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Application of BF-T Flotation Machine in Reverse Flotation of Hematite Ore

Author: TianJiaGuo
Tutor: HanYueXinï¼›ZhangMing
School: Northeastern University
Course: Mining Engineering
Keywords: Poor hematite Anti - flotation process Flotation machine
CLC: TD951
Type: Master's thesis
Year: 2008
Downloads: 90
Quote: 0
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Abstract


Anshan Iron and Steel Group, Anshan Mining Company Donganshan sintering plant put into operation in 1958, the beneficiation process has been a two-stage continuous grinding a single the basic positive flotation process Donganshan iron ore, technical and economic indicators of high concentrate grade has been hovering at 60 percent, to adapt to the current market demand, Anshan Mining Company in the years to mention the production of iron and reduce silicon based on practice using advanced two-stage continuous grinding ore regrinding, re-election - magnetic - anion reverse flotation process for the East Anshan Sintering Plant processing workshop technological innovation, transformation concentrate grade increased to 64.5%, and to achieve a breakthrough in the the sintering plant beneficiation Donganshan indicators. Commissioning of new technology, after more than a year of production debugging and inspection found several problems exist in the process, including flotation indicators instability, volatility is an important technical problems often occur. A reverse flotation process commissioning early in 2002, the the four flotation beneficiation workshop series BF-1 flotation machine JJF flotation machine combined unit. BF-1-type flotation machine used to suck the slurry tank, JJF flotation machine for DC slot. Testing process JJF flotation machine impeller position, small diameter, large density mineral Shen slot prone phenomenon, caused by lower pulp density of the flotation cell; addition JJF flotation machine leakage phenomenon is more serious, caused by the the slurry liquid level fluctuations, flotation index frequent fluctuations. Problems in the debugging process, Anshan Mining Company in 2003 decided to transform the flotation machine, flotation machine to replace all the BF series flotation machine. This machine is a specialized research to improve anti-flotation process characteristics for iron ore efficient sorting equipment, which uses the advanced technology of the self-priming flotation machines. Drawing on the advantages of similar products at home and abroad, for iron ore special anti-flotation process conditions to optimize the design. The transformation of the East Anshan Sintering Plant beneficiation plant flotation machine is divided into four stages, the first stage is to transform the southern half 3 \BF-T-type flotation machine, better process indicators, the second phase of the transformation of the flotation machine installation, the # 3 flotation series demolition of BF-1-type flotation machine 4 # floating Select Series, replaces the original JJF flotation machine. third stage of the flotation machine transformation series flotation machine flotation northern half # 2 is to replace all the BF-T-type flotation machine, and 2 # the flotation Series process indicators longitudinal comparison; transformation of the fourth stage of the flotation machine # 2 flotation series demolition BF-1-type flotation machine installation to a \type flotation machine, so that will complete the transformation of the flotation machine processing workshop. After transformation of flotation machines, equipment running smoothly, the slurry liquid is easy to adjust, flotation index has been greatly enhanced. The statistical indicators show that the flotation concentrate grade increased 0.5%, 0.5% tailings grade. In accordance with the ball mill station when the processing power of 55 tons / operating rate of 92% to mix magnetic fine yield of 35%, processing workshop in January 2003 to April production targets concentrate grade of 65.38%, the tailings grade 20.16%; concentrate grade of 65.88% in July 2004 to November production targets tailings grade of 19.66% the mixed magnetic fine bit of 41.02%, a year iron ore production of 1,321 tons, according to a grade of 65% iron ore concentrate price of 570 yuan / ton, concentrate grade increased by 1 percentage point, the price increased by 10 yuan, 4.33 million yuan year-on-year increase in the effective. Flotation machine transform to solve the the flotation beneficiation workshop new process indicators unstable critical technology issues, at the same time, to create a good economic and social benefits.

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CLC: > Industrial Technology > Mining Engineering > Beneficiation > Metallic Ore Dressing > Black Metallic Ore Dressing
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