Device for liquid-treating a running fiber web, including an arc-shaped duct
AssigneeSunds Aktiebolag
InventorsBernt Johan Ljung, Karl-Erik Lennart Svensson
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Abstract
A device for carrying out liquid treatment of a fiber pulp suspension to form a running fiber web includes an arc-shaped duct having various portions. The first portion has a converging cross-section for compressing the fiber pulp suspension to form the fiber web. The second portion has a diverging cross-section for the expansion of the fiber web and includes a liquid-treatment zone. The third portion has a converging cross-section for compressing the fiber web. Along its length, the duct is defined inwardly by a rotary cylindrical screen member and radially outwardly by a stationary wall member.
Claims17
A device for carrying out liquid treatment of a fiber pulp suspension to form a running fiber web, said device comprising an arc-shaped duct, said duct including a first duct portion having a converging cross-section for compressing the fiber pulp suspension to form the fiber web, a second duct portion having diverging cross-section for the expansion of the fiber web, said second portion including a supply line for introducing treatment liquid, and a third duct portion having a converging cross-section for compressing the fiber web, said duct being defined inwardly by a rotary cylindrical screen member and radially outwardly by a stationary wall member.
Dependencies are inferred from the claim text.