CN101187054A - On-line ion exchange and recovery nickel-plating waste water control device - Google Patents
On-line ion exchange and recovery nickel-plating waste water control device Download PDFInfo
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- CN101187054A CN101187054A CN 200710046107 CN200710046107A CN101187054A CN 101187054 A CN101187054 A CN 101187054A CN 200710046107 CN200710046107 CN 200710046107 CN 200710046107 A CN200710046107 A CN 200710046107A CN 101187054 A CN101187054 A CN 101187054A
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Abstract
The invention discloses a control device of recovering nickel plating wastewater through on-line ion-exchange, which is suitable for a nickel plating wastewater recovery system, the control device comprises a PH sensor, a conductivity sensor, an electromagnetic valve and a control unit, wherein the PH sensor tests the PH value of a water outlet of one of ion exchange columns of the nickel plating wastewater recovery system, the control unit judges whether a corresponding ion exchange column is failure or not according to the changing of the PH value, the conductivity sensor tests the conductivity of the recovered water of the nickel plating wastewater recovery system, the opening and closing of the electromagnetic valve are controlled according to the conductivity, thereby controlling a water supplement mechanism of the nickel plating wastewater recovery system to supply water or not. The invention is capable of improving the utilization ratio of resin of the ion exchange columns and the recycle rate of wastewater of the system.
Description
Technical field
The present invention relates to a kind of wastewater processing technology of ion exchange method, relate in particular to a kind of control device that WITH ON-LINE ION-EXCHANGE reclaims nickel-plating waste water efficient and effect that improves.
Background technology
In water technology, the spent ion exchange resin method is handled electroplating wastewater, and its simple process is, reclaims metal the electroplating wastewater after cleaning plating piece, will reclaim the waste water reuse again behind the metal again, as rinse water.Its advantage is that it is good to handle the back effluent quality, and can realize the reuse of water and the recovery of metal, so ion-exchange-resin process once was one of most widely used technology in China's electroplating wastewater processing.
But, handle popularizing of electroplating wastewater method and popularization thereby limited ion-exchange-resin process because ion-exchange-resin process processing electroplating wastewater operation and management expectancy realize that than higher the difficulty of automatization is bigger.With the online recovery nickel-plating waste water of weakly acidic cationic exchanger resin, make ion exchange technique realize operation automation, need control two key points well, the one, the saturation point of ion exchange resin, the 2nd, the water quality reference mark of cycling use of water.At present mostly adopt the method for manual observation method or sampling analysis to control.Owing to be subjected to the artificial factor and the influence in analysis means and cycle, Wastewater Recovery efficient and effect to be difficult to guarantee.Chance causes still continuing operation after the saturated inefficacy of resin when incuring loss through delay resin regeneration, and consequently nickel ion influences the plating piece cleaning performance because of nickel ion concentration in the recirculated water improves simultaneously because of not running off by active adsorption.In addition, salt branch progressively accumulates when reuse water recycles, if underexercise additional clean water also can influence the plating piece cleaning performance, as excessive replenishing then can be reduced the rate of recovery of nickel in the waste water and the reclamation rate of water.
Summary of the invention
Technical problem to be solved by this invention provides the control device that a kind of WITH ON-LINE ION-EXCHANGE reclaims nickel-plating waste water, in order to differentiate and control weakly acidic cationic exchanger resin saturation point and reuse water saltiness, to improve the metal recovery efficient in the waste water, the reclamation rate and the plating piece cleaning performance of water simultaneously.
The present invention solves the problems of the technologies described above the technical scheme that adopts to provide the control device that a kind of WITH ON-LINE ION-EXCHANGE reclaims nickel-plating waste water, be applicable to nickel plating waste water reclaiming system, this system comprises one first rinse tank, one second rinse tank, one water pump, and at least one ion exchange column, wherein the outlet output from first rinse tank contains the rinse water of nickel ion to this water pump, after inputing to the ion exchange column filtration, water pump is fed back to this second rinse tank, this system also comprises the water compensation mechanism that this second rinse tank is replenished cleaning water, this control device comprises: the pH transmitter, the water outlet of an ion exchange column located therein is to detect the pH value of this water outlet; Conductivity sensor is located on the recycle-water pipeline that first rinse tank is exported to second rinse tank, reclaims electrical conductivity of water to detect; Magnetic valve is located on the water compensation mechanism, with the moisturizing of control water compensation mechanism; Control unit, be connected with magnetic valve with pH value transmitter, conductivity sensor, this control unit receives this pH value and specific conductivity, changes the state of judging its corresponding ion exchange column according to this pH value, and the opening and closing of controlling this magnetic valve according to this specific conductivity.
