CN117899524B - Extraction equipment and extraction method of antarctic krill oil - Google Patents
Extraction equipment and extraction method of antarctic krill oil Download PDFInfo
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- CN117899524B CN117899524B CN202410308981.XA CN202410308981A CN117899524B CN 117899524 B CN117899524 B CN 117899524B CN 202410308981 A CN202410308981 A CN 202410308981A CN 117899524 B CN117899524 B CN 117899524B
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- 238000000605 extraction Methods 0.000 title claims abstract description 77
- 229940106134 krill oil Drugs 0.000 title claims abstract description 20
- 241000239366 Euphausiacea Species 0.000 claims abstract description 96
- 239000000843 powder Substances 0.000 claims abstract description 94
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000002904 solvent Substances 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000013590 bulk material Substances 0.000 claims description 32
- 230000000149 penetrating effect Effects 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 9
- 241000239370 Euphausia superba Species 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000003960 organic solvent Substances 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims 2
- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 210000003437 trachea Anatomy 0.000 claims 1
- 238000004090 dissolution Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract description 2
- 238000005381 potential energy Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 235000012054 meals Nutrition 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- JEBFVOLFMLUKLF-IFPLVEIFSA-N Astaxanthin Natural products CC(=C/C=C/C(=C/C=C/C1=C(C)C(=O)C(O)CC1(C)C)/C)C=CC=C(/C)C=CC=C(/C)C=CC2=C(C)C(=O)C(O)CC2(C)C JEBFVOLFMLUKLF-IFPLVEIFSA-N 0.000 description 3
- 235000013793 astaxanthin Nutrition 0.000 description 3
- MQZIGYBFDRPAKN-ZWAPEEGVSA-N astaxanthin Chemical compound C([C@H](O)C(=O)C=1C)C(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)C(=O)[C@@H](O)CC1(C)C MQZIGYBFDRPAKN-ZWAPEEGVSA-N 0.000 description 3
- 229940022405 astaxanthin Drugs 0.000 description 3
- 239000001168 astaxanthin Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 150000003904 phospholipids Chemical class 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 210000004958 brain cell Anatomy 0.000 description 1
- 230000005779 cell damage Effects 0.000 description 1
- 208000037887 cell injury Diseases 0.000 description 1
- 229960001231 choline Drugs 0.000 description 1
- OEYIOHPDSNJKLS-UHFFFAOYSA-N choline Chemical compound C[N+](C)(C)CCO OEYIOHPDSNJKLS-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- CYQFCXCEBYINGO-IAGOWNOFSA-N delta1-THC Chemical compound C1=C(C)CC[C@H]2C(C)(C)OC3=CC(CCCCC)=CC(O)=C3[C@@H]21 CYQFCXCEBYINGO-IAGOWNOFSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 235000013402 health food Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 210000000653 nervous system Anatomy 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 235000020660 omega-3 fatty acid Nutrition 0.000 description 1
- 229940012843 omega-3 fatty acid Drugs 0.000 description 1
- 229940067631 phospholipid Drugs 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
Landscapes
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses extraction equipment of antarctic krill oil, and relates to the technical field of antarctic krill oil, comprising an extraction tank; a feeding pipe; a rotating structure; a bulk tray; a reset structure; a feeding bin; an elastic propping structure; and the lifting structure is used for driving the bulk tray to correspondingly move up and down when the feeding bin moves up and down. According to the invention, the feeding bin is arranged to slide on the feeding pipe, when the weight of the krill powder in the feeding bin is reduced, the lifting structure is triggered to act, the lifting structure drives the bulk cargo tray to move upwards, the longitudinal distance between the bulk cargo tray and the lower end opening part of the feeding pipe is reduced, the krill powder falling into the surface of the bulk cargo tray from the feeding pipe in unit time is reduced, the ethanol solvent in the extraction tank can fully dissolve the krill powder in the extraction tank, namely, along with the progress of the dissolving process, the feeding rate of the krill powder is gradually reduced in the middle and later stages of the extraction operation, and the dissolution of the krill powder by the ethanol solvent is more complete.
Description
Technical Field
The invention relates to the technical field of euphausia superba oil, in particular to extraction equipment and an extraction method of euphausia superba oil.
Background
The krill oil is naturally rich in EPA and DHA and simultaneously has choline, phospholipids and astaxanthin, is a good raw material for nutritional food and health food, is rich in super antioxidant astaxanthin, is rich in omega-3 fatty acid and phospholipids in addition to astaxanthin, and has the synergistic effect of the three components, thereby being beneficial to repairing the heart brain cell injury caused by heart peduncles and brain peduncles and improving the brain memory and nervous system.
Krill oil extraction generally requires heating, drying and crushing the krill caught by the shrimp into krill powder, dissolving and soaking the krill powder by a corresponding solvent (generally ethanol), and then filtering the solvent to realize extraction treatment of the krill oil.
