CN111659156A - Continuous countercurrent extraction method and equipment for traditional Chinese medicine - Google Patents
Continuous countercurrent extraction method and equipment for traditional Chinese medicine Download PDFInfo
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- CN111659156A CN111659156A CN202010560058.7A CN202010560058A CN111659156A CN 111659156 A CN111659156 A CN 111659156A CN 202010560058 A CN202010560058 A CN 202010560058A CN 111659156 A CN111659156 A CN 111659156A
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- traditional chinese
- chinese medicine
- storage device
- continuous countercurrent
- countercurrent extraction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/0288—Applications, solvents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D2011/002—Counter-current extraction
Abstract
The invention discloses a continuous countercurrent extraction method and equipment for traditional Chinese medicines, and belongs to the technical field of traditional Chinese medicine extraction. The first rotating piece of the continuous countercurrent extraction equipment for traditional Chinese medicine is positioned at the center of the inner part of the cylinder body; an annular channel is formed between the first rotating piece and the inner wall of the cylinder body, and the rotating directions of the first rotating piece and the second rotating piece are opposite; the traditional Chinese medicine storage device is uniformly distributed on the outer wall of the second rotating piece, a feed inlet is formed in the top of the traditional Chinese medicine storage device, a discharge outlet is formed in the bottom of the traditional Chinese medicine storage device, a first electromagnetic valve is arranged at the discharge outlet, and a plurality of water permeable holes for enabling a solvent to enter the interior of the traditional Chinese medicine storage device and to be in contact with traditional Chinese medicines are formed in the peripheral wall of the traditional Chinese medicine storage device; and the plurality of traditional Chinese medicine stirring mechanisms are used for stirring the medicines in the traditional Chinese medicine storage device. The continuous countercurrent extraction equipment for traditional Chinese medicine has small volume, simple structure and lower production cost, and overcomes the defects of heavy weight, long length and large loss of spiral continuous countercurrent extraction equipment.
Description
Technical Field
The invention relates to the technical field of traditional Chinese medicine extraction, in particular to a continuous countercurrent extraction method and equipment for traditional Chinese medicines.
Background
The traditional methods mainly comprise an immersion method, a decoction method and the like, and the extraction method mainly comprises manual operation and static extraction and has low production efficiency.
Continuous dynamic countercurrent extraction refers to the process of extraction, in which materials and a solvent continuously move at the same time, but the movement method is opposite, the materials and the solvent are fully contacted through mechanical transmission and continuous quantitative feeding, the solvent in the equipment is continuously updated, the method has the advantages of shortening the production period and reducing the dosage of the solvent, and simultaneously, the concentration of liquid medicine can be increased, the recovery rate of the solvent is reduced, and the production efficiency is improved.
At present, the conventional spiral continuous countercurrent extraction equipment in the prior art has the defects of large whole machine volume, heavy appearance, longer equipment, incapability of driving a part of materials due to the fact that the equipment is long and the maximum power of a motor is limited, uneven material stirring and reduced extraction rate.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a method and equipment for continuously and reversely extracting traditional Chinese medicines.
The invention provides a continuous countercurrent extraction method and equipment for traditional Chinese medicines, which comprises the following steps:
the barrel is provided with a cover body;
the first rotating piece is positioned at the center of the inner part of the cylinder body and is used for enabling water flow to flow in the same direction;
the second rotating piece is arranged above the first rotating piece; the rotating directions of the first rotating piece and the second rotating piece are opposite, the first rotating piece 2 and the second rotating piece 3 are connected through a bearing, and an annular channel is formed between the first rotating piece 2 and the second rotating piece 3 and the inner wall of the cylinder body 1;
the traditional Chinese medicine storage device is uniformly distributed on the outer wall of the second rotating piece, a feed inlet is formed in the top of the traditional Chinese medicine storage device, a discharge outlet is formed in the bottom of the traditional Chinese medicine storage device, a first electromagnetic valve is arranged at the discharge outlet, and a plurality of water permeable holes for enabling a solvent to enter the interior of the traditional Chinese medicine storage device and to be in contact with traditional Chinese medicines are formed in the peripheral wall of the traditional Chinese medicine storage device;
and the plurality of traditional Chinese medicine stirring mechanisms are used for stirring the medicines in the traditional Chinese medicine storage device.
