PLANT FOR POWDER BURNING Russian patent published in 2012 - IPC G01N33/22 

FIELD: blasting.

SUBSTANCE: in a plant comprising a casing with holes for placement of piezoquartz pressure sensors made of two cylinders with tension, inserted one into the other, a cover with a sealing device, an ignition cover, an ignition spacer with a device of gases exhaust with a damaged element, an electric input; the design of the ignition spacer is modified. The ignition spacer is made in the form of a cylindrical bushing with holes for placement of piezoquartz pressure sensors, two ledges on the outer surface at one end, coupled accordingly with the casing and the ignition cover, an axial through hole, having alternating cylindrical and conical surfaces, and is placed in the inner volume of the casing. The inner (working) cavity of the plant for powder burning is formed with an edge part of the axial through hole in the ignition spacer with a cylindrical surface, having the largest diameter, and the cover.

EFFECT: increased service life of a number of ignitions in the inner cavity of the plant.

1 dwg