CN109701725A - A kind of balance method of underground tailing charging quantity and mineral processing production tailing amount - Google Patents
A kind of balance method of underground tailing charging quantity and mineral processing production tailing amount Download PDFInfo
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- CN109701725A CN109701725A CN201910038831.0A CN201910038831A CN109701725A CN 109701725 A CN109701725 A CN 109701725A CN 201910038831 A CN201910038831 A CN 201910038831A CN 109701725 A CN109701725 A CN 109701725A
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Abstract
The present invention relates to the balance methods of a kind of underground tailing charging quantity and mineral processing production tailing amount, tailing on sieve including Mineral Dressing Process process output, sieve lower tailing and magnetic tailing, it is characterized by: being equipped with spare tailing grinding machine again in the lower section for sieving upper tailing tailing bin, it is equipped with buffering by Tailing thickening pusher side and adjusts stirred tank and tailings pump II, buffering adjusts being connected to mine end with Tailing thickening machine mineral-feeding pipe and underflow conveyance conduit for stirred tank, buffering adjusts stirred tank and is connected by tailings pump II and conveyance conduit with Tailing thickening machine input terminal, it constitutes closed circuit, pipeline is all provided with valve control；The invention has the advantages that the tailing amount of stable regulation control dressing plant's production and the matching of underground tailing charging quantity, guarantee to pick up line balancing；Using full tail filling mining method, dressing plant no longer needs to build Tailings Dam, and non-environmental-pollution is environmentally protective, meets clean manufacturing, the national industrial policies of circular economy.
Description
Technical field
The invention belongs to mineral engineering technical field of beneficiation, and in particular to a kind of underground tailing charging quantity and mineral processing production tail
The balance method of mine amount.
Background technique
The exploitation of China's iron ore mineral resources is usually associated with the destruction of ecological environment, the requirement of Environmental protection
Increasingly increase, environmental pollution, which destroys few mining and mill run method and is only mineral engineering, continues the direction of development, meets state
The clean manufacturing that family advocates, recycling economy requirement.Many iron ore mines solve tailings pollution environment using full tail filling method at present
A great problem, the tailing that dressing plant produces all is filled to underground, accomplished not build Tailings Dam.But since underground mining is built
If the period is long, ore properties variation is complicated, and the ore of different zones is that often nature difference is larger, and dressing plant is tested and design
Mining engineering is lagged behind, therefore uses the mine of full tail filling at the beginning of design often to the tailing amount and mineral processing production of filling needs
Tailing amount estimation do not prepare, cause production in as ore properties change, milltailings amount fluctuation it is very big, and fill need
Tailing amount it is relatively fixed, production mismatches, and when more tailings are produced in ore dressing, this part tailing will carry out landing discharge,
It polluted environment, while also the later period being needed to take over the land for use, and country limits strictly tailings discharging, causes to stop production.If mineral processing production goes out
Tailing it is few when, then the tailing amount that underground filling needs is inadequate, placement method is restricted, and can not be normally carried out mining and be made
Industry, it is same to stop production, it is serious to constrain mining production.Therefore the tailing of dressing plant's production has to comply with underground mining filling tailing and needs
The amount of asking.
Ma Chengtiekuang is maximum iron ore selecting engineering of the China using the filling of full tail, and year processing iron ore ability reaches
22000000 t/a.It is mentioned simultaneously using ore-rock is mixed, rock amount is 1,150,000 t/a.The mine amount for always feeding dressing plant is 23,150,000 t/a.Through
Mining correlation technique calculates about 9,200,000 t/a of tailing amount that its full tail filling needs, and tailing fineness is less than 1mm.Beneficiation method is adopted
Rank magnetic separation side is ground with the necessary -3mm wet type pre-selecting-rank of dry separation-high pressure roller mill on big granularity dry separation-tri- section crushing and screening-sieve
Granularity is controlled to become together in 1mm or less with magnetic tailing after ore grinding and finally be fed by method, 3mm preliminary rejection after dewatering screen
The tailing of filling system.Since the deposit scale is huge, different zones original ore property difference is larger, and raw ore magnetism iron content exists
Within the scope of 20-30%, according to beneficiation test as a result, when different raw ore, the tailing amount produced using Mineral Processing CAD process is 800
Ten thousand t/a-1150, ten thousand t/a.It necessarily will appear milltailings amount and the filling unmatched situation of tailing demand in production, cause to give birth to
Bottleneck is produced, can not normally be produced；Tailing amount is filled according to mining progress simultaneously, and ore properties can also change.Therefore, how root
According to filling tailing demand, matching the tailing amount of dressing plant's output substantially with it is a urgent problem to be solved.
