CN106994385A - A kind of selective reducing mechanism of ore and method - Google Patents
A kind of selective reducing mechanism of ore and method Download PDFInfo
- Publication number
- CN106994385A CN106994385A CN201710349686.9A CN201710349686A CN106994385A CN 106994385 A CN106994385 A CN 106994385A CN 201710349686 A CN201710349686 A CN 201710349686A CN 106994385 A CN106994385 A CN 106994385A
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- ore
- equipment
- coarse screening
- fine sizing
- thickener
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004513 sizing Methods 0.000 claims abstract description 44
- 238000012216 screening Methods 0.000 claims abstract description 39
- 239000002562 thickening agent Substances 0.000 claims abstract description 28
- 238000010298 pulverizing process Methods 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000011084 recovery Methods 0.000 claims abstract description 10
- 239000002245 particle Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 230000001133 acceleration Effects 0.000 claims description 8
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 14
- 239000011707 mineral Substances 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010494 dissociation reaction Methods 0.000 description 2
- 230000005593 dissociations Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005549 size reduction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
- B02C19/066—Jet mills of the jet-anvil type
-
- 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
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- 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
-
- 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
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of selective reducing mechanism of ore, including high-pressure pump, enter feed bin, mixing chamber, collimator, target body, pulverizing chamber, coarse screening equipment, fine sizing equipment, thickener, recovery tank.Fine sizing equipment is placed in below coarse screening equipment, enters thickener for collecting ore pulp under the hard components in ore, the sieve of fine sizing equipment；Thickener is placed in below fine sizing equipment, for collecting the fragility component in ore.Further relate to a kind of ore method for separating of the selective reducing mechanism of utilization ore.The present invention has the advantages that safe, free from environmental pollution, the saving energy and material consumption, raised labour productivity.
Description
Technical field
The present invention relates to the processing technology field of mineral, more particularly to a kind of selective reducing mechanism of ore and its method.
Background technology
In ore-dressing technique, need first sufficiently to crush ore mostly, make each mineral constituent in ore abundant
Dissociation.Traditional disintegrating process energy consumption is big, and efficiency is low, and cost is high, and seriously polluted, its nonproductive work(is sometimes up to 90%, also
It is to say, there can only be very small part energy to be used for material in crushing process and produce new surface, cause the huge wave of energy
Take.High pressurewater cleaning is an energy-efficient new technology, compared with traditional disintegrating process, and its difference is that it is utilized
The tension of material is much smaller than the principle of compression, and traditional compression pulverize mechanism is changed into stretching crushing mechanism, so that
Crush efficiency is greatly improved, meanwhile, after crushing, ore composition is enriched in by its hardness be conducive in the range of different grain size after
Continuous sorting.Compared with traditional disintegrating process, the main advantage of high pressurewater cleaning has：Safe, free from environmental pollution, saving energy
Source and material consumption, raise labour productivity.
Conventional size reduction technique Minerals are ground for a long time and exposure can cause ore particle surface abrasion and pollution in atmosphere, this
It is very unfavorable for follow-up ore dressing process.And under High Pressure Water Jet ore particle destruction mainly using brittle break as
Main, therefore, high pressurewater cleaning has good mineral disaggregation selectivity, i.e. water jet can cause different minerals crystal to gather
Dissociation between zoarium, is a kind of selective breaking method, and selective molecular attraction is to a certain mineral constituent in enrichment tcrude ore
A kind of very favorable, when the strength characteristics of each component has obvious difference, selective molecular attraction reforms into feasible.As long as using
Brittle mineral can be collected into fine fraction to separate with hard component by size separation method.
The content of the invention
It is an object of the invention to provide a kind of selective reducing mechanism of ore and its method, traditional disintegrating process is solved
Energy consumption is big, and efficiency is low, and cost is high, the problem of seriously polluted, while energy preliminary concentration valuable mineral, is follow-up ore dressing process reduction
Production cost, improves separating effect.
To realize object above, the technical solution adopted by the present invention is：A kind of selective reducing mechanism of ore, including high pressure
Pump, enter feed bin, mixing chamber, collimator, target body, pulverizing chamber, coarse screening equipment, fine sizing equipment, thickener, recovery tank；
The mixing chamber top is connected into feed bin, and high-pressure water inlet end connects the high-pressure pump, and water under high pressure exit end connects the collimation
Pipe；The high-pressure pump is used to make High-Pressure Water flow into mixing chamber and with being sufficiently mixed from the ore particle for entering feed bin；The mixing chamber
It is arranged to make the water under high pressure of inflow mixing chamber to drive Particle Acceleration；The collimator exit end is directed at the target body；The target
Body is in pulverizing chamber, and the coarse screening equipment is placed in below the pulverizing chamber, for receiving the ore after crushing；It is described thick
Grain screening plant is arranged to make rough grain on sieve to return into feed bin repetition crushing, and the lower ore pulp of sieve enters fine sizing equipment；Institute
State fine sizing equipment to be placed in below coarse screening equipment, the ore particle on collection screen, i.e., the hard components in described ore, institute
State ore pulp under the sieve of fine sizing equipment and enter thickener；The thickener is placed in below fine sizing equipment, for collecting bottom
Fragility component in stream, i.e., described ore.
