CN101775985A - Deeply buried iron mineral resource underground mining and concentrating integration system - Google Patents
Deeply buried iron mineral resource underground mining and concentrating integration system Download PDFInfo
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- CN101775985A CN101775985A CN 201010108423 CN201010108423A CN101775985A CN 101775985 A CN101775985 A CN 101775985A CN 201010108423 CN201010108423 CN 201010108423 CN 201010108423 A CN201010108423 A CN 201010108423A CN 101775985 A CN101775985 A CN 101775985A
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- 238000005065 mining Methods 0.000 title claims abstract description 22
- 229910001608 iron mineral Inorganic materials 0.000 title claims abstract description 16
- 230000010354 integration Effects 0.000 title claims abstract description 15
- 238000012216 screening Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 27
- 238000000498 ball milling Methods 0.000 claims description 14
- 239000012141 concentrate Substances 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 14
- 239000011707 mineral Substances 0.000 abstract description 14
- 239000011435 rock Substances 0.000 abstract description 9
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
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- 229910052737 gold Inorganic materials 0.000 description 4
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- 230000018109 developmental process Effects 0.000 description 3
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- 229910052742 iron Inorganic materials 0.000 description 2
- 238000010334 sieve classification Methods 0.000 description 2
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- 238000002360 preparation method Methods 0.000 description 1
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- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention relates to a deeply buried iron mineral resource underground mining and concentrating integration system, which is characterized in that only one main hoisting shaft is arranged, positions adjacent to the main hoisting shaft are provided with an underground concentrating mill, an underground filling station and an underground water sump; the left side and the right side of the main hoisting shaft are uniformly provided with at least one blind shaft, and positions adjacent to the main hoisting shaft and the blind shaft are both provided with a main orepass; the footwall side of the top of an ore body is provided with a main horizontal haulage roadway, and both ends of the roadway are provided with air shafts; and the underground concentrating mill comprises a cycle chamber, a conical chamber, a screening chamber, a powder ore chamber, a grinding chamber, a sorting chamber and a product delivery chamber. The invention has the main characteristics that the concentrating mill, the underground filling station and the under water sump are arranged underground so as to realize short-distance hoisting of mined deeply buried mineral resources, the concentrated tailings and waste rocks are directly used underground, the overall mining cost can be reduced by 10 to 30 percent without damaging the earth surface, environment pollution is reduced, and the ecological environment is protected.
Description
Technical field
The present invention relates to the selecting and purchasing system of mineral resources, be specifically related to the system of deeply buried iron mineral resource underground mining concentrating integration.
Background technology
China is mining powers, and the characteristics of China's iron mineral resource are that lean ore is many at present, and rich ore is few; Difficult ore dressing is many, and easily ore dressing is few; Mineral intergrowth is many, and single ore deposit is few; The superficial part ore deposit is few, and the ore deposit, deep is many.Increasing along with in recent years the prospecting degree of depth, it is abundant to have verified the following iron mineral resource reserves of the 500m degree of depth, all show according to up-to-date metallogenic theory research and deep location prediction checking result simultaneously, the underground 500-1500m degree of depth sees that the ore deposit example is numerous, show that the China mainland deep containing the iron mineral resource that has a high potential, therefore study large-scale deeply buried iron mineral resource development approach the economic development of China is had very important far reaching significance.
At present, the exploitation of mineral resources mainly takes to carry out earlier the exploitation of shallow embedding mineral resources, exploits to the deep gradually again.Particularly for buried mining mineral resource, employing bores several from the face of land even tens deep-wells carry out ore extraction, then the ore of taking is risen to the face of land, carries out ore dressing by the ore dressing plant that is based upon on the face of land.It is at first will beat many deep-well minings that there is maximum defective in the selecting and purchasing mode of this mineral resources, the total length of boring strengthens, ore lifting capacity after the exploitation also strengthens, and the mine tailing after the ore dressing need be thrown mine tailing storehouse or back filled region, and this result causes cost of production to increase substantially.In addition, along with the environmental problem in mine in recent years is serious day by day, pollute in the mine tailing storehouse, dam-break accident takes place frequently, land acquisition expense height, the land acquisition difficulty, annual environmental improvement expense and the environment pollution fine that also will pay great number makes the mine that is producing face a lot of difficulties.
