the rotating shaft is fixedly installed with fixing plates along its circumference at equal intervals. On the side of the fixing plate away from the rotating shaft, stirring plates located above the opening and closing part are fixedly installed evenly from top to bottom.

[0008] A heating part for heating traditional Chinese medicine from the middle of the traditional Chinese medicine and a peristaltic suction part for circulating and sucking the liquid medicine at the bottom to the upper part of the liquid surface for discharging so as to evenly distribute the sediment are arranged on the rotating shaft. The steam heating mechanism includes an annular shell provided with a plurality of air outlet holes and located above the stirring plate.

[0009] The peristaltic suction part includes a limiting cylinder. The inner cavity of the rotating shaft is uniformly and fixedly installed with limiting cylinders along its axial direction. A blocking disc is coaxially and rotatably installed in the limiting cylinder. A U-shaped suction hose is placed between the outer wall of the blocking disc and the side wall of the limiting cylinder. Both ends of the suction hose penetrate through the limiting cylinder. A pressing wheel in contact with the suction hose is rotatably installed on the blocking disc. A coaxial shaft rod is fixedly installed among all the blocking discs. The lower end of the shaft rod rotatably penetrates through the rotating shaft and then fixedly penetrates through the circular plate. A guiding part for guiding the flow of the liquid medicine is arranged on the limiting cylinder.

[0010] As a preferred scheme, the guiding part includes a liquid inlet pipe. The liquid inlet end of the suction hose is fixedly installed with a liquid inlet pipe, and the liquid outlet end of the suction hose is fixedly installed with a liquid outlet pipe. A liquid storage tank fixedly installed on the rotating shaft is arranged between two adjacent limiting cylinders. The other end of the liquid outlet pipe penetrates from bottom to top into the upper adjacent liquid storage tank. A U-shaped pipe is arranged at the lower end of the liquid storage tank. Both ports of the U-shaped pipe are communicated with the inside of the liquid storage tank. The other end of the liquid inlet pipe penetrates from top to bottom into the lower adjacent liquid storage tank and is communicated with one end of the corresponding U-shaped pipe. A liquid outlet hole communicated with the uppermost liquid inlet pipe is arranged at the upper end of the rotating shaft; the lower end of the lowermost liquid inlet pipe is communicated with a Z-shaped pipe. The other vertical section of the Z-shaped pipe is coaxial with the rotating shaft and fixedly penetrates through the rotating shaft. The shaft rod rotatably penetrates through the vertical section where the liquid inlet end of the Z-shaped pipe is located.

[0011] As a preferred scheme, the opening and closing part includes a liquid discharging assembly. A plurality of groups of liquid discharging assemblies are uniformly arranged on the circular plate along its circumferential direction. Each group of liquid discharging assemblies is composed of a plurality of liquid discharging holes uniformly distributed along the radial direction of the circular plate. A shaft column is fixedly installed at the lower end of the shaft rod. A circular ring is movably installed on the shaft column through a guiding member. A support plate corresponding to the liquid discharging assembly is fixedly installed on the outer wall of the circular ring along its circumferential direction. A plugging head corresponding to the liquid discharging hole is fixedly installed at the upper end of the support plate. A pushing and pulling member for driving the circular ring to move up and down is arranged on the tank body.

[0012] As a preferred scheme, the pushing and pulling member includes a cylinder. A cylinder is slidably sleeved on the shaft column. The upper end of the cylinder is rotatably connected with the circular ring. The lower end of the cylinder is fixedly installed with a Z-shaped shaft. The other vertical section of the Z-shaped shaft slidably penetrates through the lower end of the tank body. A telescopic cylinder with a telescopic section fixedly connected with the corresponding vertical section of the Z-shaped shaft is fixedly installed on the lower surface of the tank body through a bracket.

[0013] As a preferred solution, the steam heating mechanism further includes an air supply pipe. A concentric annular shell is fixedly installed at the lower end of the cover plate. Air outlet holes are evenly formed at the lower end of the annular shell. An air supply pipe communicating with the annular shell and an exhaust pipe communicating with the tank body are fixedly installed at the upper end of the cover plate.

