Online fresh-keeping treatment system and method on fruit and vegetable sorting line
By designing an online preservation and treatment system on the fruit and vegetable sorting line, and using intelligent control and component adjustment modules, the problems of inaccurate concentration regulation of active ingredient and failure to utilize residual active ingredient in the existing plasma treatment methods are solved, and efficient and intelligent preservation and treatment of fruit and vegetable preservation is achieved.
Patent Information
- Application Number
- CN202411859166.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-03-04
AI Technical Summary
The existing plasma treatment methods cannot accurately regulate the concentration of active ingredients during the preservation process, affecting the treatment effect, and fail to utilize the residual active ingredients, and are not intelligent and cannot be used in conjunction with the fruit and vegetable sorting line.
An online preservation and treatment system on the fruit and vegetable sorting line is designed, including a processing chamber, a gas isolation device, a monitoring device, a discharge module, a component adjustment module and an intelligent control module. The intelligent control module presets the optimal active ingredient concentration range and processing time for different fruit and vegetable species, monitors and adjusts the discharge voltage and frequency in real time, controls the component adjustment module to degrade ozone and adjusts the concentration of active ingredient to ensure that the gas components and concentration in the processing chamber are within the preset range.
The real-time and accurate control of the concentration of active ingredients on the fruit and vegetable sorting line is achieved, the fresh preservation effect is improved, the treatment plan can be formulated according to different fruit and vegetable types, and the cost is reduced by reusing the residual active ingredient.
Smart Images
Figure CN119547813A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of fruit and vegetable preservation, and relates to an online preservation processing system and method on a fruit and vegetable sorting line. Background Art
[0002] The existing preservation technologies mainly include physical methods and chemical methods. Among them, the chemical method mainly uses preservatives, but there will be drug residues that endanger human health; the physical method mainly includes low-temperature storage, but the equipment is complex and the cost is high. Plasma treatment is an emerging sterilization and preservation method with broad spectrum and high efficiency.
[0003] However, the concentration of effective active ingredients in the preservation process of existing plasma treatment methods will change over time, and the active ingredients cannot be accurately controlled to remain within a fixed concentration range, which affects the treatment effect. In addition, the gas is discharged after treatment, and the secondary utilization of residual active ingredients is not considered. In addition, the preservation treatment of existing plasma treatment methods is not intelligent enough, and cannot be used in conjunction with fruit and vegetable sorting lines, and treatment plans cannot be formulated according to the differences in fruit and vegetable types. Summary of the invention
[0004] In view of this, an object of the present invention is to provide an online fresh-keeping processing system and method for a fruit and vegetable sorting line.
[0005] In order to achieve the above object, the present invention provides the following technical solutions:
[0006] On the one hand, the present invention provides an online fresh-keeping processing system on a fruit and vegetable sorting line, wherein a processing chamber is provided on a conveyor belt of the fruit and vegetable sorting line, wherein a gas isolation device, a monitoring device and a discharge module are provided in the processing chamber, wherein the discharge module is powered by a high-voltage power supply module; further comprising a component adjustment module and an intelligent control module; wherein the intelligent control module is respectively connected to the monitoring device, the high-voltage power supply module, the component adjustment module and the conveyor belt signal;
[0007] The gas isolation device is used to seal the processing chamber to prevent gas from overflowing;
[0008] The discharge module is used for discharging to generate active components in the processing chamber;
[0009] The monitoring device is used to monitor the gas composition and concentration in the processing chamber;
[0010] The component adjustment module is used to degrade ozone generated by discharge, reduce the concentration of active components generated by discharge, and control the humidity of the gas in the processing chamber;
[0011] The intelligent control module is used to pre-store the nitrogen oxide active ingredient concentration range corresponding to the current fruit and vegetable type for obtaining the best preservation effect, as well as the fruit and vegetable processing time; control the discharge module to generate the corresponding concentration of active ingredients according to the stored parameters, and control the component adjustment module to control the gas composition and concentration in the processing chamber within the corresponding range according to the data collected by the monitoring device; control the conveying speed of the conveyor belt so that the residence time of the fruits and vegetables in the processing chamber meets the preset fruit and vegetable processing time, and then transfer the processed fruits and vegetables out of the processing chamber.
