EP 2247823 A1 20101110 - METHOD FOR CONTROLLING LONGWALL MINING OPERATIONS
Title (en)
METHOD FOR CONTROLLING LONGWALL MINING OPERATIONS
Title (de)
VERFAHREN ZUM STEUERN VON STREBBETRIEBEN
Title (fr)
PROCÉDÉ POUR ASSURER LA COMMANDE D'INSTALLATIONS D'EXPLOITATION PAR TAILLE
Publication
Application
Priority
EP 2008001262 W 20080219
Abstract (en)
[origin: WO2009103303A1] Disclosed is a method for controlling longwall coal mining operations comprising a face conveyor (20), at least one extraction machine (22), and a hydraulic shield support. In said method, the inclination of the shield components relative to the horizontal line in the direction of advance is determined by means of inclination sensors (17) mounted on at least three of the four main components of each shield support frame (10), such as the floor skid (11), the gob shield (14), the supporting connection rods (16), and in the gob zone of the top canopy (13), and the height (h1) of the shield support frame (10) perpendicular to the bed at the forward end of the top canopy (13) is calculated as a measure of the face opening (30) from the measured data in a computer unit by comparing said measured data with the basic data that is stored in the computer unit and defines the geometrical orientation of the components and the movement thereof during the advance.
IPC 8 full level
E21C 25/56 (2006.01); E21D 23/00 (2006.01)
CPC (source: EP US)
E21C 35/12 (2013.01 - EP US); E21D 23/12 (2013.01 - EP US)
Citation (search report)
See references of WO 2009103303A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009103303 A1 20090827; AU 2008351272 A1 20090827; AU 2008351272 B2 20130110; CN 101970795 A 20110209; CN 101970795 B 20130612; EA 016460 B1 20120530; EA 201001132 A1 20110228; EP 2247823 A1 20101110; EP 2247823 B1 20140625; PL 2247823 T3 20150130; US 2011049964 A1 20110303; US 8672414 B2 20140318
DOCDB simple family (application)
EP 2008001262 W 20080219; AU 2008351272 A 20080219; CN 200880127131 A 20080219; EA 201001132 A 20080219; EP 08715851 A 20080219; PL 08715851 T 20080219; US 91847308 A 20080219