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1. CA2733371 - METHOD FOR PRODUCING PELLETS FROM LARGE PIECES OF RENEWABLE FIBROUS RAW MATERIALS

Anmerkung: Text basiert auf automatischer optischer Zeichenerkennung (OCR). Verwenden Sie bitte aus rechtlichen Gründen die PDF-Version.

[ EN ]
Claims
1. A method for producing pellets from pieces of renewable fibrous raw materials, comprising the steps of: coarsely precomminuting the renewable fibrous raw material in hackers or choppers; comminuting the renewable fibrous raw material in a first matrix press; drying and subsequently processing the renewable fibrous raw material into pellets in a matrix press, wherein the material is comminuted in the first matrix press with a water content of at least 15 to 20 percent by weight in the case of straw and of at least 40 to 50 percent by weight in the case of wood and other materials.
2. The method as claimed in claim 1, wherein the renewable fibrous raw materials are selected from the group consisting of: wood, straw and energy crops.
3. The method as claimed in any one of claims 1 or 2, wherein the first matrix press is a flat matrix press.
4. The method as claimed in claim 3, wherein the first matrix press comprises cylindrical pan-grinding rollers.
5. The method as claimed in any one of claims 3 or 4, wherein the first matrix press comprises driven pangrinding rollers.
6. The method as claimed in any one of claims 1 to 5, wherein the material is further comminuted in a hammer mill after drying and before being processed into pellets.
7. The method as claimed in any one of claims 1 to 6, wherein a flat matrix press is used as the matrix press in which the material is processed into pellets.
8. The method as claimed in any one of claims 1 to 6, wherein a ring matrix press is used as the matrix press in which the material is processed into pellets.