A spray drying apparatus based on food protein carrier entrapment

Abstract

A kind of spray drying device based on food protein carrier embedding, including feed cylinder (1), feed cylinder (1) right side is sequentially fixedly connected with pressure regulating component and homogenizing component;Pressure regulating component includes pressure regulating bin (2), annular slide rail (4), slide hoop (5), accommodating block (6), pressure regulating piece (7), pressure regulating bin (2) is fixedly connected on the right side of feed cylinder (1), the inner wall of pressure regulating bin (2) is fixedly connected with annular slide rail (4), slide hoop (5) is movably arranged in annular slide rail (4), three accommodating blocks (6) are fixedly connected in slide hoop (5), sliding slot is formed in each accommodating block (6), pressure regulating piece (7) is movably arranged in sliding slot, the shape and size of pressure regulating piece (7) and accommodating block (6) cross section are identical, and pressure regulating piece (7) is fan-shaped, the arc length of pressure regulating piece (7) is 1 / 6 of the inner wall circumference of slide hoop (5). In homogenizing component, by colliding in negative pressure groove, protein is dispersed faster, when pressure is greater, the homogenizing effect in homogenizing component is stronger, so that the homogenizing granularity is finer.

Description

Technical Field

[0001] This invention belongs to the field of food protein homogenization and refining technology, and in particular relates to a spray drying device based on food protein carrier encapsulation. Background Technology

[0002] A homogenizer is a device used to homogenize and emulsify liquid materials with a viscosity below 0.2 Pa·s and a temperature below 100°C. In food processing, a homogenizer refers to a device that refines the material by subjecting it to the triple action of extrusion, strong impact, and depressurization expansion, thereby enabling the materials to mix more evenly. For example, in dairy processing, a homogenizer is used to break down the fat in milk into smaller pieces, thus making the entire product system more stable and the milk appear whiter.

[0003] An aqueous solution of a milk protein is dissolved together with anthocyanins, an antioxidant, in water. The mixture is then homogenized (a homogenizer forces liquid through a narrow slit under pressure, creating chemical bonds or van der Waals forces to stably bind the protein and active ingredient). After spray drying, an antioxidant protein (encapsulated) is obtained. Using this new protein to make cookies and bread means the anthocyanins will target the small intestine instead of the stomach, significantly improving bioavailability.

[0004] Current homogenizers typically use manual, hydraulic, and pneumatic pressure regulation for pressure adjustment. Manual and pneumatic pressure regulation have limited applications and certain limitations. Hydraulic pressure regulation has higher manufacturing costs, and oil leaks can contaminate materials, especially in the food industry. Therefore, conventional pressure regulation methods affect the homogenization effect of the homogenizer. Furthermore, after homogenizing the protein solution, it needs to be spray-dried. Spray drying atomizes the protein solution, heats and dries the water, leaving solids. This process requires controlling the atomized particles according to requirements, which is difficult to achieve with conventional spray drying nozzles. Summary of the Invention

