Iron Ore Cone Crusher Production Crushing Plant

Iron ore crusher introduces: i
ron ore crusher is a kind of mechanical equipment which breaks iron ore step by step, from large pieces of raw iron ore (about 500mm) to millimeter grade fine material. Usually, the lean ore is enriched by iron ore dry separator, and the enriched iron ore is fed into the ball mill for grinding, and then the iron concentrate powder is separated and extracted by wet separation.

Material characteristics of iron ore:
Iron ore characteristics: any ore that contains economically available iron is called iron ore. There are more than a dozen kinds of iron minerals in nature. The main iron minerals of industrial significance are magnetite, hemite and pseudo hematite, followed by siderite, limonite and so on. Iron ore is an important raw material for iron and steel production enterprises, generally less than 50% grade of iron ore needs to go through mineral processing before it can be smelted and utilized. Because of the large number of lean minerals (97.5% of the total reserves) and the large number of comprehensive ores with other components (accounting for 1/3 of the total reserves), most of the iron ore in China need to be broken, ground, magnetic separation and floatation before smelting. Re-selection equal range Iron is gradually selected in order.

              

Iron ore crushing process
In the process of iron ore crushing, feeder is generally used, such as head breaking, second breaking, screening, fine crushing and dry separation. For the sake of economy, the finer the ore particle size entering the dry separator, the higher the proportion of iron ore being dry and selected. Some small concentrators directly dry clean iron ore with broken jaws, resulting in a serious waste of natural resources.

Therefore, it is a subject that iron ore dressing units must face and study to select the allowable conditions of economy and improve the separation rate of iron ore as much as possible. At present, individual mineral processing units in China use a large number of traditional hammering, which is a kind of economical and economical production mode of investment cost, which not only has low production efficiency, but also causes great waste of natural resources.


Primary crushing
Jaw crusher is generally used in iron ore production, and circular crusher is used in large production units (especially in foreign large mines). Jaw crusher is a traditional and stable and reliable coarse crushing equipment, which has a wide range of applications. In 2013, the manufacturing process and technical level of jaw crusher have been very mature, as long as the products of regular manufacturers are used. Can meet the design and production requirements.



Secondary crushing
In the production process of iron ore crushing, there are generally two types of second breaking: either fine jaw breaking or conical crusher. Fine jaw rupture is generally used in small iron ore separation yard, its equipment value is low, the structure is simple, the maintenance is simple and convenient. However, the broken discharge port of the fine jaw can only be adjusted to 25mm at a minimum, so the broken particle size is generally below 40mm.
   


The structure of conical crusher is more complex and the equipment value is high. However, its output is large, the broken particle size is fine, and the service life of wear-resistant parts is longer. Therefore, cone crusher is widely used in large iron ore separation yard. From the production efficiency and cost of iron ore, the use of cone crusher can effectively reduce the production cost. Because cone crusher can provide smaller product granularity, the main crushing task of iron ore by laminating equipment is a very economical mode of production.