Title:
METHOD FOR RECOVERING STORED ORE WHEN TRANSITIONING FROM CAVING METHOD TO FILLING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/241972
Kind Code:
A1
Abstract:
A method for recovering stored ore when transitioning from a caving method to a filling method. When transitioning from a caving mining method to a filling mining method, an ore outgoing road (4), an original subsection ore drift transportation roadway (10), a stage ore drift transportation roadway (12) and other projects of the original caving method are used to recover ore resources stored in a previous subsection. Inter-panel pillars (13) are arranged along the strike of an ore body. Mining is carried out step by step at panel intervals, and is carried out from an upper panel to a lower panel in the panels. Recovery is carried out step by step from bottom to top in the vertical direction, and recovery is carried out simultaneously for a plurality of ore loading routes (2) in a stope. After two to three layers are recovered in a panel, same are immediately organized and filled as an artificial false roof for deep mining and an ore covering layer (7) in the upper part of an empty region. Once a body to be filled is completely cemented, the upper part of a layer is then recovered. The described method efficiently recovers stored ore resources when transitioning from the caving method to the filling method, improves the safety of the recovery of stored ore, eliminates safety hazards in a mining region, and prolongs the service lifespan of the mine.
Inventors:
YU LIUPING (CN)
WANG JING (CN)
ZHANG PENG (CN)
XIONG SHAOYUN (CN)
HU YONGQUAN (CN)
LIN MIN (CN)
WANG JING (CN)
ZHANG PENG (CN)
XIONG SHAOYUN (CN)
HU YONGQUAN (CN)
LIN MIN (CN)
Application Number:
PCT/CN2021/116006
Publication Date:
November 24, 2022
Filing Date:
September 01, 2021
Export Citation:
Assignee:
SINOSTEEL MAANSHAN GENERAL INSTITUTE OF MINING RES CO LTD (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZATION FOR METALLIC MINERA (CN)
ENGINEERING INVESTIG & DESIGN INSTITUTE OF SINOSTEEL MIMR CO LTD (CN)
HUAWEI NATIONAL ENGINEERING RES CENTER OF HIGH EFFICIENT RECYCLE AND UTILIZATION FOR METALLIC MINERA (CN)
ENGINEERING INVESTIG & DESIGN INSTITUTE OF SINOSTEEL MIMR CO LTD (CN)
International Classes:
E21C41/16; E21F15/00
Foreign References:
| CN108547618A | 2018-09-18 | |||
| CN113216964A | 2021-08-06 | |||
| CN113216963A | 2021-08-06 | |||
| CN102704934A | 2012-10-03 | |||
| CN107339104A | 2017-11-10 | |||
| US20030168903A1 | 2003-09-11 | |||
| US20070046094A1 | 2007-03-01 |
Other References:
ZHANG QI: "Recovery Technique of the Stocked Ore in Deep Hole Bord", MODERN MINING, vol. 3, 31 March 2014 (2014-03-31), pages 1 - 3, XP009541373, ISSN: 1674-6082
Attorney, Agent or Firm:
MA'ANSHAN CITY JINQIAO PATENT AGENT LTD. (CN)
Download PDF: