(57) The invention relates to a method for crushing and reducing material by at least
one fine crushing step and at least one first reducing step, comprising; charging
a crushing chamber of a conical eccentric-drive crusher with raw material; rotating
an eccentric (8) of the conical eccentric-drive crusher to develop a centrifugal force
to obtain a crushing force between an inner cone (3), to a shaft (4) to which the
eccentric (8) is rotary mounted, and an outer cone (2) of the conical eccentric-drive
crusher; performing, in an integrated manner, under the influence of said crushing
force generated by said centrifugal force, said crushing step and said reducing step
in said conical eccentric-drive crusher; crushing and reducing the raw material; and
discharging reduced material from said conical eccentric-drive crusher. The invention
also relates to a system for performing the method and a use of a conical eccentric-drive
crusher.
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