CN109488298A - One kind low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system and method - Google Patents
One kind low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system and method Download PDFInfo
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- CN109488298A CN109488298A CN201811613092.5A CN201811613092A CN109488298A CN 109488298 A CN109488298 A CN 109488298A CN 201811613092 A CN201811613092 A CN 201811613092A CN 109488298 A CN109488298 A CN 109488298A
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- China
- Prior art keywords
- ore
- blasthole
- cleans
- stope
- band containing
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/22—Methods of underground mining; Layouts therefor for ores, e.g. mining placers
Abstract
The invention discloses a kind of low-grade phosphate ore stone stopes of band containing shale to clean ore-sorting system, including main tunnel, the main tunnel is equipped with top plate and bottom plate, the main tunnel is connected to several drop shafts, the drop shaft side, which is located at below main tunnel, is equipped with annular sedimentation basin, the bottom plate for being located at main tunnel above the annular sedimentation basin has vibrating screen, and the vibration sieve outlet is connect with drop shaft, and elution device is equipped with above vibrating screen.One aspect of the present invention reduces impoverishment rate in mining, improves product grade, on the other hand reduces beneficiation cost investment.
Description
Technical field
The present invention relates to mining technique field, specially a kind of low-grade phosphate ore stone stope of band containing shale cleans ore dressing system
System and method.
Background technique
Yichang phosphate rock is close to the Huangling Anticline northeast wing, mainly based on low-grade lower phosphorous layer ore, rock phosphate in powder is mainly phosphorus
Block rock is alternate with shale band overlapped or is in mutual stratiform output, and the back production stone rate of dilution is high, and ore dressing difficulty increases.Currently, domestic
Outer beneficiated phosphate ore main technique and process have broken, screening, scouring, gravity treatment, magnetic separation, flotation etc., and Yichang phosphate rock mountain is mating
Construction selects factory mostly based on gravity treatment, and it is surface construction that broken, scouring, which is key step before ore dressing, though space is convenient for transporting greatly
It is defeated, but too big difficulty and economic input are increased to tailings impoundment and water pollution processing.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of low-grade phosphate ore stone stope of band containing shale scouring ore-sorting system
And method, impoverishment rate in mining is on the one hand reduced, product grade is improved, on the other hand reduces beneficiation cost investment.
In order to solve the above technical problems, technical solution of the present invention are as follows:
A kind of low-grade phosphate ore stone stope of band containing shale scouring ore-sorting system, including main tunnel, the main tunnel are equipped with
Top plate and bottom plate, the main tunnel are connected to several drop shafts, and the drop shaft side, which is located at below main tunnel, is equipped with annular precipitating
Pond, the bottom plate that annular sedimentation basin top is located at main tunnel have vibrating screen, and the vibration sieve outlet and drop shaft pass through rail
Road connection.
Preferably, elution device is equipped with above the vibrating screen.
Preferably, the vibrating screen and bottom plate angle are 10 ° -20 °, and the aperture of the vibrating screen is 1-1.5cm.
Preferably, the vibrating screen edge is equipped with baffle, the high 10-20cm of baffle.
Preferably, the vibration sieve outlet is connect with drop shaft by track, and 35 ° of track grade, track is equipped with iron plate.Paving
If iron plate reduces ore and bottom plate frictional force, the gradient of setting facilitates oversize not need external force to flow directly into drop shaft.
The low-grade phosphate ore stone stope of band containing shale is carried out using the system and cleans beneficiation method, what the method was directed to
Mine distribution has from top to bottom been sequentially distributed lean ore, middle rich ore and lower lean ore between top plate and bottom plate, specifically include with
Lower step:
1) it adopts when cutting construction, takes separate zone production technique first by upper lean ore, middle rich ore and lower low-grade phosphate ore, and ore is returned
It receives clean；
2) cleaning supporting is carried out to top side according to roof conditions after back production；
3) lean ore under back production: blasthole is set on lower lean ore and carries out explosion；
4) it cleans beneficiation flowsheet: after turning over slag to vibrating screen, carrying out vibration transmission, elution device water spray washup；
6) for ore from slipping to drop shaft, shale enters annular sedimentation basin；
It completes the low-grade phosphate ore of band containing shale stone stope and cleans ore dressing.
Preferably, the step 3) blasthole with 10 °~40 ° of rock stratum angle
Preferably, the step 3) blasthole include first segment blasthole, second segment blasthole, third section blasthole, the 4th section of blasthole,
5th section of blasthole and the 6th section of blasthole, parameter are specifically as shown in table 1:
Table 1
It is further preferred that the step 3) explosion uses segment blast, blasting sequence is by first segment blasthole, second segment
Blasthole, third section blasthole, the 4th section of blasthole, the 5th section of blasthole and the 6th section of blasthole successively explosion.
The beneficial effects of the present invention are:
The first, borehole spacing, angle are controlled, the ore accounting rate that granularity is less than 100mm is improved.
