CN104263924A - Method and device for increasing material leaching rate of parallel-flow leaching tanks connected in series - Google Patents
Method and device for increasing material leaching rate of parallel-flow leaching tanks connected in series Download PDFInfo
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- CN104263924A CN104263924A CN201410537906.7A CN201410537906A CN104263924A CN 104263924 A CN104263924 A CN 104263924A CN 201410537906 A CN201410537906 A CN 201410537906A CN 104263924 A CN104263924 A CN 104263924A
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- leaching vat
- leaching
- vat
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- feed liquid
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- 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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Abstract
The invention relates to a method and a device for increasing the material leaching rate of parallel-flow leaching tanks connected in series. A bottom-in top-out access method is adopted for a pulp liquid, so that the stay reaction time of the liquid in the leaching tanks is prolonged; the parallel-flow leaching tanks connected in series are arranged in a stepped manner, so that the bottom-in top-out feeding method can be implemented by the aid of the pressure of height differences among steps and the suction of turbine stirring paddles, sedimentation of mineral particles can be reduced, a compressed air sedimentation prevention device can be omitted, and the energy consumption is reduced. The mineral stay reaction time is prolonged, so that the content of metals in slag can be reduced, the leaching rate is increased, and the economic benefit is increased.
Description
Technical field
The present invention relates to a kind of increasing connect and flow method and the device thereof of leaching vat material leaching yield, belong to non-ferrous metal technical field of wet metallurgy.
Background technology
In non-ferrous metal hydrometallurgy, agitation leach technology is extensively applied because of its leaching velocity is fast, leaching yield is high feature.Middle-low grade ore non-ferrous metal content is low, and is often wrapped up by other mineral, therefore needs that ore amount to be processed is large, long reaction time.And the size of single stirred leaching tank is because making difficulty and inconvenient maintenance can not arbitrarily be amplified, for meeting residence time of material requirement, therefore the multiple leaching vat of normal selection are connected and flow leaching.Connect and flow leaching vat generally by echelon formation, material after upper level leaching vat stay for some time overflow to next stage, for preventing particle in bottom land sedimentation, opening for feed is generally selected in above leaching vat sidewall stirring rake, and solid particulate enters next stage import at the effect float downward of blade to overflow port spilling.Visible particle have lost the part residence time in vertical direction; in addition fraction solids particle can be short-circuited phenomenon, directly overflows from overflow port, and in causing producing, leached mud containing metal amount is higher; leaching yield, lower than design load, causes the waste of resource and the decline of the performance of enterprises.The leaching yield of metal is by leaching agent concentration, liquid-solid ratio, reaction times, and the various factors such as stirring intensity, extending the residence time of material in leaching vat is improve the cost-effective mode of leaching yield with increasing stirring intensity.
Summary of the invention
A kind of increasing is the object of the present invention is to provide to connect and flow method and the device thereof of leaching vat material leaching yield, overcome current series connection and flow deficiency that leaching vat arrange because of ore pulp feed liquid turnover mode and stirring rake and cause the loss of residence time of material, reaching the object improving metal leaching rate.
The present invention is a kind of to be increased and connects and flow method and the device thereof of leaching vat material leaching yield, it is characterized by:
(1) leaching vat ore pulp feed liquid turnover mode is bottom in and top out
Ore pulp feed liquid passes through guide shell (12) feed liquor bottom leaching vat, top overflow port (8) fluid; Connected by pipeline (13) between leaching vat; Leach liquor is overflowed by leaching vat top overflow port (8) of last step, delivers to solid-liquid separation process.
(2) alr mode is that lower floor's turbine type stirs, and upper strata vane type stirs
Stirring rake is divided into two-layer up and down, and lower floor is turbine type stirring rake (6), installs, provide suction to feed liquid near guide shell (12) exit, guide shell (12) upper limb distance turbine type stirring rake (6) lower edge 1-100mm; Upper strata is impeller type stirring blade (7), provides shearing force and centrifugal force to feed liquid, makes feed liquid not sedimentation, does rotating forward movement, and increases the contact surface with solvent.
(3) structure of leaching vat
The profile of leaching vat is cylindrical or square, and bottom is done swash plate (3) and prevented macrobead from piling up, the turbine outward flange 1-100mm of swash plate Edge Distance turbine type stirring rake (6); Middle part, bottom arranges perforate (14) according to the size of liquid inlet volume, and bottom outside installs guide shell (12), installation high-voltage hydraulic giant on guide shell, and stopping valve (15) installed by leaching vat inter-stage pipeline (13); Traverse baffle (4) is installed in leaching vat inside, and overflow port (8) is left on leaching vat top.
