CN112500932A - Device and method for improving extraction efficiency and quality of rhizome-type spice plants - Google Patents
Device and method for improving extraction efficiency and quality of rhizome-type spice plants Download PDFInfo
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- CN112500932A CN112500932A CN202011476478.3A CN202011476478A CN112500932A CN 112500932 A CN112500932 A CN 112500932A CN 202011476478 A CN202011476478 A CN 202011476478A CN 112500932 A CN112500932 A CN 112500932A
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- 235000013599 spices Nutrition 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000000605 extraction Methods 0.000 title claims description 32
- 238000002386 leaching Methods 0.000 claims abstract description 150
- 239000002904 solvent Substances 0.000 claims abstract description 57
- 239000002994 raw material Substances 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 12
- 239000011229 interlayer Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 6
- 230000033001 locomotion Effects 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 20
- 244000303040 Glycyrrhiza glabra Species 0.000 description 4
- 235000006200 Glycyrrhiza glabra Nutrition 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- LPLVUJXQOOQHMX-QWBHMCJMSA-N glycyrrhizinic acid Chemical compound O([C@@H]1[C@@H](O)[C@H](O)[C@H](O[C@@H]1O[C@@H]1C([C@H]2[C@]([C@@H]3[C@@]([C@@]4(CC[C@@]5(C)CC[C@@](C)(C[C@H]5C4=CC3=O)C(O)=O)C)(C)CC2)(C)CC1)(C)C)C(O)=O)[C@@H]1O[C@H](C(O)=O)[C@@H](O)[C@H](O)[C@H]1O LPLVUJXQOOQHMX-QWBHMCJMSA-N 0.000 description 3
- 235000011477 liquorice Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 241001579180 Matthiola longipetala Species 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000001453 Glycyrrhiza echinata Nutrition 0.000 description 1
- 235000017382 Glycyrrhiza lepidota Nutrition 0.000 description 1
- 244000284012 Vetiveria zizanioides Species 0.000 description 1
- 235000007769 Vetiveria zizanioides Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004401 flow injection analysis Methods 0.000 description 1
- 229940010454 licorice Drugs 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/025—Recovery by solvent extraction
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Seasonings (AREA)
Abstract
The invention relates to the technical field of natural spice processing equipment, in particular to a device and a method for improving leaching efficiency and quality of rhizome spice plants. The device comprises the following components: the device comprises a leaching tank (13), a heat insulation layer (12) sleeved outside the leaching tank (13), a circulating leaching pipeline (14), a steam supply mechanism and a compressed air supply mechanism; wherein a rotating shaft (29) is arranged in the leaching tank (13) in the axial direction, and a spiral hollow scraper (28) is arranged on the rotating shaft (29). According to the device, the spiral hollow scraper is adopted to repeatedly lift the plant raw materials upwards, and the solvent continuously flows from top to bottom through the circulating pump, so that the raw materials and the solvent are continuously subjected to counter-current relative movement in the leaching process, and the raw materials and the solvent are contacted more fully. Meanwhile, the compressed air nozzles on the inner walls of the middle lower part of the leaching tank jet the raw materials, so that the root raw materials can be fully contacted with the solvent in the leaching process, and the leaching is accelerated.
Description
Technical Field
The invention relates to the technical field of natural spice processing equipment, in particular to a device and a method for improving leaching efficiency and quality of rhizome spice plants.
Background
The aromatic plants, such as liquorice, vetiver and the like, which take the rhizome as a main extraction and utilization part, have the following problems easily occurring in the extraction process due to the characteristics of compact tissue structure, strong toughness, large specific gravity and the like of the raw materials: (1) the conventional stirring extraction equipment (such as paddle type and anchor type stirrer extraction equipment) is adopted, the material turnover degree is not high, the raw materials (especially matched raw materials) are seriously layered in an extraction tank after being continuously extracted for a period of time, and the plant raw materials and the solvent cannot be fully and uniformly contacted, so that the separation time of effective components in the raw materials is long, the energy consumption is high, and the quality of an extracting solution is difficult to control; (2) the countercurrent extraction equipment is adopted, the raw materials are mostly conveyed in a spiral cylinder type or extracted in a tank group type, the process flow is complex, the extraction equipment is large in size and large in cost investment, and the problems that the raw materials are blocked and the like easily occur in gaps of feeding and stirring devices (such as scraping plates and the like) in the continuous extraction process due to the fact that the root raw materials are high in sugar content and high in flexibility and elasticity after being soaked are solved, and the equipment for spiral feeding, stirring and the like is seriously abraded; (3) the rhizome raw materials have compact tissue structure, uneven water content, poor solvent permeability, slow permeation rate and long leaching time, and influence the quality of the extracting solution.
