CN106563553A - Crushing system for iron mine underground mill and crushing process - Google Patents
Crushing system for iron mine underground mill and crushing process Download PDFInfo
- Publication number
- CN106563553A CN106563553A CN201610718160.9A CN201610718160A CN106563553A CN 106563553 A CN106563553 A CN 106563553A CN 201610718160 A CN201610718160 A CN 201610718160A CN 106563553 A CN106563553 A CN 106563553A
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- Prior art keywords
- crushing
- workshop
- screening
- feed hopper
- fine
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Classifications
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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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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a crushing system for an iron mine underground mill and a crushing process. The crushing system for the iron mine underground mill is characterized in that the crushing system is mainly composed of a coarse crushing plant, a medium crushing plant, a screening plant, a fine crushing plant and an overhaul system; and the coarse crushing plant, the medium crushing plant, the screening plant and the fine crushing plant are arranged in a stair-step mode from top to bottom in the vertical direction of a mining factory travelling roadway according to the operation sequence. The crushing process includes the steps that after mined lump ore with the particle size being 600mm-1000mm is crushed by a coarse crushing machine, a medium crushing machine and a fine crushing machine, the ore grain size is turned to be 20mm-30mm; and then the undersize product of a vibrating screen is fed into roughing flotation operation of a grinding flotation system through a pump. The crushing system is low in energy consumption, no earth surface land is occupied, environmental protection is achieved, and qualified raw materials can be provided for the subsequent grinding flotation system.
Description
Technical field
The invention belongs to magnetite separation technical field, a kind of crushing system more particularly, to iron mine underground mill and
Crushing process.
Background technology
Iron ore beneficiating factory is that the iron ore by underground mining out is carried out to beneficial metallic iron through techniques such as broken, mill, choosings
The factory of enrichment.Current magnetite separation factory build earth's surface in, and ore dressing plant itself can take part earth's surface soil, the tail of ore dressing
Ore deposit, barren rock process is bad easily causes environmental pollution, and the accumulation of these ore dressing wastes is also required to take larger soil, these
Pile up soil to recycle almost without method.Earth's surface is built in ore dressing plant in, and the mine tailing and barren rock of ore dressing are also deposited in earth's surface, and this will cause ground
Lower there is large-area goaf, and these goafs easily subside and occur some geological disasters, to avoid the occurrence of similar danger,
Current country also requires that and for the waste such as mine tailing and barren rock that ore dressing is produced to refill go back to Goaf Area.Current earth's surface ore dressing plant
Need Ore is lifted to earth's surface first, the mine tailing and barren rock refilling Goaf Area after choosing, complex process, energy consumption are higher.And
Iron ore beneficiating factory is built in underground effectively to solve the above problems.Iron ore beneficiation must be first by ore reduction to suitable mill
The granularity of system is selected, underground mill is built just firstly the need of the difficult problem for solving underground crushing system.
The content of the invention
It is an object of the invention to provide a kind of energy consumption is low, table land used is not taken up an area, environmental protection can select system to provide conjunction for follow-up mill
The crushing system and crushing process of the iron mine 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
Constitute, coarse crushing workshop, middle crushing plant, screen house and fine crushing workshop are transported along mining plants according to the sequencing of operation
The vertical direction in tunnel stepped arrangement from top to bottom, inspection-pit are arranged on the side of the crushing system of iron mine underground mill,
Maintenance well head is located above earth's surface；
Described coarse crushing workshop be provided with coarse crushing feed hopper, arrange this coarse crushing feed hopper bottom coarse crushing feeding belt
Machine and the primary mill for being arranged on coarse crushing belt feeder bottom；
Described middle crushing plant be provided with crush feed hopper, be arranged in crush feed hopper bottom in crush belt feeder
Be arranged in crush belt feeder bottom in disintegrating machine；
Described screen house is provided with screening feed hopper, the screening belt feeder for being arranged on screening feed hopper bottom and is arranged on
The vibrosieve of screening belt feeder bottom；
Described fine crushing workshop is provided with fine crushing feed hopper, is arranged on the fine crushing belt feeder of fine crushing feed hopper bottom
And type fine disintegrating machine.
