Edible phycocyanin low-temperature spray drying equipment

Abstract

The utility model relates to the technical field of low-temperature spray drying, in particular to edible phycocyanin low-temperature spray drying equipment which comprises a drying chamber, an exhaust structure and a drying structure, and the drying chamber comprises a drying tank; the exhaust structure comprises a sealing cover, and a sealing sleeve is inserted in the middle of the sealing cover; the drying structure comprises an air pipe, the air pipe is rotationally connected with the inner wall of the sealing sleeve in a sleeving mode, a second air guide cover is fixedly installed at the bottom of the air pipe, a plurality of feeding branch pipes are embedded in the air pipe and the inner wall of the second air guide cover in an equal-angle distribution mode, and atomizing nozzles are fixedly installed on the inner wall of the second air guide cover and fixedly connected with the lower ends of the feeding branch pipes. According to the device, liquid protein liquid is atomized and sprayed out, meanwhile, the atomization nozzles are driven by the rotary air pipe and the second air guide cover to rotate, so that protein liquid mist is in a spiral spraying track, purified hot air enters from the upper portion of the air pipe, and the protein liquid mist is sprayed into the drying tank from the second air guide cover; and the protein liquid mist can be in full and uniform contact with hot air in the initial spraying stage.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature spray drying technology, specifically a low-temperature spray drying device for edible phycocyanin. Background Technology

[0002] Phycocyanin is a natural pigment protein extracted from cyanobacteria, mainly found in edible algae such as Spirulina and Nostoc. It is a blue powder and belongs to protein-bound pigments, possessing properties similar to proteins. Current production methods mostly involve breaking down algal cell walls to release phycocyanin and dissolving it in a separation liquid for separation. Therefore, a drying device is needed to dry the protein solution. To avoid protein denaturation, low-temperature spray drying equipment is usually used for drying.

[0003] Most current low-temperature spray drying equipment places the air inlet and outlet on the top sides of the drying chamber. The hot air will first come into contact with the protein liquid mist on one side of the drying chamber. The contact time between the protein droplets and the hot air is not the same in different parts of the drying chamber. There is still room for improvement in the sufficiency and uniformity of contact, which affects the drying effect. Utility Model Content

[0004] The purpose of this invention is to provide a low-temperature spray drying device for edible phycocyanin to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A low-temperature spray drying device for edible phycocyanin includes:

[0007] Drying chamber, the drying chamber including drying tank;

[0008] An exhaust structure, the exhaust structure including a cover, wherein a sealing sleeve is inserted and installed in the middle of the cover;

[0009] The drying structure includes an air duct that is rotatably sleeved with the inner wall of a sealing sleeve. A second air guide hood is fixedly installed at the bottom of the air duct. Several feed branch pipes are embedded in the air duct and the inner wall of the second air guide hood at equal angles. An atomizing nozzle is fixedly installed on the inner wall of the second air guide hood, and the atomizing nozzle is fixedly connected to the lower end of the feed branch pipe.

[0010] Furthermore, the drying chamber also includes:

[0011] A storage hopper is fixedly installed at the lower opening of the drying tank;

[0012] A connecting shaft, the two ends of which are rotatably connected to the inner walls of the lower end of the drying tank;

[0013] A wind baffle plate, which is fixedly installed in the middle of the connecting shaft;

[0014] Motor No. 1 is fixedly installed on one side surface of the drying tank, and the output end of Motor No. 1 is fixedly connected to one end of the connecting shaft.

[0015] Furthermore, the exhaust structure also includes:

[0016] The No. 1 air guide hood is arranged and fixedly installed at equal intervals on the edge of the upper surface of the cover, and the lower opening of the No. 1 air guide hood passes through the cover.

[0017] A filter is fixedly installed at the opening on the No. 1 air guide shroud;

[0018] A converging loop, the bottom of which is interconnected with each filter;

[0019] The exhaust duct is fixedly installed on one side of the converging ring pipe.

[0020] Furthermore, a wind-blocking ring is fixedly installed at the edge of the bottom surface of the cover, and the wind-blocking ring covers the lower opening of the wind-blocking ring.

[0021] Furthermore, the drying structure also includes:

[0022] Ring seat, the ring seat is fixedly sleeved on the side surface of the air duct;

[0023] A flow guide slip ring is fixedly installed at the opening on the sealing sleeve, and the flow guide slip ring is rotatably connected to the ring seat in a sealing manner;

[0024] A flow guide channel is provided at the connection surface of the ring seat and the flow guide slip ring, and the flow guide channel is interconnected with the openings on each feed pipe.

