CN102562068B - Mine subsequent cemented and non-cemented filling mining method - Google Patents
Mine subsequent cemented and non-cemented filling mining method Download PDFInfo
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- CN102562068B CN102562068B CN2012100257844A CN201210025784A CN102562068B CN 102562068 B CN102562068 B CN 102562068B CN 2012100257844 A CN2012100257844 A CN 2012100257844A CN 201210025784 A CN201210025784 A CN 201210025784A CN 102562068 B CN102562068 B CN 102562068B
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Abstract
The invention discloses a mine subsequent cemented and non-cemented filling mining method, comprising the following steps: (1) preparing chambers; (2) preparing for chamber filling; (3) preparing for filling: making tailing, cement, super-micro powder and aggregate made from mining waste rock into a filling slurry with the concentration of larger than 70 %, carrying out cemented filling by applying pressure or flowing automatically to the prepared mining chambers, and carrying out non-cemented filling only by directly filling the mining chambers with high-concentration tailing having the concentration of larger than 65 % and mining waste rock having the particle size of less than 2 cm; (4) stoping and filling the chambers: stoping and filling the next adjacent chamber in every four chambers, wherein the cemented and non-cemented filling modes are carried out alternately between the adjacent chambers; and (5) managing after filling. The invention has significant economic social benefits, and is suitable for mining with the filling mining method, especially for the mid-low grade phosphate rock.
Description
Technical field
The present invention relates to the method for mining by the way of filling, furthermore, relate to afterwards cementing and Non cemented filling mining methods of a kind of mining.
Background technology
The technology close with the present invention is Chinese patent ZL200710077624.3 " phosphogypsum cementing and post-filling mining method and pulping process thereof ", it is take ardealite, flyash or dolomite and cement as filling the material of slip that this patent discloses pulping process, after adding water, by complete mixing plant, make filling slurry; Filling slurry is adopted accurate level through the input of filling borehole or pumping plant, then outside filling pipeline inclined shaft enters the higher slice arteries and veins of filling stope the layering gallery, be filled with stope by the higher slice mineral building connecting taxiway of filling stope.This invention can guarantee arrival at mine full capacity and stable yields, improves ore recovery ratio, and phosphate rock resource is recycled fully, remarkable in economical benefits; Can also effectively protect mine environment; the mining of solution open-stope method forms geological disaster, mine produces dangerous; bring the problem of threat for earth's surface industrial facility, highway and house; but the shortcoming that it is maximum or weak point are directly to use to the huge industrial residue phosphogypsum of environmental hazard as main filler filling in underground, and its harm to underground Environmental Water system will be huge.Secondly, it adopts full consolidated fill must be directed at the increase of filling cost, and this, for the exploitation of the poor mid low grade phosphate rock district ore of ore quality, is extremely disadvantageous on cost of winning.
A large amount of rejects-mine tailings that mid low grade phosphate rock stone produces through the ore-dressing technique enrichment, ore-dressing technique tailings concentration out is about 20%, and mine tailing is sent into Tailings Dam.And the accumulation of mine tailing and management belong to China's Management of Major Risk scope.
Summary of the invention
The objective of the invention is in order to overcome the defect of prior art, afterwards cementing and Non cemented filling mining codes of phosphorus tailings are provided.In order to realize this purpose, a kind of mining of the present invention afterwards cementing and particular contents Non cemented filling mining methods comprises:
(1), mineral building is prepared:, according to the requirement of mining codes, adopt every four mineral buildings, the mode of a mineral building of exploitation is exploited;
(2), the mineral building filling is prepared: will form 25000 meters of 45 meters to 120 meters, interval after the mineral building exploitation
3With 30000 meters
3Mined area, mineral building has been adopted the plank shutoff of the rear route of ore removal to polycrystalline substance, reserves the deep water hole, mined area starts filling after soakaway trench is installed;
(3), filling is prepared:
Requirement by application number 201210008744.9 " casting resin oar of a kind of method of mining by the way of filling and preparation method thereof ", the aggregate that mine tailing, cement, Ultramicro-powder and mining barren rock are made is prepared into casting resin oar greater than 70% concentration and pressurizes by pipeline or flow automatically to the ready sky mineral building of adopting and carry out consolidated fill, that is:
By press filtration or deeply to bore dense mode dense for the high-concentration tailings of concentration more than 65% with the milltailings of 20% concentration, the water of separation is back to beneficiation flowsheet;
Again by pipeline with the dense casting resin oar preparation station that is transported to mine cave mouth for the above mine tailing of concentration 65%, stand in the preparation of casting resin oar, press each material formula by weight by mixing plant: cement: Ultramicro-powder=0.8～0.3:0.2～0.7; Aggregate-to-cement ratio is 4～12; Debris is the particle less than 2cm, and debris is unfixing with the ratio of mine tailing, is prepared into concentration and is equal to or greater than 70% casting resin oar; Pressurize or flow automatically to the ready sky mineral building of adopting by pipeline and carry out consolidated fill;
Non cemented filling only is the high-concentration tailings more than 65% and less than the particle of 2cm, digs up mine the direct filling of barren rock in adopting the sky mineral building with dense;
