Method and apparatus for heating of bulk materials

Details Method and apparatus for heating of bulk materials Method and apparatus for heating of bulk materials

F - Mech Eng,Light,Heat,Weapons

28

D

F28D 11/06 (2006.01) A23G 1/18 (2006.01) A23G 3/02 (2006.01) A23G 9/04 (2006.01) A23L 3/365 (2006.01) F24H 1/14 (2006.01)

Patent

CA 2128914

Heat is applied to a solid or semi-solid material in a cylindrical container in such a way that a precise, predetermined amount of heat is transferred to a horizontal layer of the material until it softens sufficiently to allow the heating element to sink into the material where it will heat the next layer. The container is rotated about a vertical axis, and a horizontally-oriented heating element is lowered into contact with the material to apply heat to a horizontal layer. The heating element is lowered through the material in a controlled manner to heat progressively lower layers within the container, until the whole container has been heated. The heating element may be heated by pumping hot water therethrough, or by other means. A container of hot liquid may be cooled in a similar fashion, by gradually raising a cooling element from the bottom of the container.

Cette invention concerne un procédé de réchauffage de matière solide ou semi-solide contenue dans un récipient cylindrique selon lequel une quantité prédéterminée de chaleur est transmise à une couche horizontale de la matière et la fait ramollir suffisamment pour que l'élément chauffant puisse s'enfoncer et réchauffer la couche sous-jacente. Le récipient tourne autour d'un axe vertical, et un élément chauffant dont la dimension principale est dans le plan horizontal descend jusqu'à la matière à réchauffer. L'élément chauffant est enfoncé progressivement dans la matière de manière à la réchauffer par couches horizontales successives jusqu'au fond du récipient. La chaleur dans l'élément chauffant peut être produite par circulation d'eau chaude ou autrement. Ce procédé peut aussi être utilisé pour refroidir un récipient de liquide chaud. Il s'agirait alors de faire remonter un élément refroidissant à partir du fond du récipient.

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