Carry out underground selecting and purchasing about mineral resources, existing at home and abroad many scholars are studying, and have made a large amount of reports.As in " Chinese tungsten industry " the 23rd volume the 5th phase of October in 2008, record in the 44th page: abroad exploit in the mine of nonferrous metallic ores, the underground example that selects factory of existed building, former Soviet Union Armenia gold Production Association builds the ore dressing plant in the chamber of down-hole.Mine mining and ore dressing process flow process such as Fig. 2 of underground mill mainly comprise: the ore deposit → shipment that falls → down-hole transportation → underground ore dressing → mine tailing and barren rock → mine tailing concentrate → transportation → goaf, down-hole; Concentrate after the ore dressing rises in the ore storage bin of ground.Above-mentioned just to a brief overview of underground selecting and purchasing ore deposit process, do not provide concrete technical scheme.Whether reasonable, still need further to inquire into if setting up underground selecting and purchasing system for gold mine in addition.Because the characteristics of gold mine are that gold content is generally all very low in the ore, therefore ore is after exploitation and ore dressing, it more than 90% tailings, if again these tailings all are backfilling into the goaf, this is irrealizable, will inevitably some tailings, still need to rise to ground, such result is against the purpose of setting up underground mill.
In addition, at world's mining wall bulletin, the 14th volume, 1998 the 12nd phases, total the 447th phase, the 15th page, name is called in " underground selecting and purchasing integration engineering " has also reported the imagination of setting up underground mill, and discloses underground selecting and purchasing integration engineering diagrammatic sketch, arranges enrichment plant at the indoor staircase method of the cave of building in advance, mainly comprise mineral building in the filling, filling mineral building, rooming, ventilating shaft, main shaft ground sedimentation basin and feed pipe, the enrichment plant vertical shaft, enrichment plant, tailing pit.Though this article has proposed above-mentioned imagination,, point out again simultaneously: though some designing institutees have carried out some designs, underground selecting and purchasing integration engineering probably can not appear in Russia in the near future.Reason is the relevant issues of underground space preparation mining and ore dressing, also needs scientifically to solve.The technical scheme that the underground selecting and purchasing of above-mentioned disclosed enforcement is described thus is also immature, can't implement.
Summary of the invention
The present invention be directed to the problem that prior art exists; a kind of deeply buried iron mineral resource underground mining, concentrating integration system are proposed; build ore dressing plant and tailings treatment system in underground deep; the realization short distance promotes; underground nearby ore dressing; underground nearby tailings is handled, and reduces production costs and reduces land acquisition, preserves the ecological environment effectively.
Deeply buried iron mineral resource underground mining of the present invention, concentrating integration system, comprise in the minery the main winding shaft, interior shaft, main chute, the main haulage horizon tunnel that are provided with, run through Chuan Mai tunnel, shaft station, ventilating shaft, underground mill between the main haulage horizon tunnel, be arranged on lifting control device on the ground surface and the concentrate warehouse on the ground surface; Described main winding shaft is arranged on vertical orebody trend, and the delineation face of land mobile strip 20m outside the position; Described main haulage horizon tunnel is communicated with interior shaft and main chute by crossdrift and shaft station, and two ends, main haulage horizon tunnel offer ventilating shaft; Described interior shaft top is communicated with interior shaft elevator chamber, its main points are: a main winding shaft only is set, the and arranged on left and right sides adjacent at main winding shaft evenly offers at least 1 interior shaft, is equipped with a main chute at main winding shaft and every interior shaft adjacent position; Described main haulage horizon tunnel is arranged on the lower wall side at ore body top.With main winding shaft is the center, and with the main haulage horizon tunnel in the other direction a side, radius are in the semi-circumference scope of 20-300m, more than the main haulage horizon tunnel or following 20-40m place be provided with underground mill, water lodge and underground Filling Station, be provided with between underground mill and the main winding shaft and unload ore deposit passage and concentrate transport pipeline.