As known, the dissolution efficiency is related to the total amount of the solvent and the solute, and when the total amount of the solvent is greater than the total amount of the solute, the dissolution rate of the solute is faster, and vice versa, so in the prior art, when the solvent is used for dissolving the krill meal as the solute, the krill meal is directly and completely put into the extraction equipment during extraction, and at the moment, the percentage of the total amount of the solvent to the total amount of the solute is small, so that the dissolution efficiency of the krill meal is lower, particularly in the middle and later stages of the extraction operation, the dissolution of the solvent to the solute is slower and slower, and the extraction efficiency of the krill meal is lower as a whole.
Disclosure of Invention
The invention aims to provide extraction equipment and an extraction method for antarctic krill oil, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: an extraction apparatus for antarctic krill oil, comprising:
An extraction tank;
The feeding pipe is coaxially and vertically arranged in the extraction tank in a penetrating manner, and a rotating structure for driving the feeding pipe to rotate is arranged on the extraction tank;
the bulk material tray is arranged below the feeding pipe, and a reset structure is arranged between the feeding pipe and the bulk material tray;
the feeding bin is sleeved at one end of the feeding pipe penetrating out of the extraction tank and can slide freely up and down, an elastic propping structure for driving the feeding bin to move upwards is arranged on the extraction tank, and a through groove is formed in one end of the feeding pipe penetrating into the feeding bin;
and the lifting structure is used for driving the bulk tray to correspondingly move up and down when the feeding bin moves up and down.
Further, the rotating structure includes:
The two support columns are vertically fixedly connected to the extraction tank, and the upper ends of the two support columns are fixedly connected with a mounting plate together;
The stepping motor is arranged on the mounting plate, a connecting shaft is connected with an output shaft of the stepping motor in a driving mode, and the lower end of the connecting shaft is coaxially and fixedly connected to the top of the feeding pipe.
Further, the connecting shaft is fixedly connected with a plurality of stirring sheets.
Further, the elastic abutment structure includes:
the two fixing plates are fixedly connected to two sides of the feeding bin respectively;
The two springs are respectively sleeved on the two supporting columns, and the two ends of the elastic direction of the springs respectively elastically abut against the surfaces of the fixed plate and the extracting tank.
Further, the reset structure includes:
The two first ear plates are fixedly connected to the lower end of the feeding pipe;
the two second lug plates are fixedly connected to two opposite sides of the bulk cargo tray, and the two first lug plates correspond to the two second lug plates;
The two guide posts are respectively and vertically fixedly connected to the two second lug plates, and the upper ends of the guide posts penetrate out of the first lug plates and slide up and down freely;
The two tension springs are respectively sleeved on the two guide posts, and two ends of the tension springs in the elastic direction are respectively fixedly connected with the first lug plate and the second lug plate.
Further, the lifting structure includes:
the rotating part is sleeved at the lower end of the feeding pipe;
The two swing arms are hinged to the periphery of the rotating part along the axial array of the rotating part, one end, far away from the rotating part, of each swing arm is connected with a telescopic unit, and a counterweight ball is arranged on each telescopic unit;
The connecting rod is fixedly connected with one end of the swing arm, a gap-shaped clearance groove is formed in the other end of the connecting rod, a sliding pin is arranged at the upper end of the guide column in a penetrating mode, the guide column freely penetrates out of the clearance groove, and a kidney-shaped hole for the sliding pin to be inserted is formed in the connecting rod;
And the driving unit is used for triggering the telescopic unit to act when the feeding bin moves up and down so as to adjust the distance between the counterweight ball and the rotating part.
Further, the telescopic unit comprises a fixed cylinder fixedly connected with the swing arm, a freely sliding telescopic column is coaxially arranged on the fixed cylinder in a penetrating mode, and one end of the telescopic column, penetrating out of the fixed cylinder, is fixedly connected with the counterweight ball.
Further, the driving unit includes:
the rotating ring is rotatably sleeved at the lower end part of the feeding bin;
The two pull rods are respectively and vertically fixedly connected to the lower end face of the rotating ring, the lower ends of the pull rods penetrate through the rotating part and slide up and down freely, and the top of the extraction tank is provided with an avoidance port for the pull rods to pass through freely in an axial rotation mode around the feeding bin;
The annular plugs are fixedly connected to one ends of the two pull rods penetrating into the rotating parts, the rotating parts are hollow, the annular plugs are coaxially clamped in the rotating parts and slide up and down freely, and a first air storage cavity is formed between the lower end surfaces of the annular plugs and the inner cavity wall of the rotating parts in a surrounding mode;
the sliding plug is coaxially and fixedly connected to one end of the telescopic column penetrating into the fixed cylinder, one end face of the sliding plug, which is far away from the counterweight ball, and the inner wall of the fixed cylinder enclose a second gas storage cavity, and the first gas storage cavity and the second gas storage cavity are connected through a gas pipe.
Further, the bulk cargo tray is conical with a narrow upper part and a wide lower part, and a plurality of spiral protruding parts are arranged on the conical surface of the bulk cargo tray.
