An evaporation and purification device for fish oil processing and its usage method

Abstract

The present invention relates to the technical field of marine industries, and discloses an evaporation and purification device for fish oil processing and its usage method. The evaporation and purification device for fish oil processing includes a base, a distillation mechanism, and a condensation mechanism. The distillation mechanism includes a distillation kettle arranged on the base, and a liquid inlet pipe is arranged on the distillation kettle. The condensation mechanism includes a cooling tower arranged on the base, and a spiral condensation pipe is arranged inside the cooling tower. After injecting fish oil into the distillation kettle through the liquid inlet pipe, distillation is carried out to form fish oil vapor, and the fish oil vapor is then injected into the condensation pipe for condensation to obtain purified fish oil. For the evaporation and purification device for fish oil processing and its usage method, a plurality of circulating and moving liquid receiving trays are installed in the distillation kettle, which can not only shovel the substances deposited on the bottom wall and remove the suspended substances on the liquid surface, but also make the fish oil continuously drip in the distillation kettle to increase the contact between the gas and liquid phases, so as to improve the evaporation and purification efficiency of fish oil.

Description

Technical Field

[0001] The invention relates to the technical field of marine industry, and in particular to an evaporation purification device for fish oil processing and a use method thereof. Background Art

[0002] Fish oil is one of the products in the marine industry. It is oil extracted from fatty fish and has certain health functions. In the processing of fish oil, after high-temperature steaming, extraction and filtration, the fish oil still contains a lot of impurities, so it is necessary to evaporation and purification to obtain a relatively pure fish oil product.

[0003] The evaporation and purification process of fish oil uses the principle of distillation to allow components with different boiling points in the fish oil to precipitate successively, and then collect some gaseous products corresponding to the pure fish oil for condensation to obtain the purified fish oil.

[0004] Since the composition of fish oil is relatively complex and there are many viscous components that are difficult to separate in fish oil, some auxiliary equipment is needed to accelerate the distillation when heating the fish oil. In the prior art, the distillation kettle used for evaporation purification is usually only equipped with a simple stirring device to accelerate the distillation, and the distillation efficiency still needs to be further improved.

[0005] Therefore, in order to solve the above technical problems existing in the prior art, an evaporation purification device for fish oil processing and a method for using the same are proposed. Summary of the invention

[0006] The present invention provides an evaporation and purification device for fish oil processing and a method for using the same. The device is provided with a plurality of circulating liquid receiving trays installed in a distillation kettle, which can not only shovel sedimentary materials on the bottom wall and remove suspended matter on the liquid surface, but also allow the fish oil to drip continuously in the distillation kettle to increase the contact between the gas and liquid phases, thereby achieving the beneficial effect of improving the evaporation and purification efficiency of the fish oil. The device solves the problem that in the prior art mentioned in the above background technology, the distillation kettle used for evaporation and purification is usually only provided with a simple stirring device to accelerate distillation, and the distillation efficiency still needs to be further improved.

[0007] The present invention provides the following technical solution: an evaporation and purification device for fish oil processing, comprising a base, a distillation mechanism and a condensation mechanism, wherein the distillation mechanism comprises a distillation kettle arranged on the base, the distillation kettle is provided with a liquid inlet pipeline, the condensation mechanism comprises a cooling tower arranged on the base, and a spiral condensation pipeline is arranged in the cooling tower;

[0008] The fish oil is injected into the distillation kettle through the liquid inlet pipe for distillation to form fish oil vapor, and the fish oil vapor is then injected into the condensation pipe for condensation to obtain purified fish oil;

[0009] The distillation kettle is provided with a plurality of accelerated distillation mechanisms and a circulating movement mechanism, wherein the accelerated distillation mechanism comprises a liquid receiving tray with an opening facing upward, and the liquid receiving tray is provided with a plurality of first filter holes, and the circulating movement mechanism comprises a chain, and a plurality of the liquid receiving trays are respectively installed on the chain through a plurality of connecting mechanisms;

[0010] During distillation, the chain drives a plurality of liquid receiving plates to circulate up and down the liquid surface in the distillation kettle, thereby accelerating the contact between the gas and liquid phases in the distillation kettle to improve the distillation efficiency.

[0011] As an optional solution of the evaporation and purification device for fish oil processing described in the present invention, wherein: a first valve is arranged on the liquid inlet pipeline, a gooseneck is arranged on the upper end of the distillation kettle, a heating chamber is opened inside the distillation kettle, the heating chamber is filled with heat transfer oil, a plurality of electric heating rods are arranged in the heating chamber, a sewage pipe is arranged at the lower end of the distillation kettle, and a second valve is arranged on the sewage pipe;

[0012] A connecting pipe and a cooling water outlet are provided at the upper end of the cooling tower, the connecting pipe is connected to the gooseneck pipe, a third valve is provided on the connecting pipe, and a liquid outlet pipe and a cooling water inlet are provided at the lower end of the cooling tower, the connecting pipe and the liquid outlet pipe are respectively connected to the two ends of the condensation pipe.