The present invention, which is directed to, picks up engineering using the magnetic iron ore of this full tail filling mining method of horse subway mine, designs a fitting
Reason, adaptable tailing balance method can be stablized with the variation and filling tailing demand of extracted ore property
The tailing amount that mineral processing production goes out, keeps mill tailings flux matched, makes to pick up line balancing, no longer needs to build tailings discharging facility, nothing
Wet tailing outlet, non-environmental-pollution is environmentally protective, meets clean manufacturing, the national industrial policies of circular economy.
Summary of the invention
The object of the present invention is to provide the balance methods of a kind of underground tailing charging quantity and mineral processing production tailing amount, to solve
Full tail filling method picks up the problem of uncoordinated influence produces, especially magnet mine using tailing mining with stowing present in implementing
The selecting engineering problem of method.
The present invention is achieved through the following technical solutions:
The balance method of a kind of underground tailing charging quantity and mineral processing production tailing amount of the invention, including magnet green ore is by broken
Broken machine, dry separation magnetic pulley, high-pressure roller mill, pre-selection magnetic separator, screening machine, the broken of ball mill and magnetic separator, ore grinding, screening and
Processing is sorted, the upper tailing of magnetic concentrate, sieve is obtained respectively, sieves lower tailing and magnetic tailing, sieves above tail wherein sieving upper tailing and feeding
Ore storage bin is spare, feeds Tailing thickening pumping system, the Tailing thickening pumping system after magnetic tailing and the lower tailing merging of sieve
It is connected with stope underground tailing filling system, it is characterised in that:
The Tailing thickening pumping system includes the Tailing thickening connecting with the lower tailing ore discharge pipe of sieve and magnetic tailing ore discharge pipe
Machine mineral-feeding pipe, the Tailing thickening machine connecting with Tailing thickening machine mineral-feeding pipe, tailing is again on the sieve connecting respectively with Tailing thickening machine
Grinding system is gentle to reconstitute section stirring system and Tailings transportation pipeline, and tailings pump I is equipped on Tailings transportation pipeline,
It buffers and adjusts the side that Tailing thickening machine is arranged in stirring system, including buffering adjusts stirred tank, buffering adjusts stirring
Slot mineral-feeding pipe and tailings pump II, it is two-way that buffering, which adjusts stirred tank mineral-feeding pipe, passes through mineral-feeding pipe road I and valve I and tailing all the way
Thickener mineral-feeding pipe is connected, and another way is connected by mineral-feeding pipe road II and valve II with Tailings transportation pipeline, the buffering
Adjusting stirred tank also passes through tailings pump II and conveyance conduit and is connected with Tailing thickening machine, constitutes closed circuit；
It is equipped with valve III on Tailing thickening machine mineral-feeding pipe, valve IV is equipped on Tailings transportation pipeline；
It is equipped with valve III on Tailing thickening machine mineral-feeding pipe, valve IV is equipped on Tailings transportation pipeline；
When tailing output is less than stope underground tailing charging quantity when the magnetic tailing in dressing plant and under sieving, start spare tailing again
Grinding machine, tailing, which is regrinded to feed tailing to mine belt feeder and regrind machine by tailing, on the sieve on sieve in tailing bin carries out ore grinding, tailing
The ore discharge of grinding machine feeds Tailing thickening machine mineral-feeding pipe by conveyance conduit again, and supplement adjusts stope underground tailing filling system to choosing
The demand of mine production tailing；
When mineral processing production tailing amount is greater than stope underground tailing charging quantity or when stope underground tailing filling system goes wrong, closes
Spare tailing grinding machine again is closed, stirred tank is adjusted using buffering and is adjusted, valve I is opened by tailing and is switched to the storage of tailing stirred tank；
Tailing is fed into Tailing thickening through tailings pump II when stope underground tailing fills demand deficiency, then by tailing stirred tank
Machine, to adjust the balance between mineral processing production tailing amount and stope underground tailing filling demand.
The buffer time of tailing stirred tank is designed as 8 hours.