An extraction method of antarctic krill oil, which uses the extraction equipment as described above, comprises the following steps:
Taking and weighing the screened krill powder with the water content of 10%, putting the weighed and quantified krill powder into a feeding bin, putting an ethanol solution with the weight 3 times of the weight of the krill powder and the concentration of 95% into an extraction tank, and arranging a heating device in the extraction tank, wherein the heating device heats the interior of the extraction tank, the heating temperature is 30-50 ℃, and the lifting structure overcomes the pulling force of a reset structure on a bulk tray so as to drive the bulk tray to move downwards, so that the longitudinal spacing size between the bulk tray and the lower port part of a feeding pipe is maximum;
Starting a rotating structure, driving the feeding pipe to rotate, enabling the krill powder in the feeding bin to enter the feeding pipe from a through groove of the feeding pipe, then falling onto a bulk material tray from the lower port part of the feeding pipe, and uniformly scattering the krill powder into ethanol solvent liquid stored in the extraction tank along with the rotation of the bulk material tray, wherein the ethanol solvent is used for dissolving and mixing the krill powder;
Along with the krill powder in the feeding bin gradually being fed into the ethanol solvent, the total weight of the feeding bin and the krill powder remained in the feeding bin is reduced, at the moment, the acting force of the lifting structure for driving the bulk tray to move downwards is gradually reduced, so that the bulk tray gradually moves towards the mouth of the feeding pipe under the action of the pulling force of the resetting structure, the longitudinal distance between the lower end mouth of the feeding pipe and the bulk tray is reduced, the amount of the krill powder falling into the bulk tray is reduced in unit time, and the krill powder in the extraction tank is fully dissolved by the ethanol solvent;
Collecting the dissolved and combined krill powder extracting solution through a discharge hole of an extracting tank, evaporating at 50 ℃ and under the vacuum degree of-0.08 MPa, removing the solvent in the krill powder extracting solution, obtaining euphausia superba oil, and introducing nitrogen at normal temperature to remove the organic solvent in the euphausia superba oil, thus obtaining the euphausia superba oil.
Compared with the prior art, the invention has the beneficial effects that:
According to the invention, the feeding bin is arranged to slide on the feeding pipe, when the weight of the krill powder in the feeding bin is reduced, the lifting structure is triggered to act, and the lifting structure drives the bulk tray to move upwards, so that the longitudinal distance between the bulk tray and the lower end opening part of the feeding pipe is reduced, the krill powder falling into the surface of the bulk tray from the feeding pipe is reduced in unit time, the ethanol solvent in the extraction tank can fully dissolve the krill powder in the extraction tank, namely, along with the progress of the dissolving process, the feeding rate of the krill powder is gradually reduced in the middle and later stages of the extraction operation, and the dissolution of the krill powder by the ethanol solvent is more complete;
when the feeding pipe is arranged to rotate, the counterweight ball swings towards the direction far away from the feeding pipe under the action of centrifugal force, so that the connecting rod swings downwards, the sliding pin slides in the kidney-shaped hole, and the guide post is driven to drive the bulk material tray to move downwards, so that the bulk material tray is driven to move up and down through the rotation of the feeding pipe, and the structure is simple;
according to the invention, when the feeding bin is arranged to move up and down, the pull rod drives the annular plug to slide in the inner cavity of the rotating part, the air in the second air storage cavity of the fixed cylinder enters the first air storage cavity by utilizing the communicating vessel principle, the sliding plug can be correspondingly driven to slide in the fixed cylinder, the space size between the counterweight ball and the fixed cylinder is changed, the centrifugal force applied to the counterweight ball is also changed immediately, and the reset structure has upward tension on the bulk tray, so that the bulk tray can longitudinally displace, the structure is simple and ingenious, an automatic sensor is not required to be arranged, and the cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an extraction device for antarctic krill oil in the present invention;
FIG. 2 is a schematic cross-sectional view of the partial structure of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1 at an elevation angle;
FIG. 4 is an enlarged schematic view of a partial structure at A in FIG. 3;
FIG. 5 is an enlarged schematic view of a partial structure at B in FIG. 3;
FIG. 6 is a schematic view of the structure of the swing arm, the fixed barrel and the connecting rod of the present invention after assembly;
Fig. 7 is a schematic cross-sectional view of the structure of fig. 6.
