CN113350547A - Device and method for sterilizing paper-aluminum-plastic composite coiled material by coupling chemical bactericide and irradiation - Google Patents
Device and method for sterilizing paper-aluminum-plastic composite coiled material by coupling chemical bactericide and irradiation Download PDFInfo
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- CN113350547A CN113350547A CN202110726692.8A CN202110726692A CN113350547A CN 113350547 A CN113350547 A CN 113350547A CN 202110726692 A CN202110726692 A CN 202110726692A CN 113350547 A CN113350547 A CN 113350547A
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 133
- 239000002131 composite material Substances 0.000 title claims abstract description 119
- 239000004033 plastic Substances 0.000 title claims abstract description 119
- 229920003023 plastic Polymers 0.000 title claims abstract description 119
- 239000000463 material Substances 0.000 title claims abstract description 90
- 239000000126 substance Substances 0.000 title claims abstract description 80
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 79
- 239000003899 bactericide agent Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008878 coupling Effects 0.000 title claims description 16
- 238000010168 coupling process Methods 0.000 title claims description 16
- 238000005859 coupling reaction Methods 0.000 title claims description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 76
- 230000002195 synergetic effect Effects 0.000 claims abstract description 14
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000004913 activation Effects 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 28
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 5
- 239000005708 Sodium hypochlorite Substances 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- -1 peroxide Hydrogen Chemical class 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000003206 sterilizing agent Substances 0.000 description 18
- 238000012546 transfer Methods 0.000 description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 239000010410 layer Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000005022 packaging material Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000010894 electron beam technology Methods 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 3
- 239000011091 composite packaging material Substances 0.000 description 3
- 230000002070 germicidal effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 230000000855 fungicidal effect Effects 0.000 description 2
- 239000000417 fungicide Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012371 Aseptic Filling Methods 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000005003 food packaging material Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
-
- 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
- A61L2/085—Infrared 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)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
本发明公开了一种化学杀菌剂和辐照耦合的用于纸铝塑复合卷材杀菌的装置和方法，所述纸铝塑复合卷材依次经过预杀菌段Ⅰ、辐照段Ⅱ以及无菌热空气段Ⅲ，预杀菌段Ⅰ通过化学杀菌剂和红外辐照的协同作用钝化纸铝塑复合卷材表面的微生物，实现预杀菌；辐照段Ⅱ通过低强度的脉冲强光辐照，进一步激活化学杀菌剂，并在化学杀菌剂和脉冲强光辐照的协同作用下实现彻底杀菌；无菌热空气段Ⅲ用于清除纸铝塑复合卷材上残留化学杀菌剂。本发明中，化学杀菌剂浓度低，脉冲强光强度弱，避免了高浓度化学杀菌剂的残留和脉冲强光辐照对材料性质的破坏，红外加热和脉冲强光辐照的双重激活作用使化学杀菌剂充分活化，能够实现全面有效地杀菌，实现材料无菌化处理。
The invention discloses a device and method for sterilizing a paper-aluminum-plastic composite coil, which is coupled with a chemical bactericide and irradiation. Hot air section III, pre-sterilization section I passivate the microorganisms on the surface of the paper-aluminum-plastic composite coil through the synergistic effect of chemical bactericides and infrared radiation to achieve pre-sterilization; The chemical bactericide is further activated, and complete sterilization is achieved under the synergistic effect of the chemical bactericide and pulsed strong light irradiation; the sterile hot air section III is used to remove the residual chemical bactericide on the paper-aluminum-plastic composite coil. In the present invention, the concentration of chemical bactericide is low, and the intensity of pulsed strong light is weak, which avoids the residue of high concentration chemical bactericide and the damage to material properties caused by pulsed strong light irradiation. The dual activation effect of infrared heating and pulsed strong light irradiation makes the The chemical bactericide is fully activated, which can achieve comprehensive and effective sterilization and aseptic treatment of materials.
Description
Technical Field
The invention relates to the technical field of aseptic filling of liquid beverages, in particular to a device and a method for sterilizing a paper-aluminum-plastic composite coiled material by coupling chemical bactericide and irradiation.
