CN105649630A - Mining technology for gold ore - Google Patents

Mining technology for gold ore Download PDF

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Publication number
CN105649630A
CN105649630A CN201610044497.6A CN201610044497A CN105649630A CN 105649630 A CN105649630 A CN 105649630A CN 201610044497 A CN201610044497 A CN 201610044497A CN 105649630 A CN105649630 A CN 105649630A
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CN
China
Prior art keywords
stope
ore
mining technology
drift
stage casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610044497.6A
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Chinese (zh)
Inventor
游海滨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang Jinfeng Petrochemical Materials Trade Co Ltd
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Shenyang Jinfeng Petrochemical Materials Trade Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenyang Jinfeng Petrochemical Materials Trade Co Ltd filed Critical Shenyang Jinfeng Petrochemical Materials Trade Co Ltd
Priority to CN201610044497.6A priority Critical patent/CN105649630A/en
Publication of CN105649630A publication Critical patent/CN105649630A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21CMINING OR QUARRYING
    • E21C41/00Methods of underground or surface mining; Layouts therefor
    • E21C41/16Methods of underground mining; Layouts therefor
    • E21C41/22Methods of underground mining; Layouts therefor for ores, e.g. mining placers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00Setting anchoring-bolts
    • E21D20/003Machines for drilling anchor holes and setting anchor bolts
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/18Gravity flow ventilation
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00Methods or devices for placing filling-up materials in underground workings
    • E21F15/005Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material

Abstract

The invention provides a mining technology for gold ore. The mining technology comprises a parameter determining step, wherein various parameters of a stope are determined according to the vein trend of the stope; a stope preparation cutting step, wherein according to the parameters, a haulage roadway, a stope preparation raise, connection roadways, a footwalling and a funnel of the stope are arranged; a chamber backstoping step, wherein a shallow hole backstoping mode is adopted, and backstoping is conducted in a layered mode from a footwalling roadway from bottom to top; a pillar recovery step, wherein a deep hole blasting recovery mode is adopted, through the raise and the connection roadways, upholes are drilled, blasting is conducted, ore is discharged through the chamber funnel, half of pillar studs is recovered, and bottom pillars are not recovered and serve as permanent losses to support chamber top and bottom plates. The ore recovery rate of a mine lot can be increased, the permanent losses in the mine lot can be effectively reduced, and resource waste and economic losses are reduced.

