公开(公告)号：US3730097A

公开(公告)日：1973-05-01

申请号：US3730097D

申请日：1971-10-28

Applicant: DYNAMIT NOBEL AG

Inventor： HELFGENI W ,  ROHDE W

IPC: C06C7/00 ,  C06B25/32 ,  C06C5/00 ,  C06C5/04 ,  C06C5/06

CPC classification number: C06C5/00 ,  C06B25/32 ,  C06C5/04 ,  C06C5/06

Abstract: A fuze for use in firedamp and coal-dust endangered operations suitable for use in the longhole blasting technique which includes a hollow tube, an explosive core of desensitized explosive surrounding the hollow tube, a wound strip of plastic encasing the explosive core, a multiple-layer spun casing of fibers enclosing the wound plastic strip and an envelope of inert substances surrounding the multiple-layer spun casing. The envelope is, preferably, a mixture of a polymer and insert substances covered, respectively, by cellulose-base fibers, a wound strip of plastic, a multiple-layer spun envelope of fibers, and finally a waterproof outer shell of synthetic resin.

Abstract translation: 一种适用于长孔爆破技术的火炬和煤尘濒危作业的引信，包括中空管，围绕中空管的脱敏炸药爆炸核心，围绕爆炸核心的塑料缠绕条， 包围缠绕塑料条的纤维的层状纺丝套管和围绕多层旋转套管的惰性物质的包层。 该信封优选分别由纤维素基纤维，缠绕的塑料条，多层纺丝的纤维包裹层以及最后是合成树脂的防水外壳覆盖的聚合物和插入物质的混合物。