CN105064996A - Process for transporting stripped waste rock by double-drive car in open coal mine - Google Patents
Process for transporting stripped waste rock by double-drive car in open coal mine Download PDFInfo
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- CN105064996A CN105064996A CN201510401050.5A CN201510401050A CN105064996A CN 105064996 A CN105064996 A CN 105064996A CN 201510401050 A CN201510401050 A CN 201510401050A CN 105064996 A CN105064996 A CN 105064996A
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Abstract
The invention provides a process for transporting stripped waste rock by a double-drive car in an open coal mine with the deep concave vertical depth exceeding 80m or a transportation path exceeding 3km. According to the process, a large-sized single bucket excavator is used for loading the stripped waste rock; the large-sized single bucket excavator unloads the loaded waste rock to a 220t large-size diesel-overhead line dual-energy-source driving mining dump car; the waste rock is transported in the whole transportation path; a railless trolley car overhead line power supply system is erected at the upslope road section of the whole transportation path for car full-load transportation; the diesel-overhead line dual-energy-source driving mining dump car uses an alternating current electric motor driving system in the full-load upslope road section; and the diesel-overhead line dual-energy-source driving mining dump car uses a diesel engine driving system in other road sections. The process has the positive effects that an alternating current electric motor is used for driving in the full-load upslope road section, so that the transportation efficiency is obviously improved; the service life of a diesel engine is greatly prolonged; and the emission of the diesel engine is obviously reduced.
Description
Technical field
The present invention relates to open coal mine and peel off a kind of transportation technology of barren rock, is the technique adopting stringing formula Dual-energy source Automobile Transportation specifically.
Background technology
Existing open coal mine transport is peeled off barren rock means and is comprised Automobile Transportation.Automobile Transportation technique has that initial investment is little, transport capacity is large, the feature of maneuverability, is most widely used at Chinese large-sized open coal mine.But along with the progressively exhaustion of coal in China superficial part resource, increasing open coal mine develops to dark recess, after entering the dark recessed stage, the distance of mine car heavy duty climbing is more and more longer, such as at dark recessed vertical depth more than 80m, transportation range more than the open coal mine of 3Km, the haulage vehicle speed of a motor vehicle reduces, and diesel consumption increases, the cost of Automobile Transportation with consume maintenance cost and continue to increase, and the tail gas of discharge to stain the problem such as seriously more and more outstanding.At dark recessed vertical depth more than 80m or the transportation range open coal mine more than 3Km, be not suitable for using Automobile Transportation to peel off barren rock.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide a kind of open coal mine and peeling off barren rock and adopt two technique of driving Automobile Transportation, said open coal mine refers to that dark recessed vertical depth is more than 80m or the transportation route open coal mine more than 3Km.
The object of the present invention is achieved like this:
(1) large-scale power shovel loads the barren rock after peeling off;
(2) barren rock of loading unloads to 220t level large-sized diesel by large-scale power shovel--stringing driven by two energy sources mining dump truck, at whole transportation route transport barren rock, said diesel oil--stringing driven by two energy sources mining dump truck refers to the mining dump truck simultaneously possessing Diesel engine and ac motor dual drive system, and this roof also has the bow collector gathering trolleybus stringing electric power system electric energy;
The whole transportation route that vehicle is fully loaded with transport peels off the uphill way (hereinafter referred to as fully loaded uphill way) of major trunk roads (the fixing section of Long-Time Service) by mining area and other section except uphill way forms, in uphill way erection trolleybus stringing electric power system, diesel oil--stringing driven by two energy sources mining dump truck uses AC motor drive system at uphill way; At other section diesel oil--stringing driven by two energy sources mining dump truck uses diesel engine drives system.
Compared with the automobile of common diesel power, good effect of the present invention is:
(1), adopt above-mentioned pair to drive mine truck transport, use ac motor driving during fully loaded upward slope, the power of ac motor is obviously large than the power of Diesel engine, significantly improves running velocity, and then improves conevying efficiency.
(2), in the fully loaded upward slope stage, Diesel engine is subject to loss most, expends diesel oil most, discharges at most, after adopting the present invention, the application life of Diesel engine can be extended, reduce maintenance cost, significantly reduce the consumption of diesel oil and then reduce the discharge of Diesel engine.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with accompanying drawing.
Fig. 1 is schematic diagram of the present invention, comprises large-sized diesel--stringing driven by two energy sources mining dump truck and stringing electric power system.
Detailed description of the invention
Introduce the employing the solution of the present invention for Yi Min Mei electricity Co., Ltd No. three open coal mine stope designs below.
Yi Min Mei electricity Co., Ltd No. three open coal mine basic conditions: mining area is positioned in the middle part of Western Slope of Daxinganling Hulunbuir Pasture Land, Hailaer Basin, Northeast China east, west side, downstream, Yi Min korneforos, basin is peripheral based on low mountains and hills, the highest 758.30m, minimum 664.94m.Be alluvial plain in basin, the general 671 ~ 673m of height above sea level, relative relief 93.36m.Intra zone traffic is based on land communications, and northing Hailaer District 70km, apart from Binzhou railway and 301 national highway 78km, apart from Honghuaerji town 60km, is about 30km apart from Yi Min people's commune.Reconnoitre east side, district to have extra large Yi Tielu apart from reconnoitring district 6km, pass through apart from reconnoitring district's 5.8km You Haiyi highway, traffic is very convenient.
