Process and apparatus for producing a molded fiber article
AssigneeKurtz GmbH
InventorsUwe Rothaug, Constantin Kemmer
Life of this patent
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Abstract
The invention relates to a process and an apparatus for producing a molded fiber article. The process comprises the steps of —dissolving fibrous materials in water to form a fibrous material suspension in a pulper, —removing moisture from the fibrous material suspension by pressing to form a molded fiber article in a mold and/or —drying the molded fiber article by supplying heat, —demolding the molded fiber article from the mold. The process is characterized by the feature whereby, in mold drying of the molded fiber article in the mold, a moisture content of the molded fiber article of not more than 10% by weight or not more than 7.5% by weight or not more than 5% by weight is achieved.
Claims26
Process for producing a molded fiber article comprising the steps
- Dissolving of fibrous materials in water to form a fibrous material suspension in a pulper,
- Dehumidifying of the fibrous material suspension by pressing to form a molded fiber article in a mold and/or
- Drying the molded fiber article by supplying heat to the mold and Demolding of the molded fiber article from the mold,
- in which
- during a mold drying of the molded fiber article, the molded fiber article is subjected to electromagnetic waves in such a way that it dries in the mold until a moisture content of the molded fiber article of not more than 10% by weight or not more than 7.5% by weight or not more than 5% by weight is achieved,
- wherein
- the molded fiber article is dried in a drying station and demolded from the mold in a demolding station, wherein the pulper, the drying station and the demolding station form workstations.
(canceled)
Apparatus for producing a molded fiber article, comprising
- a pulper for dissolving fibrous materials in water to form a fibrous material suspension,
- a mold comprising two mold halves for dehumidifying the fibrous material suspension by pressing to form a molded fiber article,
- a drying station for drying the molded fiber article while supplying heat in the mold, and
- a demolding station for demolding the molded fiber article from the mold,
- in which,
- the drying station comprises a wave generator for electromagnetic waves and a control device, which are designed in such a way that the molded fiber article is dried by means of the electromagnetic waves to a moisture content of not more than 10% by weight or not more than 7.5% by weight or not more than 5% by weight,
- wherein
- a transport device is provided, by means of which the mold can be conveyed from the pulper to the drying station and to the demolding station.
(canceled)
Dependencies are inferred from the claim text.