Described underground mill comprises cycle chamber, circular cone chamber, screening chamber, fine ore chamber, ball milling chamber, sorts chamber and product conveying cave stone, and each chamber is taked layout form or trapezoidal arrangement form.
Described underground Filling Station is made up of sand storehouse chamber, cement bin chamber and stirring chamber, and underground Filling Station is communicated with underground mill and filling goaf by pipeline.Above-mentioned underground Filling Station will be accepted the tailings that underground mill is sent here by pipeline, after treatment, arrive the filling goaf by line transportation.Also available these tailings form artificial top studding or tailings filling goaf forms artificial top studding, for the ore back production creates conditions.
Mining methods of the present invention adopt mining with stowing, comprise layering, segmentation and stage exploitation, or the method that adopts open-stope method afterwards to come bashing with tailings.
The present invention has outstanding feature and positive effect with respect to prior art:
(1) ore dressing plant is built in underground deep, greatly reduced the digging quantity of main winding shaft, realized that the deeply buried iron mineral resource short distance that exploitation is come out promotes, tailings after the ore dressing and barren rock directly obtain in the down-hole utilizing.
(2) deeply buried iron mineral resource is promoted to underground mill by many interior shafts, shortens the range of lift of ore greatly and promotes filling effect, has realized energy-saving and emission-reduction, can reduce mining cost 10-30% on the whole, and overall economic benefit is very big.
Especially the present invention realizes exploration without waster, and barren rock does not go out the hole, and mine tailing storehouse, ground is not built in the direct backfill of mine tailing, and not being damaged in ground, particularly need not levy a large amount of agricultural lands, really can practical ecological environmental protection.
(3) the present invention is applicable to newly-built large-scale deeply buried iron mineral resource exploitation, really can solve the problem of environmental pollution that the mine is faced for a long time.
Description of drawings:
Fig. 1 is that mineral resources of the present invention are undergroundly adopted, the vertical perspective view of concentrating integration system;
Fig. 2 is that Fig. 1 mineral resources are undergroundly adopted, concentrating integration system plane projection schematic diagram;
Fig. 3 is the vertical perspective view of underground mill layout;
Fig. 4 is Fig. 3 underground mill layout perspective view;
Fig. 5 is the vertical perspective view of the trapezoidal layout of underground mill;
Fig. 6 is the trapezoidal plane of arrangement perspective view of Fig. 5 underground mill;
Among the figure 1, main winding shaft, 2, the concentrate conveyance conduit, 3, the concentrate warehouse, 4, underground mill, 5, unload the ore deposit passage, 6, filling pipeline, 7, interior shaft elevator chamber, 8, the filling stope, 9, ore pillar, 10, the ore removal stope, 11, main chute, 12, interior shaft, 13, crossdrift, 14, ventilating shaft, 15, the ore body boundary, 16, the Chuan Mai tunnel, 17, the main haulage horizon tunnel, 18, ore deposit rock boundary, 19, the face of land, 20, underground Filling Station, 21, the shaft station, 22, water lodge, 23, ground promotes control device, 401, the cycle chamber, 402, the circular cone chamber, 403, the screening chamber, 404, the fine ore chamber, 405, the ball milling chamber, 406; sort chamber, 407 products are carried chamber.
