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CN-122005881-A - Irradiation device based on Chinese herbal medicine disinfection and sterilization

CN122005881ACN 122005881 ACN122005881 ACN 122005881ACN-122005881-A

Abstract

The invention relates to the technical field of traditional Chinese medicine irradiation sterilization, and discloses an irradiation device based on traditional Chinese medicine sterilization, the device comprises a multi-mode three-dimensional sensing module, a special carrier for traditional Chinese medicinal materials, a uniform spreading feeding mechanism, an irradiation cavity, a dual-beam source irradiation assembly, a dual-index online detection assembly and a controller. The irradiation cavity is divided into a plurality of independent control sections along the conveying direction, each section independently regulates and controls the oxygen concentration and the temperature, an air curtain isolation door is arranged between adjacent sections to block the oxidative degradation of active ingredients, the double-beam source irradiation assemblies are symmetrically arranged up and down and are respectively provided with a beam direction regulating mechanism, the incident angles are alternately changed according to time sequence to form cross dose superposition irradiation, the double-index online detection assembly synchronously detects the retention rate and the sterilization effect of the active ingredients at an outlet, and the controller uses double indexes as feedback to carry out linkage optimization on atmosphere, temperature and beam intensity parameters. The invention solves the problem that sterilization reaches the standard and the pesticide effect is reserved in opposition, and improves the retention rate of volatile active ingredients.

Inventors

  • HUANG MIN
  • CHEN YONGMING
  • YAN YONGSHUN

Assignees

  • 厦门鑫科高能电子有限公司

Dates

Publication Date
20260512
Application Date
20260413

Claims (10)

