CRUSHER

PROBLEM TO BE SOLVED: To improve the efficiency of a crusher having a pair of rotary shafts in treating of a target object.SOLUTION: A crusher comprises: a pair of rotary shafts 1, 2 arranged in parallel with each other; a plurality of rotary blades 3 attached with gaps in the respective rotary blades 1, 2 in the axial direction, where the rotary blades 3 attached to one rotary shaft 1 and the rotary blades 3 attached to the other rotary shaft 2 are attached with rotation loci L1, L2 overlapping as viewed from the axial direction of the rotary shaft; and a screen 20 that receives crushing objects outside the rotation locus L1 of the plurality of rotary blades 3 attached to the one rotary shaft 1 to drop crushing objects of a predetermined size or less. At least a part of the end parts in the arrangement direction of a pair of rotary shafts 1, 2 of the screen 20 is arranged on the inner periphery side of the rotation locus L2 of the rotary blades 3 attached to the other rotary shaft 2.SELECTED DRAWING: Figure 3 【課題】一対の回転軸を有する破砕機において、被処理物の処理効率を向上させる。【解決手段】互いに平行に配置された一対の回転軸１，２と、各々の回転軸１，２に軸方向に間隔をあけて取り付けられた複数の回転刃３であって、一方の回転軸１に取り付けられた回転刃３と他方の回転軸２に取り付けられた回転刃３とが、回転軸の軸方向から見て回転軌跡Ｌ１，Ｌ２を一部重ねて取り付けられた複数の回転刃３と、一方の回転軸１に取り付けられた複数の回転刃３の回転軌跡Ｌ１の外側で破砕物を受けて所定の大きさ以下の破砕物を落下させるスクリーン２０と、を備え、スクリーン２０の一対の回転軸１，２の配列方向の端部の少なくとも一部は、他方の回転軸２に取り付けられた回転刃３の回転軌跡Ｌ２よりも内周側に配置されている破砕機。【選択図】図３