CN203728679U - Heavy metal zero discharge system for electroplating rinse water - Google Patents
Heavy metal zero discharge system for electroplating rinse water Download PDFInfo
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- CN203728679U CN203728679U CN201420087234.XU CN201420087234U CN203728679U CN 203728679 U CN203728679 U CN 203728679U CN 201420087234 U CN201420087234 U CN 201420087234U CN 203728679 U CN203728679 U CN 203728679U
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- rinse water
- heavy metal
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- water
- ultrafiltration
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 244
- 229910001868 water Inorganic materials 0.000 title claims abstract description 233
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 49
- 238000009713 electroplating Methods 0.000 title claims abstract description 27
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 73
- 238000001704 evaporation Methods 0.000 claims abstract description 30
- 230000008020 evaporation Effects 0.000 claims abstract description 25
- 238000005342 ion exchange Methods 0.000 claims abstract description 21
- 230000001954 sterilising effect Effects 0.000 claims abstract description 20
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 19
- 239000010865 sewage Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 6
- 238000007747 plating Methods 0.000 claims description 63
- 238000003860 storage Methods 0.000 claims description 49
- 238000002203 pretreatment Methods 0.000 claims description 43
- 239000006200 vaporizer Substances 0.000 claims description 43
- 238000007701 flash-distillation Methods 0.000 claims description 39
- 239000008367 deionised water Substances 0.000 claims description 11
- 229910021641 deionized water Inorganic materials 0.000 claims description 11
- 230000003472 neutralizing effect Effects 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 238000004458 analytical method Methods 0.000 claims description 7
- 238000009298 carbon filtering Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 74
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 40
- 239000011651 chromium Substances 0.000 description 40
- 229910052804 chromium Inorganic materials 0.000 description 40
- 229910052759 nickel Inorganic materials 0.000 description 37
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of wastewater recovery, and discloses a heavy metal zero discharge system for electroplating rinse water. The system comprises a preliminary rinse water treatment system, a second rinse water treatment system and/or a third rinse water treatment system which are arranged in parallel, wherein the preliminary rinse water treatment system is used for discharging an evaporated concentrated liquid to a sewage treatment station and discharging flashing water produced in the evaporation process and ultrafiltration water produced during filtration into a collecting device after rinsing, neutralization, filtration and evaporation of pretreated rinse water; and the second rinse water treatment system and/or the third rinse water treatment system are/is used for recovering respective evaporated concentrated liquids, discharging the flashing water produced in the evaporation process into the collecting device, performing ion exchange and ultraviolet sterilization in a concentrated manner and uniformly recycling solutions subjected to ion exchange and ultraviolet sterilization after rinsing and evaporating of respective rinse water. The system can increase the utilization rate of an electroplating liquid, reduce discharge of electroplating rinse water and reduce the treatment cost.
Description
Technical field
The utility model relates to waste water reclamation technical field, particularly relates to a kind of electroplating rinse water heavy metal Zero discharging system.
Background technology
Electroplating assembly line is before electroplating, first need the cleaning of carrying out plating piece to carry out the pre-treating technology of plating piece, after the surface cleaning of plating piece is clean, sometimes need plating piece to carry out centre electroplating processes, the last metal that just plates outside surface, for example before chromium plating, need first nickel plating, ability chromium plating after nickel plating completes; Also some electroplating technology, after pre-treatment, can directly plate required metal at workpiece surface, for example zinc-plated.
