Aluminum Ore (Bauxite) Crushing Production Line

Aluminum is kind of the world's second largest common metals, whose production and consumption is second only to iron and steel. Aluminum is kind of metal material which is of a supporting role and strategic position in the national economy. Alumina is the main raw material for aluminum smelting. For every 1 ton of aluminum production, it consumes nearly 2 tons of alumina. In addition, alumina with various special properties are widely used in electronics, petroleum, chemicals, refractories, ceramics, paper, pharmaceutical and other industries. Therefore, alumina production plays an important role in every country’s economic development.

• 1, alunite ore
• 2, primary crusher
• 3, secondary crusher
• 4, rotary kiln
• 5, to atmosphere
• 6, heat recovery system
• 7, ball mill
• 8, pneumatic classifier
• 9, repulp tank
• 10, water
• 11, NH3 gas

• 12, reactor
• 13, recycle NH3
• 14, slurry
• 15, drum filter
• 16, potassium sulphate
• 17, ammonium sulphate
• 18, fertilizer solution
• 19, to evaporation
• 20, alumina hydrate slurry
• 21, sulfur dioxide gas
• 22, recycle SO2

• 23, thickener
• 24, sulfuric acid
• 25, sulphate solution
• 26, silica and impurities
• 27, aluminum sulphate
• 28, to aluminium salts production
• 29, sulphur trioxide
• 30, alumina
• 31, kiln
• 32, recycled water

This picture is the main process of alumina production in which you can see the first stage that is alunite ore crushing and grinding. There are two stages for alunite ore crushing including primary crush and secondary crushing. For further grinding, ball mill is used before the pneumatic classifier.

Here we recommend to you SBM Jaw Crusher as aluminum ore primary crusher. There are both double-toggle jaw crusher and single-toggle jaw crusher. Also there are more advanced European Jaw Crusher apart from ordinary jaw crusher.

For aluminum ore secondary crushing, you can choose cone crusher or impact crusher. What’s different is the final products’ shape. After crushed by impact crusher, the final products will be of good, cubic shape and without tensility and cranny. Therefore for highway and railway surface as well as water and electricity industry, we recommend to choose impact crusher.

Ball mill is the most traditional grinding machine in the aluminum ore grinding. With simple structure and reliable quality, ball mill is much popular in various minerals’ grinding.