A METHOD AND APPARATUS FOR MICROWAVE PROCESSING OF

专利名称：A METHOD AND APPARATUS FOR

MICROWAVE PROCESSING OF PLANARMATERIALS

发明人：THOMAS, DONALD, S.申请号：EP00902489申请日：20000111公开号：EP1151233A4公开日：20020424

摘要：A process and apparatus for removing moisture from a material without

substantially spoiling the material are described. The process comprises: a) subjecting thematerial to a controlled humidity environment, said environment being at a temperatureand partial vapour pressure of water which do not spoil the material, and, in which thepartial vapour pressure of water of said environment is substantially below saturation; b)irradiating at least one selected area of the material in the environment with an amountof microwave irradiation effective to increase the moisture at the surface of the materialwhereby the partial vapour pressure of water at the surface of the material is greaterthan the partial vapour pressure of water of the environment whereby moisture istransferred from the surface to the environment, wherein the amount of said microwaveirradiation and the selected area which is irradiated do not spoil the material; and c)maintaining (i) the temperature of the environment, and, (ii) the partial vapour pressure ofwater of said environment substantially below saturation, whereby the material is notspoiled during step (b); said amount of microwave irradiation being sufficient to

substantially maintain said vapour pressure at the surface of the material, until a required

amount of moisture has been removed from said material, without substantially reducingthe surface temperature of the material and being sufficient to maintain the surfacetemperature of the material at substantially the same temperature as the dry bulbtemperature of the environment.

申请人：MICROWAVE PROCESSING TECHNOLOGIES PTY LIMITED

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