CN102392645A - Mining method for treating upward pinch-out of inclined thin ore body - Google Patents
Mining method for treating upward pinch-out of inclined thin ore body Download PDFInfo
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- CN102392645A CN102392645A CN2011102108303A CN201110210830A CN102392645A CN 102392645 A CN102392645 A CN 102392645A CN 2011102108303 A CN2011102108303 A CN 2011102108303A CN 201110210830 A CN201110210830 A CN 201110210830A CN 102392645 A CN102392645 A CN 102392645A
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Abstract
The invention provides a mining method which has a small mining work amount and is easy and convenient for ore removal specific to the situation that a complete ore block cannot be formed in a region where upward pinch-out of an inclined thin ore body occurs. The mining method mainly comprises the following steps of: digging a short ore drawing jack shaft upwardly on one side of a travelling roadway; digging an electric rake road along the lateral trending direction of a foot wall of the ore body; digging funnel through holes of 1 meters on the electric rake road at the intervals of 5 meters; digging ore collecting funnels from the funnel through holes; and enlarging the funnels into a funnel shape, and forming undercutting and raise to complete major mining and cutting work. Ore automatically flows into the electric rake road through the ore collecting funnels, is raked into the short ore drawing jack shaft through an electric rake, and is intensively raked into the short jack shaft through the electric rake road, so that the length of a funnel neck can be reduced effectively, the accurate mining work amount is reduced, and a better economic benefit is achieved.
Description
Technical field
The present invention relates to a kind of mining methods, relate in particular to a kind of upwards mining methods of pinching gradually of narrow orebody of handling.
Background technology
Shallow hole shrinkage method is used for inclination, utmost point inclination and upper lower burrs wall rock condition narrow orebody preferably generally speaking, and it is less generally to adopt accurate cutting quantity, and ability is also less relatively.But along ore body pinching direction, can not become a complete nugget, total nugget ore deposit amount is less, and also need accomplish same adopting and cut engineering quantity, just possibly adopt the ore of complete nugget.
Summary of the invention
The purpose of this invention is to provide a kind of make progress mining methods of pinching of inclined thin ore body of handling, overcome the imperfect nugget of former shallow hole shrinkage method mining ore body pinching direction and adopt and cut the bigger shortcoming of engineering quantity.
A kind of make progress mining methods of pinching of inclined thin ore body of handling; It is characterized in that: adopt that cut mainly comprises the phase of boring haulage drift, adopts accurate courtyard, scraper road, the short drop shaft of ore drawing, funnel and bucket wear; On a side direction of haulage drift, dig the short drop shaft of ore drawing earlier, and, whenever dig 1 meter bucket to ore body in the scraper road then and wear at a distance from 5 meters along ore body lower wall side volt direction pick bar scraper road; Put on pick collection ore deposit funnel from bucket again; At last funnel is brushed big funnel and formed to undercut and go up a hill, accomplish cutting work, during ore drawing; With the scraper that is installed in mineral building ore is harrowed the short drop shaft of ore drawing that pick is good in advance in the mineral building foundation, in the transportation mine car of leak gate rolling in the level haulageway.
A kind of make progress mining methods of pinching of inclined thin ore body of handling, it is characterized in that: for creating favourable blasting condition, undercuting highly is no more than 2.5 meters, and the width that undercuts equals orebody thickness; When orebody thickness was very thin, the width that undercuts was not less than 1.2 meters, to guarantee smooth ore drawing.
The inventive method has following advantage: owing to adopted the scraper road neck portion that will struggle against to link together; Can concentrate the scraping ore, can reduce each funnel and all need arrange a long bucket neck, can effectively reduce to adopt and cut engineering quantity; In addition; Be arranged in the ore body lower wall to the scraper road, rather than in the middle of traditional ore body, improved the safety of stoping operation and ore removal greatly.These mining methods employing collection ore deposit funnel from slipping into the scraper road, is harrowed the ore deposit into the short drop shaft of ore drawing with ore by scraper again, and ore removal is easy, and actual mining is accomplished later on ore removal in a large number, and nugget production capacity also can improve greatly, produces better economic benefit.
