摘要:
The invention relates to a method and installation for heating and packing a product in packaging and to the packaging used for same. According to the invention, a consumable product (14), in particular a food product, is introduced into a packaging container (10) and heated therein. Once the product has been introduced into the packaging, the packaging is partially closed, such that at least one zone remains temporarily unwelded (17) between two walls of the packaging (10A, 10B). The product is subsequently heated in the partially-closed packaging and said packaging is then closed completely by welding the walls in the aforementioned zone (17).
摘要:
The invention relates to the heat treatment of a consumable product contained in a pouch (10). The product is introduced into a pouch, which is then partially sealed, maintaining an initially unsealed zone forming a vent, and then moved along to a heating station, which pouch is, after heating, completely closed. While moving the pouch along, the latter is held in place such that the initially unsealed zone occupies, as the pouch passes through a sealing station, a given position relative to a sealing tool (120) present in this station, and additional sealing of the zone is performed when the latter occupies the given position.
摘要:
The invention concerns an installation comprising a microwave heating station (14) having means for applying microwaves and a support (10) adapted to support the containers (12) in the heating station. The support (10) include at least one area for containers (20) delimited by the surface (10A) of the support and by a metal band (24A, 24b) fixed on the support. The area (20) is designed to support a container (12) whereof the base rests on the support surface (10A) and whereof the side wall (12b) is enclosed by the band. The support can be a conveyor bringing the containers into the heating station.
摘要:
The tray (1, 2) has at least one deformable wall (2). The method consists in heating the product (3) contained in the tray by allowing the vapour produced by heating to escape through an opening (4A) of the package. The product (3) is heated by bringing it to a desired temperature, the temperature is maintained by allowing the vapour to escape, a gaseous fluid (F) is introduced into the package at the end of the temperature maintaining step and the package is hermetically sealed.
摘要:
The invention concerns a container designed to contain a product to be heated by applying microwaves, the container having a side wall (10) and an end wall (12) formed by a base or a lid and means (10A) for limiting penetration of microwaves through the side wall (10), relative to microwave penetration through a central region of the end wall (12). Advantageously, said container further comprises means (12A) for concentrating the microwaves in a central region of the end wall (12), said means consisting of an added thickness made of dielectric material whereof the dielectric constant is not less than 1.5, preferably more than 2.
摘要:
The invention concerns a waveguide generator device for energizing a cavity with microwaves coming from an emitter (18) for generating in the waveguide (16) an electromagnetic field of microwaves having a wavelength lambda g. The device comprises a site for the emitter (18) defining a plane of the emitter (P0) and two wave reflecting walls (28, 30) in the proximity of which are respectively located two main outlets for the microwaves (32, 34). The two wave reflecting walls (28, 30) are spaced apart from the emitter plane (P0) by a distance substantially equal to 0.2. lambda g +k. lambda g/2 and 0.3 lambda g + p. lambda g/2, wherein k and p are integers. The device comprises an adjusting member (36) arranged at a distance equal to n. lambda g/2, n being an integer, from the plane of the emitter (P0).
摘要:
The tray (1, 2) has at least one deformable wall (2). The method consists in heating the product (3) contained in the tray by allowing the vapour produced by heating to escape through an opening (4A) of the package. The product (3) is heated by bringing it to a desired temperature, the temperature is maintained by allowing the vapour to escape, a gaseous fluid (F) is introduced into the package at the end of the temperature maintaining step and the package is hermetically sealed.