(4), back production and mineral building filling:
Mined area starts filling after soakaway trench is installed, polycrystalline substance partly carries out the high strength filling with the casting resin oar that aggregate-to-cement ratio is 4, and each packed height can not, greater than 60 centimeters, be carried out the mineral building filling subsequently, be 10～12 casting resin oar low-intensity filling with aggregate-to-cement ratio, until complete dead zone of filling; After obturation reaches and solidifies requirement, then every four mineral buildings, to exploiting adjacent next mineral building back production and filling;
The adjacent mines room adopts staggered the carrying out of cementing mode with Non cemented filling;
Stage casing mainstay on starting to reclaim after mineral building exploitation in whole stage casing finishes, casting resin oar at the aggregate-to-cement ratio 4 that mainstay dead zone part is adopted carries out the high strength filling, sprayed mortar knot top is adopted on the knot top of obturation, wherein for strengthening the stability of obturation, in high strength obturation part, the split anchor pole of constructing is in advance strengthened obturation and roof and floor to connect;
(5), the management after filling:
In the process of carrying out filling, the cemented filling material oar of different proportion is prepared the pressure testing standard component, after meeting, final setting time carries out pressure testing check intensity, every day fill area is patrolled and examined and is made a report on simultaneously patrol record;
The water that obturation is oozed out, carries out after corresponding physical chemistry is processed discharging according to result of laboratory test after sample examination to shaft bottom special use sump by the pipeline centralized recovery;
Set up surface displacement deformation monitoring management system, grasp at any time the earth's surface situation of change, with this, instruct and adjust underground filling work.
Economic and social benefit of the present invention is remarkable:
1, realized the safety in production of mining process.
2, mining recovery is brought up to more than 90% from 70%.
3, carry out Balancing Analysis of Charges from the output capacity of mine tailing and the expense of filling, the output capacity of mine tailing is 30%, and the demand in goaf is 40%, therefore, the mine tailing total amount can not satisfy the demands, and the barren rock (different mining methods have different digging ratios) that the construction of recycling mine tunnel engineering produces can be realized overall material balance substantially.Like this, eliminate this major hazard source of Tailings Dam fully, realized the exploration without waster in mine.
4,, by after the filling to underground goaf, effectively reduce the destruction to earth's surface, avoided the generation of geological disaster, realized Green Mine, harmonious development.Be mainly to reach national requirements for environmental protection, do not produce secondary harm;
5, reduced filling cost, this has realistic meaning for promote the use of filling method in the enterprise of mid low grade phosphate rock mountain.
The present invention is the concrete application of application number 201210008744.9 " casting resin oar of a kind of method of mining by the way of filling and preparation method thereof ", is applicable to method of mining by the way of filling mining, low-grade phosphorus ore mountain in being particularly useful for.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment:
Enforcement in the urn good fortune Da Tang of group ore deposit section:
The occurrence condition of ore body: ore body average thickness: 30 meters; Inclination angle 70-90 degree, rock consolidating coefficient 6-8, country rock be take dolomite as main, rock consolidating coefficient 8-12, ore average grade 22%, 1,500,000 ton/years of mine capacities;
(1), mineral building is prepared: mining methods are " VCR " method and " separative production and separative delivery mining codes ",, according to the requirement of mining codes, adopt every four mineral buildings, the mode of a mineral building of exploitation is exploited, wherein the stope size of " VCR " method is: long for the ore body horizontal breadth, wide 15 meters, high 70 meters; " separative production and separative delivery mining codes " stope size is: long 40 meters, wide is the ore body horizontal breadth, and stage casing is high 70 meters, and segmentation is high 18 meters, and ore pillar is wide is 8 meters;
(2), the mineral building filling is prepared: will form 25000 meters of 45 meters to 120 meters, interval after the mineral building exploitation
3With 30000 meters
3Mined area; Mineral building has been adopted the plank shutoff of the rear route of ore removal to polycrystalline substance, reserves the deep water hole, and mined area starts filling after soakaway trench is installed;
(3), filling is prepared:
Build the ore dressing plant of processing one year 3500000 tons of abilities of raw ore for seven kilometers apart from mine, have between mine and selected scenes
Belt porch transportation ore; Milltailings is dense is 20%; Mode by press filtration with the milltailings of 20% concentration dense be the high-concentration tailings of concentration more than 65%, the water of separation is back to beneficiation flowsheet;
Again by pipeline with the dense casting resin oar preparation station that is transported to mine cave mouth for the above mine tailing of concentration 65%, stand in the preparation of casting resin oar, press each material formula by weight by mixing plant: cement: Ultramicro-powder=0.8～0.3:0.2～0.7; Aggregate-to-cement ratio is 4～12; Debris is the particle less than 2cm, and debris is unfixing with the ratio of mine tailing, is prepared into concentration and is equal to or greater than 70% casting resin oar; Be pressurized to the ready sky mineral building of adopting by pipeline and carry out consolidated fill;
Non cemented filling only with mine tailing and the direct filling of barren rock of digging up mine in adopting the sky mineral building;
