Blasting method by controlling oxygen supply
US7497165B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 20, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Oct 29, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23G2209/16
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blasting method of blasting an explosive device at least containing an explosive and a chemical agent in a sealed pressure vessel that prevents soot generation during blasting and improves an efficiency of decomposing the chemical agent. First, a transported chemical bomb (explosive) 100 is placed and sealed in a blasting chamber (pressure vessel) 10. The blasting chamber 10 is then brought into a reduced-pressure or vacuum state by aspiration of the air therein by using a vacuum pump 13a and oxygen is supplied through an injection port 12 into the blasting chamber 10 to a pressure of 15 to 30% of atmospheric pressure. The chemical bomb 100 is then blasted, as it is ignited by an ignition device not shown in the Figure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.