[0013] As an optional solution of the evaporation and purification device for fish oil processing of the present invention, wherein: the circulating movement mechanism also includes two first rotating shafts and two second rotating shafts rotatably arranged in the distillation kettle, the two first rotating shafts are located below the liquid level in the distillation kettle, and the two second rotating shafts are located above the liquid level in the distillation kettle;

[0014] The two first rotating shafts are each provided with a first sprocket, the two second rotating shafts are each provided with a second sprocket, the two first sprockets and the two second sprockets are all meshed with the chain, and a motor is provided in the distillation kettle, and the output shaft of the motor is connected to one of the first rotating shafts.

[0015] As an optional solution of the evaporation purification device for fish oil processing described in the present invention, a filter plate is slidably arranged in the liquid receiving tray, and a plurality of second filter holes are opened on the filter plate, and the plurality of second filter holes are respectively matched with the plurality of first filter holes.

[0016] As an optional solution of the evaporation and purification device for fish oil processing of the present invention, wherein: the connecting mechanism includes a connecting seat arranged on the chain, and a square rod is arranged on the liquid receiving tray;

[0017] A circular groove is formed in the connecting seat. A first round rod is slidably arranged in the circular groove. A limiting ring is arranged on the first round rod. A first sliding groove is formed in the first round rod. The square rod is slidably connected in the square rod.

[0018] An insertion block and a connecting rod are arranged on the first round rod. A jack is formed in the square rod. The jack is fitted with the insertion block. The connecting rod is connected with the filter plate.

[0019] As an optional scheme of the evaporation and purification device for fish oil processing described in the present invention, wherein: leakage holes are formed in the liquid receiving tray;

[0020] The circulating and moving mechanism further includes two third rotating shafts rotatably arranged in the distillation kettle. One of the third rotating shafts is below the liquid level in the distillation kettle, and the other third rotating shaft is above the liquid level in the distillation kettle. Third sprockets are arranged on both of the third rotating shafts. Both of the third sprockets are engaged with the chain.

[0021] As an optional scheme of the evaporation and purification device for fish oil processing described in the present invention, wherein: a guiding mechanism is further arranged in the distillation kettle. The guiding mechanism includes a sealing groove formed in the inner wall of the distillation kettle. A sealing rubber strip is slidably arranged in the sealing groove. The first round rod is arranged on the sealing rubber strip;

[0022] The sealing rubber strip includes a slack section, a clamping section and two connecting sections. The slack section is above the liquid level in the distillation kettle. The clamping section is below the liquid level in the distillation kettle. Both ends of the slack section are respectively connected with both ends of the clamping section through the two connecting sections.

[0023] As an optional scheme of the evaporation and purification device for fish oil processing described in the present invention, wherein: the guiding mechanism further includes a second round rod. A second sliding groove is formed in the first round rod. The second round rod is slidably connected in the second sliding groove;

[0024] A first guiding rod and a second guiding rod are arranged on the second round rod. A first guiding groove and a second guiding groove are formed in the distillation kettle. The first guiding rod is slidably connected in the first guiding groove. The second guiding rod is slidably connected in the second guiding groove. The shapes of the first guiding groove and the second guiding groove are both consistent with the contour of the chain. And the first guiding groove is located above the second guiding groove.

[0025] As an optional scheme of the evaporation and purification device for fish oil processing described in the present invention, wherein: a scraping plate is arranged at the lower end of the liquid receiving tray. A plurality of third filter holes are formed in the scraping plate. The plurality of third filter holes respectively correspond to a plurality of the first filter holes one by one.

[0026] The present invention also provides the following technical solution: A method for using an evaporation and purification device for fish oil processing, comprising the following steps:

[0027] S1. Continuously inject fish oil into the distillation kettle through the liquid inlet pipe to maintain the liquid level height in the distillation kettle, and then heat the heat-conducting oil in the heating cavity through the electric heating rod to distill the fish oil. The liquid fish oil is evaporated and purified to form fish oil vapor. The fish oil vapor spirally descends in the condensation pipe through the gooseneck pipe and the connecting pipe. During the descending process, continuously inject cooling water into the cooling tower through the cooling water inlet, and collect the condensed liquid fish oil through the liquid outlet pipe;

[0028] S2. During the distillation process, the motor runs to drive the chain to drive several liquid receiving trays to move circularly in the distillation kettle. When the liquid receiving tray is below the liquid level, several second filter holes and several first filter holes are in a misaligned state. At this time, the third filter hole on the liquid receiving tray shovels the sediment on the bottom wall of the distillation kettle during the movement;

[0029] Then the liquid receiving tray continues to move to the liquid level position. At this time, the liquid receiving tray moves along the liquid level from one end of the distillation kettle to the other end, and collects the suspended matter on the liquid surface into the liquid receiving tray through the leakage holes;

[0030] Finally, the liquid receiving tray moves to a position above the liquid level. At this time, several second filter holes and several first filter holes fit together. The fish oil in the upper liquid receiving tray gradually falls into the lower liquid receiving tray and then back to the liquid level. The continuous dripping of the fish oil increases the contact between the gas-liquid two phases in the distillation kettle.