The specific embodiment:
Example 1, be example with China's Benxi iron ore, to calculate storage capacity be 3,100,000,000 tons through surveying, 1000-1400m under the burial ground, ore body length overall 2000m, wide 1300m.In yearly productive capacity is 2,500 ten thousand tons, formed underground adopting, concentrating integration system, as depicted in figs. 1 and 2, at vertical orebody trend, doubling-up fixes on mobile strip 50m position, the face of land a main winding shaft 1 is set, in 20-300m zone, the left side of main winding shaft 1 and 17 following 20m places, main haulage horizon tunnel, be provided with a underground mill 4, comprise cycle chamber 401, circular cone chamber 402, screening chamber 403, fine ore chamber 404, ball milling chamber 405; sort chamber 406; product is carried chamber 407; each chamber is taked the layout form, as shown in Figure 3 and Figure 4.Cycle chamber 401 design spaces are 18m * 100m * 40m, and+30m service clearance mainly assembles the vortex crushing machine, realize the coarse crushing to ore; Circular cone chamber 402, the design space, in broken be 15m * 100m * 15m ,+30m service clearance, in small, broken bits is 15m * 100m * 15m ,+30m service clearance is laid gyratory crusher, and is broken and in small, broken bits during ore is carried out; Screening chamber 403, the design space is 7.5m * 18m * 15m ,+10m service clearance, the assembling sieving machine carries out sieve classification to ore; Fine ore chamber 404 is used for the raw material surge chamber of ball milling chamber, the design space is 7.5m * 18m * 10m, + 10m service clearance, ball milling chamber 405 assembling ball mills comprise one section of ball milling and two sections two parts of ball milling, and one section design space of ball milling is 36m * 30m * 15m, + 30m service clearance, two sections design spaces of ball milling are 36m * 30m * 15m, and+30m service clearance is implemented the ore of sieve classification is carried out ball milling; Sort chamber 406, the design space is 30m * 30m * 15m, and+30m service clearance is laid and sorted machinery, is used to extract valuable mineral; Product is carried chamber 407, and the design space is 1000m
2, be the concentrate conveying chamber of whole underground mill, be connected with riser tubing in the main winding shaft by concentrate conveyance conduit 2, promote control device 23 controls by ground, concentrate is sent to face of land concentrate warehouse 3.In order to guarantee the underground stability and safety of selecting factory, ore pillar and artificial pillar arranged alternate are adopted in each chamber space.The top board of chamber is adopted long anchor cable and shotcrete rock bolt wire mesh support, prevent the loosening of rock and collapse, help to select measuring point at top board and two simultaneously, place sensor, detect the variation of rock around the chamber and move.Assembling noise reduction and noise abatement equipment in chamber reduce underground ore dressing noise in addition.Pan20mChu is provided with underground Filling Station 20 on the right side of main winding shaft 1 50m and ore body top, is made up of 6 vertical sand warehouse chambers, 3 cement bin chambers and 1 stirring chamber, is communicated with bashing and underground mill 4 by pipeline.The tailings in ore dressing plant is delivered to underground Filling Station earlier after treatment, and then tailings is delivered to the goaf, fill by pipeline.In addition, can also adopt tailing-filled method to form artificial top studding or tailing-filled goaf forms artificial top studding, for follow-up ore back production creates conditions.Position at the lower wall 20m at the left side of main winding shaft 1 150m and ore body top is provided with water lodge 22, is communicated with ore dressing plant 4 and underground Filling Station 20 with pipeline.Described main winding shaft 1 each side evenly offer 3 interior shafts 12, all offer a main chute 11 in the adjacent position of main winding shaft 1 and every interior shaft 12.The effect of main chute 11 is for promote the ore of bottom further to lower floor's ore bed driving the time.All offering a shaft station 21 around the position of each interior shaft 12 and main chute 11.Offer a main haulage horizon tunnel 17 in mining region, employing is circular layout, and links to each other by Chuan Mai tunnel 16 between the main haulage horizon tunnel 17, is spaced apart 50m between the adjacent Chuan Mai tunnel 16; Main haulage horizon tunnel 17 is communicated with by crossdrift 13 and shaft station 21.The two ends in described main haulage horizon tunnel 17 offer ventilating shaft 14, are used for the ventilation in minery and ore dressing plant.Along with tunnelling footage strengthens, in mining region, offer the level haulageway identical as the main haulage horizon tunnel.
With respect to the above-mentioned yearly productive capacity of the present invention is 2,500 ten thousand tons of calculating, adopts traditional development approach, every vertical shaft year hoisting power with 4,000,000 tons of calculating, need to make a call to the deep-well more than 7 1500m.Adopt said system of the present invention, can reduce winding shaft driving rice linear meter more than 6000; Can make ore without main shaft hoisting in selecting and purchasing ore deposit manufacturing process, and, send into the ore dressing plant through unloading the ore deposit passage directly by the main haulage horizon tunnel.Greatly reduce the lifting cost of ore like this.Through mine tailing or the barren rock after the ore dressing,, can be directly used in bashing through the tailings treatment system.Concentrate after the ore dressing by line transportation to the face of land.According to preresearch estimates, adopt the relative prior art of technical solution of the present invention, can reduce mining cost 10-30% generally.Adopt technical solution of the present invention in addition, can really realize protection, have important social benefit ecological environment.
