DUBHE's rotary drum screen achieves efficient solid-liquid separation, operates continuously and without clogging, maximizing throughput while minimizing energy consumption and downtime. It is primarily used for municipal wastewater pretreatment and industrial wastewater solid-liquid separation, and is also suitable for aquaculture tailwater filtration, food processing impurity screening, mining wastewater grading, and dyeing wastewater pretreatment. Furthermore, it can be used for river dredging and preliminary solid waste separation in environmental engineering projects, making it a highly efficient and convenient screening and filtration device.