In the mining sector, the filter press is used for the tailing and the concentrate. Coal mines have to deal with the problem of disposing of the uneconomic material, by-product of the coal production. Especially, Matec machines can dewater the waste fines suspended in water, recovering them, cleaning water and eliminating tailing ponds.
Matec filter press is also employed in the concentrate recovering. For this application, the cake output must have a very low residual moisture, 6 or 7 %, and Matec filters can reach it through the installation of membrane plates which squeeze further and the core blow accessory to dry the cakes.
Processed rocks, coal and clay may contain a wide range of heavy materials, such as arsenic, lead, cadmium, chromium, iron, manganese, aluminum and nickel.
The Coal sector develops around the global use of coal as solid fuel for power stations and heating supply. USA is one of the major coal producers and users of the world. MATEC has installed over 50 filtration plants worldwide in the major coal mines. Rocks, coal, and clay may contain a wide range of heavy materials, such as arsenic, lead, cadmium, chromium, iron, manganese, aluminum and nickel. This is why it is important filtrating waste waters to clarify them and recover the precious materials.
USA is well-known for their resources. The IRON-ORE industry involves the extraction and processing of raw materials, such as: metals (iron, nickel, bronze and zinc), non-metals, noble metals (gold, silver, platinum and palladium), minerals, and other sector products (silicates, clays, kaolin, etc.). The mineral concentrate value is increasing every day in the market. Its recovery is fundamental to maximize the returns.