Vanadium titanium magnetite ore composition characteristics
Mineral ore mainly contain vanadium magnetite, which Vanadium to isomorphous state exist, minerals amount of about 16%;Titanium-containing minerals to ilmenite content of about 10%.Magnetite and ilmenite predominantly to the gap structure, the formation of self-shaped crystal with pyrite, pyroxene,hornblende crystals surrounded and sponge iron meteorite structure.Magnetite disseminated particle size is generally 0.3-0.6mm,ilmenite dissemination size 0.2-0.5mm, and part of the micro-fine (0.02-0.005mm) was the star point disseminated or included in pyroxene gangue.
Vanadium titanium magnetite dressing indicators
Ore over a period of grinding to -200 mesh and 40 to 50% crude magnetic separator, coarse concentrate grade: 49.00%, the tailing was 45.67%, coarse concentrate regrinding again -200 mesh 60 to 65% of the cyclonesecond fine selection is graded, fine tailings scavenging, scavenger concentrate return fine selection, the final concentrate grade of 54.24%, 72.26% recovery of conveying to concentrate positions filtered by the filter;Scavenger and rougher mineral tailings eventually.The use of iron ore tailings fine selection of titanium minerals, the tailings was concentrated by the sand pump transported to the tailings dam, tailings grade of 17.33%.
Vanadium titanium magnetite dressing process
Crushing and grinding's power consumption in the concentrator production, steel consumption, production costs and infrastructure investment are the largest.Therefore, saving broken grinding steel consumption, to reduce the amount of production costs and investment in the processing plant has economic significance.
Vanadium titanium magnetite crushing and grinding processes
Comminution process for determining reasonable, considering the nature of the vanadium-titanium magnetite, the principle of using advanced and reliable technology, the large efficient new equipment, infrastructure investment and economic good effect, on the basis of previous phases of the design, with aThe three sections of a closed-circuit crushing process.According to dissemination size of the ore, "segmented grinding and beneficiation sorting process can reduce the amount of subsequent job processing to reduce the load of the equipment.
"coarse grinding--cyclone classification--coarse magnetic separation-- regrinding--Sec cyclone grading--fine selection 1--fine election 2--scavenging"process characteristics:
1,Rougher tailing to reduce the load on the subsequent operation, the design tailing rate of 45.67%;
2, the effects of cyclone classification, high efficiency, easy maintenance;
3,good sorting indicators,concentrate grade (54.24%), the recovery rate of 72.26%.
4, to ensure that the concentrate grade and recovery, and good economic benefits.