In the above-mentioned control device, the quantity of this ion exchange column is more than two, and this pH value transmitter is located at the water outlet from first or second ion exchange column of this water pump side.
In the above-mentioned control device, this control unit has a predetermined pH interval, and when this pH value entered this predetermined pH interval and keeps a setting-up time, this control unit judged that corresponding ion exchange column lost efficacy.
In the above-mentioned control device, when ion exchange column lost efficacy, this control unit signal that gives the alarm.
In the above-mentioned control device, this predetermined pH interval is 4～7.
In the above-mentioned control device, this conductivity sensor is located at the water outlet place of this water pump.
In the above-mentioned control device, this control unit has a specific conductivity reference mark, and when specific conductivity surpassed this specific conductivity reference mark, control unit was controlled this magnetic valve and opened, and makes this water compensation mechanism to the second rinse tank moisturizing; When specific conductivity was lower than the specific conductivity reference mark, control unit control closed electromagnetic valve stopped to the second rinse tank moisturizing water compensation mechanism.
The present invention is owing to adopt above technical scheme, make it compared with prior art, on the one hand, can judge ion exchange resin saturating point, improve the effective rate of utilization of ion exchange resin, both prevented resin unsaturation regeneration and reduced the resin utilization ratio, prevented again that the saturated back of resin from continuing to use and cause and the loss of nickel improve metal recovery efficient; On the other hand, use the present invention and can guarantee cleaning performance, improve wastewater recycle rate according to the saltiness of the accurate Control Circulation reuse water of plating piece cleaning requirement.Since moisturizing opportunity accurately, can also effectively reduce the make up water consumption.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is waste water reclamation and the recycle system synoptic diagram with control device of the present invention.
Embodiment
The objective of the invention is to differentiate and control weakly acidic cationic exchanger resin online recovery nickel-plating waste water resin saturating point and the control of reuse water saltiness, for the timely regeneration of saturated resin and the additional opportunity and the magnitude of recruitment of rinse water provide effective means.
Fig. 1 is waste water reclamation and the recycle system synoptic diagram with control device of the present invention.See also shown in Figure 1, the waste water reclamation and the recycle system comprise nickel bath 11, accumulator tank 12, first rinse tank 13, second rinse tank 14, water pump 15 and a plurality of ion exchange column 16～18, wherein nickeliferous solution is brought rinse tank into through accumulator tank 12 in the Ni-Speed, and plating piece successively cleans at first rinse tank 13 and second rinse tank 14.Nickeliferous waste water is extracted out from the outlet of first rinse tank 13 by water pump 15, successively through first exchange column 16, second exchange column 17, the 3rd exchange column 18, nickel ion in the waste water is adsorbed on the weakly acidic cationic exchanger resin in the exchange column, then, the water of purification is transported to 14 reuses of second rinse tank by pipeline.
Though it should be noted that nickel ion is removed in removal process, saltiness total in the water does not reduce, and along with the continuous circulation of reuse water, salinity has the trend of accumulation, therefore needs suitably to replenish clear water.In the import of second rinse tank 14, also be provided with a water compensation mechanism 19, it replenishes cleaning water by pipeline to second rinse tank 14.
The following describes the composition and the principle of work of control device of the present invention.
Please still consult shown in Figure 1ly, this control device comprises pH transmitter 21, conductivity sensor 22, magnetic valve 23 and control unit 24.PH transmitter 21 can be installed in the water outlet of each ion exchange column, to detect the pH value of this water outlet.In this embodiment, pH transmitter 21 is located at the water outlet of first exchange column 16, and the pH value signal of its detection is dealt into control unit 24.Conductivity sensor 22 is located on the recycle-water pipeline that is exported to second rinse tank 14 of first rinse tank 13, reclaims electrical conductivity of water C in order to detect.For instance, the ingress that conductivity sensor 22 can be located at first exchange column 16 (is the exit of water pump, as shown in Figure 1), or the exit of the 3rd exchange column 18, characterize the conductivity value C of the situation of salt accumulation with acquisition, and be sent to control unit 24.In addition, magnetic valve 23 is located on the pipeline of water compensation mechanism 19 and is connected to control unit 24, and magnetic valve 23 receives the signal of control units 24, with the beginning of control moisturizing with stop.