In the drawings, the reference numerals are explained as follows: 1. a discharge port; 2. an extraction tank; 3. a spring; 4. a fixing plate; 5. a support column; 6. a stepping motor; 7. a mounting plate; 8. a connecting shaft; 9. a feeding bin; 10. stirring sheets; 11. a feeding pipe; 12. a swing arm; 13. a tension spring; 14. an air pipe; 15. a bulk tray; 16. a spiral protrusion; 17. a second ear plate; 18. a first ear plate; 19. a connecting rod; 20. a fixed cylinder; 21. a rotating part; 22. a pull rod; 23. a guide post; 24. a rotating ring; 25. a through groove; 26. a sliding pin; 27. waist-shaped holes; 28. a weight ball; 29. a telescopic column; 30. a sliding plug; 31. a second air storage chamber; 32. an annular plug; 33. a first air storage chamber; 34. and a void-avoiding groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the present invention provides an embodiment: the antarctic krill oil extracting device comprises an extracting tank 2, wherein two support columns 5 are vertically welded on the upper surface of the extracting tank 2, a mounting plate 7 is welded at the upper ends of the two support columns 5 in a common horizontal mode, a connecting shaft 8 is vertically and rotatably connected to the mounting plate 7, the connecting shaft 8 is driven to rotate by a stepping motor 6 arranged on the mounting plate 7, a feeding pipe 11 is coaxially welded at the lower end of the connecting shaft 8, the lower end of the feeding pipe 11 extends into the extracting tank 2, in addition, a support plate (not shown in the drawing) is welded on the inner wall of the extracting tank 2, a bearing is embedded on the support plate, the lower end of the feeding pipe 11 is inserted on the bearing, the feeding pipe 11 is further supported by the bearing, a feeding bin 9 is coaxially sleeved at the upper end of the feeding pipe 11, the top of the feeding bin 9 is open, the outer diameter of the lower end of the feeding bin is far smaller than the outer diameter of the upper end of the feeding bin, the feeding bin 9 can freely slide up and down on the feeding pipe 11, two fixing plates 4 are symmetrically welded on the periphery of the feeding bin 9 along the axial direction of the feeding bin, the fixing plate 4 is positioned above the extracting tank 2, two elastic force grooves 25 are respectively formed by the two support columns 5, and two elastic force grooves 25 are respectively arranged at the two ends of the supporting columns 5, and the elastic force grooves 25 are respectively arranged in the supporting columns 3 and the two ends of the feeding bin are in the direction of the elastic force grooves are respectively and are in the directions and are respectively opened;
The method comprises the steps that a worker takes and weighs the screened krill powder with the water content of 10%, the weighed and quantified krill powder is fully put into a feeding bin 9, the krill powder enters a feeding pipe 11 from a through groove 25 and falls into an extraction tank 2 from the feeding pipe 11, an ethanol solvent used for extraction is stored in the extraction tank 2, the weight of the ethanol solvent is 3 times that of the krill powder, the concentration is 95%, in an initial state, the krill powder is fully put into the feeding bin 9, at the moment, the weight of the krill powder in the feeding bin 9 is the largest, a spring 3 is under the action of the gravity of the feeding bin 9 and the krill powder to be in a compression state, so that elastic potential energy is accumulated, a plurality of stirring pieces 10 are welded on a connecting shaft 8, so that when a stepping motor 6 rotates, the stirring pieces 10 can stir the krill powder in the feeding bin 9, the krill powder can smoothly enter the through groove 25, the weight of the krill powder in the feeding bin 9 is reduced along with the falling into the feeding pipe 11 from the through groove 25, the elastic potential energy of the spring 3 is gradually released, and meanwhile, the krill powder in the feeding bin 9 is gradually moved upwards;
The lower end of the feeding pipe 11 is symmetrically welded with two first lug plates 18 along the axial direction of the feeding pipe 11, a bulk material tray 15 is arranged below the feeding pipe 11, the bulk material tray 15 is in a conical shape with a narrow upper part and a wide lower part, a plurality of spiral protruding parts 16 are arranged on the conical surface of the bulk material tray 15, two second lug plates 17 are respectively welded on two opposite sides of the bulk material tray 15, the two first lug plates 18 correspond to the two second lug plates 17, a guide post 23 is vertically welded on the two second lug plates 17, the upper ends of the guide posts 23 penetrate out of the first lug plates 18 and slide freely up and down, tension springs 13 are respectively sleeved on the two guide posts 23, two ends of the tension springs 13 in the elastic direction are respectively welded on the first lug plates 18 and the second lug plates 17, and when the feeding bin 9 is in an idle state, the bulk material tray 15 can move upwards and prop against the mouth part of the lower end of the feeding pipe 11 through the tension of the tension springs 13;
after krill powder falls into the feeding pipe 11 from the through groove 25, the krill powder falls into the surface of the bulk material tray 15 from the lower port part of the feeding pipe 11, the stepping motor 6 drives the connecting shaft 8 to rotate, and then the feeding pipe 11 can be driven to rotate, so that the bulk material tray 15 synchronously rotates, the feeding bin 9 does not rotate along with the feeding pipe 11, when the krill powder falls onto the bulk material tray 15, along with the rotation of the bulk material tray 15, the krill powder is thrown out along a channel surrounded by two adjacent spiral protruding parts 16 under the action of centrifugal force, so that the krill powder is uniformly thrown into an ethanol solvent;
