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Highwall mining is a method of mining that originated from auger mining. The method differs in that continuous miners, rather than augers, are used to bore an entry adjacent to the coal seam of a highwall left behind in an open pit mine after excavation has been completed. Screw conveyors positioned behind the continuous miner haul the cut coal from deep within the seam up to an outside stockpiling area where it is then transported away.
Another primary difference in a highwall mining operation is that it is carried out by remote control at the surface where an operator located in a cabin uses a television camera to monitor and control the progress of the continuous miner machine.
Highwall Mining Process
When the cost of excavating an open-pit mine is no longer economically feasible, highwall mining may be deployed before the entire operation is taken underground.
Highwall mining as a first option presents many advantages to underground mining because it is more cost-effective and involves less lead-time. The process of mining a highwall with continuous miners is proven to also be much safer since operations are carried out exclusively by remote control and require fewer personnel than underground mining.
Highwall mining at the surface produces the same amount of output as mining underground might. With highwall mining, smaller blocks of coal can also be accessed and operations are facilitated around geological impediments or structures that otherwise impinge upon coal production.
Highwall Mining Equipment for Sale
SBM is specialized in manufacturing and supplying of mining equipment including quarrying, crushing, grinding, sand making, processing and beneficiation plant. With knowhow technology and long experience in mining industry, all of our mining plants are designed in simple and robust structure, and with the benefits of high efficiency, low energy cost, easy operation and maintenance.
Crushing plant: jaw crusher, impact crusher, cone crusher, VSI crusher, mobile crusher etc.
Grinding Mill: ball mill, high pressure mill, raymond mill, ultrafine mill, trapezium mill etc.
Auxiliary equipment: vibrating screen, vibrating feeder, belt conveyor, sand washing machine etc.
Since it needs huge investment cost for large scale new aggregate crushing plant. It maybe unaffordable for small scale quarry or mine operator. According to this problem. SBM developed small scale quarrying plant with low price and high production efficiency. There are also used highwall mining equipment for sale. Please feel free to contact us for more information.