[0031] The present invention has the following beneficial effects:

[0032] 1. For the evaporation and purification device for fish oil processing and its using method, a plurality of liquid receiving trays are arranged on the distillation kettle and can move circularly up and down the liquid level along with the running of the chain. When below the liquid level, the filter plate is automatically misaligned with the first filter hole on the liquid receiving tray, so that the liquid receiving tray can retain part of the fish oil and bring it out above the liquid level. And when the liquid receiving tray leaves the liquid level, the filter plate automatically fits with the first filter hole, and the fish oil gradually drips from top to bottom. The fish oil is in full contact with the gas through splashing, slow dripping, etc., so as to achieve the effects of heat transfer and mass transfer, promote the heat and mass exchange between the two fluids, and achieve the purpose of separating the components of the liquid mixture or gas mixture. The efficiency of evaporation and purification is improved.

[0033] 2. For the evaporation and purification device for fish oil processing and its using method, considering that there will be some suspended matter on the surface of the fish oil, which affects the evaporation of the lower liquid. Therefore, the liquid receiving tray is set to not directly leave the liquid level, but first move horizontally along the liquid level. During the horizontal movement, the liquid receiving tray also retains the suspended matter through the leakage holes on it and takes it away from the liquid level. It also plays a role in accelerating evaporation.

[0034] 3. The evaporation and purification device for fish oil processing and its usage method. Considering that there will be some sediments in the fish oil precipitating on the bottom wall of the distillation kettle, on the one hand, this part of the sediments will affect the upward heat transfer of the heat source below, and on the other hand, it is also easy to cause the bottom of the kettle to burn. Therefore, a scraper is installed at the lower end of the liquid receiving tray. When the liquid receiving tray moves horizontally along the bottom wall, it will also shovel up the sediments on the bottom wall, and at the same time play a role in stirring the liquid, further accelerating evaporation. And when the liquid receiving tray moves horizontally on the bottom wall, it will be automatically clamped for easy scraping, while when the liquid receiving tray moves horizontally on the liquid surface, it will automatically be in a relaxed state and can swing with the liquid surface fluctuation to facilitate contact with the suspended matter. Brief Description of the Drawings

[0035] Figure 1 It is a schematic structural diagram of the whole of the present invention.

[0036] Figure 2 It is a schematic cross-sectional structural diagram of the whole of the present invention.

[0037] Figure 3 It is a schematic cross-sectional structural diagram inside the distillation kettle of the present invention.

[0038] Figure 4 For the present invention Figure 3 It is a schematic enlarged partial structural diagram at A in the present invention.

[0039] Figure 5 It is a schematic structural diagram of the first guide groove and the second guide groove in the present invention.

[0040] Figure 6 It is a schematic structural diagram of the accelerated distillation mechanism in the present invention.

[0041] Figure 7 It is an exploded structural diagram of the connection mechanism in the present invention.

[0042] Figure 8 It is a schematic structural diagram of the cyclic movement mechanism in the present invention.

[0043] In the figure: 100, base; 200, distillation mechanism; 210, distillation kettle; 220, liquid inlet pipe; 230, first valve; 240, gooseneck tube; 250, heating chamber; 260, electric heating rod; 270, sewage discharge pipe; 280, second valve; 300, condensation mechanism; 310, cooling tower; 320, connecting pipe; 330, third valve; 340, liquid outlet pipe; 350, condensation pipe; 360, cooling water inlet; 370, cooling water outlet; 400, accelerated distillation mechanism; 410, liquid receiving tray; 420, first filter hole; 430, filter plate; 440, second filter hole; 450, scraper; 460, third filter hole; 470, leakage hole; 500, circulating and moving mechanism; 510, chain; 520, first rotating shaft; 530, second rotating shaft; 540, first sprocket; 550, second sprocket; 560, motor; 570, third rotating shaft; 580, third sprocket; 600, connecting mechanism; 610, connecting seat; 620, square rod; 630, circular groove; 640, first round rod; 650, limiting ring; 660, first sliding groove; 670, insertion block; 680, insertion hole; 690, connecting rod; 700, guiding mechanism; 710, sealing groove; 720, sealing rubber strip; 721, slack section; 722, clamping section; 723, connecting section; 730, second round rod; 740, second sliding groove; 750, first guiding rod; 760, first guiding groove; 770, second guiding rod; 780, second guiding groove. Specific embodiments

