CN106563553B - A kind of crushing system and crushing process of iron ore underground mill - Google Patents
A kind of crushing system and crushing process of iron ore underground mill Download PDFInfo
- Publication number
- CN106563553B CN106563553B CN201610718160.9A CN201610718160A CN106563553B CN 106563553 B CN106563553 B CN 106563553B CN 201610718160 A CN201610718160 A CN 201610718160A CN 106563553 B CN106563553 B CN 106563553B
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- crushing
- workshop
- feed hopper
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- screening
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The present invention relates to a kind of crushing systems and crushing process of iron ore underground mill, it is characterized in that be mainly made of coarse crushing workshop, middle crushing plant, screen house, fine crushing workshop and examination and repair system, coarse crushing workshop, middle crushing plant, screen house and fine crushing workshop according to operation sequencing along mining plants haulage drift vertical direction stepped arrangement from top to bottom.It is 600mm 1000mm lump ores through primary mill, middle crusher and the broken ore grain size of type fine disintegrating machine is 20mm 30mm that its crushing process, which is the granularity that will be produced, then feeds the undersize of vibrating screen and feed the roughing operation that mill selects system through pump.Low energy consumption by the present invention, does not take up an area table land used, environmental protection, system can be selected to provide acceptable material for follow-up mill.
Description
Technical field
The invention belongs to magnetite separation technical fields, a kind of crushing system more particularly, to iron ore underground mill and
Crushing process.
Background technology
Iron ore beneficiating factory is that the iron ore for coming out underground mining passes through the techniques such as broken, mill, choosing to beneficial to metallic iron progress
The factory of enrichment.Current magnetite separation factory build earth's surface in, and ore dressing plant itself can occupy part earth's surface soil, the tail of ore dressing
Mine, barren rock processing is bad be easy to cause environmental pollution, and the accumulation of these ore dressing wastes is also required to occupy larger soil, these
Soil is accumulated to recycle almost without method.Earth's surface is built in ore dressing plant in, and the tailing and barren rock of ore dressing are also deposited in earth's surface, this will lead to ground
Lower the goaf of large area occur, these goafs are easy to collapse and occur some geological disasters, to avoid the occurrence of similar danger,
Current country also requires waste such as tailing and barren rock that ore dressing generates refilling go back to Goaf Area.Current earth's surface ore dressing plant
It needs first to promote ore to earth's surface, the tailing and barren rock refilling Goaf Area, complex process, energy consumption after choosing are higher.And
Iron ore beneficiating factory is built in underground can be with the effective solution above problem.Iron ore beneficiation must be first by ore reduction to suitable mill
The granularity of system is selected, to build underground mill just firstly the need of solving the problems, such as underground crushing system.
Invention content
The object of the present invention is to provide one kind, low energy consumption, does not take up an area table land used, environmental protection, system can be selected to provide conjunction for follow-up mill
The crushing system and crushing process of the iron ore underground mill of lattice raw material.
The system of the present invention is mainly by coarse crushing workshop, middle crushing plant, screen house, fine crushing workshop and examination and repair system
It constitutes, coarse crushing workshop, middle crushing plant, screen house and fine crushing workshop are transported according to the sequencing of operation along mining plants
Stepped arrangement, inspection-pit are arranged in the side of the crushing system of iron ore underground mill the vertical direction in tunnel from top to bottom,
Maintenance well head is located above earth's surface；
The coarse crushing workshop is equipped with coarse crushing feed hopper, the coarse crushing feed in this coarse crushing feed hopper lower part is arranged
Belt feeder and the primary mill in coarse crushing belt feeder lower part is set；
The middle crushing plant is crushed feed hopper, broken feed skin in broken feed hopper lower part is arranged in being equipped with
Band machine and setting are crushed crusher in belt feeder lower part in；
The screen house is equipped with screening feed hopper, is arranged and is sieving the screening belt feeder of feed hopper lower part and setting
Set the vibrating screen in screening belt feeder lower part；
The fine crushing workshop is equipped with fine crushing feed hopper, the fine crushing feed skin in fine crushing feed hopper lower part is arranged
Band machine and type fine disintegrating machine.
Further, the sieve pore of the vibrating screen is≤8mm.
