SELF-PROPELLED MOUNT FOR SHELTER OF BLAST POINTS Russian patent published in 1999 - IPC

FIELD: mining art, applicable at blasting of rocks in quarries of valuable ores and blasting operations in strained circumstances. SUBSTANCE: self-propelled mount has a transport facility in the form of a carriage with a supporting platform, vertical frame with guard members for covering the grid openings in the form of flexible vessels coupled to the supporting platform by means of hydraulic cylinders, and a horizontal frame with flexible vessels with liquid, having relief valves for outlet of liquid under pressure into a sealed vessel installed on the horizontal frame above the flexible vessels. The vertical frame is coupled to the supporting platform through a counterrecoil mechanism for its movement and inclination relative to the supporting platform; additionally installed is a dust collector with a flexible dust duct and elastic housing forming a closed space above the horizontal frame; the mount has an adsorber, and its horizontal frame is sectionalized, it is suspended from the supporting platform beam on cables, and has pneumatic pockets in the horizontal frame flexible vessels. EFFECT: reduced dynamic loads on damping shield and gaseous dust ejections. 4 dwg