CN104847359A - Open air combined transportation process for stripped waste stones of phosphate ore by car and large-scale slope skip bucket - Google Patents
Open air combined transportation process for stripped waste stones of phosphate ore by car and large-scale slope skip bucket Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 9
- 239000010452 phosphate Substances 0.000 title claims abstract description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 9
- 230000008569 process Effects 0.000 title abstract description 14
- 239000004575 stone Substances 0.000 title abstract description 4
- 239000002699 waste material Substances 0.000 title abstract 4
- 239000011435 rock Substances 0.000 claims abstract description 78
- 238000002955 isolation Methods 0.000 claims abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 41
- 229910052698 phosphorus Inorganic materials 0.000 claims description 41
- 239000011574 phosphorus Substances 0.000 claims description 41
- 230000032258 transport Effects 0.000 claims description 30
- 239000000428 dust Substances 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 6
- 241001669679 Eleotris Species 0.000 claims description 4
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 44
- 238000005516 engineering process Methods 0.000 description 25
- 241000196324 Embryophyta Species 0.000 description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 238000011160 research Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000010459 dolomite Substances 0.000 description 3
- 229910000514 dolomite Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000002367 phosphate rock Substances 0.000 description 3
- 238000003915 air pollution Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011981 development test Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052655 plagioclase feldspar Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C47/00—Machines for obtaining or the removal of materials in open-pit mines
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to an open air combined transportation process for stripped waste stones of phosphate ore by a car and a large-scale slope skip bucket. According to the transportation process, an open pit to be mined is divided into a plurality of mining areas in a direction along the orebody trend; the width of each mining area is 400 to 600m; an isolation strip of 20m to 30m is reserved between the adjacent mining areas and is used as a track of a skip bucket lifting system; and a track foundation of the skip bucket lifting system is directly built on an ore bed bottom plate base rock. The stripped waste stones in the open pit are firstly and directly loaded into a mining car by an excavator, are then unloaded to a skip bucket box through the mining car, are next conveyed to an upper part flat road of the open pit through the skip bucket lifting system, are transloaded to the mining car, and are conveyed to a waste dump by the mining car. The building of a special temporary storage silo is not needed at the upper part and the lower part of the skip bucket lifting system; the once load capacity of the skip bucket box is basically identical to the load capacity of one mining car; the single-time load capacity of the skip bucket is not smaller than 50 tons; and the combined transportation process by the car and the large-scale slope skip bucket replaces the traditional transportation process by the mining car or a belt conveyor.
Description
Technical field
The present invention relates to a kind of surface mining technique of phosphorus ore, belong to mining engineering technical field, specifically relate to a kind of outdoor combined transportation technique of phosphorus ore.
Background technology
Phosphorus ore is the important strategic resource of country, one of 20 mineral that can not meet national economic development demand after the exploitation that remaining abundant ore source only can continue for more than 10 years is classified as 2010 by Ministry of Land and Resources.In the fields such as China's grain-production, modern chemical industry, new forms of energy, new material and national defence, there is extensive use.In recent years along with the progressively exhaustion with superficial part high-grade phosphate rock resource that continues to increase of outdoor phosphate mine mining depth, the outdoor phosphorus ore of China progressively enters the Deep mining stage, due to the change of Mining technology condition and the impact of ore deposit rock natural cause, existing automobile or belt conveyor haulage process advantage are progressively lost, and are faced with a following difficult problem;
(1) after proceeding to deep mining, ore deposit rock mechanics physical property changes, and hard ore deposit rock ratio increases, and stope working space size reduces gradually, and New level preparation and development haulage system build difficulty;
(2) along with the increase of mining depth, transportation range continues to increase, and traffic condition runs down, and device efficiency constantly reduces, and cause mine capacity constantly to decline, ore cost obviously increases;
(3) open-pit slope is more and more higher.Particularly in recent years, some mine adopts also section to improve it by helper's skill and finally helps slope angle, and the control of slope stability and maintenance difficulties strengthen;
(4) cost of labor, maintenance of equipment and maintenance cost, energy consumption and oil consumption expense, the cost of raw material, managed operation cost, the continuing to increase of stripping-to-ore ratio, soil and woodland management increases and the continuing to increase of Environment protection and safety expense.