(4), back production and mineral building filling:
Mined area starts filling after soakaway trench is installed, polycrystalline substance partly carries out the high strength filling with the casting resin oar that aggregate-to-cement ratio is 4, and each packed height can not, greater than 60 centimeters, be carried out the mineral building filling subsequently, be 10～12 casting resin oar low-intensity filling with aggregate-to-cement ratio, until complete dead zone of filling; After obturation reaches and solidifies requirement, then every four mineral buildings, to exploiting adjacent next mineral building back production and filling;
The adjacent mines room adopts staggered the carrying out of cementing mode with Non cemented filling;
Stage casing mainstay on starting to reclaim after mineral building exploitation in whole stage casing finishes, casting resin oar at the aggregate-to-cement ratio 4 that mainstay dead zone part is adopted carries out the high strength filling, sprayed mortar knot top is adopted on the knot top of obturation, for strengthening the stability of obturation, in high strength obturation part, the split anchor pole of constructing is in advance strengthened obturation and roof and floor to connect;
(5), the management after filling:
In the process of carrying out filling, the cemented filling material oar of different proportion is prepared the pressure testing standard component, after meeting, final setting time carries out pressure testing check intensity, every day fill area is patrolled and examined and is made a report on simultaneously patrol record;
The water that obturation is oozed out, carries out after corresponding physical chemistry is processed discharging according to result of laboratory test after sample examination to shaft bottom special use sump by the pipeline centralized recovery;
Set up surface displacement deformation monitoring management system, grasp at any time the earth's surface situation of change, with this, instruct and adjust underground filling work.
Claims (1)
1. a mining cementing and Non cemented filling mining methods afterwards, its feature comprises:
(1), mineral building is prepared:, according to the requirement of mining codes, adopt every four mineral buildings, the mode of a mineral building of exploitation is exploited;
(2), the mineral building filling is prepared: will form 25000 meters of 45 meters to 120 meters, interval after the mineral building exploitation
3With 30000 meters
3Mined area, mineral building has been adopted the plank shutoff of the rear route of ore removal to polycrystalline substance, reserves the deep water hole, mined area starts filling after soakaway trench is installed;
(3), filling is prepared:
The aggregate that mine tailing, cement, Ultramicro-powder and mining barren rock are made is prepared into the casting resin oar that is equal to or greater than 70% concentration and pressurizes by pipeline or flow automatically to the ready sky mineral building of adopting and carry out consolidated fill, that is:
By press filtration or deeply to bore dense mode dense for the high-concentration tailings of concentration more than 65% with the milltailings of 20% concentration, the water of separation is back to beneficiation flowsheet;
Again by pipeline with the dense casting resin oar preparation station that is transported to mine cave mouth for the above mine tailing of concentration 65%, stand in the preparation of casting resin oar, press each material formula by weight by mixing plant: cement: Ultramicro-powder=0.8～0.3:0.2～0.7; Aggregate-to-cement ratio is 4～12; Debris is the particle less than 2cm, and debris is unfixing with the ratio of mine tailing, is prepared into concentration and is equal to or greater than 70% casting resin oar; Pressurize or flow automatically to the ready sky mineral building of adopting by pipeline and carry out consolidated fill;
Non cemented filling only is the high-concentration tailings more than 65% and less than the particle of 2cm, digs up mine the direct filling of barren rock in adopting the sky mineral building with dense;
(4), back production and mineral building filling:
Mined area starts filling after soakaway trench is installed, polycrystalline substance partly carries out the high strength filling with the casting resin oar that aggregate-to-cement ratio is 4, and each packed height can not, greater than 60cm, be carried out the mineral building filling subsequently, be 10～12 casting resin oar low-intensity filling with aggregate-to-cement ratio, until complete dead zone of filling; After obturation reaches and solidifies requirement, then every four mineral buildings, to exploiting adjacent next mineral building back production and filling;
The adjacent mines room adopts staggered the carrying out of cementing mode with Non cemented filling;
Stage casing foundation on starting to reclaim after mineral building exploitation in whole stage casing finishes, casting resin oar at the aggregate-to-cement ratio 4 that foundation dead zone part is adopted carries out the high strength filling, sprayed mortar knot top is adopted on the knot top of obturation, wherein for strengthening the stability of obturation, in high strength obturation part, the split anchor pole of constructing is in advance strengthened obturation and roof and floor to connect;
(5), the management after filling:
In the process of carrying out filling, the cemented filling material oar of different proportion is prepared the pressure testing standard component, after meeting, final setting time carries out pressure testing check intensity, every day fill area is patrolled and examined and is made a report on simultaneously patrol record;
The water that obturation is oozed out, carries out after corresponding physical chemistry is processed discharging according to result of laboratory test after sample examination to shaft bottom special use sump by the pipeline centralized recovery;
Set up surface displacement deformation monitoring management system, grasp at any time the earth's surface situation of change, with this, instruct and adjust underground filling work.