Further, the sieve aperture of described vibrosieve is≤8mm.
Further, described examination and repair system includes the maintenance crane I being arranged in coarse crushing workshop, one end and coarse crushing car
Between connect, the Over-size transport passage I that the other end is connected with inspection-pit is connected；The maintenance crane II being arranged in crushing plant,
One end is connected with middle crushing plant, and the Over-size transport passage II that the other end is connected with inspection-pit is connected；It is arranged in screen house
Maintenance crane III, one end is connected with screen house, and the Over-size transport passage III that the other end is connected with inspection-pit is connected and arranges
Maintenance crane IV in fine crushing workshop, one end are connected with fine crushing workshop, the Over-size transport that the other end is connected with inspection-pit
(9) passage IV connects.
Further, described 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, plant layout in small, broken bits is on front side of the lower section of screen house.
The present invention a kind of iron mine underground mill crushing process, it is characterised in that by the granularity for producing be 600mm-
Coarse crushing batcher under 1000mm lump ore Jing coarse crushing feed hoppers storehouse feeds primary mill, and the granularity Jing after coarse crushing is
The Ore gravity flow of 150mm-200mm crushes feed hopper in feeding, and crushes belt feeder and give in Jing in crushing feed hopper bottom
Enter middle disintegrating machine, Ore of the granularity in after crusher in crushing for 50mm-80mm, gravity flow feed the screening feed of screening operation
Storehouse, the screening belt feeder of screened feed hopper bottom feed vibrosieve, and vibrosieve and the upper Ore gravity flow of sieve feed fine crushing
Feed hopper, the fine crushing belt feeder of Jing fine crushing feed hoppers bottom feed type fine disintegrating machine, the ore deposit Jing after type fine disintegrating machine is broken
Stone granularity is 20mm-30mm, feeds broken feed hopper during belt feeder conveying is returned and forms closed circuit, the undersize Jing pumps of vibrosieve
Feed that mill selects system roughly selects operation.
Further, described screening operation for wet screening, its screen size≤8mm, screening efficiency >=85%.
Advantages of the present invention：
1）The whole crushing system of system of the present invention is respectively positioned on mining plants underground, coarse crushing system, middle crushing system, screening system
Have along the vertical direction stepped arrangement from top to bottom of mining plants haulage drift according to the sequencing of operation with fine crushing system
The gravity flow of material beneficial to the discrepancy in elevation is utilized, is realized, energy consumption is effectively reduced, and is not take up any ground soil, having saved land used；
2）As 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 select the coarse grain of system to preselect operation as mill, can be as filling raw material, so as to reality after the mine tailing ore pulp roughly selected is concentrated
The filling of coarse-grained material is showed, the favourable waste material that ensure that whole ore-sorting system can be used for packing job as casting resin.
When so not only being filled to goaf, and eliminating this part mine tailing and be promoted to earth's surface as the part of raw ore
（Earth's surface ore dressing plant is exactly that raw ore is promoted to earth's surface directly）Energy consumption, serve the effect of energy-conserving and environment-protective.
Description of the drawings
Fig. 1 is the crushing system structural representation of iron mine underground mill of the present invention.
Specific embodiment
The specific embodiment of the present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of crushing system of iron mine underground mill of the present invention, it is characterised in that main 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 stepped cloth from top to bottom
Put, inspection-pit 23 is arranged on the side of the crushing system of iron mine underground mill, maintenance well head is located above earth's surface；Described 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
Front Side, plant layout in small, broken bits is on front side of the lower section of screen house.
