Analysis of the Iron Ore Concentrate

 The iron ore is an important raw material for steel production enterprises, the natural ore (iron ore) iron elected after crushing, grinding, magnetic separation, flotation these re-election program,and gradually get the containing iron or iron compounds for the purpose of economic use .
The degree dissociation analysis of iron ore concentrate, iron minerals and gangue minerals monomer  ,   through the particle size of the sieve analysis,  Iron ore concentrate were observed at all levels of granularity, the test results show that in the iron ore concentrate of the iron minerals, there is 10.40% of particles Liansheng, there are 30.68% of the monomer gangue in the Liansheng body, and gangue has been able to enter into the iron ore concentrate, mainly due to the magnetic separation process to produce magnetic reunion, resulting in the inclusion of magnetic and non-magnetic machinery to prove the use of conventional weak magnetic separation equipment elect deep enough. Therefore, to further improve the concentrate grade, reduce impurities,we must selected high efficiency separator equipment and processes,which effectively isolated from the iron ore concentrate in the living body and gangue. Further fine grinding with the living body and gangue re-election, and further improve the iron of a single worse tailings . Miaogou ores are the Anshan metamorphosed sedimentary poor magnetite, metallic minerals are magnetite. Magnetite grain sizes are uneven thickness, grain size is 0.08-0.25 mm,the ore accounted for about 30% of the total amount ,the size about 0. 08 mm below accounted for 70%. Table 2.3-9 is the ore grain size and monomer dissociation degree of control the situation, the data show that the magnetite particle size is less than 0. 038 mm, the monomer dissociation degree in order to achieve more than 95 percent, the vast majority of the ore is a difficult ordeal election ore.
Miaogou iron ore particle size and monomer solution adapted from the degree of control will csx - II magnetic screen as the primary election do not mention quality equipment, the use of MVS - 2020 High Frequency Vibrating Screen to replace the original screening equipment, while the addition of the ore processing system, Construction was completed in May 2005 and put into operation. Production practice shows that after adopting the technological transformation , the ore grade lower 1.17 percent, iron concentrate grade achieved 65.32%, an average increase is 59 percentage points when ball mill processing capacity  improve to 3.56 t, that is, raising about 9.6%. After the technological transformation Miaogou iron ore concentrator adopts this production process.   
 

转载于:https://www.cnblogs.com/dvbcxb/archive/2012/08/18/2645565.html