[0014] As a preferred solution, the guiding member includes a guiding groove. A guiding groove is formed on the outer wall of the shaft column. The guiding groove is composed of a vertical section and an arc section connected to the lower end of the vertical section and surrounding the circumferential surface of the shaft column. A guide post slidably matched with the guiding groove is fixedly installed on the inner wall of the circular ring.

[0015] As a preferred solution, the heating part includes a heating pipe. An annular groove is formed between the inner wall and the outer wall of the rotating shaft. Heating pipes are evenly installed in the annular groove along its circumference. The stirring plate is of a hollow structure and communicates with the annular groove.

[0016] As a preferred solution, a circular pipe communicating with the liquid outlet hole is fixedly installed on the rotating shaft. Circular holes are evenly formed on the lower surface of the circular pipe along its axial direction.

[0017] The second aspect of the embodiment of the present invention provides a traditional Chinese medicine extraction and concentration method, which is completed in cooperation with the above-mentioned traditional Chinese medicine extraction and concentration device, and includes the following steps: S1. Inject the liquid medicine into the tank body through the infusion pipe.

[0018] S2. The stirring mechanism and the steam heating mechanism stir and heat the liquid medicine in the tank body.

[0019] S3. The peristaltic suction part circulates and suctions the liquid medicine to accelerate the concentration of the liquid medicine.

[0020] S4. After the concentration is completed, the opening and closing part is started to communicate the upper and lower sides of the inner cavity of the tank body, and the concentrated liquid is discharged.

[0021] One or more of the above technical solutions in the embodiment of the present invention have at least one of the following technical effects: First, through the synergistic effect of the stirring plate of the stirring mechanism, the heating part and the steam heating mechanism, the liquid medicine is evenly heated in the tank body. At the same time, the peristaltic suction part circulates and suctions the bottom liquid medicine to the upper part and discharges it, increasing the contact area between the liquid medicine and the steam, significantly improving the efficiency of traditional Chinese medicine concentration, and making the precipitation part in the liquid medicine evenly distributed in the liquid medicine, which helps the heat and mass transfer to be more uniform and makes the solvent evaporation more efficient; at the same time, it can ensure the consistent distribution of the effective components in the liquid medicine and avoid the loss of components caused by precipitation or stratification.

[0022] Second, while the stirring mechanism stirs the traditional Chinese medicine, the peristaltic suction part circulates and exchanges the bottom liquid medicine and the upper liquid medicine to improve the uniformity of traditional Chinese medicine heating and the uniform dispersion degree of the precipitate, so as to ensure the quality of traditional Chinese medicine concentration. At the same time, through the heating part and the steam heating mechanism, the liquid medicine is heated from the inside and outside, improving the efficiency of traditional Chinese medicine concentration.

[0023] 3. The stirring mechanism provided by the present invention stirs the traditional Chinese medicine through the rotating stirring plate, making the temperature distribution of the liquid medicine more uniform during the heating process, avoiding local overheating or insufficient heating, preventing the precipitation or stratification of solid components in the liquid medicine, ensuring the uniformity of the liquid medicine components, and at the same time driving the liquid medicine in the lower layer to be pumped to the upper layer by the peristaltic suction part, so that the upper and lower layers of the liquid medicine are circulated and exchanged, further making the traditional Chinese medicine evenly heated and improving the concentration effect of the traditional Chinese medicine.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0027] Figure 2 It is a structural schematic diagram of the stirring mechanism of the present invention.

[0028] Figure 3 It is a structural schematic diagram of the steam heating mechanism of the present invention.

[0029] Figure 4 It is a structural schematic diagram of the guiding member of the present invention.

[0030] Figure 5 It is a structural schematic diagram of the heating part of the present invention.

[0031] Figure 6 It is a structural schematic diagram of the peristaltic suction part of the present invention.

[0032] Figure 7 It is a distribution diagram of the peristaltic suction part of the present invention.

[0033] Figure 8 It is a structural schematic diagram of the guiding member of the present invention.