Described coarse crushing workshop be provided with coarse crushing feed hopper 1, arrange this 1 bottom of coarse crushing feed hopper coarse crushing to
Material belt feeder 2 and the primary mill 3 for being arranged on coarse crushing belt feeder bottom 2；
Described middle crushing plant be provided with crush feed hopper 4, be arranged in crush 4 bottom of feed hopper in crush feeding belt
5 and disintegrating machine 6 in 5 bottom of belt feeder is crushed in being arranged on；
Described screen house is provided with screening feed hopper 7, the screening belt feeder 8 for being arranged on 7 bottom of screening feed hopper and sets
The vibrosieve 9 in 8 bottom of screening belt feeder is put, the sieve aperture of described vibrosieve 9 is≤8mm；
Described fine crushing workshop is provided with fine crushing feed hopper 10, is arranged on the fine crushing feed skin of 10 bottom of fine crushing feed hopper
Band machine 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, and one end is broken with thick
Broken workshop connection, the Over-size transport passage I 16 that the other end is connected with inspection-pit 23 are connected；The maintenance being arranged in crushing plant
Crane II 17, one end are connected with middle crushing plant, and the Over-size transport passage II 18 that the other end is connected with inspection-pit 23 is connected；Arrange
Maintenance crane III 19 in screen house, one end is connected with screen house, the Over-size transport that the other end is connected with inspection-pit 23
Passage III 20 connects and the maintenance crane IV 21 that is arranged in fine crushing workshop, and one end is connected with fine crushing workshop, the other end and
The Over-size transport passage IV 22 of the connection of inspection-pit 23 connects.The maintenance area that the maintenance crane of each system is located passes through Over-size transport
Passage and inspection-pit transport earth's surface to, convenient to overhaul.
The present invention a kind of iron mine underground mill crushing process, it is characterised in that by the granularity for producing be 600mm-
1000mm lump ore Jing coarse crushings feed hoppers 1, coarse crushing belt feeder 2 feed primary mill 3, and Jing primary mills 3 are crushed
Granularity afterwards is to crush feed hopper 4 during the Ore gravity flow of 150mm-200mm feeds, and is crushed in crushing 4 bottom of feed hopper in Jing
Belt feeder 5 feeds middle disintegrating machine 6, and the granularity in after crusher in crushing feeds screening for the Ore gravity flow of 50mm-80mm
The screening feed hopper 7 of operation, the screening belt feeder 8 of 7 bottom of screened feed hopper feed vibrosieve 9, under the sieve of vibrosieve 9
Ore gravity flow feeds fine crushing feed hopper 10, and the fine crushing belt feeder 11 of 10 bottom of Jing fine crushings feed hopper feeds fine crushing
Machine 12, the ore grain size Jing after type fine disintegrating machine 12 is broken are 20mm-30mm, feed during the conveying of belt feeder 13,14 is returned crush to
Feed bin 10 forms closed circuit, and what the undersize Jing pumps of vibrosieve 9 fed that mill selects system roughly selects operation.
Screening operation of the present invention for wet screening, its screen size≤8mm, screening efficiency >=85%.
As 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 as mill select system coarse grain preselect operation, after the mine tailing ore pulp roughly selected is concentrated can as filling raw material, so as to
The filling of coarse-grained material is realized, the favourable waste material that ensure that whole ore-sorting system can be used to fill as casting resin to be made
Industry.So not only goaf is filled, and is eliminated this part mine tailing earth's surface is promoted to as a part for raw ore
When（Earth's surface ore dressing plant is exactly that raw ore is promoted to earth's surface directly）Energy consumption, serve the effect of energy-conserving and environment-protective.
Claims (6)
1. a kind of crushing system of iron mine underground mill, it is characterised in that main by coarse crushing workshop, middle crushing plant, screening
Workshop, fine crushing workshop and examination and repair system are constituted, coarse crushing workshop, middle crushing plant, screen house and fine crushing workshop according to
Vertical direction from top to bottom stepped arrangement of the sequencing of operation along mining plants haulage drift,
Described thick broken workshop is provided with coarse crushing feed hopper, arranges coarse crushing belt feeder in this coarse crushing feed hopper bottom
With the primary mill for being arranged on coarse crushing belt feeder bottom；
In described break workshop be provided with crush feed hopper, be arranged in crush feed hopper bottom in crush belt feeder and
It is arranged on disintegrating machine in broken belt feeder bottom；
Described screen house is provided with screening feed hopper, the screening belt feeder for being arranged on screening feed hopper bottom and is arranged on
The vibrosieve of screening belt feeder bottom；
Described fine crushing workshop is provided with fine crushing feed hopper and is arranged on the fine crushing feeding belt of fine crushing feed hopper bottom
Machine and type fine disintegrating machine.
