Diagonal honeycomb packing is used for various sedimentation and sand removal purposes. It has been widely used in water supply and drainage engineering in the past decade and has become a water treatment device. It has the advantages of wide applicability, high processing efficiency, and small footprint. Suitable for water inlet sand removal, general industrial and domestic water sedimentation, sewage sedimentation, oil separation, and tailings concentration treatment. It is suitable for both new construction projects and the renovation of existing old ponds, and can achieve good economic benefits.