The segmentation method is applicable to the ore mining of ore and surrounding rock with a stable slope of 30° to 55° and a steep slope of >55°.
(two) advantages
(1) The use of trackless shipping equipment, flexibility in application, high mining strength.
(2) After the mining house is finished, it is allowed to return to the mining column and treat the gob immediately. This not only improves the recovery rate of ore back to the mining column, but also better handles the empty area, thus creating favorable conditions for the next section of mining.
(three) shortcomings
(1) The mining workload is large, because each section must be driven into the section transportation laneway, rock drilling roadway, pillar mining recovery chamber and cutting lane.
(2) Most of the roadways are excavated in the rock, and the ore is less produced.
With the popularization of trackless equipment in China, the segmentation method is used to mine medium and thick inclined ore bodies, which will be an effective mining method. In particular, when other conditions are better due to the angle of inclination (40° more than one degree), this method can be used when it is not suitable by other methods.
Tunnel drilling rig is refers to the coal mine full hydraulic tunnel drilling rig, underground drill rig, tunnel bore hole Drilling Machine, coal mine hydraulic tunnel drilling rig is mainly used cemented carbide, diamond compact bit, rotary drilling, hydraulic tunnel drilling rig is widely used for mine different Angle of ground water, water injection, and put the gas hole and geological exploration, such as slope anchor drilling construction.
Specifications and models: ZDY-660, ZDY1200, ZDY-2000s. The all-hydraulic tunnel drilling rig used in coal mine is widely used in the drilling construction of water exploration, water injection, gas exploration, geological exploration and slope anchoring at different angles in the mine. It is especially suitable for near horizontal drilling of + / - 300 underground coal 0mines and allows all-around use of + / - 900.
The drilling rig adopts hydraulic transmission mechanism, which has the features of large drilling capacity, fast speed, simple operation, stable and reliable work and convenient installation.
Tunnel Drilling Machine
Tunnel Drilling Machine,Horizontal Drilling Machine,Zdy Drilling Machine,Zlj Drilling Machine
Shandong Hengwang Group Co., Ltd , https://www.hwmac.com