| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an apparatus for crushing a waste gypsum board which prevents the adhesion of gypsum particles to paper pieces and can segregate these surely. SOLUTION: A waste gypsum board W is crushed into pieces by a crushing means A, and the pieces are separated into paper pieces and gypsum particles by a squashing means B. The squashing means B is constituted of squashing rollers 20, 21 in an upper stage and squashing rollers 22, 23 in a lower stage, the rollers 20, 21 which face each other are rotated at different speeds, respectively. The squashing surfaces of the squashing rollers have pyramidal unevenness arranged continuously in the circumferential direction and the rotary shaft direction.</p> |
