A method for preparing dha algal oil

Abstract

The present application relates to the technical field of algal oil extraction, and particularly relates to a preparation method of DHA algal oil, which aims at the problems of great cleaning difficulty and long water draining time in the extraction of algal oil in the prior art, and proposes the following scheme, which comprises the following steps: S1, selecting qualified microalgae, then cleaning and removing impurities to obtain qualified raw materials; S2, filtering the cleaned microalgae to remove excess water in the microalgae; S3, performing wall breaking treatment on the drained microalgae to obtain algal oil; and S4, centrally collecting the prepared algal oil and waiting for subsequent further deep processing.The present application can conveniently and quickly spread the raw materials, and then automatically perform washing, water draining and automatic collection, thereby effectively improving the purity of the product, reducing the processing difficulty and improving the work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of algal oil extraction, and in particular to a preparation method of DHA algal oil. BACKGROUND

[0002] DHA, also known as "brain gold", is difficult for the human body to synthesize, and has a high level in marine algae, so DHA algal oil is often extracted from microalgae in the sea.

[0003] Due to the special shape and structure of algal plants, traditional flushing is difficult to clean completely, and manual cleaning is too labor-intensive and low in efficiency. The cleaning equipment in the prior art is to put a large amount of microalgae together and then wash them with water. This method can not thoroughly clean the impurities in the microalgae stacked together, which affects the purity of the algal oil extraction. In addition, it takes a lot of time to drain the water from the stacked microalgae after cleaning, which affects the improvement of work efficiency. Therefore, the present application provides a preparation method of DHA algal oil. SUMMARY

[0004] The preparation method of DHA algal oil provided by the present application solves the problems of difficult cleaning and time-consuming water draining in the prior art algal oil extraction.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] A preparation method of DHA algal oil, comprising the following steps:

[0007] S1, selecting qualified microalgae, then cleaning and removing impurities to obtain qualified raw materials;

[0008] S2, filtering the cleaned microalgae to remove excess water from the microalgae;

[0009] S3, breaking the wall of the drained microalgae to obtain algal oil;

[0010] S4, collecting the prepared algal oil and waiting for further deep processing.

[0011] A preparation device of DHA algal oil, characterized in that it comprises:

[0012] A cleaning mechanism comprising a fixed tube, a filter screen sleeved on the outer periphery of the fixed tube, a connecting gear ring sleeved on the outer circle of the filter screen, a limiting frame arranged on the top surface of the filter screen, and a water spraying assembly installed above the limiting frame, the filter screen is rotatably connected with the fixed tube, and the outer periphery of the fixed tube is provided with an inlet, the limiting frame is coaxially arranged with the fixed tube, and the outer periphery of the fixed tube is sleeved with a water receiving tray located directly below the filter screen;

[0013] The feeding mechanism comprises a feeding pipe arranged inside the limiting frame, a feeding hopper fixed on the top of the feeding pipe, and a feeding roller installed inside the feeding pipe, and a feeding channel is formed between the outer periphery of the feeding roller and the inner wall of one side of the feeding pipe.

[0014] The scraping mechanism is installed on the top of the filter screen and is used for conveying the material on the top surface of the filter screen from the feeding port to the inside of the fixed pipe when the filter screen rotates.

[0015] The wall breaking mechanism comprises a wall breaking box, a wall breaking pipe fixed on the inner wall of the top of the wall breaking box, two crushing rollers rotatably connected in the wall breaking pipe, and a partition plate fixed inside the wall breaking box, the fixed pipe is fixed on the top of the wall breaking box, and the bottom of the fixed pipe extends to the inside of the wall breaking pipe, one end of each of the two crushing rollers is fixed with a rotating shaft, and one end of each of the two rotating shafts extends to the outside of the wall breaking pipe, the partition plate is located below the wall breaking pipe, and a feeding slot is formed in the partition plate.

[0016] Through the above technical scheme, the raw materials can be spread flat, and then automatically washed, drained and automatically collected, which not only effectively improves the purity of the product, but also reduces the processing difficulty and improves the work efficiency.

[0017] As a further improvement of the above scheme, the driving assembly comprises a driving shaft rotatably connected to the outer periphery of the limiting frame, a driving gear fixed on one end of the driving shaft, and a motor two installed on the outer periphery of the limiting frame, the other end of the driving shaft extends to the inside of the feeding pipe and is fixedly connected to one end of the feeding roller, the driving shaft is coaxially arranged with the feeding roller, and the outer periphery of the output shaft of the motor two is sleeved with a fixed gear engaged with the driving gear, and the driving gear is engaged with the top surface of the connecting gear ring.

