Evaporation and purification device for fish oil processing and use method of evaporation and purification device

Abstract

The invention relates to the technical field of marine industry, and discloses an evaporation and purification device for fish oil processing and a use method thereof.The evaporation and purification device for fish oil processing comprises a base, a distillation mechanism and a condensation mechanism, the distillation mechanism comprises a distillation still arranged on the base, and a liquid inlet pipeline is arranged on the distillation still; the condensation mechanism comprises a cooling tower arranged on the base, and a spiral condensation pipeline is arranged in the cooling tower; fish oil is injected into the distillation kettle through the liquid inlet pipeline and then distilled to form fish oil steam, the fish oil steam is then injected into the condensation pipeline to be condensed, and purified fish oil is obtained. According to the evaporation and purification device for fish oil processing and the use method thereof, a plurality of circularly moving liquid receiving trays are mounted in the distillation kettle, so that substances deposited on the bottom wall can be shoveled, suspended solids on the liquid level can be removed, and fish oil can continuously drop in the distillation kettle to increase the contact of gas and liquid phases, so that the evaporation and purification efficiency of the fish oil is improved.

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; 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; 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; 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.

[0008] 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; 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.

[0009] 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; 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.

[0010] 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.

[0011] 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; The connecting seat is provided with a circular groove, 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 provided on the first round rod, and the square rod is slidably connected in the square rod; The first round rod is provided with an insert block and a connecting rod, the square rod is provided with an insert hole, the insert hole is matched with the insert block, and the connecting rod is connected with the filter plate.

[0012] As an optional solution of the evaporation and purification device for fish oil processing described in the present invention, wherein: a leakage hole is opened on the liquid receiving plate; The circulating movement mechanism also includes two third rotating shafts rotatably arranged in the distillation kettle, one of the third rotating shafts is located below the liquid level in the distillation kettle, and the other third rotating shaft is located above the liquid level in the distillation kettle, and both of the third rotating shafts are provided with third sprockets, and both of the third sprockets are engaged with the chain.

[0013] As an optional solution of the evaporation and purification device for fish oil processing described in the present invention, wherein: a guide mechanism is also arranged in the distillation kettle, the guide mechanism comprises a sealing groove opened on the inner wall of the distillation kettle, a sealing strip is slidably arranged in the sealing groove, and the first round rod is arranged on the sealing strip; The sealing strip includes a relaxation section, a clamping section and two connecting sections. The relaxation section is located above the liquid level in the distillation kettle, the clamping section is located below the liquid level in the distillation kettle, and the two ends of the relaxation section are respectively connected to the two ends of the clamping section through two connecting sections.

[0014] As an optional solution of the evaporation and purification device for fish oil processing of the present invention, wherein: the guide mechanism further includes a second round rod, a second slide groove is provided on the first round rod, and the second round rod is slidably connected in the second slide groove; A first guide rod and a second guide rod are arranged on the second round rod, a first guide groove and a second guide groove are opened in the distillation kettle, the first guide rod is slidably connected in the first guide groove, the second guide rod is slidably connected in the second guide groove, the shapes of the first guide groove and the second guide groove are consistent with the contour of the chain, and the first guide groove is located on the upper side of the second guide groove.

[0015] As an optional solution of the evaporation and purification device for fish oil processing described in the present invention, a scraper is provided at the lower end of the liquid receiving plate, and a plurality of third filter holes are opened on the scraper, and the plurality of third filter holes respectively match with the plurality of first filter holes one by one.