[0034] Reference numerals: 10, tank body; 11, support cylinder; 12, liquid discharge pipe; 13, cover plate; 14, infusion pipe; 2, stirring mechanism; 20, rotating shaft; 21, stepper motor; 22, circular plate; 23, fixing plate; 24, stirring plate; 25, peristaltic suction part; 250, limiting cylinder; 251, retaining disc; 252, pressing wheel; 253, suction hose; 254, shaft rod; 4, guiding part; 40, liquid inlet pipe; 41, liquid outlet pipe; 42, circular pipe; 43, liquid storage tank; 44, Z-shaped pipe; 45, U-shaped pipe; 26, opening and closing part; 260, shaft column; 261, ring; 262, support plate; 263, plugging head; 5, pushing and pulling part; 50, cylinder; 51, Z-shaped shaft; 52, telescopic cylinder; 6, guiding part; 60, guiding groove; 61, guide post; 27, heating part; 270, heating pipe; 3, steam heating mechanism; 30, annular shell; 31, air supply pipe; 32, exhaust pipe. Detailed implementation manners

[0035] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0036] As Figure 1 、 Figure 2 and Figure 3 shown, a traditional Chinese medicine extraction and concentration device includes a tank body 10; the lower end of the tank body 10 is a conical structure, the lower surface of the tank body 10 is fixedly installed with a support cylinder 11, the lower end of the tank body 10 is communicated with a liquid discharge pipe 12, the other end of the liquid discharge pipe 12 fixedly penetrates the side wall of the support cylinder 11, the upper end of the tank body 10 is installed with a cover plate 13, an infusion pipe 14 is installed on the cover plate 13, and a stirring mechanism 2 and a steam heating mechanism 3 are arranged inside the tank body 10.

[0037] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the stirring mechanism 2 includes a rotating shaft 20. The middle part of the cover plate 13 is rotatably installed with the rotating shaft 20. The rotating shaft 20 is a cavity structure. The upper end of the rotating shaft 20 penetrates through the upper end of the cover plate 13. A stepping motor 21 with an output shaft fixedly connected to the rotating shaft 20 is fixedly installed on the upper end of the cover plate 13 through a motor base. A circular plate 22 is fixedly installed in the inner cavity of the tank body 10. A support is installed on the lower end surface of the rotating shaft 20, and the lower end of the support abuts against the upper end surface of the circular plate 22. An opening and closing part 26 is arranged on the circular plate 22. Fixing plates 23 are uniformly and fixedly installed on the outer wall of the rotating shaft 20 along its circumference. Stirring plates 24 located above the opening and closing part 26 are uniformly and fixedly installed on one side of the fixing plate 23 away from the rotating shaft 20; A heating part 27 for heating the liquid medicine from the middle of the liquid medicine is arranged on the rotating shaft 20, and a peristaltic suction part 25 for circulating and sucking the bottom liquid medicine to the upper part of the liquid surface and discharging it to make the sediment evenly distributed.

[0038] During specific operation, an external infusion mechanism is communicated with the infusion pipe 14, and a certain amount of liquid medicine is conveyed into the tank body 10. After the conveyance is completed, the steam heating mechanism 3 and the heating part 27 heat the liquid medicine in the tank body 10 to evaporate the solvent in the liquid medicine, leaving high-concentration active ingredients. At the same time, the stirring mechanism 2 drives the rotating shaft 20 to rotate through the stepping motor 21, and the rotating shaft 20 stirs the liquid medicine in the tank body 10 through the stirring plates 24 to make the liquid medicine evenly heated. Moreover, the peristaltic suction part 25 sucks the bottom liquid medicine to the upper part of the liquid surface and then discharges it. By circulating in this way, the sediment in the liquid medicine is evenly dispersed, which helps the heat and mass transfer to be more uniform and makes the solvent evaporation more efficient; at the same time, it can ensure the consistent distribution of the active ingredients in the liquid medicine and avoid the loss of ingredients caused by precipitation or stratification. The adopted method of performing multiple heating while the liquid medicine is circulated and sucked and discharged greatly improves the efficiency of traditional Chinese medicine concentration.