[0025] The feed pipe is fixedly installed on one side of the guide slip ring, and one end of the feed pipe is connected to the guide groove.

[0026] Furthermore, the drying structure also includes:

[0027] An external toothed ring, which is fixedly sleeved on the side surface of the air duct;

[0028] The gear meshes with one side of the external gear ring;

[0029] The second motor is fixedly installed on the upper surface of the cover, and the output end of the second motor is fixedly connected to the gear;

[0030] A connection port, which is rotatably mounted on the opening of the air duct via a bearing;

[0031] A fixing frame, the upper end of which is fixedly connected to both sides of the connection port, and the lower end of which is fixedly connected to the cover;

[0032] An air inlet pipe, one end of which is fixedly connected to a connector.

[0033] Compared with the prior art, the beneficial effects of this utility model are:

[0034] 1. Liquid edible phycocyanin solution is introduced into each feed pipe and atomized from the atomizing nozzles. Simultaneously, the rotating air duct and the second air guide hood drive each atomizing nozzle to move axially, causing the protein liquid mist to spray in a spiral trajectory. At the same time, filtered and purified hot air enters from the top of the air duct and sprays the protein liquid mist into the drying tank from the second air guide hood. This allows the protein liquid mist to fully and evenly contact the hot air in the initial stage of spraying, and then diffuses in the drying tank to increase the distance between each droplet and prolong the contact time between the hot air and the droplets, effectively improving the drying efficiency and preventing the protein liquid sprayed in the relatively small space inside the second air guide hood from adhering to the air duct and the inner wall of the second air guide hood.

[0035] 2. When the atomized protein liquid is sprayed downwards from the No. 2 air guide hood, it is blocked and guided by the arc-shaped concave structure of the air baffle plate and flows back into the upper space inside the drying tank. This prolongs the time for it to be contacted and dried by hot air, improves the drying effect, and prevents the protein liquid mist from accumulating in the lower opening of the storage hopper before it is completely dried. After the protein liquid quantitatively fed into the drying tank has been dried by hot air for a period of time, the connecting shaft driven by the No. 1 motor rotates, controlling the air baffle plate to flip and pour out the protein powder accumulated in the air baffle plate. Then, the valve installed at the connection between the storage hopper and the next stage processing equipment is opened, and the next processing state is entered. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0037] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0038] Figure 3 This is a schematic diagram of the drying chamber in this utility model;

[0039] Figure 4 This is a schematic diagram of the exhaust structure in this utility model;

[0040] Figure 5 This is a schematic diagram of the drying structure in this utility model.

[0041] In the diagram: 1. Drying chamber; 101. Drying tank; 102. Storage hopper; 103. Baffle plate; 104. Connecting shaft; 105. Motor No. 1; 2. Exhaust structure; 201. Cover; 202. Sealing sleeve; 203. Air guide hood No. 1; 204. Baffle ring; 205. Filter; 206. Converging ring pipe; 207. Exhaust pipe; 3. Drying structure; 301. Air duct; 302. Ring seat; 303. Guide slip ring; 304. Guide groove; 305. Feed pipe; 306. Air guide hood No. 2; 307. Feed branch pipe; 308. Atomizing nozzle; 309. External gear ring; 310. Gear; 311. Motor No. 2; 312. Connection port; 313. Fixing frame; 314. Air inlet pipe. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Please see Figure 1-5 In this embodiment of the present invention, a low-temperature spray drying device for edible phycocyanin includes a drying chamber 1, an exhaust structure 2, and a drying structure 3. The drying chamber 1 includes a drying tank 101; the exhaust structure 2 includes a cover 201, with a sealing sleeve 202 inserted in the middle of the cover 201; the drying structure 3 includes an air duct 301, which is rotatably connected to the inner wall of the sealing sleeve 202. A second air guide hood 306 is fixedly installed at the bottom of the air duct 301. Several feed pipes 307 are embedded at equal angles on the inner walls of the air duct 301 and the second air guide hood 306. An atomizing nozzle 308 is fixedly installed on the inner wall of the second air guide hood 306, and the atomizing nozzle 308 is fixedly connected to the lower end of the feed pipe 307.