(5) phosphate mine of territory, the important ecological sensitive areas periphery such as the Yangtze river basin, territory, lake region, Dian Chi is located in; due to close industry and densely populated aggregation zone; more harsh to the environmental protection requirement of opencut, more strict to the exhaust emissions index request of dust in mine and heavy mine car especially.
Therefore, how poor in endowment of resources condition, price is limited, cost increase and the stagnant multiple pressure of chemical industry under, by mining technology innovation, technological innovation and perfect, improvement and optimization is carried out to existing stope transport system, and research is applicable to mine excavating plant under new situations condition, and particularly the dark recessed excavating plant new transport system of peeling off barren rock is very necessary.To realize China's phosphorus ore green high-efficient comprehensive development and utilization, guarantee that mine is developed for a long time sustainedly and stably.
Domestic less about specializing in of phosphate mine surface mining transportation technology at present, the successful development test of main reference metal mine and colliery and engineering practice achievement, and the development test of peeling off the transportation technology of barren rock about mine, territory, important ecological sensitive areas excavating plant is almost blank with the case history of exploration, existing main results is as described below:
1. Chinese patent (application number 201320301927) " the rock packing of skip shaft ore deposit divides the system of putting forward ", relate to the Hoisting System of underground metalliferous and non-metal mine, invent that a kind of equipment is simple, investment is saved, flow process is smooth and easy, overhaul skip shaft ore easily carries sub-packaging system with dividing of barren rock, but this skip bucket technique is suitable for the transport of underground fixed-site ore and barren rock, mobile cost is higher, skip bucket single is put forward carrying capacity and is less than 30 tons, and barren rock particle size diameter requires all within 300mm.Thick outdoor phosphorus deposit in being as thin as gentle dip, because its stope disperses, the stripping barren rock lumpiness after explosion is comparatively large, and about have 40 ~ 50% barren rock particle size diameters more than 300mm, this kind of transport system cannot be applied.
2. Chinese patent (application number 201320170372) " a kind of protecting against shock skip bucket dress ore deposit device " all relates to the wear-resisting of a kind of underground mine and the skip bucket transportation technology shouldering impact with Chinese patent (application number 201320292465) " a kind of wear-resistant near coal-mine carrying expects skip bucket ", but the skip bucket tonnage involved by it is all below 30 tons, the requirement that annual traffic reaches the outdoor stripping barren rock of more than 2,000,000 tons cannot be met, and its transport barren rock particle size diameter requires all within 300mm, peeling off barren rock for the outdoor phosphorus ore that there is a large amount of large grade cannot migrate.
3. Chinese patent (application number 201320141860) " a kind of side dump skip for inclined shaft turns over cash device and haulage inclined shaft hoisting system ", Chinese patent (application number 201320067098) " skip loading system " all relates to the wear-resisting of a kind of underground mine and the skip bucket transportation technology shouldering impact, but the skip bucket tonnage involved by it is all below 30 tons, the requirement that annual traffic reaches the outdoor stripping barren rock of more than 2,000,000 tons cannot be met, and its transport barren rock particle size diameter requires to control within 300mm, barren rock is peeled off for the outdoor phosphorus ore that there is a large amount of large grade cannot migrate.
4. Chinese patent (application number 201220707849) " a kind of large-scale two-chamber skip bucket ", Chinese patent (application number 201220385658) " major diameter main vertical Large Copacity skip bucket conveying arrangement " all relates to a kind of large-tonnage skip bucket transportation technology of underground mine, corresponding skip bucket single lift tonnage all can reach 50 ~ 60 tons, the requirement of outdoor stripping barren rock mass transit amount can be met, but its skip hoisting system position cannot be moved, cannot adapt to gentle dip be as thin as in the requirement of the frequent movement of thick phosphorus deposit, and barren rock particle size diameter requires to control within 400 ~ 500mm, the transport of peeling off barren rock more than the outdoor phosphorus ore of 500mm for 30 ~ 40% barren rock particle size diameters is not suitable for.
