CN103100475B - High-efficiency concentrate ore pulp processing device suitable for long-distance pipeline transportation - Google Patents
High-efficiency concentrate ore pulp processing device suitable for long-distance pipeline transportation Download PDFInfo
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- CN103100475B CN103100475B CN201310045332.7A CN201310045332A CN103100475B CN 103100475 B CN103100475 B CN 103100475B CN 201310045332 A CN201310045332 A CN 201310045332A CN 103100475 B CN103100475 B CN 103100475B
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Abstract
The invention discloses a high-efficiency concentrate ore pulp processing device suitable for long-distance pipeline transportation. The high-efficiency concentrate ore pulp processing device comprises an ore feeding device, an ore grinding device, a cyclone device, a safe screen and a thickener, wherein the ore feeding device is connected with the ore grinding device; the ore grinding device is connected with the cyclone device; a closed loop is formed by the cyclone device and the ore grinding device; the cyclone device is connected with the safe screen; a feeding hole of the ore grinding device is connected above the safe screen; and an ore conveying pipeline is connected under the safe screen. An internal circulation high-efficiency ore grinding separation system is formed by organically combining the ore grinding device and the safe screen, so that the ground concentrate ore pulp meets the requirement of long-distance pipeline transportation for the particle size of the ore pulp, the abrasion of the pipeline is reduced, the ore conveying efficiency is effectively increased, and the tailings grade is effectively reduced. The high-efficiency concentrate ore pulp processing device is simple and convenient in technological process and stable and reliable in running, and effectively improves the mineral separation efficiency and the economic benefit, thus being especially suitable for processing the ore pulp conveyed by the pipeline.
Description
Technical field
The invention belongs to mining equiment technical field, be specifically related to a kind ofly realize peripheral selecting factory's concentrate to be pooled to the concentrate slurry highly-efficient processing device being suitable for long-distance transportation through pipeline of smeltery by conveyance conduit.
Background technology
Mining, often by the restriction of topography and geomorphology, brings difficulty to ore outward transport, and in order to reduce transport amount, usually near mine, can arrange ore dressing plant on the spot, the concentrate selected adopts Automobile Transportation to smeltery usually.Automobile Transportation is flexible, and freight volume is little, and cost of transportation is high, and hill path traffic safety hidden danger is large.Such as, the distance air line distance in the steel mill of Kun Gang group and a mine is 150 kilometers, mountain road, if the transportation range of its automobile is much bigger, by annual output 300000 t/a, concentrate grade 60%, except the transportation economics cost that enterprise bears, is then potential social economy's cost to the damage of road.A kind of emerging long distance mineral products conveying technology of Cemented filling, low-carbon environment-friendly is a kind of technology of very practicability and effectiveness, but, the requirement that the granularity of pipeline transportation to mineral aggregate has some special, if the granularity of concentrate selecting factory to carry is undesirable, will cause abrasion or infringement to pipeline.For this reason, the concentrate treatment technology developing a kind of applicable concentrate long-distance transportation through pipeline meets mineral products and Metallurgical industry development need.
Summary of the invention
The object of the present invention is to provide a kind of structure simple, simple process, the concentrate slurry highly-efficient processing device of what grinding efficiency was high be suitable for long-distance transportation through pipeline.
The object of the present invention is achieved like this, comprise mine-feeding equipment, ore grinding device, swirl-flow devices, safe screen, concentrator, described mine-feeding equipment connects ore grinding device, described ore grinding device outlet connects swirl-flow devices by 2# pump pond, described swirl-flow devices and ore grinding device form closed-loop path, described swirl-flow devices concentrate exports a road and connects 1# pump pond, safe screen rock feeder connects safe screen, concentrator is connected by concentrate concentration basin under safe screen sieve, the concentrate outlet of concentrator connects defeated pipe road, the sieve upper outlet end Connection Pool of safe screen, and be connected with funnel, ore grinding device exports another road and directly connects safe screen.
The present invention adopts grinding attachment and sieving organic assembling forms the efficient ore grinding separation system of Inner eycle safely, makes the concentrate slurry ground meet the requirement of long-distance transportation through pipeline to pulp granularity, reduces the wearing and tearing to pipeline, and effectively improves defeated ore deposit efficiency.Swirl-flow devices, again screening device not only increase screening efficiency, and effectively reduce tailings grade, can be low to moderate about 10%.Present invention process simple flow, stable and reliable operation, can effectively improve beneficiating efficiency and economic benefit, is particularly suitable for the processing process of Cemented filling ore pulp.
Accompanying drawing explanation
Fig. 1 is matching relationship schematic diagram of the present invention;
In figure: 1-fine ore bin, 2-mine-feeding equipment, 3-funnel, 4-ore grinding device, 5-2# pump pond, 6-swirl-flow devices, 7-safe screen, 8-concentrate concentration basin, 9-low intensity magnetic separation device, 10-high intensity magnetic separation device, 11-scans device, 12-concentrator, the defeated pipe road of 13-, 14-1# pump pond, 15-safe screen rock feeder, 16-cushions pump pond, 17-smeltery feed bin.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated, but limited the present invention never in any form, and any conversion done based on training centre of the present invention or replacement, all belong to protection scope of the present invention.
