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US 7,124,970 B2Granted
Method and apparatus for processing various materials
AssigneeConenor Oy
InventorKari Kirjavainen
Life of this patent
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Abstract
The invention relates to a method and a an apparatus for processing various materials, the apparatus including at least two annular feed gaps placed one within the other. The beginning of each feed gap is provided with a grinding section (5), which is followed in the apparatus by a mixing section (10). The materials are processed in the grinding section (5), whereafter they are mixed in the mixing section (10), and the mixture is extruded into a product.
Claims8
A method for processing various materials, the method comprising the steps of:
- providing an apparatus comprising a grinding section and a mixing section so that at least in the grinding section the apparatus comprises at least two annular feed gaps placed one within the other defining a first feed gap and a second feed gap,
- feeding at least two different materials into the feed gaps so that a non-melting material is fed into the first feed gap and a material that melts during processing is fed into the second feed gap,
- grinding the non-melting material in the first feed gap and, simultaneously during the grinding, dehydrating the non-melting material in the first feed gap,
- melting the material during processing in the second feed gap,
- mixing the ground material with the melted material in the mixing section of the apparatus after the grinding and the melting, and
- extruding the mixture of the materials into a product, wherein the non-melting material is ground and dehydrated in the same apparatus in which the materials are mixed.
3 more elements
Dependencies are inferred from the claim text.