Background
Paper-plastic-aluminum composite packages are widely used in the packaging of liquid dairy products, liquid beverages and the like and comprise a core layer of fibrous material (e.g., paper), a layer of thermoplastic material (e.g., polyethylene film) at least on the inner side of the core layer, and possibly a layer of oxygen barrier material (e.g., aluminum foil, ethylene vinyl alcohol (EVOH) foil and the like.
Chemical sterilization is a commonly used sterilization method. The paper-aluminum-plastic composite coiled material is generally sterilized by immersing the paper-aluminum-plastic composite coiled material into a tank of liquid chemical sterilizing agent (such as hydrogen peroxide solution, peracetic acid solution and the like). Patent CN 103842257B discloses a method of sterilizing a web of packaging material by transferring the web into a bath containing 30% high temperature aqueous hydrogen peroxide, and drying the packaging material by spraying air flow through a drying device, wherein the consumption of chemical sterilizing agent is high, and the chemical sterilizing agent is continuously added into the bath to maintain a certain concentration, so that the web of packaging material has a high risk of chemical sterilizing agent residue, and the waste liquid generated in industrial production is not environment-friendly. Irradiation treatment is another effective way of sterilizing a web of composite packaging material. Patent CN 105705168B discloses an electron beam sterilization device for processing food packaging material, at least one electron beam emitter being mounted on a frame along the path of the processed material, on opposite sides of a web guide channel, each emitter comprising a vacuum tube in which electrons emitted by a cathode are accelerated by an electrostatic field and exit from the tube in the form of an electron beam and pass through an irradiation window so as to strike a corresponding face of the packaging material as the web moves vertically through the guide channel. High doses of electron beam radiation, while having a good germicidal effect, have an adverse effect on the properties of the packaging material.
In conclusion, how to avoid the residue of the high-concentration chemical bactericide and the damage of the pulsed strong light irradiation to the properties of the paper aluminum-plastic composite material, and to fully activate the chemical bactericide by utilizing the activation effect of the pulsed strong light irradiation, so as to realize comprehensive and effective sterilization and realize the aseptic treatment of the paper aluminum-plastic composite packaging material is a problem which needs to be solved urgently.
Disclosure of Invention
In order to overcome a series of defects in the prior art, the invention aims to provide a device for sterilizing a paper aluminum-plastic composite coiled material by coupling chemical bactericide and irradiation, which comprises a pre-sterilization section I, an irradiation section II and a sterile hot air section III and is characterized in that the paper aluminum-plastic composite coiled material 2 sequentially passes through the pre-sterilization section I, the irradiation section II and the sterile hot air section III, wherein the pre-sterilization section I passivates microorganisms on the surface of the paper aluminum-plastic composite coiled material 2 through the synergistic action of the chemical bactericide and infrared irradiation to realize the pre-sterilization of the paper aluminum-plastic composite coiled material 2; the irradiation section II further activates the chemical bactericide through low-intensity pulsed strong light irradiation, and realizes the thorough sterilization of the paper aluminum plastic composite coiled material 2 under the synergistic effect of the chemical bactericide and the pulsed strong light irradiation; and the sterile hot air section III is used for removing the residual chemical bactericide on the paper-aluminum-plastic composite coiled material 2.
Preferably, the pre-sterilization section I comprises a pre-sterilization chamber 9, and the pre-sterilization chamber 9 is provided with a pre-sterilization chamber inlet 5 and a pre-sterilization chamber outlet 10 for the paper-aluminum-plastic composite coiled material 2 to pass through; the inlet 5 of the pre-sterilizing chamber is sequentially provided with a guide wall I3 and a guide roller I4 for guiding the paper aluminum plastic composite coiled material 2 to vertically enter the inlet 5 of the pre-sterilizing chamber; and the two sides of the inner wall of the pre-sterilizing chamber 9 are provided with an atomizing nozzle 8 for spraying atomized sterilizing agent to the paper-aluminum-plastic composite coiled material 2 and an infrared lamp 6 for heating.