Disclosure of Invention
The present invention is proposed in order to solve at least one of the above-mentioned problems.
The invention provides a device for improving the leaching efficiency and quality of rhizome-type spice plants, which comprises the following components: the device comprises a leaching tank 13, a heat insulation layer 12 sleeved outside the leaching tank 13, a circulating leaching pipeline 14, a steam supply mechanism and a compressed air supply mechanism;
wherein a rotating shaft 29 is axially arranged in the leaching tank 13, a spiral hollow scraper 28 arranged around the rotating shaft 29 is mounted on the rotating shaft 29, a feeding movable door 6 and a solvent inlet pipeline connected with a solvent inlet valve 8 are arranged at the top of the leaching tank 13, a discharging movable door 20 and a leaching liquor outlet pipeline connected with a leaching liquor outlet valve 17 are arranged at the bottom of the leaching tank 13, a circulating leaching pipeline 14 is connected with the solvent inlet valve 8 and the leaching liquor outlet valve 17, and a circulating pump 10 is mounted on the circulating leaching pipeline 14;
a steam supply mechanism provides a steam interlayer 12 between the leaching tank 13 and the heat-insulating layer 12;
a compressed air supply mechanism provides compressed air into the leach tank 13.
Preferably, the compressed air supply mechanism includes: a compressed air safety valve 26, a compressed air inlet pipe 24 and a compressed air nozzle 23 which are connected with each other, wherein the compressed air nozzle 23 is arranged on the inner wall of the middle part and the inner wall of the lower part of the leaching tank 13.
The compressed air supply mechanism further includes a compressor.
Preferably, the lower end of the rotating shaft 29 is connected with a movable sieve plate 22, and the outer edge of the movable sieve plate 22 is in contact with the inner wall of the leaching tank 13. The movable sieve plate 22 is used for receiving root-type spice plants.
Preferably, the top of the leaching tank 13 is provided with a leaching tank pressure gauge 4 and at least one leaching tank pressure regulating valve 3 to detect and regulate the pressure inside the leaching tank 13.
The bottom of the leaching tank 13 is provided with a thermometer to detect the temperature therein.
Preferably, the bottom of the leaching tank 13 is provided with a filter 19 to filter the residue of the rhizome-type spice plants.
Preferably, the helical hollow flight 28 is of a double helix configuration around the axis of rotation 29. Each section of the spiral structure of the spiral hollow scraper 28 is an independent arc-shaped piece, the axial section of the arc-shaped piece is arc-shaped, and the concave surface faces the rotating shaft 29. The scraper stay 28 is arranged perpendicular to the rotation shaft 29. The scraper stay 28 passes through the rotating shaft 29, one end of the same scraper stay 28 is connected with the middle part of the arc-shaped piece, and the other end of the scraper stay 28 is connected with the end part of the next arc-shaped piece and the end part of the previous arc-shaped piece.
A screed brace 28 may also be attached to the non-end of the arcuate blade for better securement.
Preferably, the helical hollow flight 28 is mounted to the shaft 29 by a flight brace 27.
Preferably, food-grade sealing gaskets are arranged at the positions of the feeding movable door 6 and the discharging movable door 20, so that certain pressure can be maintained in the leaching tank 13, and leaching of the root-type spice plants can be completed more quickly.
Preferably, the steam interlayer 12 is provided with a steam inlet 1 and a steam safety valve 2, so that the heating temperature of the leaching tank 13 can be adjusted according to the requirement in production.
Preferably, the heat-insulating layer is made of asbestos.
Preferably, the leaching tank 13 is made of a metal material which has high thermal conductivity and good sealing effect and can bear a certain pressure.
Preferably, the pitch of the spiral hollow scraper 28 is 600-1200 mm.