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0045] Please refer to Figures 1-8 , an evaporation and purification device for fish oil processing, including a base 100, a distillation mechanism 200 and a condensation mechanism 300. The distillation mechanism 200 includes a distillation kettle 210 arranged on the base 100, and a liquid inlet pipe 220 is arranged on the distillation kettle 210. The condensation mechanism 300 includes a cooling tower 310 arranged on the base 100, and a spiral condensation pipe 350 is arranged in the cooling tower 310;

[0046] After injecting fish oil into the distillation kettle 210 through the liquid inlet pipe 220, distillation is carried out to form fish oil vapor, and the fish oil vapor is then injected into the condensation pipe 350 for condensation to obtain purified fish oil;

[0047] Inside the distillation kettle 210, several accelerating distillation mechanisms 400 and circulating moving mechanisms 500 are provided. The accelerating distillation mechanism 400 includes a liquid receiving tray 410 with an upward opening. A plurality of first filter holes 420 are formed in the liquid receiving tray 410. The circulating moving mechanism 500 includes a chain 510. A plurality of liquid receiving trays 410 are respectively installed on the chain 510 through a plurality of connecting mechanisms 600;

[0048] During distillation, the operation of the chain 510 drives a plurality of liquid receiving trays 410 to circulate up and down in the liquid level inside the distillation kettle 210, so as to accelerate the contact between the gas-liquid two phases inside the distillation kettle 210 and improve the distillation efficiency;

[0049] A first valve 230 is provided on the liquid inlet pipe 220. A gooseneck pipe 240 is provided at the upper end of the distillation kettle 210. A heating chamber 250 is formed inside the distillation kettle 210. Heat-conducting oil is filled in the heating chamber 250. A plurality of electric heating rods 260 are provided in the heating chamber 250. A sewage discharge pipe 270 is provided at the lower end of the distillation kettle 210. A second valve 280 is provided on the sewage discharge pipe 270;

[0050] A connecting pipe 320 and a cooling water outlet 370 are provided at the upper end of the cooling tower 310. The connecting pipe 320 is communicated with the gooseneck pipe 240. A third valve 330 is provided on the connecting pipe 320. A liquid outlet pipe 340 and a cooling water inlet 360 are provided at the lower end of the cooling tower 310. The connecting pipe 320 and the liquid outlet pipe 340 are respectively communicated with both ends of the condensation pipe 350;

[0051] The circulating moving mechanism 500 further includes two first rotating shafts 520 and two second rotating shafts 530 rotatably arranged inside the distillation kettle 210. The two first rotating shafts 520 are located below the liquid level inside the distillation kettle 210. The two second rotating shafts 530 are located above the liquid level inside the distillation kettle 210;

[0052] First sprockets 540 are provided on both of the two first rotating shafts 520. Second sprockets 550 are provided on both of the two second rotating shafts 530. The two first sprockets 540 and the two second sprockets 550 are all engaged with the chain 510. A motor 560 is provided inside the distillation kettle 210. The output shaft of the motor 560 is connected to one of the first rotating shafts 520;

[0053] A scraper 450 is provided at the lower end of the liquid receiving tray 410. A plurality of third filter holes 460 are formed in the scraper 450. The plurality of third filter holes 460 respectively coincide with the plurality of first filter holes 420 one by one.

[0054] In this embodiment: Open the first valve 230, and unpurified fish oil can be continuously injected into the distillation kettle 210 through the liquid inlet pipe 220. A liquid level gauge can be installed in the distillation kettle 210 to control the liquid level in the distillation kettle 210 to always remain within a certain range. Electrify the electric heating rod 260 to generate heat, and heat the fish oil in the distillation kettle 210 by means of oil bath heating.

[0055] Each component in the fish oil is gradually heated to form vapor. The vapor enters the condensation pipe 350 through the gooseneck pipe 240 and the connecting pipe 320. Tap water or the like can be used as cooling water and connected from the cooling water inlet 360. The vapor condenses in the condensation pipe 350, and then the liquid of the corresponding component is collected through the liquid outlet pipe 340, thus completing the evaporation and purification.

[0056] In the distillation kettle 210, the operation of the motor 560 drives one of the first rotating shafts 520 and the first sprocket 540 to rotate. As the driving sprocket, the remaining sprockets are driven, so that the chain 510 moves clockwise. Initially, the chain 510 is set as a rectangle through two first sprockets 540 and two second sprockets 550. A number of liquid receiving trays 410 are installed on the links of the chain 510 and move in a cycle in the distillation kettle 210.

[0057] When the liquid receiving tray 410 sinks below the liquid level, a part of the fish oil will be contained in the liquid receiving tray 410. After rising from the liquid level, the fish oil gradually drips after being filtered through the first filter holes 420, and gradually drips from the uppermost liquid receiving tray 410 to the lower liquid receiving tray 410 and then to the liquid level. During this process, a certain liquid layer is formed in the tray. This liquid layer provides a sufficient contact area for the gas-liquid two-phase, enabling components with different boiling points to perform heat exchange and mass transfer more effectively, thereby achieving preliminary separation. At the same time, due to the sufficient contact of the gas-liquid two-phase in the liquid receiving tray, impurities can be removed more effectively, thus obtaining a purer product.