Preferably, the pre-sterilizing chamber 9 is closed, and a suction bottle 14 for sucking out excess atomized sterilizing agent in the pre-sterilizing chamber 9 is arranged at the bottom of the pre-sterilizing chamber, wherein the suction bottle 14 comprises a suction bottle inlet valve 11, a suction bottle body 12 and a suction bottle outlet valve 13; and the atomizing nozzle 8 is externally connected with a bactericide pipeline 7.
Preferably, the irradiation section II comprises an irradiation chamber 23, the irradiation chamber 23 is provided with an irradiation chamber inlet 16 and an irradiation chamber outlet 25 for the paper-aluminum-plastic composite coiled material 2 to pass through, and the irradiation chamber inlet 16 is provided with a guide wall II 15 for guiding the paper-aluminum-plastic composite coiled material 2 to vertically enter the irradiation chamber 23; be provided with in the irradiation chamber 23 including first transfer roller 18 be used for the compound coiled material 2 conveying of rotary drive paper plastic-aluminum a plurality of transfer rollers in to and including guide roller II 17 and respectively with a plurality of guide rollers that are used for controlling direction of transfer roller one-to-one, the compound coiled material 2 of paper plastic-aluminum that conveys out from first transfer roller 18 and guide roller II 17 all forms U type region under the conveying of other transfer rollers, and all is provided with the spiral pulse highlight fluorescent tube that is used for activating chemical fungicide and radiation sterilization in the middle of every U type region.
Preferably, the number of the conveying rollers including the first conveying roller 18 is 2N +1, and the number of the spiral pulse strong light tubes is 2N, wherein N is an integer greater than or equal to 1.
Preferably, a shielding cover 24 for shielding the pulsed strong light is arranged outside the irradiation chamber 23.
Preferably, the sterile hot air section iii comprises a sterile hot air chamber 26, the sterile hot air chamber 26 is provided with a sterile hot air chamber outlet 28 through which the paper aluminum plastic composite coil 2 passes, sterile hot air nozzles 27 are arranged above and below the inside of the sterile hot air chamber 26, the sterile hot air chamber outlet 28 faces the irradiation chamber outlet 25, and the paper aluminum plastic composite coil 2 passes through the sterile hot air chamber 26 and is always parallel to the upper and lower parts of the sterile hot air chamber 26.
A method for sterilizing a paper aluminum plastic composite coiled material by coupling chemical bactericide and irradiation comprises the following steps:
the paper-aluminum-plastic composite coiled material 2 sequentially passes through the guide wall I3 and the guide roller I4 and enters the pre-sterilizing chamber 9 through the inlet 5 of the pre-sterilizing chamber, the chemical sterilizing agent is uniformly sprayed to two sides of the paper-aluminum-plastic composite coiled material 2 through the atomizing nozzle 8 communicated with the sterilizing agent pipeline 7, a layer of uniform film is formed on the surface of the paper-aluminum-plastic composite coiled material 2, the sterilizing agent is heated and activated through the irradiation of the infrared lamp 6, and pre-sterilization is realized under the synergistic effect of the chemical sterilizing agent and the infrared irradiation;
the paper-aluminum-plastic composite coiled material 2 conveyed out of the pre-sterilizing chamber 9 passes through a guide wall II 15 and enters an irradiation chamber 23 through an irradiation chamber inlet 16, and the first conveying roller 18 rotates and the guide roller II 17 guides the paper-aluminum-plastic composite coiled material 2 to enter an S-shaped path after passing through the first conveying roller 18 and the guide roller II 17 and receive the irradiation of a spiral pulse highlight lamp tube;
the paper aluminum plastic composite coiled material 2 directly enters a sterile hot air chamber 26 through an irradiation chamber outlet 25, and sterile hot air nozzles 27 above and below the sterile hot air chamber 26 spray sterile hot air to the surface of the paper aluminum plastic composite coiled material 2.
Preferably, the concentration of the chemical germicide is 50-2500ppm, and the species includes hydrogen peroxide, peracetic acid or sodium hypochlorite; when the concentration of the atomized bactericide in the pre-sterilizing chamber 9 rises, the surplus atomized bactericide is sucked out by the suction bottle 14.
