CN114311828B - Su seed oil extraction device - Google Patents
Su seed oil extraction device Download PDFInfo
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- CN114311828B CN114311828B CN202210025088.7A CN202210025088A CN114311828B CN 114311828 B CN114311828 B CN 114311828B CN 202210025088 A CN202210025088 A CN 202210025088A CN 114311828 B CN114311828 B CN 114311828B
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- oil
- piston
- screw shaft
- cavity
- threo
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- 235000015112 vegetable and seed oil Nutrition 0.000 title claims abstract description 19
- 238000000605 extraction Methods 0.000 title claims abstract description 18
- 235000019198 oils Nutrition 0.000 claims abstract description 159
- 238000007599 discharging Methods 0.000 claims abstract description 39
- 239000004519 grease Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 abstract description 20
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 124
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000001335 perilla frutescens leaf extract Substances 0.000 description 3
- 239000013049 sediment Substances 0.000 description 3
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000004347 Perilla Nutrition 0.000 description 1
- 241000229722 Perilla <angiosperm> Species 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Fats And Perfumes (AREA)
Abstract
The invention discloses a threo seed oil pressing device, which belongs to the technical field of oil pressing equipment and is provided with a bracket for erecting a pressing sleeve; the screw shaft is rotatably arranged in the pressing sleeve and forms an oil pressing cavity with the inner wall of the pressing sleeve, and the screw shaft is internally provided with an oil discharging cavity; the oil extraction device comprises an oil extraction cavity, a piston, a negative pressure mechanism, an oil suction chamber, an oil outlet and a rotary shaft, wherein the oil extraction cavity is arranged in the oil extraction cavity in a displacement manner, the piston is provided with the negative pressure mechanism, so that a closed or open oil suction chamber is formed between the piston and the closed end of the rotary shaft selectively, and the rotary shaft is communicated with the oil suction chamber through the oil outlet, so that oil in the oil extraction cavity is sucked into the oil suction chamber.
Description
Technical Field
The invention relates to the technical field of oil pressing equipment, in particular to a threo seed oil pressing device.
Background
The perilla seed oil is fully called as perilla seed oil, is natural oil with high unsaturation degree, contains alpha-linolenic acid as a main component, has the content of 50% -70%, fully retains the nutrition essence of the perilla seed, has long history of eating and medical use, and is refined by a traditional physical squeezing method;
at present, the traditional spiral oil press mainly comprises a bracket, a pressing sleeve, a screw shaft, a driving mechanism, a feed hopper, an oil collecting bottle, a slag collecting disc and other parts, wherein oil outlet holes are formed in the thread tooth surface of a conveying section of the screw shaft, so that large particle slag can be effectively prevented from entering the oil outlet, the residue rate in the oil outlet is effectively reduced, however, when the traditional spiral oil press is used, the oil outlet rate is relatively low, the oil production efficiency is influenced, in addition, the oil inlet of the oil inlet end of the oil outlet is relatively smaller than the oil outlet end in order to further prevent the slag from entering, and the oil inlet opening is relatively smaller than the oil outlet end, so that the oil production efficiency is further influenced;
therefore, based on the above-mentioned problems, how to solve the problems of low oil yield and influence on the oil production efficiency of the oil press in the prior art becomes an important technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a threo seed oil pressing device.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention discloses a threo seed oil pressing device, which comprises:
the bracket is used for erecting the squeezing sleeve;
the screw shaft is rotatably arranged in the pressing sleeve and forms an oil pressing cavity with the inner wall of the pressing sleeve, and the screw shaft is internally provided with an oil discharging cavity;
and the piston is arranged in the oil discharging cavity in a displaceable manner, and is provided with a negative pressure mechanism, so that a closed or open oil suction chamber is formed between the piston and the closed end of the screw shaft selectively, and the screw shaft is communicated with the oil suction chamber through an oil outlet, so that the oil in the oil discharging cavity is sucked into the oil suction chamber.
Further, the piston is provided with an expansion body;
the expansion body is tightly contacted with the side wall of the oil discharging cavity to form the negative pressure mechanism.
Further, the piston is of a disc structure, the side wall of the piston is in abutting contact with the side wall of the oil discharging cavity, a plurality of oil discharging channels are formed in the piston and used for discharging oil in the oil sucking cavity, and the area of the expansion body after being compressed and expanded covers the plurality of oil discharging channels.
Further, the piston comprises a body part and a pressure plate movably connected with the body part;
the expansion body is clamped between the body part and the pressure plate.