[0018] Through the above technical scheme, the filter screen can be driven to rotate while driving the feeding roller to rotate, so that the raw materials can be spread flat on the top surface of the filter screen.

[0019] As a further improvement of the above scheme, the limiting frame is provided with a mounting slot for mounting the scraping mechanism at a position opposite to the feeding port, the bottom of the feeding port and the bottom of the mounting slot are flush with the top surface of the filter screen, the scraping mechanism comprises a blocking plate fixed on the outer wall of one side of the notch, a conveying belt installed on the outer wall of the front surface of the blocking plate, and a linkage assembly for driving the conveying belt to rotate, one end of the blocking plate and one end of the conveying belt extend to the outside of the limiting frame, the other end of the blocking plate and the other end of the conveying belt extend to the inside of the fixed pipe through the feeding port, the bottom surface of the blocking plate abuts against the top surface of the filter screen, a plurality of scraping pieces are fixed on the outer periphery of the conveying belt, and when the scraping pieces rotate to below the conveying belt, the bottom of the scraping pieces below the conveying belt abuts against the top surface of the filter screen, and the linkage assembly is in transmission connection with the gear ring.

[0020] Through the technical scheme, the filter screen top surface raw material can be scraped into the fixed tube through the rotation of the filter screen.

[0021] As a further improvement of the above scheme, the linkage assembly comprises a connecting shaft and a driving shaft rotatably connected to the back of the material blocking plate, the bottom of the connecting shaft is fixed with a connecting gear, the connecting gear is fixedly connected with the outer ring of the connecting gear ring, the top of the connecting shaft is fixed with a driving bevel gear, the inner ring of the conveying belt is provided with two conveying rollers rotatably connected to the material blocking plate, one end of the driving shaft is fixedly connected with one end of one of the conveying rollers, the other end of the driving shaft is fixed with a driven bevel gear meshing with the driving bevel gear.

[0022] Through the technical scheme, the conveying belt is driven to rotate through the rotation of the connecting gear ring.

[0023] As a further improvement of the above scheme, the water pan is provided with a scraper one, one end of the scraper one abuts against the inner wall of the water pan away from the fixed tube, the other end of the scraper one abuts against the outer ring of the fixed tube, and the top of the scraper one is fixedly connected with the bottom surface of the connecting gear ring through a fixed rod, and the bottom of one side of the water pan is provided with a drain port.

[0024] Through the technical scheme, the impurities in the water pan can be scraped into the drain port through the rotation of the scraper one driven by the rotation of the connecting gear ring.

[0025] As a further improvement of the above scheme, the water spraying assembly is located on one side of the material falling pipe, and the water spraying assembly comprises a water conveying pipe and a plurality of branch pipes installed on the water conveying pipe, the plurality of branch pipes are arranged along the radial direction of the filter screen, and the bottom surface of the plurality of branch pipes is installed with a plurality of nozzles facing the top surface of the filter screen.

[0026] Through the technical scheme, the raw material laid on the top surface of the filter screen can be washed.

[0027] As a further improvement of the above scheme, the secondary wall breaking mechanism is further installed in the wall breaking tank, the secondary wall breaking mechanism comprises a bottom plate rotatably connected to the bottom of the wall breaking tank, a rolling roller rotatably connected to the inner wall of the wall breaking tank, a material conveying assembly installed on the wall breaking tank, and a transmission assembly installed on the wall breaking tank, the rolling roller is arranged along the radial direction of the wall breaking tank, and the bottom surface of the rolling roller abuts against the top surface of the bottom plate, the transmission assembly comprises a fixed shaft and a linkage shaft rotatably connected to the outer periphery of the wall breaking tank, and a transmission gear ring sleeved on the outer periphery of the bottom plate, one end of one of the rotating shafts extends to the outside of the wall breaking tank and is fixed with a sprocket one, one end of the fixed shaft is fixed with a sprocket two, and the sprocket one and the sprocket two are drivingly connected through a chain, the outer periphery of the fixed shaft is sleeved with a driving gear, the outer periphery of the linkage shaft is sleeved with a driven gear meshing with the driving gear, and one end of the linkage shaft extends to the inside of the wall breaking tank and is fixed with one end of the rolling roller.

[0028] Through the above technical scheme, the rotation of the fixed shaft can drive the secondary wall breaking mechanism to operate, so that the raw material after the first wall breaking is subjected to wall breaking operation again, and the waste of the raw material is avoided.