Preferably, the temperature of the sterile hot air is 50-80 ℃.
Compared with the prior art, the invention has the following beneficial effects:
the invention relates to a device and a method for sterilizing a paper aluminum-plastic composite coiled material by coupling chemical bactericide and irradiation.A low-concentration atomized chemical bactericide is sprayed on the surface of the paper aluminum-plastic composite coiled material, the chemical bactericide is heated and activated by irradiation of an infrared lamp, microorganisms on the surface of the coiled material are passivated by the synergistic action of the chemical bactericide and the infrared irradiation, then the chemical bactericide is further activated by low-intensity pulsed high-light irradiation, the coiled material is thoroughly sterilized under the synergistic action of the chemical bactericide and the pulsed high-light irradiation, and finally the residual chemical bactericide is removed by sterile hot air; the chemical bactericide required by the invention has low concentration and weak strong pulse light intensity, avoids the residue of the high-concentration chemical bactericide and the damage of the strong pulse light irradiation to the properties of the paper-aluminum-plastic composite material, fully activates the chemical bactericide by the double activation of infrared heating and the strong pulse light irradiation, can realize comprehensive and effective sterilization, and realizes the aseptic treatment of the paper-aluminum-plastic composite packaging material.
Drawings
FIG. 1 is a schematic view of the plane A-A of the preferred embodiment of the present invention;
FIG. 2 is a schematic plan view of a pre-sterilizing chamber assembly B-B according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of a plane structure of a radiation sterilizing chamber B-B according to a preferred embodiment of the present invention;
FIG. 4 is a schematic view of a preferred embodiment of a sterile warm air chamber C-C in plan view;
fig. 5 is a schematic perspective view of a preferred embodiment of the present invention.
The reference numbers in the figures are:
1-a roller shaft, 2-a paper-aluminum-plastic composite coiled material, 3-a guide wall I, 4-a guide roller I, 5-a pre-sterilization chamber inlet, 6-an infrared lamp, 7-a sterilization agent pipeline, 8-an atomizing nozzle, 9-a pre-sterilization chamber, 10-a pre-sterilization chamber outlet, 11-a suction bottle inlet valve, 12-a suction bottle body, 13-a suction bottle outlet valve, 14-a suction bottle, 15-a guide wall II, 16-an irradiation chamber inlet, 17-a guide roller II, 18-a first conveying roller, 19-a spiral pulse highlight lamp tube I, 20-a second conveying roller, 21-a third conveying roller, 22-a spiral pulse highlight lamp tube II, 23-an irradiation chamber, 24-a shielding cover, 25-an irradiation chamber outlet and 26-a sterile hot air chamber, 27-sterile hot air nozzle, 28-sterile hot air chamber outlet, I-pre-sterilization section, II-irradiation section and III-sterile hot air.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiments and the directional terms described below with reference to the drawings are exemplary and intended to be used in the explanation of the invention, and should not be construed as limiting the invention.
In a wide embodiment of the invention, the device for sterilizing the paper-aluminum-plastic composite coiled material by coupling the chemical bactericide and the irradiation comprises a pre-sterilization section I, an irradiation section II and a sterile hot air section III, and is characterized in that the paper-aluminum-plastic composite coiled material 2 sequentially passes through the pre-sterilization section I, the irradiation section II and the sterile hot air section III, wherein the pre-sterilization section I passivates microorganisms on the surface of the paper-aluminum-plastic composite coiled material 2 through the synergistic effect of the chemical bactericide and the infrared irradiation to realize the pre-sterilization of the paper-aluminum-plastic composite coiled material 2; the irradiation section II further activates the chemical bactericide through low-intensity pulsed strong light irradiation, and realizes the thorough sterilization of the paper aluminum plastic composite coiled material 2 under the synergistic effect of the chemical bactericide and the pulsed strong light irradiation; and the sterile hot air section III is used for removing the residual chemical bactericide on the paper-aluminum-plastic composite coiled material 2.