[0012] Furthermore, the discharge module includes multiple discharge units, and the high-voltage power supply module supplies power to each discharge unit separately and can adjust the discharge voltage and discharge frequency; when it is monitored that the concentration of active components in the processing chamber is lower than a threshold value, the intelligent control module controls the high-voltage power supply module to supply power to multiple discharge units and increase the discharge voltage and discharge frequency; when it is monitored that the concentration of active components in the processing chamber is higher than a threshold value, the discharge units supplied with power are reduced, and the discharge voltage and discharge frequency are lowered, or the power supply of all discharge units is directly turned off.
[0013] Furthermore, the component regulation module includes a gas cooperative regulation unit and an air pump; when the concentration of the active ingredient in the processing chamber is higher than a threshold value, or the gas contains ozone generated by discharge, the intelligent control module controls the gas cooperative regulation unit and the air pump to operate, so that the active ingredient circulates between the processing chamber and the component regulation module through the gas; the gas cooperative regulation unit degrades ozone and adjusts the concentration of the active ingredient. When the monitoring device detects that the active ingredient in the processing chamber is reduced to a normal range, the intelligent control module controls the cooperative regulation unit and the air pump to shut down.
[0014] Furthermore, the gas coordinated regulation unit includes an adsorption chamber and a catalytic conversion chamber, the adsorption chamber is used to degrade ozone through an adsorbent; the catalytic conversion chamber is used to catalyze or convert excess active ingredients through a catalyst or discharge; the catalytic conversion chamber catalyzes or converts excess active ingredients through discharge, specifically by reducing nitrogen oxides into nitrogen; the intelligent control module selectively controls the gas to pass through one or all of the adsorption chambers and the catalytic conversion chambers according to the monitoring results of the monitoring device.
[0015] Furthermore, the monitoring device is also used to monitor the gas humidity in the processing chamber; the composition adjustment module also includes a humidifier and a drying chamber; when the monitoring device detects that the gas humidity is lower than a threshold value, the intelligent control module controls the humidifier to work and add water vapor to the processing chamber; when the gas humidity is higher than the threshold value, the intelligent control module controls the drying chamber and the air pump to work and perform adsorption drying on the air in the processing chamber.
[0016] Furthermore, the gas isolation device is an air curtain.
[0017] On the other hand, the present invention provides an online fresh-keeping treatment method on a fruit and vegetable sorting line, based on the online fresh-keeping treatment system on a fruit and vegetable sorting line according to any one of claims 1 to 6, comprising the following steps:
[0018] S1: For different types of fruits and vegetables, the concentration range of nitrogen oxide active ingredients and the processing time of fruits and vegetables for obtaining the best preservation effect are pre-stored in the intelligent control module;
[0019] S2: Obtain the types of fruits and vegetables on the fruit and vegetable sorting line, and determine the corresponding optimal active ingredient concentration range according to the stored parameters; start the gas isolation device in the processing chamber to prevent the gas in the processing chamber from overflowing;
[0020] S3: the intelligent control module controls the high voltage power supply module to supply power to one or more discharge units in the discharge module to generate active ingredients;
[0021] S4: The concentration of gas components in the processing chamber is detected by a monitoring device. When the concentration of active components in the environment is detected to be lower than a threshold value, the intelligent control module controls the high-voltage power supply module to supply power to more discharge units, and increases the discharge voltage and discharge frequency. When the concentration of active components in the environment is detected to be higher than a threshold value, the intelligent control module controls the high-voltage power supply module to reduce the number of discharge units it supplies power to, and controls the gas coordination regulating unit and the air pump in the component regulating module to work, so that the active components circulate between the processing chamber and the component regulating module, catalytically convert the active components, and reduce the concentration of the active components.
[0022] S5: When the fruits and vegetables meet the corresponding fruit and vegetable processing time, the intelligent control module controls the conveyor belt to convey the fruits and vegetables out of the processing chamber, thereby realizing online fresh-keeping processing on the fruit and vegetable sorting line.
[0023] Furthermore, if ozone is generated during the process of generating active components by discharge, the intelligent control module controls the adsorption chamber in the gas cooperative regulation unit to work, thereby utilizing the adsorbent to degrade the ozone.
[0024] Further, when the monitoring device detects that the humidity of the gas in the processing chamber is lower than the threshold value, the intelligent control module controls the humidifier in the component adjustment module to work, adding water vapor into the processing chamber until the humidity of the gas returns to a certain range, and then turns off the humidifier;
[0025] When the monitoring device detects that the gas humidity in the processing chamber is higher than the threshold value, the intelligent control module controls the drying chamber and the air pump in the component adjustment module to work until the gas humidity returns to a certain range, and then shuts down the drying chamber and the air pump.
