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Difference between revisions of "Sizing"
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→Process and technologies
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== Process and technologies == | == Process and technologies == | ||
Sizing technologies normally are devided into chipping or grinding technologies: | Sizing technologies normally are devided into chipping or grinding technologies: | ||
=== Chipping === | |||
: For chipping normally a chipper is used that consists of a sharp knife, that slice bigger parts into smaller chips. This is used e.g. for wood materials, straws and other feedstocks that can be cutted by a knife | : For chipping normally a chipper is used that consists of a sharp knife, that slice bigger parts into smaller chips. This is used e.g. for wood materials, straws and other feedstocks that can be cutted by a knife | ||
=== Grinding === | |||
: For chipping normally a grinder is used that cracks bigger parts into smaller particles. Grinding is achieved by shearing and/or friction and the grinding effect is achieved by multiple comminution in an increasingly narrowing grinding gap, which can usually be varied by axial displacement of a rotor or stator. | : For chipping normally a grinder is used that cracks bigger parts into smaller particles. Grinding is achieved by shearing and/or friction and the grinding effect is achieved by multiple comminution in an increasingly narrowing grinding gap, which can usually be varied by axial displacement of a rotor or stator. | ||