Crystal drying device for astaxanthin production

Abstract

A crystal drying device for astaxanthin production relates to the technical field of astaxanthin production and comprises a fixedly arranged drying tank, a plurality of heating assemblies communicated with an inner cavity of the drying tank are evenly distributed on the outer wall of the drying tank, a stirring assembly is arranged in the drying tank, and a feeding assembly and a crushing assembly communicated with the inner cavity of the drying tank are arranged on the side and the top of the drying tank respectively. The stirring assembly comprises a fixed circular plate fixedly arranged on the upper inner wall of the drying tank, the outer wall of the fixed circular plate abuts against the inner wall of the drying tank, a plurality of first through holes penetrating through the fixed circular plate are formed in the fixed circular plate, an upper rotating shaft is rotationally arranged at the top of the fixed circular plate, and a plurality of scraping plates making friction contact with the top face of the fixed circular plate are evenly distributed on the circumferential wall of the upper rotating shaft. The astaxanthin crystal drying device solves the problems that an existing astaxanthin crystal drying device is uneven in drying of crystals in the device and low in drying efficiency. The problems that large-size crystals are not dried thoroughly, and the drying effect is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of astaxanthin production, in particular to a crystal drying device for astaxanthin production. Background Art

[0002] Astaxanthin, also known as astaxanthin and lobster shell pigment, is a carotenoid and the highest level product of carotenoid synthesis. It is widely present in the biological world, especially in the feathers of aquatic animals such as shrimp, crab, fish and birds, and plays a role in color development. Astaxanthin is a chain-breaking antioxidant that can remove nitrogen dioxide, sulfide, disulfide, etc., and can also reduce lipid peroxidation and effectively inhibit lipid peroxidation caused by free radicals. At the same time, it has many physiological effects such as inhibiting tumor occurrence, enhancing immunity, and removing free radicals in the body. It has a good therapeutic effect on skin cancer caused by ultraviolet rays, and also has a preventive and therapeutic effect on eye diseases caused by diabetes. It has broad application prospects in health products, medicine, cosmetics, food additives and aquaculture.

[0003] In addition to being obtained by biological extraction, astaxanthin can also be obtained by chemical synthesis, and can also be produced using algae, bacteria, yeast, etc. During the astaxanthin production process, one of the production steps is to dry the astaxanthin crystals. The production workshop is usually equipped with a drying device specifically for drying astaxanthin crystals.

[0004] The existing astaxanthin crystal drying device gradually exposed its shortcomings during use, mainly in the following aspects:

[0005] First, when the astaxanthin crystals are dried, the heating component in the device continuously delivers hot air to the crystals, and dries the crystals by constantly stirring them. When there are many crystals in the device, the crystals at the bottom are not easily stirred upwards, so that the crystals at the bottom of the device are not dried thoroughly, resulting in uneven drying of the crystals, and the drying efficiency of the astaxanthin crystals of the device is low.

[0006] Second, the size of astaxanthin crystals varies. When drying the crystals, the smaller the size, the faster the drying speed. The drying time of a certain amount of crystals in the drying device is fixed. When there are larger crystals in the device, it is easy to cause incomplete drying, affecting the drying effect of the crystals.

[0007] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a crystal drying device for astaxanthin production, which can achieve uniform drying of astaxanthin crystals and a fast drying speed;

[0009] The device can also achieve rapid drying of larger astaxanthin crystals, and has a good drying effect.

[0010] In order to solve the above problems, the utility model provides the following technical solutions:

[0011] A crystal drying device for astaxanthin production comprises a fixed drying tank, a plurality of heating components connected to the inner cavity of the drying tank are evenly distributed on the outer wall of the drying tank, a stirring component is arranged in the drying tank, and a feeding component and a crushing component connected to the inner cavity of the drying tank are respectively arranged on the side and the top of the drying tank.

