Caving mining method

When the mine is filled with water sand or waste rock, the column is recovered by the caving method. The ground pressure control principle and use conditions of filling and caving are different, so the supporting use is very rare, but it is used to mine ore with low grade in the following

Development of flotation process

Although the basic structure and laws of the flotation process are constant, the nature of the ore is varied, so the process of handling various ores should be varied. Especially with the increasingly complex nature of the ore processing refractory str

Bauxite mining

Practice of bauxite mining and production abroad, just as with the main open-pit mining, mining of proof, a single dump truck straight into the ditch to open up the majority of Bauxite is an effective way to open up transport, it has invested