The invention provides a kind of ore method for separating using the selective reducing mechanism of above-mentioned ore, including following step
Suddenly：
1）The high-pressure pump make High-Pressure Water flow into the mixing chamber and with from it is described enter feed bin ore particle be sufficiently mixed, as
The water under high pressure of carrier drives Particle Acceleration, by spraying to the target body after the collimator and producing shock with the target body, most
After make Selective feeding crush；
2）Ore pulp after broken enters the coarse screening equipment below the pulverizing chamber, and the coarse screening equipment sieve is upper thick
Ore particle enters feed bin repetition crushing described in returning；
3）The lower ore pulp of coarse screening equipment sieve enters the fine sizing equipment, to ore deposit on the sieve of the fine sizing equipment
Grain is collected, and obtains the hard components in the ore；
4）Ore pulp enters the thickener under the sieve of the fine sizing equipment, and the underflow to the thickener is collected, obtained
To the fragility component in the ore；
5）The overflow of the thickener is discharged into the recovery tank, enters the high-pressure pump as recirculated water.
As further preferred technical scheme, the material of the target body is hard alloy steel.As further preferred
Technical scheme, the coarse screening equipment and the fine sizing equipment are Wet method vibration screen, the coarse screening equipment
Screen size should be greater than the screen size of the fine sizing equipment.
The beneficial effects of the present invention are：
1）Selective molecular attraction devices and methods therefor in the present invention utilizes high pressurewater cleaning technique, the same conventional size reduction of the technique
Technique is compared, and is had the advantages that safe, free from environmental pollution, the saving energy and material consumption, is raised labour productivity.
2）The selective reducing mechanism of ore of the present invention and its method have good mineral disaggregation selectivity, when each component
When strength characteristics has obvious difference, if using by size separation method brittle mineral can be collected into fine fraction from
And separated with hard component.
Brief description of the drawings：
Fig. 1 is the structural representation of the selective reducing mechanism of ore of the present invention；
Mark implication as follows in figure：1-high-pressure pump, 2-enter feed bin, 3-mixing chamber, 4-collimator, 5-target body, 6-crushing
Room, 7- coarse screening equipment, 8-fine sizing equipment, 9-thickener, 10-recovery tank.
Embodiment
The present invention is described further below in conjunction with the accompanying drawings.
A kind of selective reducing mechanism of ore, including high-pressure pump 1, enter feed bin 2, mixing chamber 3, collimator 4, target body 5, crush
Room 6, coarse screening equipment 7, fine sizing equipment 8, thickener 9, recovery tank 10；The top of mixing chamber 3 is connected into feed bin 2,
High-pressure water inlet end connects the high-pressure pump 1, and water under high pressure exit end connects the collimator 4；The high-pressure pump 1 is used to make high pressure
Current flow into mixing chamber 3 and with being sufficiently mixed from the ore particle for entering feed bin 2；The mixing chamber 3 is arranged to make inflow mixing chamber 3
Water under high pressure drive Particle Acceleration；The exit end of collimator 4 is directed at the target body 5；The target body 5 is in pulverizing chamber 6, institute
State coarse screening equipment 7 and be placed in the lower section of pulverizing chamber 6, for receiving the ore after crushing；The coarse screening equipment 7 is set
Being set to makes rough grain on sieve return into the repetition crushing of feed bin 2, and the lower ore pulp of sieve enters fine sizing equipment 8；The fine sizing is set
Standby 8 hard components being placed in the lower section of coarse screening equipment 7, the ore particle on collection screen, i.e., described ore, the fine sizing
Ore pulp enters thickener 9 under the sieve of equipment 8；The thickener 9 is placed in the lower section of fine sizing equipment 8, for collecting underflow, i.e. institute
State the fragility component in ore.