The ore field area of No. three opencuts is 30.61Km
2, in open-pit limit, run-of-mine coal (ROM coal) amount is 953.70Mt, if opencut building size is 15.0Mt/a, reserve factor of mine reserves is by 1.1, and the design length of service is 58 years, and coal work line length is 2000m ~ 2500m, reaches and produces year stripping-to-ore ratio 4.71m
3/ t.Opencut divides two exploiting field exploitations, and near 21 exploration line, across pitch draws ditch, tendency propelling.Working pit edge direction of propulsion, first exploiting field is advanced by north orientation south, and two exploiting fields advance from west to east, and seam mining adopts bucket continuous processing.Outer dump is positioned at the northwestward in first exploiting field, total floor space 1160hm
2.Mining area Main workable coal seams is 2 layers, namely 15
on, 16
undercoal seam.15
onthickness 15.20 ~ 27.00m, average 16.95m, seam inclination 1 ~ 8 °, average 5 °, coal bed texture is simple.16
underthickness 15.54 ~ 27.00m, average 18.73m, seam inclination 1 ~ 8 °, average 6 °, coal bed texture is simple.
Digging field is divided into three districts, and a district is non working slope, and 2nd district are end side, and 3rd district are working pit edge.Outer dump is positioned at the west end side side of stope, and the distance of distance west end side is at least 400m, and western end wall height is 190m, and outer dump dumps height and calculates by 80m, and safe distance is 400m.By modeling analysis, side slope angle is 20 °, and the coefficient of stability can reach 1.28, kept stable.Because coal handling system is in east side end side, consider again the impact of multi-fault opposite end, subregion place, exploiting field side stability, southeast end wall height is 184m, and when slope angle is 17 °, the coefficient of stability is 1.31, kept stable simultaneously; Respectively side, can kept stable by 23 ° of considerations for all the other.It is highly 80m that outer dump dumps, and when side slope angle is 21 °, the coefficient of stability is 1.32; Outer dump side slope kept stable.Internal dumping side slope is dumping height 250m, and during slope angle 14 °, Bishop method and Swedish slice coefficient of stability result of calculation are 1.32, internal dumping stability of slope.
Be fully loaded with the uphill way 3 of the whole transportation route of transport at vehicle, erection trolleybus stringing electric power system 1, diesel oil--stringing driven by two energy sources mining dump truck 2 is received in electric power system contact wire by bow collector 21.When the barren rock that diesel oil--stringing driven by two energy sources mining dump truck receives large-scale power shovel unloading outwards transports, use AC motor drive system at uphill way; At other section diesel oil--stringing driven by two energy sources mining dump truck uses diesel engine drives system.
The stringing of large-scale stringing formula Dual-energy source Automobile Transportation technique assists operational system to form by mainly containing lower several part:
(1) mains-powered apparatus: be the link receiving, convert, distribute electric energy, comprise line disconnecting switch, transformer, rectifier, stream line breaker etc.Transportation technology of the present invention adopts Siemens to exchange actuation techniques, by the application of PLC technology, makes alternating current drive mining dump truck can enter stringing running status under any speed, and not by the restriction of auxiliary power supply voltage.In addition, this onboard system can mate the DC line of current 1400 ~ 1600V in emergency situations, also can use novel more efficient 2600V supply line.
(2) line concentrator: transportation technology of the present invention adopts the line concentrator of busbar stringing structure.
(3) current-collector device: transportation technology of the present invention adopts the current-collector device of pantograph formula, does not have electric arc to produce to obtain good current receiv, current collector ensures that in the working range of stringing conductor height pressure change is very little.The advantage of pantograph formula is easy to operate, does not limit by entrance, and can anytime anywhere enter stringing running status, driver operation is relatively easy.
(4) by electric conductor: adopt metal-graphite material to make to current collector contact conductor, electric conductivity is good, mechanical endurance energy is good, proportion is little.
The feature of No. three opencut large-scale stringing formula Dual-energy source Automobile Transportation techniques is as follows:
(1) capital equipment: what mine car adopted is 220t level AC electrical wheel self-discharging vehicle, dump truck quantity totally 11, and the tracking interval of automobile is 100m, loaded vehicle goes up a slope and year transports Mi Du≤2,200 ten thousand tkm.Large-scale power shovel adopts single bucket capacity to be 35m
3mining power shovel, be equipped with quantity 1.
(2) the stringing section of large-scale stringing formula Dual-energy source Automobile Transportation technique is selected on the fixing main access contact road of west side end side and each step slope of outer dump, stringing total line length 3km, the ramp gradient 10%, overburden is transported to outer dump each point of level by west side end side stringing ramp by Dual-energy source mine car.Mine car is at uphill way by after stringing boosting, and power is more powerful than general truck, and climbing capacity is strong, and when general fuel oil truck goes up a slope, the speed of a motor vehicle is no more than 15km/h, after stringing boosting, and car scooter 23.5km/h.
