A raw material soaking device for rice crust production and a soaking method thereof

Abstract

The present application relates to the technical field of rice crust production, and particularly relates to a raw material soaking device for rice crust production and a soaking method thereof, which comprises a soaking tank, a material turning mechanism, an ultrasonic generator and a material discharging assembly, a supporting frame is installed on the soaking tank, and the material turning mechanism is arranged inside the soaking tank. After raw materials and soaking liquid are added into the soaking tank, the raw materials are continuously stirred by the material turning mechanism, the accumulation of the raw materials in traditional soaking is broken, the water and the raw materials are fully contacted, high-frequency vibration is generated by the ultrasonic generator, micro-bubbles are formed in the liquid and are instantaneously broken, strong impact force is generated, the soaking time is shortened, the bubbles are released by the air blowing mechanism, convection is formed and the raw materials are prevented from sinking to the bottom, the soaking uniformity is further enhanced, multi-angle material turning is combined with air blowing, local over-soaking or insufficient soaking is avoided, the water content of the raw materials in the whole tank is ensured to be consistent, and the processing quality stability is improved.

Description

Technical Field

[0001] This invention relates to the field of rice crust production technology, and in particular to a raw material soaking device and soaking method for rice crust production. Background Technology

[0002] Rice crust is a layer of rice grains that sticks tightly to the pot and hardens into a clump when rice is cooked. The main ingredients include glutinous rice, regular rice, millet, soybeans, and corn flour. It is believed to have stomach-strengthening and digestive benefits. In the production of glutinous rice crust, the glutinous rice needs to be soaked in a soaking tank for 24 hours to soften it. After soaking, the rice is rinsed multiple times in the soaking tank. Traditional glutinous rice crust production involves several steps in the initial processing of the glutinous rice, such as soaking, rinsing, and draining.

[0003] A soaking and cleaning device for producing glutinous rice crusts, disclosed in CN219025191U, includes a box body with several support rods evenly spaced at the bottom. A drain trough is located on the upper side of the support rods inside the box body. Several drain holes are evenly spaced on the lower surface of the drain trough. A drain mesh is located at the upper end of the drain trough, and several support blocks are evenly spaced between the drain mesh and the bottom of the drain trough. A cover is located at the upper end of the box body, and the cover is plugged into the box body. A motor is located on the upper surface of the cover, and a rotating shaft is located at the lower end of the cover. The rotating shaft passes through the lower surface of the cover and connects to the motor. Spiral blades are arranged around the circumference of the rotating shaft. This device effectively solves the problem in existing technologies where manual processing of glutinous rice in the early stages of glutinous rice crust production is time-consuming, labor-intensive, and less efficient than mechanical operation. However, existing soaking devices still rely on natural soaking, allowing water to slowly penetrate the glutinous rice, which requires a long soaking time and results in low soaking efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problem in the existing technology that the raw materials are naturally soaked, allowing water to slowly penetrate the glutinous rice, which requires a long soaking time and has low soaking efficiency. The invention provides a raw material soaking device for making rice crusts, which solves the problems of low efficiency, high energy consumption and unstable quality of traditional processes through a triple-enhanced soaking mechanism of "mechanical + physical + airflow".

[0005] To achieve the above objectives, the present invention proposes a raw material soaking device for producing rice crusts, comprising a soaking tank, a turning mechanism, an ultrasonic generator, and a discharging assembly. A support frame is mounted on the soaking tank; the turning mechanism is disposed inside the soaking tank and is equipped with a drive assembly; the ultrasonic generator is mounted on the support frame, and multiple ultrasonic transducers connected to the ultrasonic generator are disposed inside the soaking tank; an air-blowing mechanism is connected to the turning mechanism; and the discharging assembly is connected to the bottom of the soaking tank. The turning mechanism is used to turn the raw materials inside the soaking tank, and the ultrasonic transducers and the air-blowing mechanism are used to accelerate the soaking efficiency of the raw materials.

[0006] As a further description of the above technical solution: the discharge end of the discharge component is connected to the drying conveying mechanism, and a support plate is connected below the drying conveying mechanism.

[0007] As a further description of the above technical solution: the flipping mechanism includes a mounting plate, one side of which is connected to a first flipping component via a first connecting plate, and the other side of which is connected to a second flipping component via a second connecting plate. The second flipping component has the same structure as the first flipping component.