Description

A kind of mining technology of gold mine
Technical field
The present invention relates to a kind of mining technology, the particularly mining technology of a kind of gold mine.
Background technology
At present for the exploitation of gold mine, commonly used shallow hole shrinkage method is exploited, this recovery method has structure and production technology is simple, convenient management, available Ore deadweight ore drawing, adopt quasi-quantities little, the advantage that mining cost is told somebody what one's real intentions are, but in concrete practice, the most fatal shortcoming of shrinkage method is mining rate of extraction problem, the mineral building rate of extraction of shallow-hole shrinkage is 85% theoretically, and pillar recovery rate is 65%. In fact in practice, the mineral building rate of extraction does not reach far away, and ordinary circumstance is issued to 70% just more satisfactory, and pillar recovery rate is less than 50%. Major problem is that in the link of the big ore drawing of last procedure of shallow hole shrinkage method. The coal caving ratio average 60%��75% of the big ore drawing of shallow hole shrinkage method, the Ore under adopting in a large number stays formation permanent loss in minery, causes the huge wasting of resources and economic loss.
Based on problem above, a kind of environmental protection mining technology that can reduce raw material and energy resource consumption, become industry problem demanding prompt solution.
Summary of the invention
It is an object of the invention to provide the mining technology of a kind of gold mine, confirm step including parameter, determine the parameters of stope according to the run of stope; Adopt quasi-cutting step, according to described parameters, arrange the haulage drift of stope, adopt quasi-courtyard, connection roadway, undercut and funnel; Mineral building back production step, adopts the mode of shallow bore hole back production, is layered from bottom to top from the tunnel that undercuts and carries out; Pillar recovery step, adopts deep hole blasting back production mode, utilizes courtyard connecting taxiway, play rising borehole, explosion, and Ore is released through mineral building funnel, and ore pillar studding therein reclaims half, and foundation does not reclaim, and supports mineral building roof and floor as permanent loss.
As one embodiment of the present invention, described adopts in quasi-cutting step, slice drift is arranged on parallel ore bodies lower wall border, described slice drift is communicated with arteries and veins outslope road by ramp connecting taxiway, segmentation connection roadway connects stope and described slice drift, the outer ore removal crosscut of arteries and veins communicates with ore removal drop shaft, thus constitutes the outer trackless of lower wall arteries and veins and adopts Barebone.
As one embodiment of the present invention, described mineral building back production step adopts rock drill rock drilling, explosion, releases 1/3rd of Ore, and remaining described Ore is as the work platforms of back production rock drilling next time.
As one embodiment of the present invention, described pillar recovery step is after described pillar recovery step terminates, wouldn't ore drawing, in this, as work platforms to fore-set construct vertical parallel medium-length hole.
As one embodiment of the present invention, drift or scraper roadway construction is then relied on vertically to go up to fan shaped medium length hole for upper stage casing foundation.
As one embodiment of the present invention, it is pre-formed cutting groove in stope middle part, with this cutting groove for the scope of freedom explosion avalanche while of disposable to stage casing fore-set and upper stage casing foundation in stope.
As one embodiment of the present invention, described pillar recovery step be after the stope emptying of both sides with stope connecting taxiway for drilling drift, with goaf for the explosion scope of freedom, construction is upper to vertical fan shaped medium length hole, blasting in once-through avalanche recovery.
As one embodiment of the present invention, also having aeration step, new wind enters from vertical shaft, and through lower level haulage tunnel, ventilation pedestrain raise, connecting taxiway enters Stope face, and dirty wind returns to return aircourse, stage casing, top from courtyard, discharges earth's surface through ventilating shaft.
As one embodiment of the present invention, also there is refilling step, in demonstration less stable region, adopt avalanche roof rock or utilize barren rock to carry out goaf backfill.
As one embodiment of the present invention, also there is anchors step, select twisted steel anchor rod that top board is carried out supporting, it is prevented that top board slump.
The gold mine mining technology of the present invention is green, environmental protection, it is possible to effectively reducing noise and the dust pollution in mining area, improve the response rate of mining, ore pillar is partially recycled, effectively reduces the permanent loss in mining area, reduces the wasting of resources and economic loss.
Accompanying drawing explanation
Fig. 1 is the mining methods structural representation of the present invention
Wherein, description of reference numerals is as follows:
1 stage casing ore pass
2 return air raises
3 slice drifts
4 segmentation connection roadways
5 Ores
Detailed description of the invention
The present invention provides the mining technology of a kind of gold mine, confirms step including Stope Parameters, determines stope parameters according to the trend of stope mineral ore, stope across pitch length is 40-50m, and wide for ore body width, two ends set 5m studding, foundation 5m, fore-set 4m, stope height is level interval 50m;
