Adjustable mung bean kernel steaming device based on PLC control
The mung bean steaming device, which combines a PLC control system and temperature and humidity sensors, solves the problems of low automation and uneven heating during the steaming process, achieving uniform steaming of mung beans and improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU BOHUA FOOD TECHNOLOGY CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-12
AI Technical Summary
Existing mung bean steaming equipment cannot be precisely adjusted according to the characteristics of mung beans, has a low degree of automation, and suffers from uneven heating during steaming, resulting in a decline in product quality.
The PLC control system, combined with temperature and humidity sensors and a rotating mechanism, enables automated adjustment of the steaming process. The rotation of the steaming rack and the even spraying of steam ensure that the mung bean kernels are heated evenly during the steaming process. Combined with the precise control of the steam generating mechanism, the optimal steaming environment is achieved.
It improves the automation level of the steaming process, ensures stable steaming results, avoids local overheating or uneven heating, improves product quality, reduces energy waste, and lowers production costs.
Smart Images

Figure CN224344183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing equipment technology, and more specifically to an adjustable mung bean steaming device based on PLC control. Background Technology
[0002] Mung bean kernels refer to the shelled inner part of mung beans (Vigna radiata), commonly used in cooking and food processing. They are rich in nutrients, containing protein, carbohydrates, dietary fiber, vitamins, and minerals, making them particularly suitable for preparing various bean-based foods.
[0003] In the food processing industry, steaming mung bean kernels is a common process, widely used in pastry making and beverage ingredient processing. Traditional mung bean kernel steaming usually relies on manual operation, which suffers from inaccurate control of steaming time, temperature, and humidity, resulting in unstable steaming effects and affecting product quality. Existing steaming equipment is mostly single-function and cannot be precisely adjusted according to the characteristics of mung beans, and has a low degree of automation. Furthermore, uneven heating during the steaming process leads to reduced product quality. To address these issues, we propose an adjustable mung bean kernel steaming device based on PLC control. Utility Model Content
[0004] The purpose of this invention is to solve the problems of existing mung bean steaming devices being unable to make precise adjustments according to the characteristics of mung beans, having a low degree of automation, and experiencing uneven heating during the steaming process, which leads to a decrease in product quality. Therefore, this invention provides an adjustable mung bean steaming device based on PLC control.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An adjustable mung bean steaming device based on PLC control includes a steaming chamber, a steam generating mechanism on the back of the steaming chamber, several equally spaced steaming racks inside the steaming chamber, a temperature and humidity sensor fixedly installed inside the steaming chamber, a PLC control system on one side of the steaming chamber, and a rotating mechanism for driving the steaming racks to rotate on the other side of the steaming chamber.
[0007] As a further description of the above technical solution, the rotating mechanism includes a drive motor fixedly installed on one side of the steaming chamber, a worm gear fixedly connected to the output end of the drive motor, a worm wheel meshing on one side of the worm gear, a rotating rod fixedly connected to the top of the worm wheel, and the steaming rack fixedly sleeved on the rotating rod.
[0008] As a further description of the above technical solution, the steam generating mechanism includes a steam generator fixedly installed on the back of the steaming chamber. The output end of the steam generator is fixedly connected to a steam inlet pipe, and the other end of the steam inlet pipe is fixedly connected to a main pipe. A number of T-shaped branch pipes distributed at equal intervals are fixedly connected to one side of the main pipe. Steam outlet pipes are symmetrically fixedly connected to both ends of the T-shaped branch pipes, and a number of nozzles distributed at equal intervals are fixedly connected to the top of the steam outlet pipes.
[0009] As a further description of the above technical solution, the PLC control system includes a PLC controller, an input / output module, a power supply module, and a communication module, which are installed in a control cabinet, which is installed on one side of the steaming chamber.
[0010] As a further description of the above technical solution, the front of the control cabinet is provided with a human-machine interface, which is a touch screen and is connected to the PLC control system through a communication module. The input / output module is electrically connected to the temperature and humidity sensor, the steam generator, and the rotating mechanism.
[0011] As a further description of the above technical solution, a guide plate is provided at the bottom of the inner cavity of the steaming box, a door is provided on the front of the steaming box, and a drain pipe is fixedly connected to the bottom of one side of the steaming box.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] In use, this invention automates the steaming process through a PLC control system, reducing manual intervention and improving production efficiency. The combination of temperature and humidity sensors with the PLC control system ensures that the steaming environment is always in optimal condition, resulting in stable steaming effects. The rotating design of the steaming rack ensures that the mung beans are heated evenly during steaming, avoiding localized overheating or uneven heating, thus improving product quality. Precise control of the steam generating mechanism reduces energy waste and lowers production costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of an adjustable mung bean steaming device based on PLC control.
