Flash Smelting Furnace
Flash smelting technology is one of the most advanced technologies of copper smelting. The refractories used for flash smelting furnace have to meet some rigorous technique requirements. Hitech Material provide a full set of solutions copper flash smelting.
Flash smelting technology is one of the most advanced technologies of copper smelting, of which main body is comprised of reaction tower, settler, flue channel.
With vigorous chemical reaction, fast speed, high thermal strength and complicated furnace atmosphere, the refractories used for flash smelting furnace have to meet some rigorous technique requirements. Based on our long-term experience, Hitech Material provide a full set of solutions copper flash smelting.
1. Reaction tower
Reaction tower is the most crucial parts in the flash smelting furnace, of which is mainly in lined with magnesia chrome bricks, in consideration of erosion-corrosion from gas-solid two-phase and high temperature&high speed melts.
The working environment for settler is very poor, end wall and side wall are strongly influenced by erosion-corrosion of high temperature gas and melts.
The furnace wall that in the slag line area is fastest damaged part, in virtue of erosion caused by level fluctuations. Magnesite-chrome refractories used in this part should have characters of high matte penetration resistance and high slag resistance.
Considering the sidewall and roof are confronted with erosion-corrosion of high temperature flue gas that entrained slag and smoke, as well as bottom is the load bearing part and subjected to high temperature and chemical attack, with the exception of rebonded magnesia chrome bricks, horizontal copper jacket should be set additional in these parts. Besides that, inclined copper jacket can also be arranged outside the refractory bricks near the slag line.
Settler roof is also the part that faces serious erosion by gas flow. In the axial direction, water-cooled copper pipe with fins should be set, outer packing refractory castables.
3. Flue channel
Flue channel is subjected to the erosion-corrosion of high temperature flue gas that entrained slag and smoke, so which is often built by direct bonded magnesia chrome bricks.