CN107130110A - A kind of method of biological dump leaching ore deposit heap turning - Google Patents
A kind of method of biological dump leaching ore deposit heap turning Download PDFInfo
- Publication number
- CN107130110A CN107130110A CN201710547559.XA CN201710547559A CN107130110A CN 107130110 A CN107130110 A CN 107130110A CN 201710547559 A CN201710547559 A CN 201710547559A CN 107130110 A CN107130110 A CN 107130110A
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- ore
- stockyard
- ore deposit
- heap
- deposit heap
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/18—Extraction of metal compounds from ores or concentrates by wet processes with the aid of microorganisms or enzymes, e.g. bacteria or algae
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to biological metallurgy field, and in particular to a kind of method of biological dump leaching ore deposit heap turning, and ore species is at this stage using any ore species of heap bioleaching process processing.Ore at the top and bottom of biological dump leaching ore deposit heap is uniformly replaced, improve the diafiltration in stockyard, the ore of original bottom compacting can be by spray liquid homogeneous immersion, simultaneously in the ditch that stockyard surface cutting depth is ore deposit stack height 1/3~1/2, to increase air capacity increase in the contact area of ore and air, ore deposit heap, microbial activity increase, to improve dump leaching production copper speed, increase economic benefit.
Description
Technical field
The invention belongs to biological metallurgy field, and in particular to a kind of method of biological dump leaching ore deposit heap turning, and ore species is
Any ore species handled at this stage using heap bioleaching process.
Background technology
Biological dump leaching ore deposit heap is after the leaching of (100~150 days) after a while, and due to ore deadweight, the compacting of ore deposit heap is oozed
Permeability is reduced, and spray liquid can not effectively infiltrate ore deposit heap middle and lower part ore；Again due to air capacity deficiency, microorganism in the ore deposit heap of compacting
Activity reduction；Factors above causes stockyard to produce amount of copper reduction jointly, and leaching rate increasess slowly, leaching efficiency reduction.It there is no at present
Turning method can bottom ore uniformly replaced with top ore, it is impossible to be effectively improved stockyard diafiltration property, and ore can not be increased
With the contact area of air, the air capacity in ore deposit heap is improved, and then promote microbial activity.The biological dump leaching of maturation is there is no at present
The method of ore deposit heap turning.
The content of the invention
The purpose of the present invention is that ore at the top and bottom of biological dump leaching ore deposit heap uniformly replaces, and improves the diafiltration in stockyard,
The ore of original bottom compacting can by spray liquid homogeneous immersion, while stockyard surface cutting depth be ore deposit stack height 1/3~
1/2 ditch, to increase air capacity increase in the contact area of ore and air, ore deposit heap, microbial activity increase, to improve dump leaching
Copper speed is produced, increases economic benefit.
The invention discloses a kind of method of ore heap leaching operation ore deposit heap turning, the ore biology dump leaching ore deposit heap turning is applied to
In the case of biological dump leaching mid-term, not enough, the leaching rate Slow lifting of ore deposit heap diafiltration property, turning work is carried out to ore deposit heap using excavator
Industry, and it is that ore deposit stack height 1/3~1/2, slope ratio are 1 to excavate on ore deposit heap surface a plurality of depth:1~2:1 ditch, stockyard surface is in ripple
Shape wave, to improve stockyard diafiltration property, improving air capacity in the area that is contacted with ore of air, ore deposit heap increases, and utilizes oxygen and micro-
Biological effect promotes ore oxidation, realizes the increase of dump leaching yield, leaching efficiency is improved.
The present invention leaches amount of metal reduction, leaching rate when dump leaching and carried first according to biological dump leaching ore deposit heap practical condition
In the case of rising slowly, two digging machines, which coordinate, carries out turning operations, digging machine bucket capacity 1.6m3~1.8m3.Comprise the following steps that；
1st, First digging machine digs the top layer ore that stockyard 6~8m of forefront length direction, depth are stockyard height 1/2
And ore deposit heap front portion is stacked at, open the working face of second excavator；
2nd, second excavator, which has dug stockyard bottom ore on this working face, is stacked at First digging machine and has been stacked at
On the anterior ore of ore deposit heap；
3rd, carry out bottom ore in second excavator and excavate stacking operation simultaneously, First digging machine starts second work
Face, also to be further continued for retreating the excacation of the surface ore that stockyard 6~8m of length direction, depth are stockyard height 1/2, digs
Ore be stacked at the bottom section in first job face that second excavator has completed to excavate, so circulation is final to realize
The uniform turning of whole stockyard ore；
4th, it is stockyard height 1/3~1/2, slope ratio (the high h of ore deposit heap heap and heap field length L that some depth are opened on stockyard surface
Than) it is 1:1~2:1,15~20m of spacing air ditch, the ore that ditching is dug out uniformly are flutterred around air ditch；After the completion of turning
Stockyard surface undulate, then recover to spray operation.
Beneficial effect
The method of ore biology dump leaching ore deposit heap turning designed by the present invention, with simple to operate, can have between equipment
Effect coordinates, and operating cost is low, effectively bottom ore and top ore can replace, improve the diafiltration in stockyard, ore energy
Enough be infiltrated by spray liquid；The ditch of ore deposit stack height 1/3~1/2 is excavated simultaneously, can increase ore and air to greatest extent
Contact area, ore can be with air contact in whole stockyard, and the increase of air capacity, is conducive to improving microorganism in ore deposit heap
Activity, promotes biological dump leaching, improves dump leaching yield and leaching efficiency, improves economic benefit.
