Apparatus for crushing or grinding of fibrous material, in particular drum refiner

Abstract From the Canadian patent

The invention relates to an apparatus for the crushing or grinding of fibrous material in particular fibrous material wet or mixed with water preferably chips in particular to drum refiners with an enginedriven in particular horizontally supported rotor having at least two crushing or grinding elements or grinding plates whose surfaces advantageously rotation surfaces in particular frustoconical surfaces are inclined to the in particular horizontal rotor axis or extend approximately normally thereto and have diameters increasing away from the at least one material feed directed approximately radially to the rotor axis or approximnately tangentially to the rotor or stator as well opposed …