(4) leaching vat arranged in series
Leaching vat are ladder arranged in series, and leaching vat ladder potential difference is at 0.2 ~ 1.2m.
advantage of the present invention
The present invention connects and flows leaching vat ore pulp feed liquid turnover mode is bottom in and top out, adds the stop reaction times of feed liquid at leaching vat; Connecting and flowing leaching vat is that ladder is arranged, the pressure of the inter-stage discrepancy in elevation and the suction of turbine impeller can realize the feeding manner of bottom in and top out, can reduce the sedimentation of mineral grain and cancel pressurized air anti-sedimentation apparatus, reducing energy consumption; The prolongation mineral stop reaction times can reduce metal in the dreg content, improves leaching yield, reduces leaching vat volume; Improve the utilization ratio of resource, economic benefit is improved.
Accompanying drawing explanation
Fig. 1 is that a kind of increasing is connected and flow the device schematic diagram of leaching vat material leaching yield;
Number in the figure: 1, liquid-inlet pipe; 2, wash tub pipe; 3, swash plate; 4, traverse baffle; 5, sidewall; 6, turbine type stirring rake; 7, impeller type stirring blade; 8, overflow port; 9, base plate 1; 10, gusset; 11, base plate 2; 12, guide shell; 13, pipeline; 14, perforate; 15, stopping valve.
embodiment
embodiment 1
Ore pulp overflows from upper level leaching vat top overflow port, guide shell is entered via pipeline, move to top under the suction that the pressure produced in the inter-stage difference of altitude of leaching vat and turbine type stirring rake produce, spiral under the shearing force and centrifugal action of the generation of upper strata impeller type stirring blade, until outermost layer slurries overflow from overflow port enter next stage leaching vat.Model, the power of the size of leaching vat, structure and stirring rake is determined according to pulp density, density, granular size, flow etc.
copper oxide ore atmospheric agitation leaches example of modification
This technique adopts 1 grade of pulp, connects and flows leaching for 3 grades.Slurrying tank, leaching vat are of a size of φ 5m × 7.5m, liquid-solid ratio 6:1, ore pulp feed liquid flow 100m
3/ h, mass concentration is 28.3%, and proportion is 1.31, and granularity-100 order accounts for 100%, and wherein-200 orders account for 60%.Leaching vat become step arrangement, inter-stage discrepancy in elevation 0.5m.Slurrying tank liquid in-out is upper entering and lower leaving, adds pureed copper oxide ore, input the vitriol oil by pipeline on top by belt, and stirring rake is layer impeller formula, and after pulp, ore pulp is extracted out by pump bottom from the side; Leaching vat liquid in-out mode is bottom in and top out, after ore pulp merges raffinate, pump delivery is to the 1st grade of guide shell, draft tube diameter 200mm, lower floor turbine impeller external diameter 4300m, upper strata impeller diameter 4100mm, turbine impeller lower edge is installed near guide shell exit, spacing 20mm, swash plate Edge Distance turbine outward flange 50mm.Stirring system total power 50kW.Continuous operation does not find sedimentation phenomenon in 30 days, and in leached mud, copper content reduces by 0.05 percentage point.Calculate like this and can increase production cathode copper about 80 tons the whole year.