  1. 1. The utility model provides an irradiation device based on chinese-medicinal material disinfection and sterilization, includes the irradiation cavity and runs through the roller conveyer that irradiation cavity continuous cycle set up, the last carrier body that has placed of roller conveyer, be provided with electron beam generator in the irradiation cavity, the controller setting is at irradiation cavity outer wall, be provided with the RFID module on the carrier body, roller conveyer's the outside is fixed with the charging means, its characterized in that still includes: The multi-mode three-dimensional sensing module is used for detecting the spatial distribution, the gradient distribution, the internal density distribution and the initial bacterial load distribution of the active ingredients of the medicinal materials, and carrying out fusion treatment on all detection data to obtain an irradiation suitability three-dimensional map, wherein the irradiation suitability three-dimensional map comprises a hyperspectral imaging unit and a low-field nuclear magnetic resonance scanning module which are arranged through one side of the feeder, and a terahertz time-domain imaging module and an impedance microorganism load estimation module which are arranged through the other side of the feeder; The evenly-paved feeding mechanism is fixed on the outer side of the roller conveyor, and the paved thickness and paved density of the medicinal materials in the carrier body are adaptively adjusted according to the irradiation suitability three-dimensional map; The irradiation cavity is internally provided with a gas sensor, and is divided into five independent control sections along the conveying direction by six gas curtain isolation doors, wherein each section is provided with an atmosphere adjusting component for independently adjusting and controlling the oxygen concentration in each section; the double-beam source irradiation assembly comprises two sets of electron beam generating devices symmetrically arranged above and below the irradiation cavity, each electron beam generating device is provided with a beam direction adjusting mechanism, the beam direction adjusting mechanism respectively and independently adjusts the incidence angles of beams in the transmission direction and the width direction of a carrier, and the upper and lower sets of electron beam generating devices rotate the respective beam incidence angles according to time sequence to form cross dose superposition irradiation on the upper and lower surfaces of medicinal materials; The double-index online detection assembly is arranged at the outlet of the irradiation cavity and comprises an effective component detection unit and a microorganism residue detection unit, and is used for respectively carrying out online detection on the effective component retention state and the microorganism residue of the irradiated medicinal materials to obtain an effective component retention rate detection value and a sterilization effect detection value; and the controller carries out linkage adjustment on each parameter according to the effective component retention rate detection value and the sterilization effect detection value.
  2. 2. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: the controller is electrically connected with the leveling and feeding mechanism, the atmosphere adjusting component of each section, the dual-beam source irradiation component and the dual-index online detection component; The hyperspectral imaging unit is used for detecting the spatial distribution nonuniformity of the active ingredients on the surface of the medicinal material, processing the detection result into an active ingredient thermodynamic diagram and marking the area with the content of the active ingredients lower than a set value; the low-field nuclear magnetic resonance scanning module carries out non-contact detection on the gradient distribution of the three-dimensional water content of the medicinal material pile body, and processes the detection result into a three-dimensional body figure of the water content; the terahertz time-domain imaging module is used for carrying out penetration detection on the density holes and the density abnormal distribution in the medicinal materials and processing the detection result into a density three-dimensional distribution map; The impedance microorganism load estimation module detects initial bacterial load distribution of the medicinal materials through the telescopic contact type impedance sensing array, and processes the detection result into an initial bacterial load hotspot distribution map; The irradiation suitability three-dimensional map comprises equivalent irradiation penetration thickness, effective component vulnerability grade, initial fungus load grade and irradiation strategy marks of all positions, and the adaptation formula information stored by the RFID module is written in by the controller before loading according to the effective component vulnerability grade of the irradiation suitability three-dimensional map.
  3. 3. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: the even spreading and feeding mechanism comprises an electromagnetic valve arranged at the output end of the feeder and used for controlling the amount of medicinal materials discharged into the carrier body; The inner side of the feeder is embedded with a first electric rod, the telescopic end of the first electric rod is provided with a second electric rod along the X-axis direction, the telescopic end of the second electric rod is connected with a third electric rod, the telescopic end of the third electric rod is connected with a connecting plate, the lower end of the connecting plate is connected with a scraping plate, and one side of the connecting plate is fixed with a vibrating motor; the first electric rod drives the scraping plate to lift and adjust the height along the vertical direction, the second electric rod drives the scraping plate to translate along the X-axis direction, and the third electric rod drives the scraping plate to translate along the Y-axis direction so as to scrape medicinal materials, and the thickness deviation of the spreading materials is controlled within a set range; the vibration frequency of the vibration motor is automatically adjusted within a set range according to the type of the medicinal material.
  4. 4. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: the inner side of the irradiation cavity is provided with six air curtain isolation doors, each air curtain isolation door consists of two air curtain machines which are symmetrically arranged, one air curtain machine penetrates through the upper end of the irradiation cavity, the other air curtain machine penetrates through the lower end of the irradiation cavity, air curtain barriers are formed by up-down opposite blowing, and the six air curtain isolation doors divide the space in the irradiation cavity into five independent control sections so as to control the gas serial leakage quantity between adjacent sections passing through the carrier body within a set range; A nitrogen pipe and a carbon dioxide pipe penetrate through the upper end of the irradiation cavity in each independent control section, the nitrogen pipe is connected with a nitrogen conveying pipeline, nitrogen is conveyed into the independent control sections, the carbon dioxide pipe is connected with a carbon dioxide conveying pipeline, carbon dioxide is conveyed into the independent control sections, and independent continuous adjustment of oxygen concentration in each section is achieved; Each section maintains micro positive pressure to prevent external pollution gas from penetrating.
