| 摘要 |
FIELD: coal mining industry, particularly for underground storage sump cleaning. ^ SUBSTANCE: method involves mounting flight conveyer on storage sump ground; flooding thereof with mine water; pumping mine water out of excavation; dewatering rock mass and loading thereof on the flight conveyer with the use of different loading devices. Lattice flight is covered with protective cases before flooding operation performing. The rock mass is loaded through loading openings created after case removing from the conveyer. ^ EFFECT: increased efficiency, labor productivity and reduced time and cost of storage sump cleaning. ^ 1 dwg |
