CN102434161A - Stepless cross pitch sectional continuous backfilling mining method of gently-inclined medium-thickness ore body - Google Patents
Stepless cross pitch sectional continuous backfilling mining method of gently-inclined medium-thickness ore body Download PDFInfo
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Abstract
The invention discloses a stepless cross pitch sectional continuous backfilling mining method of a gently-inclined medium-thickness ore body, which comprises the steps of exploiting, development, cutting, recovery and filling. By adopting a bottom-up retreating mining method and by using layered entries to conduct once-and-for-all retreating mining to the ore body on the two sides, the tunnel cutting construction is reduced, the development ratio is small and the process is simple; and by caving the ore body on the two sides at one time, the production efficiency is high, ore pillars are not left, tailings or gangues are used for filling, the recovery ratio is high, the environmental damage is small, the dressing tailings and the gangues produced in open air can be used and the geological disasters are reduced. By adopting the method, the ore recovery ratio can be improved, the ore dilution rate can be reduced and the discharge of ore wastes and the used land can be decreased.
Description
Technical field
The present invention relates to the mining technology, especially a kind of gently inclined medium thick orebody does not have the continuous afterwards filling mining method of stage across pitch itemize.
Background technology
The wall type vertical slicing method of mining by the way of filling in metallurgical industry publishing house mining handbook Volume Four the 20th chapter method of mining by the way of filling; Its weak point is: for the ore body of quarry body thickness between 4～12 meters; The rate of dilution is high, and the dead zone exposed area is bigger, and digging is than big; It is not high to connect the top degree, and process for stoping is complicated.
Summary of the invention
The objective of the invention is the deficiency to prior art, provide a kind of inclination angle between 6～20 °, thickness does not have the continuous afterwards filling mining method of stage across pitch itemize at 4～12 meters thick gently inclined medium thick orebodies.
Realize that technical scheme of the present invention is: gently inclined medium thick orebody does not have the continuous afterwards filling mining method of stage across pitch itemize and adopts retreat mining from bottom to top, comprises following steps:
1, developing: adopt the developing mode of main adit-ramp, arrange that along ore body Zigzag type trackless ramp arrives each layering gallery; Arrange that in the ore body end two return air inclined shafts communicate with each layering gallery; At each layered arrangement one power transformation chamber, sump, explosives magazine, maintenance chamber and safe life-saving chamber etc.
2, adopt standard: with the high division mining of 28.4 meters the oblique length sections of serving as stage casing, each stage casing arranges that along ore body two layering gallerys are to the ore body end; Nugget is divided into several itemizes along the trend of ore body, and per 2 itemizes do not stay studding, fore-set and foundation as a back production unit when back production, and work plane advances along the trend of nugget continuously;
3, cutting: development heading is arranged in the arteries and veins, tunnels along top board along the trend of ore body, every goes up a hill and ore loading chamber and last itemize development heading connect at a distance from cutting of 60～80 meters drivings, treats the good ventilation condition of formation after the filling.
4, back production: because the top board of ore is relatively stable, directly utilize the itemize development heading that the both sides ore body is carried out disposablely adopting thickly entirely during back production, at first accurate layering gallery is adopted in two of constructions in the back production unit; Treat two adopt accurate layering lane construction and finish after, to the processing of acting as a planted agent of layering gallery, guarantee the ore transport channel; After all the planted agent finishes, it is carried out consolidated fill at a last layering gallery, wait to reach certain intensity after; Beginning is constructed the 3rd along adhesive bond and is adopted accurate layering gallery; The processing of acting as a planted agent simultaneously, when the planted agent handled, between the disposable layout layering both sides big gun hole of ore; After treating that the planted agent forms traffic condition, implement explosion and carry out the disposable complete thick ore body of adopting; Ore removal adopts loader to cooperate the down-hole automobile after the rock drilling, whenever is provided with one at a distance from 60～80 meters and adorns the ore deposit point, utilizes dress ore deposit point to adorn the ore deposit operation; Move back when adopting the layering gallery, whenever at a distance from filling counterfort of 7～9 meters layouts, filling counterfort takes to build the mode of mould, utilizes the filling pipeline that it is carried out filling.
