发明名称 |
SHORTENED MONOLITHIC STEMMING PLUG |
摘要 |
FIELD: blasting. ^ SUBSTANCE: invention relates to the field of drilling and blasting in hard rock quarries and may be applied in various industries where blasting in rock masses is used. A shortened monolithic stemming plug is made of a concrete mixture. The bottom portion of the stemming plug receives a hollow conical pressboard or plastic element that is mounted with its tip pointing upwards and occupies up to a half of the stemming plug height. The conical element is mounted onto a foam polystyrene or foam plastic pack being placed between an explosive charge and the monolithic stemming plug. ^ EFFECT: reducing the volume of concrete mixture required for making a monolithic concrete stemming plug. ^ 2 dwg |
申请公布号 |
RU2329463(C1) |
申请公布日期 |
2008.07.20 |
申请号 |
RU20060139570 |
申请日期 |
2006.11.07 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "TIKHOOKEANSKIJ GOSUDARSTVENNYJ UNIVERSITET" |
发明人 |
LESHCHINSKIJ ALEKSANDR VALENTINOVICH;SHEVKUN EVGENIJ BORISOVICH |
分类号 |
F42D1/08 |
主分类号 |
F42D1/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|