CN87100375A - Strip caving open stopping method and equipment - Google Patents
Strip caving open stopping method and equipment Download PDFInfo
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- CN87100375A CN87100375A CN87100375.9A CN87100375A CN87100375A CN 87100375 A CN87100375 A CN 87100375A CN 87100375 A CN87100375 A CN 87100375A CN 87100375 A CN87100375 A CN 87100375A
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Abstract
A kind of strip caving open stopping method and equipment belong to field of mining.Be applicable to that the face of land allows to subside, below 35 degree of inclination angle, the solid mineral deposit underground mining that thickness is 5 meters to 15 meters.It is characterized in that vertical orebody trend is divided into the ore deposit bar at a certain distance, pillar not in stope, rock drilling and ore removal be not or not the goaf, and barnyard bottom ore removal follows back production progressively to put item, for the end ore removal has designed a pinch formula mine car.These mining codes, ore loss ratio is not more than 10%, and the rate of dilution is no more than 10%, and class's ore removal ability can reach more than 250 tons, and ore extraction cost reduces by 20-30% than general mining methods.
Description
The invention belongs to field of mining.
The solid mineral deposit underground mining, with regard to gentle dip and partially suddenly, with regard to the ore body thick and bigger than normal, owing to be subjected to the restriction at thickness and inclination angle, the back production difficulty is bigger, though the method mainly used of the production mine in this class mineral deposit has both at home and abroad: room-and-pillar method, chassis funnel method and filling method, test shrink breasting method, quick-fried power carrying method in recent years again and cut top room-and-pillar method etc., but still it is narrow to exist accommodation to some extent, the depletion loss rate height, labor productivity is low, and safety condition is poor, the problem that cost of winning is high.
The objective of the invention is to the occurrence condition at above-mentioned ore body, provide a kind of applied widely, depletion loss rate is low, labor productivity height, handling safety, the mining methods that cost of winning is low.
The present invention has utilized the bottom-column-free sectional caving stoping method not structural shape of pillar and the characteristics of end ore removal, drawn and emitted the many strong points of pure ore under the barnyard, and consider some superiority of scarps filling mining method and design a kind of face of land that is used for and allow to subside, below 35 degree of inclination angle, the strip caving open stopping method of the solid mineral deposit underground mining that thickness is 5 meters to 15 meters.It is characterized in that vertical orebody trend is divided into the ore deposit bar at a certain distance, pillar not in stope, rock drilling and ore removal be not or not the goaf, and barnyard bottom ore removal is followed progressively caving of back production.
Divide the panel into along orebody trend in the stage, a panel length can reach 200～300 meters, arranges the back production simultaneously of several stopes in the panel, and stope is wide to be 40 to 60 meters, and slant height is 35 to 45 meters.
Arrange a People's Bank of China, ventilation, material installation courtyard at each stope of ore body lower wall, the back production connection roadway of going up a hill outside the ore body base plate draws back an arteries and veins again, arrange a stope slide ore deposit The Small Well for per 20 meters to 30 meters, back production 1 to 2 upper lower burrs cut-off that passes ore body of pick in the connection roadway of going up a hill outside arteries and veins, the rock drilling caving connection roadway of going up a hill is drawn back along dish on the ore body again in contact ore body upper lower burrs tunnel.By formula the requirement of (1) is in connection roadway is gone up a hill in the lower wall back production, vertical orebody trend every 6 meters to 8 meters outside ore body backplane arteries and veins back production go up a hill, according to ore be worth, the different of rich or poor and mining device determine the outer back production of the arteries and veins structural parameters of going up a hill, its design formulas is:
S＝〔 1/2 （L-b）+ (h)/(a) （ 1/(tgα) + 1/(tgβ) ）- (h)/(tgβ) 〕
2·tgβ-（1）
In the formula: the theoretical lost area of S-ore faces
The L-back production center to center distance of going up a hill
The b-back production base plate of going up a hill is wide
The h-back production base plate height of going up a hill
α-back production wall inclination angle, lane of going up a hill
β-go out rib angle
A-goes out the rib angle and plays dot factor
Go up a hill every 2 to 3 back production in ore body roof, correspondingly therebetween arrange that a rock drilling caving goes up a hill, according to ore deposit rock situation, can be in arteries and veins, also can be outside arteries and veins.When 1 to 2 step pitch balkstone of back production voluntarily during inbreak, top board does not arrange that the rock drilling caving goes up a hill, and rock drilling is gone up a hill in back production and carried out, but should be between back production be gone up a hill the interlaced arrangement service channel.