Adopt quasi-cutting step, including according to above-mentioned parameters, arrange haulage drift, adopt quasi-courtyard, connecting taxiway, undercut and funnel etc. Concrete, slice drift 3 is arranged on parallel ore bodies lower wall border, each slice drift 3 is communicated with arteries and veins outslope road by ramp connecting taxiway, stope segmentation connection roadway 4 connects stope and each slice drift 3, the outer ore removal crosscut of arteries and veins communicates with stage casing ore removal drop shaft 1, constitute the outer trackless of lower wall arteries and veins and adopt Barebone, filling return air raise 2 tunnels as return air and filling passage along ore body in stope central authorities, the present invention adopts the ore removal system of segmentation connection roadway 4 and slice drift 3 and stage casing ore pass 1, and by vertical shaft and main ramp, Ore 5 is promoted to earth's surface. Design level haulage tunnel vein lower wall driving, then tunnels courtyard and upper stage casing haulage drift in arteries and veins in studding every 40m in level haulage tunnel and runs through. Must assure that stope both sides connecting taxiway has two or more to keep unimpeded at any time, pass in and out stope and ventilation needs meeting operating personnel.
Mineral building back production step, mineral building back production uses shallow bore hole back production, is layered from bottom to top from the tunnel that undercuts and carries out, and adopts rock drill rock drilling in mineral building back production step, fetch water flat or upward hole. Aperture 38mm, array pitch is 0.8m, hole depth 2.0m, blossom type cloth hole, rock dynamite explosion, and blasting cap and detonator are ignited.After Ore is broken under blast action, its space can expand about 40-60%, for the working space suitable to the offer of stope rock drilling, explosion and ventilation operation, release about 1/3rd work platformses being as back production rock drilling next time of Ore after every separate explosion, the effect supporting roof and floor can be played simultaneously.
Pillar recovery step, pillar recovery deep hole blasting back production, utilize courtyard connecting taxiway, beat rising borehole, concentrated charge, onepull, an ore caving, explosion Ore is released through mineral building funnel. For ensureing that mineral building roof and floor is stable, studding only reclaims half. When fore-set is recovered in stage casing gallery without retaining (do not affect ventilation, pedestrian, the back production of upper stage casing terminate, without Other Engineering), may be recovered. Fore-set is laid when reclaiming to boring, concentrated charge, onepull, an ore caving in the drive of upper stage casing, and explosion Ore is released through mineral building funnel. Foundation does not reclaim, as permanent loss to support mineral building roof and floor.
As the present invention one improves embodiment, in the present invention in pillar recovery step, for 3m stope fore-set and upper stage casing 4��5m foundation, wouldn't ore drawing after mineral building back production step terminates, in this, as work platforms to the fore-set vertical parallel medium-length hole of construction, upper stage casing foundation then relies on drift or scraper roadway construction vertically to go up to fan shaped medium length hole, then the cutting groove of an about 2m it is pre-formed in stope middle part, with this groove for the scope of freedom explosion avalanche while of disposable to stage casing fore-set and upper stage casing foundation in stope. And for the mineral building studding of 8��12m width, with stope connecting taxiway for drilling drift after the stope emptying of both sides, with goaf for the explosion scope of freedom, to vertical fan shaped medium length hole in construction, also blasting in once-through avalanche is reclaimed.
The mining technology of the gold mine of the present invention also includes aeration step, fresh distinguished and admirable from vertical shaft entrance, enter Stope face through lower level haulage tunnel, ventilation pedestrain raise, connecting taxiway, dirty wind returns to return aircourse, stage casing, top from courtyard, discharges earth's surface through ventilating shaft.
The present invention is for the process in goaf, depending on Rock Mass Stability situation. When rock is relatively firm, supporting with mineral building ore pillar, goaf is made without processing; When rock stability is poor, needs avalanche roof rock or utilize driving barren rock to carry out goaf backfill.
The present invention is directed to the schistosity structure of different surrounding rock, select twisted steel anchor rod, and in combinations with Anchor Agent for roof timbering, it is prevented that top board slump, effectively control dilution, decrease the phenomenon causing the Ore under adopting can not put out because bulk blocks funnel.
The present invention arranges scraper chamber in stope both sides, utilizes guide frame that Ore is harrowed top board place, and backbreaking and owing the problem of digging when solving mining improves the rate of extraction.
The shallow hole shrinkage method that the present invention recommends by design, ore pillar is partially recycled, must cut the feature of country rock during back production, in conjunction with the real data in domestic similar mine, selected mining loss ratio 10%, the rate of dilution 15%, total rate of extraction 90%.
The present invention provides a kind of safe and environment-friendly gold mine mining technology, can effectively reduce the permanent loss formed in mining area, reduces the wasting of resources and economic loss.
The present invention above embodiments describes the present invention, it is to be understood that, term used is to illustrate and exemplary and nonrestrictive term. The spirit without deviating from invention or essence can be embodied as in a variety of forms due to the present invention, it is to be understood that, above-described embodiment is not limited to any aforesaid details, and should explain widely in the spirit and scope that appended claims limit, therefore fall into the whole changes in claim or its equivalent scope and remodeling all should be appended claims and contained.