[0012] The heating component, the stirring component and the feeding component cooperate to realize uniform drying of the crystals in the drying tank with high drying efficiency; the crystals to be dried can be completely broken into smaller crystals by the crushing component, and the broken crystals are transported to the drying tank for rapid drying;

[0013] The stirring assembly comprises a fixed circular plate fixedly arranged on the inner wall of the drying tank, the outer wall of the fixed circular plate abuts against the inner wall of the drying tank, and the fixed circular plate is provided with a plurality of first through holes penetrating therethrough.

[0014] An upper rotating shaft is rotatably arranged on the top of the fixed circular plate, and a plurality of scrapers which are in frictional contact with the top surface of the fixed circular plate are evenly distributed on the peripheral wall of the upper rotating shaft.

[0015] As an optimized solution, a lower rotating shaft is coaxially provided at the bottom of the drying tank for rotation, the top of the lower rotating shaft passes through a fixed circular plate and is coaxially fixed to the upper rotating shaft, a plurality of stirring blades are evenly distributed on the outer wall of the lower rotating shaft along its axis, and the stirring blades are also symmetrically arranged along the axial section of the lower rotating shaft.

[0016] As an optimized solution, the feeding assembly includes a vertically arranged feeding cylinder, and a discharge pipe connected to the inner cavity of the feeding cylinder is fixedly connected to the outer wall of the feeding cylinder higher than the top surface of the drying tank, and one end of the discharge pipe passes through the top of the drying tank and extends to the inside.

[0017] The outer wall of the feeding cylinder which is lower than the bottom surface of the drying tank is fixedly connected with a feeding pipe which is connected with the inner cavity of the feeding cylinder. One end of the feeding pipe passes through the bottom of the drying tank and extends to the inside.

[0018] As an optimized solution, the top and bottom of the upper barrel are both sealed, and the inner bottom of the upper barrel is rotatably provided with an auger in frictional contact with its inner wall, and the top of the auger is rotatably connected to the top of the upper barrel.

[0019] As an optimized solution, the heating assembly includes a fixed box located between the fixed circular plate and the stirring blade, one end of the fixed box is open, and the open end of the fixed box passes through the drying tank and extends to the inside.

[0020] A plurality of electric heating wires are fixedly arranged at the open end of the fixed box, and two fans arranged toward the direction of the electric heating wires are fixedly arranged at the other end of the fixed box.

[0021] As an optimized solution, the crushing assembly includes a feed barrel, a lower hopper and a crushing box which are sequentially connected from bottom to top. Two meshing crushing rollers are arranged in the crushing box to rotate along a horizontal line. The two crushing rollers are also synchronously rotated in opposite directions. The lower port of the feed barrel extends into the drying tank.

[0022] A supporting circular plate abutting against the inner wall of the feeding barrel is fixedly provided in the feeding barrel, and a plurality of second through holes are penetrated through the top surface of the supporting circular plate, and the aperture of the second through holes is the same as that of the first through holes.

[0023] As an optimized solution, a rotatable driving shaft is coaxially arranged on the top of the supporting circular plate, and two squeezing rollers rotatably arranged along a horizontal line are symmetrically arranged on the outer wall of the driving shaft along its axial section, and the squeezing rollers are in frictional contact with the top surface of the supporting circular plate.

[0024] As an optimized solution, an end gear is coaxially fixed to the inner top of the feed barrel, and bevel gears meshing with the end gears are coaxially fixed to the opposite ends of the two extrusion rollers.

[0025] As an optimized solution, a feeding hopper connected to the inner cavity of the crushing box is fixedly provided at the top of the crushing box between the two crushing rollers.

[0026] As an optimized solution, a discharge pipe communicating with the inner cavity of the drying tank is fixedly provided at the bottom of the drying tank, and a sliding baffle is penetrated through the ends of the discharge pipe and the feeding pipe.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] 1. The cooperation of the heating component, stirring component and feeding component can realize uniform drying of the crystals in the drying tank, with high drying efficiency and good drying effect;

[0029] 2. The crushing component can crush all the crystals to be dried into smaller crystals, and the crushed crystals are transported to the drying tank for rapid drying, thereby improving the drying speed of the crystals. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0031] Figure 1 It is a schematic diagram of the structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the stirring assembly of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure of the crushing assembly of the utility model;

[0034] Figure 4 It is a structural schematic diagram of the baffle of the utility model.