In the ore body roof rock drilling caving interior rock drilling of going up a hill, at the back production barnyard bottom ore removal of going up a hill, back production one by one, not pillar.With bringing-down downwards big gun hole, ore deposit and upwards cut a hole caving big gun hole of rock drilling apparatus of middle deep hole.Stoping space of ordinary circumstance onepull, first caving, the ore deposit that falls at random, quick-fried down ore is at corresponding two back production barnyard bottom ore removal of going up a hill, when the slanting angle of ore body is spent less than 15 with a pinch formula mine car, also available scraper ore removal; When spending greater than 15 with a pinch formula mine car, the also available common electrical ore deposit of raking off.When raking off the ore deposit, back production is gone up a hill connection roadway as laterally harrowing the road or establishing a directive wheel, ore is sent to stope slide ore deposit The Small Well with pinch formula mine car or common electrical.
The control top is the important process process in the back production, has whenever adopted a stoping space, first caving, Hou Luokuang, and caving volume and accumulation shape are pressed following design formulas:
A caving barren rock volume design formulas:
V
1＜V＜cV
1- （2）
In the formula: a caving barren rock of V-volume
V
1-ore removal volume
A caving barren rock of c-volume factor
After the caving, back production face barren rock is heaped design formulas before the ore deposit that falls:
ε
1＜ε＜Fε
1- （3）
In the formula: barren rock is heaped the angle after ε-caving
ε
1-ore natural repose angle
Hillock ascent after the F-caving
After the caving, barren rock and adjacent mines bar are heaped design formulas before the ore deposit that falls:
H＝〔 1/2 （L-b）+ (h)/(a) （ 1/(tgα) + 1/(tgβ) ）- (h)/(tgβ) 〕·tgβ+h-（4）
ε
1＜ε＜Fε
1
In the formula:
After the H-caving, the barren rock back production is gone up a hill base plate to the vertical height of barren rock inclined-plane starting point before the ore deposit that falls,
Other symbol is the same.
Stope ventilation is freshly distinguished and admirablely gone into stope through People's Bank of China, ventilation, material installation courtyard, arrives each work plane through cut-off, and a part of dirty wind enters the goaf, and it is overflowed gradually; The dirty wind of a part is regulated with local fan, enters standby going up a hill by connection roadway, flows into then to go up the big lane of return air, stage casing.
Scooping up the formula mine car is the capital equipment that goes out to design for end of the present invention, and ore removal when the suitable slanting angle of ore body is spent less than 15 degree or greater than 15 is characterized in that being made of a pinch shovel, front tension bar, car body, automatic opening-closing, back stay, wheel.Scoop up shovel and cast with manganese steel, car body is welded into general steel plate, and front tension bar, back stay and automatic opening-closing are made of straight carbon steel, and wheel is cylinder iron cast.Scoop up the formula mine car by the scraper winch pulling motion.
