I. Open pit mining
Trenching operation: In order to facilitate the passage of subsequent blasting or mining equipment, various trenches need to be dug on the mine. A
small excavator can dig the roadbed of a road for transporting ore in a mine, ensuring that transport vehicles can travel safely by digging to the right
depth and width. It can also dig trenches for the laying of conveyor belts or pipelines in the mine, which can transport the mined ore to the processing
site, or lay water and gas pipelines to the various operating areas of the mine.
Ore Mining Support Operations
Small Scale Mining: In the mining of veins with high ore grades but relatively small reserves, a small excavator can carry out mining directly. It can dig
at the outcrop of the ore body, along the direction of the vein, to dig out the ore and load it onto transport equipment. For example, in some gold or
gemstone mining, due to the small size and irregular distribution of the vein, large mining equipment is difficult to perform, small excavator can play
its fine digging advantage, the precious ore out of the complete mining.
Secondary crushing assistance: for some large ores, after the initial blasting, may also need to carry out secondary crushing. A small excavator can be
equipped with a hydraulic crushing hammer to crush those large ore blocks that are not suitable for re-entering the crusher. It can pick out suitable
Roadway Excavation: In underground mining, a large number of roadways need to be excavated to build the transport, ventilation and drainage
system of the mine. Small excavator can play a role in the narrow space underground, especially in some small section of the roadway. It can transfer
the excavated ore to the transport equipment by connecting to equipment such as bridge type transfer machine. At the same time, the small body of
the small excavator enables it to move flexibly in the complex underground roadway environment, and it is convenient to adjust the excavation angle
and position to ensure that the roadway is excavated smoothly according to the design requirements.
Ore loading: In underground mines, the small excavator can be responsible for loading the mined ore onto the mine truck or belt conveyor. It can be
operated flexibly in the narrow mining space to concentrate the scattered ore and load it into transport containers. For example, in some thin-seam
mining, the small excavator can excavate and load coal from the working face into nearby ore cars, reducing the labour intensity of workers and
improving the ore loading efficiency.
Transshipment cooperation: in the transshipment link of underground mines, the small excavator can be used in cooperation with other transport
equipment. It can transfer the ore from the mining face to the entrance of the belt conveyor in the main haulage roadway, or transfer the ore from the
temporary storage point to the permanent storage silo. This flexible transfer method can effectively improve the efficiency of ore transfer in undergrourd mines and ensure the smooth progress of the whole mining process.
Third, mine environmental management and restoration
Tailings dam construction and management
Tailings dam construction: In the process of ore dressing in the mine will produce a large number of tailings, the need to build tailings storage to store.
A small excavator can play an important role in the initial construction of the tailings storage, used in the tailings dam damming operation. It can
excavate the foundation at the dam site, and then pile up and compact the tailings sand or other dam building materials layer by layer to form the
dam body of the tailings dam. By precisely controlling the excavation depth and the thickness of the material pile, the small excavator can ensure the
structural stability of the tailings dam.