5. Chinese patent (application number 00101655) " lifting means of surface mine " and Chinese patent (application number 200610045835.4) " self-moving mine truck elevator for surface mine ", all relate to a kind of large-scale deep open pit mountain Automobile Transportation technique, this process system can move, annual traffic can reach 1,000 ten thousand tons, replace diesel oil at upward slope improvement stage automotive dead weight and electric power, can greatly reduce costs.But this moving and setting of system costly, single moves establishes expense 100 ~ 1,500,000 yuan, cannot adapt to gentle dip be as thin as in the requirement of the frequent movement of thick phosphorus deposit, and it is strict especially to foundation requirement, operation must be carried out on extremely firm complete rock basal plane, simultaneously it anti-skiddingly not yet solves with a correlation technique difficult problem for gear PLC safety control system, and safety is difficult to ensure.In addition cost of investment is huge, 1 cover system about about 100,000,000 yuan, unreasonable economically, cannot under current technological conditions in the open mine apply.
6. Chinese patent (application number 201010229273) " the continuous coal winning technology method of open coal mine ", Chinese patent (application number 201010589225) " a kind of opencast mining Processes and apparatus ", Chinese patent (application number 201180027974) " continous way surface mining systems ", Chinese patent (application number 201180028011) " for continuous opencast conveyer system ", Chinese patent (application number 87206496) " car ribbon conveyer ", Chinese patent (application number 90105500) " shiftable transport train " and Chinese patent (application number 201110315682.1) " opencut peels off backfill induction system " all relate to surface miner and mobile belt conveyor combined transportation technique, for colliery, the ore body that the hardness of minerals coefficients such as Gypsum Mine are less has very strong applicability, owing to working continuously, within its year, conveying capacity can reach more than 1,000 ten thousand tons, operation cost is lower, but thick phosphorus ore in being as thin as the gentle dip that metallic ore and phosphorus ore particularly comparatively disperse, because hardness of minerals coefficient reaches 8 ~ 12, its mechanical consuming cost is too high, is difficult to apply.
7. the quick senior engineer of the Wang Yun of Sinosteel Maanshan Institute of Mining Research [Wang Yunmin. mining handbook (in) [M]. Beijing: metallurgical industry publishing house, 2012.], the Che Zhaoxue of China Mining University with just celebrate auspicious professor [Che Zhaoxue, just celebrate auspicious, Liu Yong. open coal mine semi-continuousmining technology and application technical research [M] thereof. Xuzhou: publishing house of China Mining University, 2006], the Li Zhicheng of Kunming Metallurgical Highere Technical College teaches [Li Zhicheng, Xiayang. strip mining transformation [M]. Kunming: publishing house of Yunnan University, 2009], to the outdoor cableway of China, automobile, railway, rubber conveyer, Large Underground skip shaft, the multiple transportation technologies such as small-sized outdoor slope skip bucket have carried out system research and introduction, but thick open-air mineral deposit during gentle dip is as thin as, the gentle dip being particularly arranged in territory, important ecological sensitive areas be as thin as thick open-air mineral deposit enter the Deep mining stage after the research of stripping barren rock and introduction be almost blank, for this kind of special mineral deposit, existing railway, automobile, the equal existence condition of belt conveyor haulage technique is not suitable for, cost is high, dust and the large defect of air pollution, and there is the defect of transport capacity wretched insufficiency in existing cableway, small-sized outdoor slope skip bucket transportation technology.
Summary of the invention
The object of the invention is for compose the gentle dip being stored in this territory, important ecological sensitive areas of China's Dian Chi periphery and other conditions of similarity region be as thin as in thick phosphorus ore difficulty adopt phosphorus deposit, there is provided a kind of be applicable to its enter the deep seat cut stage after stope peel off barren rock low cost, safe and efficient, technique is simple, green transportation technology
To guarantee that the phosphate rock resource of this region and domestic conditions of similarity can the exploitation of economic environmental protection after entering the outdoor Deep mining stage.
The technical scheme that the present invention takes is: phosphorus ore peels off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock, it is characterized in that to compose the gentle dip being stored in this territory, important ecological sensitive areas of Dianchi Lake, Yunnan Province periphery be as thin as in thick phosphorus ore, thick phosphorus orebody trend direction in being as thin as along gentle dip, several exploiting fields are divided by needing the excavating plant of exploitation, each exploiting field width 400-600m, stay between adjacent exploiting field and establish 20m-30m isolation strip, isolation strip is for installing large-scale slope skip bucket track, and the track ground of large-scale slope skip bucket is directly based upon on seam floor basement rock; The stripping barren rock of open-air pit stope first directly loads mine truck by power shovel, be offloaded in large skip case by mine truck, reprint again to mine truck after being transported to open-air pit top transport level road by large-scale slope skip hoisting system again, finally transport to refuse dump by mine truck.