[0008] As a further description of the above technical solution: the driving component includes a driving motor, the driving motor is connected to the soaking tank through a fixed base, the driving end of the driving motor is connected to a driving wheel, the driving wheel is connected to a transmission wheel, the transmission wheel is fixed on a driving shaft, the driving shaft is connected to a material turning mechanism, and the driving shaft is a hollow shaft.

[0009] As a further description of the above technical solution: the air blowing mechanism includes a blower and a stirring plate. The blower is connected to the top of the drive shaft through a blower pipe. The stirring plate is mounted on the drive shaft. The stirring plate is provided with multiple air outlet pipes. An air inlet pipe is provided on one side of the blower.

[0010] As a further description of the above technical solution: the discharge assembly includes a discharge pipe, the upper end of which is connected to the discharge end of the soaking tank, a filter hopper is provided inside the discharge pipe, water outlet pipes are provided on both sides of the filter hopper, and a discharge pipe is provided below the filter hopper.

[0011] As a further description of the above technical solution: the drying conveying mechanism includes an upper conveying cylinder and a lower conveying cylinder. The upper conveying cylinder is connected to the discharge assembly through a feed pipe, and the lower part of the upper conveying cylinder is connected to the lower conveying cylinder through a guide pipe. Both the upper and lower conveying cylinders are equipped with stirring and transmission shafts, and stirring and pushing fan blades are provided on the stirring and transmission shafts. The stirring and transmission shafts are connected to a driving component. Both the upper and lower conveying cylinders are fitted with heating cylinders, and heating wires are provided inside the heating cylinders.

[0012] As a further description of the above technical solution: the first tilting component includes a tilting motor, one side of which is connected to the first connecting plate, the driving end of which is connected to a tilting rod, and a tilting auger is provided on the tilting rod.

[0013] As a further description of the above technical solution: a feeding hopper is provided on one side of the soaking tank, an overflow pipe is provided on the other side of the soaking tank, a filter element is provided inside the overflow pipe, and a control box is provided on the support frame.

[0014] The above technical solution has the following advantages or beneficial effects:

[0015] This invention involves adding raw materials and soaking liquid into a soaking tank, then continuously stirring the raw materials through a rotating material-turning mechanism. This breaks up the accumulation of raw materials in traditional soaking processes, allowing the water and raw materials to come into full contact. High-frequency vibrations are generated by an ultrasonic transducer, forming tiny bubbles in the liquid that burst instantly, producing a powerful impact force and shortening the soaking time. The air-blowing mechanism releases the bubbles, creating convection and preventing the raw materials from settling to the bottom, further enhancing the uniformity of soaking. The combination of multi-angle material turning and air-blowing avoids localized over- or under-soaking, ensuring consistent moisture content throughout the tank and improving the stability of subsequent processing quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the raw material soaking device in one embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the raw material soaking device in one embodiment of the present invention;

[0018] Figure 3 for Figure 2 Schematic diagram of the material turning mechanism;

[0019] Figure 4 for Figure 2 A schematic diagram of the structure of the drive component;

[0020] Figure 5 for Figure 2 Schematic diagram of the structure of the central discharge assembly;

[0021] Figure 6 for Figure 2 Schematic diagram of the central discharge pipe;

[0022] Figure 7 for Figure 2 A schematic diagram of the connecting pipe.

[0023] Legend:

[0024] 1. Soaking tank; 2. Support frame; 3. Tilting mechanism; 4. Drive assembly; 5. Ultrasonic generator; 6. Ultrasonic transducer; 7. Blowing mechanism; 8. Discharge assembly; 9. Drying conveying mechanism; 10. Support plate; 11. Feeding hopper; 12. Overflow pipe; 13. Control box; 14. Connecting pipe; 15. First vent pipe; 16. Second vent pipe; 17. Control valve; 18. Feeding shaft; 19. Feeding rod; 31. Mounting plate; 32. First connecting plate; 33. First tilting component; 34. Second connecting plate; 35. Second tilting component; 331. Tilting 332. Motor; 333. Tilting rod; 41. Tilting auger; 42. Drive motor; 43. Drive wheel; 44. Transmission wheel; 45. Drive shaft; 71. Blower; 72. Mixing plate; 73. Blower pipe; 74. Air outlet pipe; 75. Air inlet pipe; 81. Discharge pipe; 82. Filter hopper; 83. Water outlet pipe; 84. Discharge pipe; 91. Upper conveyor cylinder; 92. Lower conveyor cylinder; 93. Feed pipe; 94. Guide pipe; 95. Mixing transmission shaft; 96. Mixing pusher blades; 97. Heating cylinder; 98. Heating wire; 99. Exhaust pipe; 910. Air guide pipe. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and 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.

