Since the oxide or pyrite is activated copper ions, and thus the selective separation of chalcopyrite pyrite is often difficult, especially for open-pit mining ore difficult. In the copper- molybdenum mixed flotation, in order to inhibit oxidized and activated pyrite, an appropriate amount of sodium sulfide is usually added to reduce the oxidized surface of the pyrite and desorb excess copper ions on the surface of the pyrite. Long-term slurry aeration can reduce the activity of pyrite during copper-molybdenum flotation, and can separate pyrite from gypsum . Most of the fine muds obtained from the separation of coarse sand and fine mud are oxidized pyrite and acoustic fine mud. Different pharmaceutical systems can be used for the separation of coarse sand and fine mud.
Separating excess pyrite from chalcopyrite and molybdenum ore, first concentrating the slurry containing pyrite and chalcopyrite (micro molybdenite), adding lime to the high-concentration pulp to keep the pH above 12 Stir for 1.5 to 2.0 hours to obtain good separation between pyrite and chalcopyrite. If necessary, it is also possible to supplement inhibitors that strongly inhibit pyrite, such as cyanide.
First with a strong collector performance collector, pyrite, chalcopyrite and molybdenite with the collector, followed by re-grinding, stirring for long lime separated pyrite chalcopyrite approach is also effective of.Horizontal Directional Drilling Rig
Horizontal Directional Drilling rigs are widely used to cross the railway, road, building, river, downtown area, other construction limited area, agriculture crops, for construction renewing water supplying, coal gas, electronic, telecommunication, natural gas and so on.
Horizontal Directional Drilling Rig, Trenchless Drill Machine with Closed Cabin and AC.
Horizontal Directional Drilling Rig for Pipelaying
Sanyi XCMG Underground Trenchless Horizontal Directional Drilling HDD Rig for Sale/Dealer/Manufacturer
If the land hardness is normal,and just use 200mm,300mm back reamer,the one-gun-distance is 150 meter and it's very easily.
If the land harness is normal,and the back reamer size reach 400mm,the one-gun-distance can be 150 meter but the operator need to pay high attention to the rig to see all the digital such as the rotation pressure and other.
If the back reamer size reach 500mm,600mm,the one-gun-distance can only be 90 meter.
Remark:One-gun-distance means the distance of drill bit go from one side and come out from the other size.Please see below explanation.
HDD Drilling Machine,HDD Drilling Rig,Horizontal Directional Drilling Rig
Henan YK Prospecting Machinery Co., Ltd , https://www.yikyuirig.com