The screening machine is made of two groups of linear vibrating screens that screen size is 1mm and 0.5mm, one group of work, and one group
It is spare.
The tailing regrind to mine belt feeder be frequency conversion belt feeder, and tailing regrind on mine belt feeder be equipped with belt
Scale.
It is equipped with grade instrument I, flow meter I and densimeter I on Tailing thickening machine mineral-feeding pipe, is equipped on Tailings transportation pipeline
Grade instrument II, flow meter II and densimeter II are used for survey calculation Tailings transportation amount t/h hourly, and tailings pump I and tailing are defeated
It send quantitative change frequency chain, adjusts the mineral processing production tailing amount that control is delivered to stope underground tailing filling system, be allowed to and underground tail
Mine charging quantity balance.
Compared with prior art, the invention has the advantages that
The present invention picks up engineering using the magnetic iron ore of full tail filling mining method, devises adaptable mineral processing production tailing amount
With stope underground tailing charging quantity balance method.It, can be with extracted ore property by reasonable technological design and arrangement
The demand of variation and the filling of stope underground tailing, stable regulation control the tailing amount of dressing plant's production, are allowed to match, and guarantee
Pick up line balancing.
Using full tail filling mining method, dressing plant no longer needs to build Tailings Dam, and without wet tailing outlet, non-environmental-pollution is green
Colour circle is protected, and clean manufacturing, the national industrial policies of circular economy are met.
Detailed description of the invention
Fig. 1 is structural schematic block diagram of the invention.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, the balance method of a kind of underground tailing charging quantity of the invention and mineral processing production tailing amount, including magnetic
Iron ore raw ore is by crusher 1, dry separation magnetic pulley 2, high-pressure roller mill 3, pre-selection magnetic separator 4, screening machine 5, ball mill 7 and magnetic separation
Machine 8 it is broken, ore grinding, sieve and sort processing, obtain that magnetic concentrate, tailing, sieve descend tailing and magnetic tailing on sieve respectively,
It is spare to feed the upper tailing bin 6 of sieve for tailing on middle sieve, magnetic tailing and sieves after lower tailing merges and feeds Tailing thickening pumping system, institute
The Tailing thickening pumping system stated is connected with stope underground tailing filling system, it is characterised in that:
The Tailing thickening pumping system includes the tailing connecting with the lower tailing ore discharge pipe 29 of sieve and magnetic tailing ore discharge pipe 28
Thickener mineral-feeding pipe 30, the Tailing thickening machine 16 connecting with Tailing thickening machine mineral-feeding pipe are connect with Tailing thickening machine 16 respectively
Gentle reconstitute of grinding system saves stirring system and Tailings transportation pipeline to tailing again on sieve, and tailings pump I is equipped on Tailings transportation pipeline
17,
It buffers and adjusts the side that Tailing thickening machine 16 is arranged in stirring system, including buffering adjusts stirred tank 12, buffering is adjusted
Stirred tank mineral-feeding pipe and tailings pump II 15, it is two-way that buffering, which adjusts stirred tank mineral-feeding pipe, passes through mineral-feeding pipe road I 14 and valve all the way
I 27 are connected with Tailing thickening machine mineral-feeding pipe 30, and another way passes through mineral-feeding pipe road II 13 and valve II 18 and Tailings transportation pipeline
31 are connected, and the buffering adjusts stirred tank 12 and is also connected by tailings pump II 15 and conveyance conduit with Tailing thickening machine 16,
It constitutes closed circuit；
It is equipped with valve III 23 on Tailing thickening machine mineral-feeding pipe 30, valve IV 19 is equipped on Tailings transportation pipeline；
When tailing output is less than stope underground tailing charging quantity when the magnetic tailing in dressing plant and under sieving, start spare tailing again
Grinding machine 11, tailing is regrinded to feed tailing to mine belt feeder 9 and regrind machine 11 by tailing and be ground on the sieve on sieve in tailing bin 6
Mine, the ore discharge that tailing regrinds machine 11 feed Tailing thickening machine mineral-feeding pipe 30 by conveyance conduit, and supplement adjusts stope underground tailing
Demand of the filling system to mineral processing production tailing；
When mineral processing production tailing amount is greater than stope underground tailing charging quantity or when stope underground tailing filling system goes wrong, closes
It closes spare tailing and regrinds machine 11, stirred tank 12 is adjusted using buffering and is adjusted, open valve I 27 for tailing and be switched to tailing stirred tank
12 storages；Tailing is fed through tailings pump II 15 when stope underground tailing fills demand deficiency, then by tailing stirred tank 12
To Tailing thickening machine 16, to adjust the balance between mineral processing production tailing amount and stope underground tailing filling demand.