5, filling: filling mainly adopts tailings and barren rock to carry out filling, the retrusive filling from bottom to top of filling order; Filling pipe curb panel development roadway arrangement, in a back production unit on itemize development heading intermediate arrangement; Filling operation at first to carrying out consolidated fill after the last itemize top ore body mining in the back production unit, its objective is when itemize mining is gone up in control, stops that lower leaf pours in the itemize ore body because of the tailings or the barren rock of filling, increases the rate of dilution; Every in a back production unit simultaneously barricade is high 4 meters at a distance from vertical filling counterfort of 7～9 meters layouts, and filling counterfort takes to build the mode of mould, utilizes the filling pipeline that it is carried out consolidated fill, and the mould bottom increases by 2 square or circular spilled water holes; The filling counterfort purpose is to increase barren rock to stack natural repose angle, reduces the barnyard exposed area, reduces the rate of dilution; The filling of dead zone then is transported to itemize through the down-hole automobile with barren rock or tailings adopts accurate layering gallery and move back and adopt the end, utilize belt conveyor to be delivered directly to down in the itemize dead zone.
Tiltedly long 12.2 meters of above-mentioned itemizes move towards long 200～400 meters.
Above-mentioned rock drilling adopts 7655 hammer drill to carry out.
The length of side of above-mentioned spilled water hole or diameter are 200mm.
The present invention in recovery process, when utilizing the exploitation of original openstope method room-and-pillar method, cause digging than excessive, production efficiency is low, complex process, the rate of extraction are low, resources loss is big, and is serious to environmental disruption.Solution: utilize the layering gallery that the both sides ore body is carried out disposable moving back and adopt, reduce the cutting roadway construction, digging is than little, and technology is simple; Disposable avalanche both sides ore body, production efficiency is high, and pillar is not taked tailings or waste fill, and the rate of extraction is high, and is little to environmental disruption, and can beneficiation tailing and the open-air barren rock of producing be turned waste into wealth, and reduces geological disaster and produces.
The invention has the beneficial effects as follows: ore recovery ratio is improved in (1); (2) reduce ore dilution rate; (3) reduce the mine discharging wastes; (4) reduce expropriation of land.
Description of drawings
Fig. 1 is orebody mining sketch map of the present invention (an I-I direction);
Fig. 2 is II-II direction view (6～10 meters ore body);
Fig. 3 is II-II direction view (4～6 meters ore body);
Fig. 4 is IV-IV direction view (6～10 meters ore body);
Fig. 5 is IV-IV direction view (4～6 meters ore body);
Fig. 6 is wooden baffle plate sketch map;
Fig. 7 macrovoid graticule mesh sketch map;
Among the figure: 1 is the exploiting field ramp; 2 is barren rock or mine tailing charges; 3 is filling counterfort; 4 for adopting accurate layering gallery; 5 are the ventilation connecting taxiway; 6 is the macrovoid graticule mesh; 7 is permanent sump; 8 is spilled water hole; 9 is standard brick; 10 is iron wire or rattan.
The specific embodiment
No. 5 wells in ore deposit, mill do not have stage across pitch itemize afterwards filling mining method exploitation instance:
The urn good fortune phosphorus ore mill body of digging up mine in the ore deposit is marine sediment phosphorus ore mineral deposit, 4～12 meters of orebody thicknesses, and 6～14 ° at the slanting angle of ore body, immediate roof is first section (Zb of lamp shadow group
2-1) dolomite, containing siliceous agglomerate dolomite and silicalite, 16～20 meters of thickness, immediate bottom are generally the 3rd section (Zb of steep mountain a small bay in a river group
1-3) containing the white silicalite of collophane agglomerate, top board belongs to metastable rock stratum, and ore is nonflammable.