In a second aspect, the present invention provides a method of improving the efficiency and quality of extraction of a root-type spice plant, the method being carried out using an apparatus according to the first aspect of the invention, the method comprising the steps of:
closing a discharge movable door 20 at the bottom of the leaching tank 13 and a leaching liquor outlet valve 17;
the root-type spice plant raw material enters the leaching tank 13 through the feeding movable door 6, and the solvent enters the leaching tank 13 through the solvent inlet pipeline;
heating operation: starting a steam supply mechanism, providing a steam interlayer 12 between the leaching tank 13 and the heat insulation layer 12, and heating the leaching tank 13;
and (3) pressurizing operation: starting a compressed air supply mechanism, providing compressed air into the extraction tank 13, pressurizing the extraction tank 13, and promoting the stirring and uniform mixing of the root-type spice plant raw materials and the solvent by the airflow injection of the compressed air;
and (3) material stirring operation: starting a rotating shaft 29, driving the spiral hollow scraper 28 to rotate, and repeatedly lifting and stirring the root-stem spice plant raw materials upwards;
solvent countercurrent circulation operation: opening a leaching liquor outlet valve 17, and under the action of the circulating pump 10, realizing countercurrent circulation of the solvent in the leaching tank 13 through the leaching liquor outlet valve 17, the circulating leaching pipeline 14 and the solvent inlet valve 8;
the leaching under four combined operations of heating, pressurizing, material stirring and solvent countercurrent circulation is realized.
In the leaching tank 13, the root-stem type spice plant raw material moves from bottom to top, and the solvent moves from top to bottom, so that the root-stem type spice plant raw material and the solvent are in countercurrent contact, and the contact effect is better.
Preferably, the heating operation and the pressurizing operation may be performed simultaneously or alternatively.
Preferably, when the leaching operation is carried out, the temperature in the leaching tank 13 is controlled to be 45-90 ℃, and the pressure in the leaching tank 13 is controlled to be 1-2 atmospheric pressures, namely 0.1-0.2 Mpa, by the cooperation of the pressure regulating valve 3 of the leaching tank and the pressure gauge 4 of the leaching tank in the pressurizing process.
Preferably, the mass ratio of the solvent to the root-stem type spice plant raw material is less than 3, namely the material-liquid ratio is less than 1: 3.
Preferably, the rhizome-type spice plant is mechanically crushed and has a size of 20 meshes or more.
The technical scheme can be freely combined on the premise of no contradiction.
The invention has the following beneficial effects:
1. according to the device, the spiral hollow scraper is adopted to repeatedly lift the plant raw materials upwards (namely, uniformly stir), and the solvent continuously flows from top to bottom through the circulating pump, so that the raw materials and the solvent continuously generate countercurrent relative motion in the leaching process, and the raw materials and the solvent are contacted more fully. Meanwhile, the compressed air nozzles on the inner wall of the middle lower part of the leaching tank jet the air flow to the raw materials, so that the full contact between the rhizome raw materials with different shapes and specific gravity and the solvent can be improved in the leaching process, and the leaching is accelerated.
2. Aiming at the characteristics of compact tissue structure and the like of the rhizome perfume plants, the device can carry out high-efficiency extraction (the extraction rate of raw materials is more than 85%) of the rhizome perfume plants under the conditions of lower material-liquid ratio (less than 1:3) and shorter extraction time (less than 2h) by combining multiple functions of heating (45-90 ℃), pressurizing (0.1-0.2 Mpa), material stirring, solvent countercurrent circulation and the like, and has less impurities in the extract and high quality.
3. The device integrates various functions of accelerating extraction, can realize single and comprehensive extraction functions of pressure extraction, heating extraction and simultaneous heating and pressure extraction of the root aromatic plants, stirring of raw materials, countercurrent circulating extraction of solvents and the like by simple operation, and can realize the optimal extraction process aiming at the characteristics and the tissue structure of specific root raw materials.
4. In the whole region, the dispersion of material relies on spiral cavity scraper blade takes place the rotation and realizes, and the structure of spiral cavity scraper blade can enough drive the material upward movement, can make the material fall from the cavity again, and be unlikely to block the material. In the local area, the dispersion of material relies on carrying out the air current of compressed air nozzle to spout and realize, and the air current sprays can be more even with raw materials and solvent dispersion, is unlikely to take place the local phenomenon of reuniting of raw materials, improves the area of contact of raw materials and solvent. Therefore, the raw material and the solvent are uniformly dispersed throughout the entire region and in the local region, and they are sufficiently contacted.
Drawings
Fig. 1 is a schematic view of the overall structure of an apparatus according to embodiment 1 of the present invention.