[0029] As a further improvement of the above scheme, the top surface of the bottom plate is fixed with a transmission shaft, the material conveying assembly comprises a discharge pipe fixed to the bottom of the wall breaking tank and an auger rotatably connected in the discharge pipe, the discharge pipe is arranged along the radial direction of the wall breaking tank, and one end of the discharge pipe extends to the outside of the wall breaking tank, one side of the discharge pipe is provided with a feeding slot arranged along the length direction, and the bottom of the feeding slot is provided with an inclined slope abutting against the top surface of the bottom plate, one end of the auger extends to the outside of the discharge pipe and is fixed with a linkage gear, and the outer periphery of the transmission shaft is sleeved with a power gear meshing with the linkage gear.

[0030] Through the above technical scheme, the rotation of the transmission shaft can drive the auger to rotate, and then the algal oil entering the discharge pipe can be conveyed out through the rotation of the auger.

[0031] As a further improvement of the above scheme, the top surface of the partition plate is a conical surface protruding upward, the top of the transmission shaft extends above the partition plate and is fixed with a scraper two, and the bottom surface of the scraper two abuts against the top surface of the partition plate.

[0032] Through the above technical scheme, the rotation of the scraper two can scrape the raw material falling on the top surface of the partition plate into the material falling slot, so as to avoid the accumulation of the raw material on the top surface of the partition plate.

[0033] A DHA algal oil gel candy, comprising the following components in percentage by weight: DHA algal oil 20-30%, arachidonic acid oil 20-30%, gelatin 10-15%, flaxseed oil 10-15%, water 10-15%, glycerol 3-7%, sorbitol liquid 0.4-1%, sweet orange oil 1-2%.

[0034] Compared with the prior art, the present application has the beneficial effects that:

[0035] 1. Through the cooperation between the cleaning mechanism, the feeding mechanism and the scraping mechanism, the microalgae to be processed can be laid flat on the surface of the filter screen, and then the laid microalgae are washed with water, and after the water in the microalgae is drained, the microalgae are scraped into the fixed pipe by the scraping mechanism for discharge, so that the impurities on the microalgae are cleaned more fully, and the subsequent processing process needs to clean the impurities again, thereby reducing the difficulty of subsequent processing.

[0036] 2. Through the cooperation between the wall breaking mechanism and the secondary wall breaking mechanism, the wall breaking of the microalgae can be fully guaranteed, thereby helping to extract the algal oil in the raw materials, avoiding the waste of the raw materials, and the setting of the material conveying assembly also facilitates the collection of the algal oil. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a front view of the present application;

[0038] Figure 2 is Figure 1 a structure diagram of the wall breaking box and the crushing roller in the second wall breaking mechanism;

[0039] Figure 3 is Figure 1 a perspective view of the limiting frame, the material blocking plate and the scraping mechanism;

[0040] Figure 4 is a top view of the limiting frame, the scraping mechanism and the filter screen;

[0041] Figure 5 is Figure 4 an enlarged view of A in the second wall breaking mechanism;

[0042] Figure 6 is a front view of the present application;

[0043] Figure 7 is Figure 1 a structure diagram of the material falling pipe and the material conveying roller in the material conveying mechanism;

[0044] Figure 8 is Figure 1 a right view of the material discharging pipe in the material discharging mechanism.

[0045] MAIN SYMBOL EXPLANATION:

[0046] 1, limit frame; 2, fixed tube; 3, blanking pipe; 4, feed hopper; 5, filter screen; 6, baffle plate; 7, conveyor belt; 8, scraping piece; 9, connecting shaft; 10, connecting gear; 11, scraper I; 12, rotating shaft; 13, fixed shaft; 14, driven gear; 15, transmission gear; 16, scraper II; 17, blanking groove; 18, rolling roller; 19, transmission shaft; 20, linkage gear; 21, auger; 22, discharge pipe; 23, material conveying roller; 24, drive gear; 25, connecting gear; 26, water pan; 27, wall breaking pipe; 28, crushing roller; 29, wall breaking box; 30, feed inlet; 31, bottom plate; 32, motor I; 33, water delivery pipe; 34, branch pipe; 35, driving bevel gear; 36, driving shaft; 37, feed groove; 38, partition plate. DETAILED DESCRIPTION

[0047] In the following, the application will be further described with reference to the drawings and specific embodiments, it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0048] Example 1

[0049] Please combine Figures 1-8 The DHA algal oil preparation device of the embodiment comprises:

