CN101845660A - Continuous electroplating zero-discharge automatic production device - Google Patents
Continuous electroplating zero-discharge automatic production device Download PDFInfo
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- CN101845660A CN101845660A CN200910096916A CN200910096916A CN101845660A CN 101845660 A CN101845660 A CN 101845660A CN 200910096916 A CN200910096916 A CN 200910096916A CN 200910096916 A CN200910096916 A CN 200910096916A CN 101845660 A CN101845660 A CN 101845660A
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- electroplating
- rinse
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Abstract
At present, the electroplating production has the defects of large consumption of rinsing water, high cost of waste water treatment and the like. The invention provides a continuous electroplating zero-discharge automatic production device, which comprises an automatic control system, an electroplating system, a rinsing system, a surge chamber system and a concentration system, wherein the electroplating system, the rinsing system, the surge chamber system and the concentration system are connected to the automatic control system through control lines, and each action treatment is also controlled and completed through the automatic control system. The concentration system adopts the unique rectification dispersion design, and can be matched with the concentration change of each rinsing tank, so the goal of zero discharge can be realized. All systems are integrated to become a sealed whole body. The device can realize the clean, tidy and efficient electroplating production.
Description
(1) technical field
The present invention relates to the continuous production suite of equipment of a kind of electroplating industry with the rinse water zero release.
(2) background technology
Rinse water in the industrial production, especially rinse water in the Electroplating Production, if not treated direct discharging, bring great harm can for physical environment and human life, therefore, in the last few years, people have launched that a large amount of research is eliminated or the toxic substance that reduces in the rinse water flows to nature, on the one hand by carrying out cyanideless electro-plating, low chromium or chromium-free deactivation reduces or thoroughly eliminate highly toxic substance use and produce, discharge with rinse water by poaching wastewater being handled on the other hand as adopting methods such as ion-exchange to reduce objectionable impurities, like this, finally can make poaching wastewater reach country and allow emission standards.Therefore, concerning electroplating enterprise, set up a cover waste water disposal facility, its research and development expense and facility investment expense are huge, and often the investment cost with electroplating assembly line is suitable.Even like this, the rinsing water yield that needs in the Electroplating Production is still very big, and each plating will produce the trade effluent of about 1000L/h, also is great waste for water resources in short supply day by day.
In order to overcome these defectives, people have carried out many improvement to the treatment process and the equipment of electroplating rinse water.U.S. Patent Publication one " electroplate liquid recovery system " (4595474), adopt syphonic effect that the liquid in the rinse bath is replenished in plating tank, to guarantee the level balance in coating bath and the rinse bath, thereby partially recycled electroplate liquid, reduce the pollution of the scavenging solution of last rinse bath discharge to greatest extent, compare with the traditional electrical depositing process, this technology has certain improvement effect aspect the rinse water discharging utilizing electroplate liquid and reduce, yet, still exist waste water many, sewage treatment equipment shortcoming such as have high input.
The China national patent of invention discloses " industrial rinse water micro-draining technology and equipment " (application number: technical publications 90106085.2), this document is outside traditional electroplate rinsing equipment, a high-order reservoir is set, be provided with heating unit in the reservoir and be used for concentrating transition liquid, make rinse water not need waste fitment to handle like this and just can reach emission standard, quantity discharged is below the 400L/h.This scheme has obviously had very big improvement, yet this scheme is not described the principle and the scheme of turning over groove, that is to say, how to obtain the transient equilibrium design between each rinse bath, and is undistinct, and also Just because of this, equipment is difficult to realize automatic operation.In addition, heating tank is set concentrates transition liquid, need expend a large amount of electric energy.The 3rd, this scheme still has certain electroplating wastewater to discharge.
