CN203569204U - PH (power of hydrogen) control system in nickel electrolysis purification system - Google Patents
PH (power of hydrogen) control system in nickel electrolysis purification system Download PDFInfo
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- CN203569204U CN203569204U CN201320625828.7U CN201320625828U CN203569204U CN 203569204 U CN203569204 U CN 203569204U CN 201320625828 U CN201320625828 U CN 201320625828U CN 203569204 U CN203569204 U CN 203569204U
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- Prior art keywords
- meter
- reaction
- chute
- liquid outlet
- outlet pipeline
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 20
- 238000000746 purification Methods 0.000 title claims abstract description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title abstract 2
- 238000005868 electrolysis reaction Methods 0.000 title abstract 2
- 229910052739 hydrogen Inorganic materials 0.000 title abstract 2
- 239000001257 hydrogen Substances 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 45
- 238000005363 electrowinning Methods 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 13
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000001139 pH measurement Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract 7
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000003541 multi-stage reaction Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 22
- 230000001276 controlling effect Effects 0.000 description 12
- 230000002000 scavenging effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 description 2
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
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- Electrolytic Production Of Metals (AREA)
Abstract
The utility model discloses a pH (power of hydrogen) control system in a nickel electrolysis purification system, which comprises a pH meter, wherein the pH meter is divided into a primary pH meter, a secondary pH meter and a tertiary pH meter; the primary pH meter is arranged on a first reaction chute liquid outlet pipeline; an electrolyte regulating valve is arranged on a first reaction chute liquid inlet pipeline; the secondary pH meter is arranged on an intermediate reaction chute liquid outlet pipeline; the tertiary pH meter is arranged on a tail end reaction chute liquid outlet pipeline; and the electrolyte regulating valve, the primary pH meter, the secondary pH meter and the tertiary pH meter are connected with a PLC (programmable logic controller). According to the pH control system, two pH measurement control points are arranged on the first reaction chute liquid outlet pipeline and the intermediate reaction chute liquid outlet pipeline of a multi-stage reaction chute; measurement control points of the pH meter are related to the electrolyte regulating valve by the PLC; a pH detection point is arranged on the tail end chute liquid outlet pipeline, and connected with the PLC; an internal relation among the control points and a relation between the control points and a practical pH value are determined according to a reaction system; and a control value and a control function of each pH measurement point are determined.
Description
Technical field
The utility model relates to the pH Controlling System technical field in chemical process, is specifically related to pH Controlling System in a kind of nickel electrowinning purification system.
Background technology
Nickel electrowinning scavenging process mainly comprises nickelous carbonate making, deironing, copper removal, removes cobalt operation.Its Principle of Process is: by adding alkaline regulator solution to make within nickel electrolyte maintains different pH scopes, to realize the hydrolytic precipitation of iron, copper, cobalt, thereby reach the object of electrolyte purification.But due to the time stickiness of reactant id reaction, each operation of scavenging process all adopts plural serial stage reaction chute so that reaction process is moved continuously.And each procedure requires all differences to the control of pH, end reaction chute outlet solution therefore need to be controlled at a specific pH scope, is beneficial to the carrying out of next process.Because the reaction process of reaction of high order chute is longer, reaction solution is longer to the required time of end reaction chute from first order reaction chute, makes pH value regulating and controlling have hysteresis quality problem, the serious hysteresis that this has just caused end reaction chute pH to control.The control problem that purifies Large-lag System pH for nickel electrowinning does not have good method at present, causes the fluctuation of final pH controlling valu larger, is unfavorable for the stable of production process.
Utility model content
During technical problem to be solved in the utility model, for current nickel electrowinning, purifying each operation reaction of high order chute pH controls the shortcoming of the hysteresis quality existing and provides a kind of can realization to control without pH Controlling System in a kind of nickel electrowinning purification system of hysteresis, final pH value stabilization.
For solving technical problem of the present utility model, adopt following technical scheme:
PH Controlling System in a kind of nickel electrowinning purification system, comprise pH meter, described pH meter is divided into one-level pH meter, secondary pH meter and three grades of pH meters, described one-level pH meter is arranged on the first reaction chute fluid pipeline, on described the first reaction chute feed liquor pipeline, regulator solution variable valve is set, described secondary pH meter is arranged on intermediate reaction chute fluid pipeline, described three grades of pH meters are arranged on latter end reaction chute fluid pipeline, and described regulator solution variable valve, one-level pH meter, secondary pH meter and three grades of pH meters are all connected with PLC controller.
The utility model is on the first reaction chute fluid pipeline of reaction of high order chute and on intermediate reaction chute fluid pipeline, two pH Surveying Control Point are set, pH meter Surveying Control Point and regulator solution variable valve are associated by PLC controller, on chute fluid pipeline, pH check point is set endways, pH check point is connected with PLC controller, according to reaction system situation determine internal relation between each reference mark and and actual pH between be related to rule, determine controlling valu and the control function of each pH measurement point, that a kind of can realization controlled without lagging behind, pH Controlling System in a kind of nickel electrowinning purification system of final pH value stabilization.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model logic relation picture.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, pH Controlling System in a kind of nickel electrowinning purification system, comprise pH meter, pH meter is divided into one-level pH meter 2, secondary pH meter 3 and three grades of pH meters 4, one-level pH meter 2 is arranged on the first reaction chute fluid pipeline, on the first reaction chute fluid inlet, regulator solution variable valve 1 is installed, secondary pH3 meter is arranged on intermediate reaction chute fluid pipeline, three grades of pH meters 4 are arranged on latter end reaction chute fluid pipeline, and regulator solution variable valve 1, one-level pH meter 2, secondary pH meter 3 and three grades of pH meters 4 are all connected with PLC controller 5.