As shown in Figure 1, the present invention includes mine-feeding equipment 2, ore grinding device 4, swirl-flow devices 6, safe screen 7, concentrator 12, described mine-feeding equipment 2 connects ore grinding device 4, described ore grinding device 4 connects swirl-flow devices 6, described swirl-flow devices 6 forms closed-loop path with ore grinding device 4, swirl-flow devices 6 connects safe screen 7, and safe screen 7 sieves the upper charging aperture connecting ore grinding device; Safe screen 7 sieves the defeated pipe road 13 of lower connection.
Described ore grinding device 4 exports and connects swirl-flow devices 6 by 2# pump pond 5, and described swirl-flow devices 6 concentrate outlet connects safe screen 7.Described safe screen 7 sieves lower connection concentrator 12, and the concentrate outlet of concentrator 12 connects defeated pipe road 13.
Described swirl-flow devices 6 concentrate exports a connection 1# pump pond 14, road, safe screen rock feeder 15 connects safe screen 7.
Described another road of swirl-flow devices 6 connects screening device again, then the outlet of screening device concentrate connects concentrator 6, and the mine tailing outlet of described screening device again connects tailing pit.
Described screening device again comprises low intensity magnetic separation device 9, high intensity magnetic separation device 10 successively and/or scans device 11, described low intensity magnetic separation device 9, high intensity magnetic separation device 10 and/or scan device 11 and connect concentrator 12 respectively.
Described ore grinding device 4 exports the direct safe screen 7 in another road, and safe screen 7 sieves upper connection ore grinding device 4 charging aperture; Safe screen 7 sieves lower connection concentrator 12.The sieve upper outlet Connection Pool 16 of described safe screen 7, and being connected with funnel 3, temporary storage ore pulp during for abnormal conditions occur.
Described safe screen 7 connects concentrator 12 by concentrate concentration basin 8 under sieving.
Described safe screen 7 is arranged in groups, and use in parallel is to improve disposal ability.
Described ore grinding device 4 is the one in ball mill, raymond mill, high pressure pulverizer, ladder type flour mill, middling speed flour mill, vertical roll grinder, Air Grinder.
Described ball mill is overflowball mill, and described overflowball mill is arranged in parallel.
Described mine-feeding equipment 2 is the one in slot type mine-feeding equipment, pendulum-type mine-feeding equipment, disk mine-feeding equipment.
Between described mine-feeding equipment 2 and ore grinding device 4, Ore Hopper 3 is set.
Described safe screen 7 is the one in high-frequency screen, numerical control sieve, Lu Kai sieve, electromagnetic vibrating screen.
Described concentrate concentration basin 8 is the one in gravity concentration tank, floatation thickening pond or swash plate (pipe) concentration basin.
illustrate operation principle of the present invention and the course of work below:
The present invention adopts grinding attachment and sieving organic assembling forms the efficient ore grinding separation system of Inner eycle safely, makes the concentrate slurry ground meet the requirement of long-distance transportation through pipeline to pulp granularity, reduces the wearing and tearing to pipeline, and effectively improves defeated ore deposit efficiency.
Described rock feeder is A seating disk feeder, disk diameter 2000mm, disposal ability: 0-80m3/h, band frequency-conversion and speed-regulation motor.
Described ball mill is overflowball mill, MQY2740G, barrel diameter 2700mm, barrel lenght 4000mm; Cylindrical shell dischargeable capacity 20.5m
3--; Steel ball maximum loading 37t; Synchronous motor model TM400-32, power 400kW, rated voltage 6000 volts; Motor speed 187.5r/min, drum speed 21.7r/min, weight: 12.4t; Liner manganese; Maximum mine-supplying quantity 81t/h, to ore deposit fineness-200 order 60%, product fineness-325 order accounts for 70%.MQY2.7 × 4.0m ball milling adds steel section specification: φ 40 × 45 × 50mm, and pack completeness is considered by 35%, just dress steel section 17t, to be produced normal after add 17t again.The concentration of ore milling concentration design is 75%.See grinding efficiency, and then adjust according to practical condition.
The Pulp pump in described 2# pump pond is 200ZJ-I-A60 the using and the reserved, 980r/min, 870m3/h, 55.5m, band frequency conversion, ore pulp proportion: 1.3, transportation concentration: 35%.The Pulp pump in described 1# pump pond is 150ZJ-I-A58/60 the using and the reserved, 980r/min, 380m3/h, 56.5m, band frequency conversion, ore pulp proportion 1.2, transportation concentration: 25%.
Described cyclone Φ 350 × 10, FX350-PU feed ore concentration less than 35%, sand setting bore 55mm, distribution brake control valve; 10 one group, 8 is standby with 2; The operating pressure of a cluster cyclone is 0.08MPa.Overflow caliber 100mm, partition size 50-150um.