Preferably, the pre-sterilization section I comprises a pre-sterilization chamber 9, and the pre-sterilization chamber 9 is provided with a pre-sterilization chamber inlet 5 and a pre-sterilization chamber outlet 10 for the paper-aluminum-plastic composite coiled material 2 to pass through; the inlet 5 of the pre-sterilizing chamber is sequentially provided with a guide wall I3 and a guide roller I4 for guiding the paper aluminum plastic composite coiled material 2 to vertically enter the inlet 5 of the pre-sterilizing chamber; and the two sides of the inner wall of the pre-sterilizing chamber 9 are provided with an atomizing nozzle 8 for spraying atomized sterilizing agent to the paper-aluminum-plastic composite coiled material 2 and an infrared lamp 6 for heating.
Preferably, the pre-sterilizing chamber 9 is closed, and a suction bottle 14 for sucking out excess atomized sterilizing agent in the pre-sterilizing chamber 9 is arranged at the bottom of the pre-sterilizing chamber, wherein the suction bottle 14 comprises a suction bottle inlet valve 11, a suction bottle body 12 and a suction bottle outlet valve 13; and the atomizing nozzle 8 is externally connected with a bactericide pipeline 7.
Preferably, the irradiation section II comprises an irradiation chamber 23, the irradiation chamber 23 is provided with an irradiation chamber inlet 16 and an irradiation chamber outlet 25 for the paper-aluminum-plastic composite coiled material 2 to pass through, and the irradiation chamber inlet 16 is provided with a guide wall II 15 for guiding the paper-aluminum-plastic composite coiled material 2 to vertically enter the irradiation chamber 23; be provided with in the irradiation chamber 23 including first transfer roller 18 be used for the compound coiled material 2 conveying of rotary drive paper plastic-aluminum a plurality of transfer rollers in to and including guide roller II 17 and respectively with a plurality of guide rollers that are used for controlling direction of transfer roller one-to-one, the compound coiled material 2 of paper plastic-aluminum that conveys out from first transfer roller 18 and guide roller II 17 all forms U type region under the conveying of other transfer rollers, and all is provided with the spiral pulse highlight fluorescent tube that is used for activating chemical fungicide and radiation sterilization in the middle of every U type region.
Preferably, the number of the conveying rollers including the first conveying roller 18 is 2N +1, and the number of the spiral pulse strong light tubes is 2N, wherein N is an integer greater than or equal to 1.
Preferably, a shielding cover 24 for shielding the pulsed strong light is arranged outside the irradiation chamber 23.
Preferably, the sterile hot air section iii comprises a sterile hot air chamber 26, the sterile hot air chamber 26 is provided with a sterile hot air chamber outlet 28 through which the paper aluminum plastic composite coil 2 passes, sterile hot air nozzles 27 are arranged above and below the inside of the sterile hot air chamber 26, the sterile hot air chamber outlet 28 faces the irradiation chamber outlet 25, and the paper aluminum plastic composite coil 2 passes through the sterile hot air chamber 26 and is always parallel to the upper and lower parts of the sterile hot air chamber 26.
A method for sterilizing a paper aluminum plastic composite coiled material by coupling chemical bactericide and irradiation comprises the following steps:
the paper-aluminum-plastic composite coiled material 2 sequentially passes through the guide wall I3 and the guide roller I4 and enters the pre-sterilizing chamber 9 through the inlet 5 of the pre-sterilizing chamber, the chemical sterilizing agent is uniformly sprayed to two sides of the paper-aluminum-plastic composite coiled material 2 through the atomizing nozzle 8 communicated with the sterilizing agent pipeline 7, a layer of uniform film is formed on the surface of the paper-aluminum-plastic composite coiled material 2, the sterilizing agent is heated and activated through the irradiation of the infrared lamp 6, and pre-sterilization is realized under the synergistic effect of the chemical sterilizing agent and the infrared irradiation;
the paper-aluminum-plastic composite coiled material 2 conveyed out of the pre-sterilizing chamber 9 passes through a guide wall II 15 and enters an irradiation chamber 23 through an irradiation chamber inlet 16, and the first conveying roller 18 rotates and the guide roller II 17 guides the paper-aluminum-plastic composite coiled material 2 to enter an S-shaped path after passing through the first conveying roller 18 and the guide roller II 17 and receive the irradiation of a spiral pulse highlight lamp tube;
the paper aluminum plastic composite coiled material 2 directly enters a sterile hot air chamber 26 through an irradiation chamber outlet 25, and sterile hot air nozzles 27 above and below the sterile hot air chamber 26 spray sterile hot air to the surface of the paper aluminum plastic composite coiled material 2.
