The TQSF**0 grading and gravity destoner can
remove the metal, stone and light impurity from the continuous
flowed materials, also grading the materials into two grades (light
and heavy material). This machine form from two sieve-layers, the
upper layer is used for separating the light and heavy materials;
bottom layer is used for removing the glass block, stone and piece
of metal from the mainstream of heavy materials.
