Harden's paper mill waste recycling disposal system is primarily utilized for managing pulper rope and light reject generated during the paper mill production process. It features a large-scale double shaft shredder as the central equipment, programmable to accommodate varying material properties. Through a sequence of conveying, shredding, dispersing, magnetic separation, and screening, the system effectively separates metal and other mixtures, yielding solid recovered fuel (SRF) and facilitating the recycling of paper mill waste.