A high-power laser food drying device

Abstract

This utility model discloses a high-power laser food drying device, relating to the field of food drying technology. It includes a drying chamber with irradiation devices fixedly connected to both ends of the top of the chamber. This high-power laser food drying device allows for low-temperature and short-time drying, significantly preserving nutrients and achieving rapid dehydration while avoiding surface hardening common in traditional drying methods, thus improving the drying effect. It also enables food to be turned over, ensuring even drying and enhancing the overall drying efficiency. The laser's oscillation provides uniform irradiation of the food on the top of the first conveyor belt, increasing the irradiation range of the lamp. Furthermore, by incorporating a beam expander and a beam homogenizer, the beam expander increases the beam divergence angle, irradiating a larger area, while the beam homogenizer homogenizes the expanded laser beam, resulting in a more uniform energy distribution.

Description

Technical Field

[0001] This utility model relates to the field of food drying technology, and more specifically, to a high-power laser food drying device. Background Technology

[0002] In the food industry, drying is a key processing step for extending food shelf life, improving food storage convenience, and expanding food application scenarios. By removing excess moisture from food, it is possible to effectively inhibit microbial growth, slow down enzymatic reactions and oxidative spoilage, and reduce food transportation and storage costs. Therefore, efficient and high-quality food drying technology has always been a key focus of industry research and application. Currently, traditional drying methods in the food industry mostly rely on heat conduction or heat convection. By heating media such as air or metal walls, heat is transferred to the surface of the material, and then penetrates from the surface to the interior, ultimately causing the moisture to evaporate. However, this method of hot air drying mainly achieves moisture evaporation through convection heat exchange between hot air and the food surface. The heat transfer efficiency is low, resulting in excessively long drying times. Especially for foods with high moisture content or large volume, the drying process often requires several hours or even tens of hours, which seriously affects production efficiency. At the same time, the prolonged high-temperature environment can easily lead to a large loss of heat-sensitive nutrients (such as vitamins and active substances) in the food, and the food surface is prone to hardening and browning due to excessive heating, which damages the taste and appearance of the food. Utility Model Content

[0003] The main objective of this invention is to provide a high-power laser food drying device that can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A high-power laser food drying device includes a drying chamber, with irradiation devices fixedly connected to both ends of the top of the drying chamber. The drying oven includes a fixed box body. A feed inlet is fixedly connected to the top left side of the fixed box body. A first conveyor belt is installed at the upper left side of the interior of the fixed box body, and a second conveyor belt is installed at the lower right side of the interior of the fixed box body. The first conveyor belt is located above the second conveyor belt. A flipping device is fixedly connected between the first and second conveyor belts. A drive frame is installed at the lower left side of the fixed box body. A drive motor is installed inside the drive frame. A belt drive component is fixedly connected to the output end of the drive motor. One end of the belt drive component is connected to the second conveyor belt. Exhaust ports are opened on both sides of the top of the fixed box body. The exhaust ports on both sides are located at the top of the first and second conveyor belts, respectively. A discharge nozzle is fixedly connected to the lower right side of the fixed box body. The discharge nozzle is located at the right end of the second conveyor belt.

[0005] Preferably, the flipping device includes a collecting hopper, a protective baffle is fixedly connected to the top right side of the collecting hopper, a bottom frame is fixedly connected to both ends of the bottom of the collecting hopper, a drive shaft is rotatably installed at the lower end of the bottom frame, a plurality of partition plates are fixedly connected to the outer surface of the drive shaft, the collecting hopper is fixedly installed inside the fixed box and located at the right end of the first conveyor belt, and the partition plates are located at the top of the left end of the second conveyor belt.

[0006] Preferably, the irradiation device includes a support frame, a rotating motor is fixedly connected to the top of the support frame, a rotating shaft is rotatably mounted on the lower end of the support frame, the support frame is fixedly mounted on the top of the fixed housing, a connecting frame is fixedly connected to the outer surface of the rotating shaft, a lampshade is fixedly connected to the bottom of the connecting frame, and the connecting frame is movably mounted on the top of the fixed housing.

[0007] Preferably, the output end of the rotating motor is fixedly connected to a rotating shaft, the lower end of the rotating shaft is fixedly connected to a fixed sleeve, the top surface of the rotating shaft is fixedly connected to a top frame, the upper end of the top frame is movably sleeved with a movable sleeve, the top of the movable sleeve is fixedly connected to a fixed rod, and the fixed sleeve is movably sleeved on the outer surface of the fixed rod.

