Process for the treatment of material-gas mixtures

Details Process for the treatment of material-gas mixtures Process for the treatment of material-gas mixtures

B - Operations, Transporting

01

D

183/112

B01D 45/12 (2006.01) B01D 19/00 (2006.01) D21D 5/26 (2006.01)

Patent

CA 2008916

ABSTRACT The invention relates to processes for the treatment of in particular medium and highly consistent material-gas mixtures to be pumped, preferably gas-containing, in particulatr air-containing fibrous material suspensions, a separation of the gas being effected prior to the pumping operation. The invention is mainly characterized in that the material-gas mixture, preferably the gas-containing fibrous material suspension, is subjected in a separate container separate from the pump housing for the separate gas separation, in particular air separation, preceding the pumping operation, to a conveniently high-speed rotation of in particular between 1,200 and 3,400 rpm, preferably of about 3,000 rpm, while at least in operation, gas, in particular air, is sucked off or a vacuum is generated approximately in the center of the rotating motion of the material-gas mixture. The invention further relates to plants and devices e.g. suitable for carrying out these processes. Conveniently, separate housings are provided for the degassing device and the pump. (Fig. 1).

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