APPARATUS FOR PREVENTING AIR BLAST, SOUND, FLY ROCK AND ROCK DUST IN THE ROCK

摘要

The present invention is a cross-section of the inner space to avoid during rock blasting zeolite and attenuate the explosion, and relates to a protection apparatus for efficiently collecting the rock flour or a gas, in particular, body 10 is joined together with a plurality of steel plates (1) forms a rectangle, the inner section is made of a pyramid shape, which gradually decreases toward the top side at the bottom edge is joined the side wall plate (2) in the vertical direction at the bottom is opened, the top is closed with a cover plate (4) the iron plate 1, the inner surface has a plurality of shock-absorbing plate 11 of an elastic material is fixed to blocking any explosion rock scattering, and is adapted to absorb buffer the shock, and the lower end of the body 10 the side wall is connected to the outer side of the outer surface of the cover plate 4 and the blocking plate 14 of an elastic material is fixed to extend downwardly to seal the clearance between the lower end surface of the body with the ground, the body 10 has Is provided with a Li (6) it is able to connect the wires to move the crane.