CN103603665B - Upper dish side ore body stoping method in the scope of adopting of mine - Google Patents
Upper dish side ore body stoping method in the scope of adopting of mine Download PDFInfo
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Abstract
The present invention relates to mining technique field, specifically upper dish side ore body stoping method in the scope of adopting of a kind of mine.At present, there is the unity of opposites contradiction between efficiency, cost, safety, dilution, loss in the recovery process of Ultra-low-grade magnetite.The present invention utilizes the existing Development system in mine, carries out adopting cutting work arrangement, and rib is divided into some square or circular ore pillars, these ore pillars will not reclaim, and as permanent loss, makes Two step mining become single stage back production.The present invention has the advantage that the large and filling method of room-and-pillar method production capacity is pressed with effectively controlling concurrently.The present invention is applicable to: a, thickness are greater than gentle dip or the inclination big thick ore body of more than 8m; B, ground do not allow to subside, and need strict protection earth's surface; Do not allow the geological conditions of the displacement that overlying rock avalanche is even large; C, the production scale that requirement is larger; D, ore are worth lower or grade is relatively low, need avoid two step rib pillar stopings.
Description
Technical field
The present invention relates to mining technique field, upper dish side ore body stoping method in the scope of adopting of a kind of mine specifically, be applicable to after the mother-lode back production of lower wall side terminates, existing development haulage system, supporting role by lower wall ore body delay filling body are utilized to ore body in the scope of adopting of upper dish side, arrange and suitable adopt cut journey, realize the recycling to Hanging orebody, make the safe and efficient mining methods that the resource in the scope of adopting is fully used.
Background technology
Under current Mining technology condition, after the ore body back production of lower wall side, in the certain limit of upper dish side, define inbreak, crack, metaboly by mining influence, make the ore body in the scope of adopting be difficult to exploitation.Along with the expansion of mineral resource utilization scope and the development of mining technique, some poor values even country rock are provided with certain exploitation value.And these potential resource majorities are all positioned at the scope of adopting of former industry ore body.Mineral resources safely and efficiently in the back production scope of adopting just become one of problem of mining technique forward position research.
Summary of the invention
The object of this invention is to provide upper dish side ore body stoping method in the scope of adopting of a kind of mine, for: a, thickness are greater than gentle dip or the inclination big thick ore body of 8m; B, ground do not allow to subside, and need strict protection earth's surface.Do not allow the displacement that overlying rock avalanche is even large, as mining, scenic spot mining condition under mining under the water bodys such as beach, lake, rivers, mining under euildings, the main line of communication; C, the production scale that requirement is larger; D, ore are worth lower or grade is relatively low, avoids two step rib pillar stopings.Be applicable to after the mother-lode back production of lower wall side terminates, existing development haulage system, supporting role by lower wall ore body delay filling body are utilized to ore body in the scope of adopting of upper dish side, arrange and suitable adopt cut journey, realize the recycling to Hanging orebody;
