EE WAS PULLING/SETTING SHIELDS ON THE LONGWALL MINING FACE. WHILE WALKING ALONG THE FACE CONVEYOR HE BUMPED A 1/2 INCH WASHDOWN HOSE VALVE WITH HIS HAND. THE HOSE BEGAN SPRAYING WATER AND THE VALVE END WHIPPED AND STRUCK EE AROUND HIS RIGHTEYE. NOTE: EE WAS WEARING SAFETY GLASSES.