FIELD: blasting.
SUBSTANCE: invention relates to the field of drilling and blasting in hard rock and may be applied in various industries where low-impact blasting, including blasting under covering, is used for rock masses on the surface. A wedgeable metal stemming plug comprises a lattice cylinder formed by corrugated bars passing through holes at the edge of the disc and having their heads at the top and their bevel ends at the bottom of said cylinder. A hollow spacer cone is inserted into the bottom of the lattice cylinder and fitted with: an elastic gasket at the bottom and a flexible connection at the top, said connection passing through the central hole in the disc to a connecting element.
EFFECT: improving the efficiency of rock fragmentation by blasting due to long-lasting blocking of detonation products in the charge cavity by means of a wedgeable metal stemming plug till the moment of final fracture of the surrounding rock.
4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| COMBINED WEDGEABLE STEMMING PLUG | 2006 |
|
RU2329434C1 |
| WEDGING STEM | 2006 |
|
RU2324892C1 |
| STEM | 2020 |
|
RU2736017C1 |
| FIRING METHOD OF THE BLASTHOLE CHARGES AND THE MECHANICAL DEVICE FOR THE METHOD REALIZATION | 2004 |
|
RU2291390C2 |
| METHOD OF PRODUCTION OF THE MASS EXPLOSION AND THE MECHANISM FOR ITS REALIZATION | 2004 |
|
RU2291389C2 |
| COMBINED SPREADING STEMMING | 2005 |
|
RU2291392C1 |
| METHOD FOR FORMING OF COMBINED CHARGE AND METAL STEMMING FOR ITS REALIZATION | 2006 |
|
RU2312300C1 |
| SPACED-FILLED TAMPING | 2009 |
|
RU2390722C1 |
| METHOD FOR BLASTING OF BEHCHES UNDER SHELTER AND MECHANICAL DEVICE FOR ITS REALIZATION | 2004 |
|
RU2292010C2 |
| APPARATUS FOR FORMING EXPANSIONS | 0 |
|
SU1139822A1 |