The present invention compared with prior art, it is characterized in that to be applicable to that the exploitation face of land allows to subside, below 35 degree of inclination angle, the solid mineral deposit underground mining that thickness is 5 meters to 15 meters, ore loss ratio is not more than 10%, the rate of dilution is no more than 10%, and class's ore removal ability can reach more than 250 tons, and ore extraction cost reduces by 20～30% than general mining methods.The invention solves stope ventilation and safety problem, and mining device flexibly, simple ore removal ability is big, exploration combination, and created condition for the continuous ore removal of mechanization both has been adapted to big ore deposit and has exploited, and also is applicable to middle-size and small-size mining.Can be used for ore body and country rock is more firm, mining conditions is ore body preferably, also can be used for ore body and unstable rock and ore body upper lower burrs border and change big ore body.
Itemize avalanche of the present invention field mining codes schematic diagram as shown in Figure 1.I among the figure-I transverse cross-sectional view; II-II longitudinal sectional drawing; 1-stage casing haulage way; 2-stope People's Bank of China, ventilation, material installation courtyard; The outer back production of the 3-arteries and veins connection roadway of going up a hill; 4-stope slide ore deposit The Small Well; 5-upper lower burrs tunnel cut-off; The 6-rock drilling caving connection roadway of going up a hill; The outer back production of 7-arteries and veins is gone up a hill; 8-rock drilling caving is gone up a hill; 9-winch pillbox chamber; The 10-big gun hole, ore deposit that falls; 11-caving big gun hole; The 12-ore body; The 13-ore; 14-avalanche barren rock.
Of the present invention pinch of formula mine car as shown in Figure 2.15-scoops up shovel among the figure; The 16-front tension bar; The 17-car body; 18-Hao automatic opening-closing; The 19-back stay; 20 wheels.
The embodiment of the invention, referring to Fig. 1, exploit ore be worth higher, about 10 meters of inclination angle 5 to 15 degree thickness, the uneasily mining orebody that upper lower burrs rock steadiness is relatively poor.
Divide the panel into along orebody trend in the stage, a panel length can reach 200-300 rice, arranges the back production simultaneously of several stopes in the panel.Stope is wide to be 42 meters, and slant height is 35 to 45 meters.Digging a section near ore body one side in ore body lower wall stage casing haulage way (1) is 2 * 2.5 meters, high 5 meters People's Bank of China, ventilate, material installation drive a well (2), drawing back section along the ore body base plate again is the back production connection roadway (3) of going up a hill outside 2.8 * 2.8 meters arteries and veins, arrange that a section is 2 * 2 meters for per 21 meters, high 5 meters slide ore deposit The Small Wells (4), back production two sections of pick of going up a hill in the connection roadway (3) are 2.5 * 2.5 for passing the upper lower burrs cut-off (5) of ore body outside arteries and veins, draw back the rock drilling caving connection roadway (6) of going up a hill along dish on the ore body again, the requirement of (1) by formula outside arteries and veins in the back production in the connection roadway (3) vertical orebody trend every 7 meters, back production go up a hill (7) outside the backplane section is 3.0 * 2.8 meters arteries and veins, wall angle 85 degree, in connection roadway (6) is gone up a hill in the rock drilling caving, is that 3.0 * 2.8 meters arteries and veins in rock drilling go into to push up go up a hill (8) every 14 meters with corresponding layout section in the middle of two back production are gone up a hill in ore body roof, when back production outside 4 to 6 arteries and veins of pick go up a hill and go up a hill with each self-corresponding 2 to 3 rock drilling caving and corresponding engineering after, just can the back production ore removal.
According to the value of this ore, convergence zero is answered in theoretical loss, goes out rib angle β=50 degree, draws rib angle starting point factor alpha ≈ 7.42 by formula (1), determines the position and the degree of depth in big gun hole, ore deposit (10) with this.According to formula (2), a caving barren rock volume V is an ore removal volume V
11.3 times; According to formula (3), after the caving of back production face, barren rock is heaped angle ε before the ore deposit that falls
11.5 times; According to formula (4), after the caving, barren rock and adjacent mines bar are gone up a hill base plate to 2.8 meters of the vertical high H=h ≈ of barren rock inclined-plane starting point from back production before the ore deposit that falls, and it is the same that barren rock is heaped angle ε.Caving big gun hole (11) is arranged in the requirement that is less than ore degree lumpiness according to formula (2), (3), (4) and caving barren rock lumpiness, with rock drilling apparatus of middle deep hole bringing-down ore deposit and caving big gun hole, and explosion two artillery salvo holes at every turn, 3 to 4 meters of stoping spaces.Fall the ore deposit that will fall in a flash at the caving barren rock, the ore under collapsing transports with a pinch formula mine car, and also available scraper transports, and presses the foregoing description, and ore loss ratio is no more than 6%, and the rate of dilution is no more than 10%, and kiloton is adopted and cut than 8 meters, and class's ore removal can reach 250 tons.