Since the total amount of the ethanol solvent in the extraction tank 2 is unchanged, the total amount of the krill powder input is continuously increased along with the extraction, so that the unit time input amount of the following krill powder needs to be gradually reduced in order to accelerate the dissolution of the krill powder in the middle and later stages of the extraction operation, so that the ethanol solvent can fully dissolve the continuously input krill powder, in the embodiment, the lower end of the feeding pipe 11 is fixedly sleeved with a rotating part 21, the periphery of the rotating part 21 is hinged with two swinging arms 12 along the axial array thereof, the swinging arms 12 are welded with a fixed cylinder 20, the fixed cylinder 20 is coaxially provided with a freely sliding telescopic column 29 in a penetrating manner, one end of the telescopic column 29 penetrating out of the fixed cylinder 20 is welded with a counterweight ball 28, the swinging arms 12 are welded with a connecting rod 19, the length direction of the connecting rod 19 forms an included angle with the axial direction of the fixed cylinder 20, the other end of the connecting rod 19 is provided with a gap-shaped empty slot 34, the upper end of the guide column 23 is provided with a sliding pin 26, the guide post 23 freely passes through the clearance groove 34, the connecting rod 19 is provided with a waist-shaped hole 27 for inserting the sliding pin 26, the lower end part of the feeding bin 9 is rotatably sleeved with the rotating ring 24, the lower end surface of the rotating ring 24 is vertically welded with two pull rods 22, the lower ends of the pull rods 22 penetrate into the rotating part 21 and freely slide up and down, the top of the extracting tank 2 is provided with a avoiding opening for the pull rods 22 to axially rotate around the feeding bin 9 to pass through, one end of the two pull rods 22 penetrating into the rotating part 21 is connected with an annular plug 32, the rotating part 21 is hollow, the annular plug 32 is coaxially clamped in the rotating part 21 and freely slide up and down, a first air storage cavity 33 is enclosed between the lower end surface of the annular plug 32 and the inner cavity wall of the rotating part 21, one end of the telescopic column 29 penetrating into the fixed cylinder 20 is coaxially connected with a sliding plug 30, one end surface of the sliding plug 30 far away from the counterweight ball 28 and the inner wall of the fixed cylinder 20 enclose a second air storage cavity 31, the first air storage cavity 33 and the second air storage cavity 31 are connected through an air pipe 14, and a communicating vessel is formed between the first air storage cavity 33 and the second air storage cavity 31;
When the krill powder is fully thrown into the feeding bin 9, the tension spring 13 pulls the second lug plate 17, so that the second lug plate 17 drives the guide post 23 to move upwards, the sliding pin 26 slides upwards in the kidney-shaped hole 27, the swinging arm 12 is driven to swing upwards along the hinge joint with the rotating part 21, the swinging arm 12 is in an inclined upwards state, namely, the counterweight ball 28 is positioned above the end part of the swinging arm 12, the bulk cargo tray 15 is propped against the mouth part of the lower end of the feeding tube 11, the feeding tube 11 drives the swinging arm 12 to rotate when rotating, the counterweight ball 28 rotates around the axial direction of the feeding tube 11, so that the counterweight ball 28 is subjected to centrifugal force, and swings towards the outer side direction of the feeding tube 11, the weight ball 28 swings downwards while rotating around the circumference of the feeding pipe 11 (the maximum amplitude of the downward swing of the weight ball 28 is that the fixed cylinder 20 is in a horizontal state), so that the sliding pin 26 slides in the kidney-shaped hole 27, the driving guide post 23 moves downwards through the relative sliding of the sliding pin 26 and the inner wall of the kidney-shaped hole 27, and the bulk cargo tray 15 is driven to move downwards, so that the longitudinal distance between the bulk cargo tray 15 and the lower end part of the feeding pipe 11 is larger, meanwhile, the tension spring 13 is in an elongated state, elastic potential energy is accumulated, at the moment, krill powder in the feeding bin 9 can quickly enter the extracting tank 2 in the initial stage of extracting operation, and the total solvent is far larger than the total krill powder, so that the dissolving rate is larger.
The total weight of the feeding bin 9 and the krill powder stored therein is larger in the initial stage of the extraction operation, so that the annular plug 32 does not generate larger displacement in the initial stage of the extraction operation, the inner space of the first air storage cavity 33 does not change greatly, the swinging arm 12 does not slide in the fixed cylinder 20, the krill powder in the feeding bin 9 gradually decreases to a certain extent along with the extraction, therefore, the feeding bin 9 gradually moves upwards under the driving of the elastic potential energy of the spring 3, when the feeding bin 9 moves upwards, the rotating ring 24 is driven to move upwards, the pull rod 22 pulls the annular plug 32 to move upwards in the rotating part 21, the space of the first air storage cavity 33 is increased, the air in the second air storage cavity 31 (the cavity communicated with the air pipe 14) enters the first air storage cavity 33 from the air pipe 14 through the communication of the air pipe 14, in this way, the sliding plug 30 moves in the direction away from the counterweight ball 28 in the second air storage cavity 31, so that the distance between the counterweight ball 28 and the fixed cylinder 20 is reduced, and because the rotating speed of the stepping motor 6 is unchanged, when the counterweight ball 28 moves in the direction of the fixed cylinder 20, the centrifugal force exerted by the counterweight ball 28 is reduced, and under the action of the tension force of the tension spring 13 on the second lug plate 17, the sliding pin 26 slides upwards in the kidney-shaped hole 27, so that the connecting rod 19 drives the swing arm 12 to swing upwards, so that the bulk material tray 15 moves upwards for a certain stroke, so that the longitudinal distance between the bulk material tray 15 and the lower end opening of the feeding pipe 11 is reduced, so that the krill powder falling on the surface of the bulk material tray 15 in unit time of the feeding pipe 11 is reduced, further, the input amount per unit time of the krill powder is smaller and smaller in the middle and later period of the extraction operation is realized, so that the dissolution mixing degree of the ethanol solvent and the krill powder is relatively the prior art, the krill powder is fully added into the ethanol solvent to be dissolved and mixed to a higher degree.
