Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Thermal Drilling of Blastholes.

Authors
Thirumalai-K
Source
Subsection 11 5 in SME Mining Engineering Handbook 1:11-56to11-60
Link
NIOSHTIC No.
10010767
Abstract
This section on thermal drilling and chambering (jet piercing) of blastholes describes high-energy heating as a proven though relatively new method of preparing blastholes. Novel high-energy heat sources with the potential for drilling and disintegrating rocks are laser and infrared heaters, electron beams, plasma heaters, electrical heaters, and supersonic oxygen-fuel oil or compressed air-fuel oil burners. Supersonic "rocket" burners using oxygen and light petroleum-based fuel oil reactants have found wide acceptance for blasthole drilling, especially in some hard taconite formations.
Publication Date
19730101
Document Type
OP;
Fiscal Year
1973
NTIS Accession No.
NTIS Price
Identifying No.
OP 25-74
Source Name
Subsection 11.5 in SME Mining Engineering Handbook, Vol. 1, PP. 11- 56 to 11-60
TOP