In prior art, electroplating assembly line rinse water are to be all directly discharged in sewage works and to process conventionally, but its cost with electroplate liquid raises, the water consumption of production line is large, sewage load large, sewage works takes up an area wide, the construction of sewage plant, operation and maintenance cost be high, be unfavorable for the shortcomings such as environmental protection also not occurring the effective way addressing this problem at present.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is how to improve the utilization ratio of electroplate liquid, reduces the discharge of electroplating rinse water and reduces processing costs.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of electroplating rinse water heavy metal Zero discharging system, it comprises pre-treatment rinse water treatment system, the second rinse water treatment system and/or the 3rd rinse water treatment system being set up in parallel, after rinsing, neutralization, filtration and the evaporation of described pre-treatment rinse water treatment system for pre-treatment rinse water, evaporation dope is entered to sewage works, and the ultrafiltration water of the flash distillation water producing in evaporative process and filtration generation is entered to collection device; Described the second rinse water treatment system and/or the 3rd rinse water treatment system are for after carrying out rinse water rinsing separately, evaporation, to evaporate dope reclaims separately, and the flash distillation water producing in evaporative process is entered to described collection device, and concentrate and carry out ion-exchange and ultra-violet sterilization, and the solution after ion-exchange and ultra-violet sterilization is unified to recycle.
Wherein, described pre-treatment rinse water treatment system comprises the first rinsing device, neutralizing well, ultra-filtration equipment, ultrafiltration dope storage tank and the pre-treatment vaporizer connecting in turn, the ultrafiltration dope outlet of described ultra-filtration equipment is connected with the ultrafiltration dope entrance of described ultrafiltration dope storage tank, the ultrafiltration water out of described ultra-filtration equipment is all connected with described collection device with the flash distillation water out of vaporizer with pre-treatment, and described pre-treatment is linked into sewage works with the evaporation dope outlet of vaporizer by pipeline.
Wherein, described pre-treatment rinse water treatment system also comprises acid storage tank, and described acid storage tank is connected with described neutralizing well by pipeline.
Wherein, described the second rinse water treatment system comprises the first plating tank, the second rinsing device, the second heavy metal rinse water concentration tank and the second plating vaporizer, described the second rinsing device is connected with the second heavy metal rinse water concentration tank, described the second heavy metal rinse water concentration tank and second is electroplated and is connected by pump is two-way with vaporizer, described the second heavy metal rinse water concentration tank is also connected with described the first plating tank, and described the second plating is connected with described collection device with the flash distillation water out of vaporizer.
Wherein, described the 3rd rinse water treatment system comprises the second plating tank, the 3rd rinsing device, triple-heavy metal rinse water concentration tank and the 3rd plating vaporizer, described the 3rd rinsing device is connected with triple-heavy metal rinse water concentration tank, described triple-heavy metal rinse water concentration tank and the 3rd is electroplated and is connected by pump is two-way with vaporizer, described triple-heavy metal rinse water concentration tank is also connected with described the second plating tank, and described the 3rd plating is connected with described collection device with the flash distillation water out of vaporizer.
Wherein, described collection device is flash distillation water ultrafiltration water storage tank.
Wherein, described the second heavy metal rinse water concentration tank is connected with the first plating tank with pipeline by pump and/or described triple-heavy metal rinse water concentration tank is connected with the second plating tank by porous ceramics purifying.
Wherein, the exit end of described flash distillation water ultrafiltration water storage tank is connected with active carbon filtering device, ion-exchange unit, deionized water storage tank and ultraviolet sterilization apparatus in turn, and finally connects rinse water retrieving arrangement.
Wherein, in described deionized water storage tank, be provided with the conductivitimeter for detection of electrical conductivity of solution in tank.
Wherein, in described the second heavy metal rinse water concentration tank and/or triple-heavy metal rinse water concentration tank, be respectively equipped with the photovoltaic principals on-line analysis device for detection of strength of solution.
Wherein, in described ultrafiltration dope storage tank, flash distillation water ultrafiltration water storage tank, the second heavy metal rinse water concentration tank and/or triple-heavy metal rinse water concentration tank, be respectively equipped with liquidometer.
Wherein, this system also comprises PLC Controlling System, and described PLC Controlling System is for controlling the start and stop of whole system.