Described gently inclined phosphate body, its slanting angle of ore body scope is 12 ~ 30 °; Described be as thin as in thick phosphorus ore, its orebody thickness scope is 3 ~ 12m.
Described mine truck, the self clearing car of the hydraulic pressure diesel driven of its net weight of loads Liang≤60 ton.
Described large-scale slope skip bucket, its ramp inclination angle is consistent with the slanting angle of ore body, between 12 ~ 30 °; No. 1 time skip bucket case carrying capacity is substantially equal with the carrying capacity of 1 mine truck, and skip bucket single carries heavily measures≤50 tons, 1.8 m≤wide degree≤2.2m, 1.2≤Gao Du≤2.2m, 20m
3≤ Ti Ji≤30m
3; Slope skip bucket carries out operation by the large-scale winch of Juan cylinder Zhi Jing≤3.5 m by PLC automatic control system, and its activity duration is 16 hours every days, annual working days 300 days, and supply voltage is 10KV, average hoisting velocity 5m/s, year lifting Liang≤1,500,000 m
3.
Described track, 1.5 m≤Kuan Du≤1.8 m, form primarily of rail, sleeper and rubble.
Impact resistance, the wear resistance of described skip bucket case require higher, need to be laid on its surface by special double-deck manganese steel material; Skip bucket lower box part is equipped with several transportable pulley simultaneously.
Described power shovel, its dipper capacity and skip capacity proportioning are 3:1 or 4:1, its scraper bowl Rong Ji≤5.5m
3.
Described mine truck and skip bucket proportioning 3:1,1 cover skip bucket and 1 automobile work, 2 Truck dispartching are for subsequent use.
Described excavating plant, it exploits Chui straight Shen Du≤85 m, and stope top and bottom do not need to set up special interim stripping barren rock stores feed bin, sets up automobile and skip bucket control room, large-scale slope and hoist house on stope top.
Described mine truck all only transports and peels off barren rock on the level road of stope top with bottom, and the transport of peeling off the barren rock upward slope stage is then completed by large-scale slope skip bucket;
This territory, important ecological sensitive areas of described Dianchi Lake, Yunnan Province periphery, its regional extent is Dianchi Lake, Yunnan Province periphery 2 ~ 3m scope, is industry and population collection region in this region, higher to environmental protection requirement, and the dust of surface mine breathes the dense degree≤1.0mg/m of powder dirt
3, the mine vehicle exhaust emissions Nong Du≤5.0g/km of surface mine.
Compared with prior art, tool has the following advantages in the present invention:
1, at home first for compose the gentle dip being stored in this territory, important ecological sensitive areas of China's Dian Chi periphery be as thin as in thick phosphorus ore difficulty adopt phosphorus deposit, provide a kind of be applicable to its enter the deep seat cut stage after stope peel off the transportation technology of barren rock.
2, the phosphorus ore of the present invention mine car of peeling off barren rock and large-scale slope skip bucket open air transport technique have with low cost, conveying capacity is large, safe and efficient, technique simply, the feature of environmental protection.
Accompanying drawing explanation
Fig. 1 phosphorus ore of the present invention peels off barren rock automobile and the outdoor combined transportation process schematic representation of large-scale slope skip bucket.
Fig. 2 the present invention large-scale slope skip hoisting system general frame schematic diagram.
Fig. 3 is that the detailed comparisons of transportation technology of the present invention and existing transportation technology cost shows.
In figure: 1 is slope skip bucket; 2 is loading attachment; 3 is track; 4 is discharge mechanism; 5 is track end bracing frame; 6 is head sheave; 7 is wire rope; 8 is hoisting gear.
Detailed description of the invention
The present invention is directed to compose the gentle dip being stored in this territory, important ecological sensitive areas of Dianchi Lake, Yunnan Province periphery be as thin as in thick phosphorus ore, to the excavating plant of exploitation be needed to divide several exploiting fields along orebody trend direction, each exploiting field width 400-600m, stay between adjacent exploiting field and establish 20m-30m isolation strip to be used as large-scale slope skip bucket track, the track ground of large-scale slope skip bucket is directly based upon on seam floor basement rock.The stripping barren rock of open-air pit stope first directly loads mine truck by power shovel, large skip case is offloaded to by mine truck, reprint to mine truck after being transported to open-air pit top transport level road by large-scale slope skip hoisting system again, finally transport to refuse dump by mine truck.
