CN113057278A - Laser sterilization equipment - Google Patents

Laser sterilization equipment Download PDF

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Publication number
CN113057278A
CN113057278A CN202110333298.8A CN202110333298A CN113057278A CN 113057278 A CN113057278 A CN 113057278A CN 202110333298 A CN202110333298 A CN 202110333298A CN 113057278 A CN113057278 A CN 113057278A
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CN
China
Prior art keywords
laser
feeding device
materials
spreading part
sterilization apparatus
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110333298.8A
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Chinese (zh)
Inventor
吴蓉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Light Yuedong Industrial Intelligent Technology Co ltd
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Suzhou Light Yuedong Industrial Intelligent Technology Co ltd
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Application filed by Suzhou Light Yuedong Industrial Intelligent Technology Co ltd filed Critical Suzhou Light Yuedong Industrial Intelligent Technology Co ltd
Priority to CN202110333298.8A priority Critical patent/CN113057278A/en
Publication of CN113057278A publication Critical patent/CN113057278A/en
Pending legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
    • A23L5/21—Removal of unwanted matter, e.g. deodorisation or detoxification by heating without chemical treatment, e.g. steam treatment, cooking
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/30—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26—Accessories or devices or components used for biocidal treatment

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Nutrition Science (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The invention discloses laser sterilization equipment, which comprises a feeding device, a material spreading part, at least one first laser emitting assembly and a material receiving device, wherein the feeding device comprises a feeding device body, a material spreading part and a receiving device body, the receiving device body comprises a feeding device body, a material spreading part and a receiving device body, the feeding device body comprises a feeding device body: the feeding device is provided with a feeding hole and a discharging hole; the material spreading part is arranged below the discharge port and used for spreading the material; the first laser emission assembly is used for irradiating the elongated linear laser to the material and is arranged above the material paving part; the material receiving device is arranged below the material spreading part; the invention utilizes the laser energy to kill microorganisms efficiently and quickly in a mode of having minimum influence on materials, has high energy utilization rate, can manufacture high energy density in a short time and a local area, can accurately control the temperature, has quick cooling, does not heat the substrate materials for a long time, and does not influence the characteristics of color, property and flavor of the materials; meanwhile, the laser does not produce cross contamination, can be used for powdery solid materials and the like, has high efficiency, energy conservation and environmental protection, and has competitiveness.

