CN85103513A - Across pitch moves back continuously adopts the sublevel open stoping caved stopes - Google Patents
Across pitch moves back continuously adopts the sublevel open stoping caved stopes Download PDFInfo
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- CN85103513A CN85103513A CN85103513.2A CN85103513A CN85103513A CN 85103513 A CN85103513 A CN 85103513A CN 85103513 A CN85103513 A CN 85103513A CN 85103513 A CN85103513 A CN 85103513A
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- mining
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- flood peak
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/16—Connecting or disconnecting pipe couplings or joints
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17666—Radially reciprocating jaws
- Y10T279/17692—Moving-cam actuator
- Y10T279/17717—Rotary eccentric-cam sleeve
Abstract
" flood peak " formula mining codes belong to field of mining.It is in thick thin partially, it is slow partially to tilt, a kind of combined mining method that the uneasily mining orebody of little structure development provides.The long-pending excellent method of this method utilization creative engineering, it is few to combine the barnyard dilution, and avalanche method management ground presses the wall type method to form the advantage of barnyard.Its essence is and do not stay rib, the top-bottom pillar unification, across pitch moves back continuously and adopts, a step back production of ore drawing under the shielding ore pillar.Mining technology of the present invention is simple, and depletion loss is low, good economical benefit; Personnel do not advance barnyard, and technology is reliable, and safety is good.The present invention is suitable for ferrous metal, non-ferrous metal and nonmetal mining.
Description
The invention belongs to field of mining.
In thick inclined orebody owing to be subjected to the restriction at orebody thickness and inclination angle, the back production difficulty is big, can not utilize the gravity ore drawing, also high efficiency mining equipment is used in inconvenience, labor productivity is low, safety condition is poor.Its exploitation method at home and abroad all is a research topic.
The sixties, Soviet Union Mil Gary nurse is matched plumbous zinc ore and was tested " room-and-pillar method that electricity is taken off ore removal ", in 1983, chemical mine design and research institute of China's chemical industry portion and chaste tree assist phosphorus ore mineral bureau to propose " forming the medium-length hole room-and-pillar method of barrier pillar synchronously " jointly, and they all are two step back production, and residual ore pillar is difficult to reclaim, adopt electricity to take off ore removal, labor productivity is low, and personnel need advance barnyard, poor stability.The seventies, Zambia Mu Fulila copper mine has been tested " waterfall " formula mining codes.These mining codes also are across pitch two step back production, employings in to time to fan shaped medium length hole, the ore owing to nearly 50% is to emit under rock cover, therefore, pure ore recovery ratio is low, and this method only to be suitable for vertical thickness be ore body more than 9 meters.
The objective of the invention is in thick thin partially, it is slow partially to tilt, the ore body of minor structure growth adopts a kind of technology simple, compliance is strong; Depletion loss is low, good economical benefit; Technology is reliable, the mining methods that safety is good.
This method promptly is " across pitch moves back the sublevel open stoping avalanche method of adopting continuously ".This method is the long-pending excellent method of utilization creative engineering, and the open-stope method dilution is few, and press on avalanche method management ground, and the advantage of wall type method formation barnyard organically combines and is integral.Its essence is and do not stay rib, the top-bottom pillar unification, across pitch moves back continuously and adopts, a step back production of ore drawing under the shielding ore pillar.Owing to move back the shape scape that presents in the process of adopting as the flash flood, so be " flood peak " formula mining codes." flood peak " formula mining codes are seen accompanying drawing.
Divide three segmentations in 40 meters scopes of level interval, the segmentation height is respectively 13 meters or 14 meters.Segmentation ore removal tunnel is tunneled in ore body along the ore body base plate, joins by segmentation connecting taxiway and exploiting field People's Bank of China and ore pass, forms independently transportation system of segmentation.The rock drilling gallery that undercuts is arranged along ore body base plate contact wire in vertical high 5 meters on slice drift top.Adorn ore deposit crosscuts by chassis one side every 8 meters diggings along segmentation ore removal gallery.