[0039] As Figure 1 、 Figure 2 and Figure 3 shown, the steam heating mechanism 3 includes an annular shell 30. The annular shell 30 concentric with it is fixedly installed at the lower end of the cover plate 13. Air outlet holes are uniformly opened at the lower end of the annular shell 30. An air supply pipe 31 communicated with the annular shell 30 and an exhaust pipe 32 communicated with the tank body 10 are fixedly installed at the upper end of the cover plate 13.

[0040] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5As shown, the heating part 27 includes a heating pipe 270. A ring groove is formed between the inner wall and the outer wall of the rotating shaft 20. The heating pipes 270 are evenly installed along the circumferential direction of the ring groove. The stirring plate 24 is of a hollow structure and is communicated with the ring groove. It should be noted that a conductive slip ring with a fixed outer ring, a rotating inner ring and coaxial with the rotating shaft 20 is provided at the upper end of the cover plate 13. The outer ring of the conductive slip ring is arranged on the cover plate 13, and a wire is installed on the inner ring of the conductive slip ring. The wire passes through the rotating shaft 20 to the ring groove and is connected to the heating pipe 270, thus avoiding the situation of wire winding during the rotation of the rotating shaft 20.

[0041] During specific operation, an external steam generator is communicated with the air supply pipe 31. The air supply pipe 31 is provided with an intake check valve (not shown in the figure). The air supply pipe 31 evenly discharges steam into the tank body 10 from the air outlet holes of the annular shell 30, so as to improve the contact between the steam and the liquid medicine. When the steam contacts the relatively cold traditional Chinese medicine extraction liquid, it will condense into water and release a large amount of latent heat. This part of the heat is directly used to heat the traditional Chinese medicine. An exhaust check valve (not shown in the figure) is arranged in the exhaust pipe 32. After the pressure in the tank body 10 reaches a certain value (the internal pressure can be accurately controlled by setting a pressure sensor), an external suction pump extracts the steam and the evaporated water vapor in the tank body 10 through the exhaust pipe 32 to ensure that the pressure in the tank body 10 is within a safe range. The extracted steam and water vapor can be recycled for heating the liquid medicine in the tank body 10 after being processed by corresponding filtering and drying equipment. At the same time, the heating pipe 270 is electrified to release heat, and the liquid medicine is stirred by the rotating shaft 20 and the stirring plate 24, so that the liquid medicine is evenly heated, thereby improving the efficiency of traditional Chinese medicine concentration.

[0042] As Figure 3 、 Figure 4 、 Figure 6 and Figure 7 shown, the peristaltic suction part 25 includes a limiting cylinder 250. The limiting cylinders 250 are evenly and fixedly installed along the axial direction of the inner cavity of the rotating shaft 20. A blocking disc 251 is coaxially and rotatably installed in the limiting cylinder 250. A U-shaped suction hose 253 is placed between the outer wall of the blocking disc 251 and the side wall of the limiting cylinder 250. The suction hose 253 is made of a hose material with high elasticity, high temperature resistance and fatigue resistance, such as high-elasticity silica gel, to reduce the deformation or wear caused by rotational friction. Both ends of the suction hose 253 penetrate through the limiting cylinder 250. A pressing wheel 252 that presses against the suction hose 253 is rotatably installed on the blocking disc 251. A coaxial shaft rod 254 is fixedly installed among all the blocking discs 251. The lower end of the shaft rod 254 rotatably penetrates through the rotating shaft 20 and then fixedly penetrates through the circular plate 22. A guiding member 4 for guiding the flow of the liquid medicine is provided on the limiting cylinder 250.