This project by along rock stratum perforating explosion be changed to the 40 ° of downhole explosions of rock stratum angle, and control array pitch,
Away from segment blast improves the ore accounting rate that granularity is less than 100mm.
The second, the clay content in ore, lifting ore grade are reduced by cleaning ore dressing in underground.
This project washes the shale goods and materials in ore, improves the grade of ore, reduce lower phosphorous layer ore by cleaning ore dressing
The lowest quality of recycling improves resource recycling rate.
Third, washup pond are built in conjunction with annular sedimentation basin, solve washup environmental issue.
The beneficial effects of the present invention are:
1) scouring ore dressing carried out to the low-grade phosphate ore stone of band containing shale in mine down-hole, improve mine grade 1%~
3%, so that lower phosphorous layer ore recuperation is reduced to 15% using grade, improves resource recycling rate.
2) in ore bed back production construction, by controlling blast hole parameter, hole array pitch 30cm, spacing 50cm, with 10 ° of rock stratum angle
The characteristics of~40 °, making full use of joint and the bedding architecture of ore bed, making full use of ore and shale alternating layers preservation, keeps granularity small
80% or more is accounted in the ore of 100mm, reduces the broken link for cleaning ore dressing.So that production ore is adequately crushed,
Ore of the granularity less than 100mm accounts for 80% or more, and broken link is reduced at drop shaft, is cleaned more abundant.
3) annular sedimentation basin is built, so that washup is generated sewage and obtains precipitation process in time, prevent from polluting, while recyclable benefit
It is energy saving and environmentally friendly with clear water after partly precipitated.
4) sequence of segment blast is to illustrate: segment blast here refers to (not to be referred to using the section of the detonator of explosion
Be the detonator priming network design time difference) be performed.The sequence of explosion is first segment blasthole, second segment blasthole, third section
Blasthole, the 4th section of blasthole, the 5th section of blasthole and the 6th section of blasthole successively explosion can be by interlayers using the angle with rock stratum
Rock and the abundant explosion of mine more loosely, facilitate mining at fritter.
Detailed description of the invention
Fig. 1 ore bed histogram；
Fig. 2 low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system structural schematic diagram；
Fig. 3 low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system structural schematic diagram；
Fig. 4 low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system structural schematic diagram；
Fig. 5 lower low-grade phosphate ore borehole layout drawing；
Wherein: main tunnel 1, top plate 11, bottom plate 12, upper lean ore 13, middle rich ore 14, lower lean ore 15, drop shaft 2, vibrating screen 3,
Annular sedimentation basin 4, elution device 5,
First segment blasthole 1., second segment blasthole 2., third section blasthole 3., the 4th section of blasthole 4., the 5th section of blasthole 5., the 6th
Section blasthole is 6..
Specific embodiment
The present invention is further illustrated below with reference to embodiment, but the scope of protection of present invention is not limited to implement
The range of example statement.
Embodiment 1
A kind of low-grade phosphate ore stone stope of band containing shale scouring ore-sorting system, including main tunnel 1, the main tunnel 1 are set
There are top plate 11 and bottom plate 12, the main tunnel 1 is connected to several drop shafts 2, and 2 side of drop shaft, which is located at below main tunnel 1, to be set
There is annular sedimentation basin 4, the bottom plate 11 that main tunnel 1 is located above the annular sedimentation basin 4 has vibrating screen 3, the vibrating screen 3
Outlet passes through orbit connection with drop shaft 2.
Preferably, elution device 5 is equipped with above the vibrating screen 3.
Preferably, the vibrating screen 3 and 11 angle of bottom plate are 10 ° -20 °, and the aperture of the vibrating screen 3 is 1-1.5cm.
Preferably, 3 edge of vibrating screen is equipped with baffle, the high 10-20cm of baffle.
Preferably, the outlet of vibrating screen 3 is connect with drop shaft 2 by track, and 35 ° of track grade, track is equipped with iron plate.
It is laid with iron plate and reduces ore and bottom plate frictional force, the gradient of setting facilitates oversize not need external force to flow directly into drop shaft.
The low-grade phosphate ore stone stope of band containing shale is carried out using the system and cleans beneficiation method, what the method was directed to
Mine distribution has from top to bottom been sequentially distributed lean ore 13, middle rich ore 14 and lower lean ore 15 between top plate 11 and bottom plate 12,
Specifically includes the following steps:
1) it adopts when cutting construction, takes separate zone production technique first by upper lean ore 13, middle rich ore 14 and lower 15 back production of lean ore, and
Ore recuperation is clean；
2) cleaning supporting is carried out to top side according to roof conditions after back production；
3) lean ore under back production: blasthole is set on lower lean ore 15 and carries out explosion；
4) it cleans beneficiation flowsheet: after turning over slag to vibrating screen, carrying out vibration transmission, elution device water spray washup；
7) for ore from slipping to drop shaft, shale enters annular sedimentation basin；
It completes the low-grade phosphate ore of band containing shale stone stope and cleans ore dressing.