[0027] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Please see Figure 1-7This invention provides a technical solution: a raw material soaking device for making rice crusts, comprising a soaking tank 1, a turning mechanism 3, an ultrasonic generator 5, an air blowing mechanism 7, and a discharge assembly 8. A support frame 2 is mounted on the soaking tank 1; the turning mechanism 3 is disposed inside the soaking tank 1, and a drive assembly 4 is mounted on the turning mechanism 3; the ultrasonic generator 5 is mounted on the support frame 2, and multiple ultrasonic transducers 6 connected to the ultrasonic generator 5 are disposed inside the soaking tank 1; the air blowing mechanism 7 is connected to the turning mechanism 3; and the discharge assembly 8 is connected to the bottom of the soaking tank 1. The turning mechanism 3 is used to turn the raw materials inside the soaking tank 1, and the ultrasonic transducers 6 and the air blowing mechanism 7 are used to accelerate the soaking efficiency of the raw materials.

[0029] In the technical solution of this invention, after the raw materials and soaking liquid are added into the soaking tank 1, the raw materials are continuously stirred by the rotating material turning mechanism 3, breaking the accumulation of raw materials in traditional soaking, so that the water and raw materials can fully contact each other. The ultrasonic transducer 5 generates high-frequency vibration, forming micro bubbles in the liquid and bursting them instantly, generating a strong impact force, accelerating the penetration of water molecules into the interior of the raw materials, destroying the cell wall structure, and shortening the soaking time. The air blowing mechanism 7 releases the bubbles, forming convection and preventing the raw materials from sinking to the bottom, further enhancing the soaking uniformity. The combination of multi-angle turning and air blowing avoids local over- or under-soaking, ensuring that the water content of the raw materials in the whole tank is consistent, and improving the stability of the quality of subsequent processing. Through the triple-enhanced soaking mechanism of "mechanical + physical + airflow", the problems of low efficiency, high energy consumption and unstable quality of traditional processes are solved. It is especially suitable for large-scale rice crust production enterprises and can significantly improve production efficiency and product quality.

[0030] Specifically, the soaking time can be shortened from the traditional 8-12 hours to 2-4 hours, while improving the uniformity of water absorption of the glutinous rice, laying the foundation for the formation of the crispy rice crust texture.

[0031] The soaking tank 1 has a feeding hopper 11 on one side and an overflow pipe 12 on the other side. The overflow pipe 12 is equipped with a filter. The support frame 2 is equipped with a control box 13. The feeding hopper 11 facilitates the batch feeding of raw materials into the soaking tank. The filter in the overflow pipe 12 prevents the raw materials from overflowing and maintains a stable liquid level in the soaking tank. The control box 13 integrates an electrical control system to uniformly regulate the operation of various motors, ultrasonic generators, heating wires and other equipment.

[0032] like Figure 2 and Figure 3As shown, the material turning mechanism 3 includes a mounting plate 31. One side of the mounting plate 31 is connected to the first material turning component 33 via a first connecting plate 32, and the other side of the mounting plate 31 is connected to the second material turning component 35 via a second connecting plate 34. The second material turning component 35 has the same structure as the first material turning component 33. The first material turning component 33 and the second material turning component 35 are symmetrically arranged on both sides of the mounting plate 31. The two material turning motors synchronously drive the auger to rotate, forming a symmetrical and complementary stirring force field. The two augers act on different areas of the soaking tank respectively, avoiding stirring blind spots in the center or edge areas.

[0033] Specifically, the first material turning component 33 includes a material turning motor 331. One side of the material turning motor 331 is connected to the first connecting plate 32. The driving end of the material turning motor 331 is connected to a material turning rod 332. A material turning auger 333 is provided on the material turning rod 332. When the spiral blades of the material turning auger 333 rotate, they simultaneously generate axial pushing, which causes the bottom material to turn upward and prevent it from sinking to the bottom.

[0034] Among them, the auger tumbling can make the bubbles generated by the air blowing mechanism 7 more evenly distributed in the liquid, prolong the bubble residence time, and enhance the gas-liquid mass transfer efficiency; mechanical tumbling reduces the agglomeration of raw materials, making it easier for ultrasonic waves to penetrate materials and expanding the cavitation effect coverage.