(3) beneficial effect
Compared with prior art, the utlity model has following advantage:
A kind of electroplating rinse water heavy metal Zero discharging system that the utility model provides, this blowdown system comprises pre-treatment rinse water treatment system, the second rinse water treatment system and/or the 3rd rinse water treatment system, after processing through the rinsing of each treatment system, concentrate and carry out ion-exchange and ultra-violet sterilization, and the solution after ion-exchange and ultra-violet sterilization is unified to recycle, having realized the trace discharge of pre-treatment rinse water and the zero release of heavy metal rinse water is without sewage discharge, free from environmental pollution, be beneficial to environmental protection, reduce the running cost of enterprise simultaneously.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of a kind of electroplating rinse water heavy metal of the utility model Zero discharging system.
In figure: 1: the first rinsing device; 2: acid storage tank; 3:PH meter; 4: liquidometer; 5: neutralizing well; 6: ultra-filtration equipment; 7: ultrafiltration dope storage tank; 8: pre-treatment vaporizer; 9: sewage works; 10: the second rinsing devices; 11: nickel rinse water concentration tank; 12: nickel plating vaporizer; 13: nickel bath; 14: the three rinsing devices; 15: chromium rinse water concentration tank; 16: chromium plating vaporizer; 17: flash distillation water ultrafiltration water storage tank; 18: porous ceramics purifying; 19: chrome-plating bath; 20: active carbon filtering device; 21: ion-exchange unit; 22: deionized water storage tank; 23: ultraviolet sterilization apparatus; 24: rinse water retrieving arrangement.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following instance is used for illustrating the utility model, but is not used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, term " first ", " second ", " the 3rd " etc. are only for describing object, and can not be interpreted as indication or hint relative importance.
The utility model provides a kind of electroplating rinse water heavy metal Zero discharging system, it comprises pre-treatment rinse water treatment system, the second rinse water treatment system and/or the 3rd rinse water treatment system being set up in parallel, after rinsing, neutralization, filtration and the evaporation of described pre-treatment rinse water treatment system for pre-treatment rinse water, evaporation dope is entered to sewage works, and the ultrafiltration water of the flash distillation water producing in evaporative process and filtration generation is entered to collection device; Described the second rinse water treatment system and/or the 3rd rinse water treatment system are for after carrying out rinse water rinsing separately, evaporation, to evaporate dope reclaims separately, and the flash distillation water producing in evaporative process is entered to described collection device, and concentrate and carry out ion-exchange and ultra-violet sterilization, and the solution after ion-exchange and ultra-violet sterilization is unified to recycle.
With two embodiment, the utility model is described below:
Embodiment mono-
The rinse water recovery system of chromium plating production line of take is example:
As shown in Figure 1, it comprises pre-treatment rinse water treatment system, nickel rinse water treatment system and the chromium rinse water treatment system being set up in parallel, after rinsing, neutralization, filtration and the evaporation of described pre-treatment rinse water treatment system for pre-treatment rinse water, evaporation dope is entered to sewage works 9, and the ultrafiltration water of the flash distillation water producing in evaporative process and filtration generation is entered to collection device; After described nickel rinse water treatment system and chromium rinse water treatment system are respectively used to carry out rinse water rinsing separately, evaporation, to evaporate dope reclaims respectively separately, and the flash distillation water producing in evaporative process is entered to described collection device, carry out in the lump ion-exchange and ultra-violet sterilization, and the solution after ion-exchange and ultra-violet sterilization is unified to recycle.Its zero release that has realized the trace discharge of pre-treatment rinse water and nickel, chromium rinse water is without sewage discharge, free from environmental pollution, be beneficial to environmental protection, reduces the running cost of enterprise simultaneously.
