SYSTEM OF "SID" BOREHOLE CHARGE INITIATION Russian patent published in 2009 - IPC F42D1/04 

FIELD: weapons.

SUBSTANCE: system for "SID" borehole charge initiation may be used in mining industry and in construction for increased reliability and efficiency of explosive substances (ES) borehole charges initiation with low shock-wave sensitivity. System represents body of polymer material consisting of two compartments, ES is located in upper compartment, and stick-detonator - in lower compartment, being equipped with pipeline of initiation system communications (ISC) and handle for transportation and lowering of body in well that differs by the fact that ISC are placed and fixed between external doubled vertical ribs of body rigidity or inside separate pipe of smaller diametre, which is located aside of body along its length, or inside body in through compartment made in the form of two plates connected at an angle to each other and adjacent to internal surface of body. Body is made of circular section pipe with cover closing lower compartment equipped with spring-loading elements for fixation of ICS and pressing of detonator sticks to upper compartment of body. Length of separate pipe with smaller diametre installed outside body is more than body length due to ends of pipe that project at the top and bottom, with length of 2-4 pipe diametre, at that lower end of pipe is cut at the angle of 25-45 degrees to vertical line from external side of pipe, at that there are cuts (slots) at pipe ends at the distance of 1-2 cm from pipe ends, with length of at least four, and width of at least one and a half of diametre of used wave guides or detonating cords, at that lower cut (slot) is located from the side of body and is installed in single plane with central axes of pipe and body, and upper cut is located at the angle of 90 degrees to lower cut or inside cumulative cavity installed in body vertically along its side surface and directed outside. Upper part of body is made in the form of cumulative funnel. Body handle is made in the form of cross, or in the form of pyramid carcass or in the form of trapezoid. ES located in upper part of body has speed of detonation that is higher than detonation speed of borehole charge ES, but lower than detonation speed of detonator sticks located in lower compartment of body.

EFFECT: provision of safety in handling of initiation system in all technological operations.

5 cl, 15 dwg