The working principle of the invention is as follows: the method comprises the steps that a worker takes and weighs the screened krill powder with the water content of 10%, the weighed and quantified krill powder is fully put into a feeding bin 9, the krill powder enters a feeding pipe 11 from a through groove 25 and falls into an extraction tank 2 from the feeding pipe 11, an ethanol solvent used for extraction is stored in the extraction tank 2, the weight of the ethanol solvent is 3 times that of the krill powder, the concentration is 95%, in an initial state, the krill powder is fully put into the feeding bin 9, at the moment, the weight of the krill powder in the feeding bin 9 is the largest, a spring 3 is under the action of the gravity of the feeding bin 9 and the krill powder to be in a compressed state, so that elastic potential energy is accumulated, in addition, a plurality of stirring pieces 10 are welded on a connecting shaft 8, so that when a stepping motor 6 rotates, the stirring pieces 10 can stir the krill powder in the feeding bin 9, the krill powder can smoothly enter the through groove 25, and fall into a tray 15 from a lower port of the feeding pipe 11 after the krill powder falls into the feeding pipe 11 from the through groove 25;
The stepper motor 6 drives the connecting shaft 8 to rotate, so that the feeding pipe 11 can be driven to rotate, the bulk material tray 15 rotates synchronously, the feeding bin 9 does not rotate along with the feeding pipe 11, when krill powder falls onto the bulk material tray 15, the krill powder is thrown out along a channel surrounded by two adjacent spiral protruding parts 16 under the action of centrifugal force along with the rotation of the bulk material tray 15, and the krill powder is uniformly thrown into an ethanol solvent;
The total weight of the feeding bin 9 and the krill powder stored therein is larger in the initial stage of the extraction operation, so that the annular plug 32 does not generate larger displacement in the initial stage of the extraction operation, the inner space of the first air storage cavity 33 does not change greatly, the swing arm 12 does not slide in the fixed cylinder 20, the krill powder in the feeding bin 9 gradually decreases to a certain extent along with the extraction, therefore, the feeding bin 9 gradually moves upwards under the driving of the elastic potential energy of the spring 3, when the feeding bin 9 moves upwards, the rotating ring 24 is driven to move upwards, the annular plug 32 is pulled by the pull rod 22 to move upwards in the rotating part 21, the space of the first air storage cavity 33 is increased, the space of the first air storage cavity 33 is communicated through the air pipe 14, the air in the second air storage cavity 31 (the cavity penetrating one side of the air pipe 14) enters the first air storage cavity 33 from the air pipe 14, so that the sliding plug 30 moves in the direction away from the counterweight ball 28 in the second air storage cavity 31, the distance between the counterweight ball 28 and the fixed cylinder 20 is reduced, and the rotating speed of the stepping motor 6 is unchanged, so that when the counterweight ball 28 moves in the direction of the fixed cylinder 20, the centrifugal force born by the counterweight ball 28 is reduced, and under the action of the tension force of the tension spring 13 on the second lug plate 17, the sliding pin 26 slides upwards in the kidney-shaped hole 27, so that the connecting rod 19 drives the swing arm 12 to swing upwards, and thus the bulk material disc 15 moves upwards for a certain stroke, and the longitudinal distance between the bulk material disc 15 and the lower port part of the feeding pipe 11 is reduced;
the krill powder falling onto the surface of the bulk tray 15 in unit time of the feeding pipe 11 is reduced, the krill powder is fed into the bulk tray in the middle and later stages of the extraction operation in the extraction process, the feeding amount of the krill powder in unit time is smaller and smaller, and the dissolving and mixing degree of the ethanol solvent and the krill powder is higher than that of the prior art.