[0043] As Figure 3 、 Figure 4 、 Figure 6 and Figure 7As shown, the guiding member 4 includes a liquid inlet pipe 40. The liquid inlet end of the suction hose 253 is fixedly installed with the liquid inlet pipe 40, and the liquid outlet end of the suction hose 253 is fixedly installed with a liquid outlet pipe 41. A liquid storage tank 43 fixedly installed on the rotating shaft 20 is arranged between two adjacent limiting cylinders 250. The other end of the liquid outlet pipe 41 penetrates upward through the upper adjacent liquid storage tank 43. A U-shaped pipe 45 is arranged at the lower end of the liquid storage tank 43. Both ports of the U-shaped pipe 45 are communicated with the inside of the liquid storage tank 43. The other end of the liquid inlet pipe 40 penetrates downward through the lower adjacent liquid storage tank 43 and is communicated with one end of the corresponding U-shaped pipe 45. A liquid outlet hole communicated with the uppermost liquid inlet pipe 40 is opened at the upper end of the rotating shaft 20. The lower end of the lowermost liquid inlet pipe 40 is communicated with a Z-shaped pipe 44. The other vertical section of the Z-shaped pipe 44 is coaxial with the rotating shaft 20 and fixedly penetrates through the rotating shaft 20. Since the vertical section where the liquid inlet end of the Z-shaped pipe 44 is located is coaxial with the rotating shaft 20, the linear velocity of the Z-shaped pipe 44 approaches zero, so the centrifugal force is almost zero, thus effectively avoiding the interference of the centrifugal force and ensuring that the liquid medicine is smoothly sucked. The shaft rod 254 rotates through the vertical section where the liquid inlet end of the Z-shaped pipe 44 is located. A circular pipe 42 communicated with the liquid outlet hole is fixedly installed on the rotating shaft 20. The lower surface of the circular pipe 42 is uniformly provided with circular holes along its axial direction.

[0044] During specific operation, when the rotating shaft 20 rotates, it will drive the limiting cylinder 250 and the suction hose 253 to rotate slowly in the positive direction, while the blocking disc 251 remains stationary under the limiting restriction of the shaft rod 254. As the limiting cylinder 250 and the suction hose 253 rotate, the pressing wheel 252 will cyclically squeeze the suction hose 253. Thus, according to the peristaltic pump principle: the pressing wheel 252 squeezes the suction hose 253 to make it closed, and pushes the fluid in the suction hose 253 towards the liquid outlet end direction. After the squeezing point moves away, the suction hose 253 relies on elasticity to restore its original shape, generating negative pressure, thereby sucking in new fluid. During the periodic squeezing and releasing process, the suction hose 253 is continuously compressed and restored, forming continuous suction and transportation, that is, continuous fluid transportation. The lowermost liquid inlet pipe 40 and the Z-shaped pipe 44 suck the liquid medicine at the lower part of the tank body 10 into the suction hose 253, and then suck it into the liquid outlet pipe 41, and discharge it into the corresponding liquid storage tank 43 through the liquid outlet pipe 41. While the corresponding upper suction hose 253 sucks the liquid medicine in the corresponding liquid storage tank 43 into the next liquid storage tank 43 through the liquid inlet pipe 40 and the U-shaped pipe 45. By this operation, the liquid medicine is pumped from bottom to top to the uppermost liquid storage tank 43. The uppermost suction hose 253 sucks the liquid in the corresponding liquid storage tank 43 into the circular pipe 42 and discharges it from several circular holes on the circular pipe 42, so as to uniformly disperse the previous sediment, achieve the effect of material leveling in the up and down directions, and at the same time increase the contact area between the liquid medicine and the steam, thereby improving the efficiency of traditional Chinese medicine concentration.

[0045] It should be noted that Figure 4 、 Figure 6 、Figure 7 Although only two pressing wheels 252 are shown corresponding to each baffle 251, the number of pressing wheels 252 corresponding to each baffle 251 is not limited to two, but at least two. By increasing the number of pressing wheels 252, the extrusion interval can be reduced to maintain a more continuous negative pressure and improve the stability of the suction force.

[0046] After concentration is completed, the opening and closing part 26 is started to connect the upper and lower sides of the inner cavity of the tank body 10. Then, the stepping motor 21 drives the rotating shaft 20 to rotate in the reverse direction, and the rotating shaft 20 stirs the liquid medicine through the stirring plate 24 so that the liquid medicine is discharged while keeping the sediment evenly distributed.

