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ARRANGEMENT FOR THE TREATMENT OF CELLULOSE PULP IN A WASHING APPARATUS ARRANGED WITH DISPLACED PERIPHERAL VALVE SEALS
ARRANGEMENT FOR THE TREATMENT OF CELLULOSE PULP IN A WASHING APPARATUS ARRANGED WITH DISPLACED PERIPHERAL VALVE SEALS
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机译:布置有移位的周边瓣膜密封的清洗设备中纤维素浆的处理
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摘要
A washing arrangement for washing and dewatering cellulose pulp, comprising a rotary drum (1) with a plurality of external compartments (2) on the drum for the pulp to be washed, which compartments are defined by axial compartment walls (3) distributed along the circumference of the drum, a stationary cylindric casing (8) enclosing the drum, whereby a ring-shaped space is defined between the casing and the drum and where the ring-shaped space by means of longitudinal seals in the axial direction of the drum is divided into a forming zone for forming the pulp in the compartments of the drum, at least one washing zone for washing the pulp at overpressure, and a discharge zone for feeding out the washed pulp, and where the filtrates from different washing stages are collected in a peripheral valve located at the end wall of the drum, where the filtrate stages are separated by seals in the valve, where at least some of the valve seals in the peripheral valve are displaced in relation to the corresponding longitudinal seal, seen in the rotation direction of the drum.
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