Brief description of the drawings
Fig. 1 is the leaching rate curve map of embodiment 1；
Fig. 2 is the leaching rate curve map of embodiment 2；
Embodiment
Embodiment 1
Certain copper sulfide mineral biological dump leaching ore deposit heap long 700m, wide 80m, the high 6m of heap, 713,221 tons of ore deposit heap ore dry weight, mainly
Copper mineral is vitreous copper, enters heap ore containing Cu0.43%, sprays and leaches within 171 days amount of copper reduction, and leaching rate increasess slowly, and leaches effect
Rate is reduced, the turning method introduced using the present invention, and using two digging machine operations, digging machine is CAT336D2, bucket capacity 1.8m3, consumption
When 17 days, it is that 2m, slope compare 1 that stockyard surface, which amounts to 3 depth of digging,:1 ditch, recovers ore deposit heap production amount of copper after spray on the 188th day and increases
Plus, leaching rate lifting is notable.Leach amount of copper and be shown in Table 1 within single month before and after turning, amount of copper increase is leached as shown in Table 1, after turning substantially,
The 6th month list month copper yield after to turning is still higher than single monthly output before turning at double, and leaching rate curve is shown in Fig. 1.Can from Fig. 1
Know, leaching rate lifting is notable, and leaching efficiency is improved.
Leach amount of copper within single month before and after the turning of 1 embodiment of table 1
Embodiment 2
Certain copper sulfide mineral biological dump leaching ore deposit stockyard 350m, width 100m, the high 6m of heap, 358,405 tons of ore dry weight, main copper
Mineral are vitreous copper, enter heap ore containing Cu0.53%, spray and leach within 175 days amount of copper reduction, and leaching rate increasess slowly, leaching efficiency
Reduction, the rear turning method introduced using the present invention, using two digging machine operations, digging machine is Xu work XE370, bucket capacity 1.6m3, consumption
When 8 days, it is that 2.5m, slope compare 1 that stockyard surface, which amounts to 5 depth of digging,:2 ditch, 187d recovers ore deposit heap production amount of copper after spray and increased
Plus, leaching rate lifting is notable.Leach amount of copper and be shown in Table 2 within single month before and after turning, leaching rate curve is shown in Fig. 2.As shown in Table 2, after turning
Leach amount of copper increase obvious, as can be seen from Figure 2, leaching rate is lifted comparatively fast, and leaching efficiency is improved, the economic effect produced using the present invention
It is beneficial notable.
Leach amount of copper within single month before and after the turning of 2 embodiment of table 2
Claims (1)
1. a kind of method of biological dump leaching ore deposit heap turning, it is characterised in that comprise the following steps：
1) First digging machine has dug the top layer ore that stockyard 6~8m of forefront length direction, depth are stockyard height 1/2 and heap
It is put in ore deposit heap anterior, opens the working face of second excavator；
2) second excavator, which has dug stockyard bottom ore on this working face, is stacked at First digging machine and has been stacked at ore deposit heap
On anterior ore；
3) carry out bottom ore in second excavator and excavate stacking operation simultaneously, First digging machine starts second working face,
It is further continued for retreating the excacation for the surface ore that stockyard 6~8m of length direction, depth are stockyard height 1/2, the ore deposit dug
Clitter is put in the bottom section that second excavator has completed the first job face of excavation, so circulation, final to realize entirely
The uniform turning of stockyard ore；
4) it is stockyard height 1/3~1/2 that some depth are opened on stockyard surface, and slope ratio is 1:1~2:1,15~20m of spacing sky
Channeling, makes the ore that ditching is dug out uniformly flutter in atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547559.XA CN107130110A (en) | 2017-07-06 | 2017-07-06 | A kind of method of biological dump leaching ore deposit heap turning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710547559.XA CN107130110A (en) | 2017-07-06 | 2017-07-06 | A kind of method of biological dump leaching ore deposit heap turning |
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| Publication Number | Publication Date |
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| CN107130110A true CN107130110A (en) | 2017-09-05 |
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| CN201710547559.XA Pending CN107130110A (en) | 2017-07-06 | 2017-07-06 | A kind of method of biological dump leaching ore deposit heap turning |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111047457A (en) * | 2019-12-10 | 2020-04-21 | 万宝矿产有限公司 | Full life cycle management method for production process of heap leaching field |
| CN115161476A (en) * | 2022-07-20 | 2022-10-11 | 万宝矿产有限公司 | Method for reducing iron concentration in secondary copper sulfide ore biological heap leaching system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506279A (en) * | 2015-12-30 | 2016-04-20 | 核工业北京化工冶金研究院 | Method for preventing ore heap hardening |
-
2017
- 2017-07-06 CN CN201710547559.XA patent/CN107130110A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105506279A (en) * | 2015-12-30 | 2016-04-20 | 核工业北京化工冶金研究院 | Method for preventing ore heap hardening |
Non-Patent Citations (2)
| Title |
|---|
| 付真等: "《中国核科学技术进展报告（第一卷）第2册铀矿业分卷 核能动力分卷上》", 30 November 2010 * |
| 杨旭: "《中国科技发展精典文库（上）》", 31 May 2003 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111047457A (en) * | 2019-12-10 | 2020-04-21 | 万宝矿产有限公司 | Full life cycle management method for production process of heap leaching field |
| CN115161476A (en) * | 2022-07-20 | 2022-10-11 | 万宝矿产有限公司 | Method for reducing iron concentration in secondary copper sulfide ore biological heap leaching system |
| CN115161476B (en) * | 2022-07-20 | 2023-06-02 | 万宝矿产有限公司 | Method for reducing concentration of ferric acid in secondary copper sulfide ore biological heap leaching system |
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Application publication date: 20170905 |