It should be noted that, the magnitude of the centrifugal force applied to the weight ball 28 is related to the linear velocity of the weight ball 28 in a positive proportion, that is, the greater the linear velocity of the weight ball 28, the greater the centrifugal force applied to the weight ball 28, the rotation speed of the stepping motor 6 in this embodiment is kept constant and is not greater than 100-120rpm, so that the rotation speed of the connecting shaft 8 in this embodiment is not too great, so that the linear velocity of the weight ball 28 is the smallest in the full load condition of the feeding bin 9, at this time, the weight ball 28 forms an included angle with the horizontal plane in the axial direction of the fixed cylinder 20, and as the krill powder in the feeding bin 9 continuously decreases, the weight ball 28 moves in a direction away from the fixed cylinder 20, so that the linear velocity of the weight ball 28 increases, and thus the centrifugal force increases, the longitudinal component of the centrifugal force drives the weight ball 28 to move downwards, and the sliding pin 26 slides in the kidney-shaped hole 27, and then drives the bulk disc 15 to move upwards, so that when the storage amount of krill powder in the feeding bin 9 decreases in this embodiment, the bulk disc 15 continuously moves upwards, so that the amount of krill powder in the feeding bin 15 falls into the vertical position of the fixed cylinder 20, and the bulk powder tube 15 falls into the vertical position from the lower end opening position of the feeding tube 15, and the end of the bulk powder tube 15 does not drop into the initial hopper 15, and the space is not dropped into the space when the space of the bulk powder tube 15;
The lower side of the extraction tank 2 is provided with a discharge port 1, a delivery pump is arranged on the discharge port 1, when the delivery pump is started, the mixed solution of the dissolved ethanol solvent and the krill powder in the extraction tank 2 is delivered to a filtering device, the filtering device filters the mixed solution to extract krill oil, then the dissolved and combined krill powder extract is collected through the discharge port 1 of the extraction tank 2 and evaporated at 50 ℃ and the vacuum degree of-0.08 MPa, the solvent in the krill powder extract is removed, antarctic krill oil is obtained, and nitrogen is introduced at normal temperature to remove the organic solvent in the krill oil, so as to finally obtain antarctic krill oil.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An extraction apparatus for antarctic krill oil, comprising:
The extraction tank (2), the heating device is arranged in the extraction tank (2), and the discharging port (1) is arranged at the lower side of the extraction tank (2);
the feeding pipe (11) is coaxially and vertically arranged in a penetrating mode on the extracting tank (2), and a rotating structure for driving the feeding pipe (11) to rotate is arranged on the extracting tank (2);
The bulk material tray (15), the bulk material tray (15) is arranged below the feeding pipe (11), and a reset structure is arranged between the feeding pipe (11) and the bulk material tray (15);
The feeding bin (9), the feeding bin (9) is sleeved at one end of the feeding pipe (11) penetrating out of the extraction tank (2) and slides freely up and down, an elastic propping structure for driving the feeding bin (9) to move upwards is arranged on the extraction tank (2), and a through groove (25) is formed in one end of the feeding pipe (11) penetrating into the feeding bin (9);
the lifting structure is used for driving the bulk cargo tray (15) to correspondingly move up and down when the feeding bin (9) moves up and down;
the reset structure comprises:
the two first ear plates (18) are fixedly connected to the lower end of the feeding pipe (11);
the two second lug plates (17), the two second lug plates (17) are fixedly connected to two opposite sides of the bulk cargo tray (15), and the two first lug plates (18) correspond to the two second lug plates (17);
the two guide posts (23) are vertically fixedly connected to the two second lug plates (17) respectively, and the upper ends of the guide posts (23) penetrate out of the first lug plates (18) and slide up and down freely;
the two tension springs (13) are respectively sleeved on the two guide posts (23), and two ends of the tension springs (13) in the elastic direction are respectively fixedly connected with the first lug plate (18) and the second lug plate (17);
the lifting structure comprises:
the rotating part (21), the said rotating part (21) is cup jointed to the said lower end of the said feeding tube (11);
The two swing arms (12) are hinged to the periphery of the rotating part (21) along the axial array of the rotating part (21), one end, far away from the rotating part (21), of each swing arm (12) is connected with a telescopic unit, and a counterweight ball (28) is arranged on each telescopic unit;
The connecting rod (19), one end of the connecting rod (19) is fixedly connected with the swing arm (12), a gap-shaped clearance groove (34) is formed in the other end of the connecting rod, a sliding pin (26) is arranged at the upper end of the guide column (23) in a penetrating mode, the guide column (23) freely penetrates out of the clearance groove (34), and a kidney-shaped hole (27) for the sliding pin (26) to be inserted is formed in the connecting rod (19);
The driving unit is used for triggering the telescopic unit to act when the feeding bin (9) moves up and down so as to adjust the distance between the counterweight ball (28) and the rotating part (21);
the rotating structure includes:
The two support columns (5), the two support columns (5) are vertically fixedly connected to the extraction tank (2), and the upper ends of the two support columns (5) are fixedly connected with a mounting plate (7) together;
the stepping motor (6) is arranged on the upper part of the mounting plate (7), a connecting shaft (8) is connected with an output shaft of the stepping motor (6) in a driving way, and the lower end of the connecting shaft (8) is coaxially and fixedly connected to the top of the feeding pipe (11);
the elastic abutment structure comprises:
the two fixing plates (4) are fixedly connected to two sides of the feeding bin (9) respectively;
The two springs (3) are respectively sleeved on the two supporting columns (5), and two ends of the spring (3) in the elastic direction are respectively elastically propped against the surfaces of the fixed plate (4) and the extracting tank (2);
The telescopic unit comprises a fixed cylinder (20) fixedly connected to the swing arm (12), a freely sliding telescopic column (29) is coaxially arranged on the fixed cylinder (20) in a penetrating manner, and one end of the telescopic column (29) penetrating out of the fixed cylinder (20) is fixedly connected with the counterweight ball (28);
the driving unit includes:
the rotating ring (24) is rotatably sleeved at the lower end part of the feeding bin (9);
The two pull rods (22) are respectively and vertically fixedly connected to the lower end face of the rotating ring (24), the lower ends of the pull rods (22) penetrate through the rotating part (21) and slide up and down freely, and an avoidance port for the pull rods (22) to pass through freely in an axial rotation mode around the feeding bin (9) is formed in the top of the extraction tank (2);
The annular plugs (32) are fixedly connected to one ends of the two pull rods (22) penetrating into the rotating parts (21), the rotating parts (21) are hollow, the annular plugs (32) are coaxially clamped in the rotating parts (21) and slide up and down freely, and a first air storage cavity (33) is formed between the lower end surfaces of the annular plugs (32) and the inner cavity wall of the rotating parts (21) in a surrounding mode;
The sliding plug (30), the coaxial rigid coupling of sliding plug (30) in telescopic column (29) penetrate on the one end in fixed section of thick bamboo (20), just sliding plug (30) keep away from an end face of counter weight ball (28) with fixed section of thick bamboo (20) inner wall encloses into second gas storage chamber (31), first gas storage chamber (33) with connect through trachea (14) between second gas storage chamber (31).