Preferably, the traditional Chinese medicine stirring mechanism comprises a spring and a dendritic elastic rod arranged on the spring, one end of the spring is arranged on the outer wall of the second rotating piece, and the other end of the spring is connected with the dendritic elastic rod.
Preferably, the second rotating member is a variable-diameter rotating column, the outer surface of the rotating column is provided with a protruding part and a recessed part, the springs of the traditional Chinese medicine stirring mechanisms are respectively arranged at the protruding part and the recessed part, and the rotating column is driven by the first motor.
Preferably, the traditional Chinese medicine storage device comprises a frame forming the main structure of the traditional Chinese medicine storage device, and an elastic filter screen is further arranged on the outer wall of the frame.
Preferably, the lower part of discharge gate is equipped with the collection bag that is used for accepting the dregs of a decoction, and the collection bag sets up in the bottom of second rotating member.
Preferably, the collecting bag is connected with the discharge port through a connecting piece, the connecting piece is rotatably connected with the upper end of the collecting bag, the connecting piece is provided with a second electromagnetic valve, the collecting bag is further connected with a negative pressure pump, and the negative pressure pump is used for extracting the liquid medicine in the collecting bag and discharging the extracted liquid medicine into the solvent in the barrel.
Preferably, the first rotating member comprises a rotating seat and blades arranged on the peripheral wall of the rotating seat, and the rotating seat is connected with a second motor arranged at the bottom of the cylinder body.
Preferably, the bottom of the cylinder body is provided with a liquid outlet.
Preferably, the cover body is provided with a feeding pipe, the feeding pipe is communicated with the top of the traditional Chinese medicine storage device, and the cover body is provided with an annular opening matched with the feeding pipe.
The extraction method of the continuous countercurrent extraction equipment for the traditional Chinese medicine comprises the following steps:
installing the continuous countercurrent extraction equipment for the traditional Chinese medicine;
closing the first electromagnetic valve, and adding the traditional Chinese medicine into the traditional Chinese medicine storage device;
adding solvent into the cylinder, and soaking the Chinese medicinal materials for 1-2 hr;
starting the first rotating member and the second rotating member, reversely rotating the traditional Chinese medicine and the solvent, and simultaneously increasing the full contact between the traditional Chinese medicine and the solvent under the action of the plurality of traditional Chinese medicine stirring mechanisms until the concentration difference between the liquid medicine concentration in the traditional Chinese medicine storage device and the liquid medicine concentration in the annular channel is less than 10%;
after part of the liquid medicine and the traditional Chinese medicine are discharged, new solvent and the traditional Chinese medicine are supplemented, and continuous countercurrent extraction is realized until the extraction is finished.
Compared with the prior art, the invention has the beneficial effects that: the continuous countercurrent extraction equipment for traditional Chinese medicine has small volume, simple structure and lower production cost, and overcomes the defects of heavy weight, long length and large loss of spiral continuous countercurrent extraction equipment.
According to the invention, the first rotating piece and the second rotating piece realize the reverse movement of the traditional Chinese medicine and the solvent, and the traditional Chinese medicine is stirred by the traditional Chinese medicine stirring mechanism to be overturned, so that the comprehensive contact between the traditional Chinese medicine and the solvent is promoted, and the extraction rate is improved;
the spring of the medicine stirring mechanism generates a centrifugal effect under the rotation of the second rotating part to stir the traditional Chinese medicine, the cylinder of the second rotating part is designed into a diameter-variable structure in order to increase the stirring effect, so that the centrifugal forces of the springs corresponding to different diameters are different, the difference of horizontal stirring effects is large, the stability of the traditional Chinese medicine in the longitudinal direction is reduced, the effect of fluid is combined to realize the complete contact between the medicinal material and the solvent, and the extraction rate is improved.
The invention also absorbs the liquid medicine absorbed in the medicine dregs through the negative pressure device, thereby reducing the loss of the active ingredients, reducing the usage amount of the solvent and reducing the extraction cost;
the extraction method is based on the extraction equipment, the extraction efficiency is high, and the extraction cost is low.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of the present invention;
fig. 3 is a schematic structural diagram of the cover of the present invention.