[0026] The beneficial effects of the present invention are as follows: the online fresh-keeping treatment system and method on the fruit and vegetable sorting line provided by the present solution can accurately keep the active ingredients within a fixed concentration range in real time, thereby improving the fresh-keeping treatment effect; by being used in conjunction with the fruit and vegetable sorting line, the fruit and vegetable fresh-keeping can be achieved uninterruptedly, and differentiated treatments can be performed according to different types of fruits and vegetables. Moreover, since it is an online real-time treatment, the residual active ingredients in the previous treatment stage can be reused, thereby reducing costs.
[0027] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:
[0029] Figure 1 This is a schematic diagram of the structure of the online fresh-keeping processing system on the fruit and vegetable sorting line;
[0030] Figure numerals: 1-fruit and vegetable sorting line; 2-processing chamber; 21-conveyor belt; 22-gas isolation device; 23-monitoring device; 3-discharge module; 31~3i-discharge unit; 4-high voltage power supply module; 5-ingredient adjustment module; 51-humidifier; 52-air pump; 53-gas coordinated adjustment unit; 531-adsorption chamber; 532-catalytic conversion chamber; 533-drying chamber; 6-intelligent control module; 7-end of conveyor belt. DETAILED DESCRIPTION
[0031] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.
[0032] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.
[0033] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0034] See also Figure 1 The present invention provides an online fresh-keeping processing system on a fruit and vegetable sorting line, and based on the system, provides an online fresh-keeping processing method on a fruit and vegetable sorting line. In the system, a processing chamber 2 is provided on a conveyor belt 21 of a fruit and vegetable sorting line 1, and a gas isolation device 22, a monitoring device 23 and a discharge module 3 are provided in the processing chamber 2, and the discharge module 3 is powered by a high-voltage power module 4; it also includes a component adjustment module 5 and an intelligent control module 6; the intelligent control module 6 controls the monitoring device 23, the high-voltage power module 4, the component adjustment module 5 and the conveyor belt 21. The component adjustment module 5 includes a gas coordinated adjustment unit humidifier 51, an air pump 52, and a gas coordinated adjustment unit 53. The gas coordinated adjustment unit 53 includes an adsorption chamber 531, a catalytic conversion chamber 532 and a drying chamber 533.
[0035] For different types of fruits and vegetables, the nitrogen oxide (NO, N2O, etc.) active ingredient concentration range and fruit and vegetable processing time for obtaining the best preservation effect are stored in advance in the intelligent control module 6. The types of fruits and vegetables on the fruit and vegetable sorting line 1 are obtained. The optimal active ingredient concentration range is determined according to the parameters stored in the intelligent control module 6. The gas isolation device 22 in the processing chamber 2 is started to prevent the gas in the chamber 2 from overflowing. In this embodiment, the gas isolation device 22 is an air curtain.
[0036] The intelligent control module 6 controls the high-voltage power supply module 4 to supply power to the discharge units 31 to 3i in the discharge module 3. The discharge units 31 to 3i discharge in the air to recombine the elements in the air to generate active components such as NO and N2O. The power supply parameters include the discharge voltage and the discharge frequency. The intelligent control module 6 can control the power supply to one or more discharge units. The number of discharge units controlled by the intelligent control module 6 is determined according to the monitoring results of the monitoring device 23. The monitoring device 23 can monitor the gas composition in the processing chamber. When the concentration of active components in the environment is detected to be low (for example, when the discharge just starts), the intelligent control module 6 controls the high-voltage power supply module 4 to supply power to multiple discharge units and controls the discharge voltage and the discharge frequency to be high. When the concentration of active components in the environment is detected to be high (for example, after a period of discharge), the intelligent control module 6 controls the reduction of the discharge unit, and can also control the lowering of the discharge voltage and the discharge frequency, or even disconnect the output of the high-voltage power supply module 4 to turn off the discharge of the discharge module 3.
