A food processing drying apparatus

Abstract

The utility model relates to the field of drying device discloses a food processing drying device, including the box, a plurality of transmission devices are fixedly arranged outside the box, the box one side is fixedly provided with the reflux pipeline, the box upper layer is fixedly provided with the hot -blast drying layer, the box middle layer is fixedly provided with the microwave drying layer, the microwave drying layer upper surface is fixedly connected with the microwave generator, two microwave suppressors are fixedly arranged in the microwave drying layer both ends, the box lower layer is fixedly provided with the cooling layer, the box one side is fixedly provided with the control panel. In the utility model, using three -layer structure, adopts two kinds of drying mode of hot -blast and microwave, can quickly dry from the outside to the inside food and complete, uses the cooling layer to prevent the residual heat to continue the effect and leads to material over -dry, carbonization, convenient and fast qualitative, uses the reflux pipeline and reuses the excess heat.

Description

Technical Field

[0001] This utility model relates to the field of drying devices, and more particularly to a food processing drying device. Background Technology

[0002] A food drying device is a device that accelerates the evaporation of moisture from food by artificially controlling temperature, humidity, and airflow. Its core purpose is to reduce the moisture content of food to a level where microorganisms cannot survive and reproduce, while preserving as much of the food's nutrients, color, and flavor as possible, thereby achieving long-term preservation.

[0003] Existing food drying equipment typically works by heating air to reduce its relative humidity, and then using a fan to circulate this warm air over the surface of the food, carrying away the water vapor that evaporates from the food, thereby achieving drying.

[0004] In the process of realizing this application, the inventors discovered the following problems with the prior art: simply drying with hot air for a short time will result in insufficient drying, or the temperature will be too high and cause scorching. The drying process is slow for a long time, and prolonged heating will cause some nutrients to be lost.

[0005] Therefore, those skilled in the art have provided a food processing and drying apparatus to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a food processing drying device that enables efficient dehydration and continuous production.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A food processing and drying device includes a housing, with multiple transmission devices fixedly installed on the outside of the housing, a backflow pipe fixedly installed on one side of the housing, a hot air drying layer fixedly installed on the upper layer of the housing, a microwave drying layer fixedly installed in the middle layer of the housing, a microwave generator fixedly connected to the top of the microwave drying layer, two microwave suppressors fixedly installed at both ends of the microwave drying layer, a cooling layer fixedly installed on the lower layer of the housing, and a control panel fixedly installed on one side of the housing.

[0008] Furthermore, the plurality of transmission devices include a baffle, one end of which is rotatably provided with a drive pulley, and the other end of which is rotatably provided with a driven pulley, and one end of the drive pulley is fixedly connected to a servo motor.

[0009] Furthermore, a plurality of exhaust fans are fixedly installed at the upper end of the reflux pipe, and a plurality of intake fans are fixedly installed at the lower end of the reflux pipe.

[0010] Furthermore, the hot air drying layer includes a hot air drying conveyor belt, which is fixed in the middle of the transmission device. A heating pipe is fixedly installed on the upper layer of the hot air drying layer, and a heat-resistant fan is fixedly installed on the heating pipe. A dustproof ventilation cover is fixedly installed on the top layer of the hot air drying layer, and a heat-resistant fan is installed below the dustproof ventilation cover. A backflow pipe is fixedly installed on one side of the dustproof ventilation cover. A hot air exhaust pipe is fixedly installed at the lower end of the hot air drying layer, and a hot air exhaust fan is fixedly installed on the hot air exhaust pipe.

[0011] Furthermore, a microwave drying conveyor belt is provided through the microwave drying layer, and the microwave drying conveyor belt is located in the middle of the transmission device. A microwave exhaust pipe is fixedly provided on the upper layer of the microwave drying layer, and a microwave exhaust fan is fixedly provided on the microwave exhaust pipe. Multiple microwave emission ports are fixedly opened at the upper end of the microwave drying layer.

[0012] Furthermore, a waveguide is fixedly connected to the upper end of the microwave emitting port, a magnetron is fixedly connected to one side of the waveguide, a filament electrode lead is fixedly provided on the other side of the magnetron, a wind guide is fixedly connected to one end of the magnetron, and a cooling fan is fixedly connected to the other end of the wind guide.

[0013] Furthermore, the two microwave suppressors include a microwave reflecting layer, and a microwave absorbing layer is fixedly disposed on one side of the microwave reflecting layer.

