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Title: Microwave assisted hard rock cutting

Patent ·
OSTI ID:867753
 [1];  [2];  [3]
  1. Apple Valley, MN
  2. Bloomington, MN
  3. Inver Grove Heights, MN
+ Show Author Affiliations

An apparatus for the sequential fracturing and cutting of subsurface volume of hard rock (102) in the strata (101) of a mining environment (100) by subjecting the volume of rock to a beam (25) of microwave energy to fracture the subsurface volume of rock by differential expansion; and , then bringing the cutting edge (52) of a piece of conventional mining machinery (50) into contact with the fractured rock (102).

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Assignee:
United States of America as represented by Secretary of (Washington, DC)
Patent Number(s):
US 5003144
OSTI ID:
867753
Country of Publication:
United States
Language:
English

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Related Subjects

microwave
assisted
hard
rock
cutting
apparatus
sequential
fracturing
subsurface
volume
102
strata
101
mining
environment
100
subjecting
beam
25
energy
fracture
differential
expansion
bringing
edge
52
piece
conventional
machinery
50
contact
fractured
cutting edge
microwave energy
differential expansion
mining machine
wave energy
subsurface volume
hard rock
fractured rock
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