2. The extraction device of antarctic krill oil according to claim 1, wherein the connecting shaft (8) is fixedly connected with a plurality of stirring blades (10).
3. An extraction apparatus of antarctic krill oil according to claim 1, characterized in that the bulk tray (15) is conical with a narrow upper and a wide lower part and that the conical surface is provided with a plurality of spiral protrusions (16).
4. A method for extracting antarctic krill oil, using the extraction apparatus of claim 1, comprising:
Taking and weighing the screened krill powder with the water content of 10%, putting the weighed and quantified krill powder into a feeding bin (9), putting an ethanol solution with the weight 3 times of the weight of the krill powder and the concentration of 95% into an extraction tank (2), arranging a heating device in the extraction tank (2), heating the interior of the extraction tank (2) by the heating device at the temperature of 30-50 ℃, and enabling a lifting structure to overcome the tension of a reset structure on a bulk tray (15) so as to drive the bulk tray (15) to move downwards, so that the longitudinal distance between the bulk tray (15) and the lower end opening part of a feeding pipe (11) is the largest;
Starting a rotating structure, driving the feeding pipe (11) to rotate, enabling the krill powder in the feeding bin (9) to enter the feeding pipe (11) from the through groove (25) of the feeding pipe (11), then falling onto the bulk material tray (15) from the lower port of the feeding pipe (11), and uniformly scattering the krill powder in the ethanol solvent liquid stored in the extraction tank (2) along with the rotation of the bulk material tray (15), wherein the ethanol solvent is used for dissolving and mixing the krill powder;
Along with the krill powder in the feeding bin (9) is gradually put into the ethanol solvent, the total weight of the feeding bin (9) and the krill powder remained in the feeding bin is reduced, the acting force of the lifting structure for driving the bulk material tray (15) to move downwards is gradually reduced, so that the bulk material tray (15) gradually moves towards the opening of the feeding pipe (11) under the action of the pulling force of the reset structure, the longitudinal distance between the lower end opening of the feeding pipe (11) and the bulk material tray (15) is reduced, the krill powder amount of the krill powder falling into the bulk material tray (15) is reduced in unit time, and the krill powder in the extraction tank (2) is fully dissolved by the ethanol solvent;
Collecting the dissolved and combined krill powder extract through a discharge port (1) of an extraction tank (2), evaporating at 50 ℃ and vacuum degree-0.08 MPa, removing the solvent in the krill powder extract, obtaining euphausia superba oil, and introducing nitrogen at normal temperature to remove the organic solvent in the euphausia superba oil, thus obtaining the euphausia superba oil.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN213388556U (en) * | 2020-09-10 | 2021-06-08 | 逢时(青岛)海洋科技有限公司 | Euphausia superba oil concentration equipment |
| CN218530112U (en) * | 2022-06-27 | 2023-02-28 | 广西壮族自治区农业科学院 | Separator in sphenoides extract extraction technology |
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| US9421477B2 (en) * | 2013-08-12 | 2016-08-23 | Green Extraction Technologies | Biomass fractionation and extraction apparatus |
| CN109054989A (en) * | 2018-08-27 | 2018-12-21 | 浙江工业大学 | A kind of extracting process of thermolabile Antarctic krill grease |
| CN216259217U (en) * | 2021-11-01 | 2022-04-12 | 武汉斯佳特科技有限公司 | Biological medicine draws equipment |
| KR102585301B1 (en) * | 2022-01-05 | 2023-10-06 | 농업회사법인 문경미소 주식회사 | Fruit of the Max-imowiczia chinensis extract fermented liquid manufacturing apparatus and method for manufacturing Fruit of the Max-imowiczia chinensis extract fermented liquid using the same |
| CN217221286U (en) * | 2022-05-13 | 2022-08-19 | 长沙飞宇生物肥业有限公司 | Water-soluble fertilizer high efficiency mixing arrangement |
| CN116286167A (en) * | 2023-05-22 | 2023-06-23 | 山东康境海洋生物工程有限公司 | Refining equipment for krill oil with high phospholipid content and processing method thereof |
| CN117323689A (en) * | 2023-10-08 | 2024-01-02 | 河北普农文化传播有限公司 | Constant temperature type medicine extraction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN213388556U (en) * | 2020-09-10 | 2021-06-08 | 逢时(青岛)海洋科技有限公司 | Euphausia superba oil concentration equipment |
| CN218530112U (en) * | 2022-06-27 | 2023-02-28 | 广西壮族自治区农业科学院 | Separator in sphenoides extract extraction technology |
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