Above-mentioned setting-up time for example is 3～7 hours, and do not require very strict, when in system, having a plurality of ion exchange column, allow longer setting-up time, even allow to replace again after for some time after an exchange column reaches capacity therein, as long as during this period, ion exchange column thereafter is still effective.
The quantity of above-mentioned ion exchange column is only for for example, not in order to restriction the present invention.In the present invention, the quantity of ion exchange column is more than 1, wherein when the quantity of ion exchange column is 1, and the situation that may exist the resin unsaturation to replace, and comparatively strict to the requirement of above-mentioned pH value and setting-up time; Therefore ion exchange column quantity is preferably 2～3.When the quantity of ion exchange column is 2～3, pH transmitter 21 can be located at the outlet (as above-mentioned embodiment) of first exchange column (from the exit of pump side), yet be preferably the outlet that is located at second exchange column (as above-mentioned second exchange column 17), can change first, second exchange column simultaneously like this, reduce the frequency that exchange column is changed, increase work efficiency.In addition, when the quantity of ion exchange column surpasses 3, should select the water pump of bigger lift in practice.
In addition, control unit 24 is controlled the opening and closing of this magnetic valve 23 according to this specific conductivity C, with the control moisturizing.In the present invention, can set different specific conductivity reference mark according to the water quality requirement of different user.For instance, control unit 24 can be set a specific conductivity reference mark.In one embodiment, this reference mark can be 1400 μ S/cm.Along with the equipment operation, the saltiness that loops back in the water progressively rises, when control unit 24 detects the cyclically utilizing electrical conductivity of water above 1400 μ S/cm, saltiness in the proof water is higher than the acceptable value, the cleaning performance of plating piece will be influenced, this moment, control unit 24 control magnetic valves 23 were opened, and the water of cleaning replenishes and enters second rinse tank 14, and the saltiness of recirculated water descends thereupon; When control unit 24 detected the reuse electrical conductivity of water and drops to 1400 μ S/cm again, control magnetic valve 23 cut out, and stops moisturizing.Specific conductivity control can make the recovery of nickel-plating waste water reach high as far as possible level under the prerequisite that guarantees the plating piece cleaning performance.
Therefore, use control device of the present invention, can judge ion exchange resin saturating point on the one hand, improve the effective rate of utilization of ion exchange resin, both prevent the regeneration of resin unsaturation and reduced the resin utilization ratio, prevent the saturated back of resin from continuing to use again and cause and the loss of nickel improve metal recovery efficient; On the other hand, use the present invention and can guarantee cleaning performance, improve wastewater recycle rate according to the saltiness of the accurate Control Circulation reuse water of plating piece cleaning requirement.Since moisturizing opportunity accurately, can also effectively reduce the make up water consumption.Facts have proved, compare that make up water water consumption of the present invention drops to 360 liters/hour by original 1200 liters/hour, water saving 70% with existing manual observation or sampling and analyzing method.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (9)
1. WITH ON-LINE ION-EXCHANGE reclaims the control device of nickel-plating waste water, be applicable to a nickel plating waste water reclaiming system, this system comprises one first rinse tank, one second rinse tank, a water pump and at least one ion exchange column, wherein the outlet output from first rinse tank contains the rinse water of nickel ion to this water pump, after inputing to the ion exchange column filtration, water pump is fed back to this second rinse tank reuse, this system also comprises the water compensation mechanism that this second rinse tank is replenished cleaning water, it is characterized in that described control device comprises:
The pH transmitter, the water outlet of an ion exchange column located therein is to detect the pH value of this water outlet;
Conductivity sensor is located on the recycle-water pipeline that this first rinse tank is exported to second rinse tank, reclaims electrical conductivity of water to detect;
Magnetic valve is located on the described water compensation mechanism, with the moisturizing of control water compensation mechanism;
Control unit, be connected with magnetic valve with described pH value transmitter, conductivity sensor, this control unit receives this pH value and specific conductivity, changes the state of judging its corresponding ion exchange column according to this pH value, and the opening and closing of controlling this magnetic valve according to this specific conductivity.
2. WITH ON-LINE ION-EXCHANGE as claimed in claim 1 reclaims the control device of nickel-plating waste water, it is characterized in that the quantity of this ion exchange column is more than two.
3. WITH ON-LINE ION-EXCHANGE as claimed in claim 2 reclaims the control device of nickel-plating waste water, it is characterized in that this pH value transmitter is located at the water outlet from first ion exchange column of this water pump side.
