CN101338675A - Open-cast side shrouded beneficial mineral open well combined mining method - Google Patents
Open-cast side shrouded beneficial mineral open well combined mining method Download PDFInfo
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- CN101338675A CN101338675A CNA2008100127007A CN200810012700A CN101338675A CN 101338675 A CN101338675 A CN 101338675A CN A2008100127007 A CNA2008100127007 A CN A2008100127007A CN 200810012700 A CN200810012700 A CN 200810012700A CN 101338675 A CN101338675 A CN 101338675A
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Abstract
The present invention provides a combined exploitation method for a beneficial mineral open well is covered under a strip mine boundary slope. The problems to be solved by the combined exploitation method are as follows: firstly, a spiral drill is used for recovering, a stable is required to be reserved between two drills due to the restriction of the length of a drill rod, so the percentage extraction is very low; secondly, a slope mine is excavated from the proper position on the surface of ground, a roadway is extended to a ledge for arranging a mining area, and underground mining is realized. The slope mine construction and support project quantity is large, which is expense-wasting and time-consuming. In the key points of the combined exploitation method, the ledge section at the boundary slope of the goaf of the strip mine is used, a main adit and a secondary adit are excavated in the ledge directly and are extended into the boundary slope for arranging the mining area to realize the underground exploitation and recovery of the beneficial mineral in the strip mine boundary slope. Then the mineral is transported to the ground by a transportation channel or a haulage plant which is formed in a strip mine stope. The combined exploitation method has the advantages of saving a great deal of slope mine construction project quantity and support project quantity, avoiding the unsafe factor of the slope mine during the processes of construction and operation and improving the production system safety of the mine.
Description
Technical field
The present invention relates to limit, opencut digging field group and press down and be covered with beneficial mineral (metal, nonmetal or coal, down with), utilize the convenience of opencut limit group exposure beneficial mineral, adopt the method for this beneficial mineral of well worker technology mode back production.
Background technology
Limit, opencut digging field group presses down the recovery method that is covered with beneficial mineral at present has following several: (1) adopts a kind of auger to reclaim, and limited by run of steel, and must stay stable ore pillar between two brills, so the rate of extraction is very low; (2) occur a kind of machinery of the similar down-hole of a kind of front end cutting coal machine in recent years, adopt more piece box-shaped screw rod chute to go back to the ore deposit, slightly improve than auger mode.But same the existence limited by mechanical length, need stay a large amount of ore pillars, the shortcoming that the rate of extraction is low.(3) dig inclined shaft from face of land correct position, the tunnel is delivered to ore bed and is arranged exploiting field realization pit mining.Slope construction and support engineering amount are big, and be not only expensive but also time-consuming.
Summary of the invention
For overcoming the deficiency of prior art, the object of the present invention is to provide a kind of opencut limit group to press down and be covered with beneficial mineral dew well unitized production method.
The object of the present invention is achieved like this: utilize the ore bed section of bare ground limit group exposure, directly dig main adit and secondary footrill and put in the group of limit in ore bed, arrange the exploiting field, realize that the beneficial mineral pit mining reclaims in the group of opencut limit.By transport channel or the haulage device that has formed in the open-pit mine stope mineral are transported to ground then.
The present invention compared with prior art, its advantage is: make full use of opencut stripping and adopt the condition that engineering has been reduced to man-machine operation's face ore bed, directly arrange well worker master tunnel, adit and stoping operation face; Save a large amount of inclined shafts and dug engineering quantity, support engineering amount, support material; Transit link and special haulage device in the inclined shaft have been saved; Ventilation link and equipment etc. in the inclined shaft have been saved; In the middle of long-term operation, saved the maintenance work of inclined shaft again; Main is to have avoided the unsafe factor of inclined shaft in construction and running, has improved the security of system that the mine produces.
The specific embodiment
Utilize the ore bed section of bare ground limit group exposure, directly in ore bed, dig main adit and secondary footrill and put in the group of limit, arrange the exploiting field, realize that the beneficial mineral pit mining reclaims in the group of opencut limit.By transport channel or the haulage device that has formed in the open-pit mine stope mineral are transported to ground then.
Claims (1)
1, a kind of opencut limit group presses down and is covered with beneficial mineral and reveals well unitized production method, it is characterized in that: the ore bed section that utilizes the exposure of bare ground limit group, directly digging main adit and secondary footrill in ore bed puts in the group of limit, arrange the exploiting field, realize that the beneficial mineral pit mining reclaims in the group of opencut limit, by transport channel or the haulage device that has formed in the open-pit mine stope mineral are transported to ground then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100127007A CN101338675A (en) | 2008-08-08 | 2008-08-08 | Open-cast side shrouded beneficial mineral open well combined mining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100127007A CN101338675A (en) | 2008-08-08 | 2008-08-08 | Open-cast side shrouded beneficial mineral open well combined mining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101338675A true CN101338675A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100127007A Pending CN101338675A (en) | 2008-08-08 | 2008-08-08 | Open-cast side shrouded beneficial mineral open well combined mining method |
Country Status (1)
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| CN (1) | CN101338675A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031972B (en) * | 2009-09-25 | 2013-04-24 | 中国矿业大学(北京) | L-shaped mining method under open-underground mining |
| CN103696773A (en) * | 2013-12-26 | 2014-04-02 | 鞍钢集团矿业公司 | Combined open-pit and pit mining process of near-surface ore body |
| CN109296369A (en) * | 2018-10-12 | 2019-02-01 | 太原科技大学 | A kind of outdoor successive coal-mining face highwall coal recovery process |
| CN113338938A (en) * | 2021-04-21 | 2021-09-03 | 紫金矿业集团股份有限公司 | Safety control method for open-pit and underground collaborative mining of metal mine |
| CN114483038A (en) * | 2022-01-26 | 2022-05-13 | 中国矿业大学 | Coal-pressing underground mining method for out-of-reach strip mine |
-
2008
- 2008-08-08 CN CNA2008100127007A patent/CN101338675A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031972B (en) * | 2009-09-25 | 2013-04-24 | 中国矿业大学(北京) | L-shaped mining method under open-underground mining |
| CN103696773A (en) * | 2013-12-26 | 2014-04-02 | 鞍钢集团矿业公司 | Combined open-pit and pit mining process of near-surface ore body |
| CN109296369A (en) * | 2018-10-12 | 2019-02-01 | 太原科技大学 | A kind of outdoor successive coal-mining face highwall coal recovery process |
| CN113338938A (en) * | 2021-04-21 | 2021-09-03 | 紫金矿业集团股份有限公司 | Safety control method for open-pit and underground collaborative mining of metal mine |
| CN114483038A (en) * | 2022-01-26 | 2022-05-13 | 中国矿业大学 | Coal-pressing underground mining method for out-of-reach strip mine |
| CN114483038B (en) * | 2022-01-26 | 2022-10-11 | 中国矿业大学 | Coal-pressing underground mining method for out-of-reach strip mine |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090107 |