Described pre-treatment rinse water treatment system comprises the first rinsing device 1 connecting by pipeline in turn, neutralizing well 5, ultra-filtration equipment 6, ultrafiltration dope storage tank 7 and vaporizer 8 for pre-treatment, in described ultra-filtration equipment 6, be provided with ultra-filtration membrane, when pre-treatment rinse water pass through the ultra-filtration membrane in described ultra-filtration equipment 6, micromolecular pure water can form ultrafiltration water by ultra-filtration membrane, and macromolecular impurity cannot pass through ultra-filtration membrane as metal ion, assemble and form ultrafiltration dope, the ultrafiltration dope outlet of described ultra-filtration equipment 6 is connected with the ultrafiltration dope entrance of described ultrafiltration dope storage tank 7, ultrafiltration dope is entered in described ultrafiltration dope storage tank 7, the ultrafiltration water out of described ultra-filtration equipment 6 is all connected with described collection device with the flash distillation water out of vaporizer 8 with pre-treatment, described pre-treatment is linked into sewage works 9 with vaporizer 8 by pipeline.Described pre-treatment rinse water treatment system also comprises acid storage tank 2, described acid storage tank 2 is connected with described neutralizing well 5 by pipeline, be used for entering acid solution in described neutralizing well 5, to carry out the adjustment of pH value, in described neutralizing well 5, be provided with PH meter 3, so that the pH value of observing at any time solution is to reach the object of neutralization.
In order to observe at any time the strength of solution of nickel, chromium rinse water, in described nickel rinse water concentration tank 11 and chromium rinse water concentration tank 15, be respectively equipped with the photovoltaic principals on-line analysis device for detection of strength of solution.
Described nickel rinse water treatment system comprises nickel bath 13, the second rinsing device 10, nickel rinse water concentration tank 11 and vaporizer 12 for nickel plating, described the second rinsing device 10 is connected with nickel rinse water concentration tank 11, described nickel rinse water concentration tank 11 and nickel plating with vaporizer 12 by motor-mount pump or pneumatic pump and coordinate magnetic valve or pneumavalve is two-way is connected, so that the concentration that detects nickel concentrated solution at photovoltaic principals on-line analysis device is carried out circulating and evaporating while not reaching requirement, described nickel rinse water concentration tank 11 is also connected with described nickel bath 13, for the nickel concentrated solution that reaches concentration requirement being discharged into described nickel bath 13, recycle, described nickel plating is connected with described collection device with the flash distillation water out of vaporizer 12.
Described chromium rinse water treatment system comprises chrome-plating bath 19, the 3rd rinsing device 14, chromium rinse water concentration tank 15 and vaporizer 16 for chromium plating, described the 3rd rinsing device 14 is connected with chromium rinse water concentration tank 15, described chromium rinse water concentration tank 15 and chromium plating with vaporizer 16 by motor-mount pump or pneumatic pump and coordinate magnetic valve or pneumavalve is two-way is connected, so that the concentration that detects chromium concentrated solution at photovoltaic principals on-line analysis device is carried out circulating and evaporating while not reaching requirement, described chromium rinse water concentration tank 15 is also connected with described chrome-plating bath 19, for the chromium concentrated solution that reaches concentration requirement being discharged into described chrome-plating bath 19, recycle, evaporation for described chromium plating, 16 flash distillation water out is connected with described collection device.
Described collection device is flash distillation water ultrafiltration water storage tank 17, described for pre-treatment the ultrafiltration water out, nickel plating of vaporizer 8, ultra-filtration equipment 6 with vaporizer 12 and chromium plating, with vaporizer 16, all by pipeline, be connected with described flash distillation water ultrafiltration water storage tank 17, for flash distillation water and the ultrafiltration water after ultra-filtration equipment 6 filtrations that evaporative process is produced, be stored in described flash distillation water ultrafiltration water storage tank 17.
Described chromium rinse water concentration tank 15 is connected with chrome-plating bath 19 by porous ceramics purifying 18, described porous ceramics purifying 18 has antibacterial preservative activity, bacterium in water, subparticle impurity, virus etc. effectively can be removed, there is good filtration, purification effect.