Claims (7)
1, a kind of face of land that is used for allows to subside, below 35 degree of inclination angle, the strip caving open stopping method of the solid mineral deposit underground mining that thickness is 5 meters to 15 meters, it is characterized in that vertical orebody trend is divided into the ore deposit bar at a certain distance, pillar not in stope, rock drilling and ore removal be not or not the goaf, and barnyard bottom ore removal is followed progressively caving of back production.
2, mining codes according to claim 1 is characterized in that vertical orebody trend every 6 meters to 8 meters, and back production is gone up a hill outside the backplane arteries and veins, are worth according to ore, and rich or poor and mining device different are determined the arteries and veins back production outward structural parameters of going up a hill, and its design formulas is:
S＝〔 1/2 （L-b）+ (h)/(a) （ 1/(tgα) + 1/(tgβ) ）- (h)/(tgβ) 〕
2·tgβ
3, according to claim 1 and 2 described mining codes, it is characterized in that going up a hill every 2 to 3 back production in ore body roof, correspondingly therebetween arrange that a rock drilling caving goes up a hill, according to ore deposit rock situation, can be in arteries and veins, also can be outside arteries and veins.
4, mining codes according to claim 1 is characterized in that in the ore body roof rock drilling caving interior rock drilling of going up a hill, at the back production barnyard bottom ore removal of going up a hill, back production one by one, not pillar.
5, mining codes according to claim 1 is characterized in that whenever having adopted a stoping space, first caving, Hou Luokuang, and caving volume and heap shape are pressed following design formulas:
A caving barren rock volume design formulas:
V
1＜V＜cV
1
After the caving, back production face barren rock is heaped the angle design formulas before the ore deposit that falls:
ε
1＜ε＜Fε
1
After the caving, barren rock and adjacent mines bar are heaped design formulas before the ore deposit that falls:
H＝〔 1/2 （L-b）+ (h)/(a) （ 1/(tgα) + 1/(tgβ) ）- (h)/(tgβ) 〕
2·tgβ+h
ε
1＜ε＜Fε
1
6, mining codes according to claim 1 is characterized in that the end ore removal mainly is to use a pinch formula mine car.