Further, the examination and repair system includes the maintenance crane I being arranged in coarse crushing workshop, one end and coarse crushing vehicle
Between connect, the other end is connect with the Over-size transport channel I being connected to inspection-pit；The maintenance crane being arranged in middle crushing plant
II, one end is connect with middle crushing plant, and the other end is connect with the Over-size transport channel II being connected to inspection-pit；It is arranged in screening car
Interior maintenance crane III, one end is connect with screen house, and the other end is connect with the Over-size transport channel III being connected to inspection-pit
With the maintenance crane IV being arranged in fine crushing workshop, one end is connect with fine crushing workshop, what the other end was connected to with inspection-pit
Over-size transport channel IV connects.
Further, the stepped arrangement is that middle crushing plant is arranged in Side before the lower section in coarse crushing workshop, screening car
Between be arranged in Side before the lower section of middle crushing plant, fine crushing workshop is arranged on front side of the lower section of screen house.
The present invention a kind of iron ore underground mill crushing process, it is characterised in that by the granularity produced be 600mm-
1000mm lump ores feed primary mill through the coarse crushing belt feeder under coarse crushing feed hopper storehouse, the grain after coarse crushing
The ore gravity flow that degree is 150mm-200mm is crushed feed hopper in feeding, and is crushed in feed hopper lower part in and is crushed feeding belt
Machine feeds middle crusher, and the granularity in after crusher in crushing is the ore of 50mm-80mm, and gravity flow feeds the screening of screening operation
The screening belt feeder of feed hopper, screened feed hopper lower part feeds vibrating screen, and vibrating screen and the upper ore gravity flow of sieve feed thin
Broken feed hopper, the fine crushing belt feeder through fine crushing feed hopper lower part feed type fine disintegrating machine, after type fine disintegrating machine is broken
Ore grain size be 20mm-30mm, feed belt feeder conveying return in be crushed feed hopper form closed circuit, the undersize of vibrating screen
The roughing operation that mill selects system is fed through pump.
Further, the screening operation is wet screening, screen size≤8mm, screening efficiency >=85%.
Advantages of the present invention：
1）The entire crushing system of system of the present invention is respectively positioned on mining plants underground, coarse crushing system, middle crushing system, screening
System and fine crushing system according to operation sequencing along mining plants haulage drift vertical direction ladder-like cloth from top to bottom
It sets, is conducive to utilize height difference, realizes the gravity flow of material, effectively reduce the energy consumption, and be not take up any ground soil, save
Land used；
2）Since screening operation of the present invention is adopted as wet screening, the undersize of screening system is ore pulp, maximum particle size
For 8-3mm, it can be used as mill and the coarse grain of system selected to preselect operation, can be used as filling raw material after the tailing ore pulp of roughing is concentrated, from
And realize the filling of coarse-grained material, the advantageous waste material that ensure that entire ore-sorting system can be used as casting resin for fill work
Industry.Not only goaf is filled in this way, but also eliminates this part tailing as a part for raw ore and is promoted to earth's surface
When（Earth's surface ore dressing plant is exactly that raw ore is directly promoted to earth's surface）Energy consumption, play the role of energy-saving and environment-friendly.
Description of the drawings
Fig. 1 is the crushing system structural schematic diagram of iron ore underground mill of the present invention.
Specific implementation mode
The specific implementation mode further illustrated the present invention below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of crushing system of iron ore underground mill of the present invention, it is characterised in that mainly by coarse crushing
Workshop, middle crushing plant, screen house, fine crushing workshop and examination and repair system are constituted, coarse crushing workshop, middle crushing plant, screening
Workshop and fine crushing workshop according to operation sequencing along mining plants haulage drift vertical direction ladder-like cloth from top to bottom
It sets, inspection-pit 23 is arranged in the side of the crushing system of iron ore underground mill, and maintenance well head is located above earth's surface；The rank
Ladder arrangement is that middle crushing plant is arranged in Side before the lower section in coarse crushing workshop, and screen house is arranged in the lower section of middle crushing plant
Preceding Side, fine crushing workshop are arranged on front side of the lower section of screen house.