As shown in Figure 2, keeping reaction flow of electrolyte is steady state value, thereby by regulator solution variable valve 1, regulates the pH value of the flow adjustment and control system of regulator solution in logic control of the present utility model.Reaction electrolytic solution is through the Surveying Control Point of one-level pH meter 2, the Surveying Control Point of the Surveying Control Point of secondary pH meter 3 and three grades of pH meters 4, one-level pH meter 2 and secondary pH meter 3 are associated with regulator solution variable valve 1 by PLC controller 5, PLC controller 5 is according to one-level pH meter 2 and secondary pH meter 3 measuring result reaction system situations, determine internal relation between each reference mark and and actual pH between be related to rule, determine controlling valu and the control function of each pH measurement point, regulator solution variable valve 1 is regulated, 4 pairs of reaction electrolytic solution final pH of three grades of pH meters detect, and feed back on PLC controller 5, by PLC controller 5, judged, until pH value reaches the controlling valu that next unit link requires.
The 5 order reaction chutes that nickelous carbonate is made in nickel electrowinning purification system of take are example, as shown in Figure 1, the flow of nickel electrowinning scavenging solution keeps constant inflow first step reaction chute 6, while arriving one-level pH meter 2 through first step reaction chute 6, the pH value that one-level pH meter 2 is measured feeds back to PLC controller 5, and PLC controller 5 changes the flow of regulator solution according to default funtcional relationship to the aperture adjustment of regulator solution variable valve 1 and then changes the pH value of nickel electrowinning scavenging solution system.Nickel electrowinning scavenging solution continues operation downwards successively through second stage reaction chute 7 and third stage reaction chute 8, when arriving secondary pH meter 3, the pH value that secondary pH meter 3 is measured feeds back to PLC controller 5, and PLC controller 5 changes the flow of regulator solution according to default funtcional relationship to the aperture adjustment of regulator solution variable valve 1 and then changes the pH value of nickel electrowinning scavenging solution system.Subsequently, nickel electrowinning scavenging solution continues operation downwards again through fourth stage reaction chute 9 and level V reaction chute 10, and while arriving three grades of pH meters 4, it detects and feed back to PLC controller 5 to nickel electrowinning scavenging solution final pH.
Claims (1)
1. pH Controlling System in a nickel electrowinning purification system, comprise pH meter, it is characterized in that: described pH meter is divided into one-level pH meter (2), secondary pH meter (3) and three grades of pH meters (4), described one-level pH meter (2) is arranged on the first reaction chute fluid pipeline, on described the first reaction chute feed liquor pipeline, regulator solution variable valve (1) is set, described secondary pH meter (3) is arranged on intermediate reaction chute fluid pipeline, described three grades of pH meters (4) are arranged on latter end reaction chute fluid pipeline, described regulator solution variable valve (1), one-level pH meter (2), secondary pH meter (3) is all connected with PLC controller (5) with three grades of pH meters (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625828.7U CN203569204U (en) | 2013-10-11 | 2013-10-11 | PH (power of hydrogen) control system in nickel electrolysis purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625828.7U CN203569204U (en) | 2013-10-11 | 2013-10-11 | PH (power of hydrogen) control system in nickel electrolysis purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203569204U true CN203569204U (en) | 2014-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320625828.7U Expired - Fee Related CN203569204U (en) | 2013-10-11 | 2013-10-11 | PH (power of hydrogen) control system in nickel electrolysis purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203569204U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603467A (en) * | 2016-02-19 | 2016-05-25 | 金川集团股份有限公司 | Hysteretic pH value control device and control method |
| CN106978618A (en) * | 2017-04-04 | 2017-07-25 | 上饶市鸿基铝业有限公司 | A kind of aluminium alloy high-efficiency environment friendly oxidation technology method |
| CN113957490A (en) * | 2021-11-05 | 2022-01-21 | 金川集团股份有限公司 | Electrolytic nickel purification and impurity removal reaction tank and method thereof |
-
2013
- 2013-10-11 CN CN201320625828.7U patent/CN203569204U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105603467A (en) * | 2016-02-19 | 2016-05-25 | 金川集团股份有限公司 | Hysteretic pH value control device and control method |
| CN106978618A (en) * | 2017-04-04 | 2017-07-25 | 上饶市鸿基铝业有限公司 | A kind of aluminium alloy high-efficiency environment friendly oxidation technology method |
| CN113957490A (en) * | 2021-11-05 | 2022-01-21 | 金川集团股份有限公司 | Electrolytic nickel purification and impurity removal reaction tank and method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20161011 |
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| CF01 | Termination of patent right due to non-payment of annual fee |