[0015] Figure 2 This is a schematic diagram of the internal structure of the control cabinet of an adjustable mung bean steaming device based on PLC control.
[0016] Figure 3 This is a schematic diagram of the internal structure of the steaming chamber of an adjustable mung bean steaming device based on PLC control.
[0017] Figure 4 for Figure 3 Enlarged schematic diagram of point A.
[0018] Figure 5 This is a schematic diagram of the steam generation mechanism of an adjustable mung bean steaming device based on PLC control.
[0019] Reference numerals in the attached diagram: 1. Steaming chamber; 2. Chamber door; 3. Rotating mechanism; 31. Drive motor; 32. Worm gear; 33. Worm wheel; 34. Rotating rod; 4. Drain pipe; 5. Steam generating mechanism; 51. Steam generator; 52. Steam inlet pipe; 53. Main pipe; 54. T-shaped branch pipe; 55. Steam outlet pipe; 56. Nozzle; 6. Control cabinet; 7. Human-machine interface; 8. Power supply module; 9. PLC controller; 10. Input / output module; 11. Communication module; 12. Steaming rack; 13. Temperature and humidity sensor; 14. Guide plate. Detailed Implementation
[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.
[0021] This invention provides an adjustable mung bean steaming device based on PLC control. Please refer to [link / reference]. Figures 1-5 As shown, the steaming chamber 1 includes a steam generating mechanism 5 on the back of the steaming chamber 1, several equally spaced steam racks 12 are arranged inside the steaming chamber 1, a temperature and humidity sensor 13 is fixedly installed inside the steaming chamber 1, a PLC control system is arranged on one side of the steaming chamber 1, and a rotating mechanism 3 for driving the steam racks 12 to rotate is arranged on the other side of the steaming chamber 1.
[0022] In this embodiment, the temperature and humidity sensor 13 can be a PT100, with a wide measurement range of -200°C to +850°C, good stability, and suitability for high-temperature environments in food processing. The operator places the mung beans to be steamed evenly on the steaming rack 12 and sets the steaming parameters, including steaming temperature, humidity, and time, through the human-machine interface. After setting, the operator starts the device, and the PLC control system controls the rotating mechanism 3 and the steam generating mechanism 5 to start working according to the set parameters. The steam generator 51 generates steam, which is evenly sprayed out through the nozzle 56 to ensure that the steam penetrates evenly from bottom to top. At the same time, the drive motor 31 starts and drives the worm gear 32 to rotate. The meshing of the worm gear 32 and the worm wheel 33 drives the rotating rod 34 to rotate, thereby driving the steaming rack 12 to rotate. This ensures that the mung beans placed on the steaming rack 12 are heated evenly during the steaming process, avoiding local overheating or uneven heating, and improving the efficiency and quality of steaming.
[0023] Furthermore, the rotating mechanism 3 includes a drive motor 31 fixedly installed on one side of the steaming chamber 1. A worm gear 32 is fixedly connected to the output end of the drive motor 31. A worm wheel 33 is meshed on one side of the worm gear 32. A rotating rod 34 is fixedly connected to the top of the worm wheel 33. The steaming rack 12 is fixedly sleeved on the rotating rod 34. In use, the drive motor 31 starts and drives the worm gear 32 to rotate. The meshing of the worm gear 32 and the worm wheel 33 drives the rotating rod 34 to rotate, thereby driving the steaming rack 12 to rotate. This ensures that the mung beans placed on the steaming rack 12 are heated evenly during the steaming process, avoiding local overheating or uneven heating, and improving the efficiency and quality of steaming.
[0024] Furthermore, the steam generating mechanism 5 includes a steam generator 51 fixedly installed on the back of the steaming chamber 1. The output end of the steam generator 51 is fixedly connected to a steam inlet pipe 52, and the other end of the steam inlet pipe 52 is fixedly connected to a main pipe 53. A number of T-shaped branch pipes 54 are fixedly connected to one side of the main pipe 53. Steam outlet pipes 55 are symmetrically fixedly connected to both ends of the T-shaped branch pipes 54. A number of nozzles 56 are fixedly connected to the top of the steam outlet pipes 55. In use, the steam generator 51 generates steam, which is transported to the steaming chamber 1 through the main pipe 53, the T-shaped branch pipes 54 and the steam outlet pipes 55. The steam is evenly sprayed out through the nozzles 56 to ensure that the steam penetrates evenly from bottom to top.
[0025] Furthermore, the PLC control system includes a PLC controller 9, an input / output module 10, a power supply module 8, and a communication module 11, which are installed inside the control cabinet 6. The control cabinet 6 is installed on one side of the steaming chamber 1. A human-machine interface 7 is set on the front of the control cabinet 6. The human-machine interface 7 is a touch screen and is connected to the PLC control system through the communication module 11. The input / output module 10 is electrically connected to the temperature and humidity sensor 13, the steam generating mechanism 5, and the rotating mechanism 3. In use, the PLC control system realizes the automatic adjustment of the steaming process, reduces manual intervention, and improves production efficiency.