[0014] Furthermore, the cooling layer includes a cooling conveyor belt, which is disposed in the middle of the transmission device. Multiple cooling fans are fixedly disposed on one side of the cooling layer, a cooling air inlet shroud is fixedly disposed on the same side of the cooling layer, and a backflow pipe is fixedly connected to the other side of the cooling layer.

[0015] This utility model has the following beneficial effects: 1. The food processing drying device proposed in this utility model has a three-layer conveyor belt design. The material flows from top to bottom by gravity, realizing the fully automated continuous operation of feeding, drying, cooling and discharging, which greatly improves production efficiency. The vertical structure saves plane space and has a compact layout. The last cooling layer prevents the material from being too dry and charring.

[0016] 2. The food processing drying device proposed in this utility model uses high-temperature hot air in the first layer to achieve preliminary dehydration of the material surface, removing a large amount of surface moisture. The second layer uses microwave drying, using a microwave generator to directly act on the water molecules inside the material, thereby achieving rapid and uniform heating from the inside out, greatly shortening the drying time and solving the problem of uneven drying in traditional drying. Attached Figure Description

[0017] Figure 1This is a schematic diagram of an overall food processing and drying device according to the present invention; Figure 2 This is a schematic cross-sectional view of a food processing and drying device according to the present invention. Figure 3 This is a schematic diagram of the backflow pipe of a food processing and drying device according to the present invention; Figure 4 This is a schematic diagram of the transmission device of a food processing and drying apparatus according to the present invention; Figure 5 This is a schematic diagram of the hot air drying layer of a food processing and drying device according to the present invention; Figure 6 This is a schematic diagram of the bottom of the hot air drying layer of a food processing and drying device according to the present invention; Figure 7 This is a schematic diagram of the microwave drying layer of a food processing and drying device according to the present invention; Figure 8 This is a schematic diagram of a microwave generator for a food processing and drying device according to the present invention; Figure 9 This is a schematic diagram of a microwave suppressor for a food processing and drying device according to the present invention; Figure 10 This is a schematic diagram of the cooling layer of a food processing and drying device according to the present invention.

[0018] Legend: 1. Transmission device; 2. Housing; 3. Reverse flow duct; 4. Hot air drying layer; 5. Microwave drying layer; 6. Microwave generator; 7. Microwave suppressor; 8. Cooling layer; 9. Control panel; 101. Servo motor; 102. Drive pulley; 103. Driven pulley; 104. Baffle; 301. Exhaust fan; 302. Intake fan; 401. Hot air drying conveyor belt; 402. Heating element; 403. Heat-resistant fan; 404. Dustproof ventilation cover ; 405. Hot air exhaust pipe; 406. Hot air exhaust fan; 501. Microwave drying conveyor belt; 502. Microwave exhaust pipe; 503. Microwave exhaust fan; 504. Microwave transmitter port; 601. Magnetron; 602. Filament electrode lead wire; 603. Waveguide; 604. Air guide; 605. Cooling fan; 701. Microwave reflective layer; 702. Microwave absorption layer; 801. Cooling conveyor belt; 802. Cooling fan; 803. Cooling air inlet hood. Detailed Implementation

[0019] 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.

[0020] Reference Figure 1 , Figure 2 An embodiment of this utility model provides a food processing and drying device, including a box body 2, multiple transmission devices 1 fixedly installed on the outside of the box body 2, a backflow pipe 3 fixedly installed on one side of the box body 2, a hot air drying layer 4 fixedly installed on the upper layer of the box body 2, a microwave drying layer 5 fixedly installed in the middle layer of the box body 2, a microwave generator 6 fixedly connected on the microwave drying layer 5, two microwave suppressors 7 fixedly installed at both ends of the microwave drying layer 5, a cooling layer 8 fixedly installed on the lower layer of the box body 2, and a control panel 9 fixedly installed on one side of the box body 2. Specifically, a three-layer structure is used. The transmission device 1 provides the power to transport the material. The upper layer uses hot air drying to pre-dry the material. The middle layer uses microwave drying, which uses a microwave generator 6 to dry the material from the inside out. The lower layer uses dry cold air to dry the material to prevent it from scorching. The heat absorbed by the cooling layer 8 is transferred to the upper hot air drying layer 4 through the counterflow pipe 3 to achieve heat reuse and reduce loss. The control panel 9 controls the operation of each layer.

[0021] Reference Figure 3 Multiple transmission devices 1 include a baffle 104, a drive pulley 102 is rotatably mounted on one end of the baffle 104, a driven pulley 103 is rotatably mounted on the other end of the baffle 104, and a servo motor 101 is fixedly connected to one end of the drive pulley 102. Specifically, a servo motor 101 drives the active pulley 102 to drive the driven pulley 103 to provide power to all conveyor belts, and a baffle 104 is used to isolate the servo motor 101 from the conveyor belt to prevent contamination of materials.