1, developing: adopt the developing mode of main adit-ramp, arrange that along ore body Zigzag type trackless ramp arrives each layering gallery; Arrange that in the ore body end two return air inclined shafts communicate with each layering gallery; At each layered arrangement one power transformation chamber, sump, explosives magazine, maintenance chamber and safe life-saving chamber;
2, adopt standard: with the high division mining of 28.4 meters the oblique length sections of serving as stage casing, each stage casing arranges that along ore body two layering gallerys are to the ore body end; Nugget is divided into several itemizes along the trend of ore body, and per 2 itemizes do not stay studding, fore-set and foundation as a back production unit when back production, and work plane advances along the trend of nugget continuously;
3, cutting: development heading is arranged in the arteries and veins, tunnels along top board along the trend of ore body, every goes up a hill and ore loading chamber and last itemize development heading connect at a distance from cutting of 80 meters drivings, treats the good ventilation condition of formation after the filling;
4, back production: at first accurate layering gallery 4 is adopted in 2 of constructions in the back production unit, treats that 2 are adopted after 4 constructions of accurate layering gallery finish, to the processing of acting as a planted agent of layering gallery; Guarantee the ore transport channel, after the whole planted agents of a last layering gallery finish, it is carried out consolidated fill; After waiting to reach certain intensity, beginning is constructed the 3rd along adhesive bond and is adopted accurate layering gallery 4, the processing of acting as a planted agent simultaneously; When the planted agent handles; The big gun hole of ore between the disposable layout layering both sides behind the formation traffic condition of waiting to act as a planted agent, is implemented explosion and is carried out the disposable complete thick ore body of adopting; Rock drilling adopts 7655 hammer drill to carry out, and ore removal adopts loader to cooperate the down-hole automobile, whenever is provided with one at a distance from 60 meters and adorns the ore deposit point, utilizes dress ore deposit point to adorn the ore deposit operation; Move back when adopting the layering gallery, whenever at a distance from filling counterfort 3 of 7 meters layouts, filling counterfort 3 takes to build the mode of mould, utilizes the filling pipeline that it is carried out filling;
5, filling: filling mainly adopts tailings and barren rock 2 to carry out filling, the retrusive filling from bottom to top of filling order; Filling pipe curb panel development roadway arrangement, in a back production unit on itemize development heading intermediate arrangement; At first to carrying out consolidated fill after the last itemize top ore body mining in the back production unit; Every in a back production unit simultaneously barricade is high 4 meters at a distance from vertical filling counterfort 3 of 7 meters layouts, and filling counterfort 3 takes to build the mode of mould, utilizes the filling pipeline that it is carried out consolidated fill, and the mould bottom increases the circular spilled water hole 8 of 2 diameter 200mm; The filling of dead zone then is transported to itemize through the down-hole automobile with barren rock and tailings 2 adopts accurate layering gallery and move back and adopt the end, utilize belt conveyor to be delivered directly to down in the itemize dead zone.
The technical-economic index of said method sees the following form:
Claims (4)
1. gently inclined medium thick orebody does not have the continuous afterwards filling mining method of stage across pitch itemize, and it adopts from bottom to top and retreats, and it is characterized in that it comprises following steps:
(1) developing: adopt the developing mode of main adit-ramp, arrange that along ore body Zigzag type trackless ramp arrives each layering gallery; Arrange that in the ore body end two return air inclined shafts communicate with each layering gallery; At each layered arrangement one power transformation chamber, sump, explosives magazine, maintenance chamber and safe life-saving chamber;
