CN111286602A - Iron removal device and method for wet metallurgy - Google Patents
Iron removal device and method for wet metallurgy Download PDFInfo
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- CN111286602A CN111286602A CN201811495454.5A CN201811495454A CN111286602A CN 111286602 A CN111286602 A CN 111286602A CN 201811495454 A CN201811495454 A CN 201811495454A CN 111286602 A CN111286602 A CN 111286602A
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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
- C22B3/02—Apparatus therefor
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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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
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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
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
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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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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses an iron removal device for hydrometallurgy, which comprises a goethite iron removal component, a supplementary iron removal component, a slurrying transfer component, a first overflow pipe and a second overflow pipe, wherein the goethite iron removal component and the supplementary iron removal component are connected through the first overflow pipe; the invention also discloses an iron removal method for hydrometallurgy; according to the invention, through the mutual matching of the goethite iron removing component, the supplement iron removing component, the slurrying transfer component, the first overflow pipe and the second overflow pipe, the automatic and accurate addition of materials is realized, and the condition that the goethite iron removing component cannot remove iron completely can be prevented through the supplement iron removing component.
Description
Technical Field
The invention belongs to the technical field of wet metallurgy, and particularly relates to a deironing device and method for wet metallurgy.
Background
The leaching and iron removal processes in the hydrometallurgy process are originally batch leaching (acid leaching, reduction acid leaching and oxidation iron removal are integrated), and the process has the following defects: the process index is not accurately controlled, so that the waste of auxiliary materials is caused; reduction acid leaching and oxidation deironing go on in same reation kettle, can often appear reduction acid leaching reaction end point judgement inaccurate, lead to the reductant excessive and the oxidation in the oxidation deironing process oxidant excessive condition, cause the auxiliary material extravagant to the overflow pipe among the current device all sets up inside reation kettle, and the desoldering phenomenon can appear in mechanical stirring's in-process overflow pipe.
Disclosure of Invention
The invention aims to provide a deironing device for hydrometallurgy, which changes the internal embedding of an overflow pipe into external connection, avoids the overflow pipe from falling off from the inner wall of a storage tank due to mechanical stirring and reduces the maintenance cost.
Another object of the present invention is to provide a method for iron removal for hydrometallurgy.
The technical scheme adopted by the invention is that,
the utility model provides a deironing device for hydrometallurgy, its includes goethite deironing subassembly, supplementary deironing subassembly, slurrying transfer subassembly, first overflow pipe and second overflow pipe, goethite deironing subassembly and supplementary deironing subassembly are connected through first overflow pipe, supplementary deironing subassembly and slurrying transfer subassembly pass through the second overflow pipe and connect.
The present invention is also characterized in that,
goethite deironing subassembly includes that first reation kettle, first pH control unit, first temperature control unit, first stirring unit and thick liquids add the unit, the input of first pH control unit, first temperature control unit, first stirring unit and thick liquids add the unit all sets up outside first reation kettle, and the output stretches into in the first reation kettle.
The first pH control unit comprises an online pH meter, a pH controller, a liquid caustic soda storage tank, a flow meter and a control valve, wherein one end of the pH controller is connected with the online pH meter and used for receiving the pH value of the slurry detected by the online pH meter, and the other end of the pH controller is connected with the control valve; and the device is used for comparing the detected pH value of the slurry with a preset pH threshold value and further controlling the opening and closing of the liquid caustic soda control valve according to a comparison result.
The first temperature control unit comprises a temperature sensor, a temperature controller, a steam source, a flow meter and a control valve, one end of the temperature controller is connected with the temperature sensor and used for receiving the temperature of the slurry detected by the temperature sensor, the other end of the temperature controller is connected with the control valve and used for comparing the temperature of the detected slurry with a preset temperature threshold value, and then the control valve is controlled to be opened and closed according to a comparison result.
The supplementary deironing subassembly includes second reation kettle, second pH the control unit and second stirring unit, the output setting of second pH the control unit and second stirring unit is in second reation kettle, and the input sets up outside second reation kettle.
The slurrying transfer assembly comprises a third reaction kettle, a second temperature control unit and a third stirring unit, wherein the output ends of the second temperature control unit and the third stirring unit are arranged in the third reaction kettle, and the input end of the second temperature control unit and the third stirring unit is arranged outside the third reaction kettle.
The first overflow pipe is obliquely arranged and inclines downwards according to the sequence from the goethite iron removing assembly to the supplementary iron removing assembly.