Further, the pressure plate is provided with a first plate body arranged on one side of the body part and a second plate body arranged on the other side of the body part;
the inner distance between the first disc body and the second disc body is equal to the sum of the expansion of the body portion and the expansion body.
Further, the pressure plate is fixedly connected with a driving rod;
the driving rod penetrates through the sealing end of the screw shaft;
the top end of the screw shaft is provided with a driver fixedly connected with the bracket, and the driver is connected with the driving rod.
Further, a through hole is formed in the sealing end of the screw shaft, and the through hole is in sealing contact with the driving rod through a sealing ring.
Further, the expansion body is an air bag or an elastic rubber ring.
Further, the oil discharge cavity is a cylindrical cavity with equal diameter, and the piston is displaced along the axial direction of the cylindrical cavity.
Further, the bracket is also provided with a driving mechanism;
the driving shaft of the driving mechanism is in transmission with a fluted disc gear arranged on the spiral shaft;
the upper part of the screw shaft is provided with a feed hopper;
the lower part of the screw shaft is provided with a material collecting mechanism.
In the technical scheme, the perilla seed oil pressing device provided by the invention has the beneficial effects that:
compared with the prior art, the oil pressing device provided by the invention has the advantages that the piston is arranged in the oil discharging cavity of the screw shaft, the piston is provided with the negative pressure mechanism, the piston and the closed end of the screw shaft selectively form the closed or open oil sucking chamber through the negative pressure mechanism, when the oil sucking chamber is closed, the piston is displaced, the volume of the oil sucking chamber is increased, and grease is rapidly sucked into the oil sucking chamber through the oil outlet, so that the oil yield is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of a threo seed oil press according to the present disclosure;
FIG. 2 is a partial cross-sectional view of the position A of FIG. 1;
FIG. 3 is a top view of the body portion of a piston of the threo seed oil extraction device of the present disclosure;
FIG. 4 is a schematic view of another use state of the threo seed oil extracting device according to the present invention;
fig. 5 is a partial cross-sectional view of the B position of fig. 4.
Reference numerals illustrate:
a bracket 10; a press jacket 11; an oil pressing chamber 111; a motor 12; a drive shaft 13; a driver 14;
a screw shaft 20; a discharge chamber 21; an oil suction chamber 211; an oil outlet hole 22; a fluted disc 23; a feed hopper 24; a slag collecting cavity 25; an oil collecting chamber 26;
a piston 30; an oil drain passage 31; a platen 32; a first tray 321; a second tray 322; a driving lever 33; an expansion body 34; the abutment surface 35.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
See fig. 1, 2;
the invention relates to a threo seed oil pressing device, which comprises:
a bracket 10 for mounting the press jacket 11;
a screw shaft 20 rotatably installed in the press jacket 11 and forming an oil-pressing chamber 111 with the inner wall of the press jacket 11, the screw shaft 20 having an oil-discharging chamber 21 therein;
a piston 30 having a negative pressure mechanism displaceably disposed in the oil discharge chamber 21, the piston 30 being provided such that the piston 30 selectively forms a closed or open oil suction chamber 211 with the closed end of the screw shaft 20, and the screw shaft 20 communicates with the oil suction chamber 211 through the oil outlet hole 22, thereby allowing the oil in the oil discharge chamber 111 to be sucked into the oil suction chamber 211.
Specifically, a support 10 provided by the oil squeezing device is fixedly connected with a squeezing sleeve 11, a screw shaft 20 is arranged in the squeezing sleeve 11, the screw shaft 20 can rotationally squeeze oil in the squeezing sleeve 11, an oil squeezing cavity 111 is formed between the outer wall of the screw shaft 20 and the inner wall of the squeezing sleeve 11, the upper section of the oil squeezing cavity 111 is a conveying section, the lower section is a squeezing section, the screw shaft 20 is a hollow sleeve with one end closed and the other end open, so that an oil draining cavity 21 is formed in the screw shaft 20, and an oil outlet 22 is formed on a screw thread surface of the screw shaft 20 positioned in the conveying section;
the oil discharging cavity 21 is internally provided with a piston 30, preferably, the oil discharging cavity 21 is a cylindrical cavity with equal diameter, the piston 30 is displaced along the axial direction of the cylindrical cavity, the piston 30 is provided with a negative pressure mechanism, a closed oil absorbing chamber 211 is formed between the oil discharging cavity 21 and the closed end of the screw shaft 20 through the negative pressure mechanism, when the piston 30 is displaced, the volume of the oil absorbing chamber 211 is increased, grease is rapidly sucked into the oil absorbing chamber 211 through the oil outlet 22, the oil outlet rate is improved, when the volume of the oil absorbing chamber 211 is reduced, the oil absorbing chamber 211 is opened, the grease is released, the grease is discharged, and the grease enters the oil collecting chamber 26 of the collecting mechanism from the oil discharging cavity 21 for storage;
see fig. 2;
preferably, the piston 30 is provided with an expansion body 34;
the expansion body 34 is in close contact with the side wall of the oil discharge chamber 21 to form a negative pressure mechanism, specifically, the oil suction chamber 211 is closed or opened by the negative pressure mechanism following the displacement of the piston 30. Preferably, the expansion body 34 is a balloon or an elastic rubber ring.
