CN103615251B - Thin type ore body bar shaped mining methods - Google Patents
Thin type ore body bar shaped mining methods Download PDFInfo
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- CN103615251B CN103615251B CN201310669539.1A CN201310669539A CN103615251B CN 103615251 B CN103615251 B CN 103615251B CN 201310669539 A CN201310669539 A CN 201310669539A CN 103615251 B CN103615251 B CN 103615251B
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- ore body
- drift
- mineral building
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- nugget
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- 238000005065 mining Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 41
- 239000011707 mineral Substances 0.000 claims abstract description 41
- 239000011435 rock Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000004880 explosion Methods 0.000 claims description 6
- 239000002360 explosive Substances 0.000 claims description 4
- 238000010790 dilution Methods 0.000 abstract description 5
- 239000012895 dilution Substances 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a kind of thin type ore body bar shaped mining methods.The method specifically comprises the following steps; (1) incline direction along ore body laterally offers haulage drift and return aircourse, is divided into by ore body and organizes nugget more; (2) vertically offer the drift of many through return aircoursies and haulage drift again along the incline direction of nugget, thus nugget is divided into many groups mineral building that width is 3-5m; (3) mineral building, laterally a work plane is offered from drift; (4) dig up mine with the direction of haulage drift to return aircourse at work plane, picking simultaneously goes out the goaf formed after barren rock fills mining; (5) repeat step (4), adopt complete strips mineral building along haulage drift to the direction of return aircourse, and then ore body is exploited completely complete.The present invention can the thin type ore body of recovery of subterranean level, inclination effectively, improves the safety of ore extraction, reduces the rate of dilution of ore extraction, substantially increase production efficiency and economic benefit.
Description
Technical field
The present invention relates to a kind of mining methods, particularly relate to a kind of thin type ore body bar shaped mining methods, particularly a kind of thickness is the mining methods of 0.3-0.5m ore body, belongs to mining technique field.
Background technology
Past part of mineral resources often because orebody thickness is thin, and does not possess exploitation economic worth.Along with socioeconomic high speed development and scientific and technical progress, constantly increase the demand of mineral resources, the utilization ratio of resource also improves day by day, and the mineral resources originally not possessing mining conditions embody its economic worth gradually.At present, these are stored in the very thin ore body resource of underground horizontal, low dip and inclination, general employing open-stope method mining, open-stope method mining needs the working space of certain altitude, therefore mining certainly will excavate the rock of a large amount of non-mineral resources class, cause work rate low, cost of winning is high, and the mineral resources rate of dilution is very high, such as orebody thickness 0.5m, mining height 1.8m, the rate of dilution is up to more than 70%; Simultaneously the barren rock of a large amount of exploitation needs from underground haulage to ground stacking, pollutes the environment, land occupation, even forms mud-rock flow and earth's surface large area is sunk, the geological disaster source such as subside.
Summary of the invention
The object of the invention is to, a kind of thin type ore body bar shaped mining methods are provided.The present invention can the thin type ore body of recovery of subterranean level, inclination effectively, improves the safety of ore extraction, reduces the rate of dilution of ore extraction, substantially increase production efficiency and economic benefit.
Technical scheme of the present invention: thin type ore body bar shaped mining methods, the method specifically comprises the following steps;
(1) incline direction along ore body laterally offers haulage drift and return aircourse, is divided into by ore body and organizes nugget more;
(2) vertically offer the drift of many through return aircoursies and haulage drift again along the incline direction of nugget, thus nugget is divided into many groups mineral building that width is 3-5m;
(3) mineral building, laterally offer a work plane from drift, when the thickness of mineral building Mineral is greater than 0.5m, the country rock of mineral building bottom does not carry out back production; When the thickness of mineral building Mineral is less than 0.5m, the country rock of mineral building bottom carries out back production, makes the height of face be greater than 0.5m, manually digs up mine to facilitate;
(4) dig up mine with the direction of haulage drift to return aircourse at work plane, namely first carry out the operation of cutter eye in the both sides of work plane, set out one group of borehole, the trend of borehole is parallel to face; In borehole, load explosive again, carry out explosion; Then utilize rake to be transported through drift by the ore after explosion, picking simultaneously goes out the goaf formed after barren rock fills mining;
(5) repeat step (4), adopt complete strips mineral building along haulage drift to the direction of return aircourse, and then ore body is exploited completely complete.