[0044] Specifically, liquid edible phycocyanin is introduced into each feed pipe 307 and atomized from the atomizing nozzle 308. Simultaneously, the rotating air duct 301 and the second air guide hood 306 drive each atomizing nozzle 308 to move axially, causing the protein liquid mist to spray in a spiral trajectory. At the same time, filtered and purified hot air enters from above the air duct 301 and sprays the protein liquid mist into the drying tank 101 from the second air guide hood 306. This allows the protein liquid mist to fully and evenly contact the hot air in the initial stage of spraying, and then diffuses within the drying tank 101, increasing the distance between each droplet and prolonging the contact time between the hot air and the droplets, effectively improving drying efficiency and preventing the protein liquid sprayed from the relatively narrow space inside the second air guide hood 306 from adhering to the inner walls of the air duct 301 and the second air guide hood 306.

[0045] Example 1

[0046] like Figure 2 , 3 As shown, in this embodiment, the drying chamber 1 further includes a storage hopper 102, an air baffle plate 103, a connecting shaft 104, and a primary motor 105. The storage hopper 102 is fixedly installed at the lower opening of the drying tank 101; the two ends of the connecting shaft 104 are rotatably connected to the inner walls on both sides of the lower end of the drying tank 101; the air baffle plate 103 is fixedly installed in the middle of the connecting shaft 104; the primary motor 105 is fixedly installed on one side surface of the drying tank 101, and the output end of the primary motor 105 is fixedly connected to one end of the connecting shaft 104.

[0047] In this embodiment, when the atomized protein liquid is sprayed downwards from the second air guide hood 306, it is blocked and guided by the arc-shaped concave structure of the air baffle 103 and flows back into the upper space inside the drying tank 101, prolonging the time for it to be contacted and dried by hot air, improving the drying effect, and preventing the protein liquid mist from accumulating in the lower opening of the storage hopper 102 before it is completely dried. After the protein liquid quantitatively fed into the drying tank 101 has been dried by hot air for a period of time, the connecting shaft 104 is driven to rotate by the first motor 105, controlling the air baffle 103 to flip and pour out the protein powder accumulated in the air baffle 103. Then, the valve installed at the connection between the storage hopper 102 and the next stage processing equipment is opened, and the next processing state is entered.

[0048] like Figure 2 , 4 As shown, in this embodiment, the exhaust structure 2 further includes a first air guide hood 203, a filter 205, a converging ring pipe 206, and an exhaust pipe 207. The first air guide hood 203 is arranged at equal intervals and fixedly installed on the upper surface edge of the cover 201, with the lower opening of the first air guide hood 203 passing through the cover 201. The filter 205 is fixedly installed at the upper opening of the first air guide hood 203. The bottom of the converging ring pipe 206 is interconnected with each filter 205. The exhaust pipe 207 is fixedly installed on one side of the converging ring pipe 206. A wind-blocking ring 204 is fixedly installed at the bottom surface edge of the cover 201, and the wind-blocking ring 204 covers the lower opening of the wind-blocking ring 204.

[0049] In practice, the exhaust pipe 207 is connected to the exhaust gas treatment equipment. The hot air carrying fine protein powder particles in the drying tank 101 is further obstructed by the wind baffle ring 204, and after intercepting some of the protein powder particles, it enters the first air guide hood 203 through the edge gap. The remaining protein powder is intercepted by the filter 205 and enters the converging ring pipe 206. Finally, it is discharged from the exhaust pipe 207. After the air injection stops, the dried protein powder intercepted by the filter 205 falls back into the drying tank 101 under the action of gravity through the first air guide hood 203.

[0050] Example 2

[0051] Based on Example 1, this paper supplements the specific method of drying structure 3, which was not mentioned in Example 1, to perform the drying operation.

[0052] like Figure 2 , 5 As shown, in this embodiment, the drying structure 3 further includes a ring seat 302, a guide slip ring 303, a guide groove 304, a feed pipe 305, an external gear ring 309, a gear 310, a second motor 311, a connection port 312, a fixing frame 313, and an air inlet pipe 314. The ring seat 302 is fixedly sleeved on the side surface of the air pipe 301; the guide slip ring 303 is fixedly installed at the opening on the sealing sleeve 202, and the guide slip ring 303 and the ring seat 302 are sealed and rotated together; the guide groove 304 is opened at the connection surface of the ring seat 302 and the guide slip ring 303, and the guide groove 304 is interconnected with the openings on each feed branch pipe 307; the feed pipe 305 is fixedly installed on one side of the guide slip ring 303, and one end of the feed pipe 305 is connected to the guide groove 304; the external gear ring 309 is fixedly sleeved on the side surface of the air duct 301; the gear 310 meshes with one side of the external gear ring 309; the second motor 311 is fixedly installed on the upper surface of the cover 201, and the output end of the second motor 311 is fixedly connected to the gear 310; the connection port 312 is rotatably installed on the opening of the air duct 301 through the bearing; the upper end of the fixing bracket 313 is fixedly connected to both sides of the connection port 312, and the lower end of the fixing bracket 313 is fixedly connected to the cover 201; one end of the air inlet pipe 314 is fixedly connected to the connection port 312.

