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1. AU2014223132 - Method and device for using gangue aboveground to backfill mine goaf

Office
Australia
Application Number 2014223132
Application Date 22.01.2014
Publication Number 2014223132
Publication Date 06.11.2014
Publication Kind B2
IPC
E21F 15/06
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
15Methods or devices for placing filling-up materials in underground workings
06Filling-up mechanically
E21F 15/08
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS
15Methods or devices for placing filling-up materials in underground workings
08Filling-up hydraulically or pneumatically
CPC
E21F 13/002
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
13Transport specially adapted to underground conditions
002Crushing devices specifically for conveying in mines
E21F 15/08
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
15Methods or devices for placing filling-up materials in underground workings
08Filling-up hydraulically or pneumatically
Applicants China University of Mining and Technology
Inventors Du, Changlong
Jiang, Hongxiang
Li, Jianping
Luo, Chenxu
Yang, Daolong
Zheng, Kehong
Agents Griffith Hack
Title
(EN) Method and device for using gangue aboveground to backfill mine goaf
Abstract
(EN) Disclosed are a method and device for using the gangue aboveground to backfill a mine goaf, the method comprising: in the process of a gangue backfill, crushing the gangue aboveground via a double-roll crusher (4); then conveying the crushed gangue to the bottom of the mine via a material vertical conveyor (6); recrushing the fractions of the gangue in the mine via a double-roll crusher (8) so as to obtain the particle diameter required by a pneumatic conveyor (9); and finally transporting the recrushed gangue to backfill the goaf in the mine via the pneumatic conveyor (9). The method and device for using the mine gangue aboveground to backfill a goaf tunnel in the mine can safely and efficiently transport the gangue from the ground to the goaf in the mine at a depth of a few hundred meters from the ground so as to backfill the goaf in the mine, thus saving the floor area occupied by the gangue piled on the ground, and reducing the danger of earth surface subsidence.
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