[0050] The cleaning mechanism comprises a fixed tube 2, a filter screen 5 sleeved on the outer periphery of the fixed tube 2, a connecting gear 25 sleeved on the outer circle of the filter screen 5, a limit frame 1 arranged on the top surface of the filter screen 5, and a water spraying assembly arranged above the limit frame 1. The limit frame 1 and the filter screen 5 are both circular structures. The outer circle and the top surface of the connecting gear 25 are both provided with a gear groove. The filter screen 5 is rotationally connected with the fixed tube 2. An inlet 30 is formed on the outer periphery of the fixed tube 2. The limit frame 1 is coaxially arranged with the fixed tube 2. A water pan 26 is sleeved on the outer periphery of the fixed tube 2 and located directly below the filter screen 5. The water spraying assembly is located on one side of the blanking pipe 3. The water spraying assembly comprises a water delivery pipe 33 and a plurality of branch pipes 34 arranged on the water delivery pipe 33. The plurality of branch pipes 34 are arranged along the radial direction of the filter screen 5. A plurality of nozzles are arranged on the bottom surface of the plurality of branch pipes 34 and face the top surface of the filter screen 5. The water delivery pipe 33 is connected with an external tap water pipe. A valve is arranged on the water delivery pipe 33. When the raw material is placed on the top surface of the filter screen 5, the raw material is rotated to be directly below the water spraying assembly with the rotation of the filter screen 5. The valve is opened. At this time, water is sprayed from the nozzles of the water spraying assembly, so as to wash the raw material on the top surface of the filter screen 5, thereby automatically completing the process of washing the raw material. The washed raw material is gradually drained of water during the rotation of the filter screen 5;

[0051] The feeding mechanism comprises a blanking tube 3 arranged inside the limiting frame 1, a feeding hopper 4 fixed on the top of the blanking tube 3, and a feeding roller 23 installed inside the blanking tube 3, and a feeding channel is formed between the outer periphery of the feeding roller 23 and the inner wall of one side of the blanking tube 3, a connecting groove is arranged on one side of the blanking tube 3 and matched with the feeding roller 23, one side of the feeding roller 23 extends to the outside of the blanking tube 3 through the connecting groove, so that the other side of the feeding roller 23 and the inner wall of the side of the blanking tube 3 opposite to the connecting groove form a feeding channel, a driving assembly for driving the feeding roller 23 and the connecting gear ring 25 to rotate is installed on the outer periphery of the limiting frame 1, the driving assembly comprises a driving shaft rotatably connected to the outer periphery of the limiting frame 1, a driving gear 24 fixed on one end of the driving shaft, and a motor 2 installed on the outer periphery of the limiting frame 1, the other end of the driving shaft extends to the inside of the blanking tube 3 and is fixedly connected with one end of the feeding roller 23, the driving shaft is coaxially arranged with the feeding roller 23, the outer periphery of the output shaft of the motor 2 is sleeved with a fixed gear engaged with the driving gear 24, the driving gear 24 is engaged with the top surface of the connecting gear ring 25, the motor 2 drives the driving gear 24 to rotate after rotating, so that the feeding roller 23 rotates, the driving gear 24 drives the connecting gear ring 25 to rotate at the same time, so that the filter screen 5 rotates, and the feeding roller 23 can gradually convey the raw materials in the blanking tube 3 out after rotating, so that the raw materials can be laid on the top surface of the filter screen 5 while the filter screen 5 rotates, and the situation that the raw materials are accumulated on the top surface of the filter screen 5 and cause incomplete cleaning is avoided.