[0035] In the figure: 1-discharging pipe; 2-driving gear; 3-third driving motor; 4-driven gear; 5-crushing assembly; 6-fixed box; 7-ventilation port; 8-heating assembly; 9-drying tank; 10-first driving motor; 11-feeding pipe; 12-second driving motor; 13-loading assembly; 14-loading barrel; 15-upper rotating shaft; 16-fixed circular plate; 17-stirring assembly; 18-electric heating wire; 19-fan ; 20-lower rotating shaft; 21-stirring blade; 22-discharge pipe; 23-scraper; 24-auger; 25-first through hole; 26-crushing box; 27-crushing roller; 28-driving shaft; 29-end gear; 30-feeding barrel; 31-squeezing roller; 32-fixing barrel; 33-built-in motor; 34-second through hole; 35-bevel gear; 36-supporting circular plate; 37-lower hopper; 38-feeding hopper; 39-baffle. DETAILED DESCRIPTION

[0036] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0037] like Figures 1 to 4As shown, a crystal drying device for astaxanthin production includes a fixed drying tank 9, a plurality of heating components 8 connected to the inner cavity of the drying tank 9 are evenly distributed on the outer wall of the drying tank 9, a stirring component 17 is arranged in the drying tank 9, and a feeding component 13 and a crushing component 5 connected to the inner cavity of the drying tank 9 are respectively arranged on the side and top of the drying tank 9.

[0038] The heating component 8, the stirring component 17 and the feeding component 13 cooperate to realize uniform drying of the crystals in the drying tank 9, and the drying efficiency is high and the drying effect is good; the crystals to be dried can be broken into smaller crystals by the crushing component 5, and the broken crystals are transported to the drying tank 9 for rapid drying;

[0039] The stirring assembly 17 includes a fixed circular plate 16 fixedly arranged on the inner wall of the drying tank 9. The outer wall of the fixed circular plate 16 abuts against the inner wall of the drying tank 9. The fixed circular plate 16 is provided with a plurality of first through holes 25 penetrating therethrough.

[0040] An upper rotating shaft 15 is rotatably provided on the top of the fixed circular plate 16, and a plurality of scrapers 23 are evenly distributed on the peripheral wall of the upper rotating shaft 15 and are in frictional contact with the top surface of the fixed circular plate 16;

[0041] The rotating scraper 23 can make the crystals fall evenly through the first through holes 25 on the fixed circular plate 16 and better contact with the hot air generated by the heating assembly 8 .

[0042] A lower rotating shaft 20 is coaxially provided at the bottom of the drying tank 9, and the top of the lower rotating shaft 20 passes through the fixed circular plate 16 and is coaxially fixed to the upper rotating shaft 15. A plurality of stirring blades 21 are evenly distributed on the outer wall of the lower rotating shaft 20 along its axis, and the stirring blades 21 are also symmetrically arranged along the axial section of the lower rotating shaft 20.

[0043] The stirring blades 21 can stir the crystals in the drying tank 9 to increase the drying efficiency.

[0044] A first driving motor 10 is fixedly provided at the bottom of the drying tank 9 , and an output end of the first driving motor 10 passes through the drying tank 9 and is fixedly connected to the lower rotating shaft 20 .

[0045] The feeding assembly 13 includes a vertically arranged feeding cylinder 14. A discharge pipe 1 connected to the inner cavity of the feeding cylinder 14 is fixedly connected to the outer wall of the feeding cylinder 14 which is higher than the top surface of the drying tank 9. One end of the discharge pipe 1 passes through the top of the drying tank 9 and extends to the inside.

