用于对废纸浆进行粗大杂质的筛选，可设置于高浓水力碎浆机之后，对从高浓水力碎浆机中出来的废纸浆进行粗筛选，除去大、重、杂物，减轻后面流程中筛选设备的负担，是大型纸机，高产量的首选设备。

Waste paper pulp used to carry out large selection of impurities. Can also be set up in high concentration hydraulic pulper, from the high concentration of water in the pulper out of waste pulp for coarse screening to remove large, heavy debris to reduce the flow back of the burden of screening equipment, large-scale paper machine And high output device of choice.