Technical scheme of the present invention is: adopt in scope ore body in upper dish side, along orebody trend in stage casing along the pulse transportation roadway top arrange segmentation stope connecting taxiway, as ore removal passage, stope capwise is arranged, from stope connecting taxiway to ore body dish and lower wall back production, length is 60m, and wide is ore body horizontal breadth, is highly miding level height 45m; Eight mineral buildings arranged by each stope, and width is 5m; The wide 2m of bar post, long is orebody thickness; Fore-set height 6m, post of not keeping on file;
Adopt accurate engineering and have stage casing transportation roadway, segmentation along the pulse connection roadway, ore pass, segmentation stope connecting taxiway, ventilation sluicing courtyard, upper dish side ore body back production passage along the pulse; Utilize on the stage casing of existing back production industry mother-lode and coil haulage drift, every 60m, across pitch arranges that a drop shaft and a pedestrian are ventilated sluicing courtyard, meets ore drawing in stope and pedestrian, ventilation needs; Segmentation along the pulse connection roadway and back production industry mother-lode segmentation along the pulse connection roadway share; This segmentation along the pulse connecting taxiway is arranged in outside the lower wall arteries and veins of industrial mother-lode, is communicated with upper and lower stage casing by exploiting field ramp, in studding reserved after industrial mother-lode back production from segmentation along the pulse connecting taxiway coil side ore body back production passage to ore body driving; By all comparatively stable position construction return air filling sluicing courtyard of Pan Kuangyan on ore body in mineral building, bottom is used as drainage sump, and top is used as return air, fill pass, and exports as Stope safty;
Adopt after cutting engineering construction and carry out mineral building mining, rock drilling adopts jumbo cutter horizontal shallow hole, hole depth 3.8 ~ 4.0m, and first mining room to paste on ore body the drawing back of dish capwise along the pulse to stope border from undercuting; Can the back production simultaneously of multiple mineral building in stope, also can move back simultaneously and adopt by several routes in a mineral building; Slicing height 2m; Each segmentation divides 6 layers of back production; After all routes or part drift stoping terminate in a mineral building, packing job can be carried out.
Further, described packing job refers to that first closed good mineral building and service channel joint export, and filling pipe is transferred in mineral building by filling return air raise, carries out continuous filling; Mineral building control heights of roofs 3m, actual mining terminates rear filling 2m, and casting resin adopts ore dressing plant classified tailings, adopt hydraulic filling 1.5m bottom mineral building, top surface layer needs consolidated fill 0.5m, and intensity is greater than 2MPa, the solid material of tailings glue: tailings is 1:8, and tailings concentration is 65 ~ 70%; 1m space is reserved in each filling.
Advantage of the present invention adopts ore body in the scope of adopting of filling method mining exploitation upper dish side, takes full advantage of Low grade resource, achieves the resource of country rock and exploit natural resources and the benign cycle of ecological environment.Achieve the underground mining to upper dish side Low grade resource, economic benefit and social benefit remarkable.The present invention has the advantage that the large and filling method of room-and-pillar method production capacity is pressed with effectively controlling concurrently.
Accompanying drawing explanation
Fig. 1 is standard nugget figure of the present invention;
Fig. 2 is Fig. 1 II-II view;
Fig. 3 is III-III view of Fig. 1.
In figure:
1-stage casing transportation roadway along the pulse, 2-wears arteries and veins transportation roadway, 3-segmentation connection roadway along the pulse, 4-segmentation stope connecting taxiway, 5-extracting drift, 6-ramp, 7-ore pass, 8-is drop shaft by the way, 9-ventilation sluicing courtyard, mother-lode goaf, 10-lower wall side, 11-upper dish side ore body back production passage, 12-reserves bar shaped studding, and transportation roadway is coiled in stage casing to 13-, 14-upper dish side ore body.