  5. 5. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: The atmosphere regulation strategy of each section is automatically determined by the controller according to the vulnerability grade of the effective component in the irradiation suitability three-dimensional map, wherein the oxygen concentration is greatly reduced to a low oxygen protection level for the section with high vulnerability grade of the effective component, the oxygen concentration is reduced to a preset medium protection value for the section with medium vulnerability grade of the effective component, and the standard atmosphere condition is maintained for the section with low vulnerability grade of the effective component.
  6. 6. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: And the controller is internally provided with an atmosphere and dose coupling compensation module, calculates the electron beam scattering difference caused by the change of atmosphere components in each section, and automatically compensates and adjusts the beam intensity of the dual-beam source irradiation assembly according to the calculation result to realize decoupling of atmosphere regulation and dose precision.
  7. 7. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: Each set of beam direction adjusting mechanism provided with the electron beam generating device comprises a connecting column, a rotating rod, a T column, a rotating rod, a fourth electric rod and a fifth electric rod, wherein the connecting column is connected with the inner wall of the irradiation cavity and symmetrically arranged, the rotating rod penetrates through the connecting column, the T column is arranged on one side, close to the roller conveyor, of the connecting column, the T column is rotatably connected with the rotating rod, the rotating rod penetrates through the inner side of the T column, the electron beam generating device is arranged on one side, close to the roller conveyor, of the T column, the fifth electric rod is rotatably connected between the electron beam generating device and the T column, the fourth electric rod is rotatably connected between the T column and the inner wall of the irradiation cavity, when the fourth electric rod stretches, the T column is driven to rotate around the rotating rod, the incidence angle of the beam in the conveying direction is adjusted, oblique incidence of the beam is achieved, the penetration path length of the beam in the medicinal material is equivalently prolonged, when the fifth electric rod stretches, the electron beam is driven to rotate around the rotating rod, the incidence angle of the electron beam generating device is adjusted, and the direction of the electron beam is adjusted, and the dose of the medicinal material is controlled to be in the same direction.
  8. 8. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: The incidence angles of the beams are alternately changed according to time sequence, namely, the upper electron beam generating device carries out oblique incidence at a positive deflection angle at a first moment, and the lower electron beam generating device carries out oblique incidence at a negative deflection angle at the first moment to form a cross; The cross scanning period is synchronous with the speed of the conveyor belt, so that each carrier body completely experiences one cross scanning period, each point in the medicinal material is subjected to dose superposition from different directions, and the dose uniformity meets the set requirement.
  9. 9. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: The dual-index online detection assembly further comprises a supporting plate, the supporting plate is arranged above the discharge end of the irradiation cavity, a near infrared spectrometer and a lifting rod are arranged in the supporting plate in a penetrating mode, the lifting rod is located on one side of the near infrared spectrometer, and a sampling probe is arranged at the telescopic end of the lifting rod; the lifting rod drives the sampling probe to lift and adjust the height, the sampling probe forms the microorganism residue detection unit, the surface layer of the medicinal material is subjected to micro-sampling, the ATP value in the sample is detected, and the ATP value is converted into a microorganism residue estimation value, so as to obtain a sterilization effect detection value; The controller controls the carrier body to return to the irradiation cavity for supplementary irradiation when the sterilization effect detection value is lower than a set lower limit, improves and adjusts the nitrogen injection proportion of the corresponding section of the subsequent similar medicinal material when the effective component retention rate detection value is lower than a set threshold, and performs isolation treatment on the batch of medicinal materials and records the current parameter when both detection values are lower than the set lower limit.
  10. 10. The irradiation device based on sterilization of Chinese herbal medicine according to claim 1, further comprising: The controller further comprises a self-learning iteration module, the self-learning Xi Diedai module takes a dataset containing multi-medicinal material type historical irradiation batch records as initial training input, each record in the dataset contains a medicinal material type identifier, an oxygen concentration regulation and control parameter combination of each irradiation section and an actual measurement value of the effective component retention rate of a corresponding batch, and regression fitting processing is carried out on the correlation between the oxygen concentration regulation and control parameter combination and the effective component retention rate to obtain an initial atmosphere protection effect curve of each medicinal material type as output; after each batch of irradiation treatment is completed, additionally writing the batch oxygen concentration regulation and control parameters and the effective component retention rate detection values into the data set, re-fitting the correlation relationship to obtain an updated atmosphere protection effect curve, writing the effective component retention rate detection values and the sterilization effect detection values into exclusive formula units of corresponding medicinal materials, and continuously updating the parameters of the exclusive formula units for the subsequent batch call of the same medicinal materials.