[0058] At the same time, a scraper 450 is also installed below the liquid receiving tray 410. When the liquid receiving tray 410 moves leftward along the lower side of the chain 510, the scraper 450 contacts the bottom wall of the distillation kettle 210, and can shovel up some sediments in the fish oil, which is beneficial to the heat transfer on the lower side on the one hand, and can also play a role in stirring the fish oil on the other hand.

[0059] The circulating moving mechanism 500 and the plurality of connecting mechanisms 600 are symmetrically arranged in two groups. Embodiment 2

[0060] This embodiment is an improved description based on Embodiment 1. Specifically, please refer to Figures 2-7, a filter plate 430 is slidably arranged in the liquid receiving tray 410, and a plurality of second filter holes 440 are formed in the filter plate 430, and the plurality of second filter holes 440 respectively correspond to the plurality of first filter holes 420 one by one;

[0061] The connecting mechanism 600 includes a connecting seat 610 arranged on the chain 510, and a square rod 620 is arranged on the liquid receiving tray 410;

[0062] A circular groove 630 is formed in the connecting seat 610, a first round rod 640 is slidably arranged in the circular groove 630, a limiting ring 650 is arranged on the first round rod 640, a first sliding groove 660 is formed in the first round rod 640, and the square rod 620 is slidably connected in the square rod 620;

[0063] An insertion block 670 and a connecting rod 690 are arranged on the first round rod 640, a jack 680 is formed in the square rod 620, the jack 680 corresponds to the insertion block 670, and the connecting rod 690 is connected to the filter plate 430.

[0064] In this embodiment: In order to enable the fish oil contained in the liquid receiving tray 410 to sink below the liquid level and reach above the liquid level, and then gradually drip down. A filter plate 430 is added to the lower side of the liquid receiving tray 410, and the holes on the liquid receiving tray 410 and the filter plate 430 correspond to each other one by one.

[0065] As Figure 4 shown in, when the liquid receiving tray 410 moves above the liquid level, the cylindrical first round rod 640 and the limiting ring 650 on its surface are at the leftmost side of the cylindrical circular groove 630. At this time, the connecting rod 690 connected to the first round rod 640 pulls the filter plate 430 to the left position. At this time, the first filter holes 420 and the second filter holes 440 are in one-to-one correspondence, and the fish oil can finally drip down through the first filter holes 420, the second filter holes 440, and the third filter holes 460.

[0066] When the liquid receiving tray 410 moves below the liquid level, the first round rod 640 and the limiting ring 650 move to the right, and the connecting rod 690 pushes the filter plate 430 to the right, so that the first filter holes 420 and the second filter holes 440 are displaced. At this time, the fish oil will remain on the liquid receiving tray 410. Embodiment Three

[0067] This embodiment is an improved description based on Embodiment Two. Specifically, please refer to Figures 2-8 , a leakage hole 470 is formed in the liquid receiving tray 410;

[0068] The cyclic movement mechanism 500 further includes two third rotating shafts 570 rotatably arranged in the distillation kettle 210. One of the third rotating shafts 570 is below the liquid level in the distillation kettle 210, and the other third rotating shaft 570 is above the liquid level in the distillation kettle 210. Third sprockets 580 are arranged on both of the two third rotating shafts 570, and both of the two third sprockets 580 are engaged with the chain 510.

[0069] In this embodiment: In addition to cleaning the sediment in the fish oil on the bottom wall, the suspended matter on the surface of the fish oil is also removed. Two third rotating shafts 570 and two third sprockets 580 are added, one above the other in the middle position, so that the chain 510 forms a lying U shape, and the chain 510 between one of the first sprockets 540 and the third sprocket 580 on the lower side corresponds to the liquid level position.

[0070] The liquid receiving tray 410 is caused to move horizontally along the liquid level. During the horizontal movement, the suspended matter on the liquid level falls into the liquid receiving tray 410 through the leakage holes 470 and is retained. The first filter holes 420 can filter the suspended matter to prevent it from dripping down. In addition, by designing the diameters of the three filter holes, upper and lower, part of the suspended matter can be retained in the liquid receiving tray 410. A cleaning device can also be arranged above the distillation kettle 210, such as installing a suction nozzle. When the liquid receiving tray 410 passes through the uppermost position during horizontal movement, the suction nozzle is used to suck away the suspended matter.

[0071] When the liquid receiving tray 410 is below the liquid level, the bottom wall is shoveled. At this time, the first round rod 640 and the limiting ring 650 move to the right, and the insertion block 670 is also aligned with the insertion hole 680 and is inserted and connected. The two first round rods 640 will clamp the two square rods 620 and the liquid receiving tray 410 in the middle, facilitating the scraping plate 450 on the liquid receiving tray 410 to shovel up the sediment on the bottom wall.

