Drilling crown with kinematic self-sharpening of blades
Authors:
Abstract
In coal pits, the most productive method of blast drilling, in which rocks are destroyed by the principle of cutting, is becoming more and more widespread. The main disadvantage of this principle is the rapid blunting of rock-destroying tools.
Область исследования:
(Archived) Without section
Similar articles
Final temperature of ventilation air heating in multi-row mine calorifier units
1973 L. P. Severin, K. A. Dolgov
Determination of optimal stack sizes of a half-bunker warehouse
1973 I. I. Margolin, A. M. Faktorovich