Described gently inclined phosphate body, its slanting angle of ore body scope is 12 ~ 30 °.
Described be as thin as in thick phosphorus ore, its orebody thickness scope is 3 ~ 12m.
This territory, important ecological sensitive areas of described Dianchi Lake, Yunnan Province periphery, its regional extent is Dianchi Lake, Yunnan Province periphery 2 ~ 3m scope, is industry and population collection region in this region, higher to environmental protection requirement, and the dust of surface mine breathes the dense degree≤1.0mg/m of powder dirt
3, the mine vehicle exhaust emissions Nong Du≤5.0g/km of surface mine.
Described mine truck, the self clearing car of the hydraulic pressure diesel driven of its net weight of loads Liang≤60 ton.
Described large-scale slope skip bucket, its ramp inclination angle is consistent with the slanting angle of ore body, between 12 ~ 30 °; No. 1 time skip bucket case carrying capacity is substantially equal with the carrying capacity of 1 mine truck, and skip bucket single carries heavily measures≤50 tons, 1.8 m≤wide degree≤2.2m, 1.2≤Gao Du≤2.2m, 20m
3≤ Ti Ji≤30m
3; Slope skip bucket carries out operation by the large-scale winch of Juan cylinder Zhi Jing≤3.5 m by PLC automatic control system, and its activity duration is 16 hours every days, annual working days 300 days, and supply voltage is 10KV, average hoisting velocity 5m/s, year lifting Liang≤2,000,000 m
3.
Described track, 1.5 m≤Kuan Du≤1.8 m, form primarily of rail, sleeper and rubble.
Described skip bucket case, it shoulders shock, wear resistance requirement is higher, needs to be laid on its surface by special double-deck manganese steel material; Simultaneously under skip bucket case with transportable pulley.
Described power shovel, its dipper capacity and skip capacity proportioning are 3:1 or 4:1, its scraper bowl Rong Ji≤5.5m
3.
Described mine truck and skip bucket proportioning 3:1,1 cover skip bucket and 1 automobile work, 2 Truck dispartching are for subsequent use.
Described excavating plant, it exploits Chui straight Shen Du≤85 m, and stope top and bottom do not need to set up special interim stripping barren rock stores feed bin, sets up automobile and skip bucket control room, large-scale slope and hoist house on stope top.
Described mine truck all only transports and peels off barren rock on the level road of stope top with bottom, and the transport of peeling off the barren rock upward slope stage is then completed by large-scale slope skip bucket.
Execute example below in conjunction with the mine car and the actual of large-scale slope skip bucket open air transport technique that adopt Yunnan Linhua Group Corp., Ltd. of the present invention Kunyang two mining area excavating plant stripping barren rock, the present invention is further illustrated, but be not limited to embodiment.
Kunyang two mining area excavating plant basic condition: Kunyang two ore deposit deposit type is the Sedimentary phosphate rock mineral deposit that the early Cambrian period is formed.Mining area ore bed (body) surface occurence extends 4500m, and across strike all has ore body to distribute within the scope of mining area, maximum buried depth 400m, general 50 ~ 200m.Ore body (layer) occurrence is generally moves towards east northeast-Nan Xi, tendency east southeast, general 105 ~ 180 °, average 150 °, general 2 ~ 31 ° of inclination angle, average 15 °.Mining area ore bed average thickness 12.18m.Ore deposit, upper strata ore bed average thickness 6.88m, P
2o
5average content is 23.41%, continuous on Ore body morphology, stable.Interlayer is greyish white, yellow clay, and thickness 0-3.08m, average 0.73m are discontinuous, unstable.Lower floor ore deposit ore bed average thickness 5.08m, P
2o
5average content is 29.09%, continuous on Ore body morphology, stable.
Ore body coiling final side slope is inclined to contrary with rock stratum, and stability of slope is good, not easily caves in; Ore body lower wall last slope is ore body base plate, and the slanting angle of ore body is more slow, and ore body immediate roof base plate is dolomite, and resistance to overturning is better.High 16 ~ the 26m of Slope, slope angle 34 ~ 47 °, composition rock is siltstone, low-grade phosphate ore stone, dolomite melange form, stability of slope.Peel off the high 25 ~ 50m of Slope in adjacent Kunyang four exploiting field, step peel angle 50 ~ 70 °, casting slope height 20 ~ 50m, there is not the engineering geological problems such as landslide in refuse dump bank slope 38 °.