[0072] When the liquid receiving tray 410 moves horizontally at the liquid level position, it can better contact the suspended matter. As Figure 4 shown, at this time, the square rod 620 is in the first sliding groove 660, and the square rod 620 is not resisted by the first round rod 640. The liquid receiving tray 410 and the square rod 620 can swing within a certain range with the fluctuation of the liquid level. Embodiment Four

[0073] This embodiment is an improvement description based on Embodiment Three. Specifically, please refer to Figures 2-8 , a guiding mechanism 700 is further arranged in the distillation kettle 210. The guiding mechanism 700 includes a sealing groove 710 opened on the inner wall of the distillation kettle 210. A sealing rubber strip 720 is slidably arranged in the sealing groove 710, and the first round rod 640 is arranged on the sealing rubber strip 720;

[0074] The sealing strip 720 includes a slack section 721, a clamping section 722, and two connecting sections 723. The slack section 721 is above the liquid level in the still 210, the clamping section 722 is below the liquid level in the still 210, and both ends of the slack section 721 are connected to both ends of the clamping section 722 through the two connecting sections 723 respectively;

[0075] The guiding mechanism 700 further includes a second round rod 730. A second sliding groove 740 is formed on the first round rod 640, and the second round rod 730 is slidably connected in the second sliding groove 740;

[0076] A first guiding rod 750 and a second guiding rod 770 are arranged on the second round rod 730. A first guiding groove 760 and a second guiding groove 780 are formed in the still 210. The first guiding rod 750 is slidably connected in the first guiding groove 760, and the second guiding rod 770 is slidably connected in the second guiding groove 780. The shapes of the first guiding groove 760 and the second guiding groove 780 are both consistent with the contour of the chain 510, and the first guiding groove 760 is located above the second guiding groove 780.

[0077] In this embodiment: In order to control the liquid receiving tray 410 to be clamped by the two first round rods 640 below the liquid level, and above the liquid level, to be in a state where it can swing with the fluctuation of the liquid level. And in order to control the filter plate 430 to be misaligned with the first filter holes 420 to retain liquid below the liquid level, and to fit with the first filter holes 420 for liquid to drip above the liquid level. And in order to control the liquid receiving tray 410 to always keep its opening upward. A guiding mechanism 700 is provided.

[0078] Specifically, first, the first round rod 640 and the limiting ring 650 can both slide and rotate in the circular groove 630. The square rod 620 and the first sliding groove 660 are rectangular. The rotation of the first round rod 640 will drive the square rod 620 and the liquid receiving tray 410 to rotate. The second round rod 730 and the second sliding groove 740 are also in rectangular contact, and the rotation of the second round rod 730 can drive the first round rod 640 to rotate.

[0079] The first guide rod 750 and the second guide rod 770 installed on the second round rod 730 have the same shape, with one on the upper side and the other on the lower side. The first guide groove 760 and the second guide groove 780 formed on the inner wall of the distillation kettle 210 have the same shape and are equidistant from the contour of the chain 510. The first guide groove 760 is on the upper side, and the second guide groove 780 is arranged downward along the first guide groove 760 by a certain distance. The distance between the first guide groove 760 and the second guide groove 780 is the same as the distance between the first guide rod 750 and the second guide rod 770. Due to the limitation of the first guide groove 760 and the second guide groove 780, the first guide rod 750 and the second guide rod 770 will always keep the first guide rod 750 vertically upward and the second guide rod 770 vertically downward. As a result, during the movement of the second round rod 730, the first round rod 640, the square rod 620, and the liquid receiving tray 410 along with the chain 510, they can automatically rotate to adjust their positions, so that the opening of the liquid receiving tray 410 always faces upward.

[0080] The sealing rubber strip 720 slidably installed on the inner wall of the distillation kettle 210, on the one hand, plays a sealing role, which can prevent the circulating movement mechanism 500 from being exposed to the liquid. In addition, the sealing rubber strip 720 also plays a guiding role. Below the liquid level, the position of the clamping section 722 is closer to the liquid. At this time, the sealing rubber strip 720 will drive the first round rod 640 to move to the right, so that the liquid receiving tray 410 is in a state of being clamped by the two first round rods 640, and the filter plate 430 is misaligned with the first filter hole 420.