Preferably, the concentration of the chemical germicide is 50-2500ppm, and the species includes hydrogen peroxide, peracetic acid or sodium hypochlorite; when the concentration of the atomized bactericide in the pre-sterilizing chamber 9 rises, the surplus atomized bactericide is sucked out by the suction bottle 14.
Preferably, the temperature of the sterile hot air is 50-80 ℃.
The present invention will be described in further detail below with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention.
Referring to fig. 1-5, a device for sterilizing a paper-aluminum-plastic composite coiled material by coupling chemical bactericide and irradiation, the sterilizing device comprises a pre-sterilizing chamber 9 for pre-sterilizing the paper-aluminum-plastic composite coiled material 2, the pre-sterilizing chamber 9 is provided with a pre-sterilizing chamber inlet 5 and a pre-sterilizing chamber outlet 10 for the paper-aluminum-plastic composite coiled material 2 to pass through, the pre-sterilizing chamber inlet 5 is provided with a guide roller i 4 for guiding the paper-aluminum-plastic composite coiled material 2 to vertically enter the pre-sterilizing chamber inlet 5, two sides of the inner wall of the pre-sterilizing chamber 9 are provided with an atomizing nozzle 8 for spraying atomized bactericide to the paper-aluminum-plastic composite coiled material 2 and an infrared lamp 6 for heating, the bottom of the pre-sterilizing chamber 9 is also provided with a suction bottle 14 for pumping out redundant atomized bactericide, and the suction bottle 14 comprises a suction bottle inlet valve 11, a suction bottle body 12 and a suction bottle outlet valve 13; and the atomizing nozzle 8 is externally connected with a bactericide pipeline 7.
The device for sterilizing the paper-aluminum-plastic composite coiled material by coupling the chemical bactericide and the irradiation also comprises an irradiation chamber 23 for sterilizing the paper-aluminum-plastic composite coiled material 2 by irradiation, wherein the irradiation chamber 23 is provided with an irradiation chamber inlet 16 and an irradiation chamber outlet 25 for the paper-aluminum-plastic composite coiled material 2 to pass through, and the irradiation chamber inlet 16 is provided with a guide wall II 15 for guiding the paper-aluminum-plastic composite coiled material 2 to vertically enter the irradiation chamber 23; the irradiation chamber 23 is internally provided with a first conveying roller 18, a second conveying roller 20, a third conveying roller 21 and a guide roller (part of which is not shown) for controlling the conveying direction, wherein the first conveying roller, the second conveying roller and the third conveying roller 21 are used for rotationally driving the paper aluminum plastic composite coiled material 2 to convey, and a spiral pulse strong light lamp tube I19 and a spiral pulse strong light lamp tube II 22 for activating a chemical bactericide and performing irradiation sterilization are arranged in the middle of a U-shaped area formed by conveying the paper aluminum plastic composite coiled material 2. A shielding cover 24 for shielding the pulsed strong light is arranged outside the irradiation chamber 23.
The device for sterilizing the paper aluminum-plastic composite coiled material by the chemical bactericide and irradiation coupling further comprises a sterile hot air chamber 26 for removing the residual chemical bactericide on the paper aluminum-plastic composite coiled material 2, wherein the sterile hot air chamber 26 is provided with a sterile hot air chamber outlet 28 through which the paper aluminum-plastic composite coiled material 2 passes, the sterile hot air chamber outlet 28 is opposite to the irradiation chamber outlet 25, and the paper aluminum-plastic composite coiled material 2 is always parallel to the upper part and the lower part of the sterile hot air chamber 26 when passing through the sterile hot air chamber 26. Sterile hot air nozzles 27 are provided both above and below within the sterile hot air chamber 26.