(3) in large-scale stringing formula Dual-energy source Automobile Transportation technique, when stringing automobile enters or sail out of stringing section, arrange 50m changeover portion, its gradient is 2%, carries out stringing boosting and diesel driven changeover switch for driver.Fixing transport routes curve turning radius is 200m, and width of roadway is 30m, and heart band arranges the wide line to be avoided of 5m in the road.
(4) the upward slope section stringing card length 2450m of large-scale stringing formula Dual-energy source Automobile Transportation technique, net-contact engineering two need extend sets anchor region, and add middle three trans-articular overlap sections, contact net mileage is 3000m.Consider that the annual temperature difference in Yi Min area is large, adopt the full simple catenary that compensates to hang, conductor combination is 2XJT150+2XCTHA150.System has certain elasticity, can absorb vehicle jolt cause bow net vibration.According to the requirement of traction power supply specialty, all conductor cross-sections are not less than 150mm
2, tension force is 15KN.Conductor height is by meeting truck transport condition design, and truck height 7.4m, height of contact wire suspension point presses 9.0m design temporarily.Adopt the horizontal bracket of particular design, contact net structure height is 3m.Stride values is 40m(flexible suspension)/24m(is rigid suspended).
(5) for improving large-scale stringing formula Dual-energy source auto efficiency, fuel saving, the consumption of saving tire and ensureing traffic safety, need to carry out frequent maintenance and periodic maintenance to mine road, make it to maintain a good state.In addition, stirring up a cloud of dust and environment pollution for reducing, affecting health, also answering road pavement to carry out daily watering and lowering dust.Design is equipped with 4 100t sprinkling trucks for road and stope, refuse dump watering and lowering dust to the maintenance of mine road.Be equipped with the road upkeep such as blade machine, road roller equipment simultaneously, in time cleaning carried out to stringing road smooth, ensure truck pantograph and stringing wiring circuit contact good.
Claims (1)
1. one kind at dark recessed vertical depth more than 80m or transportation route technique of driving Automobile Transportation stripping barren rock two more than the open coal mine employing of 3Km is:
(1) large-scale power shovel loads the barren rock after peeling off;
(2) barren rock of loading unloads to 220t level large-sized diesel by large-scale power shovel--stringing driven by two energy sources mining dump truck, at whole transportation route transport barren rock;
Be fully loaded with the uphill way of the whole transportation route of transport at vehicle, erection trolleybus stringing electric power system, diesel oil--stringing driven by two energy sources mining dump truck uses AC motor drive system at fully loaded uphill way; At other section diesel oil--stringing driven by two energy sources mining dump truck uses diesel engine drives system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510401050.5A CN105064996A (en) | 2015-07-10 | 2015-07-10 | Process for transporting stripped waste rock by double-drive car in open coal mine |
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| CN201510401050.5A CN105064996A (en) | 2015-07-10 | 2015-07-10 | Process for transporting stripped waste rock by double-drive car in open coal mine |
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| CN105064996A true CN105064996A (en) | 2015-11-18 |
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| CN201510401050.5A Pending CN105064996A (en) | 2015-07-10 | 2015-07-10 | Process for transporting stripped waste rock by double-drive car in open coal mine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682042A (en) * | 2021-02-02 | 2021-04-20 | 内蒙古华威矿业工程有限责任公司 | Method for transporting and dumping open pit coal mine |
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| CN102267394A (en) * | 2011-04-11 | 2011-12-07 | 王书铭 | Power supply method of metal mine trackless equipment and special power device thereof |
| CN104553831A (en) * | 2013-10-02 | 2015-04-29 | 山特维克矿山工程机械有限公司 | Mining vehicle and method for energy supply thereof |
| CN104627005A (en) * | 2013-11-14 | 2015-05-20 | 张�浩 | Double-energy-driven mine vehicle |
-
2015
- 2015-07-10 CN CN201510401050.5A patent/CN105064996A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213174A (en) * | 2010-04-12 | 2011-10-12 | 利勃海尔比伯拉赫有限公司 | Self-propelled working machine with electrical drive system and processes for operating the same |
| CN102267394A (en) * | 2011-04-11 | 2011-12-07 | 王书铭 | Power supply method of metal mine trackless equipment and special power device thereof |
| CN104553831A (en) * | 2013-10-02 | 2015-04-29 | 山特维克矿山工程机械有限公司 | Mining vehicle and method for energy supply thereof |
| CN104627005A (en) * | 2013-11-14 | 2015-05-20 | 张�浩 | Double-energy-driven mine vehicle |
Non-Patent Citations (2)
| Title |
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| 西罗特金等: "架线汽车运输矿岩", 《国外金属矿山》 * |
| 西罗特金等: "深露天矿的生产运输", 《国外金属矿山》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682042A (en) * | 2021-02-02 | 2021-04-20 | 内蒙古华威矿业工程有限责任公司 | Method for transporting and dumping open pit coal mine |
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Application publication date: 20151118 |
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