The coarse crushing workshop is equipped with coarse crushing feed hopper 1, coarse crushing in this 1 lower part of coarse crushing feed hopper is set to
Expect belt feeder 2 and the primary mill 3 in coarse crushing belt feeder lower part 2 is set；
The middle crushing plant is crushed feed hopper 4, broken feed in broken 4 lower part of feed hopper is arranged in being equipped with
Belt 5 and setting are crushed crusher 6 in 5 lower part of belt feeder in；
The screen house is equipped with screening feed hopper 7, the screening belt feeder 8 in 7 lower part of screening feed hopper is arranged
With the vibrating screen 9 in screening belt feeder 8 lower part is set, the sieve pore of the vibrating screen 9 is≤8mm；
The fine crushing workshop is equipped with fine crushing feed hopper 10, fine crushing in 10 lower part of fine crushing feed hopper is set to
Expect belt feeder 11 and type fine disintegrating machine 12；
Further, examination and repair system of the present invention includes the maintenance crane I 15 being arranged in coarse crushing workshop, one end with
Coarse crushing workshop connects, and the other end is connect with the Over-size transport channel I 16 being connected to inspection-pit 23；It is arranged in middle crushing plant
Maintenance crane II 17, one end connect with middle crushing plant, the Over-size transport channel II 18 that the other end is connected to with inspection-pit 23
Connection；The maintenance crane III 19 being arranged in screen house, one end is connect with screen house, and the other end is connected to with inspection-pit 23
The connection of Over-size transport channel III 20 and the maintenance crane IV 21 that is arranged in fine crushing workshop, one end connect with fine crushing workshop
It connects, the other end is connect with the Over-size transport channel IV 22 being connected to inspection-pit 23.Maintenance where the maintenance crane of each system
Area transports earth's surface to by Over-size transport channel and inspection-pit, convenient to overhaul.
The present invention a kind of iron ore underground mill crushing process, it is characterised in that by the granularity produced be 600mm-
1000mm lump ores feed primary mill 3 through coarse crushing feed hopper 1, coarse crushing belt feeder 2, broken through primary mill 3
The ore gravity flow that granularity afterwards is 150mm-200mm is crushed feed hopper 4 in feeding, and is crushed in 4 lower part of feed hopper and is crushed in
Belt feeder 5 feeds middle crusher 6, and the ore gravity flow that the granularity in after crusher in crushing is 50mm-80mm feeds screening
The screening feed hopper 7 of operation, the screening belt feeder 8 of 7 lower part of screened feed hopper feed vibrating screen 9, under the sieve of vibrating screen 9
Ore gravity flow feeds fine crushing feed hopper 10, and the fine crushing belt feeder 11 through 10 lower part of fine crushing feed hopper feeds fine crushing
Machine 12, through 12 broken ore grain size of type fine disintegrating machine be 20mm-30mm, feed belt feeder 13,14 conveying return fine crushing to
Feed bin 10 forms closed circuit, and the undersize of vibrating screen 9 feeds the roughing operation that mill selects system through pump.
Screening operation of the present invention is wet screening, screen size≤8mm, screening efficiency >=85%.
Since screening operation of the present invention is adopted as wet screening, the undersize of screening system is ore pulp, and maximum particle size is
8-3mm can be used as mill and the coarse grain of system selected to preselect operation, can be used as filling raw material after the tailing ore pulp of roughing is concentrated, to
Realize the filling of coarse-grained material, the advantageous waste material that ensure that entire ore-sorting system can be used as casting resin for fill work
Industry.Not only goaf is filled in this way, but also eliminates this part tailing as a part for raw ore and is promoted to earth's surface
When（Earth's surface ore dressing plant is exactly that raw ore is directly promoted to earth's surface）Energy consumption, play the role of energy-saving and environment-friendly.
Claims (3)
1. a kind of crushing system of iron ore underground mill, it is characterised in that mainly by coarse crushing workshop, middle crushing plant, screening
Workshop, fine crushing workshop constitute, coarse crushing workshop, middle crushing plant, screen house and fine crushing workshop according to operation priority
Vertical direction from top to bottom stepped arrangement of the sequence along mining plants haulage drift, it is characterised in that further include examination and repair system,
The coarse crushing workshop is equipped with coarse crushing feed hopper, the coarse crushing feeding belt in this coarse crushing feed hopper lower part is arranged
Machine and the primary mill in coarse crushing belt feeder lower part is set；
The middle crushing plant is crushed feed hopper, broken belt feeder in broken feed hopper lower part is arranged in being equipped with
With the middle crusher that broken belt feeder lower part is arranged in；
The screen house is equipped with screening feed hopper, is arranged and exists in the screening belt feeder of screening feed hopper lower part and setting
Sieve the vibrating screen of belt feeder lower part；
The fine crushing workshop is equipped with fine crushing feed hopper and the fine crushing feeding belt in fine crushing feed hopper lower part is arranged
Machine and type fine disintegrating machine；
The examination and repair system includes the maintenance crane I being arranged in coarse crushing workshop, and one end is connect with coarse crushing workshop, another
End is connect with the Over-size transport channel I being connected to inspection-pit；The maintenance crane II being arranged in middle crushing plant, one end are broken in
Broken workshop connection, the other end are connect with the Over-size transport channel II being connected to inspection-pit；The maintenance being arranged in screen house is hung
Vehicle III, one end is connect with screen house, and the other end connect with the Over-size transport channel III being connected to inspection-pit and is arranged in thin broken
Maintenance crane IV in broken workshop, one end are connect with fine crushing workshop, the Over-size transport channel that the other end is connected to with inspection-pit
IV connection；
The stepped arrangement is that middle crushing plant is arranged in Side before the lower section in coarse crushing workshop, and screen house is broken in being arranged in
Side before the lower section in broken workshop, fine crushing workshop are arranged on front side of the lower section of screen house.