During work, start the Pulp pump in 1#, 2# pump pond, belt conveyor, grinding classification system, ball mill successively, after guaranteeing ball mill normal operation, restart belt and disk feeder starts feed, fine ore from ore dressing plant is transported to overflowball mill from ore storage bin and carries out ore grinding, the defibrination that ball mill overflow exports can after enter Lu Kai and sieve, on-the-sieve material is recycled to overflowball mill and continues defibrination, undersize material sends into concentrate concentration basin, is delivered to smeltery's feed bin after then being processed by concentrator through conveyance conduit.
Mineral aggregate after defibrination sends into swirl-flow devices through pump pond, after cyclonic separation a road through 1# pump Chi You Give ore deposit machine deliver to safe screen carry out screening process, undersize material sends into concentrate concentration basin, is delivered to smeltery's feed bin after then being processed by concentrator through conveyance conduit; On-the-sieve material is recycled to overflowball mill and continues defibrination.Another road enters screening device again, successively through low intensity magnetic separation, high intensity magnetic separation and after scanning process, the concentrate material after sorting at different levels is sent into after concentrator processes and is delivered to smeltery's feed bin through conveyance conduit, and after three grades of sortings, tailings grade declines further, reach after falling tail requirement, send into tailing pit.
Claims (7)
1. one kind is suitable for the concentrate slurry highly-efficient processing device of long-distance transportation through pipeline, comprise mine-feeding equipment (2), ore grinding device (4), swirl-flow devices (6), safe screen (7), concentrator (12), it is characterized in that: described mine-feeding equipment (2) connects ore grinding device (4), described ore grinding device (4) outlet connects swirl-flow devices (6) by 2# pump pond (5), described swirl-flow devices (6) and ore grinding device (4) form closed-loop path, described swirl-flow devices (6) concentrate exports a road and connects 1# pump pond (14), safe screen rock feeder (15) connects safe screen (7), concentrator (12) is connected by concentrate concentration basin (8) under safe screen (7) sieve, the concentrate outlet of concentrator (12) connects defeated pipe road (13), sieve upper outlet end Connection Pool (16) of safe screen (7), and be connected with funnel (3), ore grinding device (4) exports another road and directly connects safe screen (7).
2. the concentrate slurry highly-efficient processing device being suitable for long-distance transportation through pipeline according to claim 1, it is characterized in that: described swirl-flow devices (6) another road connects screening device again, the outlet of screening device concentrate connects concentrator (6) again, and the mine tailing outlet of described screening device again connects tailing pit.
3. the concentrate slurry highly-efficient processing device being suitable for long-distance transportation through pipeline according to claim 2, it is characterized in that: described screening device again comprises low intensity magnetic separation device (9), high intensity magnetic separation device (10) successively and/or scans device (11), described low intensity magnetic separation device (9), high intensity magnetic separation device (10) and/or scan device (11) and connect concentrator (12) respectively.
4. the concentrate slurry highly-efficient processing device being suitable for long-distance transportation through pipeline according to claim 1, is characterized in that: described ore grinding device (4) is ball mill, one in raymond mill, high pressure pulverizer, ladder type flour mill, middling speed flour mill, vertical roll grinder, Air Grinder.
5. the concentrate slurry highly-efficient processing device being suitable for long-distance transportation through pipeline according to claim 1, is characterized in that: described mine-feeding equipment (2) is slot type mine-feeding equipment, one in pendulum-type mine-feeding equipment, disk mine-feeding equipment.
6. the concentrate slurry highly-efficient processing device being suitable for long-distance transportation through pipeline according to claim 1, is characterized in that: described safe screen (7) is high-frequency screen, numerical control sieve, Lu Kai sieve, one in electromagnetic vibrating screen.
7. the concentrate slurry highly-efficient processing device being suitable for long-distance transportation through pipeline according to claim 1, is characterized in that: described concentrate concentration basin (8) is gravity concentration tank, floatation thickening pond, one in Thickener with inclined boards or inclined tube concentration basin.
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CN103394401B (en) * | 2013-08-07 | 2015-03-11 | 四川安宁铁钛股份有限公司 | Coarse-particle iron ore raw pulp quality and concentration control method used in pipeline transportation |
CN103691538B (en) * | 2014-01-10 | 2016-08-17 | 重钢西昌矿业有限公司 | A kind of grinding classification system of Ore |
CN103953852B (en) * | 2014-04-24 | 2017-10-10 | 云南大红山管道有限公司 | A kind of buffer storage and Slurry Pipeline Transportation system |
CN106111303B (en) * | 2016-08-25 | 2018-02-09 | 中冶北方(大连)工程技术有限公司 | A kind of mill of magnetic iron ore underground mill selects system |
CN106311453A (en) * | 2016-08-30 | 2017-01-11 | 襄阳泽东化工集团有限公司 | Device for closed cycle phosphorite wet ball grinding and ball grinding method |
CN107552220B (en) * | 2017-08-30 | 2020-04-10 | 玉溪大红山矿业有限公司 | Safe ore screening optimization process capable of effectively improving yield of concentrate |
CN110273658A (en) * | 2019-07-26 | 2019-09-24 | 西南石油大学 | A kind of modularization sledge mill thermal analysis apparatus handling oil-contained drilling cuttings |
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