FIG. 2 is a schematic view showing the structure of a leaching tank and a spiral hollow scraper.
List of reference numerals:
1. a steam inlet; 2. a steam safety valve; 3. a pressure regulating valve of the leaching tank; 4. a pressure gauge of the leaching tank; 5. a drive motor; 6. a feed movable door; 7. a solvent inlet; 8. a solvent inlet three-way valve; 9. a solvent circulation pipeline pressure gauge; 10. a circulation pump; 11. a heat-insulating layer; 12. a steam interlayer; 13. a leaching tank; 14. circulating the leaching pipeline; 15. steam sandwich drain valves; 16. a support; 17. a leaching liquor outlet three-way valve; 18. a leaching liquor outlet; 19. a filter; 20. a discharge movable door; 21. a leaching tank thermometer; 22. a movable sieve plate; 23. a compressed air nozzle; 24. a compressed air inlet pipe; 25. a working platform; 26. a compressed air safety valve; 27. a scraper stay bar; 28. a helical hollow scraper; 29. a rotating shaft.
Detailed Description
The present invention will be further described with reference to the following embodiments.
Example 1
As shown in fig. 1-2, this example 1 provides an apparatus for improving the extraction efficiency and quality of stem-leaf type spice plants, the apparatus comprising:
a bracket 16;
a working platform 25 arranged on the bracket 16;
a hollow leaching tank 13 mounted on a support 16;
a tubular rotating shaft 29 rotatably disposed in the leaching tank 13;
a spiral hollow flight 28 mounted on a rotating shaft 29 through a flight stay 27;
a speed reducing motor 5 in driving connection with one end of the rotating shaft 29;
and the movable sieve plate 22 is connected with the other end of the rotating shaft 29.
The inner walls of the lower part and the middle part of the leaching tank 13 are provided with a plurality of compressed air nozzles 23. A plurality of compressed air inlet pipes 24 and a plurality of compressed air safety valves 26 are arranged outside the leaching tank 13. A compressed air relief valve 26 is installed on the compressed air intake duct 24, and the compressed air nozzle 23 is connected to the compressed air intake duct 24.
The periphery of the leaching tank 13 is sleeved with a heat-insulating layer 11. A steam interlayer 12 is arranged between the outer wall of the leaching tank 13 and the heat-insulating layer 11. And a steam inlet 1, a steam safety valve 2 and a steam interlayer drain valve 15 which are communicated with the steam interlayer 12 are arranged outside the heat-insulating layer 11. The arrangement of the valves is well known to those skilled in the art and will not be described herein.
The top of the leaching tank 13 is provided with a feeding movable door 6, a solvent inlet 7 and a solvent inlet three-way valve 8. The top of the leaching tank 13 is communicated with a solvent inlet pipeline. The first end of the solvent inlet three-way valve 8 is connected with the solvent inlet 7, the second end is connected with the solvent inlet pipeline, and the third end is connected with the circulating extraction pipeline 14.
The bottom of the leaching tank 13 is provided with a discharge movable door 20, a filter 19, a leaching liquor outlet three-way valve 17 and a leaching liquor outlet 18. The bottom of the leaching tank 13 is communicated with a leaching liquor outlet pipeline. The first end of the leaching liquor outlet three-way valve 17 is connected with a leaching liquor outlet 18, the second end is connected with a leaching liquor outlet pipeline, and the third end is connected with the circulating leaching pipeline 14.
The circulating leaching pipeline 14 is provided with a circulating pump 10.
The bottom of the leaching tank 13 is communicated with a leaching liquor outlet pipeline through a filter 19.
The top of the leaching tank is provided with a leaching tank pressure gauge 4 and at least one leaching tank pressure regulating valve 3.
Wherein, the heat-insulating layer 11 is preferably made of asbestos.
The leaching tank 13 is made of a metal material having a strong thermal conductivity, such as copper or an aluminum alloy. The spiral hollow blade 28 and the blade stay 27 are preferably made of a metal material which is easily formed and has high mechanical strength. The pitch of the helical hollow flight 28 is 1200 mm.
The hollow spiral scraper 28 is composed of a plurality of arc-shaped pieces, the cross sections of the arc-shaped pieces are arc-shaped, and the concave surface faces the rotating shaft 29.
And the feeding movable door 6 and the discharging movable door 20 are both provided with food-grade sealing gaskets.