[0005] The purpose of this invention is to provide a spray drying device based on food protein carrier encapsulation, which solves the problems of the traditional homogenizer pressure regulation method, which cannot stably regulate the homogenizer pressure, and the inconvenience of adjusting the intensity of atomized particles during spray drying.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a spray drying device based on food protein carrier encapsulation, comprising a feed cylinder, a pressure regulating component and a homogenizing component are fixedly connected in sequence on the right side of the feed cylinder, a spray component is provided at the bottom of the homogenizing component, and a heating component is provided outside the spray component. The feed cylinder is used to feed raw materials into the device. The pressure regulating assembly includes a pressure regulating chamber, an annular slide rail, a sliding hoop, a receiving block, and a pressure regulating plate. The pressure regulating chamber is fixedly connected to the right side of the feed cylinder. The inner wall of the pressure regulating chamber is fixedly connected to the annular slide rail. A sliding hoop is movably disposed inside the annular slide rail. Three receiving blocks are fixedly connected inside the sliding hoop. Each receiving block has a groove inside. The pressure regulating plate is movably disposed inside the groove. The pressure regulating plate and the receiving blocks have the same cross-sectional shape and size, and the pressure regulating plate is fan-shaped. The arc length of the pressure regulating plate is equal to the arc length of the sliding hoop. One-sixth of the wall circumference, the pressure regulating chamber is used to adjust the pressure inside the device, thereby changing the homogenization effect. The annular slide rail is in a fixed state, allowing the slide hoop to rotate and slide inside. The slide hoop is used to fix three accommodating blocks in an array. The accommodating blocks are used to accommodate the pressure regulating plate. The pressure regulating plate can extend, retract, and rotate, thereby changing the homogenization pressure inside the homogenizer. The volume of the chute is just the same as the volume of the pressure regulating plate. The pressure regulating plate slides in an arc shape inside the chute, changing the size of the gap between it and the adjacent accommodating blocks during the sliding process. The homogenizing component includes a homogenizing cylinder and a threaded rod. The homogenizing cylinder is fixedly connected to the right side of the pressure regulating chamber. Four negative pressure grooves are formed around the inner wall of the homogenizing cylinder. The longitudinal cross-sectional shape of the negative pressure grooves is rectangular. A threaded rod is movably installed at the central axis position inside the homogenizing cylinder. The inside of the homogenizing cylinder is used to homogenize the raw materials. When the material moves to the negative pressure grooves, its movement trajectory changes, causing the materials to collide with each other and further disperse. The threads on the surface of the threaded rod can accelerate the transmission speed of the solution after rotating counterclockwise, resulting in better dispersion and higher pressure in the homogenizer. The spray assembly includes a nozzle, a first filter, a second filter, and a third filter. The nozzle is a hollow cylindrical structure and is movably disposed at its bottom relative to the homogenizing cylinder. The first filter, the second filter, and the third filter are fixedly arranged sequentially from the inside to the outside of the nozzle. The longitudinal cross-section of the first filter, the second filter, and the third filter is in the shape of a "」", and the mesh size is arranged sequentially from small to large. The nozzle is used to atomize the solution. The first filter, the second filter, and the third filter are set to meet the requirements of different atomization particle sizes, but the mesh size is different.

[0007] Preferably, the pressure regulating assembly further includes a pressure sensor. An installation groove is provided at the top of the inner wall of the pressure regulating chamber, and a pressure sensor is fixedly installed inside the installation groove. The pressure sensor is used to sense the pressure inside the pressure regulating chamber and thus make adjustments.

[0008] Preferably, each of the inner walls of the sliding groove inside the accommodating block is provided with a movable groove on both sides. Each movable groove is provided with an elastic element, and a sliding block is fixedly provided at one end of each elastic element. The sliding block is movably disposed inside the movable groove, and one end of the sliding block is fixed to the side of the pressure regulating plate. The elasticity of the elastic element pushes the pressure regulating plate connected to the sliding block against the inside of the accommodating block. When a certain degree of centrifugal force occurs, the sliding block squeezes the elastic element outward, thereby driving the pressure regulating plate to slide outward.

[0009] Preferably, the sliding block is fixedly disposed on the right end of the side of the pressure regulating plate and located in the middle position, and the movement trajectory of the sliding block is arc-shaped.

[0010] Preferably, the three receiving blocks are fixedly connected to the circumferential side of the fixed shaft and are arranged in an array with each other. The right side of the fixed shaft is fixedly connected to the left end of the threaded rod. The threaded rod rotates counterclockwise. The fixed shaft is used to fix the three receiving blocks.

[0011] Preferably, a rotating shaft is fixedly connected to the right end of the threaded rod. One end of the rotating shaft passes through the homogenizing cylinder and the fixed seat in sequence and is fixedly connected to the output end of the motor. A base is fixedly connected to the bottom of the motor. The side of the motor is fixedly connected to the fixed seat. Three connecting rods are arranged in an array on the side of the fixed seat. The other ends of the three connecting rods are fixedly connected to the outer wall of the pressure regulating chamber. The rotating shaft is used to connect the threaded rod and the output end of the motor. The fixed seat is used to fix the connecting rods and the motor. The motor is used to drive the threaded rod and the pressure regulating assembly to rotate, thereby regulating the pressure of the homogenizer. The base is used to support the weight of the motor.

[0012] Preferably, the homogenizing cylinder has a discharge port at the bottom right end, a conveying pipe is fixedly installed at the bottom of the discharge port, a rotating component is movably connected to the bottom of the conveying pipe, the bottom of the rotating component is fixedly connected to the top of the nozzle, a through hole is opened at the top of the nozzle, and the bottom of the conveying pipe is movably installed inside the through hole.

