CHARGING SLEEVE Russian patent published in 2023 - IPC F42D1/08 F42B3/87 

FIELD: mining industry.

SUBSTANCE: the group of inventions relates to mining industry and may be used in the production of blasting works both in dry wells and water ones. A charging sleeve – option 1 – includes stemming part, made with the possibility of placing a detonator in it, and a locking ring. At the bottom of the charging part of the sleeve there is a pocket for placing loads, above which a pipe is installed inside the charging sleeve in the charging part, fixed with seams along the walls of the charging sleeve in the direction from the junction of the pocket and the wall of the charging sleeve to the upper point of the pipe, a dynamic swirler is placed inside the pipe. A charging sleeve – option 2 – includes stemming part and charging part, made with the possibility of placing a detonator in it, and a locking ring. At the bottom of the charging part of the sleeve there is a pocket for placing loads, inside the charging sleeve there is a pipe fixed in the charging part, inside which a dynamic swirler is placed, the pipe is fixed with the possibility of holding it until detonation.

EFFECT: increasing the efficiency of blasthole charge detonation.

2 cl, 2 dwg, 1 tbl