Lenzing Aktiengesellschaft

Ulrich Moderl

Stefan Zikeli

Friedrich Ecker

Franz Schwenninger

A method for keeping and delivering a homogeneous suspension of shredded cellulose in an aqueous amine oxide is provided using a horizontal cylindrical vessel including a conveyor screw which is parallel to and partially coextensive with the stirring elements in the vessel.

Method for keeping and delivering a homogeneous cellulose suspension

The invention is concerned with a device for the continuous delivery of shredded materials exhibiting low flowability, particularly shredded cellulose materials, characterized in: (A) a receptacle for the shredded material to be delivered, said receptacle having an inlet and an outlet and whereto shredded material is delivered by means of an inlet screw, (B) a discharge arm provided in the receptacle and being arranged rotatably, which discharge arm transports the material present in the receptacle towards the outlet by means of rotation, (C) an outlet pit joined to the outlet receiving the material delivered to the outlet by the discharge arm, (D) an outlet screw protruding into the outlet pit and discharging the material delivered to the outlet pit (FIG. 1).

Device for the continuous delivery of materials with low flowability

The invention is concerned with a process for controlling a flowing suspension of shredded cellulose in a liquid, aqueous tertiary amine-oxide and is characterized by the combination of measures that (A) the suspension is introduced into a vessel having an inlet for the suspension, (B) the suspension introduced into the vessel is transported through the vessel and (C) the suspension transported throught the vessel is discharged from the vessel by means of an outlet, (D) the weight of the vessel being measured and the introduction and discharging of the suspension being controlled by means of deviations from a predetermined set value.

Growing community of inventors

Lenzing, Austria

Ulrich Moderl