[0081] During the upward movement, when passing through the connecting section 723 to reach the slack section 721, the first round rod 640 moves to the left. The liquid receiving tray 410 is loosened, and the filter plate 430 fits with the first filter hole 420. Embodiment Five

[0082] Specifically, please refer to Figures 1-8 , a method for using an evaporation and purification device for fish oil processing, including the following steps:

[0083] S1. Continuously inject fish oil into the distillation kettle 210 through the liquid inlet pipe 220 to maintain the liquid level height in the distillation kettle 210. Then, heat the heat-conducting oil in the heating cavity 250 through the electric heating rod 260 to distill the fish oil. The liquid fish oil is evaporated and purified to form fish oil vapor. The fish oil vapor enters the condensation pipe 350 through the gooseneck pipe 240 and the connecting pipe 320 and spirally descends. During the descent, continuously inject cooling water into the cooling tower 310 through the cooling water inlet 360, and collect the condensed liquid fish oil through the liquid outlet pipe 340;

[0084] S2. During the distillation process, the motor 560 runs to drive the chain 510 to carry a number of liquid receiving trays 410 to move cyclically in the distillation kettle 210. When the liquid receiving tray 410 is below the liquid level, a number of second filter holes 440 and a number of first filter holes 420 are in a misaligned state. At this time, the third filter hole 460 on the liquid receiving tray 410 shovels the sediment on the bottom wall of the distillation kettle 210 during the movement;

[0085] Then the liquid receiving tray 410 continues to move to the liquid level position. At this time, the liquid receiving tray 410 moves from one end of the distillation kettle 210 to the other end along the liquid level, and collects the suspended matters on the liquid surface into the liquid receiving tray 410 through the leakage holes 470;

[0086] Finally, the liquid receiving tray 410 moves to a position above the liquid level. At this time, a number of second filter holes 440 and a number of first filter holes 420 fit together. The fish oil in the upper liquid receiving tray 410 gradually falls into the lower liquid receiving tray 410 and then back to the liquid level, increasing the contact between the gas and liquid phases in the distillation kettle 210 through the continuous dripping of the fish oil.

[0087] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0088] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. An evaporation and purification device for fish oil processing, comprising a base (100), a distillation mechanism (200) and a condensation mechanism (300), characterized in that: The distillation mechanism (200) includes a distillation kettle (210) arranged on the base (100). An inlet liquid pipeline (220) is arranged on the distillation kettle (210). The condensation mechanism (300) includes a cooling tower (310) arranged on the base (100). A spiral condensation pipeline (350) is arranged inside the cooling tower (310); After injecting fish oil into the distillation kettle (210) through the inlet liquid pipeline (220), distillation is carried out to form fish oil vapor, and the fish oil vapor is then injected into the condensation pipeline (350) for condensation to obtain purified fish oil; A number of accelerating distillation mechanisms (400) and circulating moving mechanisms (500) are arranged inside the distillation kettle (210). The accelerating distillation mechanism (400) includes a liquid receiving tray (410) with an upward opening. A number of first filter holes (420) are formed on the liquid receiving tray (410). The circulating moving mechanism (500) includes a chain (510). A number of the liquid receiving trays (410) are respectively installed on the chain (510) through a number of connecting mechanisms (600); During distillation, the chain (510) runs to drive a number of the liquid receiving trays (410) to circulate up and down in the liquid level inside the distillation kettle (210), so as to accelerate the contact between the gas-liquid two phases inside the distillation kettle (210) to improve the distillation efficiency; A filter plate (430) is slidably arranged inside the liquid receiving tray (410). A number of second filter holes (440) are formed on the filter plate (430). A number of the second filter holes (440) respectively coincide with a number of the first filter holes (420); The connecting mechanism (600) includes a connecting seat (610) arranged on the chain (510). A square rod (620) is arranged on the liquid receiving tray (410); A circular groove (630) is formed on the connecting seat (610). A first round rod (640) is slidably arranged inside the circular groove (630). A limiting ring (650) is arranged on the first round rod (640). A first sliding groove (660) is formed on the first round rod (640). The square rod (620) is slidably connected inside the square rod (620); An insertion block (670) and a connecting rod (690) are arranged on the first round rod (640). A jack (680) is formed on the square rod (620). The jack (680) coincides with the insertion block (670). The connecting rod (690) is connected to the filter plate (430).

2. The evaporation and purification device for fish oil processing according to claim 1, characterized in that: A first valve (230) is arranged on the inlet liquid pipeline (220). A gooseneck pipe (240) is arranged at the upper end of the distillation kettle (210). A heating cavity (250) is formed inside the distillation kettle (210). Heat-conducting oil is filled inside the heating cavity (250). A number of electric heating rods (260) are arranged inside the heating cavity (250). A sewage discharge pipeline (270) is arranged at the lower end of the distillation kettle (210). A second valve (280) is arranged on the sewage discharge pipeline (270); The upper end of the cooling tower (310) is provided with a connecting pipe (320) and a cooling water outlet (370). The connecting pipe (320) communicates with the gooseneck pipe (240). A third valve (330) is arranged on the connecting pipe (320). The lower end of the cooling tower (310) is provided with a liquid outlet pipe (340) and a cooling water inlet (360). The connecting pipe (320) and the liquid outlet pipe (340) are respectively communicated with both ends of the condensation pipe (350).

