FIELD: blasting.
SUBSTANCE: method includes stages, at which they fill each well with an explosive charge and place a tight shell with water on the surface of the exploded block near head of each well. At the same time the tight shell with water is placed in a hollow cylinder installed above the well head. Besides, the diameter of the cylinder is comparable with the well diameter, and height is selected depending on the necessary volume of the tight shell.
EFFECT: increased efficiency of dust suppression and increased efficiency factor of explosive energy during mass blasting of wells at pits.
| Title | Year | Author | Number |
|---|---|---|---|
| SUSPENDED BOREHOLE PLUG | 2008 |
|
RU2371671C1 |
| SUSPENSION WELL STEMMING | 2009 |
|
RU2409805C1 |
| BOREHOLE GAP DEVICE | 2021 |
|
RU2754692C1 |
| SUSPENDED BOREHOLE TAMPING | 2009 |
|
RU2401416C1 |
| SUSPENDED DOWN-HOLE STEMMING | 2011 |
|
RU2459178C1 |
| METHOD FOR DUST SUPPRESSION AT MASS BLASTINGS OF HOLES IN OPEN CUTS | 2000 |
|
RU2168700C1 |
| DRYING METHOD OF BLOCK TO BE EXPLODED DURING DIRECT COAL EXTRACTION TECHNOLOGY | 2010 |
|
RU2452859C1 |
| METHOD OF DUST SUPPRESSION DURING BLASTING OPERATIONS | 2018 |
|
RU2714402C2 |
| METHOD OF CONDUCTING DRILLING AND BLASTING OPERATIONS WITH SHIELDING | 2016 |
|
RU2630004C1 |
| SUSPENDED WELL STEM | 2009 |
|
RU2419063C1 |