A method for removing iron in hydrometallurgy is implemented according to the following steps:
and 3, conveying the slurry subjected to iron removal in the step 2 to a slurrying transfer assembly through a second overflow pipe for subsequent filter pressing.
In the step 1, the pH value of the slurry is controlled to be 2.5-3.0, and the temperature is controlled to be 60-70 ℃.
And in the step 2, the pH value of the slurry is controlled to be 3.0-3.5.
The invention has the advantages that the goethite iron removing component, the supplement iron removing component, the slurrying transfer component, the first overflow pipe and the second overflow pipe are matched with each other, so that the materials are automatically and accurately added, and the condition that the goethite iron removing component cannot completely remove iron can be prevented by the supplement iron removing component.
Drawings
FIG. 1 is a schematic structural diagram of an iron removal device for hydrometallurgy, provided in example 1 of the present invention;
fig. 2 is a detailed structural schematic diagram of an iron removal device for hydrometallurgy provided in embodiment 1 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
like this, adopt above-mentioned structure, most iron is detached at first in goethite deironing subassembly 1 to the thick liquids, at the in-process of reaction, the overflow part flows to supplementary deironing subassembly 2 through first overflow pipe 4 and makes the deironing thoroughly, flow to slurrying transfer subassembly 3 through second overflow pipe 5 at last and carry out the subsequent handling, the deironing effect has been guaranteed to double-deck deironing, first overflow pipe 4 and second overflow pipe 5 are used for connecting iron ore subassembly 1 respectively, supplementary deironing subassembly 2 and supplementary deironing subassembly 2, slurrying transfer subassembly 3, the tradition has been abandoned and has set up the overflow pipe in reation kettle, make whole process more continuous, and avoided mechanical stirring to lead to the overflow pipe to drop from the reation kettle inner wall.
The goethite deironing assembly 1 comprises a first reaction kettle 11, a first pH control unit 12, a first temperature control unit 13, a first stirring unit 14 and a slurry adding unit 15, wherein the input ends of the first pH control unit 12, the first temperature control unit 13, the first stirring unit 14 and the slurry adding unit 15 are all arranged outside the first reaction kettle 11, and the output ends of the first pH control unit 12, the first temperature control unit 13, the first stirring unit 14 and the slurry adding unit 15 extend into the first reaction kettle 11;
in this way, the pH and temperature of the slurry in the first reaction vessel 11 are controlled by the first pH control means 12 and the first temperature control means 13, and the reaction is sufficiently performed.
And, the slurry feeding unit 15 is connected to the first reaction tank 11 through at least two pipes, so that the slurry can be uniformly injected into the first reaction tank 11.
The first pH control unit 12 includes an online pH meter 121, a pH controller 122, a caustic soda liquid storage tank 123, a flow meter, and a control valve, wherein one end of the pH controller 122 is connected to the online pH meter 121 for receiving the pH value of the slurry detected by the online pH meter 121, and the other end is connected to the control valve; the device is used for comparing the detected pH value of the slurry with a preset pH threshold value and further controlling the opening and closing of a liquid caustic soda control valve according to a comparison result;
in this way, the on-line pH meter 121 detects the pH value of the slurry in real time, and transmits the pH value to the pH controller 122, and the pH controller 122 compares the received pH value with a preset pH threshold value, and determines whether the addition of the alkali solution and the addition amount are required through a comparison structure.
In addition, the liquid caustic soda storage tank 123 is connected with the first reaction kettle 11 through at least two pipelines, so that the added lye can be more uniform.
The first temperature control unit 13 comprises a temperature sensor 131, a temperature controller 132, a steam source 133, a flow meter and a control valve, wherein one end of the temperature controller 132 is connected with the temperature sensor 131 and used for receiving the temperature of the slurry detected by the temperature sensor 131, and the other end of the temperature controller 132 is connected with the control valve and used for comparing the detected temperature of the slurry with a preset temperature threshold value, and further controlling the control valve to open and close according to the comparison result;
in this way, the temperature sensor 131 detects the temperature of the slurry in real time and transmits the temperature to the temperature controller 132, and the temperature controller 132 compares the received temperature with a preset temperature threshold, and determines whether the steam source 133 needs to be turned on through a comparison structure.
The supplementary deironing subassembly 2 includes second reation kettle 21, second pH control unit 22 and second stirring unit 23, the output setting of second pH control unit 22 and second stirring unit 23 is in second reation kettle 21, and the input setting is outside second reation kettle 21.