[0013] Preferably, the heating assembly includes a glass cover, an air supply pipe, and a temperature sensor. The glass cover is fixedly installed outside the nozzle, and the air supply pipe is fixedly connected to the top of the glass cover. The temperature sensor is fixedly connected to the top of the inside of the glass cover. The inside of the glass cover is used to inject hot air to dry the atomized solution and evaporate the moisture trapped inside. The temperature sensor is used to detect the temperature of the hot air inside the glass cover, so as to facilitate the adjustment of the drying temperature. The air supply pipe is used to transmit hot air, and hot air is input into the inside of the glass cover from external instruments through the air supply pipe.

[0014] Preferably, a circular hole is provided at the center of the top of the glass cover, and the material conveying pipe is fixedly installed inside the circular hole.

[0015] The present invention has the following beneficial effects: This invention utilizes a rotary pressure regulating component connected to a threaded rod. When adjusting the pressure, the sliding clamp rotates counter-clockwise, causing the pressure regulating plate inside the receiving block to receive outward centrifugal force. The centrifugal force of the pressure regulating plate is controlled by the rotation speed; the faster the rotation, the stronger the centrifugal force, the larger the area thrown out by the pressure regulating plate, and the arc-shaped rotation trajectory of the plate. The smaller the gap between the pressure regulating plate and the adjacent receiving block, the greater the homogenization pressure in the homogenizer. This adjustment method allows for stable pressure regulation within the homogenizer, preventing sudden increases or decreases in pressure. Furthermore, the smaller the gap and the higher the pressure, the faster the solution is guided by the rotating threaded rod. As the solution enters the homogenizing cylinder and passes through the negative pressure tank, it collides within the tank, resulting in faster protein dispersion. In other words, the higher the pressure, the stronger the homogenization effect within the homogenizer, leading to finer homogenized particles.

[0016] This invention features a centrifugal spray assembly. The nozzle adjusts its rotation speed according to the desired particle size. The smaller the desired particle size, the faster the rotation speed. The homogenized solution entering the nozzle is centrifugally thrown outward by the high-speed rotating nozzle. The greater the centrifugal force, the greater the force with which the solution is thrown outward. The solution passes through filters of different mesh sizes to form atomized particles of different sizes. This structure is simple and has a significant atomization effect. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of the spray drying device based on food protein carrier encapsulation provided by the present invention; Figure 2 A rear view schematic diagram of the spray drying device based on food protein carrier encapsulation provided by the present invention; Figure 3 This is a schematic diagram of the front cross-sectional structure of the spray drying device based on food protein carrier encapsulation provided by the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 For the present invention Figure 3 Enlarged view at point B in the middle; Figure 6 For the present invention Figure 3 Enlarged view at point C; Figure 7A schematic diagram showing the disassembled structure of the spray drying device based on food protein carrier encapsulation provided by the present invention; Figure 8 For the present invention Figure 7 Enlarged view at point D; Figure 9 A schematic diagram of the disassembled structure of the pressure regulating component of the spray drying device based on food protein carrier encapsulation provided by the present invention; The attached diagram lists the components represented by each number as follows: 1. Feed cylinder; 2. Pressure regulating chamber; 3. Pressure sensor; 4. Circular slide rail; 5. Sliding hoop; 6. Containing block; 7. Pressure regulating plate; 8. Sliding block; 9. Elastic element; 10. Homogenizing cylinder; 11. Fixed shaft; 12. Threaded rod; 13. Rotating shaft; 14. Connecting rod; 15. Fixed base; 16. Motor; 17. Base; 18. Feed pipe; 19. Rotating component; 20. Nozzle; 21. First filter screen; 22. Second filter screen; 23. Third filter screen; 24. Glass cover; 25. Air supply pipe; 26. Temperature sensor. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] See Figure 1-9The present invention is a spray drying device based on food protein carrier encapsulation, including a feed cylinder 1. A pressure regulating component and a homogenizing component are fixedly connected to the right side of the feed cylinder 1 in sequence. A spray component is provided at the bottom of the homogenizing component. A heating component is provided outside the spray component. The feed cylinder 1 is used to feed the raw material into the device. The pressure regulating assembly includes a pressure regulating chamber 2, an annular slide rail 4, a sliding hoop 5, a receiving block 6, and a pressure regulating plate 7. The pressure regulating chamber 2 is fixedly connected to the right side of the feed cylinder 1. The inner wall of the pressure regulating chamber 2 is fixedly connected to the annular slide rail 4. The sliding hoop 5 is movably arranged inside the annular slide rail 4. Three receiving blocks 6 are fixedly connected inside the sliding hoop 5. Each receiving block 6 has a groove inside. The pressure regulating plate 7 is movably arranged inside the groove. The pressure regulating plate 7 and the receiving block 6 have the same cross-sectional shape and size. The pressure regulating plate 7 is fan-shaped. The arc length of the pressure regulating plate 7 is 1 / 6 of the circumference of the inner wall of the sliding hoop 5. The pressure regulating chamber 2 is used to adjust the pressure inside the device, thereby changing the homogenization effect. The annular slide rail 4 is in a fixed state, allowing the sliding hoop 5 to rotate and slide inside it. The sliding hoop 5 is used to fix the three receiving blocks 6 in an array. The receiving blocks 6 are used to house the pressure regulating plate 7. The pressure regulating plate 7 can extend, retract, and rotate, thereby changing the homogenization pressure inside the homogenizer. In this embodiment, the pressure regulating assembly also includes a pressure sensor 3. An installation groove is provided at the top of the inner wall of the pressure regulating chamber 2, and the pressure sensor 3 is fixedly installed inside the installation groove. The pressure sensor 3 is used to sense the pressure inside the pressure regulating chamber 2 and make adjustments accordingly.