Wherein, high-pressure pump 1 makes High-Pressure Water flow into mixing chamber 3 and with being sufficiently mixed from the ore particle for entering feed bin 2, is used as load
The water under high pressure of body drives Particle Acceleration, by spraying to target body 5 after collimator 4 and producing shock with target body 5, finally selects particle
Property crush.Ore pulp after crushing enters coarse screening equipment 7 from the lower section of pulverizing chamber 6, and coarse screening equipment 7 is sieved rough grain and returned
Enter feed bin 2 and repeat crushing, the lower ore pulp of the sieve of coarse screening equipment 7 enters ore deposit on fine sizing equipment 8, the sieve of fine sizing equipment 8
Grain is just enriched ore pulp under the hard components in raw ore, the sieve of fine sizing equipment 8 and enters thickener, and the underflow of thickener 9 is just
The fragility component in raw ore is enriched, the overflow of thickener is discharged into recovery tank 10, enters high-pressure pump 1 as recirculated water.
Comprised the following steps using the selective molecular attraction process of the device：
1）The high-pressure pump 1 make High-Pressure Water flow into the mixing chamber 3 and with from it is described enter feed bin 2 ore particle be sufficiently mixed,
Particle Acceleration is driven as the water under high pressure of carrier, by spraying to the target body 5 after the collimator 4 and being produced with the target body 5
Hit, finally crush Selective feeding；
2）Ore pulp after broken enters the coarse screening equipment 7 from the lower section of pulverizing chamber 6, and the coarse screening equipment 7 is sieved
Upper rough grain enters the repetition crushing of feed bin 2 described in returning；
3）The lower ore pulp of the sieve of coarse screening equipment 7 enters the fine sizing equipment 8, to the sieve of the fine sizing equipment 8
Upper ore particle is collected, and obtains the hard components in the ore；
4）Ore pulp enters the thickener 9 under the sieve of the fine sizing equipment 8, and the underflow to the thickener 9 is collected,
Obtain the fragility component in the ore；
5）The overflow of the thickener 9 is discharged into the recovery tank 10, enters the high-pressure pump 1 as recirculated water.
Wherein, target body material can be hard alloy steel.
Coarse screening equipment and fine sizing equipment are Wet method vibration screen, and the screen size of coarse screening equipment should be greater than
The screen size of fine sizing equipment.
Experimental data using said apparatus and method is as follows：
Using Bayan Obo raw ore as the pan feeding of the process, its rare earth grade is 6.12%, and Iron grade is 28.33%.Will
The Bayan Obo raw ore for being crushed to below 5mm is transported in feed bin 2, and High-Pressure Water is provided using 25MPa high-pressure pump 1, high
Current are pressed as carrier and drive Particle Acceleration, by spraying to target body 5 after collimator 4 and producing shock with target body 5, finally make particle
Selective crushing；Ore pulp after broken enters coarse screening equipment 7 from the lower section of crushing chamber 6, and coarse screening equipment 7 is vibrated for wet method
Sieve, its screen size is ore particle on 0.45mm, the sieve of coarse screening equipment 7（Granularity is more than 0.45mm）Return and carried out into feed bin 2
Repeat broken, ore pulp enters fine sizing equipment 8 under the sieve of coarse screening equipment 7, fine sizing equipment 8 is Wet method vibration screen,
Its screen size is 0.074mm, and ore particle is just enriched in Bayan Obo raw ore that hardness is larger, contain on the sieve of fine sizing equipment 8
The more mineral constituent of iron, the Iron grade of the oversize has reached 44.41%, and yield is 31.56%, there is certain enrichment effect to iron
Really.Ore pulp enters thickener 9 under the sieve of fine sizing equipment 8, the underflow of thickener 9 be just enriched in raw ore compare it is more crisp
Rare-earth mineral, the rare earth grade in underflow reaches 9.28%, and yield is 62.44%.The overflow of thickener 9 is discharged into recovery tank 10,
Enter high-pressure pump 1 as recirculated water.
It can be seen that the selective molecular attraction devices and methods therefor in the present invention has good mineral disaggregation selectivity, work as each component
Strength characteristics when having obvious difference, as long as brittle mineral can be collected into fine fraction using by size separation method
So as to be separated with hard component.And compared with traditional disintegrating process, with safe, free from environmental pollution, the saving energy and material
The advantages of material is consumed, raised labour productivity.
This specific embodiment is only used for that the present invention is explained, not to the restriction of claims.
Protection scope of the present invention should be defined by the technical scheme described in claim.