Every about 66-67 rice, tunnel the inclination angle on the ore body chassis and be 50～55 ° ore removal and People's Bank of China's combined shaft, tunnel segmentation ore removal connecting taxiway to ore body from courtyard every 13-14 rice, 5 meters cutting horizontal on the segmentation connecting taxiway, from the upraise rock drilling connecting taxiway that undercuts, stride 1.2 meters high chassis rock along the ore body chassis, pick undercuts, and the gallery (4) of rock drilling unification is dug segmentation ore removal gallery (1) and arrived the stope border in ore body along the ore body chassis.By lower wall one side, be about 5.5 meters crosscut, dress ore deposit (2), bucket neck (3) every 8 meters drivings.Tunnel in ore body along the chassis to cut sth. askew from the rock drilling gallery that undercuts on the stope border and cut courtyard (6), cutting groove is to form with the fan shaped medium length hole explosion.
Stope does not stay studding, and Liu Chuigao is 5 meters an inclination foundation.When following substoping, keeps 3 meters and tiltedly thickly isolate fore-set (5) as segmentation, fore-set generally not to reclaim, collapses sneaking into of segmentation barren rock as supporting barnyard in the exploitation process with stopping, and stope structure parameter sees Table.
From the horizontal Drilling medium-length hole of the rock drilling that undercuts, its hole packed plane with move towards into 80 ° of-85 ° of angles of cut, and 70 °-85 ° the inclination fanhole(s) of leaning forward is because hole packed plane can utilize quick-fried power to reduce the loss of base plate ore towards taking over a business direction.
At place, last segmentation dress crosscut, ore deposit, contrary mining direction is arranged single face inclination fanhole(s), the vertical ore body roof and floor of its row's face.On design and cutter, during medium-length hole, pay special attention to move towards the smooth and desired physical dimension of ore pillar, with the integrality of assurance curtain wall.
Ore caving work is carried out in two steps, begins across pitch ore caving by row from cutting groove, and the ore under collapsing falls into the moat ditch, and this part ore amount accounts for 65%; Secondly, when bottom ore caving work plane
Stope structure parameter table (unit: rice)
After advancing about 8 meters, big gun hole in avalanche top utilizes quick-fried power that ore is thrown into the moat ditch immediately.This part ore amount accounts for 20%.
Broken ore is fallen the ore in the moat ditch, drops down onto dress crosscut, ore deposit by funnel, is transported into courtyard through the scraper shovel, selects for use suitable equipment to be transported to the face of land then.
Freshly distinguished and admirablely enter the slice drift and the rock drilling gallery that undercuts by courtyard, useless wind turns to vent (-escape) raise to discharge the face of land through mineral building from the top slice drift, and work plane remains and runs through distinguished and admirable, does not have the trouble of dirty wind polyphone.
" flood peak " formula mining codes key parameter is determined by following two design formulas:
The spacing of a, drawhole
l＝B+ (2h)/(tgφ)
In the formula: the spacing of l-drawhole
The width of B-drawhole
H-measures the height dimension of level to the stope drift active workings base plate
φ-ore drawing angle of repose
The length of b, interim curtain wall
l′＝ (h)/(tgα) +e
In the formula: the length of l '-interim curtain wall
H-stope slant height
α-the angle of fall, equivalent shop
The e-lime stone pours in the length in the stope
" flood peak " formula mining codes adopt principle:
When the slanting angle of ore body 〉=40 °, and orebody thickness is 5.5～6.5 meters a little structure development, available such scheme, when the slanting angle of ore body＜40 °, orebody thickness is 5.5～6.5 meters, and top board is more firm, then but across pitch is generally 16 meters distance layout courtyard, make full use of quick-fried power, height of lift is strengthened better effects if.
The present invention compares with " waterfall " formula mining codes, and it is thick thin partially to it is characterized in that being used for exploitation, and slow partially uneasily mining orebody tilts.In-vein preparatory work, permanent fore-set is stayed in top-bottom pillar unification, the single step back production, in the employing to fan shaped medium length hole.85% ± 10 ore is emitted pure ore recovery ratio height under the barnyard of isolating under the fore-set protection.
Embodiment: thick thin partially in the many genus of Chinese Kaiyang phosphorus ore, it is slow partially to tilt, and little structure development directly pushes up unsteady rich phosphorus deposit, and the exploitation difficulty is big.In design, construction and the production of recent two decades, carried out four larger ortho-tests with regard to eight kinds of mining methods once, effect is all very undesirable, and operation is dangerous, and accident is frequent; Ore dilution loss is big; It is unreliable to produce, and output fluctuation is big.From one nine eight O to eight in September, 3, this ore deposit adopts " flood peak " mining codes to obtain good benefit, and loss late reduces by 10.62%, and the rate of dilution reduces by 1.6%, for ore deposit grade 31.2%, adopts T
2Average 140 ton per days of production capacity of mining field (being up to 800 ton per days) direct cost now was 8.68 yuan/ton when G transported ore deposit equipment, had obtained 39.1 ten thousand yuan of direct economic benefits, and 48.8 ten thousand yuan of economic results in society add up to total economic benefit to reach 87.9 ten thousand yuan." flood peak " formula mining codes are used over nearly 5 years at the Kaiyang phosphorus ore major casualties are not taken place, and are subjected to workman's welcome and favorable comment deeply.
