EXPLOSIVE PROTECTION DEVICE FOR EXPLOSIVE OBJECTS Russian patent published in 2017 - IPC E04B1/92 

FIELD: blasting.

SUBSTANCE: flameproof device containing metallic armoured cage with the armoured plating and metal filler, which is executed in the form of dispersed system air-lead. The lead is made in the form of crumbs, the frame has fixed support sleeves at the ends, and at least three support rods are rigidly embedded in the cover of the explosive object, with the support sheets in the upper part, which are telescopically inserted into the fixed pipe supports in the metal armoured frame, in the upper part of the support, rods are fixed resilient damping elements, one end of which is rigidly connected by their base to the stopping sheets, and the other - is located freely. Each of the support rods, telescopically inserted by the lower part into fixed pipe-supports, embedded in a metal frame. Its lower end is rigidly embedded in the coating of the object at the opening, and the end-plates are welded to the upper end. The frame is made hollow with a set of damping disks in the internal cavity.

EFFECT: increase of explosion protective devices operation reliability in case of the emergency explosion at the facility, and providing of these structures return into the original position after the explosion.

3 cl, 2 dwg