Description of drawings
Fig. 1 is for adopting the mine structural representation of the inventive method mining;
Fig. 2 is I-I cross section view of Fig. 1;
Fig. 3 is III-III cross section view of Fig. 2.
The specific embodiment
Specify the embodiment of the inventive method below:
A kind of make progress embodiment of pinching mining methods of inclined thin ore body that handles:
Nugget constitutes across pitch and arranges that length is 50m, highly is miding level height 50m, the high 3m of fore-set, when the return aircourse, top need not keep and country rock firm, during the safety condition permission, also can not keep fore-set.Foundation height 4m, studding 6 wide 6m.
Adopt that cut mainly comprises phase of boring haulage drift 3, adopts accurate courtyard 4, scraper road 2, the short drop shaft 1 of ore drawing, funnel 5 and bucket wear 7 etc.; Wherein stage haulage way 3 sections are 2200mm * 2500mm; Adopting accurate courtyard 4 sections is 2 * 2 m
2, scraper road 2 sections are 2 * 2 m
2, the short drop shaft 1 of an ore drawing is set in the mineral building, the stope polycrystalline substance adopts the polycrystalline substance of scraper ore removal.
Adopting accurate cutting work mainly is on a side direction of haulage drift 3, to dig the short drop shaft 1 of ore drawing earlier; And along ore body 8 lower wall sides volt direction pick bar scraper road 2; The every bucket to ore body 8 pick 1m at a distance from 5m wears 7 in the scraper road then; Wear 7 pick collection ore deposit funnels 5 from bucket again, at last funnel is brushed big funnel and formed to undercut and go up a hill, accomplish cutting work; During ore drawing, ore is harrowed the short drop shaft 1 of ore drawing that pick is good in advance in the mineral building foundation, in the transportation mine car of leak gate rolling in the level haulageway 3 with the scraper that is installed in mineral building.
For creating favourable blasting condition, undercuting highly is no more than 2.5m, and the width that undercuts equals ore body 10 thickness; When ore body 8 very thin thickness, the width that undercuts is not less than 1.2m, to guarantee smooth ore drawing.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.Those of ordinary skill for technical field under the present invention; Under the prerequisite that does not break away from the present invention's design, make some alternative or obvious modification that are equal to; And performance or purposes are identical, then should be regarded as belonging to the protection domain that claims that the present invention submits to are confirmed.
Claims (2)
1. handle the make progress mining methods of pinching of inclined thin ore body for one kind; It is characterized in that: adopt that cut mainly comprises phase of boring haulage drift (3), adopts accurate courtyard (4), scraper road (2), the short drop shaft (1) of ore drawing, funnel (5) and bucket wear (7); On a side direction of haulage drift (3), dig the short drop shaft (1) of ore drawing earlier, and, whenever dig 1 meter bucket to ore body (10) in scraper road (2) then and wear (7) at a distance from 5 meters along ore body (8) lower wall side volt direction pick bar scraper road (2); Wear (7) pick collection ore deposit funnel (5) from bucket again; At last the big funnel of funnel (5) brush is also formed to undercut and go up a hill, accomplish cutting work, during ore drawing; With the scraper that is installed in mineral building ore is harrowed the short drop shaft (1) of ore drawing that pick is good in advance in the mineral building foundation, in the transportation mine car in the level haulageway (3) is arrived in the rolling of leak gate.