Detailed description of the invention
The present invention mainly for: 1, thickness is greater than gentle dip or the inclination big thick ore body of more than 8m; 2, ground does not allow to subside, and needs strict protection earth's surface.Do not allow the displacement that overlying rock avalanche is even large, as conditions such as mining, scenic spot mining under mining, mining under euildings, the main line of communication under the water bodys such as beach, lake, rivers; 3, larger production scale is required; 4, ore is worth lower or grade is relatively low, avoids two step rib pillar stopings.Be applicable to after the mother-lode back production of lower wall side terminates, existing development haulage system, supporting role by lower wall ore body delay filling body are utilized to ore body in the scope of adopting of upper dish side, arrange and suitable adopt cut journey, realize the recycling to Hanging orebody;
First determine safe top board exposed area by analytical calculation, and determine bar column dimension and block structure parameter; Transportation roadway 1 and ramp 6 along the pulse in construction stage casing, ore body bottom, and coil transportation roadway 13 from stage casing toward segmentation stope connecting taxiway 4 construction ventilation sluicing courtyard 9 and ore pass 7; After ramp is through, construction segmentation connection roadway 3 along the pulse; Wearing after arteries and veins transportation roadway 2 construction puts in place, construction ore pass 7 and by the way drop shaft 8; Behind ventilation sluicing courtyard position, start construction ventilation sluicing courtyard 9 at segmentation stope connecting taxiway 4 and extracting drift 5 construction, first form ventilation system;
Adopt after cutting engineering construction and carry out mineral building mining, extracting drift 5 rock drilling adopts Boomer 281 jumbo cutter horizontal shallow hole, hole depth 4.0m, aperture φ 45mm, and ore removal lumpiness controls at 500 × 500 below mm; Explosion adopts pin ammonium grain powder, explosive loader powder charge, nonel tube millisecond detonating; After explosion is ventilated, adopt 1.5m
3scraper mechanical shovel ore deposit, through route, segmentation stope connection roadway, pours into ore in direct route drop shaft; Transport stage casing uses the means of transportation of ZK10-6/250 stringing formula rail electric locomotive traction side bottom dumping car, mine car is transportation roadway 1 and wear arteries and veins transportation roadway 2 and enter and to wear in arteries and veins dress ore deposit, drop shaft bottom by the way along the pulse through stage casing, coils transportation roadway 13 ore is transported to stage casing discharge point carries out unloading ore deposit after dress ore deposit from stage casing; Each transport stage casing is equipped with ore, barren rock discharge point, then after crushing system is slightly broken, loads main shaft skip hoisting to earth's surface ore storage bin, is finally transported to ore dressing plant by belt.
After described back production terminates, can carry out packing job, packing job refers to that first closed good mineral building and service channel joint export, and filling pipe is transferred in mineral building by filling return air raise, carries out continuous filling; Mineral building control heights of roofs 3m, actual mining terminates rear filling 2m, and casting resin adopts ore dressing plant classified tailings, adopt hydraulic filling 1.5m bottom mineral building, top surface layer needs consolidated fill 0.5m, and intensity is greater than 2MPa, the solid material of tailings glue: tailings is 1:8, and tailings concentration is 65 ~ 70%; 1m space is reserved in each filling.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (3)
1. a upper dish side ore body stoping method in the scope of adopting of mine, for: a, thickness are greater than gentle dip or the inclination big thick ore body of 8m; B, ground do not allow to subside, and need strict protection earth's surface; Do not allow the displacement that overlying rock avalanche is even large; C, the production scale that requirement is larger; D, ore are worth lower or grade is relatively low, avoids two step rib pillar stopings; Be applicable to after the mother-lode back production of lower wall side terminates, existing development haulage system, supporting role by lower wall ore body delay filling body are utilized to ore body in the scope of adopting of upper dish side, arrange and suitable adopt cut journey, realize the recycling to Hanging orebody;
It is characterized in that: adopt in scope ore body in upper dish side, along orebody trend in stage casing along the pulse transportation roadway top arrange segmentation stope connecting taxiway, as ore removal passage, stope capwise is arranged, from stope connecting taxiway to ore body dish and lower wall back production, length is 60m, and wide is ore body horizontal breadth, is highly miding level height 45m; Eight mineral buildings arranged by each stope, and width is 5m; The wide 2m of bar post, long is orebody thickness; Fore-set height 6m, post of not keeping on file;
Adopt accurate engineering and have stage casing transportation roadway, segmentation along the pulse connection roadway, ore pass, segmentation stope connecting taxiway, ventilation sluicing courtyard, upper dish side ore body back production passage along the pulse; Utilize on the stage casing of existing back production industry mother-lode and coil haulage drift, every 60m, across pitch arranges that a drop shaft and a pedestrian are ventilated sluicing courtyard, meets ore drawing in stope and pedestrian, ventilation needs; Segmentation along the pulse connection roadway and back production industry mother-lode segmentation along the pulse connection roadway share; This segmentation along the pulse connecting taxiway is arranged in outside the lower wall arteries and veins of industrial mother-lode, is communicated with upper and lower stage casing by exploiting field ramp, in studding reserved after industrial mother-lode back production from segmentation along the pulse connecting taxiway coil side ore body back production passage to ore body driving; By all comparatively stable position construction return air filling sluicing courtyard of Pan Kuangyan on ore body in mineral building, bottom is used as drainage sump, and top is used as return air, fill pass, and exports as Stope safty;
Adopt after cutting engineering construction and carry out mineral building mining, rock drilling adopts jumbo cutter horizontal shallow hole, hole depth 3.8 ~ 4.0m, and first mining room to paste on ore body the drawing back of dish capwise along the pulse to stope border from undercuting; Can the back production simultaneously of multiple mineral building in stope, also can move back simultaneously and adopt by several routes in a mineral building; Slicing height 2m; Each segmentation divides 6 layers of back production; After all routes or part drift stoping terminate in a mineral building, packing job can be carried out.