[0046] A feeding pipe 11 communicating with the inner cavity of the upper barrel 14 is fixedly connected to the outer wall of the upper barrel 14 below the bottom surface of the drying tank 9. One end of the feeding pipe 11 passes through the bottom of the drying tank 9 and extends to the inside.

[0047] The top and bottom of the upper barrel 14 are both sealed, and the inner bottom of the upper barrel 14 is rotatably provided with an auger 24 in frictional contact with its inner wall, and the top of the auger 24 is rotatably connected to the top of the upper barrel 14;

[0048] The auger 24 can continuously transport the crystals at the bottom of the drying tank 9 to above the fixed circular plate 16, thereby uniformly drying the crystals, accelerating the drying speed and improving the drying effect.

[0049] A second drive motor 12 is fixedly provided at the bottom of the upper barrel 14 , and an output end of the second drive motor 12 passes through the upper barrel 14 and is fixedly connected to the auger 24 .

[0050] The heating assembly 8 includes a fixed box 6 located between the fixed circular plate 16 and the stirring blade 21. One end of the fixed box 6 is open. The open end of the fixed box 6 passes through the drying tank 9 and extends to the inside.

[0051] A plurality of electric heating wires 18 are fixedly disposed at the open end of the fixed box 6 , and two fans 19 arranged toward the direction of the electric heating wires 18 are fixedly disposed at the other end of the fixed box 6 .

[0052] The other end of the fixed box 6 is also penetrated by a plurality of ventilation holes 7 .

[0053] The crushing assembly 5 includes a feed cylinder 30, a lower hopper 37 and a crushing box 26 which are connected in sequence from bottom to top. Two meshing crushing rollers 27 are arranged in the crushing box 26 to rotate along a horizontal line. The lower end of the feed cylinder 30 extends into the drying tank 9.

[0054] A supporting circular plate 36 is fixedly disposed in the feeding barrel 30 and abuts against the inner wall thereof. A plurality of second through holes 34 are formed through the top surface of the supporting circular plate 36. The second through holes 34 have the same aperture as the first through holes 25.

[0055] The crushing roller 27 performs preliminary crushing on the crystals, and the crystals with diameters smaller than the second through holes 34 fall into the drying tank 9 for rapid drying.

[0056] The top of the supporting circular plate 36 is coaxially provided with a driving shaft 28 that is rotatable. Two squeezing rollers 31 that are rotatable along a horizontal line are symmetrically provided on the outer wall of the driving shaft 28 along its axial section. The squeezing rollers 31 are in frictional contact with the top surface of the supporting circular plate 36.

[0057] The squeezing roller 31 can perform secondary crushing on the crystals on the supporting circular plate 36 whose diameter is larger than the second through hole 34 , and accelerate the speed at which the crystals enter the drying tank 9 under the squeezing of the squeezing roller 31 .

[0058] An end gear 29 is coaxially fixedly connected to the inner top of the feeding barrel 30 , and bevel gears 35 meshing with the end gear 29 are coaxially fixedly connected to opposite ends of the two squeezing rollers 31 .

[0059] A fixing cylinder 32 is fixedly provided at the bottom of the supporting circular plate 36 , and a built-in motor 33 is fixedly provided in the fixing cylinder 32 . The output end of the built-in motor 33 passes through the supporting circular plate 36 and is fixedly connected to the driving shaft 28 .

[0060] Both ends of the crushing roller 27 are rotatably connected to the crushing box 26. The same ends of the two crushing rollers 27 pass through the crushing box 26 and extend to the outside, and are respectively fixed with the driving gear 2 and the driven gear 4, and the driving gear 2 is meshed with the driven gear 4.

[0061] A third driving motor 3 is fixedly provided at the end of the crushing box 26 , and an output end of the third driving motor 3 is fixedly connected to the driving gear 2 .