Description

Irradiation device based on Chinese herbal medicine disinfection and sterilization Technical Field The invention relates to the technical field of Chinese herbal medicine disinfection and sterilization, in particular to an irradiation device based on Chinese herbal medicine disinfection and sterilization. Background The traditional Chinese medicinal materials are extremely easy to be polluted by microorganisms in the processes of harvesting, transporting and storing, bacteria, fungi and pests are bred, and serious threat is formed on medication safety. The electron beam irradiation sterilization technology is an important means for sterilizing traditional Chinese medicinal materials, and generally comprises an electron beam generator, a conveying carrier, an irradiation cavity and a dose monitoring module, wherein the traditional Chinese medicinal materials are paved on the conveying carrier, uniformly pass through a beam irradiation area, perform sterilization treatment with fixed or preset beam parameters, and the core control target is only to ensure that the irradiation dose reaches the sterilization requirement. The irradiation cavity is a single fixed air atmosphere, the oxygen concentration is not adjustable, the local temperature rise caused by beam energy deposition lacks effective control, the irreversible oxidative degradation and volatilization loss of the effective components of the traditional Chinese medicine materials are easily caused for the traditional Chinese medicine materials rich in heat sensitivity and oxygen sensitivity effective components such as volatile oil, flavone and terpenes, meanwhile, the design of spreading mode and fixed beam inflow angle leads to uneven irradiation dose distribution of the traditional Chinese medicine materials with different forms and different densities, so that the problem of deep underirradiation sterilization blind areas and excessive surface irradiation drug effect damage exists, and the control system only takes irradiation absorption dose as a sole feedback target, lacks on-line detection and dynamic control capability for the retention state of the effective components, and finally leads to the inherent contradiction between the prior device incapable of breaking sterilization standards and drug effect retention due to mutual superposition of the technical defects of the links. Therefore, development of a novel irradiation device capable of actively protecting effective components of traditional Chinese medicinal materials and realizing multi-variety self-adaptive irradiation treatment is needed, and the core problem of long-term restriction of high-quality development of the traditional Chinese medicinal material irradiation sterilization industry is fundamentally solved. Disclosure of Invention The invention provides an irradiation device based on Chinese herbal medicine disinfection and sterilization, which aims to solve the problems that the active ingredients of the Chinese herbal medicine reach irreversible oxidative degradation and volatilization loss and the sterilization reaches the standard and the irreconcilable contradiction between the drug effect retention when the heat-sensitive or oxygen-sensitive Chinese herbal medicine reaches the requirement of sterilization dosage. In order to solve the technical problems, the technical scheme of the invention is as follows: in a first aspect, an irradiation device based on chinese-medicinal material disinfection and isolation, including irradiation cavity and the roller conveyer that runs through irradiation cavity continuous cycle setting, the carrier body has been placed on the roller conveyer, be provided with electron beam generator in the irradiation cavity, the controller setting is at irradiation cavity outer wall, still includes: The multi-mode three-dimensional sensing module is used for detecting the spatial distribution, the gradient distribution, the internal density distribution and the initial bacterial load distribution of the active ingredients of the medicinal materials, and carrying out fusion processing on all detection data to obtain an irradiation suitability three-dimensional map; The evenly-paved feeding mechanism is fixed on the outer side of the roller conveyor, and the paved thickness and paved density of the medicinal materials in the carrier body are adaptively adjusted according to the irradiation suitability three-dimensional map; The irradiation cavity is internally provided with a gas sensor, and is divided into five independent control sections along the conveying direction by six gas curtain isolation doors, wherein each section is provided with an atmosphere adjusting component for independently adjusting and controlling the oxygen concentration in each section; the double-beam source irradiation assembly comprises two sets of electron beam generating devices symmetrically arranged above and below the irradiation cavity, each electron beam generating devic