The slurrying transfer component 3 comprises a third reaction kettle 31, a second temperature control unit 32 and a third stirring unit 33, wherein the output ends of the second temperature control unit 32 and the third stirring unit 33 are arranged in the third reaction kettle 31, and the input ends are arranged outside the third reaction kettle 31; the second temperature control unit 32 has the same structure as the first temperature control unit 13.
The first overflow pipe 4 is obliquely arranged and inclines downwards according to the sequence from the goethite iron removing assembly 1 to the supplementary iron removing assembly 2;
this embodiment is through the goethite deironing subassembly, supplyes deironing subassembly, pulp transfer subassembly, mutually support between first overflow pipe and the second overflow pipe, has realized the automatic accurate of material and has added, and can prevent the not thorough condition of goethite deironing subassembly deironing through supplyes deironing subassembly.
and 3, conveying the slurry subjected to iron removal in the step 2 to a slurrying transfer component 3 through a second overflow pipe 5 for subsequent pressure filtration.
The iron removal method provided by the embodiment realizes automatic control of iron removal, and the production line realizes the change from manual interruption to continuous automatic control, so that the working environment is improved, and the production cost is greatly reduced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a deironing device for hydrometallurgy, its characterized in that, it includes goethite deironing subassembly (1), supplements deironing subassembly (2), slurrying transfer subassembly (3), first overflow pipe (4) and second overflow pipe (5), goethite deironing subassembly (1) is connected through first overflow pipe (4) with supplementary deironing subassembly (2), it connects through second overflow pipe (5) to supplement deironing subassembly (2) and slurrying transfer subassembly (3).
2. The deironing device for hydrometallurgy according to claim 1, characterized in that the goethite deironing assembly (1) comprises a first reaction kettle (11), a first pH control unit (12), a first temperature control unit (13), a first stirring unit (14) and a slurry adding unit (15), wherein the input ends of the first pH control unit (12), the first temperature control unit (13), the first stirring unit (14) and the slurry adding unit (15) are all arranged outside the first reaction kettle (11), and the output ends of the first pH control unit (12), the first temperature control unit (13), the first stirring unit (14) and the slurry adding unit (15) extend into the first reaction kettle (11).
3. The iron removal device for hydrometallurgy according to claim 2, characterized in that, the first pH control unit (12) includes an on-line pH meter (121), a pH controller (122), a liquid caustic storage tank (123), a flow meter and a control valve, one end of the pH controller (122) is connected with the on-line pH meter (121) for receiving the pH value of the slurry detected by the on-line pH meter (121), and the other end is connected with the control valve; and the device is used for comparing the detected pH value of the slurry with a preset pH threshold value and further controlling the opening and closing of the liquid caustic soda control valve according to a comparison result.
4. The deironing device for hydrometallurgy according to claim 3, characterized in that, said first temperature control unit (13) includes a temperature sensor (131), a temperature controller (132), a steam source (133), a flow meter and a control valve, one end of said temperature controller (132) is connected with the temperature sensor (131) for receiving the temperature of the slurry detected by the temperature sensor (131), and the other end is connected with the control valve for comparing the detected temperature of the slurry with a preset temperature threshold value, and further controlling the opening and closing of the control valve according to the comparison result.
5. The deironing device for hydrometallurgy according to claim 4, characterized in that, said supplementary deironing subassembly (2) includes a second reaction vessel (21), a second pH control unit (22) and a second stirring unit (23), the output ends of said second pH control unit (22) and said second stirring unit (23) are arranged in said second reaction vessel (21), and the input ends are arranged outside said second reaction vessel (21).
6. The iron removal device for hydrometallurgy according to claim 5, wherein, said slurrying transfer assembly (3) includes a third reaction vessel (31), a second temperature control unit (32) and a third stirring unit (33), the output ends of said second temperature control unit (32) and said third stirring unit (33) are disposed in said third reaction vessel (31), and the input end is disposed outside said third reaction vessel (31).
7. The iron removal plant for hydrometallurgy according to any one of claims 1 to 6, characterized in that said first overflow pipe (4) is arranged inclined and is inclined downwards in the order of goethite iron removal unit (1) to supplementary iron removal unit (2).
8. A method for removing iron in hydrometallurgy is characterized by comprising the following steps:
step 1, slurry is injected into a first reaction kettle (11) through a slurry adding unit (15), when the first stirring unit (14) is submerged by the slurry, the first stirring unit (14) starts to work, and the pH value and the temperature of the slurry are regulated and controlled through a first pH control unit (12) and a first temperature control unit (13);
step 2, with the reaction of the step 1, the slurry overflows into a second reaction kettle (21) through a first overflow pipe (4), and the iron removal of the slurry is finished in the second reaction kettle (21) through a second pH control unit (22) and a second stirring unit (23);
and 3, conveying the slurry subjected to iron removal in the step 2 to a slurrying transfer component (3) through a second overflow pipe (5) for subsequent filter pressing.
