The invention relates to a method for simultaneously
smelting hydrolysis slag,
zinc kiln slag and
pyrite by using a
blast furnace, which belongs to the technical field of
metal smelting. The method comprises the following steps: a, taking a proper amount of
hydrolysis slag,
drying the
hydrolysis slag with hot air to meet the
moisture requirement of 6 to 14 percent, then briquetting the hydrolysis slag, and naturally
drying the
briquette for 10 to 16 hours for later use; b, taking 55 to 71 percent of
zinc kiln slag of which over 80 percent meets the initial
granularity requirement of 10 meshes, adding 9 to 20 percent of hydrolysis slag
briquette, 13 percent of
coke, 3 to 5 percent of quartzite and 4 to 7 percent of
pyrite into the
zinc kiln slag, naturally mixing the five materials and then
smelting the mixture in the
blast furnace; c, smelting the mixture in the
blast furnace, wherein the smelting temperature is between 600 and 1,350 DEG C, the smelting period is 40 to 80 minutes, the material column height is 1.5 to 1.8 meters and the volume of blast is 7,000 to 8,000 m<3> / h; and d, reclaiming the gold and sliver-containing
copper matte obtained after smelting to obtain a
raw material for smelting
copper, reclaiming zinc and lead valuable elements in the
soot to directly obtain raw materials for smelting zinc and lead, and directly using water granulated slag as a
raw material for producing
cement. The method has the advantages of simultaneously obtaining the
copper matte, the water granulated slag and the
soot serving as primary products through one process, realizing efficient separation and
zero emission of the valuable elements, along with
environmental protection.