A classifier equipment with overflow end spiral completely submerged below the liquid surface.
Development in Sublevel Caving The method requires significant development being part of ore (in high producing mines 6% of the total ore mined comes from developing). The cost / ton of ore in the development is several times higher than in production.
In mining Sublevel caving. This method owes the first part of its name to the fact that work is carried out on many intermediate levels (that is sublevels) between the main levels. The second half of the name derives from the caving of the hanging wall and Read More
Sublevel caving techniqueSimplicity and low cost are the essence controlled drilling and blasting. Sublevel caving is in many respects simple. It can be used in orebodies with very different properties and it is easy to mechanize. In sublevel caving ore is developed from a series of sublevels spaced at regular intervals throughout the orebody.
Sublevel caving is a largescale mining method suitable for large ore bodies with a steep dip. The setup is similar to longhole stoping except loft raises are not required. Also mining starts at the top of the ore body and progresses downwards in a safe sequence.
A method in mining by sublevel caving in which in a development phase are driven haulage drifts or shafts and from said drifts or shafts are driven crosscuts in an orebody with a spacing vertically and horizontally suitable from an economical and technical point of view from which crosscuts one or more longitudinal drifts are driven in said orebody wherein said crosscuts are driven straight through said
3. Description of sublevel caving method An underground mining method used in large steeply dipping orebodies where the wall rock is of an incompetent nature. Parallel drives are developed in the ore on equally spaced levels. The ore is then drilled and blasted using longholes between levels often in a circular or fan pattern on retreat.
Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now proceeds underground underneath the open pit.