[0037] When the monitoring device 23 detects that the concentration of active ingredients in the processing chamber 2 is high, or the gas contains ozone (generated by discharge), the intelligent control module 6 controls the gas cooperative regulation unit 53 and the air pump 52 in the component regulation module 5 to start working. At this time, the active ingredients circulate between the processing chamber 2 and the component regulation module 5 through the gas cooperative regulation unit 53 and the air pump 52. The intelligent control module 6 can control the gas cooperative regulation unit 53 to degrade ozone and regulate the active ingredients. When the monitoring device 23 detects that the active ingredients in the processing chamber 2 are reduced to a normal range, the intelligent control module 6 controls the gas cooperative regulation unit 53 and the air pump 52 to shut down. When the intelligent control module 6 controls the gas cooperative regulation unit 53 to work, it can choose to control the gas to pass through a single or multiple devices of the adsorption chamber 531 and the catalytic conversion chamber 532 to achieve the function of degrading ozone and regulating active ingredients. For example, when choosing to pass through the adsorption chamber 531, the adsorbent can be used to adsorb ozone; when choosing to pass through the catalytic conversion chamber 532, the excess active components can be converted by means of discharge and catalysts. When discharge is used for conversion, the noble metal is used as a high-voltage electrode to discharge and reduce nitrogen oxides to nitrogen gas, etc.
[0038] When the monitoring device 23 detects that the humidity of the gas in the processing chamber 2 is lower than a certain range, the intelligent control module 6 controls the humidifier 51 in the component adjustment module 5 to start working and add water vapor to the processing chamber. When the monitoring device 23 detects that the humidity of the gas in the processing chamber 2 returns to a certain range, the intelligent control module 6 controls the humidifier 51 to be turned off.
[0039] When the monitoring device 23 detects that the humidity of the gas in the processing chamber 2 is higher than a certain range, the intelligent control module 6 controls the drying chamber 533 and the air pump 52 in the component adjustment module 5 to perform adsorption drying. When the monitoring device 23 detects that the humidity of the gas in the processing chamber 2 is restored to a certain range, the intelligent control module 6 controls the drying chamber 533 and the air pump 52 to be turned off.
[0040] When the monitoring device 23 detects that the active ingredient reaches the nitrogen oxide (NO, N2O, etc.) active ingredient concentration range for the best preservation effect, the intelligent control module 6 controls the start of the conveyor belt 21 and controls the conveyor belt speed. The fruits and vegetables on the fruit and vegetable sorting line 1 pass through the processing chamber 2 via the conveyor belt 21 for preservation. The processed fruits reach the end 7 of the conveyor belt and can be passed to other functional units of the sorting line (such as size and sweetness screening units) or complete the fruit and vegetable sorting work.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.
Claims
1. An online fresh-keeping processing system for a fruit and vegetable sorting line, characterized by: A processing chamber is provided on the conveyor belt of the fruit and vegetable sorting line, and a gas isolation device, a monitoring device and a discharge module are provided in the processing chamber, and the discharge module is powered by a high-voltage power supply module; a component adjustment module and an intelligent control module are also provided; the intelligent control module is respectively connected to the monitoring device, the high-voltage power supply module, the component adjustment module and the conveyor belt signal; The gas isolation device is used to seal the processing chamber to prevent gas from overflowing; The discharge module is used for discharging to generate active components in the processing chamber; The monitoring device is used to monitor the gas composition and concentration in the processing chamber; The component adjustment module is used to degrade ozone generated by discharge, reduce the concentration of active components generated by discharge, and control the humidity of the gas in the processing chamber; The intelligent control module is used to pre-store the nitrogen oxide active ingredient concentration range corresponding to the current fruit and vegetable type for obtaining the best preservation effect, as well as the fruit and vegetable processing time; control the discharge module to generate the corresponding concentration of active ingredients according to the stored parameters, and control the component adjustment module to control the gas composition and concentration in the processing chamber within the corresponding range according to the data collected by the monitoring device; control the conveying speed of the conveyor belt so that the residence time of the fruits and vegetables in the processing chamber meets the preset fruit and vegetable processing time, and then transfer the processed fruits and vegetables out of the processing chamber.
2. The online fresh-keeping processing system on the fruit and vegetable sorting line according to claim 1 is characterized in that: The discharge module includes multiple discharge units, and the high-voltage power supply module supplies power to each discharge unit separately and can adjust the discharge voltage and discharge frequency; when it is monitored that the concentration of active components in the processing chamber is lower than a threshold value, the intelligent control module controls the high-voltage power supply module to supply power to multiple discharge units and increase the discharge voltage and discharge frequency; when it is monitored that the concentration of active components in the processing chamber is higher than the threshold value, the discharge units supplied with power are reduced, and the discharge voltage and discharge frequency are lowered, or the power supply of all discharge units is directly turned off.