Description

Laser sterilization equipment
Technical Field
The invention belongs to the technical field of sterilization equipment, and particularly relates to sterilization equipment for a powder solid.
Background
In the field of food, food is often required to be sterilized, and radiation sterilization and steam sterilization are sterilization equipment mainly adopted in the industries of food in powder solid state, medical treatment and the like at present.
However, after practical use, it has been found that such a sterilization apparatus has some problems: the irradiation changes the genetic molecular structure, so the biological risk is uncertain, and most of foreign enterprises and large domestic enterprises do not accept the irradiation products. The steam sterilization has high energy consumption, long time consumption, large influence on materials, limited usable materials and expensive equipment, the minimum amount of imported steam sterilization equipment is 200 plus one for 300 thousands, the minimum amount of imported steam sterilization equipment is 150 thousands for each home-made steam sterilization equipment, and meanwhile, the environment is also polluted, so that the actual use requirements cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the laser sterilization equipment which can automatically transmit materials and collect sterilized materials, has high sterilization efficiency, small influence on the materials, low cost, low energy consumption, safety and environmental protection.
In order to achieve the purpose, the invention adopts the technical scheme that: a laser sterilization apparatus, comprising:
the feeding device is provided with a feeding hole and a discharging hole;
the material spreading part is arranged below the discharge port and used for spreading materials;
the first laser emission assembly is used for irradiating elongated linear laser onto a material and is arranged above the material paving part;
the material receiving device is arranged below the material spreading part;
the material spreading part spreads materials transmitted by the feeding device, and then the materials penetrate through the first laser emitting assembly to be sterilized and then enter the material receiving device.
Furthermore, the spreading part is a roller with a hollow inner part.
Further, the method also comprises the following steps:
at least one second laser emitting assembly;
the material spreading part is a roller with a hollow inner part, the second laser emission component is arranged in the hollow inner part of the roller, and the material spreading part is made of a material with high laser wavelength transmittance.
Further, the first laser emission assembly and the second laser emission assembly have the same structure, and the first laser emission assembly includes:
a laser for emitting a Gaussian laser;
the beam shaper is arranged below the laser and is used for shaping the Gaussian laser emitted by the laser into flat-top laser with uniform light intensity;
the lens assembly is arranged below the beam shaper and is used for elongating the flat-top laser from the laser with a round point-shaped cross section into elongated linear laser;
the lens assembly comprises a concave lens, a first cylindrical lens, a second cylindrical lens and a third cylindrical lens which are coaxially arranged up and down.
Furthermore, the lens component is made of a material with high laser wavelength transmittance, and a coating layer covers the lens component.
Furthermore, a protective film is arranged on the spreading part.
Furthermore, a cooling assembly is arranged on the outer surface of the paving part and comprises a metal block, and the metal block is connected with the cold water circulation assembly.
Furthermore, cooling assemblies are arranged on the outer surface and the inner surface of the paving part respectively, each cooling assembly comprises a metal block, and the metal blocks are connected with the cold water circulation assemblies.
Furthermore, an inclined hopper is arranged between the discharge port of the feeding device and the spreading part, and the top of the discharge hopper is communicated with the discharge port; the inclined hopper is provided with a feeding port positioned above the spreading piece; and a roller vibrator with rolling teeth is arranged in the inclined hopper.
Furthermore, an adjusting piece which can be adjusted up and down is arranged at the feed opening
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
according to the laser sterilization equipment, the laser energy is utilized to efficiently and quickly kill microorganisms in a mode of minimizing the influence on materials, meanwhile, high energy density can be manufactured in a short time and in a local area, the temperature can be accurately controlled, the temperature is quickly reduced, the substrate material cannot be heated for a long time, the characteristics of color, properties and flavor of the material are not influenced, the elongated linear laser is utilized to efficiently sterilize the automatically transmitted material, and the sterilized material is automatically collected; the laser action process is a non-contact action, does not produce cross contamination, can be used for materials such as powdery solid, and the like, has high efficiency, energy conservation, safety and environmental protection of the whole equipment, is novel sterilization equipment with wide application range, and has strong competitiveness.
Drawings
The technical scheme of the invention is further explained by combining the accompanying drawings as follows:
FIG. 1 is a schematic structural diagram of the present invention in the first embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of a first laser emitting assembly;
FIG. 4 is a schematic diagram of optical path transmission of two laser beams through a lens assembly in the Z and X directions in the first embodiment;
FIG. 5 is a schematic diagram of optical paths of two laser beams passing through a lens assembly in the Z-axis and Y-axis directions in the first embodiment;
FIG. 6 is a schematic structural diagram of the present invention in the second embodiment;
wherein: the device comprises a feeding device 1, a spreading part 2, a first laser emission component 3, a receiving device 4, a cooling component 5, an inclined hopper 6, a roller vibrator 7, an adjusting part 8, a second laser emission component 9, a feeding port 10, a laser 30, a concave lens 31, a first cylindrical lens 32, a second cylindrical lens 33, a third cylindrical lens 34, a beam shaper 35 and a feeding port 60.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention.
The invention is designed based on the following thought: the Gaussian laser emitted by the laser is elongated into a slender linear laser from a laser with a round point-shaped cross section, then the materials spread by the spreading piece are subjected to light transmission sterilization through the slender linear laser line, the laser adopts a single-wavelength laser with high microbial absorption rate and low material absorption rate, so that the color and flavor of the materials are not changed while sterilization is performed, the laser has the advantages of other aspects, such as high energy density, accurate and rapid (almost instantaneous) temperature rise and reduction control, and therefore, microorganisms are killed efficiently and rapidly in a mode of having the minimum influence on the materials, the substrate materials are not heated for a long time, the color, the property and the flavor of the materials are not influenced, and meanwhile, the laser action process is a non-contact effect, no cross pollution is generated, and the laser can be used for materials such as powdery solids and the like.
The following description is made by way of several specific examples.
Example one
Referring to fig. 1, the laser sterilization apparatus according to the embodiment includes four parts, namely a feeding device 1, a spreading member 2, a first laser emitting assembly 3 and a receiving device 4; the left upper side of the top of the feeding device 1 is provided with a funnel-shaped feeding hole 10, and the bottom of the feeding device is provided with a discharging hole; the spreading member 2 in this embodiment is a roller with a hollow interior, and the spreading member 2 is replaced by the roller in the following description of this embodiment; the roller is arranged below the discharge hole of the feeding device 1; when the material feeding device works, materials flow in from the feeding hole 10 and are conveyed to the roller through the feeding device, and then the roller lays the materials on the surface of the roller when rolling; the roller rotates the material clockwise and transmits the material to the material receiving device 4 positioned below the roller while rolling.
The first laser emission component 3 is arranged above the roller in an inclined mode and plays a role in sterilizing materials; of course, the number of the first laser emitting assemblies 3 may be two or more, and the larger the number, the stronger the sterilization capability.
In addition, referring to fig. 3-5, the laser emitted by the first laser emitting assembly in this embodiment needs to be elongated into a slender line shape and then irradiates on the material, so as to ensure a large sterilization range for meeting the actual sterilization requirement.