(2) adopt standard: with the high division mining of 28.4 meters the oblique length sections of serving as stage casing, each stage casing arranges that along ore body two layering gallerys are to the ore body end; Nugget is divided into several itemizes along the trend of ore body, and per 2 itemizes do not stay studding, fore-set and foundation as a back production unit when back production, and work plane advances along the trend of nugget continuously;
(3) cutting: development heading is arranged in the arteries and veins, tunnels along top board along the trend of ore body, every goes up a hill and ore loading chamber and last itemize development heading connect at a distance from cutting of 60～80 meters drivings, treats the good ventilation condition of formation after the filling;
(4) back production: at first accurate layering gallery (4) is adopted in 2 of constructions in the back production unit, treats that 2 are adopted after accurate layering gallery (4) construction finishes, to the processing of acting as a planted agent of layering gallery; Guarantee the ore transport channel, after the whole planted agents of a last layering gallery finish, it is carried out consolidated fill; After waiting to reach certain intensity, beginning is constructed the 3rd along adhesive bond and is adopted accurate layering gallery (4), the processing of acting as a planted agent simultaneously; When the planted agent handles; The big gun hole of ore between the disposable layout layering both sides behind the formation traffic condition of waiting to act as a planted agent, is implemented explosion and is carried out the disposable complete thick ore body of adopting; Ore removal adopts loader to cooperate the down-hole automobile after the rock drilling, whenever is provided with one at a distance from 60～80 meters and adorns the ore deposit point, utilizes dress ore deposit point to adorn the ore deposit operation; Move back when adopting the layering gallery, whenever at a distance from 7～9 meters layout filling counterforts (3), the mode that filling counterfort (3) takes to build mould utilizes the filling pipeline that it is carried out filling;
(5) filling: filling mainly adopts tailings and barren rock (2) to carry out filling, the retrusive filling from bottom to top of filling order; Filling pipe curb panel development roadway arrangement, in a back production unit on itemize development heading intermediate arrangement; At first to carrying out consolidated fill after the last itemize top ore body mining in the back production unit; In a back production unit, whenever arrange a vertical filling counterfort (3) simultaneously at a distance from 7～9 meters; Barricade is high 4 meters; The mode that filling counterfort (3) takes to build mould utilizes the filling pipeline that it is carried out consolidated fill, and the mould bottom increases by 2 square or circular spilled water holes (8); The filling of dead zone then is transported to itemize through the down-hole automobile with barren rock or tailings adopts accurate layering gallery and move back and adopt the end, utilize belt conveyor to be delivered directly to down in the itemize dead zone.
2. mining codes as claimed in claim 1 is characterized in that tiltedly long 12.2 meters of above-mentioned itemizes, move towards long 200～400 meters.
3. mining codes as claimed in claim 1 is characterized in that above-mentioned rock drilling adopts 7655 hammer drill to carry out.
4. mining codes as claimed in claim 1 is characterized in that the length of side of said spilled water hole or diameter are 200mm.
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| CN103075157A (en) * | 2013-02-18 | 2013-05-01 | 中南大学 | Advance roof-cutting bottom-free structural bench breaking continuous mining method for flat inclined ore body |
| CN103538815A (en) * | 2013-10-24 | 2014-01-29 | 云南永昌铅锌股份有限公司 | Slag gallery |
| CN103670418A (en) * | 2014-01-08 | 2014-03-26 | 大冶有色金属有限责任公司 | Back extraction method capable of improving technical indexes of gentle dip medium thick ore bodies |
| CN104141495A (en) * | 2014-07-25 | 2014-11-12 | 长沙有色冶金设计研究院有限公司 | Filling mining method for gently inclined medium-thickness phosphate ore body |
| CN104653224A (en) * | 2014-12-12 | 2015-05-27 | 河北联合大学 | Open pit tailing cemented filling treatment method |
