SHIELD AND ELECTRON BEAM CONTAINER STERILIZATION EQUIPMENT

摘要

Provided is a shield used for container sterilization equipment that inserts, from the mouth of a container (B), an irradiation nozzle (En) having an exit window (Ew) on the distal end of the irradiation nozzle (En) and sterilizes the inner surface of the container (B), the irradiation nozzle (En) being surrounded by composite shields (Wi, Wo). A composite shield block (21) forming the composite shields (Wi, Wo) includes a magnetic shield (24) and an X-ray shield (25) that are disposed in the hollow section of a board-shaped shell (22) made of a corrosion resistant material, and an insulating layer (26) that is interposed between one surface of the board-shaped shell (22) and the magnetic shield (24), between the magnetic shield (24) and the X-ray shield (25), and between the X-ray shield (25) and one surface of the board-shaped shell (22).

主权项

1. A shield used for electron beam container sterilization equipment that sterilizes a container with electron beams emitted to the container,
the shield including a composite shield of a magnetic shield layer and an X-ray shield layer between a pair of corrosion resistant layers for protection against a corrosive atmosphere, the magnetic shield layer blocking magnetism while the X-ray shield layer blocks X-rays generated by reflection and diffraction of electron beams, the composite shield including an insulating layer interposed between one of the corrosion resistant layers and the magnetic shield layer, between the magnetic shield layer and the X-ray shield layer, and between the X-ray shield layer and the other corrosion resistant layer.