Specifically, the first laser emitting portion 3 includes an upper portion and a lower portion that are sequentially disposed: a laser 30, a beam shaper 35 and a lens assembly; the laser can emit single-wavelength Gaussian laser with the wavelength range of 5-12 microns, the beam shaper 35 shapes the Gaussian laser into flat-top laser with uniform light intensity distribution after receiving the Gaussian laser, and finally the flat-top laser is emitted into the lens assembly.
The lens assembly comprises a concave lens 31, a first cylindrical lens 32, a second cylindrical lens 33 and a third cylindrical lens 34 which are arranged below the beam shaper 35 and are coaxial in sequence.
The concave lens 31, the first cylindrical lens 32, the second cylindrical lens 33 and the third cylindrical lens 34 are all made of materials with high transmittance of laser wavelength of 5-12 microns, and meanwhile, a transmission-enhanced coating film with the wavelength needs to be added.
First cylindrical lens 32, second cylindrical lens 33 and third cylindrical lens 34 are the semicircle cylindricality, and first cylindrical lens 32 and third cylindrical lens 34's structure is symmetry about the structure sets up, the position of second cylindrical lens 33 is the position after first cylindrical lens 32 rotates 90.
In order to ensure that the flat-top laser light can form a long and thin line-shaped laser light with uniform light intensity on the working surface after passing through the lens assembly, the following conditions need to be satisfied among the concave lens 31, the first cylindrical lens 32, the second cylindrical lens 33 and the third cylindrical lens 34:
f1+d1= f2；f2+d2=f3; d3>0；d4=f4。
wherein f is1、f2、f3And f4Is the focal length of the concave lens, the first cylindrical lens, the second cylindrical lens and the third cylindrical lens, d1D2, d3 and d4 are the spacing between the concave lens, the first cylindrical lens, the second cylindrical lens and the third cylindrical lens(ii) a When the above conditions are satisfied, the laser beam can be irradiated in a long and thin line shape onto the material in the drum.
The working process is as follows: the material enters the feeding device from the feeding hole, the feeding device feeds the material into the roller, and when the roller rolls clockwise, the material is paved on the outer surface of the roller while being conveyed downwards into the receiving device; the first laser emission assembly irradiates laser to the material in a slender line shape to sterilize the material while the material synchronously rolls through the roller; wherein laser adopts the laser to the microorganism absorptivity height, and the single wavelength that the material absorptivity is low, and the microorganism can be killed with high efficiency, fast to the mode that influences the material minimum to laser like this to can accurate controlled temperature, the cooling is fast, can not make the basement material heat up for a long time, does not influence material colour, property, flavor, and the laser action process is non-contact effect simultaneously, does not produce cross contamination, and bactericidal effect is good, and is with low costs, and the practicality is wider.
Referring to fig. 1-2, as a further preferred embodiment, in order to make the material laid on the drum more uniform, an inclined hopper 6 is additionally arranged between the discharge port of the feeding device 4 and the drum, the top of the inclined hopper 6 is communicated with the discharge port of the feeding device, and a feeding port 60 is formed at the right side of the bottom of the inclined hopper 6, and the feeding port 60 is positioned above the top of the drum; a roller vibrator 7 with rolling teeth is arranged at the bottom of the inclined hopper 6; when the material spreading machine works, the rolling teeth are driven by the vibration of the roller vibrator 7 to uniformly spread materials on the roller.
Referring to fig. 2, as a further preferred embodiment, in order to adjust the thickness of the material laid on the drum in real time, an adjusting member 8 is additionally arranged at the feeding port 60, the adjusting member 8 is in a strip shape, and the adjusting member 8 can move up and down through a power mechanism, so that the height of the feeding port can be adjusted in real time, and the thickness of the material laid on the drum is further controlled.
As a further preferred embodiment, since the drum is irradiated with the laser light for a long time, the temperature of the drum may rise; therefore, a cooling component 5 is additionally arranged on the outer surface of the roller, and the cooling component 5 comprises a metal block which is connected with a cold water circulation component; when the metal block cooling device works, the metal block is close to the roller, the metal block and the roller are subjected to close-range heat transfer, and then the metal block is cooled by the cold water circulating assembly, so that the roller is rapidly cooled, and the temperature of the roller is kept constant within the process requirement range.
As a further preferred embodiment, the material receiving device 4 is a material receiving hopper located below the roller, and an outlet of the material receiving hopper is communicated with the packaging bag, so that the sterilized materials can be conveniently collected.
Example two
Referring to fig. 6, the present embodiment discloses another laser sterilization apparatus, which is different from the first embodiment in that: the hollow roller of the material spreading member 2 is made of a material with high laser transmittance of a single wavelength in a wavelength range of 5-12 microns, and the material spreading member is replaced by a light-transmitting roller in the following description of the embodiment; in addition, a second laser emission component with the same structure as the first laser emission component is arranged in the hollow of the light-transmitting roller, and the number of the second laser emission components can be two or more.
Wherein, owing to add the second laser emission subassembly in the printing opacity cylinder cavity, and even high printing opacity material also can only reach laser 95% ~99% and see through, the printing opacity cylinder can heat up after long-time accumulation, so also need cool off the printing opacity cylinder, surface and the internal surface at the printing opacity cylinder have all set up a cooling module in this embodiment to can reach the rapid refrigerated function of the temperature of printing opacity cylinder, maintain the temperature of printing opacity cylinder invariable in the technological requirement scope.
In addition, the printing opacity cylinder in this embodiment is 10.6 microns laser high light transmission material, and the thickness can guarantee that structural strength within range is the thinner the better to reduce the absorption of printing opacity cylinder itself to the laser, promote the ability and the efficiency of disinfecting.
In order to ensure the safety of food contact, a protective film such as an aluminum oxide or silicon dioxide coating film is additionally arranged on the light-transmitting roller for protection.
The working process of the embodiment is as follows: firstly, materials enter a feeding device from a feeding hole, and the feeding device lays the materials on the outer surface of a light-transmitting roller; when materials synchronously roll through the light-transmitting roller, the first laser emission assembly and the second laser emission assembly simultaneously irradiate the elongated linear laser onto the materials, and the materials can be sterilized by the laser in both the upper direction and the lower direction, so that the uneven sterilization effect caused by the attenuation of the light intensity caused by the fact that one beam of laser penetrates the materials can be balanced; meanwhile, laser irradiation is carried out in the upper direction and the lower direction of the materials, so that the thickness of the spreading materials can be increased to improve the yield of the sterilized materials.
Of course, the two embodiments described above cannot include all embodiments, the auxiliary material component may also be a conveyor belt, and when the conveyor belt is used for transmission, only one first laser emission component located outside the material spreading component can be used for penetrating and sterilizing, so that the equipment can meet the use requirements in different fields.
At present, in the experiment of some powdery solid materials, such as spice, the power of laser is 400-1600 milliwatts per square millimeter, the paving thickness is 1-5 millimeters, and the acting time is 0.01-1 second, so that the sterilization requirement can be well met.
According to the laser sterilization equipment, the laser energy is utilized to efficiently and quickly kill microorganisms in a mode of minimizing the influence on materials, meanwhile, high energy density can be manufactured in a short time and a local area, the temperature can be accurately controlled, the temperature is quickly reduced, the base material cannot be heated for a long time, the characteristics of color, property and flavor of the material are not influenced, the elongated linear laser is utilized to efficiently sterilize the automatically transmitted material, and the sterilized material is automatically collected; the laser action process is a non-contact action, does not produce cross contamination, can be used for materials such as powdery solid, and the like, has high efficiency, energy conservation, safety and environmental protection of the whole equipment, is novel sterilization equipment with wide application range, and has strong competitiveness.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims (10)