[0047] As Figure 2 、 Figure 3 、 Figure 4 and Figure 8 shown, the opening and closing part 26 includes a liquid discharge assembly. A plurality of groups of liquid discharge assemblies are evenly arranged along the circumference of the circular plate 22. Each group of liquid discharge assemblies is composed of a plurality of liquid discharge holes evenly distributed along the radial direction of the circular plate 22. A shaft column 260 is fixedly installed at the lower end of the shaft rod 254. The shaft column 260 is movably installed with a ring 261 through a guiding member 6. A supporting plate 262 corresponding to the liquid discharge assembly is fixedly installed along the circumference of the outer wall of the ring 261. A plugging head 263 corresponding to the liquid discharge hole is fixedly installed at the upper end of the supporting plate 262. A pushing and pulling member 5 for driving the ring 261 to move up and down is arranged on the tank body 10.

[0048] As Figure 2 、 Figure 3 and Figure 8 shown, the pushing and pulling member 5 includes a cylinder 50. The cylinder 50 is slidably sleeved on the shaft column 260. The upper end of the cylinder 50 is rotatably connected to the ring 261. A Z-shaped shaft 51 is fixedly installed at the lower end of the cylinder 50. The other vertical section of the Z-shaped shaft 51 slidably penetrates through the lower end of the tank body 10. A telescopic cylinder 52 with a telescopic section fixedly connected to the corresponding vertical section of the Z-shaped shaft 51 is fixedly installed on the lower surface of the tank body 10 through a bracket.

[0049] As Figure 3 、 Figure 4 and Figure 8 shown, the guiding member 6 includes a guiding groove 60. The guiding groove 60 is formed on the outer wall of the shaft column 260. The guiding groove 60 is composed of a vertical section and an arc section connected to the circumferential surface of the shaft column 260 at the lower end of the vertical section. A guide post 61 slidably matched with the guiding groove 60 is fixedly installed on the inner wall of the ring 261.

[0050] During specific operation, the telescopic cylinder 52 pulls the ring 261 downward through the Z-shaped shaft 51 and the cylinder 50. At this time, the guide post 61 slides within the vertical section of the guiding groove 60 until the ring 261 drives the plugging head 263 to completely disengage from the corresponding liquid discharge hole through the support plate 262. At this time, the guide post 61 is located at the connection between the vertical section and the arc section of the guiding groove 60. After that, as the ring 261 continues to move downward, the guide post 61 will slide within the arc section of the guiding groove 60. Thus, under the cooperation of the guide post 61 and the arc section of the guiding groove 60, the ring 261 rotates. The ring 261 then drives the plugging head 263 away from the corresponding liquid discharge hole through the support plate 262 to ensure the smooth discharge of the concentrated liquid. The discharged concentrated liquid is then discharged through the liquid discharge pipe 12 for subsequent operations.

[0051] After the discharge is completed, the telescopic cylinder 52 pushes the ring 261 upward through the Z-shaped shaft 51 and the cylinder 50. The ring 261 then drives the ring 261 to rotate under the cooperation of the guide post 61 and the arc section of the guiding groove 60. The ring 261 then drives the plugging head 263 to be directly below the corresponding liquid discharge hole through the support plate 262. At this time, the guide post 61 is located at the connection between the arc section and the vertical section of the guiding groove 60. As the ring 261 continues to move upward, under the cooperation of the guide post 61 and the vertical section of the guiding groove 60, the ring 261 moves vertically upward and drives the plugging head 263 to plug the liquid discharge hole. At this time, the concentration of the next batch of medicinal liquid can be carried out.

[0052] As Figures 1 to 8 shown, in addition, the present invention also provides a method for extracting and concentrating traditional Chinese medicine, which is completed in cooperation with the above-mentioned traditional Chinese medicine extraction and concentration device, including the following steps: S1. Inject the medicinal liquid into the tank body 10 through the infusion pipe 14.

[0053] S2. The stirring mechanism 2 stirs the medicinal liquid in the tank body 10 through the stirring plate 24, and at the same time heats the medicinal liquid in multiple directions through the steam heating mechanism 3 and the heating part 27 to improve the efficiency of traditional Chinese medicine concentration.

