A refiner and method for fasten or release of refiner plates

摘要

A refiner for crushing materials is formed of a main portion, a cover openably provided to the main portion, a partition of the main portion, a rotating shaft provided in the main portion, a circular plate provided to the rotating shaft, annular rotating discs provided to both sides of the circular plate, and fixed discs provided to the cover and the partition, respectively. The refiner also includes a cylinder for holding the rotating shaft, and a feed screw shaft for moving the rotating shaft along an axis thereof. When the cover is opened and the circular plate is moved, the fixed discs and the rotating discs can be easily and quickly attached or detached.