The present invention is equipped with grade instrument I 24, flow meter I 25 and densimeter I 26 on Tailing thickening machine mineral-feeding pipe 30, in tailing
Conveyance conduit 31 is equipped with grade instrument II 20, flow meter II 21 and densimeter II 22, defeated for survey calculation tailing hourly
The amount of sending t/h.Being regrinded due to tailing of the present invention to mine belt feeder 9 is frequency conversion belt feeder, and regrinds in tailing and give barrow band
Machine 9 is equipped with weighing belt 10, and tailings pump I 17 and Tailings transportation amount are that frequency conversion is chain, adjusts control and is delivered to stope underground tailing
The mineral processing production tailing amount of filling system is allowed to balance with underground tailing charging quantity.
Screening machine 5 of the present invention is made of two groups of linear vibrating screens that screen size is 1mm and 0.5mm, one group of work
Make, one group spare.Efficiently avoid the phenomenon that the repairing that stop production caused by because of setting failure.
Mineral processing production tailing amount is adjusted in order to efficiently control, present invention employs following measures:
1) grade instrument II 20, flow meter II 21 and the densimeter II 22 being equipped on Tailings transportation pipeline 31, being capable of survey calculation
Dressing plant is delivered to the Tailings transportation amount t/h of underground tailing filling system out, and tailings pump I 17 and Tailings transportation quantitative change frequency connect
Lock, control are delivered to the tailing amount of underground tailing filling system, when tailing filling system tailing amount needs to increase when underground, tailing
I 17 increase revolving speeds are pumped, conveying tailing amount is improved；When underground, tailing filling system tailing amount needs to reduce, tailings pump I 17 is reduced
Revolving speed reduces conveying tailing amount；
2) pre-selection 4 progress -3mm of magnetic separator throws tail operation, and it is 1mm straight-line oscillation that -3mm, which preselects magnetic tailing or enters screen size,
Sieve screening, or enter the linear vibrating screen screening of screen size 0.5mm and 0.5mm, tailing amount is more under the sieve of big sieve pore, small sieve pore
Sieve under tailing amount it is few, the tailing amount for being transported to Tailing thickening pumping system can be increased or decreased, to increase or decrease defeated
It is sent to the mineral processing production tailing amount of underground tailing filling system；
3) start or close spare tailing and regrind machine 11, the tailing for being transported to Tailing thickening pumping system can be increased or decreased
Amount, to increase or decrease the mineral processing production tailing amount for being transported to underground tailing filling system；
4) it is crushed rear 2 frequency control of dry separation magnetic pulley and is equipped with weighing belt and subtracted by reducing or increasing by 2 revolving speed of dry separation magnetic pulley
Less or increase dry separation throwing tail barren rock amount, increases or decreases the mine-supplying quantity for being elected to be industry into mill, that is, increase or decrease and be transported to underground
The mineral processing production tailing amount of tailing filling system；
5) when mineral processing production tailing amount and little tailing charging quantity fluctuation in stope underground, stirred tank 12 is adjusted using buffering and is adjusted
Section, perhaps open valve I 27 by tailing be switched to tailing stirred tank 12 store or again by tailing stirred tank 12 by tailing through tail
Mine pump II 15 feeds Tailing thickening machine 16, is adjusted between mineral processing production tailing amount and stope underground tailing filling demand at any time
Balance；The buffer time of tailing stirred tank 12 is 8 hours.
The present invention picks up engineering using the magnetic iron ore of full tail filling mining method, devises adaptable mineral processing production tail
Mine amount and stope underground tailing charging quantity balance method.It, can be with extracted ore by reasonable technological design and arrangement
The demand of the variation of matter and the filling of stope underground tailing, stable regulation control the tailing amount of dressing plant's production, are allowed to match,
Guarantee to pick up line balancing.
Using full tail filling mining method, dressing plant no longer needs to build Tailings Dam, and without wet tailing outlet, non-environmental-pollution is green
Colour circle is protected, and clean manufacturing, the national industrial policies of circular economy are met.
