Process of reducing wet pressure drop in a limiting orifice...

Details Process of reducing wet pressure drop in a limiting orifice... Process of reducing wet pressure drop in a limiting orifice...

D - Textiles, Paper

21

F

D21F 5/18 (2006.01) D21F 11/14 (2006.01)

Patent

CA 2305651

An apparatus for drying a cellulosic fibrous structure. The apparatus comprises a micropore medium having pores therethrough. The pores are the limiting orifice in the air flow used in the drying process. The micropore medium has a relatively low pressure drop therethrough. This relatively low pressure drop advantageously reduces the energy costs used in drying, and/or allows for greater drying to be obtained at constant energy costs.

Cette invention se rapporte à un appareil de séchage de structures fibreuses cellulosiques. Cet appareil comprend un milieu microporeux traversé par des pores. Les pores constituent les orifices limitant le passage du flux d'air utilisé dans l'opération de séchage. Le milieu microporeux se caractérise par une chute de pression relativement faible de l'air le traversant. Cette chute de pression relativement faible réduit avantageusement les coûts énergétiques de l'opération de séchage et/ou elle permet d'obtenir une capacité de séchage plus grande à des coûts énergétiques constants.

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