[0052] The scraping mechanism is arranged on the top of the filter screen 5 and is used for conveying the material on the top surface of the filter screen 5 from the feeding port 30 to the inside of the fixed tube 2 when the filter screen 5 rotates. The limiting frame 1 is provided with a mounting groove for mounting the scraping mechanism at a position opposite to the feeding port 30. The bottom of the feeding port 30 and the bottom of the mounting groove are flush with the top surface of the filter screen 5. The scraping mechanism comprises a material blocking plate 6 fixed on the outer wall of one side of the gap, a conveying belt 7 mounted on the outer wall of the front surface of the material blocking plate 6, and a linkage assembly for driving the conveying belt 7 to rotate. One end of the material blocking plate 6 and one end of the conveying belt 7 extend to the outside of the limiting frame 1. The other end of the material blocking plate 6 and the other end of the conveying belt 7 extend to the inside of the fixed tube 2 through the feeding port 30. The bottom surface of the material blocking plate 6 abuts against the top surface of the filter screen 5. The outer ring of the conveying belt 7 is fixed with a plurality of scraping pieces 8. When the scraping pieces 8 rotate to the lower side of the conveying belt 7, the bottom of the scraping pieces 8 located below the conveying belt 7 abuts against the top surface of the filter screen 5. The linkage assembly is in transmission connection with the gear ring. The linkage assembly comprises a connecting shaft 9 rotationally connected to the back surface of the material blocking plate 6 and a driving shaft 36. The bottom of the connecting shaft 9 is fixed with a connecting gear 10. The connecting gear 10 is fixedly connected to the outer ring of the connecting gear ring 25. The top of the connecting shaft 9 is fixed with a driving bevel gear 35. The inner ring of the conveying belt 7 is provided with two conveying rollers rotationally connected to the material blocking plate 6. One end of the driving shaft 36 is fixedly connected to one of the conveying rollers. The other end of the driving shaft 36 is fixed with a driven bevel gear meshing with the driving bevel gear 35. When the connecting gear ring 25 rotates, the connecting gear 10 is driven to rotate. After the connecting gear 10 rotates, the connecting shaft 9 is driven to rotate. The connecting shaft 9 drives the driving shaft 36 to rotate, so that the conveying belt 7 rotates under the driving of the connecting gear ring 25. In the process of rotating the filter screen 5, the raw materials drained of water are gradually turned to the material blocking plate 6 and finally blocked by the material blocking plate 6. After the conveying belt 7 rotates, the raw materials blocked by the material blocking plate 6 can be scraped into the feeding port 30 by the scraping pieces 8, so that the rotation of the filter screen 5 itself can complete the discharging operation.

[0053] The breaking mechanism comprises a breaking box 29, a breaking pipe 27 fixed to the inner wall of the top of the breaking box 29, two crushing rollers 28 rotationally connected in the breaking pipe 27, and a partition plate 38 fixed to the inside of the breaking box 29. The fixed tube 2 is fixed to the top of the breaking box 29, and the bottom of the fixed tube 2 extends to the inside of the breaking pipe 27. One end of each of the two crushing rollers 28 is fixed with a rotating shaft 12, and one end of each of the two rotating shafts 12 extends to the outside of the breaking pipe 27. Two motors I are mounted in the inside of the breaking box 29. The output shafts of the two motors I are in transmission connection with the two rotating shafts 12, respectively. The partition plate 38 is located below the breaking pipe 27, and the partition plate 38 is provided with a dropping groove 17. The raw materials falling into the fixed tube 2 fall into the breaking pipe 27, and then fall between the two crushing rollers 28. After the two motors I are started, the two crushing rollers 28 are driven to rotate, so that the raw materials falling between the two crushing rollers 28 are crushed, and the breaking process is completed.

[0054] The implementation principle of the embodiment is that: during preparation, qualified raw materials are first selected and then put into the feeding hopper 4, then the motor one 32 and the motor two are started, and the valve is opened, the raw materials in the feeding hopper 4 enter the dropping pipe 3, and then gradually discharged from the conveying channel under the rotation of the conveying roller 23 and laid on the top surface of the filter screen 5, the filter screen 5 rotates to rotate the raw materials to the lower side of the water spraying assembly, so that the raw materials are washed by the water sprayed by the water spraying assembly, and the washed raw materials gradually drain water during the rotation of the filter screen 5;

[0055] The raw materials drained of water are gradually diverted to the blocking plate 6 during the rotation of the filter screen 5, and finally blocked by the blocking plate 6, and the connecting gear ring 25 rotates at the same time and also drives the conveyor belt 7 to rotate through the linkage assembly, so that the raw materials blocked by the blocking plate 6 can be pushed into the fixed pipe 2 by the rotating scraper 8.

[0056] The raw materials entering the fixed pipe 2 finally fall between the two crushing rollers 28, the two crushing rollers 28 are driven to rotate by the two motors one, so as to crush the raw materials falling between the two crushing rollers 28, complete the process of breaking the wall, and finally the crushed raw materials are discharged from the dropping chute 17.

[0057] Embodiment 2

[0058] In combination Figure 1 , the further improvement of the embodiment based on embodiment 1 is that the water collecting tray 26 is provided with a circular groove on the top surface, the water collecting tray 26 is provided with a scraper one 11 on the inner side, one end of the scraper one 11 abuts against the inner wall of the water collecting tray 26 away from the fixed pipe 2, the other end of the scraper one 11 abuts against the outer circle of the fixed pipe 2, the bottom surface of the scraper one 11 abuts against the bottom surface of the groove, the top of the scraper one 11 is fixed to the bottom surface of the connecting gear ring 25 through a fixed rod, and a drainage port is formed in the bottom of one side of the water collecting tray 26.