[0016] The present invention also provides the following technical solution: a method for using an evaporation purification device for fish oil processing, comprising the following steps: S1, continuously injecting fish oil into the still through the liquid inlet pipe to maintain the liquid level in the still, then heating the heat-conducting oil in the heating chamber by 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 enters the condensation pipe through the gooseneck and the connecting pipe and spirally descends, during the descent, continuously injecting cooling water into the cooling tower through the cooling water inlet, and collecting the condensed liquid fish oil through the liquid outlet pipe; S2. During the distillation process, the motor drives the chain to move the plurality of liquid receiving plates in a circular motion in the distillation kettle. When the liquid receiving plates are below the liquid level, the plurality of second filter holes and the plurality of first filter holes are in a misaligned state. At this time, the third filter holes on the liquid receiving plates shovel the sediment on the bottom wall of the distillation kettle during the movement. Then the receiving pan continues to move to the liquid level. At this time, the receiving pan moves along the liquid level from one end of the still to the other end, and collects the suspended matter on the liquid level into the receiving pan through the leak hole. Finally, the liquid receiving plate moves to a position above the liquid surface. At this time, several second filter holes match several first filter holes. The fish oil in the upper liquid receiving plate gradually falls into the lower liquid receiving plate and then falls back to the liquid surface. The continuous dripping of fish oil increases the contact between the gas and liquid phases in the distillation kettle.

[0017] The present invention has the following beneficial effects: 1. The evaporation and purification device for fish oil processing and its use method are provided with multiple liquid receiving trays on the distillation kettle, which can circulate up and down on the liquid surface as the chain runs. When below the liquid surface, 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 above the liquid surface. After the liquid receiving tray leaves the liquid surface, the filter plate automatically fits with the first filter hole, and the fish oil gradually drips from top to bottom. The fish oil is fully in contact with the gas through splashing, slow dripping, etc., so as to achieve the effect of heat transfer and mass transfer, promote the exchange of heat and mass 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.

[0018] 2. The evaporation and purification device for fish oil processing and its use method take into account that some suspended matter on the surface of the fish oil may affect the evaporation of the lower liquid. Therefore, the liquid receiving plate is set not to leave the liquid surface directly, but to move horizontally along the liquid surface first. During the horizontal movement, the liquid receiving plate retains the suspended matter through the leakage holes on it and takes it away from the liquid surface. This also plays a role in accelerating evaporation.

[0019] 3. The evaporation and purification device for fish oil processing and its use method take into account that some sediments in the fish oil will settle on the bottom wall of the distillation kettle. On the one hand, this part of the sediment will affect the heat transfer upward from the heat source below, and on the other hand, it is also easy to cause the bottom to be scorched. Therefore, a scraper is installed at the lower end of the liquid receiving pan. When the liquid receiving pan moves horizontally along the bottom wall, it will also shovel up the sediments on the bottom wall, and at the same time play the role of stirring the liquid, further accelerating evaporation. When the liquid receiving pan moves horizontally along the bottom wall, it will automatically be clamped for easy shoveling, and when the liquid receiving pan moves horizontally along the liquid surface, it will automatically be in a relaxed state and can swing with the fluctuation of the liquid surface to facilitate contact with suspended matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 It is a schematic cross-sectional structural diagram of the present invention as a whole.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure inside the distillation kettle of the present invention.

[0023] Figure 4 For the present invention Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0024] Figure 5 It is a schematic structural diagram of the first guide groove and the second guide groove in the present invention.

[0025] Figure 6 It is a schematic structural diagram of the accelerated distillation mechanism in the present invention.

[0026] Figure 7 It is a schematic diagram of the explosion structure of the connecting mechanism in the present invention.

[0027] Figure 8 It is a structural schematic diagram of the cyclic moving mechanism in the present invention.