(the ZL patent No.: 94100970.X) that national patent discloses a kind of " treatment process of industrial rinsed water and equipment thereof ", this technology adopts the countercurrent rinsing method, method and apparatus by additional a kind of increase water evaporates (particularly working groove and buffering storage tank), make the intermittently easier realization zero release of countercurrent rinsing and little discharging, thereby particularly also can make water evaporates realize zero release or little discharging the working groove that does not allow to heat.A distinguishing feature of this invention is to adopt the air Bubbling method to evaporate moisture content, realizes the balance between evaporated water and the amount of makeup water, thereby realizes zero release or little discharging.Yet still there is a defective in this method, exactly since the efficient of Bubbling method evaporation moisture content not high (moisture content that each rinse bath evaporates in 7 days is 25 liters, and only evaporate 3.57 liters every day, and be 14.4 liter by the electroplate liquid of taking out of in the plating tank every day.), therefore, in high-order dashpot, to adopt assisted heating device to come accelerated evaporation, could realize the transient equilibrium in when falling the groove.That is to say, in this structure, reach real zero release, must in dashpot, increase heating unit.
The rinse water that Shanghai Institute Of Technology discloses on a kind of plating automatic line do not have discharge technology and device (application number: 200410018419.6), adopt the water atomization mode hydro-peening plated item in gap, adopt the microatomization device to realize not having discharging thereof.This method has similar principle to reverse-flow rinsing process, yet, its control condition requires relatively stricter, be microatomization clean reach clean up the water yield that requires situation to spray must be consistent with the water yield that plating tank is taken out of, could realize real nothing discharging, this technology is concerning the various plated item of pattern, and the difficulty that atomization process is adjusted is higher.
(3) summary of the invention
The invention provides a kind of technology and equipment, under the situation that does not adopt the dashpot heating unit, adopt nature to disperse evaporation mode to come concentrated bleaching liquid, realize zero release.Simultaneously, by the concentration relationship between each rinse tank of balance, realize the automatization of entire equipment.
The realization of technical solution of the present invention:
Zero release automatic manufacturing device of the present invention comprises automatic control system 1, electroplating system 2, rinse-system 3, fall tank systems 4 and concentration systems 5 forms, all system integrations together, accompanying drawing 1 be a synoptic diagram, specifically feature is as follows:
(1) main device of electroplating system 2 is a plating tank, 2-10 countercurrent rinsing tank is set behind plating tank, constitute rinse-system 3, the quantity of rinse tank requires to be provided with according to different plated item with size in the rinse-system, also can control the part rinse tank (accompanying drawing 1 has shown three rinse tanks) that only adopts wherein flexibly, when the solute concentration of first rinse tank reaches a certain set(ting)value, the whole taking-up of this groove solution concentrated in concentration systems 5, be concentrated into institute when requiring concentration (the general a little higher than electroplate liquid concentration of this concentration), concentrated solution is imported plating tank, utilize tank systems 4 that the contrary workpiece motion s direction of the solution of each rinse tank is replaced one by one then, the concentration the raised area replenishes with cleaning water in last rinse tank and the plating tank.So circulation, the wire rod motion is carried out the plating liquid that enters rinse water and is all reclaimed, and realizes the zero release of rinse water.
(2) because wire rod is movement continuously, carrying out the transfer of incoming call plating liquid in each rinsing tank by the wire rod motion also is successive.And the rinse water in each rinsing tank shift against wire rod direction of motion is interrupted.This quick travel makes rinse water that fluctuation take place and rises and falls, and saves usually the used bubble agitation water flow apparatus of agitating.
(3) concentration systems 5 is kept each groove concentration and is realized dynamically balanced key device, also is the guarantee that realizes zero release.This system adopts nature to disperse concentration principle, as shown in Figure 2.Liquid pump 6 will treat that spissated liquid pumps into splitter 2, the liquid of telling from splitter is by the cowling panel 4 of 1-50 layer, and it is the aperture of 1-10mm that a large amount of diameters are arranged on the cowling panel, and liquid flow to liquid collecting Lower tank 5 after aperture disperses, liquid pump pumps into splitter with liquid again, so continuously circulation.According to the difference of electroplate liquid kind, cowling panel can be made of the stainless steel with porous or grid structure, plastics and matrix material, and can adjust angle between level and vertical direction continuously.In the process of dropping naturally of liquid, be divided into countless tiny liquid pearls through cowling panel, the liquid pearl has big surface, fully exchanges with air, and water molecules becomes steam and overflows, and liquid obtains concentrating fast in continuous working cycle.This device is placed on outdoor ventilation and fully locate sunshine, and concentrated speed is faster.For preventing that liquid from spilling outside the concentrating unit splasher 7 need be set in the cowling panel periphery.