[0053] In practice, the air inlet pipe 314 is connected to a hot air blower with a multi-filter structure, and the feed pipe 305 is connected to an edible phycocyanin liquid feeding device. The protein liquid is fed into the guide channel 304 through the feed pipe 305, and then into each feed branch pipe 307, where it is atomized and sprayed out by the atomizing nozzle 308. At the same time, the gear 310 is rotated by the second motor 311, and then the air pipe 301 is rotated by the external gear ring 309, so that each atomizing nozzle 308 moves axially. Meanwhile, the purified hot air is fed into the air pipe 301 through the connection port 312 from the air inlet pipe 314.

[0054] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low temperature spray drying apparatus for edible phycocyanin, characterized by, include: Drying chamber (1), the drying chamber (1) includes a drying tank (101); The exhaust structure (2) includes a cover (201) and a sealing sleeve (202) is inserted and installed in the middle of the cover (201); The drying structure (3) includes an air duct (301), which is rotatably sleeved with the inner wall of the sealing sleeve (202). A second air guide hood (306) is fixedly installed at the bottom of the air duct (301). Several feed pipes (307) are embedded at equal angles on the inner walls of the air duct (301) and the second air guide hood (306). An atomizing nozzle (308) is fixedly installed on the inner wall of the second air guide hood (306). The atomizing nozzle (308) is fixedly connected to the lower end of the feed pipe (307).

2. The edible phycocyanin low temperature spray drying apparatus of claim 1, wherein, The drying chamber (1) further includes: A storage hopper (102) is fixedly installed at the lower opening of the drying tank (101); A connecting shaft (104) is provided, the two ends of which are rotatably connected to the inner walls of the lower ends of the drying tank (101); A wind baffle (103) is fixedly installed in the middle of the connecting shaft (104); A No. 1 motor (105) is fixedly installed on one side surface of the drying tank (101), and the output end of the No. 1 motor (105) is fixedly connected to one end of the connecting shaft (104).

3. The edible phycocyanin low temperature spray drying apparatus of claim 2, wherein, The exhaust structure (2) also includes: The No. 1 air guide hood (203) is arranged at equal intervals and fixedly installed on the upper surface edge of the cover (201). The lower opening of the No. 1 air guide hood (203) passes through the cover (201). A filter (205) is fixedly installed at the opening of the first air guide shroud (203); A converging ring (206) is provided, the bottom of which is connected to each filter (205); An exhaust duct (207) is fixedly installed on one side of the converging ring pipe (206).

4. The edible phycocyanin low temperature spray drying apparatus of claim 3, wherein, A wind-blocking ring (204) is fixedly installed at the edge of the bottom surface of the cover (201), and the wind-blocking ring (204) covers the lower opening of the wind-blocking ring (204).

5. The edible C-phycocyanin low temperature spray drying apparatus according to claim 4, wherein, The drying structure (3) further includes: Ring seat (302), the ring seat (302) is fixedly sleeved on the side surface of the air duct (301); A flow guide slip ring (303) is fixedly installed at the opening on the sealing sleeve (202), and the flow guide slip ring (303) is rotatably and sealed to the ring seat (302); A flow guide groove (304) is provided at the connection surface of the ring seat (302) and the flow guide slip ring (303), and the flow guide groove (304) is interconnected with the openings on each feed branch pipe (307); Feed pipe (305) is fixedly installed on one side of guide slip ring (303), and one end of feed pipe (305) is connected to guide groove (304).

6. The edible phycocyanin low temperature spray drying apparatus of claim 5, wherein, The drying structure (3) further includes: An external toothed ring (309) is fixedly sleeved on the side surface of the air duct (301); Gear (310), which meshes with one side of external gear ring (309); The second motor (311) is fixedly installed on the upper surface of the cover (201), and the output end of the second motor (311) is fixedly connected to the gear (310); Connection port (312), which is rotatably mounted on the opening of the air duct (301) via a bearing; A fixing frame (313) is fixedly connected at its upper end to both sides of the connecting port (312) and at its lower end to the cover (201). An air inlet pipe (314) is fixedly connected at one end to a connector (312).

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