[0008] Preferably, a plurality of lamp tubes are fixedly connected inside the lamp cover, a laser is fixedly connected to the upper end of the lamp tube, a plurality of beam expanding lenses are fixedly connected to the lower end of the lamp tube, a light-diffusing lens is fixedly connected to the bottom of the lamp tube, and a glass lamp plate is fixedly connected to the bottom of the lamp cover.

[0009] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a connecting rack to irradiate and dry food, laser drying can complete the drying process at low temperature and in a short time, greatly preserving nutrients and achieving rapid dehydration. This ensures both the surface texture (crispness) and does not affect the internal moisture and softness. At the same time, it avoids the "surface hardening" of traditional drying and improves the drying effect of the device. 2. By setting up a turning device, the food falls into the interior of the partition plate and turns over as the partition plate rotates, then slides onto the top of the second conveyor belt, realizing the turning of the food, so that the food is dried evenly and the drying effect is improved. 3. By controlling the circular motion of the fixed sleeve, the connecting frame is swung left and right. The laser swings to evenly irradiate the food on the top of the first conveyor belt, thereby increasing the irradiation range of the lampshade. 4. By setting up a beam expander and a beam homogenizer, the beam expander increases the beam divergence angle and illuminates a larger area, while the beam homogenizer can homogenize the expanded laser beam, making the energy distribution of the laser beam more uniform. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the drying oven structure of this utility model; Figure 3 This is a schematic diagram of the flipping device of this utility model; Figure 4 This is a schematic diagram of the irradiation device of this utility model; Figure 5 This is a schematic diagram of the lamp tube structure of this utility model.

[0011] The attached figures are labeled as follows: 1. Drying oven; 2. Irradiation device; 3. Turning device; 11. Fixed box body; 12. Feed inlet; 13. Drive frame; 14. First conveyor belt; 15. Second conveyor belt; 16. Drive motor; 17. Belt drive component; 18. Exhaust port; 19. Discharge nozzle; 21. Support frame; 22. Rotating motor; 23. Rotating shaft; 24. Fixed sleeve; 25. Rotating shaft; 26. Connecting frame; 27. Top frame; 28. Movable sleeve; 29. ​​Fixed rod; 261. Lamp cover; 262. Lamp tube; 263. Laser; 264. Beam expander lens; 265. Beam homogenizer lens; 266. Glass lamp plate; 31. Collection hopper; 32. Protective baffle; 33. Bottom frame; 34. Drive shaft; 35. Divider plate. Detailed Implementation

[0012] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0013] As attached Figure 1 To be continued Figure 5 As shown, an embodiment of this utility model provides a high-power laser food drying device, including a drying chamber 1, an irradiation device 2, and a turning device 3. The irradiation device 2 is fixedly connected to both ends of the top of the drying chamber 1. like Figure 2As shown, the drying chamber 1 includes a fixed chamber 11, a first conveyor belt 14 and a second conveyor belt 15. A feed inlet 12 is fixedly connected to the top left side of the fixed chamber 11. The first conveyor belt 14 is located at the upper left side of the interior of the fixed chamber 11, and the second conveyor belt 15 is located at the lower right side of the interior of the fixed chamber 11. The first conveyor belt 14 is located above the second conveyor belt 15. A turning device 3 is fixedly connected between the first conveyor belt 14 and the second conveyor belt 15. A drive frame 13 is located at the lower left side of the fixed chamber 11. A drive motor 16 is located inside the drive frame 13. A belt drive component 17 is fixedly connected to the output end of the drive motor 16. One end of the belt drive component 17 is connected to the second conveyor belt 15. Exhaust ports 18 are opened on both sides of the top of the fixed chamber 11. The exhaust ports 18 are located at the top of the first conveyor belt 14 and the second conveyor belt 15, respectively. A discharge nozzle 19 is fixedly connected to the lower right side of the fixed chamber 11. The discharge nozzle 19 is located at the right end of the second conveyor belt 15.

[0014] Specifically, the exhaust port 18 facilitates the discharge of water vapor, thereby facilitating the rapid drying of food.

[0015] like Figure 3 As shown, the flipping device 3 includes a collection hopper 31 and a partition plate 35. A protective baffle 32 is fixedly connected to the top right side of the collection hopper 31. Both ends of the bottom of the collection hopper 31 are fixedly connected to a bottom frame 33. A drive shaft 34 is rotatably mounted on the lower end of the bottom frame 33. The outer surface of the drive shaft 34 is fixedly connected to multiple partition plates 35. The collection hopper 31 is fixedly installed inside the fixed box 11 and located at the right end of the first conveyor belt 14. The partition plate 35 is located at the top left end of the second conveyor belt 15.