2. the crushing system of iron ore underground mill according to claim 1, it is characterised in that the sieve of the vibrating screen
Hole is≤8mm.
3. a kind of crushing process of iron ore underground mill, it is characterised in that by the granularity produced be 600mm-1000mm bulks
Ore feeds primary mill through the coarse crushing belt feeder under coarse crushing feed hopper storehouse, and the granularity after coarse crushing is 150mm-
The ore gravity flow of 200mm is crushed feed hopper in feeding, and is crushed in feed hopper lower part to be crushed during belt feeder is fed in and break
Broken machine, the ore that the granularity in after crusher in crushing is 50mm-80mm, gravity flow feed the screening feed hopper of screening operation, warp
The screening belt feeder of screening feed hopper lower part feeds vibrating screen, and vibrating screen and the upper ore gravity flow of sieve feed fine crushing feed
Storehouse, the fine crushing belt feeder through fine crushing feed hopper lower part feed type fine disintegrating machine, through the broken ore grain of type fine disintegrating machine
Degree is 20mm-30mm, feeds belt feeder conveying and returns to fine crushing feed hopper and is formed closed circuit, and the undersize of vibrating screen is fed through pump
Mill selects the roughing operation of system；The screening operation is wet screening, screen size≤8mm, screening efficiency >=85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610718160.9A CN106563553B (en) | 2016-08-25 | 2016-08-25 | A kind of crushing system and crushing process of iron ore underground mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610718160.9A CN106563553B (en) | 2016-08-25 | 2016-08-25 | A kind of crushing system and crushing process of iron ore underground mill |
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| Publication Number | Publication Date |
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| CN106563553A CN106563553A (en) | 2017-04-19 |
| CN106563553B true CN106563553B (en) | 2018-08-14 |
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| CN201610718160.9A Active CN106563553B (en) | 2016-08-25 | 2016-08-25 | A kind of crushing system and crushing process of iron ore underground mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110700835B (en) * | 2019-11-07 | 2021-08-06 | 北京矿冶科技集团有限公司 | Shallow underground mining, selecting and charging integrated system for lead-zinc ores |
| CN113058727B (en) * | 2021-03-26 | 2022-09-27 | 中冶北方（大连）工程技术有限公司 | Coarse crushing and medium crushing underground arrangement system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CA2440312A1 (en) * | 2003-09-04 | 2005-03-04 | S. Ramsis Shehata | Single pass crushing flowsheet |
| CN102773142B (en) * | 2012-05-31 | 2014-04-02 | 安徽大昌矿业集团有限公司 | Anshan type lean magnetite underground ore dressing and filling method |
| CN203448161U (en) * | 2013-09-06 | 2014-02-26 | 安徽新中远化工科技有限公司 | Crushing system |
| CN103590851A (en) * | 2013-10-25 | 2014-02-19 | 玉溪矿业有限公司 | Underground waste-rock concrete preparation, pumping and filling system and method |
| CN203764371U (en) * | 2014-04-03 | 2014-08-13 | 张天娇 | Crushing and transport system for deep mined ore |
| CN104033153A (en) * | 2014-06-25 | 2014-09-10 | 中国矿业大学 | Coal mine underground mining, dress and filling integral method |
| CN204746555U (en) * | 2015-05-29 | 2015-11-11 | 天地科技股份有限公司 | Colliery is two washing systems in pit |
| CN105413842B (en) * | 2015-12-16 | 2016-11-16 | 中冶沈勘秦皇岛工程技术有限公司 | The ore-dressing technique of Ultra-low-grade magnetite and system |
| CN205966127U (en) * | 2016-08-25 | 2017-02-22 | 中冶北方（大连）工程技术有限公司 | Broken system in iron ore underground ore dressing plant |
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