2. the crushing system of iron mine underground mill according to claim 1, it is characterised in that the sieve of described vibrosieve
Hole is≤8mm.
3. the crushing system of iron mine underground mill according to claim 1, it is characterised in that described examination and repair system bag
The maintenance crane I being arranged in coarse crushing workshop is included, one end is connected with the broken workshop of inspection-pit coarse crushing, the other end is connected with inspection-pit
Logical Over-size transport passage I；The maintenance crane II being arranged in crushing plant, one end are connected with inspection-pit coarse crushing workshop,
The Over-size transport passage II that the other end is connected with inspection-pit is connected；The maintenance crane III being arranged in screen house, one end and inspection
Well workover coarse crushing workshop connects, and the Over-size transport passage III that the other end is connected with inspection-pit is connected and is arranged in fine crushing workshop
Maintenance crane IV, one end is connected with inspection-pit coarse crushing workshop, and the Over-size transport passage IV that the other end is connected with inspection-pit is (9)
Connection.
4. the crushing system of iron mine underground mill according to claim 1, it is characterised in that described stepped arrangement
Side before the lower section in coarse crushing workshop is arranged in for middle crushing plant, screen house is arranged in Side before the lower section of middle crushing plant, carefully
Broken plant layout is on front side of the lower section of screen house.
5. a kind of crushing process of iron mine underground mill, it is characterised in that be 600mm-1000mm bulks by the granularity for producing
Coarse crushing batcher under Ore Jing coarse crushing feed hoppers storehouse feeds primary mill, and the granularity Jing after coarse crushing is 150mm-
The Ore gravity flow of 200mm crushes feed hopper in feeding, and crushes during belt feeder feeds and break in Jing in crushing feed hopper bottom
Broken machine, Ore of the granularity in after crusher in crushing for 50mm-80mm, gravity flow feed the screening feed hopper of screening operation, Jing
The screening belt feeder of screening feed hopper bottom feeds vibrosieve, and vibrosieve and the upper Ore gravity flow of sieve feed fine crushing feed
Storehouse, the fine crushing belt feeder of Jing fine crushing feed hoppers bottom feed type fine disintegrating machine, the Ore grain Jing after type fine disintegrating machine is broken
Spend for 20mm-30mm, feed during belt feeder conveying is returned and crush feed hopper and form closed circuit, the undersize Jing pumps of vibrosieve feed
What mill selected system roughly selects operation.
6. the crushing process of a kind of iron mine underground mill according to claim 5, it is characterised in that described screening is made
Industry for wet screening, its 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106563553A true CN106563553A (en) | 2017-04-19 |
| CN106563553B CN106563553B (en) | 2018-08-14 |
Family
ID=58532377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610718160.9A Active CN106563553B (en) | 2016-08-25 | 2016-08-25 | A kind of crushing system and crushing process of iron ore underground mill |
Country Status (1)
| Country | Link |
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| CN (1) | CN106563553B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110700835A (en) * | 2019-11-07 | 2020-01-17 | 北京矿冶科技集团有限公司 | Shallow underground mining, selecting and charging integrated system for lead-zinc ores |
| CN113058727A (en) * | 2021-03-26 | 2021-07-02 | 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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| CN110700835A (en) * | 2019-11-07 | 2020-01-17 | 北京矿冶科技集团有限公司 | Shallow underground mining, selecting and charging integrated system for lead-zinc ores |
| 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 |
| CN113058727A (en) * | 2021-03-26 | 2021-07-02 | 中冶北方（大连）工程技术有限公司 | Coarse crushing and medium crushing underground arrangement system and method |
| 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 | Publication date |
|---|---|
| CN106563553B (en) | 2018-08-14 |
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