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| CN2012100257844A CN102562068B (en) | 2012-02-07 | 2012-02-07 | Mine subsequent cemented and non-cemented filling mining method |
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| CN2012100257844A CN102562068B (en) | 2012-02-07 | 2012-02-07 | Mine subsequent cemented and non-cemented filling mining method |
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| CN103643992B (en) * | 2013-12-10 | 2016-04-13 | 中国恩菲工程技术有限公司 | Mining placement method |
| CN104314613B (en) * | 2014-08-26 | 2016-06-01 | 中煤科工集团重庆研究院有限公司 | The method of chemistry grouting filling colliery caving place |
| CN105041318B (en) * | 2015-08-07 | 2017-11-28 | 辽宁科技大学 | A kind of closed barnyard mining afterwards filling method |
| CN105777014B (en) * | 2016-03-30 | 2017-12-12 | 武汉工程大学 | A kind of high pumping phosphate mine packing material and preparation method thereof |
| CN106014477A (en) * | 2016-06-15 | 2016-10-12 | 山东华联矿业股份有限公司 | Stable filler filling method |
| CN107500634A (en) * | 2017-10-13 | 2017-12-22 | 中南大学 | A kind of application of cemented filling material containing polypropylene fibre in mining with stowing |
| CN111088979B (en) * | 2019-12-03 | 2021-05-04 | 南华大学 | Downward access filling mining method |
| WO2024082011A1 (en) * | 2022-10-19 | 2024-04-25 | Gazmick Pty Ltd | Method of mining in underground mines including disposal of tailings |
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|---|---|---|---|---|
| US6322292B1 (en) * | 1997-01-29 | 2001-11-27 | Lloyd P. Zenari | Backfilling underground voids |
| RU2213868C1 (en) * | 2002-06-19 | 2003-10-10 | Михайлов Юрий Васильевич | Method of mining with filling of permafrost mineral deposits |
| CN101818643A (en) * | 2010-05-18 | 2010-09-01 | 中南大学 | Stepped non-pillar continuous filling mining method for deep well super high large breaking ore body panel |
| CN101858217A (en) * | 2010-05-18 | 2010-10-13 | 中南大学 | House pillar changeable panel upward demix filling mining method |
| CN102251773A (en) * | 2011-06-22 | 2011-11-23 | 大冶有色金属股份有限公司 | Route type upward horizontal layered filling mining method suitable for extremely complex ore body mining |
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2012
- 2012-02-07 CN CN2012100257844A patent/CN102562068B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322292B1 (en) * | 1997-01-29 | 2001-11-27 | Lloyd P. Zenari | Backfilling underground voids |
| RU2213868C1 (en) * | 2002-06-19 | 2003-10-10 | Михайлов Юрий Васильевич | Method of mining with filling of permafrost mineral deposits |
| CN101818643A (en) * | 2010-05-18 | 2010-09-01 | 中南大学 | Stepped non-pillar continuous filling mining method for deep well super high large breaking ore body panel |
| CN101858217A (en) * | 2010-05-18 | 2010-10-13 | 中南大学 | House pillar changeable panel upward demix filling mining method |
| CN102251773A (en) * | 2011-06-22 | 2011-11-23 | 大冶有色金属股份有限公司 | Route type upward horizontal layered filling mining method suitable for extremely complex ore body mining |
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