Preferably, the step 3) blasthole with 10 °~40 ° of rock stratum angle
Preferably, the step 3) blasthole include first segment blasthole, second segment blasthole, third section blasthole, the 4th section of blasthole,
5th section of blasthole and the 6th section of blasthole, parameter are specifically as shown in table 1:
Table 1
It is further preferred that the step 3) explosion uses segment blast, blasting sequence is by first segment blasthole, second segment
Blasthole, third section blasthole, the 4th section of blasthole, the 5th section of blasthole and the 6th section of blasthole successively explosion.Granularity is set to be less than the mine of 100mm
Stone accounts for 80% or more, reduces the broken link for cleaning ore dressing.So that production ore is adequately crushed, granularity is less than
The ore of 100mm accounts for 80% or more, and broken link is reduced at drop shaft, is cleaned more abundant.
The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although referring to aforementioned each reality
Applying example, invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified, or equivalent substitution of some or all of the technical features；And
These are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system, including main tunnel (1), it is characterised in that: institute
Main tunnel (1) is stated equipped with top plate (11) and bottom plate (12), the main tunnel (1) is connected to several drop shafts (2), the drop shaft
(2) side, which is located at below main tunnel (1), is equipped with annular sedimentation basin (4), is located at main tunnel (1) above the annular sedimentation basin (4)
Bottom plate (11) have vibrating screen (3).
2. the low-grade phosphate ore of band containing shale stone stope according to claim 1 cleans ore-sorting system, it is characterised in that: institute
It states and is equipped with elution device (5) above vibrating screen (3).
3. the low-grade phosphate ore of band containing shale stone stope according to claim 1 cleans ore-sorting system, it is characterised in that: institute
Stating vibrating screen (3) and bottom plate (11) angle is 10 ° -20 °, and the aperture of the vibrating screen (3) is 1-1.5cm.
4. the low-grade phosphate ore of band containing shale stone stope according to claim 1 cleans ore-sorting system, it is characterised in that: institute
Vibrating screen (3) edge is stated equipped with baffle, the high 10-20cm of baffle.
5. the low-grade phosphate ore of band containing shale stone stope according to claim 1 cleans ore-sorting system, it is characterised in that: institute
It states vibrating screen (3) outlet to connect with drop shaft (2) by track, 30 ° -40 ° of track grade, track is equipped with iron plate.
6. the low-grade phosphate ore of band containing shale stone stope according to claim 1 cleans ore-sorting system, it is characterised in that: institute
It states and has from top to bottom been sequentially distributed lean ore (13), middle rich ore (14) and lower lean ore (15) between top plate (11) and bottom plate (12).
7. carrying out the low-grade phosphate ore stone stope of band containing shale using system described in claim 1-6 any one cleans ore dressing side
Method, it is characterised in that: the method specifically includes the following steps:
1) it adopts when cutting construction, takes separate zone production technique first by upper lean ore (13), middle rich ore (14) and lower lean ore (15) back production, and
Ore recuperation is clean；
2) cleaning supporting is carried out to top side according to roof conditions after back production；
3) lean ore under back production: blasthole is set on lower lean ore (15) and carries out explosion；
4) it cleans beneficiation flowsheet: after turning over slag to vibrating screen, carrying out vibration transmission, elution device water spray washup；
5) for ore from slipping to drop shaft, shale enters annular sedimentation basin；
It completes the low-grade phosphate ore of band containing shale stone stope and cleans ore dressing.
8. according to the method described in claim 7, it is characterized by: the step 3) blasthole and 10 °~40 ° of rock stratum angle.
9. according to the method described in claim 7, it is characterized by: the step 3) blasthole includes first segment blasthole, second segment
Blasthole, third section blasthole, the 4th section of blasthole, the 5th section of blasthole and the 6th section of blasthole, parameter are specifically as shown in table 1:
Table 1
。
10. according to the method described in claim 9, it is characterized by: the step 3) explosion uses segment blast, blasting sequence
It is successively quick-fried by first segment blasthole, second segment blasthole, third section blasthole, the 4th section of blasthole, the 5th section of blasthole and the 6th section of blasthole
It is broken.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811613092.5A CN109488298A (en) | 2018-12-27 | 2018-12-27 | One kind low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system and method |
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| CN201811613092.5A CN109488298A (en) | 2018-12-27 | 2018-12-27 | One kind low-grade phosphate ore stone stope of band containing shale cleans ore-sorting system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038827A (en) * | 2019-05-27 | 2019-07-23 | 四川发展天瑞矿业有限公司 | Phosphorus ore color sorting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110038827A (en) * | 2019-05-27 | 2019-07-23 | 四川发展天瑞矿业有限公司 | Phosphorus ore color sorting system |
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