[0059] The implementation principle of the embodiment is that: after the connecting gear ring 25 rotates, the scraper one 11 will rotate synchronously with it, so as to scrape the water stains in the water collecting tray 26 to the drainage port, avoiding the water or other impurities remaining on the water collecting tray.

[0060] Embodiment 3

[0061] In combination Figure 1 , Figure 2 , Figure 6 and Figure 8The further improvement of the present embodiment is based on the embodiment 1, wherein the secondary wall breaking mechanism is further installed in the wall breaking box 29, the secondary wall breaking mechanism comprises a bottom plate 31 rotatably connected to the bottom of the wall breaking box 29, a rolling roller 18 rotatably connected to the inner wall of the wall breaking box 29, a material conveying assembly installed on the wall breaking box 29 and a transmission assembly installed on the wall breaking box 29, the rolling roller 18 is arranged along the radial direction of the wall breaking box 29, and the bottom surface of the rolling roller 18 abuts against the top surface of the bottom plate 31, the transmission assembly comprises a fixed shaft 13 and a linkage shaft rotatably connected to the outer periphery of the wall breaking box 29, and a transmission gear ring 15 sleeved on the outer periphery of the bottom plate 31, the top surface of the transmission gear ring 15 is provided with a gear slot, one end of one of the rotating shafts 12 extends to the outside of the wall breaking box 29 and is fixed with a chain wheel one, one end of the fixed shaft 13 is fixed with a chain wheel two, and the chain wheel one and the chain wheel two are drivingly connected through a chain, the outer periphery of the fixed shaft 13 is sleeved with a driving gear, the outer periphery of the linkage shaft is sleeved with a driven gear 14 meshing with the driving gear, one end of the linkage shaft extends to the inside of the wall breaking box 29 and is fixed with one end of the rolling roller 18, the driven gear 14 meshes with the top surface of the transmission gear ring 15, the rotating shaft 12 rotates and drives the fixed shaft 13 to rotate through the chain, the fixed shaft 13 rotates and drives the driving gear to rotate, the driving gear drives the driven gear 14 to rotate, so that the rolling roller 18 rotates, and the driven gear 14 also drives the bottom plate 31 to rotate, so that the raw materials falling on the bottom plate 31 are rotated to the lower side of the rolling roller 18 and then are rolled by the rolling roller 18, thereby completing the secondary wall breaking process.

[0062] The top surface of the bottom plate 31 is fixed with a transmission shaft 19, the material conveying assembly comprises a discharge pipe 22 fixed to the bottom of the wall breaking box 29 and an auger 21 rotatably connected in the discharge pipe 22, the discharge pipe 22 is arranged along the radial direction of the wall breaking box 29, and one end of the discharge pipe 22 extends to the outside of the wall breaking box 29, one side of the discharge pipe 22 is provided with a feeding slot 37 arranged along the length direction, and the bottom of the feeding slot 37 is provided with an inclined slope abutting against the top surface of the bottom plate 31, one end of the auger 21 extends to the outside of the discharge pipe 22 and is fixed with a linkage gear 20, the outer periphery of the transmission shaft 19 is sleeved with a power gear meshing with the linkage gear 20, since the discharge pipe 22 does not rotate with the transmission shaft 19, the power gear rotates synchronously with the transmission shaft 19 when the transmission shaft 19 rotates, so as to drive the linkage gear 20 to rotate, the linkage gear 20 rotates and drives the auger 21 to rotate, so as to convey the algal oil in the discharge pipe 22 out through the discharge pipe 22.

[0063] The top surface of the partition plate 38 is a conical surface protruding upward, the top of the transmission shaft 19 extends above the partition plate 38 and is fixed with a scraper two 16, the bottom surface of the scraper two 16 abuts against the top surface of the partition plate 38, the transmission shaft 19 rotates and drives the scraper two 16 to rotate, so as to scrape the raw materials falling on the top surface of the partition plate 38 into the material falling slot 17.

[0064] The implementation principle of the embodiment is that after the rotating shaft 12 rotates, the crushing roller 18 and the bottom plate 31 are driven to rotate simultaneously by the transmission assembly, the bottom plate 31 rotates, and then the raw materials falling on the top are rotated to the bottom of the crushing roller 18, and then are crushed by the crushing roller 18, so that the secondary breaking process is completed, the crushed raw materials continue to rotate with the bottom plate 31, and then are blocked by the discharge pipe 22, and finally enter the discharge pipe 22 through the feeding groove 37, and the bottom plate 31 rotates simultaneously to drive the transmission shaft 19 to rotate, the transmission shaft 19 rotates to drive the auger 21 to rotate, the auger 21 rotates to gradually transport the raw materials in the discharge pipe 22 to the outside of the discharge pipe 22, and thus the discharging process is automatically completed, and the transmission shaft 19 rotates to drive the scraper 16 to rotate, so that the raw materials falling on the top surface of the partition plate 38 are scraped into the dropping groove 17, and the raw materials are prevented from accumulating on the top surface of the partition plate 38.

