Bauxite Ore Mining Knowledge
- Al, Fe, O, OH
- Mixture of Iron and Aluminium Hydroxides/Oxides
Functional use: Bauxtie ore stone can be made into: Blast Furnaces, Iron/Steel Ladles, Torpedo Cars, Electric Arc furnaces, Tundishes, Soaking Pits, Reheat/Soaking Pits, Open Hearth, Cement, Aluminum, etc.
World Bauxite Mine Country: Australia, Brazil, China, Guinea, Guyana, India, Jamaica, Russia, Suriname, United States, Venezuela, etc. .
Bauxite Mining Processing Info
About eighty percent of world bauxite production, mainly from large blanket type deposits is from surface mines, while the rest are mainly from Southern Europe and Hungary, from underground excavations. On some surface deposits there is no overburden, and on others, the bauxite may be covered by 70 metres or more of rock and clay. Deposits that are hardened may require blasting in order to release the ore. Once the bauxite is loosened into manageable pieces it is generally loaded into trucks or railroad cars and transported to crushing or washing plants or to stockpiles. For the crushing adn washing processing, the major mining equipments are jaw crushers, cone crushers, sand washer, belt conveyor, vibrating screen, etc. Underground bauxite mines are used to exploit pockets or beds of deposit between layers of carbonic rock. Water in flow is a problem in most underground operations and dewatering shafts are often drilled before mining begins.
Unlike the base metal ores, bauxite does not require complex processing because most of the bauxite mined is of an acceptable grade or can be improved by a relatively simple and inexpensive process of removing clay. In many bauxites, clay is removed by some combination of washing, wet screening and cycloning, even by hand picking or sorting.
Bauxite Ore Mining and Crushing Plant Design
SBM Mining and Quarry Machinery CO.LTD has always been focusing on quarry solution and mineral mining processing solution , which has formed a lot of successful mineral ore crushing and grinding plants designs.
Firstly, the bauxite ore is broken and brought to the surface of crushing. In this step, Bauxite ore mining equipments are mainly large mining trucks , vibtating feeders, conveyor belts.
Then for the crushing processing, large blocks are crushing or pulverizing into small ones. In this step, secondary crushing plants such as impact crusher, cone crusher, CS cone crusher are used as well as the vsi crusher, sand washing machine etc. As basic mining equpment, belt conveyor and vibrating screen are all provided all the same.
The ore is then ground finely before the Bauxite-bearing sulphide minerals are concentrated by a flotation process which separates the grains of ore mineral from the waste material, or gangue. Depending on the type of Bauxite bearing minerals in the ore and the treatment processes used, the concentrate can contain between 25 and 57% Bauxite. The concentrate is then processed in a smelter.
We usually choose mobile Bauxite Ore crusher or portable Bauxite Ore crusher is this process. Because it is really convenient to use mobile Bauxite Ore crusher or portable rock crusher in this process.