Example 2: with China's Si Jia mountain range iron ore is example, and these mineral resources are imbedded in below the underground 600m, and ore body is long to be 1000m, and wide is 500m, and calculating its reserves is 1,600,000,000 tons.According to yearly productive capacity is 1,000 ten thousand tons of meters, and the formation that forms underground selecting and purchasing integral system of the present invention is with example 1.Difference is, at vertical orebody trend, doubling-up fixes on mobile strip 30m position, the face of land, and a main winding shaft 1 is set, in main winding shaft 1 left side and 17 following 40m places, main haulage horizon tunnel underground mill 4 is set, trapezoidal arrangement form is taked in the space of each chamber of underground mill 4.As shown in Figure 5 and Figure 6.Cycle chamber 401 design spaces are 18m * 70m * 40m, + 30m service clearance, circular cone chamber 402, design space, in broken be 15m * 50m * 15m, + 30m service clearance, in small, broken bits is 15m * 50m * 15m ,+30m service clearance, screening chamber 403, the design space is 7.5m * 18m * 15m ,+10m service clearance, fine ore chamber 404, the design space is 7.5m * 10m * 15m, + 10m service clearance, ball milling chamber 405, one section design space of ball milling is 36m * 15m * 15m, + 30m service clearance, two sections design spaces of ball milling are 36m * 15m * 15m, and+30m service clearance sorts chamber 406, the design space is 30m * 15m * 15m, + 30m service clearance, product is carried chamber 407, and the design space is 500m
2Underground Filling Station 20 is made up of 1 cement bin in 2 horizontal sand storehouses and 1 stirring chamber.And arranged on left and right sides at main winding shaft 1 is equipped with 1 interior shaft 12.Be spaced apart 12.5m between the adjacent Chuan Mai tunnel 16 that described connection main haulage horizon tunnel is 17.
Claims (3)
1. a deeply buried iron mineral resource underground mining, concentrating integration system, comprise main winding shaft, interior shaft, main chute, main haulage horizon tunnel, connect Chuan Mai tunnel, shaft station, ventilating shaft between the main haulage horizon tunnel, underground mill, be arranged on the lifting control device on the ground surface and be arranged on concentrate warehouse on the ground surface, described main winding shaft is arranged on vertical orebody trend, and the delineation face of land mobile strip 20m outside the position; Described main haulage horizon tunnel is communicated with interior shaft and main chute by crossdrift and shaft station, and two ends, main haulage horizon tunnel offer ventilating shaft; Described interior shaft top is communicated with interior shaft elevator chamber, it is characterized in that: a main winding shaft only is set, the left and right sides adjacent at main winding shaft evenly is provided with at least 1 interior shaft, main winding shaft and every interior shaft adjacent position all are provided with a main chute, the main haulage horizon tunnel is arranged on the lower wall side at ore body top, with main winding shaft is the center, and with a main haulage horizon tunnel side in the other direction, radius is in the semi-circumference scope of 20-300m, more than the main haulage horizon tunnel or following 20-40m place is provided with underground mill, water lodge and underground Filling Station are provided with between underground mill and main winding shaft and unload ore deposit passage and concentrate transport pipeline.
2. according to the described deeply buried iron mineral resource underground mining of claim 1, concentrating integration system, it is characterized in that described underground mill comprises cycle chamber, circular cone chamber, screening chamber, fine ore chamber, ball milling chamber, sorts chamber and Product transport chamber, each chamber is taked layout form or trapezoidal arrangement form.
3. according to the described deeply buried iron mineral resource underground mining of claim 1, concentrating integration system, it is characterized in that described underground Filling Station by sand storehouse chamber, cement bin chamber with stir chamber and forms, underground Filling Station is communicated with underground mill and filling goaf by pipeline.
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