1. Home
  2. Long Long Wall And Pillar Mining

Long Long Wall And Pillar Mining

Longwall mining is a high extraction technique where coal is removed in 1400 ft panels that stretch for miles Unlike traditional room and pillar mining in a longwall mine no coal pillars are left in place to provide surface support above the panel Hydraulic supports are used to hold the roof up at the working face of the coal seam.

Get PriceSend Message

ining construction equipment price list mining companies in malaysia material grinding refracory chinese mobile jaw crusher s in new zealand echanical mechinery in a mining industry quarry at sarawak zenith track type crusher india hammer crusher counterattack contrast flotation machine hst cone crusher pf impact crusher copper mining process plant for sale indonesia ining and processing phosphate in south africa characteristics of granite quarry in nigeria cement millcement equipmentcement making plantcement plantcement mill rock crusher thumb jaw crusher manufacturer ratings mining crusher equipment layout cone crusher short head foot cement plant project for mechine drives crushing station configuration tata stone crusher machines nairobi zenith mobile jaw crusher italy