[0016] Specifically, the drive motor 16 controls the second conveyor belt 15 to transport food via the belt drive component 17. At the same time, one end of the drive shaft 34 is connected to the second conveyor belt 15 via the belt drive component 17. When the drive motor 16 controls the second conveyor belt 15 to transport food, the drive shaft 34 drives the partition plate 35 to rotate, so that the food is transported through the first conveyor belt 14 into the inside of the collection hopper 31. Through the rotation of multiple partition plates 35, the food falls into the inside of the partition plates 35 and, following the rotation of the partition plates 35, is flipped over and then slides onto the top of the second conveyor belt 15, thus realizing the turning of the food.

[0017] like Figure 4 As shown, the irradiation device 2 includes a support frame 21, a rotating motor 22 is fixedly connected to the top of the support frame 21, a rotating shaft 25 is rotatably mounted on the lower end of the support frame 21, the support frame 21 is fixedly mounted on the top of the fixed housing 11, a connecting frame 26 is fixedly connected to the outer surface of the rotating shaft 25, a lamp cover 261 is fixedly connected to the bottom of the connecting frame 26, and the connecting frame 26 is movably mounted on the top of the fixed housing 11.

[0018] The output end of the rotating motor 22 is fixedly connected to a rotating shaft 23, the lower end of the rotating shaft 23 is fixedly connected to a fixed sleeve 24, the top of the outer surface of the rotating shaft 25 is fixedly connected to a top frame 27, the upper end of the top frame 27 is movably sleeved with a movable sleeve 28, the top of the movable sleeve 28 is fixedly connected to a fixed rod 29, and the fixed sleeve 24 is movably sleeved on the outer surface of the fixed rod 29.

[0019] Specifically, the rotating motor 22 controls the rotating shaft 23 to drive the fixed sleeve 24 to rotate in a circular motion and limits the fixed rod 29, so that the movable sleeve 28 slides on the top of the top frame 27. At the same time, the fixed rod 29 moves up and down inside the fixed sleeve 24 following the position of the movable sleeve 28. When the movable sleeve 28 moves with the fixed sleeve 24, the top frame 27 drives the rotating shaft 25 to rotate at the lower end of the support frame 21, thereby controlling the connecting frame 26 to swing left and right, increasing the illumination range of the lampshade 261.

[0020] like Figure 5 As shown, multiple lamp tubes 262 are fixedly connected inside the lamp cover 261. A laser 263 is fixedly connected to the upper end of the lamp tube 262. Multiple beam expanders 264 are fixedly connected to the lower end of the lamp tube 262. A light-diffusing lens 265 is fixedly connected to the bottom of the lamp tube 262. A glass lamp plate 266 is fixedly connected to the bottom of the lamp cover 261.

[0021] Specifically, the power of laser 263 is adjusted according to the type of food. The laser emitted by laser 263 passes through beam expander lens 264 and homogenizer lens 265. Beam expander lens 264 can be designed using traditional optical design to create a lens group with the functions of beam expansion and increasing the beam divergence angle. The main function of increasing the beam divergence angle is to enable the laser of this invention to irradiate a larger area. There are many solutions to this lens design structure, which is a basic technology in the field of optics, and the specific lens group design will not be given in this invention. Homogenizer lens 265 homogenizes the expanded laser beam, making the energy distribution of the laser beam more uniform. The expanded and homogenized laser irradiates the surface of the food. The laser irradiation raises the temperature of the irradiated surface and the surrounding air, causing moisture to evaporate, thus achieving drying. During the laser irradiation drying process, there is no air circulation, so dust and impurities are not brought onto the food, achieving "localized rapid dehydration," ensuring both the crispness of the surface and the internal moisture and softness.