1. A laser sterilization apparatus, comprising:
the feeding device is provided with a feeding hole and a discharging hole;
the material spreading part is arranged below the discharge port and used for spreading materials;
the first laser emission assembly is used for irradiating elongated linear laser onto a material and is arranged above the material paving part;
the material receiving device is arranged below the material spreading part;
the material spreading part spreads materials transmitted by the feeding device, and then the materials penetrate through the first laser emitting assembly to be sterilized and then enter the material receiving device.
2. The laser sterilization apparatus as set forth in claim 1, wherein: the spreading part is a roller with a hollow inner part.
3. The laser sterilization apparatus as claimed in claim 1, further comprising:
at least one second laser emitting assembly;
the material spreading part is a roller with a hollow inner part, the second laser emission component is arranged in the hollow inner part of the roller, and the material spreading part is made of a material with high laser wavelength transmittance.
4. The laser sterilization apparatus as claimed in claim 3, wherein the first laser transmitter assembly and the second laser transmitter assembly are identical in structure, and the first laser transmitter assembly comprises:
a laser for emitting a Gaussian laser;
the beam shaper is arranged below the laser and is used for shaping the Gaussian laser emitted by the laser into flat-top laser with uniform light intensity;
the lens assembly is arranged below the beam shaper and is used for elongating the flat-top laser from the laser with a round point-shaped cross section into elongated linear laser;
the lens assembly comprises a concave lens, a first cylindrical lens, a second cylindrical lens and a third cylindrical lens which are coaxially arranged up and down.
5. The laser sterilization apparatus as set forth in claim 4, wherein: the lens component is made of materials with high laser wavelength transmittance, and a coating layer covers the lens component.
6. The laser sterilization apparatus as set forth in claim 1, wherein: and a protective film is also arranged on the spreading part.
7. The laser sterilization apparatus as set forth in claim 2, wherein: and a cooling component is arranged on the outer surface of the spreading part and comprises a metal block, and the metal block is connected with the cold water circulation component.
8. The laser sterilization apparatus as claimed in claim 3, wherein cooling units are provided at both the outer surface and the inner surface of the paver, said cooling units comprising a metal block connected to a cold water circulation unit.
9. The laser sterilization apparatus as set forth in claim 1, wherein: an inclined hopper is further arranged between the discharge port of the feeding device and the spreading part, and the top of the discharge hopper is communicated with the discharge port; the inclined hopper is provided with a feeding port positioned above the spreading piece; and a roller vibrator with rolling teeth is arranged in the inclined hopper.
10. The laser sterilization apparatus as set forth in claim 9, wherein: and an adjusting piece which can be adjusted up and down is arranged at the feed opening.
CN202110333298.8A 2021-03-29 2021-03-29 Laser sterilization equipment Pending CN113057278A (en)