| CN105587318A (en) * | 2016-01-22 | 2016-05-18 | 长沙有色冶金设计研究院有限公司 | Filling mining method for continuous backstoping of gently inclined parallel medium thick ore body group |
| CN106437838A (en) * | 2016-12-05 | 2017-02-22 | 广西大学 | Drawing and filling ores synchronous horizontal deep hole shrinkage method in the later stage after truck directly removing ores under polycrystalline substance |
| CN106869931A (en) * | 2017-02-14 | 2017-06-20 | 广西高峰矿业有限责任公司 | A kind of barren rock and cementing layering wedging mining with stowing technique and its structure |
| CN107304680A (en) * | 2017-08-18 | 2017-10-31 | 河南理工大学 | The recovery method of goaf rear planted agent filling under the conditions of girdle tight roof |
| CN107420103A (en) * | 2017-07-06 | 2017-12-01 | 中国煤炭科工集团太原研究院有限公司 | A kind of machine is adopted adopts the special thick solid potassium salt ore deposit recovery method being combined with big gun |
| CN111042817A (en) * | 2019-12-06 | 2020-04-21 | 长沙矿山研究院有限责任公司 | Partition cemented prop wall-cutting filling mining method |
| CN111734415A (en) * | 2020-06-02 | 2020-10-02 | 湖北兴发化工集团股份有限公司 | Flexible pressure relief filling method for deep gentle-inclined ore body |
| CN111852476A (en) * | 2020-07-21 | 2020-10-30 | 东北大学 | Deep gentle dip thin vein pillar-free continuous mining method |
| CN112267885A (en) * | 2020-11-16 | 2021-01-26 | 中国铝业股份有限公司 | Mining method for two-step strip-cutting stoping subsequent barren rock cemented filling |
| CN113062740A (en) * | 2021-04-08 | 2021-07-02 | 湖北三鑫金铜股份有限公司 | Pillar-free multi-directional ramp small layered filling mining method |
| CN115095324A (en) * | 2022-05-26 | 2022-09-23 | 锡矿山闪星锑业有限责任公司 | Efficient mining process with improved stope layout |
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| CN103075157A (en) * | 2013-02-18 | 2013-05-01 | 中南大学 | Advance roof-cutting bottom-free structural bench breaking continuous mining method for flat inclined ore body |
| CN103075157B (en) * | 2013-02-18 | 2014-09-10 | 中南大学 | Advance roof-cutting bottom-free structural bench breaking continuous mining method for flat inclined ore body |
| CN103538815A (en) * | 2013-10-24 | 2014-01-29 | 云南永昌铅锌股份有限公司 | Slag gallery |
| CN103670418A (en) * | 2014-01-08 | 2014-03-26 | 大冶有色金属有限责任公司 | Back extraction method capable of improving technical indexes of gentle dip medium thick ore bodies |
| CN103670418B (en) * | 2014-01-08 | 2016-01-20 | 大冶有色金属有限责任公司 | A kind of stoping method improving gently inclined medium thick orebody technical indicator |
| CN104141495A (en) * | 2014-07-25 | 2014-11-12 | 长沙有色冶金设计研究院有限公司 | Filling mining method for gently inclined medium-thickness phosphate ore body |
| CN104653224A (en) * | 2014-12-12 | 2015-05-27 | 河北联合大学 | Open pit tailing cemented filling treatment method |
| CN105587318B (en) * | 2016-01-22 | 2017-07-25 | 长沙有色冶金设计研究院有限公司 | A kind of method of mining by the way of filling of the parallel middle thickness orebody group continuous stoping of low-angle dip |
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| CN107304680A (en) * | 2017-08-18 | 2017-10-31 | 河南理工大学 | The recovery method of goaf rear planted agent filling under the conditions of girdle tight roof |
| CN111042817A (en) * | 2019-12-06 | 2020-04-21 | 长沙矿山研究院有限责任公司 | Partition cemented prop wall-cutting filling mining method |
| CN111734415A (en) * | 2020-06-02 | 2020-10-02 | 湖北兴发化工集团股份有限公司 | Flexible pressure relief filling method for deep gentle-inclined ore body |
| CN111734415B (en) * | 2020-06-02 | 2022-06-21 | 湖北兴发化工集团股份有限公司 | Flexible pressure relief filling method for deep gently inclined ore body |
| CN111852476A (en) * | 2020-07-21 | 2020-10-30 | 东北大学 | Deep gentle dip thin vein pillar-free continuous mining method |
| CN112267885A (en) * | 2020-11-16 | 2021-01-26 | 中国铝业股份有限公司 | Mining method for two-step strip-cutting stoping subsequent barren rock cemented filling |
| CN113062740A (en) * | 2021-04-08 | 2021-07-02 | 湖北三鑫金铜股份有限公司 | Pillar-free multi-directional ramp small layered filling mining method |
| CN113062740B (en) * | 2021-04-08 | 2024-05-10 | 湖北三鑫金铜股份有限公司 | Small layered filling mining method for multi-directional ramp without ore pillar |
| CN115095324A (en) * | 2022-05-26 | 2022-09-23 | 锡矿山闪星锑业有限责任公司 | Efficient mining process with improved stope layout |
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Application publication date: 20120502 |