Claims (10)

1. a mining technology for gold mine, has steps of:
A), parameter confirm step, determine the parameters of stope according to the run of stope;
B), adopt quasi-cutting step, according to described parameters, arrange the haulage drift of stope, adopt quasi-courtyard, connection roadway, undercut and funnel;
C), mineral building back production step, adopt shallow bore hole back production mode, be layered from bottom to top from the tunnel that undercuts and carry out;
D), pillar recovery step, adopt deep hole blasting back production mode, utilize courtyard connecting taxiway, play rising borehole, explosion, Ore through mineral building funnel release, ore pillar studding therein reclaim half, foundation does not reclaim, as permanent loss support mineral building roof and floor.
2. mining technology according to claim 1, it is characterized in that: described adopts in quasi-cutting step, slice drift is arranged on parallel ore bodies lower wall border, described slice drift is communicated with arteries and veins outslope road by ramp connecting taxiway, segmentation connection roadway connects stope and described slice drift, the outer ore removal crosscut of arteries and veins communicates with ore removal drop shaft, thus constitutes the outer trackless of lower wall arteries and veins and adopts Barebone.
3. mining technology according to claim 1, it is characterised in that: described mineral building back production step adopts rock drill rock drilling, explosion, releases 1/3rd of Ore, and remaining described Ore is as the work platforms of back production rock drilling next time.
4. mining technology according to claim 1, it is characterised in that: described pillar recovery step is after described pillar recovery step terminates, wouldn't ore drawing, in this, as work platforms to fore-set construct vertical parallel medium-length hole.
5. mining technology according to claim 4, it is characterised in that: then rely on drift or scraper roadway construction vertically to go up to fan shaped medium length hole for upper stage casing foundation.
6. mining technology according to claim 5, it is characterised in that: it is pre-formed cutting groove in stope middle part, with this cutting groove for the scope of freedom explosion avalanche while of disposable to stage casing fore-set and upper stage casing foundation in stope.
7. mining technology according to claim 1, it is characterized in that: described pillar recovery step be after the stope emptying of both sides with stope connecting taxiway for drilling drift, with goaf for the explosion scope of freedom, to vertical fan shaped medium length hole in construction, blasting in once-through avalanche is reclaimed.
8. mining technology according to claim 1, it is characterised in that: also having aeration step, new wind enters from vertical shaft, through lower level haulage tunnel, ventilation pedestrain raise, connecting taxiway enters Stope face, dirty wind returns to return aircourse, stage casing, top from courtyard, discharges earth's surface through ventilating shaft.
9. mining technology according to claim 1, it is characterised in that: also there is refilling step, in demonstration less stable region, adopt avalanche roof rock or utilize barren rock to carry out goaf backfill.
10. mining technology according to claim 1, it is characterised in that: also there is anchors step, select twisted steel anchor rod that top board is carried out supporting, it is prevented that top board slump.
CN201610044497.6A 2016-01-22 2016-01-22 Mining technology for gold ore Pending CN105649630A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448202A (en) * 2017-08-18 2017-12-08 西北矿冶研究院 A kind of continuous exploitation method of suitable high-dipping breaking ore body
CN107587889A (en) * 2017-08-30 2018-01-16 玉溪大红山矿业有限公司 A kind of construction method worn arteries and veins cutting groove and cross chamber reinforcing bar open wiring mouth
CN107989614A (en) * 2017-12-06 2018-05-04 昆明冶金高等专科学校 The mining methods of the inclined thick ore body of disk rock crusher in a kind of back production
CN108222940A (en) * 2018-02-10 2018-06-29 广西华洋矿源材料有限公司 A kind of recovery method of manganese ore
CN108222939A (en) * 2018-02-10 2018-06-29 广西华洋矿源材料有限公司 A kind of recovery method of tin ore
CN108561135A (en) * 2018-03-01 2018-09-21 白银有色集团股份有限公司 A kind of mechanization stoping method of the suitable unstable middle thickness orebody of low-angle dip country rock
CN108590659A (en) * 2018-04-13 2018-09-28 武汉理工大学 Rock drilling layering falls mine shrinkage mining method in a kind of arteries and veins
CN108843382A (en) * 2018-05-31 2018-11-20 西北矿冶研究院 A kind of suitable unstable middle thickness orebody of low-angle dip country rock it is lower to afterwards filling method
CN109184695A (en) * 2018-09-20 2019-01-11 陕西太白黄金矿业有限责任公司 A kind of gold mine mining technology
CN110029993A (en) * 2019-03-29 2019-07-19 铜陵有色金属集团铜冠矿山建设股份有限公司 A kind of construction method of the more middle section rapid construction large size cutting vertical-horizontal grooves in underground
CN110359912A (en) * 2019-07-23 2019-10-22 长沙矿山研究院有限责任公司 A kind of slicing and filling mining methods of the unsteady peak abutment of exploitated ore country rock