[0028] In the figure: 100, base; 200, distillation mechanism; 210, distillation kettle; 220, liquid inlet pipe; 230, first valve; 240, gooseneck; 250, heating chamber; 260, electric heating rod; 270, sewage 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, leak hole; 500, circulating movement mechanism; 510, chain; 52 0, 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 slide groove; 670, plug block; 680, socket; 690, connecting rod; 700, guiding mechanism; 710, sealing groove; 720, sealing strip; 721, relaxation section; 722, clamping section; 723, connecting section; 730, second round rod; 740, second slide groove; 750, first guide rod; 760, first guide groove; 770, second guide rod; 780, second guide groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0030] See also Figure 1-Figure 8 , an evaporation and purification device for fish oil processing, comprising a base 100, a distillation mechanism 200 and a condensation mechanism 300, wherein the distillation mechanism 200 comprises a distillation kettle 210 disposed on the base 100, and a liquid inlet pipe 220 is disposed on the distillation kettle 210, and the condensation mechanism 300 comprises a cooling tower 310 disposed on the base 100, and a spiral condensation pipe 350 is disposed in the cooling tower 310; The fish oil is injected into the distillation kettle 210 through the liquid inlet pipe 220 and then distilled to form fish oil vapor, which is then injected into the condensation pipe 350 for condensation to obtain purified fish oil; A plurality of accelerating distillation mechanisms 400 and a circulating moving mechanism 500 are arranged in the distillation kettle 210. The accelerating distillation mechanism 400 includes a liquid receiving tray 410 with an opening facing upward, and a plurality of first filter holes 420 are provided on the liquid receiving tray 410. The circulating moving mechanism 500 includes a chain 510, and the plurality of liquid receiving trays 410 are respectively installed on the chain 510 through a plurality of connecting mechanisms 600. During distillation, the chain 510 drives a plurality of liquid receiving pans 410 to circulate up and down on the liquid surface in the distillation kettle 210, thereby accelerating the contact between the gas and liquid phases in the distillation kettle 210 to improve the distillation efficiency. A first valve 230 is provided on the liquid inlet pipe 220, a gooseneck pipe 240 is provided at the upper end of the still 210, a heating chamber 250 is provided inside the still 210, the heating chamber 250 is filled with heat transfer oil, a plurality of electric heating rods 260 are provided in the heating chamber 250, a sewage pipe 270 is provided at the lower end of the still 210, and a second valve 280 is provided on the sewage pipe 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 is communicated with the gooseneck pipe 240, and a third valve 330 is provided 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, and the connecting pipe 320 and the liquid outlet pipe 340 are respectively communicated with both ends of the condensation pipe 350; The circular movement mechanism 500 further includes two first rotating shafts 520 and two second rotating shafts 530 rotatably disposed in the distillation kettle 210, wherein 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; The two first rotating shafts 520 are each provided with a first sprocket 540, the two second rotating shafts 530 are each provided with a second sprocket 550, the two first sprockets 540 and the two second sprockets 550 are all meshed with the chain 510, and a motor 560 is provided in the still 210, and the output shaft of the motor 560 is connected to one of the first rotating shafts 520; A scraper 450 is disposed at the lower end of the liquid receiving pan 410 . A plurality of third filter holes 460 are formed on the scraper 450 . The plurality of third filter holes 460 are matched with the plurality of first filter holes 420 one by one.

[0031] In this embodiment, the first valve 230 is opened, and the unpurified fish oil can be continuously injected into the distillation kettle 210 through the liquid inlet pipe 220. A liquid level meter 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. The electric heating rod 260 is powered on to generate heat, and the fish oil in the distillation kettle 210 is heated by oil bath heating.

[0032] The components in the fish oil are heated to gradually form steam, which enters the condensation pipe 350 through the gooseneck 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 steam condenses in the condensation pipe 350, and then the liquid of the corresponding component is collected through the liquid outlet pipe 340 to complete the evaporation purification.

[0033] In the still 210, the motor 560 drives one of the first rotating shafts 520 and the first sprocket 540 to rotate as the driving sprocket, and the other sprockets are driven, so that the chain 510 moves clockwise. Initially, the chain 510 is arranged in a rectangular shape through two first sprockets 540 and two second sprockets 550. A plurality of liquid receiving pans 410 are installed on the links of the chain 510, and circulate with the chain 510 in the still 210.

[0034] When the receiving pan 410 sinks below the liquid surface, some fish oil will be placed in the receiving pan 410. After rising from the liquid surface, the fish oil will gradually pass through the first filter hole 420 for filtration and then drip, gradually dripping from the receiving pan 410 located at the uppermost side to the receiving pan 410 at the lower side, and then dripping to the liquid surface. In this process, the liquid forms a certain liquid layer in the pan. This liquid layer provides sufficient contact area for the gas-liquid two phases, so that components with different boiling points can more effectively exchange heat and transfer mass, thereby achieving preliminary separation. At the same time, due to the full contact between the gas-liquid two phases in the receiving pan, impurities can be removed more effectively, thereby obtaining a purer product.