The exit end of described flash distillation water ultrafiltration water storage tank 17 is connected with active carbon filtering device 20 in turn, ion-exchange unit 21, deionized water storage tank 22 and ultraviolet sterilization apparatus 23, and finally connect rinse water retrieving arrangement 24, when the liquid level of the flash distillation water in being stored in described flash distillation water ultrafiltration water storage tank 17 and the mixing solutions of ultrafiltration water reaches necessary requirement, filtration by pump extracting liquid through active carbon filtering device 20, and after the ion-exchange of ion-exchange unit 21, be stored in deionized water storage tank 22, in described deionized water storage tank 22, be provided with the conductivitimeter for detection of electrical conductivity of solution in tank, by conductivitimeter, detect the specific conductivity of solution, when specific conductivity is qualified, after the sterilization of liquid in deionized water storage tank 22 through ultraviolet sterilization apparatus 23, enter rinse water retrieving arrangement 24, when specific conductivity high to automatic alarm after certain numerical value, alert cleaning active charcoal filtration unit 20 and ion-exchange unit 21, wherein, described ion-exchange unit 21 is provided with two covers, to accomplish a preparation and a use.
In described ultrafiltration dope storage tank 7, nickel rinse water concentration tank 11, chromium rinse water concentration tank 15 and flash distillation water ultrafiltration water storage tank 17, be respectively equipped with liquidometer 4, so that check at any time the liquid level in each tank.
This system also comprises PLC Controlling System, and described PLC Controlling System can be controlled the start and stop of whole system by computer monitoring system or touch-screen, for example, control the opening and closing operation of each pump.
In addition, for the rinse water recovery method of chromium plating production line, comprise the steps, following some step can be carried out simultaneously, and nonessentially according to time order and function order, carries out:
(1) the pre-treatment rinse water of chromium plating production line are discharged in neutralizing well 5 after the rinsing through the first rinsing device 1, and from acid storage tank 2, add acid solution in described neutralizing well 5, to adjust pH value to the solution of pre-treatment rinse water, be neutral;
(2) adjust after the pH value of pre-treatment rinse water, by pump and pipeline, twitch pre-treatment rinse water in described ultra-filtration equipment 6, through after the filtration of described ultra-filtration equipment 6, the ultrafiltration dope of formation is delivered in ultrafiltration dope storage tank 7;
(3) the 4 monitoring liquid levels of the liquidometer in described ultrafiltration dope storage tank 7, when liquid level reaches behind the high liquid level position of setting, PLC controls pre-treatment and starts working with vaporizer 8;
(4) the flash distillation water being evaporated with vaporizer 8 by pre-treatment and after ultra-filtration equipment 6 filters the ultrafiltration water of relative clean be stored in flash distillation water ultrafiltration water storage tank 17, described pre-treatment is discharged into sewage works 9 with the evaporation dope of the pettiness amount of vaporizer 8;
(5) after the rinsing of the nickeliferous rinse water of chromium plating production line through the second rinsing device 10, be discharged in nickel rinse water concentration tank 11, liquidometer 4 monitoring liquid levels in described nickel rinse water concentration tank 11, liquid level in nickel rinse water concentration tank 11 reaches behind the high liquid level position of setting, and PLC controls nickel plating and starts working with vaporizer 12;
(6) the flash distillation water being evaporated with vaporizer 12 by nickel plating is stored in flash distillation water ultrafiltration water storage tank 17, and nickel plating turns back in nickel rinse water concentration tank 11 with the evaporation dope in vaporizer 12, always circulating and evaporating;
(7) through after a period of time, nickel rinsing evaporation of water dope detects and reaches after desired concn through photovoltaic principals on-line analysis device, and nickel plating quits work with vaporizer 12;
(8) the evaporation dope of nickel rinse water concentration tank 11 is used motor-mount pump or pneumatic pump and pipeline to add reuse in nickel bath 13 to;
(9) chromium plating production line is discharged in chromium rinse water concentration tank 15 after the rinsing through the 3rd rinsing device 14 containing chromium rinse water, liquidometer 4 monitoring liquid levels wherein, liquid level in chromium rinse water concentration tank 15 reaches behind the high liquid level position of setting, and PLC controls chromium plating and starts working with vaporizer 16;
(10) the flash distillation water being evaporated with vaporizer 16 by chromium plating is stored in flash distillation water ultrafiltration water storage tank 17, and chromium plating turns back in chromium rinse water concentration tank 15 with the evaporation dope in vaporizer 16, always circulating and evaporating;
(11) through after a period of time, chromium rinsing evaporation of water dope detects and reaches after set concentration through photovoltaic principals on-line analysis device, and chromium plating quits work with vaporizer 16;
(12) the evaporation dope of chromium rinse water concentration tank 15 is used motor-mount pump or pneumatic pump and pipeline to add reuse in chrome-plating bath 19 to after porous ceramics purifying 18 purifies;
(13) when flash distillation water ultrafiltration water storage tank 17 as required or arrive after certain liquid, by motor-mount pump or pneumatic pump and Pipeline transport and after active carbon filtering device 20 and ion exchange unit purify, become high-quality rinse water, be stored in deionized water storage tank 22;
(14) rinse water in described deionized water storage tank 22 adopt motor-mount pump or pneumatic pump and pipeline after ultraviolet sterilization apparatus 23 sterilizations, to enter 24 recovery of rinse water retrieving arrangement.