[0022] The working process of this utility model is as follows: In use, food is fed into the top of the first conveyor belt 14 through the feed inlet 12. The food is then conveyed to the right by the first conveyor belt 14. At this time, the rotating motor 22 controls the rotating shaft 23 to drive the fixed sleeve 24 to rotate in a circular motion and limits the fixed rod 29. The fixed sleeve 24 pushes the movable sleeve 28 to slide on the top of the top frame 27. At the same time, the fixed rod 29 moves up and down inside the fixed sleeve 24 following the position of the movable sleeve 28. When the movable sleeve 28 moves with the fixed sleeve 24, it pushes the top frame 27 to both sides, causing the rotating shaft 25 to rotate at the lower end of the support frame 21. Through the circular motion of the fixed sleeve 24, the connecting frame 26 is controlled to swing left and right. The laser 263 swings to evenly irradiate the food on the top of the first conveyor belt 14. Food is transported to the inside of the collection hopper 31 by the first conveyor belt 14, and by the rotation of multiple partition plates 35, the food falls into the inside of the partition plates 35, and is turned over as the partition plates 35 rotate, and slides to the top of the second conveyor belt 15, thus realizing the turning of food. The irradiation device 2 at the top of the second conveyor belt 15 irradiates the back of the food again to dry it. The high-energy laser makes the moisture inside the material reach the evaporation temperature in a short time. Water vapor is discharged through the exhaust port 18. After the food is dried, it is fed through the feeding nozzle 19.

[0023] Finally, it should be noted that: the accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-power laser food drying device, comprising a drying chamber (1), characterized in that: Irradiation devices (2) are fixedly connected to both ends of the top of the drying oven (1); The drying oven (1) includes a fixed box body (11), with a feed inlet (12) fixedly connected to the top left side of the fixed box body (11). A first conveyor belt (14) is provided at the upper left side of the interior of the fixed box body (11), and a second conveyor belt (15) is provided at the lower right side of the interior of the fixed box body (11). The first conveyor belt (14) is located above the second conveyor belt (15). A turning device (3) is fixedly connected between the first conveyor belt (14) and the second conveyor belt (15). A drive frame (13) is provided at the lower left side of the fixed box body (11). The drive frame (13) is equipped with a drive motor (16), and the output end of the drive motor (16) is fixedly connected to a belt drive component (17). One end of the belt drive component (17) is connected to the second conveyor belt (15). The top of the fixed box (11) is provided with exhaust ports (18) on both sides. The exhaust ports (18) on both sides are located on the top of the first conveyor belt (14) and the second conveyor belt (15) respectively. The lower right end of the fixed box (11) is fixedly connected to a discharge nozzle (19), which is located at the right end of the second conveyor belt (15).

2. The high-power laser food drying device according to claim 1, characterized in that: The flipping device (3) includes a collection hopper (31), a protective baffle (32) is fixedly connected to the top right side of the collection hopper (31), and a bottom frame (33) is fixedly connected to both ends of the bottom of the collection hopper (31). A drive shaft (34) is rotatably installed at the lower end of the bottom frame (33), and multiple partition plates (35) are fixedly connected to the outer surface of the drive shaft (34). The collection hopper (31) is fixedly installed inside the fixed box (11) and located at the right end of the first conveyor belt (14). The partition plates (35) are located at the top left end of the second conveyor belt (15).

3. The high-power laser food drying device according to claim 1, characterized in that: The irradiation device (2) includes a support frame (21), a rotating motor (22) is fixedly connected to the top of the support frame (21), a rotating shaft (25) is rotatably installed at the lower end of the support frame (21), the support frame (21) is fixedly installed on the top of the fixed box (11), a connecting frame (26) is fixedly connected to the outer surface of the rotating shaft (25), a lampshade (261) is fixedly connected to the bottom of the connecting frame (26), and the connecting frame (26) is movably installed on the top of the fixed box (11).

4. The high-power laser food drying device according to claim 3, characterized in that: The output end of the rotating motor (22) is fixedly connected to a rotating shaft (23), the lower end of the rotating shaft (23) is fixedly connected to a fixed sleeve (24), the top of the outer surface of the rotating shaft (25) is fixedly connected to a top frame (27), the upper end of the top frame (27) is movably sleeved with a movable sleeve (28), the top of the movable sleeve (28) is fixedly connected to a fixed rod (29), and the fixed sleeve (24) is movably sleeved on the outer surface of the fixed rod (29).

5. A high-power laser food drying device according to claim 3, characterized in that: Multiple lamp tubes (262) are fixedly connected inside the lamp cover (261). A laser (263) is fixedly connected to the upper end of the lamp tube (262). Multiple beam expanders (264) are fixedly connected to the lower end of the lamp tube (262). A light-diffusing lens (265) is fixedly connected to the bottom of the lamp tube (262). A glass lamp plate (266) is fixedly connected to the bottom of the lamp cover (261).

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