[0054] S3. The peristaltic suction part 25 sucks and discharges the medicinal liquid from bottom to top in a circulating manner to ensure the uniform dispersion of the sediment in the medicinal liquid and increase the contact area between the medicinal liquid and the steam, thereby further improving the efficiency of traditional Chinese medicine concentration.

[0055] S4. After the concentration is completed, the opening and closing part 26 is started to connect the upper and lower sides of the inner cavity of the tank body 10. At the same time, the stirring mechanism 2 stirs the concentrated liquid, so that the concentrated liquid is discharged while being stirred.

[0056] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary instructions, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself. In addition, in the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0057] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "connected", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A Chinese medicine extraction and concentration device, comprising a tank body (10), the lower end of the tank body (10) is a conical structure, a support tube (11) is fixedly installed on the lower surface of the tank body (10), the lower end of the tank body (10) is connected with a drainage pipe (12), the other end of the drainage pipe (12) is fixedly passed through the side wall of the support tube (11), the upper end of the tank body (10) is installed with a cover plate (13), and an infusion tube (14) is installed on the cover plate (13), characterized in that: A stirring mechanism (2) and a steam heating mechanism (3) are arranged inside the tank body (10); wherein: The stirring mechanism (2) comprises a rotating shaft (20) rotatably mounted in the middle of the cover plate (13); the rotating shaft (20) is a hollow structure; a circular plate (22) is fixedly mounted in the inner cavity of the tank body (10); an opening and closing portion (26) for controlling the communication between the upper and lower sides of the inner cavity of the tank body (10) is arranged on the circular plate (22); stirring plates (24) located above the opening and closing portion (26) are evenly fixedly mounted on the outer side of the rotating shaft (20) from top to bottom; The rotating shaft (20) is provided with a heating portion (27) for heating the liquid medicine from the inside and a peristaltic suction portion (25); the steam heating mechanism (3) comprises an annular shell (30) provided with a plurality of air outlet holes and located above the stirring plate (24); The peristaltic suction part (25) comprises a limiting cylinder (250) which is evenly fixedly installed in the inner cavity of the rotating shaft (20) along its axial direction, a baffle (251) is coaxially rotatably installed in the limiting cylinder (250), a suction hose (253) is placed between the outer wall of the baffle (251) and the side wall of the limiting cylinder (250), a pressure wheel (252) for pressing the suction hose (253) is rotatably installed on the baffle (251), the baffle (251) is coaxially fixedly installed on the same shaft (254), and the shaft (254) is rotatably connected to the rotating shaft (20) and fixedly connected to the circular plate (22); The limiting cylinder (250) is provided with a guide member (4) which cooperates with the peristaltic suction unit (25) to circulate and suck the bottom liquid medicine to the top of the liquid surface for discharge.

2. A Chinese medicine extraction and concentration device according to claim 1, characterized in that: The opening and closing portion (26) includes a drainage component. The circular plate (22) is provided with a plurality of groups of drainage components evenly arranged along its circumference. Each group of drainage components is composed of a plurality of drainage holes evenly distributed along the radial direction of the circular plate (22). The lower end of the shaft rod (254) is fixedly passed through the circular plate (22). A shaft column (260) is fixedly installed at the lower end of the shaft rod (254). A circular ring (261) is movably installed on the shaft column (260) through a guide member (6). A support plate (262) corresponding to the drainage component is fixedly installed on the outer wall of the circular ring (261) along its circumference. A sealing head (263) corresponding to the drainage hole is fixedly installed on the upper end of the support plate (262). A push-pull member (5) for driving the circular ring (261) to move up and down is provided on the tank body (10).