When the piston 30 is displaced downward as shown in fig. 2, the expansion body 34 is pressed and closely contacts with the side wall of the oil discharging cavity 21, so that the oil discharging cavity 21 is closed, the volume of the oil absorbing chamber 211 is increased, grease is rapidly sucked into the oil absorbing chamber 211 through the oil outlet 22, and when the piston 30 is displaced upward as shown in fig. 5, the expansion body 34 is pulled to be unfolded, the oil absorbing chamber 211 is opened, the grease is released, and the grease is discharged;
see fig. 2, 3;
preferably, the piston 30 is in a disc structure, the side wall of the piston 30 is abutted against the side wall of the oil discharging cavity 21, wherein the piston 30 is provided with a plurality of oil discharging channels 31 for discharging the grease in the oil sucking chamber 211, and the area of the expansion body 34 after being compressed and expanded covers the plurality of oil discharging channels 31.
Specifically, in the structure, through the expansion body 34, a plurality of oil discharging channels 31 are covered, so that the oil discharging channels 31 are closed, that is, the expansion body 34 can enable the oil discharging cavity 21 to form the oil sucking cavity 211 and can close the oil discharging channels 31, so that when the volume of the oil sucking cavity 211 is increased, grease is rapidly sucked into the oil sucking cavity 211 through the oil outlet 22;
the circumferential side wall of the piston 30 is provided with an abutting surface 35, the abutting surface 35 is in abutting contact with the side wall of the oil discharge cavity 21, friction force is generated between the abutting surface 35 and the side wall of the oil discharge cavity 21, so that resistance is provided when the piston 30 is displaced, when the piston 30 is displaced upwards, the piston 30 pulls the expansion body 34, the expansion body 34 is unfolded and separated from the side wall of the oil discharge cavity 21, the oil discharge channel 31 is opened, the oil suction cavity 211 is opened, and grease is released;
preferably, the piston 30 includes a body portion and a pressure plate 32 movably connected to the body portion, with an expansion body 34 sandwiched between the body portion and the pressure plate 32. Preferably, the platen 32 has a first plate 321 disposed at one side of the body portion and a second plate 322 disposed at the other side of the body portion;
the inner space between the first disk 321 and the second disk 322 is equal to the sum of the expansion of the body portion and the expansion body 34.
Specifically, referring to fig. 5, a first disc 321 and a second disc 322 are connected with a fixing rod, the fixing rod is slidably connected with a piston 30, the first disc 321 is located at the upper part of the piston 30, the second disc 322 is located at the lower part of the piston 30, one side of an expansion body 34 is fixedly connected with the lower surface of the first disc 321, the other side of the expansion body 34 is fixedly connected with the upper surface of the piston 30, and the expansion body 34 is extruded or stretched by the first disc 321;
see fig. 1, 2;
preferably, the pressure plate 32 is fixedly connected with a driving rod 33;
the driving rod 33 penetrates the sealing end of the screw shaft 20;
the top end of the screw shaft 20 is provided with a driver 14 fixedly connected with the bracket 10, and the driver 14 is connected with a driving rod 33. Preferably, the sealing end of the screw shaft 20 is provided with a through hole, and the through hole is in sealing contact with the driving rod 33 through a sealing ring.
Specifically, the driver 14 is a cylinder in the prior art, a cylinder piston rod is connected with the driving rod 33, and of course, the driving rod 33 can be a cylinder piston rod, when the piston rod extends, the piston 30 is displaced downwards, and when the piston rod retracts, the piston 30 is displaced upwards;
see fig. 1;
preferably, the bracket 10 is also provided with a driving mechanism;
the driving shaft 13 of the driving mechanism is in gear transmission with a fluted disc 23 arranged on the screw shaft 20;
the upper part of the screw shaft 20 is provided with a feed hopper 24;
the lower part of the screw shaft 20 is provided with a material collecting mechanism.