7, according to claim 6 pinch of formula mine car is characterized in that being made of pinch shovel (a 15) front tension bar (16), car body (17), automatic opening-closing (18), back stay (19) wheel (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100375 CN1008463B (en) | 1987-01-20 | 1987-01-20 | Strip caving open stopping method and plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87100375 CN1008463B (en) | 1987-01-20 | 1987-01-20 | Strip caving open stopping method and plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87100375A true CN87100375A (en) | 1987-07-15 |
| CN1008463B CN1008463B (en) | 1990-06-20 |
Family
ID=4812845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87100375 Expired CN1008463B (en) | 1987-01-20 | 1987-01-20 | Strip caving open stopping method and plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1008463B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003185A (en) * | 2010-11-05 | 2011-04-06 | 中蓝连海设计研究院 | Sublevel stripe tail salt stoping dry-type filling-mining method |
| CN101598031B (en) * | 2009-06-17 | 2011-09-21 | 山东黄金矿业(莱州)有限公司焦家金矿 | Mining method featuring backfilling waste rocks in situ and increasing ore recovery ratio |
| CN102536241A (en) * | 2012-01-18 | 2012-07-04 | 云南文山斗南锰业股份有限公司 | Tilting ore body stoping process |
| CN102587914A (en) * | 2012-03-19 | 2012-07-18 | 河南理工大学 | Strip-type Wongawilli mining method of coal buried under building |
| CN103590832A (en) * | 2013-11-27 | 2014-02-19 | 山东盛大矿业有限公司 | Pillar pre-isolation sublevel stick-filling mining method and ore body therefor |
| CN103603665A (en) * | 2013-10-25 | 2014-02-26 | 河北省矾山磷矿有限公司 | Hanging wall side orebody extracting method in mine mining range |
| CN104100269A (en) * | 2014-06-10 | 2014-10-15 | 湖北尧治河化工股份有限公司 | Method for improving recovery rate of thick, large and broken ore body under dangerous rock body |
| CN104847353A (en) * | 2014-11-30 | 2015-08-19 | 刘桂花 | Layered simultaneous production top coal caving coal mining method of steep dip coal seam group |
| CN108163582A (en) * | 2017-12-06 | 2018-06-15 | 长春黄金研究院 | A kind of mobile dress ore deposit platform and its dress ore deposit method |
-
1987
- 1987-01-20 CN CN 87100375 patent/CN1008463B/en not_active Expired
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598031B (en) * | 2009-06-17 | 2011-09-21 | 山东黄金矿业(莱州)有限公司焦家金矿 | Mining method featuring backfilling waste rocks in situ and increasing ore recovery ratio |
| CN102003185A (en) * | 2010-11-05 | 2011-04-06 | 中蓝连海设计研究院 | Sublevel stripe tail salt stoping dry-type filling-mining method |
| CN102003185B (en) * | 2010-11-05 | 2012-12-19 | 中蓝连海设计研究院 | Sublevel stripe tail salt stoping dry-type filling-mining method |
| CN102536241A (en) * | 2012-01-18 | 2012-07-04 | 云南文山斗南锰业股份有限公司 | Tilting ore body stoping process |
| CN102536241B (en) * | 2012-01-18 | 2014-06-18 | 云南文山斗南锰业股份有限公司 | Tilting ore body stoping process |
| CN102587914A (en) * | 2012-03-19 | 2012-07-18 | 河南理工大学 | Strip-type Wongawilli mining method of coal buried under building |
| CN103603665A (en) * | 2013-10-25 | 2014-02-26 | 河北省矾山磷矿有限公司 | Hanging wall side orebody extracting method in mine mining range |
| CN103603665B (en) * | 2013-10-25 | 2015-08-12 | 河北省矾山磷矿有限公司 | Upper dish side ore body stoping method in the scope of adopting of mine |
| CN103590832A (en) * | 2013-11-27 | 2014-02-19 | 山东盛大矿业有限公司 | Pillar pre-isolation sublevel stick-filling mining method and ore body therefor |
| CN103590832B (en) * | 2013-11-27 | 2016-05-18 | 山东盛大矿业有限公司 | Ore pillar is isolated in advance the segmentation stick method of mining by the way of filling and is applicable to the ore body of these mining codes |
| CN104100269A (en) * | 2014-06-10 | 2014-10-15 | 湖北尧治河化工股份有限公司 | Method for improving recovery rate of thick, large and broken ore body under dangerous rock body |
| CN104847353A (en) * | 2014-11-30 | 2015-08-19 | 刘桂花 | Layered simultaneous production top coal caving coal mining method of steep dip coal seam group |
| CN108163582A (en) * | 2017-12-06 | 2018-06-15 | 长春黄金研究院 | A kind of mobile dress ore deposit platform and its dress ore deposit method |
| CN108163582B (en) * | 2017-12-06 | 2020-03-31 | 长春黄金研究院 | Movable ore loading platform and ore loading method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1008463B (en) | 1990-06-20 |
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