[0023] In this embodiment, movable grooves are respectively opened on the inner walls of opposite sides of the sliding groove inside each accommodating block 6. Each movable groove is provided with an elastic element 9. A sliding block 8 is fixedly provided at one end of each elastic element 9. The sliding block 8 is movably disposed inside the movable groove. One end of the sliding block 8 is fixed to the side of the pressure regulating plate 7. The elasticity of the elastic element 9 will push the pressure regulating plate 7 connected to the sliding block 8 against the inside of the accommodating block 6. When a certain degree of centrifugal force occurs, the sliding block 8 will squeeze the elastic element 9 outward, thereby driving the pressure regulating plate 7 to slide outward.

[0024] In this embodiment, the sliding block 8 is fixedly disposed on the right side of the pressure regulating plate 7 and is located in the middle position. The movement trajectory of the sliding block 8 is arc-shaped.

[0025] The homogenizing assembly includes a homogenizing cylinder 10 and a threaded rod 12. The homogenizing cylinder 10 is fixedly connected to the right side of the pressure regulating chamber 2. Four negative pressure grooves are formed around the inner wall of the homogenizing cylinder 10. The longitudinal cross-section of the negative pressure grooves is rectangular. The threaded rod 12 is movably arranged at the central axis position inside the homogenizing cylinder 10. The inside of the homogenizing cylinder 10 is used to homogenize the raw materials. When the material moves to the negative pressure grooves, the movement trajectory changes, causing the materials to collide with each other and further disperse. The threads on the surface of the threaded rod 12 can accelerate the transmission speed of the solution after rotating counterclockwise, resulting in better dispersion and greater pressure in the homogenizer. In this embodiment, a rotating shaft 13 is fixedly connected to the right end of the threaded rod 12. One end of the rotating shaft 13 passes through the homogenizing cylinder 10 and the fixed seat 15 in sequence and is fixedly connected to the output end of the motor 16. A base 17 is fixedly connected to the bottom of the motor 16. The side of the motor 16 is fixedly connected to the fixed seat 15. Three connecting rods 14 are arranged on the side of the fixed seat 15. The other end of the three connecting rods 14 is fixedly connected to the outer wall of the pressure regulating chamber 2. The rotating shaft 13 is used to connect the threaded rod 12 and the output end of the motor 16. The fixed seat 15 is used to fix the connecting rods 14 and the motor 16. The motor 16 is used to drive the threaded rod 12 and the pressure regulating assembly to rotate, thereby regulating the pressure of the homogenizer. The base 17 is used to support the weight of the motor 16.

[0026] The spray assembly includes a nozzle 20, a first filter 21, a second filter 22, and a third filter 23. The nozzle 20 is a hollow cylindrical structure and is movably disposed at the bottom of the homogenizing cylinder 10. The first filter 21, the second filter 22, and the third filter 23 are fixedly arranged sequentially from the inside to the outside of the nozzle 20. The longitudinal section of the first filter 21, the second filter 22, and the third filter 23 is in the shape of a "」", and the mesh size is arranged sequentially from small to large. The nozzle 20 is used to atomize the solution. The first filter 21, the second filter 22, and the third filter 23 are set to meet the requirements of different atomization particle sizes, but the mesh size is different.