Specifically, the actuating mechanism includes motor 12 and drive shaft 13, and motor 12 has been linked firmly to the support 10 lateral part, and motor 12's power take off shaft and drive shaft 13 fixed connection, the fluted disc 23 gear drive that drive shaft 13 and screw shaft 20 set up, and drive screw shaft 20 is rotatory, and feeder hopper 24 has been installed on screw shaft 20 upper portion, puts in the oil through feeder hopper 24, and aggregate mechanism has been installed to screw shaft 20 lower part, and aggregate mechanism has collection sediment chamber 25 and oil collecting chamber 26, collects the oil sediment through collection sediment chamber 25, collects the fluid through oil collecting chamber 26.
In the technical scheme, the invention provides the threo seed oil pressing device, which has the working principle that:
the motor 12 is started, the screw shaft 20 rotates, oil is squeezed in the oil squeezing cavity 111 and generates grease, the grease enters an oil absorbing chamber 211 at the upper half section of the oil discharging cavity 21 through the oil outlet hole 22, the driver 14 drives the piston 30 to downwards displace, the piston 30 and the first disc 321 squeeze the expansion body 34, the expansion body 34 is tightly contacted with the side wall of the oil discharging cavity 21, so that the oil absorbing chamber 211 forms negative pressure, the volume of the oil absorbing chamber 211 is increased, the grease is sucked into the oil absorbing chamber 211 from the oil outlet hole 22, and when the piston 30 upwards displaces, the first disc 321 pulls the expansion body 34, the expansion body 34 is far away from the side wall of the oil discharging cavity 21, the oil absorbing chamber 211 is opened, and the grease is discharged from the oil discharging channel 31;
the beneficial effects are that: compared with the prior art, the oil extraction device provided by the invention has the advantages that the piston is arranged in the oil extraction cavity of the screw shaft, the piston is provided with the negative pressure mechanism, the piston and the closed end of the screw shaft selectively form a closed or open oil absorption chamber through the negative pressure mechanism, when the oil absorption chamber is closed, the piston is displaced, the volume of the oil absorption chamber is increased, and grease is rapidly sucked into the oil absorption chamber through the oil outlet, so that the oil yield is improved;
while certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (8)
1. A threo seed oil extraction device, comprising:
a bracket (10) for mounting the press jacket (11);
a screw shaft (20) rotatably mounted in the press sleeve (11) and forming a press oil chamber (111) with the inner wall of the press sleeve (11), the screw shaft (20) having an oil discharge chamber (21) therein;
a piston (30) which is displaceably disposed in the oil discharge chamber (21), the piston (30) being provided with a negative pressure mechanism so that the piston (30) and the closed end of the screw shaft (20) selectively form a closed or open oil suction chamber (211), the screw shaft (20) being in communication with the oil suction chamber (211) through an oil outlet hole (22) so that the oil in the oil discharge chamber (111) is sucked into the oil suction chamber (211);
wherein the piston (30) is provided with an expansion body (34), and the expansion body (34) is tightly contacted with the side wall of the oil discharging cavity (21) to form the negative pressure mechanism;
the piston (30) is in a disc structure, the side wall of the piston is in abutting contact with the side wall of the oil discharging cavity (21) and forms an abutting surface (35) in the circumferential direction, the piston (30) is provided with a plurality of oil discharging channels (31) for discharging grease in the oil sucking chamber (211), and the area of the expansion body (34) after being pressed and expanded is covered with the plurality of oil discharging channels (31);
during operation, the piston (30) is in abutting contact with the side wall of the oil discharging cavity (21) through the abutting surface (35), friction force is generated between the abutting surface (35) and the side wall of the oil discharging cavity (21), so that resistance is provided when the piston (30) is displaced, when the piston (30) is displaced upwards, the piston (30) pulls the expansion body (34), the expansion body (34) is unfolded and is far away from the side wall of the oil discharging cavity (21), the oil discharging channel (31) is opened, the oil absorbing chamber (211) is opened, and grease is released.
2. The threo seed oil extraction device of claim 1, wherein;
the piston (30) comprises a body part and a pressure plate (32) movably connected with the body part;
the expansion body (34) is sandwiched between the body portion and the pressure plate (32).
3. A threo seed oil extraction device according to claim 2, wherein;
the pressure plate (32) is provided with a first plate body (321) arranged on one side of the body part and a second plate body (322) arranged on the other side of the body part;
the inner distance between the first disc (321) and the second disc (322) is equal to the sum of the expansion of the body and the expansion body (34).