Description of reference numerals:
1. the automatic cleaning machine comprises a barrel, 11 a cover body, 12 a feeding pipe, 13 an annular opening, 2 a first rotating member, 21 a rotating seat, 22 paddles, 3 a second rotating member, 4 a traditional Chinese medicine storage device, 41 a feeding hole, 42 a discharging hole, 43 a first electromagnetic valve, 44 a frame, 45 an elastic filter screen, 5 a traditional Chinese medicine stirring mechanism, 51 a spring, 52 a dendritic elastic rod, 6 a collecting bag, 7 a connecting member, 8 a negative pressure pump, 9 a first motor and 10 a second motor.
Detailed Description
Detailed description of the preferred embodimentsthe following detailed description of the present invention will be made with reference to the accompanying drawings 1-3, although it should be understood that the scope of the present invention is not limited to the specific embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention provides a method and a device for continuously countercurrent extracting traditional Chinese medicine, comprising the following steps: .
The device comprises a barrel body 1, wherein a cover body 11 is arranged on the barrel body 1;
the first rotating member 2 is positioned at the center of the inner part of the cylinder body 1 and is used for enabling water flow to flow in the same direction;
the second rotating member 3 is arranged above the first rotating member 2, and the rotating directions of the first rotating member 2 and the second rotating member 3 are opposite; the first rotating member 2 and the second rotating member 3 are connected through a bearing, and an annular channel is formed between the first rotating member 2 and the second rotating member 3 and the inner wall of the cylinder 1.
The traditional Chinese medicine storage device 4 is uniformly distributed on the outer wall of the second rotating part 3, a feed inlet 41 is formed in the top of the traditional Chinese medicine storage device 4, a discharge outlet 42 is formed in the bottom of the traditional Chinese medicine storage device 4, a first electromagnetic valve 43 is arranged at the discharge outlet 42, and a plurality of water permeable holes for enabling a solvent to enter the traditional Chinese medicine storage device 4 and to be in contact with traditional Chinese medicines are formed in the peripheral wall of the traditional Chinese medicine storage device 4;
a plurality of traditional Chinese medicine stirring mechanisms 5 for stirring the medicines in the traditional Chinese medicine storage device 4.
Wherein, the traditional Chinese medicine stirring mechanism 5 comprises a spring 51 and a dendritic elastic rod 52 arranged on the spring 51, one end of the spring 51 is arranged on the outer wall of the second rotating member 3, and the other end of the spring 51 is connected with the dendritic elastic rod 52. Mainly utilize the centrifugal force that produces when second rotating member 3 rotates to make spring 51 outwards extend, realize stirring to the medicine, make the medicine different faces and solvent fully contact, improve extraction efficiency.
Wherein, the second rotating member 3 is a variable-diameter rotating column, the outer surface of the rotating column is provided with a protruding part and a recessed part, the spring 51 of each traditional Chinese medicine stirring mechanism 5 is respectively arranged at the protruding part and the recessed part, and the rotating column is driven by the first motor 9. In order to avoid that all traditional chinese medicine rabbling mechanisms 5 are the simultaneous movement, produce the dead angle region that is difficult to stir easily, consequently design second rotating member 3 for the cylinder that the diameter changes, different diameter departments all set up traditional chinese medicine rabbling mechanism 5, when second rotating member 3 rotated, because of the diameter is different, the centrifugal force is different, so the stirring region of each traditional chinese medicine rabbling mechanism 5 carries out the dislocation, and the stirring dynamics is different, realizes the more comprehensive stirring to traditional chinese medicine, improves the extraction effect once more.
Wherein, traditional chinese medicine storage device 4 includes the frame 44 that constitutes its major structure, still be equipped with elastic filter screen 45 on the outer wall of frame 44. Aim at can block traditional chinese medicine entering annular region through elastic filter screen 45, but at water impact to and under the centrifugal action that second rotating member 3 rotated the production, the medicine also can outwards expand, increase and the area of contact of solvent, therefore the elastic filter screen 45 of this embodiment is satisfying and is blockking the motion range that does not restrict traditional chinese medicine when traditional chinese medicine exposes.