[0026] Furthermore, a baffle plate 14 is provided at the bottom of the inner cavity of the steaming chamber 1, a door 2 is provided on the front of the steaming chamber 1, and a drain pipe 4 is fixedly connected to the bottom of one side of the steaming chamber 1. During use, the baffle plate 14 ensures that the condensate is discharged quickly.
[0027] The working principle of this utility model is as follows: When in use, the operator places the mung bean kernels to be steamed evenly on the steaming rack 12, sets the steaming parameters through the human-machine interface, including steaming temperature, humidity and time, etc. After setting, the operator starts the device. The PLC control system controls the rotating mechanism 3 and the steam generating mechanism 5 to start working according to the set parameters. The steam generator 51 generates steam, which is transported to the steaming chamber 1 through the main pipe 53, T-shaped branch pipe 54 and steam outlet pipe 55. The steam is evenly sprayed out through the nozzle 56 to ensure that the steam penetrates evenly from bottom to top. At the same time, the drive motor 31 starts and drives the worm 32 to rotate. The meshing of the worm 32 and the worm wheel 33 drives the rotating rod 34 to rotate, thereby driving the steaming rack 12 to rotate. This ensures that the mung bean kernels placed on the steaming rack 12 are heated evenly during the steaming process, avoiding local overheating or uneven heating, and improving the efficiency and quality of steaming.
[0028] During the steaming process, the temperature and humidity sensor 13 monitors the temperature and humidity inside the steaming chamber 1 in real time and feeds the monitoring data back to the PLC control system. The PLC control system dynamically adjusts the working status of the steam generating mechanism 5, such as the amount of steam and the temperature, based on the feedback data to ensure that the steaming environment always meets the set parameters. When the steaming time reaches the set value, the PLC control system automatically shuts down the steam generating mechanism 5 and the rotating mechanism 3 to stop the steam supply. After steaming is completed, the human-machine interface 7 will prompt the operator, who can then open the chamber door 2 to remove the steamed mung beans. The condensate generated during the steaming process is discharged through the drain pipe 4 to keep the inside of the chamber dry.
[0029] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.
Claims
1. An adjustable mung bean steaming device based on PLC control, comprising a steaming chamber (1), characterized in that: A steam generating mechanism (5) is provided on the back of the steaming box (1). Several equally spaced steam racks (12) are provided inside the steaming box (1). A temperature and humidity sensor (13) is fixedly installed inside the steaming box (1). A PLC control system is provided on one side of the steaming box (1). A rotating mechanism (3) for driving the steam racks (12) to rotate is provided on the other side of the steaming box (1).
2. The adjustable mung bean steaming device based on PLC control according to claim 1, characterized in that: The rotating mechanism (3) includes a drive motor (31) fixedly installed on one side of the steaming box (1). The output end of the drive motor (31) is fixedly connected to a worm (32). A worm wheel (33) is meshed on one side of the worm (32). A rotating rod (34) is fixedly connected to the top of the worm wheel (33). The steaming rack (12) is fixedly sleeved on the rotating rod (34).
3. The adjustable mung bean steaming device based on PLC control according to claim 1, characterized in that: The steam generating mechanism (5) includes a steam generator (51) fixedly installed on the back of the steaming chamber (1). The output end of the steam generator (51) is fixedly connected to a steam inlet pipe (52). The other end of the steam inlet pipe (52) is fixedly connected to a main pipe (53). A number of T-shaped branch pipes (54) are fixedly connected to one side of the main pipe (53). Steam outlet pipes (55) are symmetrically fixedly connected to both ends of the T-shaped branch pipes (54). A number of nozzles (56) are fixedly connected to the top of the steam outlet pipes (55).
4. The adjustable mung bean steaming device based on PLC control according to claim 1, characterized in that: The PLC control system includes a PLC controller (9), an input / output module (10), a power supply module (8), and a communication module (11), which are installed in a control cabinet (6) on one side of the steaming chamber (1).
5. The adjustable mung bean steaming device based on PLC control according to claim 4, characterized in that: The front of the control cabinet (6) is provided with a human-machine interface (7), which is a touch screen. It is connected to the PLC control system through the communication module (11). The input / output module (10) is electrically connected to the temperature and humidity sensor (13), the steam generator (5), and the rotating mechanism (3).
6. The adjustable mung bean steaming device based on PLC control according to claim 1, characterized in that: The bottom of the inner cavity of the steaming box (1) is provided with a guide plate (14), the front of the steaming box (1) is provided with a door (2), and a drain pipe (4) is fixedly connected to the bottom of one side of the steaming box (1).