Aiming at high design requirement and great technical difficulties,construction methods such as blasting control,excavating and mucking in the tunnel and grout injection in the holes with anchor have been improved on so as to advance construction efficiency,quicken construction schedule and increase economical benefits finally.

Introduction is given to experiment on changing reaction zone lining into Mg Cr Al bricks in volatilization kiln for treating zinc leaching residue and practice for achieving domestic leads in same industry after continuous operation for 244 days by using this kind of brick lined volatilization kiln.

The effecting factors of electrolytic Zinc leaching residue to the Kiln's service life during the processing of Volatility kiln were introduced.

This paper analyzing the source and distribution of Sulfur elementary of Zinc leaching residue in volatilization kiln, combine with the practice condition, and contrast analyzing the actuality desulphurization techniques in home and out.