In boundary, design utilizes resource reserve 4991.51 ten thousand t, P
2o
5average content 25.64%, drawing a circle to approve minimum strip mining transformation absolute altitude is 1880 m, ground mean level absolute altitude 2100 ~ 2200 m, highest level 2285 m, current orebody mining horizontal stope absolute altitude 1970 ~ 2050 m, stope distance earth's surface vertical depth 80 ~ 120 m.Kunyang two mining area has 1#, 2#, 3# tri-and peels off barren rock refuse dump.Current 1#, 2# are booked all, start after in July, 2014, and mining is peeled off barren rock and is all transported to 3# refuse dump, and the total barren rock amount in 3# refuse dump is 7423.7 ten thousand m
3, barren rock amount about 8,000,000 m is peeled off in Kunyang Er Kuang annual mean
3, can hold the stripping barren rock before 2024, mining is peeled off barren rock means of transportation and is low barren rock height row, namely adopts hole barren rock and transports by cheating the refuse dump of end lower near coal-mine adjacent upper part.
Before in March, 2014, before namely Kunyang Er Kuang stope vertical depth is less than 85m, mining sequence divides step to exploit from top to bottom, and each stair working line is mainly arranged along orebody trend, laterally advances.New level preparation opens double-walled ditch by the contact boundary of upper dish and ore body along orebody trend, and bottom of trench width is greater than 25m, and length meets the requirement of excavator workline length, coils direction and peel off, dig up mine to ore body lower wall direction on ore body.The process for stoping that the mining of slow side, steep side are peeled off.Because on ore body, armor rock is mainly shale, dolomite, limestone etc., country rock needs perforated blasting, adopt the mining technology that perforation-explosion-excavator-automobile combines, the mining technology that local can directly adopt excavator-automobile to combine, it peels off barren rock transportation technology is single Automobile Transportation, namely directly the stripping barren rock peeled off is loaded automobile at the stope end, hole by power shovel, refuse dump is transported to through open-air pit again by automobile, the proportioning of power shovel and automobile is 3:1, i.e. 12 EC700 power shovel (bucket capacity 4m
3), 12 PC750 power shovel (bucket capacity 4m
3) and 6 PC1250 power shovel (bucket capacity 6.5m
3) be equipped with 4 CAT773E self clearing cars (lifting capacity 55.5t), 4 3305F self clearing cars (lifting capacity 32t), 2 HD325(lifting capacity 36.5t) carry out hauling operation.
After in March, 2014, namely Kunyang Er Kuang stope vertical depth is more than after 85m, carry out block mining, adopt the new mining technology that perforation-explosion-excavator-automobile-large-scale slope skip bucket-automobile combines, namely will the excavating plant of exploitation be needed to be divided into 5 exploiting fields along orebody trend direction, each exploiting field width 500m, stay between adjacent exploiting field and establish 25m isolation strip to be used as large-scale slope skip bucket track, the track ground of 4 cover large-scale slope skip buckets is directly based upon on seam floor basement rock, with reference to accompanying drawing 1.It is peeled off barren rock transportation technology and changes for transportation technology of the present invention, i.e. mine car and large-scale slope skip bucket open air transport technique, the stripping barren rock of open-air pit stope first directly loads mine truck by power shovel, large skip case is offloaded to by mine truck, reprint to mine truck after being transported to open-air pit top transport level road by large-scale slope skip hoisting system again, finally transport to refuse dump by mine truck.Large-scale slope skip bucket in this transportation technology, its ramp inclination angle is consistent with the slanting angle of ore body, is 15 °, and skip bucket adopts the outdoor skip bucket of the homemade especially super-huge LK1 of Xuzhou Hua Rui mining equiment Manufacturing Co., Ltd, its net deadweight is 55.5 tons, just mates with 1 CAT773E self clearing car; Skip bucket is made by the double-deck high manganese steel lining plate (ZG120Mn13) of impact resistance and wearing and tearing, skip bucket case cumulative volume 28m
3, width 2.0m, height 2.0m, length 7.0 m, can hold the stripping barren rock within particle diameter 1.5m, remove broken link from; The drum diameter that slope skip bucket is produced by Hebi Sheng Da mining equiment Co., Ltd is that 3.5m large-scale JK series double-drum winch carries out control operation (with reference to accompanying drawing 2) by PLC automatic control system, activity duration is 16 hours every days, annual working days 300 days, supply voltage is 10KV, average hoisting velocity 5m/s, year lifting capacity 2,000,000 m
3.Skip bucket track width is 1.8 m, to be cast and forms, total plagioclase 700 m by 75kg/m steel sleeper and rubble via mixed earth hook.Often overlap in automobile and the outdoor combined transportation process system of large-scale slope skip bucket, power shovel dipper capacity and skip capacity proportioning are 4:1, i.e. 4 PC1250 power shovel (bucket capacity 6.5m
3) be equipped with 1 cover 28m
3the outdoor skip bucket of super-huge LK1; Automobile and skip bucket proportioning 2:1, namely 3 CAT773E self clearing cars (lifting capacity 55.5t) are equipped with 1 cover 28m
3the outdoor skip bucket of super-huge LK1, wherein 1 cover skip bucket and 1 automobile work, 2 Truck dispartching are for subsequent use.
