SCREENING DEVICE AND TREATMENT SYSTEM

This screening device is provided with a screening surface to which a material to be treated is supplied, and comprises: linear first and second wire rods having central axes arranged in parallel with each other; a first locking part for movably locking respective one ends of the first and second wire rods; a second locking part for movably locking the respective other ends of the first and second wire rods; and a control device for controlling a first spacing that is a spacing between the respective one ends. The control device can change the first spacing to be larger than a second spacing that is a spacing between the respective other ends. 本发明的筛装置，其具有：具备被供给被处理物的筛面且被配置成彼此的中心轴保持平行的直线状的第一线材及第二线材；将所述第一线材及所述第二线材的各自的一端可移动地进行卡止的第一卡止部；将所述第一线材及所述第二线材的各自的另一端可移动地进行卡止的第二卡止部；以及控制所述各自的一端的间隔即第一间隔的控制装置，而且所述控制装置可将所述第一间隔改变成大于所述各自的另一端的间隔即第二间隔。