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Application Number Priority Date Filing Date Title
CN202110333298.8A CN113057278A (en) 2021-03-29 2021-03-29 Laser sterilization equipment

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Application Number Priority Date Filing Date Title
CN202110333298.8A CN113057278A (en) 2021-03-29 2021-03-29 Laser sterilization equipment

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CN113057278A true CN113057278A (en) 2021-07-02

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079626A (en) * 1992-04-27 1993-12-22 英国农渔业及食品部 Handle the method and the device of substrate
CN103465471A (en) * 2013-08-09 2013-12-25 上海大学 Laser packaging method and device
CN111603599A (en) * 2020-05-09 2020-09-01 福建新位激光科技有限公司 Air curtain type laser aerosol disinfection device and use method
CN112190727A (en) * 2020-09-15 2021-01-08 武汉光谷航天三江激光产业技术研究院有限公司 Ultraviolet laser sterilization and disinfection system and method based on conveyor belt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1079626A (en) * 1992-04-27 1993-12-22 英国农渔业及食品部 Handle the method and the device of substrate
CN103465471A (en) * 2013-08-09 2013-12-25 上海大学 Laser packaging method and device
CN111603599A (en) * 2020-05-09 2020-09-01 福建新位激光科技有限公司 Air curtain type laser aerosol disinfection device and use method
CN112190727A (en) * 2020-09-15 2021-01-08 武汉光谷航天三江激光产业技术研究院有限公司 Ultraviolet laser sterilization and disinfection system and method based on conveyor belt

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