[0065] Embodiment 4

[0066] In combination Figures 1-8 A method for preparing DHA algal oil, comprising the following steps:

[0067] S1, selecting qualified microalgae, then washing and removing impurities, removing broken and rotten raw materials, and selecting impurities such as weeds and stones mixed in the raw materials, and finally obtaining qualified raw materials, and then washing again;

[0068] S2, spreading the washed raw material microalgae to drain excess water, and then collecting the drained raw materials;

[0069] S3, putting the collected drained microalgae into a broken wall box for broken wall treatment, so that the source quality in the microalgae flows out, thereby obtaining algal oil;

[0070] S4, filtering and collecting the prepared algal oil for further deep processing.

[0071] Embodiment 5

[0072] In combination Figures 1-8 A DHA algal oil gel candy, comprising the following components by weight percentage: DHA algal oil 20-30%, arachidonic acid oil 20-30%, gelatin 10-15%, flaxseed oil 10-15%, water 10-15%, glycerol 3-7%, sorbitol liquid 0.4-1%, sweet orange oil 1-2%, and the above materials are uniformly mixed to form a gel candy, which can be directly eaten when eaten.

[0073] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art on the basis of the present application are within the scope of the present application.

Claims

1. An apparatus for producing DHA algal oil, characterized by, include: A cleaning mechanism includes a fixed pipe, a filter screen sleeved around the outer periphery of the fixed pipe, a connecting toothed ring sleeved around the outer ring of the filter screen, a limiting frame set on the top surface of the filter screen, and a water spraying assembly installed above the limiting frame. The filter screen is rotatably connected to the fixed pipe, and a feed inlet is provided on the outer periphery of the fixed pipe. The limiting frame is coaxially arranged with the fixed pipe, and a water receiving tray located directly below the filter screen is sleeved around the outer periphery of the fixed pipe. The feeding mechanism includes a discharge pipe disposed inside the limiting frame, a feeding hopper fixed to the top of the discharge pipe, and a conveying roller installed inside the discharge pipe. The outer periphery of the conveying roller and one inner wall of the discharge pipe form a conveying channel. A drive assembly for driving the conveying roller and the connecting gear ring to rotate is installed on the outer periphery of the limiting frame. A scraping mechanism is installed on top of the filter screen and is used to transport the material on the top surface of the filter screen from the feed inlet to the inside of the fixed tube when the filter screen rotates. The scraping mechanism includes a baffle plate fixed on the outer wall of one side of the notch, a conveyor belt installed on the outer wall of the front of the baffle plate, and a linkage component for driving the conveyor belt to rotate. One end of the baffle plate and one end of the conveyor belt extend to the outside of the limiting frame, and the other end of the baffle plate and the other end of the conveyor belt extend to the inside of the fixed tube through the feed inlet. The bottom surface of the baffle plate abuts against the top surface of the filter screen. Multiple scraping blades are fixed on the outer ring of the conveyor belt, and when the scraping blades rotate to the bottom of the conveyor belt, the bottom of the scraping blades located below the conveyor belt abuts against the top surface of the filter screen. The linkage component is connected to the gear ring drive. The cell wall breaking mechanism includes a cell wall breaking box, a cell wall breaking tube fixed to the inner wall of the top of the cell wall breaking box, two crushing rollers rotatably connected inside the cell wall breaking tube, and a partition plate fixed to the inner side of the cell wall breaking box. The fixed tube is fixed to the top of the cell wall breaking box, and the bottom of the fixed tube extends to the inner side of the cell wall breaking tube. One end of each of the two crushing rollers is fixed with a rotating shaft, and one end of each of the two rotating shafts extends to the outer side of the cell wall breaking tube. The partition plate is located below the cell wall breaking tube, and a material discharge chute is provided on the partition plate. The cell wall breaking box is also equipped with a secondary cell wall breaking mechanism. The secondary cell wall breaking mechanism includes a base plate rotatably connected to the bottom of the cell wall breaking box, a crushing roller rotatably connected to the inner wall of the cell wall breaking box, a material conveying assembly installed on the cell wall breaking box, and a transmission assembly installed on the cell wall breaking box. The crushing roller is arranged along the radial direction of the cell wall breaking box, and the bottom surface of the crushing roller abuts against the top surface of the base plate.