Claims (6)
1. a kind of selective reducing mechanism of ore, including high-pressure pump（1）, enter feed bin（2）, mixing chamber（3）, collimator（4）, target body
（5）, pulverizing chamber（6）, coarse screening equipment（7）, fine sizing equipment（8）, thickener（9）, recovery tank（10）；The mixing chamber
（3）Top is connected into feed bin（2）, high-pressure water inlet end connects the high-pressure pump（1）, the water under high pressure exit end connection collimator
（4）；The high-pressure pump（1）For making High-Pressure Water flow into mixing chamber（3）And with from entering feed bin（2）Ore particle be sufficiently mixed；
The mixing chamber（3）It is arranged to make inflow mixing chamber（3）Water under high pressure drive Particle Acceleration；The collimator（4）Exit end
It is directed at the target body（5）；The target body（5）Located at pulverizing chamber（6）It is interior, the coarse screening equipment（7）It is placed in the pulverizing chamber
（6）Lower section, for receiving the ore after crushing；The coarse screening equipment（7）It is arranged to make rough grain on sieve to return to pan feeding
Storehouse（2）Repeat to crush, the lower ore pulp of sieve enters fine sizing equipment（8）；The fine sizing equipment（8）It is placed in coarse screening equipment
（7）Hard components in lower section, the ore particle on collection screen, i.e., described ore, the fine sizing equipment（8）Sieve under ore pulp
Into thickener（9）；The thickener（9）It is placed in fine sizing equipment（8）Lower section, for collecting underflow, i.e., in described ore
Fragility component.
2. the selective reducing mechanism of a kind of ore according to claim 1, it is characterised in that：The target body（5）Material
For hard alloy steel.
3. the selective reducing mechanism of a kind of ore according to claim 1, it is characterised in that：Coarse screening equipment（7）With
Fine sizing equipment（8）It is Wet method vibration screen, coarse screening equipment（7）Screen size be more than fine sizing equipment（8）'s
Screen size.
4. using a kind of ore method for separating of the selective reducing mechanism of ore any one of claim 1-3, including
Following steps：
1）The high-pressure pump（1）High-Pressure Water is set to flow into the mixing chamber（3）And with from it is described enter feed bin（2）Ore particle it is abundant
Mixing, drives Particle Acceleration as the water under high pressure of carrier, passes through the collimator（4）After spray to the target body（5）And with it is described
Target body（5）Shock is produced, finally crushes Selective feeding；
2）Ore pulp after broken is from the pulverizing chamber（6）Lower section enters the coarse screening equipment（7）, the coarse screening equipment
（7）Sieve and enter feed bin described in rough grain return（2）Repeat to crush；
3）The coarse screening equipment（7）The lower ore pulp of sieve enters the fine sizing equipment（8）, to the fine sizing equipment
（8）Sieve on ore particle be collected, obtain the hard components in the ore；
4）The fine sizing equipment（8）Sieve under ore pulp enter the thickener（9）, to the thickener（9）Underflow enter
Row is collected, and obtains the fragility component in the ore；
5）The thickener（9）Overflow be discharged into the recovery tank（10）, enter the high-pressure pump as recirculated water（1）.
5. ore method for separating according to claim 4, it is characterised in that：The target body（5）Material be hard alloy
Steel.
6. the ore method for separating according to any one of claim 4-5, it is characterised in that：The coarse screening equipment
（7）With the fine sizing equipment（8）It is Wet method vibration screen, the coarse screening equipment（7）Screen size should be greater than institute
State fine sizing equipment（8）Screen size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349686.9A CN106994385A (en) | 2017-05-17 | 2017-05-17 | A kind of selective reducing mechanism of ore and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710349686.9A CN106994385A (en) | 2017-05-17 | 2017-05-17 | A kind of selective reducing mechanism of ore and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106994385A true CN106994385A (en) | 2017-08-01 |
Family
ID=59435762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710349686.9A Pending CN106994385A (en) | 2017-05-17 | 2017-05-17 | A kind of selective reducing mechanism of ore and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106994385A (en) |
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| CN107855197A (en) * | 2017-11-10 | 2018-03-30 | 内蒙古科技大学 | A kind of copper mine, Pb-Zn deposits throw tail method |
| CN111638090A (en) * | 2020-07-07 | 2020-09-08 | 中冶北方（大连）工程技术有限公司 | Medium-length hole sampling equipment and method for sublevel caving method mining without bottom pillar |
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| CN111638090A (en) * | 2020-07-07 | 2020-09-08 | 中冶北方（大连）工程技术有限公司 | Medium-length hole sampling equipment and method for sublevel caving method mining without bottom pillar |
| CN111638090B (en) * | 2020-07-07 | 2024-06-04 | 中冶北方（大连）工程技术有限公司 | Medium-length hole sampling equipment and method for mining by using non-bottom column sublevel caving method |
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