[0022] Reference Figure 4 Multiple exhaust fans 301 are fixedly installed at the upper end of the reflux pipe 3, and multiple intake fans 302 are fixedly installed at the lower end of the reflux pipe 3. Specifically, intake fan 302 and exhaust fan 301 are used to transfer the heat absorbed by the dry air back to the upper layer for reuse, thereby reducing overall energy consumption.

[0023] Reference Figure 5 , Figure 6The hot air drying layer 4 includes a hot air drying conveyor belt 401, which is located in the middle of the transmission device 1. A heating pipe 402 is fixedly installed on the upper layer of the hot air drying layer 4. The heating pipe 402 is on the hot air drying conveyor belt 401. A heat-resistant fan 403 is fixedly installed on the heating pipe 402. A dustproof ventilation cover 404 is fixedly installed on the top layer of the hot air drying layer 4. A heat-resistant fan 403 is located below the dustproof ventilation cover 404. A backflow pipe 3 is fixedly installed on one side of the dustproof ventilation cover 404. A hot air exhaust pipe 405 is fixedly installed at the lower end of the hot air drying layer 4. A hot air exhaust fan 406 is fixedly installed on the hot air exhaust pipe 405. Specifically, the hot air drying conveyor belt 401 is a perforated conveyor belt for the circulation of hot air in the overall structure. A heat-resistant fan is used to pass clean air through the heating pipe 402 and then act on the surface of the material on the hot air drying conveyor belt 401. The humid air that carries away moisture from the material surface is discharged through the hot air exhaust fan 406 at the bottom.

[0024] Reference Figure 7 , Figure 9 A microwave drying conveyor belt 501 is installed through the microwave drying layer 5. The microwave drying conveyor belt 501 is located in the middle of the transmission device 1. A microwave exhaust pipe 502 is fixedly installed on the upper layer of the microwave drying layer 5. A microwave exhaust fan 503 is fixedly installed on the microwave exhaust pipe 502. Multiple microwave emission ports 504 are fixedly opened at the upper end of the microwave drying layer 5. Specifically, microwaves are generated by microwave generator 6 and applied to the material on microwave drying conveyor belt 501 to directly heat the moisture inside the material, achieving rapid and uniform heating from the inside out. The moisture generated during the process evaporates into the air and is discharged by microwave exhaust fan 503.

[0025] Reference Figure 8 A waveguide 603 is fixedly connected to the upper end of the microwave transmitter 504. A magnetron 601 is fixedly connected to one side of the waveguide 603. A filament electrode lead wire 602 is fixedly provided on the other side of the magnetron 601. A wind guide 604 is fixedly connected to one end of the magnetron 601. A cooling fan 605 is fixedly connected to the other end of the wind guide 604. Specifically, an external microwave power supply is connected to the filament electrode lead 602 to power the magnetron 601. The magnetron 601 generates microwaves, which are efficiently transmitted to the microwave drying conveyor belt 501 via the waveguide 603. The heat generated in the process is dissipated by the air guide 604 and the cooling fan 605.

[0026] Reference Figure 9 The two microwave suppressors 7 include a microwave reflective layer 701, and a microwave absorption layer 702 is fixedly disposed on one side of the microwave reflective layer 701. Specifically, excess microwaves generated during the microwave drying process are reflected and absorbed by the microwave suppressor 7. The microwave reflector layer 701 reflects microwaves back into the drying area, while excess microwaves that cannot be reflected are absorbed by the microwave absorber layer 702.

[0027] Reference Figure 10 The cooling layer 8 includes a cooling conveyor belt 801, which is located in the middle of the transmission device 1. Multiple cooling fans 802 are fixedly installed on one side of the cooling layer 8, and a cooling air inlet shroud 803 is fixedly installed on the same side of the cooling layer 8. A backflow pipe 3 is fixedly connected to the other side of the cooling layer 8. Specifically, the cooling conveyor belt 801 cools the material dried in the microwave drying layer, and the cooling fan 802 applies clean and dry air to the material to absorb heat. After absorbing the heat, the air returns to the upper hot air drying layer 4 through the recirculation pipe 3 for reuse.