The suitable ferrous metal mining of the present invention, non-ferrous metal mining and nonmetal mining.
Claims (6)
1, a kind of mining codes belong to field of mining, be to adopt two step back production, being suitable for vertical thickness is ore body more than 9 meters, the invention is characterized in and to be applied to thickly in the exploitation thinly partially tilt to delay partially, the uneasily mining orebody of little structure development does not stay rib, the top-bottom pillar unification, across pitch moves back continuously and adopts, a step back production of ore drawing under the shielding ore pillar.
2, according to claim 1 described " flood peak " formula mining codes, it is characterized in that the distance computation formula of drawhole is: l=B+ (2h)/(tg φ).
3, according to claim 1 described " flood peak " formula mining codes, it is characterized in that the length computation formula of interim curtain wall is: l '=(h)/(tg α)+e
4, according to claim 1 described " flood peak " formula mining codes, it is characterized in that being applicable to the slanting angle of ore body more than or equal to 40 °, orebody thickness is 5.5～6.5 meters a little structure development.
5, according to claim 1 described " flood peak " formula mining codes, it is characterized in that its slanting angle of ore body less than 40 °, and orebody thickness is 5.5～6.5 meters, when top board is relatively more firm, then but across pitch is generally 16 meters distance layout incline raise, and height of lift is strengthened, and makes full use of quick-fried power.
6,, it is characterized in that the suitable ferrous metal mining of the present invention, non-ferrous metal mining and nonmetal mining according to claim 1 described " flood peak " formula mining codes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86106887A CN1007532B (en) | 1985-04-30 | 1985-04-30 | Continuous retreating sectional open stope caving mining along the run of ore vein |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86106887A CN1007532B (en) | 1985-04-30 | 1985-04-30 | Continuous retreating sectional open stope caving mining along the run of ore vein |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85103513A true CN85103513A (en) | 1986-10-29 |
| CN1007532B CN1007532B (en) | 1990-04-11 |
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ID=4793245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86106887A Expired CN1007532B (en) | 1985-04-30 | 1985-04-30 | Continuous retreating sectional open stope caving mining along the run of ore vein |
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| Country | Link |
|---|---|
| CN (1) | CN1007532B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967973B (en) * | 2009-07-28 | 2012-10-31 | 鞍钢集团矿业公司 | Open stope-caving combined mining method |
| CN106437716A (en) * | 2016-09-23 | 2017-02-22 | 北京矿冶研究总院 | Underground broken phosphorus ore body mining method |
| CN108104869A (en) * | 2017-12-08 | 2018-06-01 | 北京科技大学 | A kind of continuous stoping method of mining by the way of filling of gently inclined medium thick orebody |
| CN109139015A (en) * | 2018-10-16 | 2019-01-04 | 长沙矿山研究院有限责任公司 | Cut type openstope method is drawn in slitting |
-
1985
- 1985-04-30 CN CN86106887A patent/CN1007532B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101967973B (en) * | 2009-07-28 | 2012-10-31 | 鞍钢集团矿业公司 | Open stope-caving combined mining method |
| CN106437716A (en) * | 2016-09-23 | 2017-02-22 | 北京矿冶研究总院 | Underground broken phosphorus ore body mining method |
| CN108104869A (en) * | 2017-12-08 | 2018-06-01 | 北京科技大学 | A kind of continuous stoping method of mining by the way of filling of gently inclined medium thick orebody |
| CN108104869B (en) * | 2017-12-08 | 2019-05-07 | 北京科技大学 | A kind of continuous stoping method of mining by the way of filling of gently inclined medium thick orebody |
| CN109139015A (en) * | 2018-10-16 | 2019-01-04 | 长沙矿山研究院有限责任公司 | Cut type openstope method is drawn in slitting |
| CN109139015B (en) * | 2018-10-16 | 2020-06-23 | 长沙矿山研究院有限责任公司 | Strip cutting type open stoping method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1007532B (en) | 1990-04-11 |
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