The working process of the device for coupling the chemical bactericide and the irradiation for the paper-aluminum-plastic composite coiled material 2 sterilizing device is as follows:
the paper-aluminum-plastic composite coiled material 2 sequentially passes through a pre-sterilization section I, an irradiation section II and a sterile hot air section III.
The roller shaft 1 rotates to convey the paper aluminum plastic composite coiled material 2 to pass through the guide wall I3 and the guide roller I4 and enter the pre-sterilization chamber 9 through the pre-sterilization chamber inlet 5, the chemical bactericide with the concentration of 50-2500ppm is uniformly sprayed to the two sides of the paper aluminum plastic composite coiled material 2 through the atomizing nozzles 8 communicated with the bactericide pipeline 7, a layer of uniform film is formed on the surface of the paper aluminum plastic composite coiled material 2, the bactericide is heated and activated by irradiation of the infrared lamp 6, pre-sterilization is realized under the synergistic effect of the chemical bactericide and infrared irradiation, and when the concentration of the atomized bactericide in the pre-sterilization chamber 9 is increased, redundant atomized bactericide can be pumped out through the suction bottle 14 to prevent the atomized bactericide from escaping and polluting the environment; the paper-aluminum-plastic composite coiled material 2 conveyed out of the pre-sterilizing chamber 9 passes through the guide wall II 15 and enters the irradiation chamber 23 through the irradiation chamber inlet 16, the first conveying roller 18 rotates and the guide roller II 17 guides the paper-aluminum-plastic composite coiled material 2 to enter an S-shaped path after passing through the first conveying roller 18 and the guide roller II 17, and when passing between the second conveying roller 20 and the third conveying roller 21, the surface of the paper-aluminum-plastic composite coiled material 2 is irradiated by the spiral pulse highlight lamp I19 and the spiral pulse highlight lamp II 22, so that on one hand, the chemical sterilizing agent on the surface of the paper-aluminum-plastic composite coiled material 2 is activated, the hydrogen peroxide (H2O2) is promoted to be decomposed into water (H2O) and oxygen (O2), and on the other hand, the pulse highlight irradiation can also directly kill microorganisms which are passivated by the cooperation of the chemical sterilizing agent and the infrared irradiation; the paper aluminum plastic composite coiled material 2 enters a sterile hot air chamber 26 through an irradiation chamber outlet 25, and sterile hot air nozzles 27 above and below the sterile hot air chamber 26 spray sterile hot air with the temperature of 50-80 ℃ to the surface of the paper aluminum plastic composite coiled material 2 so as to remove chemical bactericides remained on the surface of the paper aluminum plastic composite coiled material 2.
To further illustrate the present invention, according to the preferred embodiment, the paper-aluminum-plastic composite coil 2 is subjected to the treatments of the tests 1-2 and the comparative tests 1-5, respectively, and the sterilization effects of different sterilization modes on the bottle blanks are compared according to the log values of the sterilization efficiency, and the results are shown in table 1.
TABLE 1 comparison of the Sterilization results for different treatment regimes
From the above table, it can be seen that the paper aluminum plastic composite coiled material 2 sterilized by the chemical bactericide and the irradiation coupling of the present invention can realize effective sterilization of the paper aluminum plastic composite coiled material 2 only by using the low concentration chemical bactericide and the low intensity pulsed strong light irradiation treatment, and the sterilization effect is better than that of the control example which only uses the chemical bactericide and only uses the pulsed strong light irradiation treatment, which illustrates that the method for sterilizing the paper aluminum plastic composite coiled material 2 by the chemical bactericide coupling pulsed strong light sterilization can reduce the use of the chemical bactericide and reduce the intensity of the required pulsed strong light irradiation, and has the advantages of high sterilization efficiency, simple structure, difficult residue, and difficult occurrence of physicochemical denaturation of the paper aluminum plastic composite material by irradiation.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
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