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US 2025/0171956 A1Published application
Method and device for waste paper pulping
AssigneeVoith Patent GmbH
InventorWolfgang MANNES
Life of this patent
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Abstract
A method and a device for pulping fibrous materials is particularly suited for pulping waste paper. The method and the device are especially configured for the pulping of high pulp consistencies of more than 8%. The fibrous materials are added to a horizontally arranged pulper, being a drum or a trough, as a function of a fill level in the pulper. The fill level is measured in the pulper at least at two axially spaced-apart locations in the trough or the drum of the pulper.
Claims16
A method for pulping fibrous materials, the method comprising:
- providing a horizontally arranged pulper;
- supplying the fibrous materials to the pulper as a function of a fill level in the pulper;
- supplying water to the pulper and controlling a supply of the water as a function of a supply of the fibrous material;
- mixing the fibrous material with water in the pulper;
- and
- detecting the fill level in the pulper at at least two axially spaced-apart locations in the pulper.
3 more elements
A pulper, comprising:
- a horizontally arranged drum or horizontally arranged trough and a drive for driving the pulper;
- a controller for controlling a supply of water and of fibrous material to said horizontally arranged drum or said horizontally arranged trough;
- a sensor system for detecting a fill level at at least two axially spaced-apart locations of said horizontally arranged trough or said horizontally arranged drum for at least one of a control of the supply of fibrous material or a control of the supply of water.
Dependencies are inferred from the claim text.