(4) electroplating system, rinse-system, the additional control section of tank systems, concentration systems and fresh water that falls are controlled by automatic control system 1 and are finished, and the processing action of each link is by automatic control system setting and processing.So traditional opening electroplating technology scrap build based on manual operations is become closed system main to be controlled to be automatically, neat and tidy.
Change in concentration with plating tank, first rinse tank and second rinse tank is that object illustrates the principle that realizes automatic control below.
The electroplate liquid concentration of supposing plating tank is A, and volume is V
A, the initial concentration of first rinse tank and the concentration behind t after a while are respectively B
1And B
1(t), the initial concentration of second rinse tank and the concentration behind t after a while are respectively B
2And B
2(t), the volume of each rinse bath is V
B, the volume of the rinsing liquid of being taken out of from the upper level rinse tank by galvanized wire in the unit time Δ t is Vt, the change in concentration that then can release the rinse water of each rinse tank behind the experience different time is:
Change in concentration behind first rinse tank and the second rinse tank elapsed time t is:
B
1(t)＝A+(B1-A)(1-x)
n
B
2(t)＝B
2(1-x)
n+A(1-(1-x)
n)+n(B
1-A)x(1-x)
n-1
Wherein:
x＝VtΔt/V
B
n＝t/Δt
The volume of supposing the rinse tank of plating tank is 100L, the liquid volume that every day, galvanized wire was taken out of is 6L, plating tank concentration is made as 100%, initial rinse tank concentration is 0, then can release through the concentration in first rinse tank after 5,10,15 days and be respectively 26.6%, the concentration of 46.1% and 60.5%, the second rinse tank is respectively 3.18%, 11.7% and 22.7%.According to above data, can between 10-15 days, carry out one-period concentrate and adverse current is fallen groove.
According to experimental data, maximum moisture through average evaporation every day of nature shunting concentrating unit is 13L, the moisture content that evaporates in 10 days surpasses 100L, this vaporator rate is greater than the change amount of the first rinse tank concentration, therefore, can realize the concentration of first rinse tank is concentrated into 100% from 46.1-60.5% in one-period (10-15 days), this is the key guarantee that realizes zero release.
According to above change in concentration data, as long as record each plating tank concentration at a time, just can set guide groove cycle and speed easily, and the suitable plating tank of one-level in the end carries out clear water and replenishes, as long as the clear water that replenishes equals the water yield that each groove spontaneous evaporation is fallen, just can realize the transient equilibrium and the zero release of total system, thereby can realize the automatization of whole production line.
Advantage of the present invention mainly contains following:
(1) by the unique concentrating unit of dispersion naturally of design, utilizes nature sun power and wind energy, realize concentrating, need not any heating unit, save the energy;
(2) Du Te concentrating unit and countercurrent rinsing device combine, and realize zero release, need not wastewater treatment, and the equipment that reduces wastewater treatment equipment drops into expense.
(3) automatization that realizes equipment is controlled, and whole electroplating system all is enclosed in the cover automatic equipment, and is clean, clean and tidy, efficient.
(4) description of drawings
Accompanying drawing 1 is this schematic representation of apparatus.
Accompanying drawing 2 is nature diverting device synoptic diagram.Wherein, 1: the cowling panel support; 2: splitter; 3: the extract pipe; 4: cowling panel; 5: the liquid collecting Lower tank; 6: liquid pump; 7: splasher
(5) embodiment
Below by embodiment, the effect that can know from experience the concrete working condition of this equipment and obtain.