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448202A (en) * 2017-08-18 2017-12-08 西北矿冶研究院 A kind of continuous exploitation method of suitable high-dipping breaking ore body
CN107587889B (en) * 2017-08-30 2019-03-19 玉溪大红山矿业有限公司 A kind of construction method worn arteries and veins cutting groove and cross chamber reinforcing bar open wiring mouth
CN107587889A (en) * 2017-08-30 2018-01-16 玉溪大红山矿业有限公司 A kind of construction method worn arteries and veins cutting groove and cross chamber reinforcing bar open wiring mouth
CN107989614A (en) * 2017-12-06 2018-05-04 昆明冶金高等专科学校 The mining methods of the inclined thick ore body of disk rock crusher in a kind of back production
CN108222940A (en) * 2018-02-10 2018-06-29 广西华洋矿源材料有限公司 A kind of recovery method of manganese ore
CN108222939A (en) * 2018-02-10 2018-06-29 广西华洋矿源材料有限公司 A kind of recovery method of tin ore
CN108561135A (en) * 2018-03-01 2018-09-21 白银有色集团股份有限公司 A kind of mechanization stoping method of the suitable unstable middle thickness orebody of low-angle dip country rock
CN108561135B (en) * 2018-03-01 2019-10-18 白银有色集团股份有限公司 A kind of mechanization stoping method of the suitable unstable middle thickness orebody of low-angle dip country rock
CN108590659A (en) * 2018-04-13 2018-09-28 武汉理工大学 Rock drilling layering falls mine shrinkage mining method in a kind of arteries and veins
CN108843382A (en) * 2018-05-31 2018-11-20 西北矿冶研究院 A kind of suitable unstable middle thickness orebody of low-angle dip country rock it is lower to afterwards filling method
CN109184695A (en) * 2018-09-20 2019-01-11 陕西太白黄金矿业有限责任公司 A kind of gold mine mining technology
CN109184695B (en) * 2018-09-20 2021-06-01 陕西太白黄金矿业有限责任公司 Gold mine mining process
CN110029993A (en) * 2019-03-29 2019-07-19 铜陵有色金属集团铜冠矿山建设股份有限公司 A kind of construction method of the more middle section rapid construction large size cutting vertical-horizontal grooves in underground
CN110359912A (en) * 2019-07-23 2019-10-22 长沙矿山研究院有限责任公司 A kind of slicing and filling mining methods of the unsteady peak abutment of exploitated ore country rock
CN110359912B (en) * 2019-07-23 2021-10-15 长沙矿山研究院有限责任公司 Layered filling mining method for mining triangular ore with unstable ore surrounding rocks

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