3. A Chinese medicine extraction and concentration device according to claim 1, characterized in that: The guide member (4) comprises a liquid inlet pipe (40), the liquid inlet end of the suction hose (253) is fixedly mounted with the liquid inlet pipe (40), the liquid outlet end of the suction hose (253) is fixedly mounted with a liquid outlet pipe (41), a liquid storage tank (43) fixedly mounted on the rotating shaft (20) is arranged between two adjacent limiting cylinders (250), the other end of the liquid outlet pipe (41) penetrates from bottom to top into the adjacent liquid storage tank (43) above, a U-shaped pipe (45) is arranged at the lower end of the liquid storage tank (43), and both ends of the U-shaped pipe (45) are connected to the storage tank (43). The interior of the liquid tank (43) is connected, the other end of the liquid inlet pipe (40) penetrates from top to bottom into the adjacent liquid storage tank (43) below and is connected to one end of the corresponding U-shaped pipe (45), the upper end of the rotating shaft (20) is provided with a liquid outlet hole connected to the uppermost liquid inlet pipe (40); the lower end of the lowermost liquid inlet pipe (40) is connected to a Z-shaped pipe (44), the other vertical section of the Z-shaped pipe (44) is coaxial with the rotating shaft (20) and fixedly penetrates the rotating shaft (20), and the shaft (254) rotates and penetrates the vertical section where the liquid inlet end of the Z-shaped pipe (44) is located.

4. A Chinese medicine extraction and concentration device according to claim 2, characterized in that: The push-pull member (5) comprises a cylinder (50), the cylinder (50) is slidably sleeved on the shaft column (260), the upper end of the cylinder (50) is rotatably connected to the ring (261), the lower end of the cylinder (50) is fixedly mounted with a Z-shaped shaft (51), the other vertical section of the Z-shaped shaft (51) slides through the lower end of the tank body (10), and a telescopic cylinder (52) is fixedly mounted on the lower surface of the tank body (10) through a bracket, the telescopic section being fixedly connected to the vertical section corresponding to the Z-shaped shaft (51).

5. The Chinese medicine extraction and concentration device according to claim 1, characterized in that: The steam heating mechanism (3) further comprises an air supply pipe (31), a co-centric annular shell (30) is fixedly mounted on the lower end of the cover plate (13), air outlet holes are evenly arranged at the lower end of the annular shell (30), and an air supply pipe (31) connected to the annular shell (30) and an exhaust pipe (32) connected to the tank body (10) are fixedly mounted on the upper end of the cover plate (13).

6. A Chinese medicine extraction and concentration device according to claim 2, characterized in that: The guide member (6) comprises a guide groove (60). The outer wall of the shaft column (260) is provided with the guide groove (60). The guide groove (60) is composed of a vertical section and an arc section connected to the lower end of the vertical section and surrounding the circumferential surface of the shaft column (260). The inner wall of the circular ring (261) is fixedly provided with a guide column (61) which is slidably matched with the guide groove (60).

7. The Chinese medicine extraction and concentration device according to claim 1, characterized in that: The heating part (27) comprises a heating tube (270), an annular groove is provided between the inner wall and the outer wall of the rotating shaft (20), the heating tubes (270) are evenly installed in the annular groove along its circumference, the stirring plate (24) is a hollow structure, and the stirring plate (24) is connected to the annular groove.

8. The Chinese medicine extraction and concentration device according to claim 3, characterized in that: A circular tube (42) connected to the liquid outlet hole is fixedly mounted on the rotating shaft (20), and circular holes are evenly opened on the lower surface of the circular tube (42) along its axial direction.

9. The Chinese medicine extraction and concentration device according to claim 1, characterized in that: The suction hose (253) has a U-shaped structure, and both ends of the suction hose (253) penetrate the limiting cylinder (250).

10. A method for extracting and concentrating traditional Chinese medicine, characterized in that: The Chinese medicine extraction and concentration device as claimed in claim 1 is used to complete the process, comprising the following steps: S1, injecting the drug solution into the tank body (10) through the infusion tube (14); S2, the stirring mechanism (2) and the steam heating mechanism (3) stir and heat the liquid medicine in the tank body (10); S3, the peristaltic suction unit (25) circulates and sucks the liquid medicine from bottom to top, accelerating the concentration of the liquid medicine; S4. After the concentration is completed, the opening and closing part (26) is started to connect the upper and lower sides of the inner cavity of the tank body (10) to discharge the concentrated liquid.

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