[0035] At the same time, a scraper 450 is installed under the liquid receiving pan 410. When the liquid receiving pan 410 moves to the left along the lower edge of the chain 510, the scraper 450 contacts the bottom wall of the distillation kettle 210, and can shovel up some sediment in the fish oil, which is beneficial to the transfer of heat on the lower side on the one hand, and can also stir the fish oil on the other hand.

[0036] The circulating movement mechanism 500 and the plurality of connecting mechanisms 600 are symmetrically arranged in two groups. Embodiment 2

[0037] This embodiment is an improvement on the first embodiment. For details, please refer to Figure 2-Figure 7 A filter plate 430 is slidably disposed in the liquid receiving tray 410, and a plurality of second filter holes 440 are formed on the filter plate 430, and the plurality of second filter holes 440 respectively match with the plurality of first filter holes 420 one by one; The connecting mechanism 600 includes a connecting seat 610 disposed on the chain 510, and a square rod 620 is disposed on the liquid receiving pan 410; A circular groove 630 is formed on the connecting seat 610, a first round rod 640 is slidably disposed in the circular groove 630, a limiting ring 650 is disposed on the first round rod 640, a first sliding groove 660 is formed on the first round rod 640, and the square rod 620 is slidably connected in the square rod 620; The first round rod 640 is provided with an insert block 670 and a connecting rod 690 , the square rod 620 is provided with an insert hole 680 , the insert hole 680 is fitted with the insert block 670 , and the connecting rod 690 is connected to the filter plate 430 .

[0038] In this embodiment, in order to make the fish oil contained in the liquid receiving pan 410 sink below the liquid surface reach above the liquid surface and then gradually drip down, a filter plate 430 is additionally provided at the lower side of the liquid receiving pan 410, and each hole on the liquid receiving pan 410 and the filter plate 430 corresponds to each other.

[0039] like Figure 4 As shown in , when the liquid receiving tray 410 moves above the liquid surface, 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 side. At this time, the first filter hole 420 and the second filter hole 440 are matched one by one, and the fish oil can finally drip through the first filter hole 420, the second filter hole 440, and the third filter hole 460.

[0040] When the liquid receiving pan 410 moves below the liquid surface, 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 hole 420 and the second filter hole 440 are misaligned, and the fish oil will remain on the liquid receiving pan 410. Embodiment 3

[0041] This embodiment is an improvement on the second embodiment. For details, please refer to Figure 2-Figure 8 , a leakage hole 470 is provided on the liquid receiving pan 410; The circulating moving mechanism 500 also 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, and the two third rotating shafts 570 are both provided with third sprockets 580, and the two third sprockets 580 are both engaged with the chain 510.

[0042] 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 and one below, in the middle position, so that the chain 510 forms a sideways U-shape, and the chain 510 from one of the first sprockets 540 to the third sprocket 580 located at the lower side corresponds to the liquid level.

[0043] The liquid receiving pan 410 is moved horizontally along the liquid surface. During the horizontal movement, the suspended matter on the liquid surface falls into the liquid receiving pan 410 through the leak hole 470 and is retained. The first filter hole 420 can filter the suspended matter to prevent it from dripping. In addition, the diameters of the three filter holes in total can be designed so that part of the suspended matter can be retained in the liquid receiving pan 410. A cleaning device can also be set at the upper position in the still 210, such as a suction nozzle, so that the suspended matter can be sucked away by the suction nozzle when the liquid receiving pan 410 moves horizontally through the uppermost position.

[0044] When the liquid receiving pan 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 plug block 670 is also aligned with the plug hole 680 and inserted. The two first round rods 640 will clamp the two square rods 620 and the liquid receiving pan 410 in the middle, making it easier for the scraper 450 on the liquid receiving pan 410 to shovel the sediment on the bottom wall.