[0027] In this embodiment, a discharge port is provided at the bottom right end of the homogenizing cylinder 10, and a conveying pipe 18 is fixedly provided at the bottom of the discharge port. A rotating component 19 is movably connected to the bottom of the conveying pipe 18. The bottom of the rotating component 19 is fixedly connected to the top of the nozzle 20. A through hole is provided at the top of the nozzle 20, and the bottom of the conveying pipe 18 is movably disposed inside the through hole.

[0028] In this embodiment, three accommodating blocks 6 are fixedly connected to the circumferential side of the fixed shaft 11 and are arranged in an array with each other. The right side of the fixed shaft 11 is fixedly connected to the left end of the threaded rod 12. The threaded rod 12 rotates counterclockwise. The fixed shaft 11 is used to fix the three accommodating blocks 6.

[0029] In this embodiment, the heating assembly includes a glass cover 24, an air supply pipe 25, and a temperature sensor 26. The glass cover 24 is fixedly installed outside the nozzle 20. The air supply pipe 25 is fixedly connected to the top of the glass cover 24. The temperature sensor 26 is fixedly connected to the top of the inside of the glass cover 24. The inside of the glass cover 24 is used to inject hot air to dry the atomized solution and evaporate the moisture trapped inside. The temperature sensor 26 is used to detect the temperature of the hot air inside the glass cover 24, so as to facilitate the adjustment of the drying temperature. The air supply pipe 25 is used to transmit hot air, and hot air is input from external instruments into the inside of the glass cover 24 through the air supply pipe 25.

[0030] In this embodiment, a circular hole is provided at the center of the top of the glass cover 24, and the material conveying pipe 18 is fixedly installed inside the circular hole.

[0031] The working principle of this invention is as follows: A protein aqueous solution from milk and antioxidant anthocyanins are dissolved together in water and fed into the device through the feed cylinder 1. The motor 16 is started, driving the connected rotating shaft 13 to rotate, thereby causing the threaded rod 12 and the pressure regulating component to rotate counterclockwise. The speed of the motor 16 is adjusted according to the required pressure of the homogenizer; the higher the required pressure, the higher the speed, and the lower the required pressure, the lower the speed. During the counterclockwise rotation of the pressure regulating component, the elastic element 9 presses the pressure regulating plate 7 connected to the sliding block 8 against the inside of the receiving block 6. When a certain degree of centrifugal force is generated, the sliding block 8 squeezes the elastic element 9 outward, thereby causing the pressure regulating plate 7 to slide outward. The pressure regulating plate 7 changes the size of the gap between itself and the adjacent receiving block 6, thus changing the pressure of the homogenizer. That is, the faster the rotation speed, the stronger the centrifugal force, and the smaller the gap, the higher the pressure of the homogenizer, and vice versa. After the section is completed, the mixture enters the pressure regulating chamber 2 through a gap of appropriate size. Based on the pressure sensing of the pressure sensor 3 inside the pressure regulating chamber 2, the pressure is remotely adjusted and monitored in real time. According to the rotation of the thread on the surface of the threaded rod 12, the speed of the solution flowing to the right is accelerated. When the solution flows into the negative pressure tank inside the homogenizing cylinder 10, the proteins collide and become more dispersed. The homogenized solution enters the nozzle 20 through the feed pipe 18 at the bottom right side of the homogenizing cylinder 10. According to the required size of the atomized particles, the nozzle 20 is rotated by the rotating component 19. During the rotation of the nozzle 20, the solution is thrown towards the three filter screens according to the magnitude of the centrifugal force. The faster the rotation speed, the more filter screens the solution penetrates, and the finer the atomized particles. After the solution is atomized, hot air is introduced into the glass cover 24 through the air supply pipe 25 to dry the moisture inside the atomized particles, thus obtaining proteins with antioxidant functions.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A spray drying apparatus based on food protein carrier encapsulation, comprising a feed cylinder (1), characterized in that: A pressure regulating component and a homogenizing component are fixedly connected in sequence on the right side of the feed cylinder (1). A spraying component is provided at the bottom of the homogenizing component, and a heating component is provided outside the spraying component. The pressure regulating assembly includes a pressure regulating chamber (2), an annular slide rail (4), a sliding hoop (5), a receiving block (6), and a pressure regulating plate (7). The pressure regulating chamber (2) is fixedly connected to the right side of the feed cylinder (1). The inner wall of the pressure regulating chamber (2) is fixedly connected to the annular slide rail (4). The annular slide rail (4) is movably provided with a sliding hoop (5). Three receiving blocks (6) are fixedly connected inside the sliding hoop (5). Each receiving block (6) has a sliding groove inside. The inner walls of the opposite sides of the sliding groove are respectively provided with movable grooves. Each movable groove is provided with an elastic element (9). One end of each elastic element (9) is fixedly provided with a sliding block (8). The sliding block (8) is movably provided inside the movable groove. One end of the sliding block (8) is fixed on the side of the pressure regulating plate (7). The pressure regulating plate (7) is movably provided inside the sliding groove. The pressure regulating plate (7) and the receiving block (6) have the same cross-sectional shape and size. The pressure regulating plate (7) is fan-shaped. The homogenizing component includes a homogenizing cylinder (10) and a threaded rod (12). The homogenizing cylinder (10) is fixedly connected to the right side of the pressure regulating chamber (2). The inner wall of the homogenizing cylinder (10) is surrounded by four negative pressure grooves. The longitudinal cross-sectional shape of the negative pressure grooves is rectangular. The threaded rod (12) is movably arranged at the central axis position inside the homogenizing cylinder (10). Three accommodating blocks (6) are fixedly connected to the circumferential side of the fixed shaft (11) and are arranged in an array with each other. The right side of the fixed shaft (11) is fixedly connected to the left end of the threaded rod (12). The threaded rod (12) rotates counterclockwise. The right end of the threaded rod (12) is fixedly connected to a rotating shaft (13). One end of the rotating shaft (13) passes through the homogenizing cylinder (10) and the fixed seat (15) in sequence and is fixedly connected to the output end of the motor (16). The spray assembly includes a nozzle (20), a first filter (21), a second filter (22), and a third filter (23). The nozzle (20) is a hollow cylindrical structure. The nozzle (20) is movably disposed at the bottom of the homogenizing cylinder (10). The first filter (21), the second filter (22), and the third filter (23) are fixedly disposed inside the nozzle (20) from the inside to the outside. The first filter (21), the second filter (22), and the third filter (23) have a longitudinal cross-section in the shape of "」" and the mesh size of the filter is arranged from small to large.