[0062] A feeding hopper 38 communicating with the inner cavity of the crushing box 26 is fixedly provided at the top thereof, located between the two crushing rollers 27 .

[0063] A discharge pipe 22 communicating with the inner cavity of the drying tank 9 is fixedly disposed at the bottom thereof, and a slidably arranged baffle 39 is penetrated through the ends of the discharge pipe 22 and the feeding pipe 11 .

[0064] The working principle of this device is:

[0065] When the astaxanthin crystals in the drying tank 9 are dried, the electric heating wire 18 generates heat, and the fan 19 blows the generated heat into the drying tank 9. The first drive motor 10 drives the upper rotating shaft 15 and the lower rotating shaft 20 to rotate, and the lower rotating shaft 20 drives the stirring blade 21 to rotate and stir the crystals in the drying tank 9. The crystals at the bottom of the drying tank 9 enter the bottom of the upper barrel 14 through the feeding pipe 11. The second drive motor 12 drives the auger 24 to rotate and transports the crystals at the bottom of the upper barrel 14 to the top of the upper barrel 14, and then the crystals fall to the top surface of the fixed circular plate 16 through the discharge pipe 1. The upper rotating shaft 15 drives the scraper 23 to rotate and evenly distributes the crystals on the top surface of the fixed circular plate 16, so that the crystals fall evenly into the drying tank 9, and the crystals can better contact with the hot air during the falling process, so that the crystals are evenly dried, and the drying efficiency is high and the drying effect is good;

[0066] When adding crystals to the drying tank 9, the crystals are added to the feeding hopper 38, and the crystals enter the crushing box 26 through the feeding hopper 38. The third driving motor 3 drives the driving gear 2 and the driven gear 4 to rotate synchronously in the opposite direction, thereby driving the two crushing rollers 27 to rotate synchronously in the opposite direction and crushing the crystals. After the crushed crystals pass through the lower hopper 37 and the feeding cylinder 30, they fall into the supporting circular plate 36. The crystals with a diameter smaller than the second through hole 34 fall into the drying tank 9, and the remaining crystals remain on the supporting circular plate 36. The built-in motor 33 drives the driving shaft 28, The squeezing roller 31 and the bevel gear 35 rotate along the plumb line. The bevel gear 35 drives the squeezing roller 31 to rotate along the horizontal line under the action of the end gear 29, and the crystals on the supporting circular plate 36 that cannot pass through the second through hole 34 are crushed again. The squeezing roller 31 can speed up the speed at which the crystals pass through the second through hole 34, thereby crushing all the crystals to be dried into smaller crystals, speeding up the drying speed of the crystals, improving the drying effect of the crystals, and effectively solving the problem of incomplete drying and poor drying effect due to the large volume of the crystals.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A crystal drying device for astaxanthin production, characterized in that: The invention comprises a fixed drying tank (9), wherein a plurality of heating components (8) are evenly distributed on the outer wall of the drying tank (9) and are connected to the inner cavity thereof, a stirring component (17) is arranged inside the drying tank (9), and a feeding component (13) and a crushing component (5) are respectively arranged on the side and the top of the drying tank (9) and are connected to the inner cavity thereof, The heating component (8), the stirring component (17) and the feeding component (13) cooperate to achieve uniform drying of the crystals in the drying tank (9) with high drying efficiency; the crushing component (5) can crush all the crystals to be dried into crystals with smaller volumes, and the crushed crystals are transported to the drying tank (9) for rapid drying; The stirring assembly (17) comprises a fixed circular plate (16) fixedly arranged on the inner wall of the drying tank (9), the outer wall of the fixed circular plate (16) abuts against the inner wall of the drying tank (9), and the fixed circular plate (16) is provided with a plurality of first through holes (25) penetrating therethrough. An upper rotating shaft (15) is rotatably provided at the top of the fixed circular plate (16), and a plurality of scrapers (23) are evenly distributed on the peripheral wall of the upper rotating shaft (15) and are in frictional contact with the top surface of the fixed circular plate (16).

