For many years, the thickening equipment commonly used in the field of tailings filling mainly includes vertical sand silos and high-efficiency deep cone thickeners, but the vertical sand silos cannot achieve continuous and stable discharge and the "press harrow" accident of the high-efficiency deep cone thickeners restricts Improved tailings filling efficiency.

In cooperation with Shandong Gold Filling Engineering Laboratory, Shanjin Heavy Industry has successfully developed a series of intelligent tailing filling equipment such as non-powered tailings thickeners of all Shanjin series, which effectively solves the problem of high-efficiency thickening and uniform slurry filling of fine-grained tailings. Filling technical problems such as high-quality mixing have promoted the implementation of the fine-grained tailings filling process, and realized the high-concentration filling of fine-grained tailings and the dehydration and reuse of coarse-grained tailings, subverting the traditional filling method of mines. Zero discharge of mine tailings has been achieved and the standard for green mines without tailings has been achieved.

The successful development of Shanjin Heavy Industry's tailings intelligent filling equipment has opened up a new path for the comprehensive utilization of tailings, provided technical and equipment support for the construction of tailings-free mines, and also escorted the construction of Shandong Gold and the country's green mines.