2. The spray drying apparatus based on food protein carrier encapsulation according to claim 1, characterized in that, The pressure regulating assembly also includes a pressure sensor (3). The top of the inner wall of the pressure regulating chamber (2) is provided with an installation groove, and the pressure sensor (3) is fixedly installed inside the installation groove.

3. The spray drying apparatus based on food protein carrier encapsulation according to claim 1, characterized in that, The sliding block (8) is fixedly installed on the right side of the pressure regulating plate (7) and located in the middle position. The movement trajectory of the sliding block (8) is arc-shaped.

4. The spray drying apparatus based on food protein carrier encapsulation according to claim 1, characterized in that, The motor (16) is fixedly connected to a base (17) at its bottom. The side of the motor (16) is fixedly connected to a fixed seat (15). The fixed seat (15) has three connecting rods (14) arranged on its side. The other end of the three connecting rods (14) is fixedly connected to the outer wall of the pressure regulating chamber (2).

5. The spray drying apparatus based on food protein carrier encapsulation according to claim 1, characterized in that, The homogenizing cylinder (10) has a discharge port at the bottom right end. A conveying pipe (18) is fixedly installed at the bottom of the discharge port. A rotating component (19) is movably connected to the bottom of the conveying pipe (18). The bottom of the rotating component (19) is fixedly connected to the top of the nozzle (20). A through hole is opened at the top of the nozzle (20). The bottom of the conveying pipe (18) is movably installed inside the through hole.

6. The spray drying apparatus based on food protein carrier encapsulation according to claim 5, characterized in that, The heating assembly includes a glass cover (24), an air supply pipe (25), and a temperature sensor (26). The glass cover (24) is fixedly installed outside the nozzle (20). The air supply pipe (25) is fixedly connected to the top of the glass cover (24), and the temperature sensor (26) is fixedly connected to the top inside the glass cover (24).

7. The spray drying apparatus based on food protein carrier encapsulation according to claim 1, characterized in that, The arc length of the pressure regulating plate (7) is 1 / 6 of the circumference of the inner wall of the sliding hoop (5).

8. The spray drying apparatus based on food protein carrier encapsulation according to claim 6, characterized in that, A circular hole is provided at the center of the top of the glass cover (24), and the material conveying pipe (18) is fixedly installed inside the circular hole.

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