Wherein, the lower part of discharge gate 42 is equipped with the collection bag 6 that is used for accepting the dregs of a decoction, and collection bag 6 sets up in the bottom of second rotating member 3.
Wherein, collect bag 6 and be connected with discharge gate 42 through connecting piece 7, and connecting piece 7 and the upper end rotatable coupling who collects bag 6, be equipped with the second solenoid valve on the connecting piece 7, collect bag 6 and still be connected with negative pressure pump 8, negative pressure pump 8 is used for extracting the liquid medicine in collecting bag 6 to in the solvent of barrel 1 is arranged into to the liquid medicine that will extract. Aim at will adsorb the liquid medicine that high-efficient concentration is high in the medicinal material takes out through the negative pressure before the medicinal material is discharged, reduces the partial waste of drug effect, improves and draws concentration, reduces and draws the cost.
Wherein, first rotating member 2 includes roating seat 21 and sets up the paddle 22 on roating seat 21 periphery wall, roating seat 21 is connected with the second motor 10 that sets up in barrel 1 bottom.
Wherein, the bottom of the cylinder body 1 is provided with a liquid outlet.
Wherein, be equipped with filling tube 12 on the lid 11, filling tube 12 and traditional chinese medicine storage device 4's top intercommunication, be equipped with the annular mouth 13 that matches with the filling tube on the lid 11.
The extraction method of the continuous countercurrent extraction equipment for the traditional Chinese medicine comprises the following steps:
installing the continuous countercurrent extraction equipment for the traditional Chinese medicine;
closing the first electromagnetic valve 43, and adding the traditional Chinese medicine into the traditional Chinese medicine storage device 4;
adding solvent into the barrel 1, and soaking the traditional Chinese medicine for 1-2 h;
starting the first rotating part 2 and the second rotating part 3, reversely rotating the traditional Chinese medicine and the solvent, and simultaneously increasing the full contact between the traditional Chinese medicine and the solvent under the action of the plurality of traditional Chinese medicine stirring mechanisms 5 until the concentration difference between the liquid medicine concentration in the traditional Chinese medicine storage device 4 and the liquid medicine concentration in the annular channel is less than 10%;
after part of the liquid medicine and the traditional Chinese medicine are discharged, new solvent and the traditional Chinese medicine are supplemented, and continuous countercurrent extraction is realized until the extraction is finished.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A continuous countercurrent extraction equipment for traditional Chinese medicine is characterized by comprising:
the device comprises a barrel body (1), wherein a cover body (11) is arranged on the barrel body (1);
the first rotating piece (2) is positioned at the center of the interior of the barrel body (1) and is used for enabling water flow to flow in the same direction;
the second rotating part (3) is arranged above the first rotating part (2), the rotating directions of the first rotating part (2) and the second rotating part (3) are opposite, the first rotating part (2) and the second rotating part (3) are connected through a bearing, and an annular channel is formed between the first rotating part (2) and the second rotating part (3) and the inner wall of the cylinder body (1);
the traditional Chinese medicine storage device (4) is uniformly distributed on the outer wall of the second rotating piece (3), a feed inlet (41) is formed in the top of the traditional Chinese medicine storage device (4), a discharge outlet (42) is formed in the bottom of the traditional Chinese medicine storage device (4), a first electromagnetic valve (43) is arranged at the discharge outlet (42), and a plurality of water permeable holes for enabling a solvent to enter the interior of the traditional Chinese medicine storage device (4) and to be in contact with traditional Chinese medicines are formed in the peripheral wall of the traditional Chinese medicine storage device (4;
a plurality of traditional Chinese medicine stirring mechanisms (5) for stirring the medicines in the traditional Chinese medicine storage device (4).
2. The continuous countercurrent extraction apparatus for chinese traditional medicine according to claim 1, wherein said chinese traditional medicine agitating mechanism (5) comprises a spring (51) and a dendritic elastic bar (52) provided on the spring (51), one end of said spring (51) is provided on the outer wall of the second rotating member (3), and the other end of the spring (51) is connected to the dendritic elastic bar (52).