2. the make progress mining methods of pinching of processing inclined thin ore body according to claim 1, it is characterized in that: for creating favourable blasting condition, undercuting highly is no more than 2.5 meters, and the width that undercuts equals ore body (8) thickness; When ore body (8) very thin thickness, the width that undercuts is not less than 1.2 meters, to guarantee smooth ore drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102108303A CN102392645A (en) | 2011-07-27 | 2011-07-27 | Mining method for treating upward pinch-out of inclined thin ore body |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102108303A CN102392645A (en) | 2011-07-27 | 2011-07-27 | Mining method for treating upward pinch-out of inclined thin ore body |
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| CN102392645A true CN102392645A (en) | 2012-03-28 |
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| CN2011102108303A Pending CN102392645A (en) | 2011-07-27 | 2011-07-27 | Mining method for treating upward pinch-out of inclined thin ore body |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017621A (en) * | 2012-11-29 | 2013-04-03 | 青海山金矿业有限公司 | Blasting method for reducing depletion in steeply inclined thin ore body recovery |
| CN103264015A (en) * | 2013-02-25 | 2013-08-28 | 湖北杉树垭矿业科技开发有限公司 | Gravity screening draw shaft device and construction method thereof |
| CN104747190A (en) * | 2015-04-02 | 2015-07-01 | 广西大学 | Thin ore-body mechanized highly-layering continuous mining method |
| CN107237636A (en) * | 2017-08-01 | 2017-10-10 | 陕西冶金设计研究院有限公司 | A kind of noble metal inclined orebody ro om -character and method |
Citations (4)
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| SU706536A1 (en) * | 1978-07-31 | 1979-12-30 | Институт Физики И Механики Горных Пород Академии Наук Киргизской Сср | Method of mining great ore deposits |
| RU1809061C (en) * | 1991-02-11 | 1993-04-15 | Институт Горного Дела Ан Казсср | Method of mining ore bodies |
| CN101634227A (en) * | 2008-07-22 | 2010-01-27 | 鞍钢集团矿业公司 | Flat-bottomed trench shallow hole shrinkage method |
| CN101864957A (en) * | 2010-05-25 | 2010-10-20 | 广西大学 | Great ore drawing simultaneous filling non-top column shrinkage mining method |
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2011
- 2011-07-27 CN CN2011102108303A patent/CN102392645A/en active Pending
Patent Citations (4)
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| SU706536A1 (en) * | 1978-07-31 | 1979-12-30 | Институт Физики И Механики Горных Пород Академии Наук Киргизской Сср | Method of mining great ore deposits |
| RU1809061C (en) * | 1991-02-11 | 1993-04-15 | Институт Горного Дела Ан Казсср | Method of mining ore bodies |
| CN101634227A (en) * | 2008-07-22 | 2010-01-27 | 鞍钢集团矿业公司 | Flat-bottomed trench shallow hole shrinkage method |
| CN101864957A (en) * | 2010-05-25 | 2010-10-20 | 广西大学 | Great ore drawing simultaneous filling non-top column shrinkage mining method |
Non-Patent Citations (2)
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| 孙光华等: "浅孔留矿法在小型矿山采矿中的应用", 《矿业快报》, no. 5, 31 May 2008 (2008-05-31), pages 69 - 70 * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017621A (en) * | 2012-11-29 | 2013-04-03 | 青海山金矿业有限公司 | Blasting method for reducing depletion in steeply inclined thin ore body recovery |
| CN103264015A (en) * | 2013-02-25 | 2013-08-28 | 湖北杉树垭矿业科技开发有限公司 | Gravity screening draw shaft device and construction method thereof |
| CN103264015B (en) * | 2013-02-25 | 2014-04-16 | 湖北杉树垭矿业科技开发有限公司 | Gravity screening draw shaft device and construction method thereof |
| CN104747190A (en) * | 2015-04-02 | 2015-07-01 | 广西大学 | Thin ore-body mechanized highly-layering continuous mining method |
| CN104747190B (en) * | 2015-04-02 | 2017-04-26 | 广西大学 | Thin ore-body mechanized highly-layering continuous mining method |
| CN107237636A (en) * | 2017-08-01 | 2017-10-10 | 陕西冶金设计研究院有限公司 | A kind of noble metal inclined orebody ro om -character and method |
| CN107237636B (en) * | 2017-08-01 | 2023-11-21 | 陕西冶金设计研究院有限公司 | Precious metal inclined ore body mining structure and method |
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Application publication date: 20120328 |