9. The iron removal method for hydrometallurgy according to claim 8, characterized in that, the pH value of the slurry is controlled between 2.5-3.0 and the temperature is controlled between 60-70 ℃ in step 1.
10. The iron removal method for hydrometallurgy according to claim 9, characterized in that, the pH value of the slurry is controlled between 3-3.5 in step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495454.5A CN111286602A (en) | 2018-12-07 | 2018-12-07 | Iron removal device and method for wet metallurgy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495454.5A CN111286602A (en) | 2018-12-07 | 2018-12-07 | Iron removal device and method for wet metallurgy |
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| CN111286602A true CN111286602A (en) | 2020-06-16 |
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| CN201811495454.5A Pending CN111286602A (en) | 2018-12-07 | 2018-12-07 | Iron removal device and method for wet metallurgy |
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Citations (9)
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| CN103014344A (en) * | 2012-12-31 | 2013-04-03 | 株洲冶炼集团股份有限公司 | Method for two-stage iron settlement in high-temperature peracid zinc leachate |
| CN103834807A (en) * | 2012-11-20 | 2014-06-04 | 中核建中核燃料元件有限公司 | Iron removing method for sulfuric acid leaching solution |
| CN203960296U (en) * | 2014-07-08 | 2014-11-26 | 天津市茂联科技有限公司 | A kind of high iron solution continuous deferrization equipment |
| CN105420493A (en) * | 2015-12-28 | 2016-03-23 | 云南云铜锌业股份有限公司 | Wet-metallurgy continuous reaction kettle equipment |
| CN106566926A (en) * | 2016-11-22 | 2017-04-19 | 江苏凯力克钴业股份有限公司 | Deironing device, and low-temperature continuous deironing method |
| CN106756022A (en) * | 2016-11-29 | 2017-05-31 | 金川集团股份有限公司 | A kind of two sections of low temperature method for removing iron of copper-cobalt mine leachate |
| CN206418167U (en) * | 2016-11-22 | 2017-08-18 | 江苏凯力克钴业股份有限公司 | A kind of deironing apparatus |
| CN108060303A (en) * | 2017-11-13 | 2018-05-22 | 中国恩菲工程技术有限公司 | The method that iron is removed in hydrometallurgy iron-containing liquor |
| CN209537580U (en) * | 2018-12-07 | 2019-10-25 | 格林美（江苏）钴业股份有限公司 | One kind being used for hydrometallurgical deironing apparatus |
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2018
- 2018-12-07 CN CN201811495454.5A patent/CN111286602A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834807A (en) * | 2012-11-20 | 2014-06-04 | 中核建中核燃料元件有限公司 | Iron removing method for sulfuric acid leaching solution |
| CN103014344A (en) * | 2012-12-31 | 2013-04-03 | 株洲冶炼集团股份有限公司 | Method for two-stage iron settlement in high-temperature peracid zinc leachate |
| CN203960296U (en) * | 2014-07-08 | 2014-11-26 | 天津市茂联科技有限公司 | A kind of high iron solution continuous deferrization equipment |
| CN105420493A (en) * | 2015-12-28 | 2016-03-23 | 云南云铜锌业股份有限公司 | Wet-metallurgy continuous reaction kettle equipment |
| CN106566926A (en) * | 2016-11-22 | 2017-04-19 | 江苏凯力克钴业股份有限公司 | Deironing device, and low-temperature continuous deironing method |
| CN206418167U (en) * | 2016-11-22 | 2017-08-18 | 江苏凯力克钴业股份有限公司 | A kind of deironing apparatus |
| CN106756022A (en) * | 2016-11-29 | 2017-05-31 | 金川集团股份有限公司 | A kind of two sections of low temperature method for removing iron of copper-cobalt mine leachate |
| CN108060303A (en) * | 2017-11-13 | 2018-05-22 | 中国恩菲工程技术有限公司 | The method that iron is removed in hydrometallurgy iron-containing liquor |
| CN209537580U (en) * | 2018-12-07 | 2019-10-25 | 格林美（江苏）钴业股份有限公司 | One kind being used for hydrometallurgical deironing apparatus |
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