4. A threo seed oil extraction device according to claim 3, wherein;
the pressure plate (32) is fixedly connected with a driving rod (33);
the driving rod (33) penetrates through the sealing end of the screw shaft (20);
the top end of the screw shaft (20) is provided with a driver (14) fixedly connected with the bracket (10), and the driver (14) is connected with the driving rod (33).
5. The threo seed oil extraction device of claim 4, wherein;
the sealing end of the screw shaft (20) is provided with a through hole, and the through hole is in sealing contact with the driving rod (33) through a sealing ring.
6. The threo seed oil extraction device of claim 1, wherein;
the expansion body (34) is an air bag or an elastic rubber ring.
7. The threo seed oil extraction device of claim 1, wherein;
the oil discharging cavity (21) is a cylindrical cavity with equal diameter, and the piston (30) is displaced along the axial direction of the cylindrical cavity.
8. The threo seed oil extraction device of claim 1, wherein;
the bracket (10) is also provided with a driving mechanism;
the driving shaft (13) of the driving mechanism is in gear transmission with a fluted disc (23) arranged on the spiral shaft (20);
a feed hopper (24) is arranged at the upper part of the screw shaft (20);
the lower part of the screw shaft (20) is provided with a material collecting mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025088.7A CN114311828B (en) | 2022-01-11 | 2022-01-11 | Su seed oil extraction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025088.7A CN114311828B (en) | 2022-01-11 | 2022-01-11 | Su seed oil extraction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114311828A CN114311828A (en) | 2022-04-12 |
| CN114311828B true CN114311828B (en) | 2024-02-27 |
Family
ID=81026325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210025088.7A Active CN114311828B (en) | 2022-01-11 | 2022-01-11 | Su seed oil extraction device |
Country Status (1)
| Country | Link |
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| CN (1) | CN114311828B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200398611Y1 (en) * | 2005-07-15 | 2005-10-13 | 김경운 | pressure of a oil pressure |
| JP2007075859A (en) * | 2005-09-14 | 2007-03-29 | Noritake Co Ltd | Apparatus for automatically processing minute sludge |
| DE202007006308U1 (en) * | 2007-05-03 | 2007-07-12 | Schmieding, Peter | Pollen compressing device, comprises two hollow cylindrical parts and piston for removal of pollen cake |
| CN201168845Y (en) * | 2008-04-11 | 2008-12-24 | 闫晓虎 | Tin-suction device |
| CN202545668U (en) * | 2012-02-22 | 2012-11-21 | 超卓机械科技（上海）有限公司 | Oil pressure buffer |
| WO2016202911A1 (en) * | 2015-06-19 | 2016-12-22 | Serptec Gmbh | Screw press device |
| EP3321079A1 (en) * | 2016-11-03 | 2018-05-16 | Thomas Bruckner | Screw filter press for filtration and/or concentrating of a fluid, solids-laden suspension flow and method for filtration and/or concentrating |
| CN113828004A (en) * | 2021-11-04 | 2021-12-24 | 王鑫 | Convenient extraction process of traditional Chinese medicine effective substances in traditional Chinese medicine department |
-
2022
- 2022-01-11 CN CN202210025088.7A patent/CN114311828B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200398611Y1 (en) * | 2005-07-15 | 2005-10-13 | 김경운 | pressure of a oil pressure |
| JP2007075859A (en) * | 2005-09-14 | 2007-03-29 | Noritake Co Ltd | Apparatus for automatically processing minute sludge |
| DE202007006308U1 (en) * | 2007-05-03 | 2007-07-12 | Schmieding, Peter | Pollen compressing device, comprises two hollow cylindrical parts and piston for removal of pollen cake |
| CN201168845Y (en) * | 2008-04-11 | 2008-12-24 | 闫晓虎 | Tin-suction device |
| CN202545668U (en) * | 2012-02-22 | 2012-11-21 | 超卓机械科技（上海）有限公司 | Oil pressure buffer |
| WO2016202911A1 (en) * | 2015-06-19 | 2016-12-22 | Serptec Gmbh | Screw press device |
| EP3321079A1 (en) * | 2016-11-03 | 2018-05-16 | Thomas Bruckner | Screw filter press for filtration and/or concentrating of a fluid, solids-laden suspension flow and method for filtration and/or concentrating |
| CN113828004A (en) * | 2021-11-04 | 2021-12-24 | 王鑫 | Convenient extraction process of traditional Chinese medicine effective substances in traditional Chinese medicine department |
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| Publication number | Publication date |
|---|---|
| CN114311828A (en) | 2022-04-12 |
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