Iron chemical compounds, which include ferrous and ferric compounds, have many uses. Iron oxide mixed with aluminium powder can be ignited to create a thermite reaction, used in welding and purifying ores. It forms binary compounds with the halogens and the chalcogens. Among its organometallic compounds, ferrocene was the first sandwich compound discovered.

Iron plays an important role in biology, forming complexes with molecular oxygen in hemoglobin and myoglobin; these two compounds are common oxygen transport proteins in vertebrates. Iron is also the metal used at the active site of many important redox enzymes dealing with cellular respiration and oxidation and reduction in plants and animals.
In our life, iron can be described as the most useful and inexpensive, the richest and most important metal of the. Iron is carbon steel, cast iron main elements of industrial and agricultural production, equipment manufacturing, rail vehicles, roads, bridges, ships, docks, housing, civil engineering are inseparable from the steel components
Ball mill and ultra-fine mill are usually used to grinding iron ore in grinding process as iron ore grinding mill . Ball mill has two ways to grinding: the dry process and the wet process. It is widely applied in mineral classification, cement, fireproof materials, glass, pottery, chemical industry and so on.
Our raymond mill is to grind materials in the fields of building materials, mining, metallurgy and chemical industry. The materials should have the hardness less than 7 in Mohs scale and humidity less than 6 percent. The granularity of the end products can be adjusted from 30 to 325 meshes (the minimum is 600meshes).
Vibrating screen is the screening machine used in iron ore crushing and screening plant. It screens out the appropriate iron ore particles, these particles enter into ball mill for grinding.