The present invention is owing to have employed the above-mentioned automobile from barren rock and the outdoor combined transportation process program of large-scale slope skip bucket, and compared with existing technical scheme, tool has the following advantages:
1, compared with original single Automobile Transportation scheme, when peeling off barren rock transport capacity and being identical, owing to replacing diesel oil by electric energy, integrated cost have dropped 2.5 yuan/m
3.Significantly decrease the dust disaster in the air pollution of mining heavy vehicle emission and car-haul process, reduce the survival pressure in the mine being positioned at this ecological sensitive areas of periphery, Dian Chi.
2, carry out control operation by PLC automatic control system, significantly reduce headcount, improve safety simultaneously.
3, with traditional automobile and rubber conveyer combined transportation technique or automobile compared with the skip bucket transportation technology of small-sized slope, by with the mating of mine car model and quantity, realize stope top and bottom not need to set up the requirement that special interim stripping barren rock stores feed bin, reduce cargo handling operation, enormously simplify transportation technology link.
Mating 4, by special large skip and winch, realize the significantly lifting of transport capacity, the defect of the transport capacity wretched insufficiency of the traditional automobile of customer service and small-sized slope skip bucket combined transportation technique or automobile and cableway combined transportation technique, the special exploitation stage of large-scale gentle dip thick phosphorus deposit in being as thin as in the open first, (exploitation Chui straight Shen Du≤85 m) were applied.
5, the mode of base plate block mining is adopted, rubber conveyer poor mobility, the cost of investment of customer service be high, move and be set as this high defect, first stope dispersion, mobile gentle dip frequently in being as thin as thick phosphorus deposit achieve and peel off barren rock automobile and large-scale slope skip bucket outdoor combined transportation technique.
Claims (10)
1. a phosphorus ore peels off the automobile of barren rock and skip bucket outdoor combined transportation technique in large-scale slope is characterized in that:
To compose the gentle dip being stored in this territory, important ecological sensitive areas of Dianchi Lake, Yunnan Province periphery be as thin as in thick phosphorus ore, thick phosphorus orebody trend direction in being as thin as along gentle dip, several exploiting fields are divided by needing the excavating plant of exploitation, each exploiting field width 400-600m, stay between adjacent exploiting field and establish 20m-30m isolation strip, isolation strip is for installing large-scale slope skip bucket track, and the track ground of large-scale slope skip bucket is directly based upon on seam floor basement rock; The stripping barren rock of open-air pit stope first directly loads mine truck by power shovel, be offloaded in large skip case by mine truck, reprint again to mine truck after being transported to open-air pit top transport level road by large-scale slope skip hoisting system again, finally transport to refuse dump by mine truck.
2. peel off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock by a kind of phosphorus ore according to claim 1, it is characterized in that, described gently inclined phosphate body, its slanting angle of ore body scope is 12 ~ 30 °; Described be as thin as in thick phosphorus ore, its orebody thickness scope is 3 ~ 12m.