2. The device for preparing DHA algal oil according to claim 1, characterized in that, The drive assembly includes a drive shaft rotatably connected to the outer periphery of the limiting frame, a drive gear fixed to one end of the drive shaft, and a second motor mounted on the outer periphery of the limiting frame. The other end of the drive shaft extends to the inside of the discharge tube and is fixedly connected to one end of the conveying roller. The drive shaft and the conveying roller are coaxially arranged. A fixed gear that meshes with the drive gear is sleeved on the outer periphery of the output shaft of the second motor. The drive gear meshes with the top surface of the connecting gear ring.

3. The device for preparing DHA algal oil according to claim 1, characterized in that, The limiting frame has an installation groove for installing the scraping mechanism at the position opposite the feed inlet. The bottom of the feed inlet and the bottom of the installation groove are flush with the top surface of the filter screen.

4. The device for preparing DHA algal oil according to claim 3, characterized in that, The linkage assembly comprises a connecting shaft and a driving shaft rotatably connected to the back of the material blocking plate, the bottom of the connecting shaft is fixed with a connecting gear, the connecting gear is fixedly connected with the outer ring of a connecting gear ring, the top of the connecting shaft is fixed with a driving bevel gear, the inner ring of the conveying belt is provided with two conveying rollers rotatably connected to the material blocking plate, one end of the driving shaft is fixedly connected with one of the conveying rollers, and the other end of the driving shaft is fixed with a driven bevel gear meshing with the driving bevel gear.

5. The device for preparing DHA algal oil according to claim 1, characterized in that, The inner side of the water pan is provided with a scraper one, one end of the scraper one abuts against the inner wall of the fixed pipe away from the water pan, the other end of the scraper one abuts against the outer ring of the fixed pipe, and the top of the scraper one is fixedly connected with the bottom surface of the connecting gear ring through a fixed rod.

6. The device for preparing DHA algal oil according to claim 1, characterized in that, The water spraying assembly is located on one side of the material falling pipe, and comprises a water conveying pipe and a plurality of branch pipes installed on the water conveying pipe, the plurality of branch pipes are arranged along the radial direction of the filter screen, and the bottom surface of each of the plurality of branch pipes is provided with a plurality of nozzles arranged opposite to the top surface of the filter screen.

7. The device for preparing DHA algal oil according to claim 1, characterized in that, The transmission assembly comprises a fixed shaft and a linkage shaft rotatably connected to the outer periphery of the wall breaking box, and a transmission gear ring sleeved on the outer periphery of the bottom plate, one end of one of the rotating shafts extends to the outside of the wall breaking box and is fixed with a sprocket one, one end of the fixed shaft is fixed with a sprocket two, and the sprocket one and the sprocket two are drivingly connected through a chain, the outer periphery of the fixed shaft is sleeved with a driving gear, the outer periphery of the linkage shaft is sleeved with a driven gear meshing with the driving gear, one end of the linkage shaft extends to the inside of the wall breaking box and is fixedly connected with one end of the rolling roller, and the driven gear meshes with the top surface of the transmission gear ring.

8. The device for preparing DHA algal oil according to claim 7, characterized in that, The top surface of the bottom plate is fixedly connected with a transmission shaft, the material conveying assembly comprises a discharging pipe fixedly connected to the bottom of the wall breaking box and an auger rotatably connected to the discharging pipe, the discharging pipe is arranged along the radial direction of the wall breaking box, one end of the discharging pipe extends to the outside of the wall breaking box, one side of the discharging pipe is provided with a feeding groove arranged along the length direction, the bottom of the feeding groove is provided with an inclined slope abutting against the top surface of the bottom plate, one end of the auger extends to the outside of the discharging pipe and is fixedly connected with a linkage gear, and the outer periphery of the transmission shaft is sleeved with a power gear meshing with the linkage gear.

9. The device for preparing DHA algal oil according to claim 8, characterized by, The top surface of the partition plate is a conical surface protruding upward, the top of the transmission shaft extends above the partition plate and is fixedly connected with a scraper two, and the bottom surface of the scraper two abuts against the top surface of the partition plate.

10. A method for producing DHA algal oil using the apparatus for producing DHA algal oil according to any one of claims 1 to 9, characterized by, The method comprises the following steps: S1, selecting qualified microalgae, and then cleaning and removing impurities to obtain qualified raw materials; S2, filtering the cleaned microalgae to remove excess water in the microalgae; S3, wall breaking treatment is performed on the drained microalgae to obtain algal oil; S4, the prepared algal oil is collected and waits for further deep processing.

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