4. WITH ON-LINE ION-EXCHANGE as claimed in claim 2 reclaims the control device of nickel-plating waste water, it is characterized in that this pH value transmitter is located at the water outlet from second ion exchange column of this water pump side.
5. reclaim the control device of nickel-plating waste water as each described WITH ON-LINE ION-EXCHANGE of claim 1～4, it is characterized in that, this control unit has a predetermined pH interval, and when this pH value entered this predetermined pH interval and keeps a setting-up time, this control unit judged that corresponding ion exchange column lost efficacy.
6. WITH ON-LINE ION-EXCHANGE as claimed in claim 5 reclaims the control device of nickel-plating waste water, it is characterized in that, and when ion exchange column lost efficacy, this control unit signal that gives the alarm.
7. WITH ON-LINE ION-EXCHANGE as claimed in claim 5 reclaims the control device of nickel-plating waste water, and this predetermined pH interval is 4～7.
8. WITH ON-LINE ION-EXCHANGE as claimed in claim 1 reclaims the control device of nickel-plating waste water, it is characterized in that this conductivity sensor is located at the water outlet place of this water pump.
9. WITH ON-LINE ION-EXCHANGE as claimed in claim 1 reclaims the control device of nickel-plating waste water, it is characterized in that, this control unit has a specific conductivity reference mark, when described specific conductivity surpasses this specific conductivity reference mark, this control unit is controlled this magnetic valve and is opened, and makes this water compensation mechanism to this second rinse tank moisturizing; When described specific conductivity was lower than this specific conductivity reference mark, this control unit was controlled this closed electromagnetic valve, and this water compensation mechanism is stopped this second rinse tank moisturizing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200710046107 CN101187054A (en) | 2007-09-18 | 2007-09-18 | On-line ion exchange and recovery nickel-plating waste water control device |
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| CN 200710046107 CN101187054A (en) | 2007-09-18 | 2007-09-18 | On-line ion exchange and recovery nickel-plating waste water control device |
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| CN101187054A true CN101187054A (en) | 2008-05-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411381A (en) * | 2009-06-10 | 2012-04-11 | 上海轻工业研究所有限公司 | Water saving control device |
| CN104192946A (en) * | 2014-08-12 | 2014-12-10 | 江西瑞林电气自动化有限公司 | Amine liquid purification control method and device |
| CN105116102A (en) * | 2015-06-17 | 2015-12-02 | 安徽淮化股份有限公司 | Multifunctional on-line analysis and recovery apparatus for urea ammonium nitrate solution |
| CN106255665A (en) * | 2014-03-06 | 2016-12-21 | 德克萨斯大学系统董事会 | For the method and apparatus measuring fluid conductivity |
| CN106350837A (en) * | 2016-10-26 | 2017-01-25 | 福建新力元反光材料有限公司 | Nickel aminosulfonate electroforming process for production of microprism type light reflection mold |
-
2007
- 2007-09-18 CN CN 200710046107 patent/CN101187054A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102411381A (en) * | 2009-06-10 | 2012-04-11 | 上海轻工业研究所有限公司 | Water saving control device |
| CN102411381B (en) * | 2009-06-10 | 2014-02-12 | 上海轻工业研究所有限公司 | Water saving control device |
| CN106255665A (en) * | 2014-03-06 | 2016-12-21 | 德克萨斯大学系统董事会 | For the method and apparatus measuring fluid conductivity |
| CN106255665B (en) * | 2014-03-06 | 2019-07-19 | 德克萨斯大学系统董事会 | Method and apparatus for measuring fluid conductivity |
| CN104192946A (en) * | 2014-08-12 | 2014-12-10 | 江西瑞林电气自动化有限公司 | Amine liquid purification control method and device |
| CN105116102A (en) * | 2015-06-17 | 2015-12-02 | 安徽淮化股份有限公司 | Multifunctional on-line analysis and recovery apparatus for urea ammonium nitrate solution |
| CN106350837A (en) * | 2016-10-26 | 2017-01-25 | 福建新力元反光材料有限公司 | Nickel aminosulfonate electroforming process for production of microprism type light reflection mold |
| CN106350837B (en) * | 2016-10-26 | 2018-08-07 | 福建新力元反光材料有限公司 | A kind of nickel sulfamic acid electroforming process for the production of microprism reflecting film mold |
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Open date: 20080528 |