[0035] like Figure 2 and Figure 3 As shown, the drive assembly 4 includes a drive motor 41, which is connected to the soaking tank 1 via a fixed base. The drive end of the drive motor 41 is connected to the drive wheel 42, which is connected to the transmission wheel 43. The transmission wheel 43 is fixed on the drive shaft 44, which is connected to the material turning mechanism 3. The drive shaft 44 is a hollow shaft. By controlling the operation of the drive motor 41, the drive wheel 42 can be driven to rotate, which in turn drives the transmission wheel 43 and the drive shaft 44 to rotate.

[0036] like Figure 3 and Figure 4 As shown, the aeration mechanism 7 includes a blower 71 and a stirring plate 72. The blower 71 is connected to the top of the drive shaft 44 through a blower pipe 73. The stirring plate 72 is mounted on the drive shaft 44 and has multiple air outlet pipes 74. An air inlet pipe 75 is provided on one side of the blower 71. When the blower 71 is working, air can be blown into the drive shaft 44 through the blower pipe 73. The gas is sprayed into the soaking tank 1 through the multiple air outlet pipes 74 provided on the stirring plate 72, generating a bubble flow. Combined with the inclined plate stirring, the raw materials are further agitated, enhancing liquid convection.

[0037] Specifically, the stirring plate 72 is an inclined plate, with the end of the stirring plate 72 away from the drive shaft 44 tilting downwards; by making the stirring plate 5 an inclined plate and the end of the stirring plate 72 away from the drive shaft 44 tilting downwards, the air outlet direction of the air outlet pipe 74 can be made downwards, avoiding material blocking the air outlet pipe 74.

[0038] like Figure 1 and Figure 2 As shown, the discharge assembly 8 includes a discharge pipe 81, the upper end of which is connected to the discharge end of the soaking tank 1. A filter hopper 82 is provided inside the discharge pipe 81, and water outlet pipes 83 are provided on both sides of the filter hopper 82. A discharge pipe 84 is provided below the filter hopper 82. The raw materials in the discharge pipe 81 can be intercepted and filtered through the filter hopper 82, and the soaking water is discharged through the water outlet pipe 84 to achieve drainage.

[0039] Specifically, a material guide shaft 18 is connected to the bottom of the drive shaft 44. Multiple material guide rods 19 are provided on the material guide shaft, and the material guide rods are located inside the discharge pipe 81. The material guide rods 19 rotate to push the raw material through the discharge pipe 84, preventing discharge blockage and ensuring smooth conveying.

[0040] like Figure 6 and Figure 7 As shown, the discharge end of the discharge assembly 8 is connected to the drying conveying mechanism 9. A support plate 10 is connected below the drying conveying mechanism 9. The drying conveying mechanism 9 includes an upper conveying cylinder 91 and a lower conveying cylinder 92. The upper conveying cylinder 91 is connected to the discharge assembly 8 through a feed pipe 93, and the lower part of the upper conveying cylinder 91 is connected to the lower conveying cylinder 92 through a guide pipe 94. Both the upper conveying cylinder 91 and the lower conveying cylinder 92 are equipped with stirring transmission shafts 95. Stirring and pushing fan blades 96 are installed on the stirring transmission shafts 95. The stirring transmission shafts 95 are connected to a motor. Both the upper conveying cylinder 91 and the lower conveying cylinder 92 are fitted with... Heating cylinder 97, with heating wire 98 inside; surface moisture is rapidly evaporated by upper conveying cylinder 91, and internal moisture is slowly removed by lower conveying cylinder 92, avoiding crusting of the raw material surface due to high-temperature rapid drying, improving dehydration uniformity by 30% and shortening drying time by 25%. The material enters the upper cylinder through feed pipe 93, spirals downward to guide pipe 94, and then enters the lower cylinder for reverse conveying, extending the total drying path. Stirring and pushing fan blades 96 can stir the raw material entering the cylinder, making the raw material flow strongly and allowing the raw material to fully contact the inner wall of the cylinder for drying, making the drying more thorough.

[0041] The upper conveyor cylinder 91 is a high-temperature section with a temperature of approximately 80-100℃, while the lower conveyor cylinder 92 is a low-temperature section with a temperature of approximately 60-70℃.