In above-mentioned thin type ore body bar shaped mining methods, described nugget length is along inclined direction less than 50m.
In aforesaid thin type ore body bar shaped mining methods, stay in goaf and establish ore pillar with roof supporting, prevent from caving in.
In aforesaid thin type ore body bar shaped mining methods, stay in goaf and establish several groups of mineral buildings with roof supporting, prevent from caving in.
Compared with prior art, the present invention has following beneficial effect:
(1) because the Work places of the present invention personnel when digging up mine is drift, in drift, carrying out the operation of cutter borehole and take off digging ore, avoiding the work plane of personnel in goaf and carry out operation, substantially increase operational security.
(2) the present invention is when orebody thickness is greater than 0.5m, and substantially do not need the country rock exploiting ore body bottom, the rate of dilution of ore can control within 20%, greatly increases.
(3) country rock in mineral building of the present invention does not need all to carry out bursting work, greatly reduces the cutter workload of borehole and the consumption of explosive, reduces cost of production.
(4) in mining process, be filled to goaf after the part barren rock picking be mixed in ore goes out, barren rock need not be transported to ground, decrease ground appropriation of land amount, alleviate the pollution to ground environment, avoid ground owing to piling the barren rock of amplification quantity, and the geological disaster caused.
Accompanying drawing explanation
Fig. 1 is exploitation state diagram of the present invention;
Fig. 2 is I-I profile in Fig. 1;
Fig. 3 is II-II profile in Fig. 1.
Being labeled as in accompanying drawing: 1-ore body, 2-haulage drift, 3-return aircourse, 4-nugget, 5-drift, 6-mineral building, 7-work plane, 8-country rock, 9-borehole, 10-goaf.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but not as limitation of the present invention.
Embodiments of the invention: a kind of mining methods of thin type ore body, as illustrated in the accompanying drawings from 1 to 3, the method specifically comprises the following steps;
(1) incline direction along ore body 1 laterally offers haulage drift 2 and return aircourse 3, and ore body 1 is divided into many group nuggets 4, described nugget length is along inclined direction less than 50m;
(2) vertically offer the drift 5 of many through return aircoursies 3 and haulage drift 2 again along the incline direction of nugget 4, thus nugget 4 is divided into many groups mineral building 6 that width is 3-5m;
(3) mineral building 6, laterally offer a work plane 7 from drift 5, when the thickness of mineral building 6 Mineral is greater than 0.5m, thickness refers to the thickness of mineral products vertical direction here, and the country rock 8 of mineral building 6 bottom is not exploited, and country rock refers to the rock mass below ore body; When the thickness of mineral building 6 Mineral is less than 0.5m, the country rock 8 of mineral building 6 bottom is exploited, make the height of face 7 be greater than 0.5m, manually dig up mine to facilitate;
(4) dig up mine with 3 directions of haulage drift 2 to return aircourse at work plane 7, namely first carry out the operation of cutter eye in the both sides of work plane 7, set out one group of borehole 9, the trend of borehole 9 is parallel to face 7; In borehole 9, load explosive again, carry out explosion; Then utilize rake to be transported through drift 5 by the ore after explosion, picking simultaneously goes out the goaf 10 formed after barren rock fills mining;
(5) repeat step (4), complete strips mineral building 6 is adopted in the direction along haulage drift 2 to return aircourse 3, and then exploits complete completely by ore body 1.Staying in goaf 10 establishes ore pillar with roof supporting, or stays in goaf 10 and establish several groups of mineral buildings with roof supporting, prevents from caving in.
