Ads
related to: underground hard rock mining equipment
Search results
Results From The WOW.Com Content Network
There are two principal phases of underground mining: development mining and production mining. Development mining is composed of excavation almost entirely in (non-valuable) waste rock in order to gain access to the orebody. There are six steps in development mining: remove previously blasted material (muck out round), scaling (removing any unstable slabs of rock hanging from the roof and ...
LHD (load, haul, dump) loaders are similar to conventional front end loaders but developed for the toughest of hard rock mining applications, keeping overall production economy, safety, and reliability in consideration. They are extremely rugged, highly maneuverable, and exceptionally productive.
The Hard Rock Miner's Handbook is a reference book that deals with the underground hard-rock mining industry. It was written by engineer Jack de la Vergne as a non-profit publication. [1] The first edition was published in 2000 by McIntosh Engineering, a mining engineering consulting company. [2]
A drilling jumbo consists of one, two or three rock drill carriages, sometimes a platform, which the miner stands on to load the holes with explosives, clear the face of the tunnel or do something else. [further explanation needed] The carriages are bolted onto the chassis, which supports the miner's cabin as well as the engine. Although modern ...
They are typically used in the mining industry to remove oversize rocks that are too large or too hard to be reduced in size by a crusher. Rockbreakers consist of two major components, a hydraulic hammer (used to break rocks) and a boom (the arm). There are two major types of rock breakers, mobile and stationary - typically placed on a pedestal ...
A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...