[0042] Specifically, both the upper conveyor cylinder 91 and the lower conveyor cylinder 92 are equipped with exhaust pipes 99, which are connected to air guide pipes 910. The air guide pipes 910 are connected to the air inlet pipes 75 through connecting pipes 14. A first vent pipe 15 is provided on one side of the air guide pipe 910, and a second vent pipe 16 is provided on one side of the air inlet pipes 75. Control valves 17 are provided on the air guide pipes 910, the first vent pipe 15, and the second vent pipe 16. The hot and humid air from the upper conveyor cylinder 91 and the lower conveyor cylinder 92 flows into the connecting pipe 14 through the exhaust pipes 99 and the air guide pipes 910. Some of the hot air is sent to the blowing mechanism through the air inlet pipes 75 for aeration and heating of the soaking tank, recovery of drying waste heat, and reduction of blowing energy consumption by 20%, which can be used for the next batch of raw materials.

[0043] A method for soaking raw materials for making rice crust: S1, adding raw materials for making rice crust into soaking tank 1 through the feeding hopper 11 on one side of soaking tank 1, and injecting an appropriate amount of soaking water into soaking tank 1; S2, starting the drive assembly 4 to agitate the raw materials in soaking tank 1, turning on the ultrasonic generator 5, and transmitting ultrasonic energy to soaking tank 1 through the ultrasonic transmitter 6 to accelerate the penetration of water molecules into the raw materials, and starting the aeration mechanism 7 to agitate the raw materials to further improve soaking efficiency; S3, after the preset soaking time is reached, the control box 13 issues a prompt, turns off the agitation mechanism 3, the ultrasonic generator 5 and the aeration mechanism 7, turns on the discharge assembly 8, and the raw materials enter the drying conveyor mechanism 9.

[0044] Specifically, the raw materials for making rice crust are added to the soaking tank 1 through the feeding hopper 11 on one side of the soaking tank 1, and an appropriate amount of soaking water is injected into the soaking tank 1. The control box 13 is turned on to set parameters such as soaking time, power of ultrasonic generator 5, speed of turning mechanism 3, and blowing frequency of air blowing mechanism 7. The drive motor 41 of drive assembly 4 is started, and drive wheel 42 and transmission wheel 43 drive drive shaft 44 to rotate, thereby driving the first turning part 33 and the second turning part 35 of turning mechanism 3 to run. Turning auger 333 turns the raw materials in soaking tank 1. Ultrasonic generator 5 is turned on, and ultrasonic energy is transmitted to soaking tank 1 through ultrasonic transducer 6 to accelerate water molecule penetration into raw materials. Blower 71 of air blowing mechanism 7 is started, and air is discharged through air pipe 73, hollow drive shaft 44, and air outlet pipe 74 on stirring plate 72. In conjunction with the inclined plate structure of stirring plate 72, the raw materials are aerated and stirred to further improve soaking efficiency. After the preset soaking time is reached, The control box 13 issues a prompt to shut down the material turning mechanism 3, the ultrasonic generator 5, and the air blowing mechanism 7, and to turn on the discharge assembly 8. The raw materials and soaking water in the soaking tank 1 enter through the discharge pipe 81. The filter hopper 82 achieves solid-liquid separation. The soaking water is discharged through the water outlet pipe 83, and the raw materials enter the drying conveying mechanism 9 through the discharge pipe 84. The raw materials enter the upper conveying cylinder 91 of the drying conveying mechanism 9 through the feed pipe 93. The heating wires 98 in the heating cylinder 97 outside the upper conveying cylinder 91 and the lower conveying cylinder 92 heat the inside of the cylinder. At the same time, the stirring transmission shaft 95 drives the stirring and pushing fan blades 96 to stir and push the raw materials. The raw materials enter the lower conveying cylinder 92 through the guide pipe 94 for further drying. The hot and humid air generated during the drying process enters the air blowing mechanism 7 through the exhaust pipe 99 and the air guide pipe 910. Through the adjustment of the control valve 17, part of the hot air enters the air blowing mechanism 7 through the connecting pipe 14 and the air inlet pipe 75 to achieve waste heat recovery and utilization. The dried raw materials are discharged from the discharge end of the lower conveying cylinder 92 and enter the subsequent rice crust production process.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A raw material soaking device for producing rice crust, characterized in that, include: Soaking tank (1), on which a support frame (2) is installed; A material turning mechanism (3) is provided inside the soaking tank (1), and a drive component (4) is provided on the material turning mechanism (3). An ultrasonic generator (5) is mounted on a support frame (2), and a plurality of ultrasonic transducers (6) connected to the ultrasonic generator (5) are provided inside the soaking tank (1). An air-blowing mechanism (7) is connected to a material-turning mechanism (2); Discharge assembly (8), which is connected to the bottom of soaking tank (1); The material turning mechanism (3) is used to turn the raw materials inside the soaking tank (1), and the ultrasonic transducer (6) and the air blowing mechanism (7) are used to accelerate the soaking efficiency of the raw materials.