Wherein, the steam interlayer 12 is provided with a steam safety valve 2, which is convenient for adjusting the heating temperature of the leaching tank 13 according to the requirement in production.
Wherein, the compressed air inlet pipe 24 is provided with a compressed air safety valve 26, which is convenient for the raw material to be subjected to intermittent air flow injection through the compressed air nozzle 23; meanwhile, the pressure regulating valve 3 of the leaching tank and the pressure gauge 4 of the leaching tank are matched to regulate the leaching pressure in the leaching tank.
Fig. 1 is a schematic view of the overall structure of an apparatus according to embodiment 1 of the present invention. FIG. 2 is a schematic view showing the structure of a leaching tank and a spiral hollow scraper, and the direction of an arrow is a solvent flowing direction.
Example 2
This example 2 provides a method for improving the extraction efficiency and quality of stem and leaf spices, comprising:
the device for improving the leaching efficiency and quality of the stem and leaf spice plants in the embodiment 1 is used for carrying out the method, and the method comprises the following steps:
during processing, the crushed liquorice raw material (cut into sections or pieces, more than 20 meshes) enters a movable sieve plate 22 of the extraction tank 13 through a feeding movable door 6, a solvent enters the extraction tank 13 from a solvent inlet 7 and a solvent inlet three-way valve 8, and the mass of the solvent is 2 times that of the liquorice raw material;
when the driving motor 5 is started, the rotating shaft 29 is driven by the driving motor 5, the spiral hollow scraper 28 repeatedly lifts and stirs the raw material upwards, the solvent (leaching substances are dissolved in the solvent) in the leaching tank 13 is driven by the circulating pump 10 to enter the leaching tank through the leaching solution outlet three-way valve 17, the circulating leaching pipeline 14 and the solvent inlet three-way valve 8 at the bottom of the leaching tank 13, so that the raw material and the solvent in the leaching tank 13 continuously move relatively to realize the solvent circulating and stirring leaching;
meanwhile, under the regulation of a compressed air safety valve 26, compressed air enters the leaching tank 13 from a compressed air inlet pipe 24 and a compressed air nozzle 23 to carry out air flow jet stirring on the raw materials, and is matched with a leaching tank pressure regulating valve 3 and a leaching tank pressure gauge 4 to regulate the leaching pressure in the leaching tank to be 0.2Mpa, so that the raw materials in the leaching tank 13 are subjected to pressurized leaching;
steam enters a steam interlayer 12 from a steam inlet 1 above the leaching tank, and the heating temperature of the leaching tank 13 is adjusted to 55 ℃ through a steam safety valve 2 according to requirements in production, so that the raw materials in the leaching tank 13 are simultaneously heated and pressurized for leaching;
after 1.5 hours, the pressure regulating valve 3 of the leaching tank is opened until the pressure is balanced with the outside, the leaching liquor outlet 18 is opened to discharge the leaching liquor, the discharging movable door 20 is opened to discharge the leached licorice raw material, the calculated leaching rate of the obtained raw material is 90%, and the leaching liquor has less impurities and high quality.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An apparatus for improving the extraction efficiency and quality of a root-type spice plant, the apparatus comprising: the device comprises a leaching tank (13), a heat insulation layer (12) sleeved outside the leaching tank (13), a circulating leaching pipeline (14), a steam supply mechanism and a compressed air supply mechanism;
a rotating shaft (29) is axially arranged in the leaching tank (13), a spiral hollow scraper (28) arranged around the rotating shaft (29) is mounted on the rotating shaft (29), a feeding movable door (6) and a solvent inlet pipeline connected with a solvent inlet valve (8) are arranged at the top of the leaching tank (13), a discharging movable door (20) and a leaching liquor outlet pipeline connected with a leaching liquor outlet valve (17) are arranged at the bottom of the leaching tank (13), a circulating leaching pipeline (14) is connected with the solvent inlet valve (8) and the leaching liquor outlet valve (17), and a circulating pump (10) is mounted on the circulating leaching pipeline (14);
a steam supply mechanism provides a steam interlayer (12) between the leaching tank (13) and the heat-insulating layer (12);
a compressed air supply mechanism provides compressed air into the leaching tank (13).
2. The apparatus of claim 1, wherein the compressed air supply mechanism comprises: a compressed air safety valve (26), a compressed air inlet pipe (24) and a compressed air nozzle (23) which are connected with each other, wherein the compressed air nozzle (23) is arranged on the middle inner wall and the lower inner wall of the leaching tank (13).