Embodiment
In the steel wire copperizing continuously is produced, adopt this equipment, establish 3 rinse tanks, the main component of electroplate liquid is: copper sulfate 200 grams per liters, sulfuric acid 80 grams per liters, other additive 1 grams per liters, all the other are water.The volume of each rinse tank is 100 cubic centimetres, behind one-period (7 days), with the whole pumps of the first groove rinsing liquid to shunting concentrating unit (after being concentrated into the electroplate liquid original concentration naturally, blowback plating tank after filtration), then with the 2nd to 1 groove, the 3rd groove falls groove to the 2nd groove, replenishes 100 cubic centimetres of fresh waters to the 3rd groove at last.So circulation, realized only small amount of supplemental fresh water, rinse water do not discharge fully, through producing 1 millimeter of diameter, copper facing thickness is the production examination of 30 microns bimetallic composite wire rod, each loop cycle, wastewater discharge is by 17.5 cubic metres of cleaning water of original consumption and discharge 17.5 cubic metres of the waste water of sulfur acid copper 6500 gram, becomes to consume 0.1 cubic metre of cleaning water, waste discharge, reclaim(ed) sulfuric acid copper 6500 grams.
Claims (6)
1. the automatic control device of a continuous electroplating comprises automatic control system, electroplating system, rinse-system, falls tank systems and concentration systems.
2. automatic control system as claimed in claim 1 is used to control the action processing of coordinating electroplating system, rinse-system, falling tank systems, concentration systems, is the control center of whole device.
3. electroplating system as claimed in claim 1, rinse-system, fall that tank systems is integrated to be enclosed in together, become one and independently electroplate module, be connected to automatic control system by control circuit.
4. concentration systems as claimed in claim 1 adopts nature to disperse evaporation mode to come concentrated bleaching liquid, and its core component is the cowling panel of 1-50 layer.
5. cowling panel as claimed in claim 4 is made for corrosion resistant metal, plastics or matrix material, and it is aperture or the grid of 1-10mm that a large amount of diameters are arranged on the cowling panel.
6. cowling panel as claimed in claim 4 can carry out angular setting continuously between level and vertical direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910096916A CN101845660A (en) | 2009-03-24 | 2009-03-24 | Continuous electroplating zero-discharge automatic production device |
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|---|---|---|---|
| CN200910096916A CN101845660A (en) | 2009-03-24 | 2009-03-24 | Continuous electroplating zero-discharge automatic production device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929903A (en) * | 2017-04-24 | 2017-07-07 | 惠安县金旺达工业设计有限公司 | The barrel plating cleaning product line that a kind of plating solution makes full use of |
| CN110387573A (en) * | 2019-07-04 | 2019-10-29 | 广州兴森快捷电路科技有限公司 | More segregation of waste devices and electroplating producing system |
| CN110965114A (en) * | 2018-09-29 | 2020-04-07 | 上海梅山钢铁股份有限公司 | Recovery device and method for tin methane sulfonate electroplating solution |
-
2009
- 2009-03-24 CN CN200910096916A patent/CN101845660A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929903A (en) * | 2017-04-24 | 2017-07-07 | 惠安县金旺达工业设计有限公司 | The barrel plating cleaning product line that a kind of plating solution makes full use of |
| CN110965114A (en) * | 2018-09-29 | 2020-04-07 | 上海梅山钢铁股份有限公司 | Recovery device and method for tin methane sulfonate electroplating solution |
| CN110965114B (en) * | 2018-09-29 | 2021-12-14 | 上海梅山钢铁股份有限公司 | Recovery device and method for tin methane sulfonate electroplating solution |
| CN110387573A (en) * | 2019-07-04 | 2019-10-29 | 广州兴森快捷电路科技有限公司 | More segregation of waste devices and electroplating producing system |
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Application publication date: 20100929 |