Claims (2)
1. thin type ore body bar shaped mining methods, is characterized in that: the method specifically comprises the following steps;
(1) incline direction along ore body laterally offers haulage drift and return aircourse, is divided into by ore body and organizes nugget more;
(2) vertically offer the drift of many through return aircoursies and haulage drift again along the incline direction of nugget, thus nugget is divided into many groups mineral building that width is 3-5m;
(3) mineral building, laterally offer a work plane from drift, when the thickness of mineral building Mineral is greater than 0.5m, the country rock of mineral building bottom does not carry out back production; When the thickness of mineral building Mineral is less than 0.5m, the country rock of mineral building bottom carries out back production, makes the height of face be greater than 0.5m, manually digs up mine to facilitate;
(4) dig up mine with the direction of haulage drift to return aircourse at work plane, namely first carry out the operation of cutter eye in the both sides of work plane, set out one group of borehole, the trend of borehole is parallel to face; In borehole, load explosive again, carry out explosion; Then utilize rake to be transported through drift by the ore after explosion, picking simultaneously goes out the goaf formed after barren rock fills mining;
(5) repeat step (4), adopt complete strips mineral building along haulage drift to the direction of return aircourse, and then ore body is exploited completely complete;
Staying in goaf establishes ore pillar with roof supporting, prevents from caving in;
Stay in goaf and establish several groups of mineral buildings with roof supporting, prevent from caving in.
2. thin type ore body bar shaped mining methods according to claim 1, is characterized in that: described nugget length is along inclined direction less than 50m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310669539.1A CN103615251B (en) | 2013-12-10 | 2013-12-10 | Thin type ore body bar shaped mining methods |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310669539.1A CN103615251B (en) | 2013-12-10 | 2013-12-10 | Thin type ore body bar shaped mining methods |
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| Publication Number | Publication Date |
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| CN103615251A CN103615251A (en) | 2014-03-05 |
| CN103615251B true CN103615251B (en) | 2016-01-20 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107829737A (en) * | 2017-11-27 | 2018-03-23 | 西北矿冶研究院 | Mining method for gently inclined thin to medium thick ore body |
| CN108457654A (en) * | 2018-02-10 | 2018-08-28 | 广西华洋矿源材料有限公司 | A kind of production practice of Pb-Zn deposits |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2209972C2 (en) * | 2001-07-04 | 2003-08-10 | Акционерное общество открытого типа "Приаргунское производственное горно-химическое объединение" | Method of mining of jointly occurring steep thin ore bodies in stable and medium-stable rocks |
| CN101864957A (en) * | 2010-05-25 | 2010-10-20 | 广西大学 | Great ore drawing simultaneous filling non-top column shrinkage mining method |
| CN101975064A (en) * | 2010-10-21 | 2011-02-16 | 中南大学 | Mechanical continuous mining method for gently inclined thin ore body |
| CN102635356A (en) * | 2012-04-26 | 2012-08-15 | 中南大学 | Medium-length hole mining method in multiple blasting free faces of high dipping thin veins |
-
2013
- 2013-12-10 CN CN201310669539.1A patent/CN103615251B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2209972C2 (en) * | 2001-07-04 | 2003-08-10 | Акционерное общество открытого типа "Приаргунское производственное горно-химическое объединение" | Method of mining of jointly occurring steep thin ore bodies in stable and medium-stable rocks |
| CN101864957A (en) * | 2010-05-25 | 2010-10-20 | 广西大学 | Great ore drawing simultaneous filling non-top column shrinkage mining method |
| CN101975064A (en) * | 2010-10-21 | 2011-02-16 | 中南大学 | Mechanical continuous mining method for gently inclined thin ore body |
| CN102635356A (en) * | 2012-04-26 | 2012-08-15 | 中南大学 | Medium-length hole mining method in multiple blasting free faces of high dipping thin veins |
Non-Patent Citations (2)
| Title |
|---|
| 我国应用留矿全面采矿法的现状;刘华生等;《金属矿山》;19930331(第3期);第23-28页 * |
| 留矿采矿法在极薄矿脉开采中的应用与发展;郭忠林等;《铜业工程》;20040630(第2期);第10-13页 * |
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Address after: 310022 No. 208, Huazhong Road, Gongshu District, Hangzhou City, Zhejiang Province Patentee after: CNBM DESIGN & RESEARCH INSTITUTE CO.,LTD. Address before: 310003 No. 450, Zhongshan North Road, Xiacheng District, Hangzhou, Zhejiang Patentee before: CHINA NEW BUILDING MATERIALS DESIGN & Research Institute |
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Denomination of invention: Thin ore body strip mining method Effective date of registration: 20231201 Granted publication date: 20160120 Pledgee: Hangzhou United Rural Commercial Bank Limited by Share Ltd. Shiqiao subbranch Pledgor: CNBM DESIGN & RESEARCH INSTITUTE CO.,LTD. Registration number: Y2023980068711 |
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