Iron Ore Exploitation Problems And Solutions

Our concentrator generally coarse broken, the broken and thin broken three-stage Artificial Sand Making Machine process crushing iron ore. Coarse broken more than 1.2m or 1.5m with a jaw crusher, the broken and fine broken use the cone crusher broken using the 2.1m or 2.2m standard cone crusher, fine broken 2.1m or 2.2m short head using Cone Crusher. Through a coarse broken ore, its fragmentation is not greater than 1m, and then through the medium and fine crushing and screening into the ore particle size of less than 12mm final product send grinding groove.

Mine tailings from the actual situation analysis, the current number of Iron Ore Separation Machinery tailings service life is very short, faced with the problem of tailings discharge, must take the necessary measures as soon as possible. In certain beneficiation methods and processes, the technical management of the direct impact of beneficiation technical indicators. Active use of advanced processing equipment, is an important means to improve mineral recovery. Because geologic body is heterogeneous, the different nature of the ore deposits are different, the different nature of the ore in the same ore body area are not the same, mineral grinding operation parameters such as particle size, feed rate, magnetic field strength and the number of segments, It should be adjusted according to changes in the nature of the ore.

Good Used Stone Crushing Machine before the primaries, to reduce the amount of tailings output. Since the ore body containing varying sizes inside with stone mining process will inevitably result in the waste rock mixed. Before the ore into the mill, such as the ability of these waste rock removed as far as possible, not only can reduce the amount of grinding, but also reduces the amount of fine grade tailings output. Previously thrown waste rock has a larger size, greater utilization value. Coarse ore dry magnetic separation tailing technology has been widely used in China iron mine, but the pre-selection problem after crushing ore was once a technical problem. Currently, the former mill wet magnetic separation technology has been successfully applied, if iron ore mine in the provincial general promotion of the above, can reduce the amount of grinding more than 40 million tons of direct economic benefit of more than 800 million.

Good iron ore tailings re-election work. Carry iron ore tailings re-election is to improve resource utilization, an important measure to reduce tailings emissions. According to geological data deposit of iron ore in the iron content is not available generally about 5% higher than this indicator tailings still contain iron ore resources can be further recycled, how these resources available for further recycling, still It is the focus of future research. In the study of iron mineral tailings based on the type, choose strong magnetic and weak magnetic separation, flotation, re-election and other appropriate processing methods, or the use of joint beneficiation methods, tailings re-election; hematite, limonite high content of iron ore tailings, can explore the possibility of firing after the election. If more than the provincial average grade iron ore mine tailings can reach the national average, that is 4.5 percentage points decrease can be integrated recovery grade of 35% iron ore fines (for cement production) more than 30 million tons, the direct and indirect economic very obvious benefits.