3. The online fresh-keeping processing system on the fruit and vegetable sorting line according to claim 1 is characterized in that: The component regulation module includes a gas cooperative regulation unit and an air pump; when the concentration of the active ingredient in the processing chamber is higher than a threshold value, or the gas contains ozone generated by discharge, the intelligent control module controls the gas cooperative regulation unit and the air pump to operate, so that the active ingredient circulates between the processing chamber and the component regulation module through the gas; the gas cooperative regulation unit degrades ozone and regulates the concentration of the active ingredient. When the monitoring device detects that the active ingredient in the processing chamber is reduced to a normal range, the intelligent control module controls the cooperative regulation unit and the air pump to shut down.
4. The online fresh-keeping processing system on the fruit and vegetable sorting line according to claim 1 is characterized in that: The gas coordinated regulation unit includes an adsorption chamber and a catalytic conversion chamber. The adsorption chamber is used to degrade ozone through an adsorbent; the catalytic conversion chamber is used to catalyze or convert excess active ingredients through a catalyst or discharge; the catalytic conversion chamber catalyzes or converts excess active ingredients through discharge, specifically by reducing nitrogen oxides into nitrogen; the intelligent control module selectively controls the gas to pass through one or all of the adsorption chambers and the catalytic conversion chambers according to the monitoring results of the monitoring device.
5. The online fresh-keeping processing system on the fruit and vegetable sorting line according to claim 1 is characterized in that: The monitoring device is also used to monitor the gas humidity in the processing chamber; the composition adjustment module also includes a humidifier and a drying chamber; when the monitoring device detects that the gas humidity is lower than a threshold value, the intelligent control module controls the humidifier to work and add water vapor to the processing chamber; when the gas humidity is higher than the threshold value, the intelligent control module controls the drying chamber and the air pump to work and perform adsorption drying on the air in the processing chamber.
6. The online fresh-keeping processing system on the fruit and vegetable sorting line according to claim 1 is characterized in that: The gas isolation device is an air curtain.
7. An online fresh-keeping method for a fruit and vegetable sorting line, characterized in that: The online fresh-keeping processing system on the fruit and vegetable sorting line according to any one of claims 1 to 6 comprises the following steps: S1: For different types of fruits and vegetables, the concentration range of nitrogen oxide active ingredients and the processing time of fruits and vegetables for obtaining the best preservation effect are pre-stored in the intelligent control module; S2: Obtain the types of fruits and vegetables on the fruit and vegetable sorting line, and determine the corresponding optimal active ingredient concentration range according to the stored parameters; start the gas isolation device in the processing chamber to prevent the gas in the processing chamber from overflowing; S3: the intelligent control module controls the high voltage power supply module to supply power to one or more discharge units in the discharge module to generate active ingredients; S4: The concentration of gas components in the processing chamber is detected by a monitoring device. When the concentration of active components in the environment is detected to be lower than a threshold value, the intelligent control module controls the high-voltage power supply module to supply power to more discharge units, and increases the discharge voltage and discharge frequency. When the concentration of active components in the environment is detected to be higher than a threshold value, the intelligent control module controls the high-voltage power supply module to reduce the number of discharge units it supplies power to, and controls the gas coordination regulating unit and the air pump in the component regulating module to work, so that the active components circulate between the processing chamber and the component regulating module, catalytically convert the active components, and reduce the concentration of the active components. S5: When the fruits and vegetables meet the corresponding fruit and vegetable processing time, the intelligent control module controls the conveyor belt to convey the fruits and vegetables out of the processing chamber, thereby realizing online fresh-keeping processing on the fruit and vegetable sorting line.
8. The online fresh-keeping method on the fruit and vegetable sorting line according to claim 7, characterized in that: If ozone is generated during the process of generating active components by discharge, the intelligent control module controls the adsorption chamber in the gas cooperative regulation unit to work, thereby utilizing the adsorbent to degrade the ozone.
9. The online fresh-keeping method on the fruit and vegetable sorting line according to claim 7, characterized in that: When the monitoring device detects that the gas humidity in the processing chamber is lower than the threshold value, the intelligent control module controls the humidifier in the component adjustment module to work, adding water vapor to the processing chamber until the gas humidity returns to a certain range, and then turns off the humidifier; When the monitoring device detects that the gas humidity in the processing chamber is higher than the threshold value, the intelligent control module controls the drying chamber and the air pump in the component adjustment module to work until the gas humidity returns to a certain range, and then shuts down the drying chamber and the air pump.