Cover layer stripping — Separation — Top flipping — Dismantling and segmentation — Plastic surgery — Lifting and loading — Clearing debris
1、Cover layer stripping: It is a process of removing the floating soil and non mineral rock layers covering the ore to facilitate ore mining. At present, mines mostly use manual stripping methods.
2、Separation: It is the second process of separating the bar shaped block stones from the original rock of the ore layer. Due to the current scale of mining and production methods, the basic methods for mining wasteland are manual chiseling, splitting, and controlled blasting. The manual splitting method is a traditional method of manually chiseling and wedging, which has relatively high labor intensity, low efficiency, but high yield and is easy to shape; The controlled blasting method is to drill holes with a handheld pneumatic drill and use black powder or small powder rolls for controlled blasting.
3、Top flipping: It is the process of flipping over strip-shaped stones to facilitate their cutting and separation. At present, jacks and traction methods are mainly used in mines.
4、Dismantling and segmentation: It is the process of dividing strip-shaped stones into rough or raw materials according to the required scale. The method of disassembly and segmentation is roughly similar to the separation method, mainly using methods such as manual wedging, chiseling and splitting, and controlled blasting.
5、Plastic surgery: Plastic surgery is the process of processing segmented raw materials into finished products that meet the required scale. The methods of plastic surgery include manual hammering, small handheld drilling machines, handheld rock drills, as well as bead diamond wire saws and shaping machines. At present, the main methods used in mining are simple methods such as manual hammering and chiseling, without mechanical operations.
6、Lifting and loading: It is the process of transporting processed and formed raw materials to transportation vehicles. The tools used for lifting can be diverse. At present, mast cranes are commonly used in mines, and a few mining sites also use truck cranes, loaders, and crawler cranes.
7、Clearing debris: It is the process of transporting crushed stones that cannot be used as waste materials away from the waste processing plant.
Shanxi black stone is currently the most commonly used decorative stone, and its usage range is also quite wide. The above is a summary of its mining.