Claims (1)
1. increase and connect and flow method and the device thereof of leaching vat material leaching yield, it is characterized in that:
(A) leaching vat ore pulp feed liquid turnover mode is bottom in and top out
Ore pulp feed liquid passes through guide shell (12) feed liquor bottom leaching vat, top overflow port (8) fluid; Connected by pipeline (13) between leaching vat; Leach liquor is overflowed by leaching vat top overflow port (8) of last step, delivers to solid-liquid separation process;
(B) alr mode is that lower floor's turbine type stirs, and upper strata vane type stirs
Stirring rake is divided into two-layer up and down, and lower floor is turbine type stirring rake (6), installs, provide suction to feed liquid near guide shell (12) exit, guide shell (12) upper limb distance turbine type stirring rake (6) lower edge 1-100mm; Upper strata is impeller type stirring blade (7), provides shearing force and centrifugal force to feed liquid, makes feed liquid not sedimentation, does rotating forward movement, and increases the contact surface with solvent;
(C) structure of leaching vat
The profile of leaching vat is cylindrical or square, and bottom is done swash plate (3) and prevented macrobead from piling up, the turbine outward flange 1-100mm of swash plate Edge Distance turbine type stirring rake (6); Middle part, bottom arranges perforate (14) according to the size of liquid inlet volume, and bottom outside installs guide shell (12), installation high-voltage hydraulic giant on guide shell, and stopping valve (15) installed by leaching vat inter-stage pipeline (13); Traverse baffle (4) is installed in leaching vat inside, and overflow port (8) is left on leaching vat top;
(D) leaching vat arranged in series
Leaching vat are ladder arranged in series, and leaching vat ladder potential difference is at 0.2 ~ 1.2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410537906.7A CN104263924B (en) | 2014-10-14 | 2014-10-14 | A kind of method and device thereof increasing series connection and flowing leaching tanks material leaching rate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410537906.7A CN104263924B (en) | 2014-10-14 | 2014-10-14 | A kind of method and device thereof increasing series connection and flowing leaching tanks material leaching rate |
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| CN104263924A true CN104263924A (en) | 2015-01-07 |
| CN104263924B CN104263924B (en) | 2016-06-08 |
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| CN201410537906.7A Active CN104263924B (en) | 2014-10-14 | 2014-10-14 | A kind of method and device thereof increasing series connection and flowing leaching tanks material leaching rate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430342A (en) * | 2016-09-21 | 2017-02-22 | 中国船舶工业***工程研究院 | Novel filter separator |
| CN108883420A (en) * | 2016-03-29 | 2018-11-23 | Posco公司 | Deironing apparatus and regenerative system including the deironing apparatus |
| CN110270290A (en) * | 2019-07-05 | 2019-09-24 | 中国神华煤制油化工有限公司 | Continuous washing device and continuous washing alkali washing method and its application |
| CN110964902A (en) * | 2019-12-31 | 2020-04-07 | 温州大学 | Continuous uniform acid leaching device for oxidized ore |
| CN112746167A (en) * | 2019-10-31 | 2021-05-04 | 北矿机电科技有限责任公司 | Coarse particle suspension stirring leaching tank and continuous operation system |
| CN115679126A (en) * | 2022-10-08 | 2023-02-03 | 武汉科技大学 | Vanadium shale step continuous leaching system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004292901A (en) * | 2003-03-27 | 2004-10-21 | Dowa Mining Co Ltd | Leaching method for zinc concentrate |
| CN102505070A (en) * | 2011-09-29 | 2012-06-20 | 云南冶金集团股份有限公司 | Horizontal pressure leaching reaction kettle |
| CN102676801A (en) * | 2012-06-08 | 2012-09-19 | 大兴安岭云冶矿业开发有限公司 | Pressurized leaching kettle |
-
2014
- 2014-10-14 CN CN201410537906.7A patent/CN104263924B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004292901A (en) * | 2003-03-27 | 2004-10-21 | Dowa Mining Co Ltd | Leaching method for zinc concentrate |
| CN102505070A (en) * | 2011-09-29 | 2012-06-20 | 云南冶金集团股份有限公司 | Horizontal pressure leaching reaction kettle |
| CN102676801A (en) * | 2012-06-08 | 2012-09-19 | 大兴安岭云冶矿业开发有限公司 | Pressurized leaching kettle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108883420A (en) * | 2016-03-29 | 2018-11-23 | Posco公司 | Deironing apparatus and regenerative system including the deironing apparatus |
| CN106430342A (en) * | 2016-09-21 | 2017-02-22 | 中国船舶工业***工程研究院 | Novel filter separator |
| CN110270290A (en) * | 2019-07-05 | 2019-09-24 | 中国神华煤制油化工有限公司 | Continuous washing device and continuous washing alkali washing method and its application |
| CN112746167A (en) * | 2019-10-31 | 2021-05-04 | 北矿机电科技有限责任公司 | Coarse particle suspension stirring leaching tank and continuous operation system |
| CN110964902A (en) * | 2019-12-31 | 2020-04-07 | 温州大学 | Continuous uniform acid leaching device for oxidized ore |
| CN115679126A (en) * | 2022-10-08 | 2023-02-03 | 武汉科技大学 | Vanadium shale step continuous leaching system |
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| Publication number | Publication date |
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| CN104263924B (en) | 2016-06-08 |
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Address after: 330031 No. 888, Qian Hu Road, Hongjiao Island, Nanchang, Jiangxi. Patentee after: China ruim engineering technology Limited by Share Ltd Address before: 330063 No. 888, Qian Hu Road, Hongjiao Island, Nanchang, Jiangxi. Patentee before: China Nerin Engineering Co., Ltd. |
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