2. upper dish side ore body stoping method in the scope of adopting of a kind of mine as claimed in claim 1, is characterized in that:
First determine safe top board exposed area by analytical calculation, and determine bar column dimension and block structure parameter; Transportation roadway (1) and ramp (6) along the pulse in construction stage casing, ore body bottom, and coil transportation roadway (13) from stage casing toward segmentation stope connecting taxiway (4) construction ventilation sluicing courtyard (9) and ore pass (7); After ramp is through, construction segmentation connection roadway (3) along the pulse; Wear arteries and veins transportation roadway (2) construction put in place after, construction ore pass (7) and direct route drop shaft (8); Behind ventilation sluicing courtyard position, start construction ventilation sluicing courtyard (9) at segmentation stope connecting taxiway (4) and extracting drift (5) construction, first form ventilation system;
Adopt after cutting engineering construction and carry out mineral building mining, extracting drift (5) rock drilling adopts jumbo cutter horizontal shallow hole, hole depth 4.0m, aperture φ 45mm, and ore removal lumpiness controls at 500 × 500 below mm; Explosion adopts pin ammonium grain powder, explosive loader powder charge, nonel tube millisecond detonating; After explosion is ventilated, adopt scraper mechanical shovel ore deposit, through route, segmentation stope connection roadway, ore is poured in direct route drop shaft; Transport stage casing uses the means of transportation of rail trolley locomotive traction side bottom dumping car, mine car is transportation roadway (1) and wear arteries and veins transportation roadway (2) and enter and to wear in arteries and veins dress ore deposit, drop shaft bottom by the way along the pulse through stage casing, coils transportation roadway (13) ore is transported to stage casing discharge point carries out unloading ore deposit after dress ore deposit from stage casing; Each transport stage casing is equipped with ore, barren rock discharge point, then after crushing system is slightly broken, loads main shaft skip hoisting to earth's surface ore storage bin, is finally transported to ore dressing plant by belt.
3. upper dish side ore body stoping method in the scope of adopting of a kind of mine as claimed in claim 1, it is characterized in that: described packing job refers to that first closed good mineral building and service channel joint export, filling pipe is transferred in mineral building by filling return air raise, carries out continuous filling; Mineral building control heights of roofs 3m, actual mining terminates rear filling 2m, and casting resin adopts ore dressing plant classified tailings, adopt hydraulic filling 1.5m bottom mineral building, top surface layer needs consolidated fill 0.5m, and intensity is greater than 2MPa, the solid material of tailings glue: tailings is 1:8, and tailings concentration is 65 ~ 70%; 1m space is reserved in each filling.
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| CN113482614B (en) * | 2021-07-20 | 2023-06-27 | 河南发恩德矿业有限公司 | Mining method for gently inclined extremely thin gold vein |
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