Claims (5)
1. the balance method of a kind of underground tailing charging quantity and mineral processing production tailing amount, including magnet green ore by crusher,
Dry separation magnetic pulley, preselects being crushed, ore grinding, sieving and sort for magnetic separator, screening machine, ball mill and magnetic separator at high-pressure roller mill
Processing obtains the upper tailing of magnetic concentrate, sieve respectively, sieves lower tailing and magnetic tailing, sieves above tailing bin wherein sieving upper tailing and feeding
It is spare, magnetic tailing and sieve and feed Tailing thickening pumping system after lower tailing merges, the Tailing thickening pumping system with adopt
Field underground tailing filling system is connected, it is characterised in that:
The Tailing thickening pumping system includes the Tailing thickening connecting with the lower tailing ore discharge pipe of sieve and magnetic tailing ore discharge pipe
Machine mineral-feeding pipe, the Tailing thickening machine connecting with Tailing thickening machine mineral-feeding pipe, tailing is again on the sieve connecting respectively with Tailing thickening machine
Grinding system is gentle to reconstitute section stirring system and Tailings transportation pipeline, and tailings pump I is equipped on Tailings transportation pipeline；
The buffering adjusts the side that Tailing thickening machine is arranged in stirring system, including buffering adjusts stirred tank, buffering is adjusted
Stirred tank mineral-feeding pipe and tailings pump II, it is two-way that buffering, which adjusts stirred tank mineral-feeding pipe, all the way by mineral-feeding pipe road I and valve I with
Tailing thickening machine mineral-feeding pipe is connected, and another way is connected by mineral-feeding pipe road II and valve II with Tailings transportation pipeline, described
Buffering adjusting stirred tank also passes through tailings pump II and conveyance conduit and is connected with Tailing thickening machine, constitutes closed circuit；In Tailing thickening
Machine mineral-feeding pipe is equipped with valve III, and valve IV is equipped on Tailings transportation pipeline；
When tailing output is less than stope underground tailing charging quantity when the magnetic tailing in dressing plant and under sieving, start spare tailing again
Grinding machine, tailing bin it is spare in sieve on tailing by tailing regrind to mine belt feeder feed tailing regrind machine progress ore grinding, tailing
The ore discharge of grinding machine feeds Tailing thickening machine mineral-feeding pipe by conveyance conduit again, and supplement adjusts stope underground tailing filling system to choosing
The demand of mine production tailing；
When mineral processing production tailing amount is greater than stope underground tailing charging quantity or when stope underground tailing filling system goes wrong, closes
Spare tailing grinding machine again is closed, stirred tank is adjusted using buffering and is adjusted, valve I is opened by tailing and is switched to the storage of tailing stirred tank；
Tailing is fed into Tailing thickening through tailings pump II when stope underground tailing fills demand deficiency, then by tailing stirred tank
Machine, to adjust the balance between mineral processing production tailing amount and stope underground tailing filling demand.
2. the balance method of tailing charging quantity in underground according to claim 1 and mineral processing production tailing amount, it is characterised in that:
The buffer time of tailing stirred tank is designed as 8 hours.
3. the balance method of a kind of underground tailing charging quantity and mineral processing production tailing amount according to claim 1, feature
Be: the screening machine is made of two groups of linear vibrating screens that screen size is 1mm and 0.5mm, and one group of work, one group standby
With.
4. the balance method of a kind of underground tailing charging quantity and mineral processing production tailing amount according to claim 1, feature
Be: the tailing regrind to mine belt feeder be frequency conversion belt feeder, and tailing regrind on mine belt feeder be equipped with weighing belt.
5. the balance method of a kind of underground tailing charging quantity and mineral processing production tailing amount according to claim 1, feature
It is: is equipped with grade instrument I, flow meter I and densimeter I on Tailing thickening machine mineral-feeding pipe, product is equipped on Tailings transportation pipeline
Position instrument II, flow meter II and densimeter II, are used for survey calculation Tailings transportation amount t/h hourly, tailings pump I and Tailings transportation
Quantitative change frequency is chain, adjusts the mineral processing production tailing amount that control is delivered to stope underground tailing filling system, is allowed to and underground tailing
Charging quantity balance.
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| CN201910038831.0A CN109701725B (en) | 2019-01-16 | 2019-01-16 | Method for balancing underground tailing filling amount and tailing amount in mineral separation production |
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