[0045] When the liquid receiving pan 410 moves horizontally at the liquid surface, it can better contact the suspended matter. Figure 4 As shown, at this time, the square rod 620 is in the first slide groove 660, and the square rod 620 is not supported by the first round rod 640. The liquid receiving pan 410 and the square rod 620 can swing within a certain range with the fluctuation of the liquid level. Embodiment 4

[0046] This embodiment is an improvement on the third embodiment. For details, please refer to Figure 2-Figure 8 A guide mechanism 700 is also provided in the still 210. The guide mechanism 700 includes a sealing groove 710 provided on the inner wall of the still 210. A sealing strip 720 is slidably provided in the sealing groove 710. The first round rod 640 is provided on the sealing strip 720. The sealing 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, and the clamping section 722 is located below the liquid level in the distillation kettle 210. Two ends of the slack section 721 are connected to two ends of the clamping section 722 through the two connecting sections 723 respectively. The guide mechanism 700 further includes a second round rod 730. A second slide groove 740 is formed on the first round rod 640. The second round rod 730 is slidably connected in the second slide groove 740. The second round rod 730 is provided with a first guide rod 750 and a second guide rod 770, and the distillation kettle 210 is provided with a first guide groove 760 and a second guide groove 780. 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 consistent with the contour of the chain 510, and the first guide groove 760 is located on the upper side of the second guide groove 780.

[0047] In this embodiment: in order to control the liquid receiving pan 410 to be clamped by the two first round rods 640 below the liquid level, and to be able to swing with the liquid level fluctuation above the liquid level. In order to control the filter plate 430 to be offset from the first filter hole 420 below the liquid level to retain liquid, and to fit with the first filter hole 420 above the liquid level for liquid to drip. In order to control the liquid receiving pan 410 to always keep the opening facing upward, a guide mechanism 700 is provided.

[0048] Specifically, 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 slide groove 660 are rectangular, and the rotation of the first round rod 640 will drive the square rod 620 and the liquid receiving pan 410 to rotate. The second round rod 730 and the second slide groove 740 are also rectangular, and the rotation of the second round rod 730 can drive the first round rod 640 to rotate.

[0049] The first guide rod 750 and the second guide rod 770 installed on the second round rod 730 have the same shape, one is on the upper side and the other is on the lower side. The first guide groove 760 and the second guide groove 780 opened on the inner wall of the still 210 have the same shape and are equidistant from the outline of the chain 510. The first guide groove 760 is on the upper side, and the second guide groove 780 is set a certain distance downward along the first guide groove 760. The spacing between the first guide groove 760 and the second guide groove 780 is consistent with the spacing between the first guide rod 750 and the second guide rod 770. The first guide groove 760 and the second guide groove 780 are limited so that the first guide rod 750 and the second guide rod 770 will always keep the first guide rod 750 vertically on the top and the second guide rod 770 vertically on the bottom. Thereby, the second round rod 730, the first round rod 640, the square rod 620 and the liquid receiving tray 410 can automatically rotate and adjust their own positions in the process of moving with the chain 510, so that the opening of the liquid receiving tray 410 is always facing upward.

[0050] The sealing strip 720 slidably mounted on the inner wall of the still 210 plays a sealing role, so that the circulating moving mechanism 500 is not exposed to the liquid. In addition, the sealing strip 720 also plays a guiding role. Below the liquid level, the clamping section 722 is closer to the liquid. At this time, the sealing strip 720 drives the first round rod 640 to move rightward, 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.

