Electron beam irradiation disinfection apparatus for film material

Abstract

The invention discloses an electron beam irradiation disinfection apparatus for film material. On the inlet (10A) and the outlet (10B) of the film material disposed in an irradiation treatment chamber (10) in pressure reduced state, pressure reduction holding and adjusting devices (21), (22) are mounted by sealing mode; each of the pressure reduction holding and adjusting devices (21), (22) is equipped with a pair of clamping frame (24) in the frame body (23) in order to press and clamp the film material (1); on side of the clamping frame (24) is set as fixed side; the other side is set as movable side which can move back and forth in the frame body (23) by a pressing moving apparatus; the clamping frame (24) is composed of a plurality of continuous sub-frames (25) and small caliber rollers (26) respectively disposed in every sub-frame. The invention can hold the pressure reduced state well in the irradiation treatment chamber, and can be miniaturized for being made economically.

Description

technical field [0001] The present invention relates to an electron beam irradiation sterilization device for thin film materials, in particular to provide suitable electron beam irradiation sterilization for thin film materials for irradiation treatment chambers in a decompressed environment during the transfer of thin film materials. bacteria device. Background technique [0002] In general, film materials used for filling paper packages of liquid foods and resin film bags for instant foods need to be sterilized during the period from the supply device to the molding process, so that they are free from adhering impurities. The aseptic state of the bacteria is supplied to the subsequent process. [0003] In general, if chemical agents are used for sterilization of film materials, a lot of equipment is required, and the chemical agents may remain on the film materials. Therefore, there are various problems that the chemical agents remaining on the film materials must be com...

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Problems solved by technology

[0009] But, if the electron beam irradiation sterilization device of the film material of patent document 2, if the input side and the output side of the irradiation treatment chamber are provided with the preparation chamber in series, each preparation chamber adopts the labyrinth sealing structure that diaphragm and gap are arranged in multiple stages, then the structure Complicated, large in appearance, not economical to manufacture

[0010] In addition, when satisfying the labyrinth seal structure in which the processing object passes through without obstacles and maintains a depressurized state, it is necessary to work hard on the adjustment of each gap, and the composition of the driving part including the gap rollers for rapid transmission is complicated, and there is a problem that the device cannot be easily manufactured. shortcoming

[0011] Moreover, in the multi-stage labyrinth seal structure using the diaphragm and gap rollers, it is not easy to configure the film material to pass through the input side preparation room, pass through the irradiation treatment room and reach the output side preparation room during the operation preparation of the sterilization process. It can be done locally, and it takes a lot of time, which has the disadvantage of using it

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