3. peel off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock by a kind of phosphorus ore according to claim 1, it is characterized in that, described mine truck, the self clearing car of the hydraulic pressure diesel driven of its net weight of loads Liang≤60 ton.
4. peel off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock by a kind of phosphorus ore according to claim 1, it is characterized in that, described large-scale slope skip bucket, its ramp inclination angle is consistent with the slanting angle of ore body, between 12 ~ 30 °; No. 1 time skip bucket case carrying capacity is substantially equal with the carrying capacity of 1 mine truck, and skip bucket single carries heavily measures≤50 tons, 1.8 m≤wide degree≤2.2m, 1.2≤Gao Du≤2.2m, 20m
3≤ Ti Ji≤30m
3; Slope skip bucket carries out operation by the large-scale winch of Juan cylinder Zhi Jing≤3.5 m by PLC automatic control system, and its activity duration is 16 hours every days, annual working days 300 days, and supply voltage is 10KV, average hoisting velocity 5m/s, year lifting Liang≤1,500,000 m
3.
5. peel off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock by a kind of phosphorus ore according to claim 1, it is characterized in that, described track, 1.5 m≤Kuan Du≤1.8 m, form primarily of rail, sleeper and rubble.
6. peel off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock by a kind of phosphorus ore according to claim 1, it is characterized in that, impact resistance, the wear resistance of described skip bucket case require higher, need to be laid on its surface by special double-deck manganese steel material; Skip bucket lower box part is equipped with several transportable pulley simultaneously.
7. peel off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock by a kind of phosphorus ore according to claim 1, it is characterized in that, described power shovel, its dipper capacity and skip capacity proportioning are 3:1 or 4:1, its scraper bowl Rong Ji≤5.5m
3.
8. peel off automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock by a kind of phosphorus ore according to claim 1, it is characterized in that, described mine truck and skip bucket proportioning 3:1,1 cover skip bucket and 1 automobile work, 2 Truck dispartching are for subsequent use.
9. automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock is peeled off by a kind of phosphorus ore according to claim 1, it is characterized in that, described excavating plant, it exploits Chui straight Shen Du≤85 m, and stope top and bottom do not need to set up special interim stripping barren rock stores feed bin, set up automobile and skip bucket control room, large-scale slope and hoist house on stope top.
10. automobile and the outdoor combined transportation technique of large-scale slope skip bucket of barren rock is peeled off by a kind of phosphorus ore according to claim 1, it is characterized in that, described mine truck all only transports and peels off barren rock on the level road of stope top with bottom, and the transport of peeling off the barren rock upward slope stage is then completed by large-scale slope skip bucket;
This territory, important ecological sensitive areas of described Dianchi Lake, Yunnan Province periphery, its regional extent is Dianchi Lake, Yunnan Province periphery 2 ~ 3m scope, is industry and population collection region in this region, higher to environmental protection requirement, and the dust of surface mine breathes the dense degree≤1.0mg/m of powder dirt
3, the mine vehicle exhaust emissions Nong Du≤5.0g/km of surface mine.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107299A (en) * | 2019-06-17 | 2019-08-09 | 王建鑫 | Open coal mine adopts stripping step and transport routes arrangement system and method and recovery method |
| CN110206543A (en) * | 2019-06-13 | 2019-09-06 | 中国神华能源股份有限公司 | Open coal mine transportation resources |
| CN114718574A (en) * | 2022-03-09 | 2022-07-08 | 长沙矿山研究院有限责任公司 | Open-air continuous rock discharging system and rock discharging method |
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- 2015-03-10 CN CN201510103116.2A patent/CN104847359A/en active Pending
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| 李长宝等: "《深露天矿》", 30 April 1965 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206543A (en) * | 2019-06-13 | 2019-09-06 | 中国神华能源股份有限公司 | Open coal mine transportation resources |
| CN110107299A (en) * | 2019-06-17 | 2019-08-09 | 王建鑫 | Open coal mine adopts stripping step and transport routes arrangement system and method and recovery method |
| CN110107299B (en) * | 2019-06-17 | 2020-12-25 | 王建鑫 | Open pit coal mine step mining and stripping and transportation road arrangement system and method and mining method |
| CN114718574A (en) * | 2022-03-09 | 2022-07-08 | 长沙矿山研究院有限责任公司 | Open-air continuous rock discharging system and rock discharging method |
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Application publication date: 20150819 |