[0051] In the upward movement process, when the first round rod 640 passes through the connecting section 723 and reaches the position of the loose section 721 , the first round rod 640 moves to the left, so that the liquid receiving tray 410 is loosened, and the filter plate 430 fits with the first filter hole 420 . Embodiment 5

[0052] For details, please refer to Figure 1-Figure 8 , a method for using an evaporation purification device for fish oil processing, comprising the following steps: S1, continuously injecting fish oil into the still 210 through the liquid inlet pipe 220 to maintain the liquid level in the still 210, then heating the heat-conducting oil in the heating chamber 250 through the electric heating rod 260 to distill the fish oil, and the liquid fish oil is evaporated and purified to form fish oil vapor, and 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 process, cooling water is continuously injected into the cooling tower 310 through the cooling water inlet 360, and the condensed liquid fish oil is collected through the liquid outlet pipe 340; S2. During the distillation process, the motor 560 drives the chain 510 to move the plurality of liquid receiving plates 410 in a circular motion in the distillation kettle 210. When the liquid receiving plates 410 are below the liquid level, the plurality of second filter holes 440 and the plurality of first filter holes 420 are in a misaligned state. At this time, the third filter holes 460 on the liquid receiving plates 410 shovel the sediment on the bottom wall of the distillation kettle 210 during the movement. Then the liquid receiving pan 410 continues to move to the liquid surface. At this time, the liquid receiving pan 410 moves along the liquid surface from one end to the other end of the distillation kettle 210, and collects the suspended matter on the liquid surface into the liquid receiving pan 410 through the leak hole 470; Finally, the liquid receiving plate 410 moves to a position above the liquid surface. At this time, the plurality of second filter holes 440 fit with the plurality of first filter holes 420. The fish oil in the liquid receiving plate 410 on the upper side gradually falls into the liquid receiving plate 410 on the lower side and then falls back to the liquid surface. The continuous dripping of the fish oil increases the contact between the gas and liquid phases in the distillation kettle 210.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An evaporation 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) comprises 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) comprises a cooling tower (310) arranged on the base (100), and a spiral condensation pipe (350) is arranged in the cooling tower (310); The fish oil is injected into the distillation kettle (210) through the liquid inlet pipe (220) and then distilled 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; The distillation kettle (210) is provided with a plurality of accelerated distillation mechanisms (400) and a circulating movement mechanism (500), wherein the accelerated distillation mechanism (400) comprises a liquid receiving tray (410) with an opening facing upward, and a plurality of first filter holes (420) are formed on the liquid receiving tray (410); the circulating movement mechanism (500) comprises a chain (510), and a plurality of the liquid receiving trays (410) are respectively mounted on the chain (510) via a plurality of connecting mechanisms (600); During distillation, the chain (510) is operated to drive the plurality of liquid receiving plates (410) to circulate up and down the liquid surface in the distillation kettle (210), thereby accelerating the contact between the gas and liquid phases in the distillation kettle (210) to improve the distillation efficiency.

2. The evaporation and purification device for fish oil processing according to claim 1, characterized in that: 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 provided inside the distillation kettle (210); the heating chamber (250) is filled with heat transfer oil; a plurality of electric heating rods (260) are provided in the heating chamber (250); a sewage pipe (270) is provided at the lower end of the distillation kettle (210); and a second valve (280) is provided on the sewage pipe (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) is in communication with the gooseneck pipe (240), and a third valve (330) is provided 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), and the connecting pipe (320) and the liquid outlet pipe (340) are respectively in communication with two ends of the condensing pipe (350).

3. The evaporation and purification device for fish oil processing according to claim 2, characterized in that: The circular movement mechanism (500) further comprises two first rotating shafts (520) and two second rotating shafts (530) rotatably disposed in the distillation kettle (210), the two first rotating shafts (520) being located below the liquid level in the distillation kettle (210), and the two second rotating shafts (530) being located above the liquid level in the distillation kettle (210); A first sprocket (540) is disposed on each of the two first rotating shafts (520), a second sprocket (550) is disposed on each of the two second rotating shafts (530), the two first sprockets (540) and the two second sprockets (550) are meshed with the chain (510), a motor (560) is disposed in the distillation kettle (210), and an output shaft of the motor (560) is connected to one of the first rotating shafts (520).

4. The evaporation and purification device for fish oil processing according to claim 3, characterized in that: A filter plate (430) is slidably disposed in the liquid receiving tray (410), and a plurality of second filter holes (440) are formed on the filter plate (430). The plurality of second filter holes (440) respectively fit in with the plurality of first filter holes (420) one by one.

