Comminuting wood pulp sheeting
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United States of America Patent
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Dec 27, 1994
Grant Date -
N/A
app pub date -
May 24, 1993
filing date -
May 24, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of creating a comminuted feedstock of wood pulp for use in a processing plant which includes the steps of mounting a plurality of rolls of wood pulp sheet material of a first range of properties in a first roll stand, drawing sheet material off each roll in the first roll stand and laying the sheet materials one on the other to create a first pluri-layer web, withdrawing the first pluri-layer web from the first roll stand and leading it to a cutting area of a shredding mill, acting on the first pluri-layer web in the cutting area with rotating hooked disc cutters to tear platelets from the first pluri-layer web and to pass the torn platelets to an outlet of the shredding mill, pneumatically conveying the torn platelets away from the outlet using a fan with a bladed member rotating in a fan casing, and beating the torn platelets with the bladed member as they are conveyed through the fan casing to separate the torn platelets into pieces torn from the individual layers making up the first pluri-layer web.
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