2. The raw material soaking device for producing rice crust according to claim 1, characterized in that: The discharge end of the discharge assembly (8) is connected to the drying conveying mechanism (9), and a support plate (10) is connected below the drying conveying mechanism (9).

3. The raw material soaking device for producing rice crust according to claim 1, characterized in that: The flipping mechanism (3) includes a mounting plate (31). One side of the mounting plate (31) is connected to the first flipping component (33) through a first connecting plate (32). The other side of the mounting plate (31) is connected to the second flipping component (35) through a second connecting plate (34). The second flipping component (35) has the same structure as the first flipping component (33).

4. The raw material soaking device for producing rice crust according to claim 1, characterized in that: The drive assembly (4) includes a drive motor (41), which is connected to the soaking tank (1) via a fixed base. The drive end of the drive motor (41) is connected to the drive wheel (42), which is connected to the transmission wheel (43). The transmission wheel (43) is fixed on the drive shaft (44), which is connected to the material turning mechanism (3). The drive shaft (44) is a hollow shaft.

5. The raw material soaking device for producing rice crust according to claim 4, characterized in that: The air blowing mechanism (7) includes a blower (71) and a stirring plate (72). The blower (71) is connected to the top of the drive shaft (44) through a blower pipe (73). The stirring plate (72) is mounted on the drive shaft (44). The stirring plate (72) is provided with multiple air outlet pipes (74). An air inlet pipe (75) is provided on one side of the blower (71).

6. The raw material soaking device for producing rice crust according to claim 1, characterized in that: The discharge assembly (8) includes a discharge pipe (81), the upper end of which is connected to the discharge end of the soaking tank (1), a filter hopper (82) is provided inside the discharge pipe (81), water outlet pipes (83) are provided on both sides of the filter hopper (82), and a discharge pipe (84) is provided below the filter hopper (82).

7. The raw material soaking device for producing rice crust according to claim 2, characterized in that: The drying conveying mechanism (9) includes an upper conveying cylinder (91) and a lower conveying cylinder (92). The upper conveying cylinder (91) is connected to the discharge assembly (8) through a feed pipe (93). The lower part of the upper conveying cylinder (91) is connected to the lower conveying cylinder (92) through a guide pipe (94). Both the upper conveying cylinder (91) and the lower conveying cylinder (92) are equipped with stirring transmission shafts (95). The stirring transmission shafts (95) are equipped with stirring pusher blades (96). Both the upper conveying cylinder (91) and the lower conveying cylinder (92) are equipped with heating cylinders (97). The heating cylinders (97) are equipped with heating wires (98).

8. The raw material soaking device for producing rice crust according to claim 3, characterized in that: The first turning component (33) includes a turning motor (331), one side of which is connected to the first connecting plate (32), and the driving end of the turning motor (331) is connected to a turning rod (332), and a turning auger (333) is provided on the turning rod (332).

9. The raw material soaking device for producing rice crust according to claim 1, characterized in that: A feeding hopper (11) is provided on one side of the soaking tank (1), and an overflow pipe (12) is provided on the other side of the soaking tank (1). A filter element is provided inside the overflow pipe (12), and a control box (13) is provided on the support frame (2).

10. A method for soaking raw materials for making rice crust, characterized in that: S1. Add the raw materials for making rice crust into the soaking tank (1) through the feeding hopper (11) on one side of the soaking tank (1), and inject an appropriate amount of soaking water into the soaking tank (1); S2. Start the drive assembly (4) to turn the raw material in the soaking tank (1), turn on the ultrasonic generator (5), and transmit ultrasonic energy to the soaking tank (1) through the ultrasonic transducer (6) to accelerate the penetration of water molecules into the raw material. Start the air blowing mechanism (7) to blow air and stir the raw material to further improve the soaking efficiency. S3. After the preset soaking time is reached, the control box (13) issues a prompt, shuts down the turning mechanism (3), ultrasonic generator (5) and air blowing mechanism (7), and turns on the discharge assembly (8), so that the raw material enters the drying conveying mechanism (9).

Images