Embodiment bis-
The rinse water recovery system of galvanization production line of take is example:
The difference of the present embodiment and embodiment mono-is only: the rinse water recovery system of galvanization production line only comprises pre-treatment rinse water treatment system and zinc rinse water treatment system, rinse water treatment system in the middle of not needing, owing to also needing first nickel plating before chromium plating, therefore zinc-platedly on treatment process, than chromium plating, omitted an art breading step.
The utility model is mainly used in the higher heavy metal platings of hazardness such as chromium plating, cadmium plating, zinc-plated, cyanide electroplating.
The utility model has realized the trace discharge of pre-treatment rinse water and the zero release of heavy metal rinse water is without sewage discharge, free from environmental pollution, be beneficial to environmental protection, reduces the running cost of enterprise simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. an electroplating rinse water heavy metal Zero discharging system, it is characterized in that, it comprises pre-treatment rinse water treatment system, the second rinse water treatment system and/or the 3rd rinse water treatment system being set up in parallel, after rinsing, neutralization, filtration and the evaporation of described pre-treatment rinse water treatment system for pre-treatment rinse water, evaporation dope is entered to sewage works, and the ultrafiltration water of the flash distillation water producing in evaporative process and filtration generation is entered to collection device; Described the second rinse water treatment system and/or the 3rd rinse water treatment system are for after carrying out rinse water rinsing separately, evaporation, to evaporate dope reclaims separately, and the flash distillation water producing in evaporative process is entered to described collection device, and concentrate and carry out ion-exchange and ultra-violet sterilization, and the solution after ion-exchange and ultra-violet sterilization is unified to recycle.
2. electroplating rinse water heavy metal Zero discharging system as claimed in claim 1, it is characterized in that, described pre-treatment rinse water treatment system comprises the first rinsing device, neutralizing well, ultra-filtration equipment, ultrafiltration dope storage tank and the pre-treatment vaporizer connecting in turn, described pre-treatment rinse water treatment system also comprises acid storage tank, and described acid storage tank is connected with described neutralizing well by pipeline; The ultrafiltration dope outlet of described ultra-filtration equipment is connected with the ultrafiltration dope entrance of described ultrafiltration dope storage tank, the ultrafiltration water out of described ultra-filtration equipment is all connected with described collection device with the flash distillation water out of vaporizer with pre-treatment, and described pre-treatment is linked into sewage works with the evaporation dope outlet of vaporizer by pipeline.
3. electroplating rinse water heavy metal Zero discharging system as claimed in claim 1, it is characterized in that, described the second rinse water treatment system comprises the first plating tank, the second rinsing device, the second heavy metal rinse water concentration tank and the second plating vaporizer, described the second rinsing device is connected with the second heavy metal rinse water concentration tank, described the second heavy metal rinse water concentration tank and second is electroplated and is connected by pump is two-way with vaporizer, described the second heavy metal rinse water concentration tank is also connected with described the first plating tank, described the second plating is connected with described collection device with the flash distillation water out of vaporizer.