3. An apparatus according to claim 1, characterized in that the lower end of the rotating shaft (29) is connected with a movable sieve plate (22), and the outer edge of the movable sieve plate (22) is in contact with the inner wall of the leaching tank (13).
4. An arrangement according to claim 1, characterized in that the top of the leaching tank (13) is provided with a leaching tank pressure gauge (4) and at least one leaching tank pressure regulating valve (3).
5. An apparatus according to claim 1, characterized in that the bottom of the leaching tank (13) is provided with a filter (19).
6. The device according to claim 1, characterized in that the helical hollow scraper (28) is of double helix structure around the axis of rotation (29).
7. The device according to claim 1, characterized in that the helical hollow scraper (28) is mounted on the rotating shaft (29) by means of a scraper strut (27).
8. A method of improving the efficiency and quality of extraction of a root-type spice plant, the method being performed using the apparatus of any one of claims 1-7, the method comprising the steps of:
closing a discharge movable door (20) at the bottom of the leaching tank (13) and a leaching liquor outlet valve (17);
the root-type spice plant raw material enters the leaching tank (13) through the movable feeding door (6), and the solvent enters the leaching tank (13) through the solvent inlet pipeline;
heating operation: starting a steam supply mechanism, providing a steam interlayer (12) between the leaching tank (13) and the heat insulation layer (12), and heating the leaching tank (13);
and (3) pressurizing operation: starting a compressed air supply mechanism, providing compressed air into the extraction tank (13), pressurizing the extraction tank (13), and promoting the stirring and uniform mixing of the root-type spice plant raw materials and the solvent by the airflow injection of the compressed air;
and (3) material stirring operation: opening a rotating shaft (29) which drives the spiral hollow scraper (28) to rotate, and repeatedly lifting and stirring the root-stem spice plant raw materials upwards;
solvent countercurrent circulation operation: opening a leaching liquor outlet valve (17), and under the action of the circulating pump (10), realizing countercurrent circulation of the solvent in the leaching tank (13) through the leaching liquor outlet valve (17), the circulating leaching pipeline (14) and a solvent inlet valve (8);
the leaching under four combined operations of heating, pressurizing, material stirring and solvent countercurrent circulation is realized.
9. The method of claim 8, wherein the warming and pressurizing operations are performed simultaneously or alternatively.
10. The method of claim 8, wherein the rhizome-type spice plant is mechanically crushed and sized above 20 mesh.
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| CN202011476478.3A CN112500932B (en) | 2020-12-14 | 2020-12-14 | Device and method for improving extraction efficiency and quality of rhizome spice plants |
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| CN202011476478.3A CN112500932B (en) | 2020-12-14 | 2020-12-14 | Device and method for improving extraction efficiency and quality of rhizome spice plants |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114184441A (en) * | 2021-10-19 | 2022-03-15 | 威凯检测技术有限公司 | Preparation device and method of animal-derived medical instrument biological safety evaluation experiment leaching liquor |
| CN114891566A (en) * | 2022-06-08 | 2022-08-12 | 黑龙江省龙蛙农业发展股份有限公司 | Preparation method of elsholtzia natural plant essential oil and special device thereof |
| CN117050814A (en) * | 2023-09-20 | 2023-11-14 | 东莞奇易香料有限公司 | Preparation method of spice composition |
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| CN105498281A (en) * | 2016-01-25 | 2016-04-20 | 湖北长阳培元酒厂 | Medicinal liquor extraction device |
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| CN114184441B (en) * | 2021-10-19 | 2024-04-05 | 威凯检测技术有限公司 | Preparation device and method of animal-derived medical instrument biosafety evaluation experiment leaching solution |
| CN114891566A (en) * | 2022-06-08 | 2022-08-12 | 黑龙江省龙蛙农业发展股份有限公司 | Preparation method of elsholtzia natural plant essential oil and special device thereof |
| CN114891566B (en) * | 2022-06-08 | 2024-05-17 | 杭州圣稻农业科技有限公司 | Preparation method of natural elsholtzia plant essential oil and special device thereof |
| CN117050814A (en) * | 2023-09-20 | 2023-11-14 | 东莞奇易香料有限公司 | Preparation method of spice composition |
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| CN112500932B (en) | 2024-09-24 |
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