136210 ⎘
Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support
ASYMMETRIC HYDRAULIC SUPPORTS FOR PSEUDO INCLINED MINING IN STEEPLY DIPPING SEAM
#2Hydraulic Support with Quick Response Function for Coal Wall Spalling
#3COAL-BASED SOLID WASTE TRANSPORT AND FILLING INTEGRATED MACHINE MINING SYSTEM AND METHOD
#4Distributed coal cutting device for longwall face of coal mine
#5ROOF SUPPORT INCLUDING EXTENDABLE LINKS
#6Method and device for monitoring operation of a mining machine unit
#7Roof support including extendable links
#8SYSTEM FOR MOUNTING CROSSBAR OF TEMPORARY ROOF SUPPORT SYSTEM
#9Stepwise repeated destabilization and stabilization of highly collapsible soil mass by ‘soil nailing technique’ used for construction of railway/road underpass
#10Self-moving tunnel support canopy
#11STACKABLE MINE ROCK SHIELDS
#12Method for producing a face opening using automated systems
#13Method of setting an automatic level control of the plow in plowing operations of coal mining
#14Longwall Equipment Having Vertically Adjustable Disc Shearer Loader Guided on the Face Conveyor
#15Longwall mining roof supports
#16Method for the controlled maintaining of a distance between the top canopy and the coal face in longwall mining operations
#17STACKABLE MINE ROCK SHIELDS
#18Mining roof support cylinder corrosion protection apparatus and method
#19Mining roof support cylinder corrosion protection apparatus and method