4. electroplating rinse water heavy metal Zero discharging system as claimed in claim 1, it is characterized in that, described the 3rd rinse water treatment system comprises the second plating tank, the 3rd rinsing device, triple-heavy metal rinse water concentration tank and the 3rd plating vaporizer, described the 3rd rinsing device is connected with triple-heavy metal rinse water concentration tank, described triple-heavy metal rinse water concentration tank and the 3rd is electroplated and is connected by pump is two-way with vaporizer, described triple-heavy metal rinse water concentration tank is also connected with described the second plating tank, described the 3rd plating is connected with described collection device with the flash distillation water out of vaporizer.
5. the electroplating rinse water heavy metal Zero discharging system as described in claim 1-4 any one, is characterized in that, described collection device is flash distillation water ultrafiltration water storage tank.
6. electroplating rinse water heavy metal Zero discharging system as claimed in claim 5, it is characterized in that, described the second heavy metal rinse water concentration tank is connected with the first plating tank with pipeline by pump and/or described triple-heavy metal rinse water concentration tank is connected with the second plating tank by porous ceramics purifying.
7. electroplating rinse water heavy metal Zero discharging system as claimed in claim 6, it is characterized in that, the exit end of described flash distillation water ultrafiltration water storage tank is connected with active carbon filtering device, ion-exchange unit, deionized water storage tank and ultraviolet sterilization apparatus in turn, and finally connect rinse water retrieving arrangement, in described deionized water storage tank, be provided with the conductivitimeter for detection of electrical conductivity of solution in tank.
8. electroplating rinse water heavy metal Zero discharging system as claimed in claim 7, it is characterized in that, in described the second heavy metal rinse water concentration tank and/or triple-heavy metal rinse water concentration tank, be respectively equipped with the photovoltaic principals on-line analysis device for detection of strength of solution.
9. electroplating rinse water heavy metal Zero discharging system as claimed in claim 8, it is characterized in that, in described ultrafiltration dope storage tank, flash distillation water ultrafiltration water storage tank, the second heavy metal rinse water concentration tank and/or triple-heavy metal rinse water concentration tank, be respectively equipped with liquidometer.
10. electroplating rinse water heavy metal Zero discharging system as claimed in claim 1, is characterized in that, it also comprises PLC Controlling System, and described PLC Controlling System is for controlling the start and stop of whole system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420087234.XU CN203728679U (en) | 2014-02-27 | 2014-02-27 | Heavy metal zero discharge system for electroplating rinse water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087234.XU CN203728679U (en) | 2014-02-27 | 2014-02-27 | Heavy metal zero discharge system for electroplating rinse water |
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| CN203728679U true CN203728679U (en) | 2014-07-23 |
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| CN201420087234.XU Expired - Lifetime CN203728679U (en) | 2014-02-27 | 2014-02-27 | Heavy metal zero discharge system for electroplating rinse water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936215A (en) * | 2014-02-27 | 2014-07-23 | 北京天正通表面工程技术有限公司 | Heavy metal zero discharge system of electroplating rinse water, and recovery method of rinse water |
| CN105417825A (en) * | 2015-12-28 | 2016-03-23 | 河北科瑞达仪器科技股份有限公司 | Waste liquid flash evaporation treatment method |
-
2014
- 2014-02-27 CN CN201420087234.XU patent/CN203728679U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103936215A (en) * | 2014-02-27 | 2014-07-23 | 北京天正通表面工程技术有限公司 | Heavy metal zero discharge system of electroplating rinse water, and recovery method of rinse water |
| CN103936215B (en) * | 2014-02-27 | 2016-01-13 | 北京天正通表面工程技术有限公司 | The recovery method of electroplating rinse water heavy metal Zero discharging system and rinse water |
| CN105417825A (en) * | 2015-12-28 | 2016-03-23 | 河北科瑞达仪器科技股份有限公司 | Waste liquid flash evaporation treatment method |
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