3. An evaporation and purification device for fish oil processing according to claim 2, characterized in that: The circulating and moving mechanism (500) further includes two first rotating shafts (520) and two second rotating shafts (530) rotatably arranged in the distillation kettle (210). The two first rotating shafts (520) are located below the liquid level in the distillation kettle (210), and the two second rotating shafts (530) are located above the liquid level in the distillation kettle (210); First sprockets (540) are arranged on both of the two first rotating shafts (520), second sprockets (550) are arranged on both of the two second rotating shafts (530), the two first sprockets (540) and the two second sprockets (550) are all meshed with the chain (510). A motor (560) is arranged in the distillation kettle (210), and the output shaft of the motor (560) is connected to one of the first rotating shafts (520).

4. An evaporation and purification device for fish oil processing according to claim 3, characterized in that: Leak holes (470) are formed in the liquid receiving tray (410); The circulating and moving mechanism (500) further includes two third rotating shafts (570) rotatably arranged in the distillation kettle (210). One of the third rotating shafts (570) is located below the liquid level in the distillation kettle (210), and the other third rotating shaft (570) is located above the liquid level in the distillation kettle (210). Third sprockets (580) are arranged on both of the two third rotating shafts (570), and the two third sprockets (580) are all meshed with the chain (510).

5. An evaporation and purification device for fish oil processing according to claim 4, characterized in that: A guiding mechanism (700) is further arranged in the distillation kettle (210). The guiding mechanism (700) includes a sealing groove (710) formed on the inner wall of the distillation kettle (210). A sealing rubber strip (720) is slidably arranged in the sealing groove (710), and the first round rod (640) is arranged on the sealing rubber strip (720); The sealing rubber strip (720) includes a slack section (721), a clamping section (722) and two connecting sections (723). The slack section (721) is located above the liquid level in the distillation kettle (210), the clamping section (722) is located below the liquid level in the distillation kettle (210), and both ends of the slack section (721) are respectively connected to both ends of the clamping section (722) through the two connecting sections (723).

6. The evaporation and purification device for fish oil processing according to claim 5, wherein: The guiding mechanism (700) further includes a second round rod (730). A second sliding groove (740) is formed on the first round rod (640), and the second round rod (730) is slidably connected in the second sliding groove (740); A first guide rod (750) and a second guide rod (770) are provided on the second round rod (730). A first guide groove (760) and a second guide groove (780) are formed in the distillation kettle (210). The first guide rod (750) is slidably connected in the first guide groove (760), and the second guide rod (770) is slidably connected in the second guide groove (780). The shapes of the first guide groove (760) and the second guide groove (780) are both consistent with the contour of the chain (510), and the first guide groove (760) is located above the second guide groove (780).

7. An evaporation and purification device for fish oil processing according to claim 6, characterized in that: A scraper (450) is provided at the lower end of the liquid receiving tray (410). A number of third filter holes (460) are formed in the scraper (450), and the number of the third filter holes (460) respectively coincides with the number of the first filter holes (420).

8. The method for using an evaporation and purification device for fish oil processing according to claim 7, characterized in that, It includes the following steps: S1. Continuously inject fish oil into the distillation kettle (210) through the liquid inlet pipe (220) to maintain the liquid level height in the distillation kettle (210). Then, heat the heat-conducting oil in the heating cavity (250) through the electric heating rod (260) to distill the fish oil. The liquid fish oil is evaporated and purified to form fish oil vapor. The fish oil vapor enters the condensation pipe (350) through the gooseneck pipe (240) and the connecting pipe (320) and spirally descends. During the descending process, continuously inject cooling water into the cooling tower (310) through the cooling water inlet (360), and collect the condensed liquid fish oil through the liquid outlet pipe (340). S2. During the distillation process, operate the motor (560) to drive the chain (510) to drive a number of liquid receiving trays (410) to circulate and move in the distillation kettle (210). When the liquid receiving tray (410) is below the liquid level, a number of second filter holes (440) and a number of first filter holes (420) are in a misaligned state. At this time, the third filter holes (460) on the liquid receiving tray (410) shovel the sediment on the bottom wall of the distillation kettle (210) during the movement. Then the liquid receiving tray (410) continues to move to the liquid level position. At this time, the liquid receiving tray (410) moves along the liquid level from one end of the distillation kettle (210) to the other end, and collects the suspended matter on the liquid surface into the liquid receiving tray (410) through the leakage holes (470). Finally, the liquid receiving tray (410) moves to a position above the liquid level. At this time, a number of second filter holes (440) coincide with a number of first filter holes (420). The fish oil in the upper liquid receiving tray (410) gradually falls into the lower liquid receiving tray (410) and then falls back to the liquid level, increasing the contact between the gas and liquid phases in the distillation kettle (210) through the continuous dripping of the fish oil.

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