5. The evaporation and purification device for fish oil processing according to claim 4, characterized in that: The connecting mechanism (600) comprises a connecting seat (610) arranged on the chain (510), and a square rod (620) is arranged on the liquid receiving pan (410); The connecting seat (610) is provided with a circular groove (630), 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 provided on the first round rod (640), and the square rod (620) is slidably connected in the square rod (620); The first round rod (640) is provided with an insert block (670) and a connecting rod (690), the square rod (620) is provided with an insert hole (680), the insert hole (680) fits with the insert block (670), and the connecting rod (690) is connected to the filter plate (430).

6. The evaporation and purification device for fish oil processing according to claim 5, characterized in that: The liquid receiving tray (410) is provided with a leakage hole (470); The circulating movement mechanism (500) also includes two third rotating shafts (570) rotatably arranged in the distillation kettle (210), wherein 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), and the two third rotating shafts (570) are both provided with third sprockets (580), and the two third sprockets (580) are both engaged with the chain (510).

7. The evaporation and purification device for fish oil processing according to claim 6, characterized in that: A guide mechanism (700) is also provided in the distillation kettle (210), the guide mechanism (700) comprising a sealing groove (710) provided on the inner wall of the distillation kettle (210), a sealing strip (720) being slidably provided in the sealing groove (710), and the first round rod (640) being provided on the sealing strip (720); The sealing strip (720) comprises a relaxation section (721), a clamping section (722) and two connecting sections (723); the relaxation 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 two ends of the relaxation section (721) are connected to two ends of the clamping section (722) via two connecting sections (723), respectively.

8. The evaporation and purification device for fish oil processing according to claim 7, characterized in that: The guide mechanism (700) further comprises a second round rod (730), the first round rod (640) is provided with a second sliding groove (740), 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), and a first guide groove (760) and a second guide groove (780) are provided in the distillation kettle (210). The first guide rod (750) is slidably connected to the first guide groove (760), and the second guide rod (770) is slidably connected to the second guide groove (780). The shapes of the first guide groove (760) and the second guide groove (780) are consistent with the contour of the chain (510), and the first guide groove (760) is located on the upper side of the second guide groove (780).

9. The evaporation purification device for fish oil processing according to claim 8, characterized in that: A scraper (450) is provided at the lower end of the liquid receiving tray (410), and a plurality of third filter holes (460) are provided on the scraper (450), and the plurality of third filter holes (460) respectively fit in with the plurality of first filter holes (420) one by one.

10. The method for using the evaporation purification device for fish oil processing according to claim 9, characterized in that: The steps include: S1, continuously injecting fish oil into the still (210) through the liquid inlet pipe (220) to maintain the liquid level in the still (210), then heating the heat transfer oil in the heating chamber (250) through the electric heating rod (260) to distill the fish oil, and the liquid fish oil is evaporated and purified to form fish oil vapor, and 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 process, cooling water is continuously injected into the cooling tower (310) through the cooling water inlet (360), and the condensed liquid fish oil is collected through the liquid outlet pipe (340); S2. During the distillation process, the motor (560) drives the chain (510) to move the plurality of liquid receiving plates (410) in a circular motion in the distillation kettle (210). When the liquid receiving plates (410) are below the liquid level, the plurality of second filter holes (440) and the plurality of first filter holes (420) are in a misaligned state. At this time, the third filter holes (460) on the liquid receiving plates (410) shovel sediment on the bottom wall of the distillation kettle (210) during the movement. Then, the liquid receiving pan (410) continues to move to the liquid surface. At this time, the liquid receiving pan (410) moves along the liquid surface 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 pan (410) through the leak hole (470); Finally, the liquid receiving plate (410) moves to a position above the liquid surface. At this time, the plurality of second filter holes (440) fit with the plurality of first filter holes (420), and the fish oil in the liquid receiving plate (410) located on the upper side gradually falls into the liquid receiving plate (410) located on the lower side and then falls back to the liquid surface. The continuous dripping of the fish oil increases the contact between the gas and liquid phases in the distillation kettle (210).

Images