3. The continuous countercurrent extraction method and apparatus of traditional Chinese medicine as claimed in claim 2, characterized in that the second rotary member (3) is a variable diameter rotary column, the outer surface of the rotary column is provided with a protrusion and a recess, the spring (51) of each traditional Chinese medicine stirring mechanism (5) is respectively provided at the protrusion and the recess, and the rotary column is driven by the first motor (9).
4. The continuous countercurrent extraction equipment for traditional Chinese medicine according to claim 3, wherein said traditional Chinese medicine storage device (4) comprises a frame (44) forming the main structure thereof, and an elastic filter screen (45) is further arranged on the outer wall of said frame (44).
5. The continuous countercurrent extraction equipment for traditional Chinese medicine according to claim 1, characterized in that a collecting bag (6) for receiving the dregs is arranged below the discharge port (42), and the collecting bag (6) is arranged at the bottom of the second rotating member (3).
6. The continuous countercurrent extraction equipment for traditional Chinese medicines according to claim 5, characterized in that the collection bag (6) is connected with the discharge port (42) through a connecting piece (7), the connecting piece (7) is rotatably connected with the upper end of the collection bag (6), a second electromagnetic valve is arranged on the connecting piece (7), the collection bag (6) is further connected with a negative pressure pump (8), and the negative pressure pump (8) is used for extracting the liquid medicine in the collection bag (6) and discharging the extracted liquid medicine into the solvent in the barrel (1).
7. The continuous countercurrent extraction equipment for traditional Chinese medicine according to claim 1, characterized in that said first rotating member (2) comprises a rotating base (21) and paddles (22) arranged on the peripheral wall of the rotating base (21), said rotating base (21) being connected to a second motor (10) arranged at the bottom of the barrel (1).
8. The continuous countercurrent extraction equipment for traditional Chinese medicine according to claim 1, characterized in that the bottom of the cylinder body (1) is provided with a liquid outlet.
9. The continuous countercurrent extraction method and equipment for traditional Chinese medicine according to claim 1, characterized in that the cover (11) is provided with a feeding tube (12), the feeding tube (12) is communicated with the top of the traditional Chinese medicine storage device (4), and the cover (11) is provided with an annular port (13) matched with the feeding tube.
10. The extraction method of the continuous countercurrent extraction equipment for the traditional Chinese medicine according to any one of the above claims 1 to 9, which is characterized by comprising the following steps:
installing the continuous countercurrent extraction equipment for the traditional Chinese medicine;
closing the first electromagnetic valve (43), and adding the traditional Chinese medicine into the traditional Chinese medicine storage device (4);
adding a solvent into the cylinder body (1), and soaking the traditional Chinese medicine for 1-2 h;
starting the first rotating part (2) and the second rotating part (3), reversely rotating the traditional Chinese medicine and the solvent, and simultaneously increasing the full contact between the traditional Chinese medicine and the solvent under the action of the plurality of traditional Chinese medicine stirring mechanisms (5) until the concentration difference between the liquid medicine concentration in the traditional Chinese medicine storage device (4) and the liquid medicine concentration in the annular channel is less than 10%;
after part of the liquid medicine and the traditional Chinese medicine are discharged, new solvent and the traditional Chinese medicine are supplemented, and continuous countercurrent extraction is realized until the extraction is finished.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010560058.7A CN111659156B (en) | 2020-06-18 | 2020-06-18 | Continuous countercurrent extraction method and equipment for traditional Chinese medicine |
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| CN202010560058.7A CN111659156B (en) | 2020-06-18 | 2020-06-18 | Continuous countercurrent extraction method and equipment for traditional Chinese medicine |
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| CN111659156A true CN111659156A (en) | 2020-09-15 |
| CN111659156B CN111659156B (en) | 2022-03-25 |
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| CH602178A5 (en) * | 1974-05-22 | 1978-07-31 | Eszakmagyar Vegyimuevek | Intensification of transport reactions |
| RU2210589C1 (en) * | 2001-12-26 | 2003-08-20 | Кузнецов Виталий Николаевич | Vegetable oil extraction method and apparatus |
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