[0028] Working principle: The conveyor belt is powered by a servo motor 101, with each layer driven by an independent servo motor 101. The material first enters the upper hot air drying layer 4, where it is heated by the heating tube 402. The heat-resistant fan 403 blows clean air through the heating tube 402 onto the material on the hot air drying conveyor belt 401. The hot air exhaust fan 406 at the bottom of the conveyor belt then exhausts the hot air that has absorbed the moisture. The preliminarily dried material falls into the middle microwave drying layer 5, where the microwave generator 6 generates microwaves to heat the moisture inside the material, achieving drying from the inside out. The water vapor generated during the process is exhausted by the microwave exhaust fan 503. Microwave suppressors 7 are installed on both sides to prevent microwave leakage from harming personnel. Finally, the material falls into the lower cooling layer 8, where the cooling fan 802 blows clean, dry air onto the material to remove excess heat. The hot air is then transported back to the upper layer by the recirculation pipe 3 for reuse, reducing energy consumption. All fans, servo motors 101, and microwave generators 6 are monitored and controlled by the control panel 9. The control system is based on mature technology and is not part of this innovative design, so it will not be described in detail here.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 food processing and drying apparatus, comprising a housing (2), characterized in that: Multiple transmission devices (1) are fixedly installed on the outside of the box (2). A reflux pipe (3) is fixedly installed on one side of the box (2). A hot air drying layer (4) is fixedly installed on the upper layer of the box (2). A microwave drying layer (5) is fixedly installed in the middle layer of the box (2). A microwave generator (6) is fixedly connected on the microwave drying layer (5). Two microwave suppressors (7) are fixedly installed at both ends of the microwave drying layer (5). A cooling layer (8) is fixedly installed on the lower layer of the box (2). A control panel (9) is fixedly installed on one side of the box (2).

2. The food processing and drying apparatus according to claim 1, characterized in that: The multiple transmission devices (1) include a baffle (104), one end of which is rotatably provided with a drive pulley (102), and the other end of which is rotatably provided with a driven pulley (103). One end of the drive pulley (102) is fixedly connected to a servo motor (101).

3. The food processing and drying apparatus according to claim 1, characterized in that: Multiple exhaust fans (301) are fixedly installed at the upper end of the reflux pipe (3), and multiple intake fans (302) are fixedly installed at the lower end of the reflux pipe (3).

4. The food processing and drying apparatus according to claim 1, characterized in that: The hot air drying layer (4) includes a hot air drying conveyor belt (401), which is located in the middle of the transmission device (1). A heating tube (402) is fixedly installed on the upper layer of the hot air drying layer (4). The heating tube (402) is on the hot air drying conveyor belt (401). A heat-resistant fan (403) is fixedly installed on the heating tube (402). A dustproof ventilation cover (404) is fixedly installed on the top layer of the hot air drying layer (4). A heat-resistant fan (403) is located below the dustproof ventilation cover (404). A backflow pipe (3) is fixedly installed on one side of the dustproof ventilation cover (404). A hot air exhaust pipe (405) is fixedly installed at the lower end of the hot air drying layer (4). A hot air exhaust fan (406) is fixedly installed on the hot air exhaust pipe (405).

5. The food processing and drying apparatus according to claim 1, characterized in that: The microwave drying layer (5) is provided with a microwave drying conveyor belt (501) running through it. The microwave drying conveyor belt (501) is located in the middle of the transmission device (1). A microwave exhaust pipe (502) is fixedly installed on the upper layer of the microwave drying layer (5). A microwave exhaust fan (503) is fixedly installed on the microwave exhaust pipe (502). Multiple microwave emission ports (504) are fixedly opened at the upper end of the microwave drying layer (5).

6. The food processing and drying apparatus according to claim 5, characterized in that: A waveguide (603) is fixedly connected to the upper end of the microwave transmitter (504). A magnetron (601) is fixedly connected to one side of the waveguide (603). A filament electrode lead wire (602) is fixedly provided on the other side of the magnetron (601). A wind guide (604) is fixedly connected to one end of the magnetron (601). A cooling fan (605) is fixedly connected to the other end of the wind guide (604).

7. A food processing and drying apparatus according to claim 4, characterized in that: The two microwave suppressors (7) include a microwave reflective layer (701), and a microwave absorbing layer (702) is fixedly disposed on one side of the microwave reflective layer (701).

8. The food processing and drying apparatus according to claim 1, characterized in that: The cooling layer (8) includes a cooling conveyor belt (801), which is located in the middle of the transmission device (1). Multiple cooling fans (802) are fixedly installed on one side of the cooling layer (8), and a cooling air inlet hood (803) is fixedly installed on the same side of the cooling layer (8). A backflow pipe (3) is fixedly connected to the other side of the cooling layer (8).

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