2. A crystal drying device for astaxanthin production according to claim 1, characterized in that: A lower rotating shaft (20) is coaxially arranged at the bottom of the drying tank (9) for rotation. The top of the lower rotating shaft (20) passes through the fixed circular plate (16) and is coaxially fixed to the upper rotating shaft (15). A plurality of stirring blades (21) are evenly distributed on the outer wall of the lower rotating shaft (20) along its axis. The stirring blades (21) are also symmetrically arranged along the axial section of the lower rotating shaft (20).

3. A crystal drying device for astaxanthin production according to claim 2, characterized in that: The feeding assembly (13) comprises a feeding cylinder (14) arranged vertically, wherein a discharge pipe (1) connected to the inner cavity of the drying tank (9) is fixedly connected to the outer wall of the feeding cylinder (14) which is higher than the top surface of the drying tank (9), and one end of the discharge pipe (1) passes through the top of the drying tank (9) and extends to the inside. A feed pipe (11) connected to the inner cavity of the feed cylinder (14) is fixedly connected to the outer wall of the feed cylinder (14) below the bottom surface of the drying tank (9). One end of the feed pipe (11) passes through the bottom of the drying tank (9) and extends to the inside.

4. A crystal drying device for astaxanthin production according to claim 3, characterized in that: The top and bottom of the loading barrel (14) are both sealed, and the inner bottom of the loading barrel (14) is rotatably provided with an auger (24) in frictional contact with its inner wall, and the top of the auger (24) is rotatably connected to the top of the loading barrel (14).

5. A crystal drying device for astaxanthin production according to claim 4, characterized in that: The heating assembly (8) comprises a fixed box (6) located between the fixed circular plate (16) and the stirring blade (21), one end of the fixed box (6) is open, and the open end of the fixed box (6) passes through the drying tank (9) and extends to the inside. A plurality of electric heating wires (18) are fixedly disposed at the open end of the fixed box (6), and two fans (19) arranged toward the electric heating wires (18) are fixedly disposed at the other end of the fixed box (6).

6. A crystal drying device for astaxanthin production according to claim 5, characterized in that: The crushing assembly (5) comprises a feed cylinder (30), a lower hopper (37) and a crushing box (26) which are sequentially connected from bottom to top. Two meshing crushing rollers (27) are arranged in the crushing box (26) to rotate along a horizontal line. The lower end of the feed cylinder (30) extends into the drying tank (9). A supporting circular plate (36) is fixedly provided in the feeding barrel (30) and abuts against the inner wall thereof. A plurality of second through holes (34) are penetrated through the top surface of the supporting circular plate (36). The second through holes (34) have the same aperture as the first through holes (25).

7. A crystal drying device for astaxanthin production according to claim 6, characterized in that: A rotatable driving shaft (28) is coaxially arranged on the top of the supporting circular plate (36), and two squeezing rollers (31) are symmetrically arranged on the outer wall of the driving shaft (28) along its axial section and are rotatably arranged along a horizontal line. The squeezing rollers (31) are in frictional contact with the top surface of the supporting circular plate (36).

8. A crystal drying device for astaxanthin production according to claim 7, characterized in that: An end gear (29) is coaxially fixedly connected to the inner top of the feeding barrel (30), and a bevel gear (35) meshing with the end gear (29) is coaxially fixedly connected to the opposite ends of the two squeezing rollers (31).

9. A crystal drying device for astaxanthin production according to claim 8, characterized in that: A feeding hopper (38) communicating with the inner cavity of the crushing box (26) is fixedly provided at the top of the crushing box (26) between the two crushing rollers (27).

10. A crystal drying device for astaxanthin production according to claim 9, characterized in that: A discharge pipe (22) communicating with the inner cavity of the drying tank (9) is fixedly provided at the bottom of the drying tank (9), and a slidable baffle (39) is penetrated through the ends of the discharge pipe (22) and the feed pipe (11).

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