Method and arrangement for controlling percussion rock drilling
US7198117B2 · kind B2 · utility
10Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2004 |
| Grant date | Apr 3, 2007 |
| Priority date | — |
| Expiry date | Aug 9, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B44/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a rock drilling arrangement and a method and program for controlling rock drilling on the basis of specific energy consumption. The specific energy of drilling is the quantity of energy used per a unit of length of the drilled hole. Not only the used impact energy, but also the energy used by at least one other sub-process is taken into account when determining the specific energy. Rotation energy is typically included, but feeding energy and flushing energy can also be considered. Drilling variables are adjusted so that the specific energy is of a predetermined size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.