CN105645489A - New process for recycling electroplating wastewater through carrying out evaporation concentration at reduced pressure - Google Patents
New process for recycling electroplating wastewater through carrying out evaporation concentration at reduced pressure Download PDFInfo
- Publication number
- CN105645489A CN105645489A CN201511019211.0A CN201511019211A CN105645489A CN 105645489 A CN105645489 A CN 105645489A CN 201511019211 A CN201511019211 A CN 201511019211A CN 105645489 A CN105645489 A CN 105645489A
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- CN
- China
- Prior art keywords
- tank
- evaporation concentration
- pipeline
- potcher
- concentration
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Abstract
The invention discloses a new process for recycling electroplating wastewater through carrying out evaporation concentration at reduced pressure. According to the new process, electroplating waste liquid and waste water are collected in a reclaiming tank through centralized collection, the reclaiming tank is connected with an evaporation concentration device through a pipeline, a vacuum state is formed in an evaporating tube by a vacuum system, the waste water in the reclaiming tank is sucked in glass vacuum evaporation concentrating equipment for evaporation concentration, the waste water is subjected to evaporative condensing in the vacuum state so as to produce concentrate and condensed water, the interior of the evaporation concentrating equipment has the vacuum degree of 2*10<4>Pa to 8*10<4>Pa and the vapor pressure of 0.02MPa to 0.10MPa, the condensed water flows into a condensed water tank, the condensed water in the condensed water tank flows into a multistage counterflow rinsing tank for washing along a pipeline, and the concentrate flows into a concentrate tank, then, flows into a purifying tank for purification, then, enters a liquid proportioning tank for proportioning and finally flows into a plating tank. The waste water generated from an electroplating process is subjected to resource recycling, and the electroplating wastewater is subjected to innocent treatment, so that the new process plays a role in protecting environment.
Description
Technical field
The present invention relates to a kind of waste liquid circulation and utilize system, more specifically, it relates to a kind of electroplating wastewater is with concentration and recovery New Process for Treatment is evaporated under reduced pressure.
Background technology
Electroplate technology is widely used to the industries such as space flight, navigation, transportation, machine manufacture, haberdashery and hardware, household electrical appliance, light textile, inevitable waste discharge in the plating course of processing, in electroplating wastewater, harmful substance contents is high, complicated component, thus result in treatment technology difficulty relatively big, and surrounding is caused serious threat. Along with the raising day by day of mankind's environmental consciousness, electroplating wastewater is innoxious, recycling treatment is increasingly subject to concern and the attention of people. When therefore solving plating production, liquid waste processing problem seems critically important.
Summary of the invention
For the deficiency that prior art exists, it is an object of the invention to provide a kind of waste liquid circulation utilization that can will produce when electroplating and produce, by electroplating wastewater harmless treatment, and more environmentally-friendly, and the electroplating wastewater that work efficiency is higher is evaporated under reduced pressure concentration and recovery New Process for Treatment.
For achieving the above object, the technical scheme is that
A kind of electroplating wastewater is with concentration and recovery New Process for Treatment is evaporated under reduced pressure, including multi-stage countercurrent potcher, described multi-stage countercurrent potcher is connected to the accumulator tank for reclaiming high-concentration waste water by pipeline, described clear water forms waste water after product is cleaned by multi-stage countercurrent potcher, described waste water is flowed in accumulator tank along with pipeline, described accumulator tank is connected to evaporation concentration device by pipeline, pass through vacuum system, vacuum state is formed in evaporation tube, waste water in accumulator tank is entered glass evacuated evaporation concentration equipment by siphon, described waste water is flowed into by pipeline and is evaporated concentration in evaporation concentration device, formed after described waste water evaporative condenser under vacuum conditions and produce concentrated solution and condensed water, vacuum in described evaporation concentration device is 2 �� 104Pa��8��104Pa, vapour pressure is 0.02MPa-0.10MPa, described evaporation concentration device is connected to condensate draining and concentration liquid bath, described condensation flow is to condensate draining, described condensate draining is connected to multi-stage countercurrent potcher by pipeline, condensed water in described condensate draining flow in multi-stage countercurrent potcher along pipeline, described concentrated solution flow in concentration liquid bath, described thickener is connected to purification tank, described purification tank is connected to liquid pool, described concentrated solution enters into and enters back into liquid pool configuration after purifying in purification tank, concentrated solution after described configuration is good flow in coating bath.
The present invention is further arranged to: described multi-stage countercurrent potcher includes several by the low to high potcher set gradually of concentration, and described condensate draining is connected in minimum potcher.
By adopting technique scheme, clear water in multi-stage countercurrent potcher from right to left, product is rinsed by one-level one-level, clear water after repeatedly rinsing becomes waste water, being flowed in accumulator tank by pipeline, mix with the waste liquid in accumulator tank, the waste water in accumulator tank enters in evaporation concentration device again through pipeline, passing into steam under vacuum conditions and carry out efficient evaporation and concentration, the vacuum in evaporation concentration device is 2 �� 104Pa��8��104Pa, vapour pressure is 0.02MPa-0.10MPa, this program carries out under certain vacuum state, namely ensure that the stability that equipment works, reduce again the energy consumption that equipment runs simultaneously, the waste water processed through evaporation concentration device produces concentrated solution and condensed water, concentrated solution is flowed in thickener by pipeline, concentrated solution is entered into by thickener after purifying in purification tank again, enter back in liquid pool and configure, finally it is flowed in coating bath, can as the replenisher in coating bath so that stand-by, condensed water enters in condensate tank(trap) by pipeline, by condensate draining by condensed water with being pumped into multi-stage countercurrent potcher, as the supplementary water cleaning water, such system, the waste water produced in electroplating process can be carried out resource recycling, by electroplating wastewater harmless treatment, play the effect of protection environment, and this system process is simple, easy to operate, improving production efficiency.
The present invention is further arranged to: described evaporation concentration device is glass evacuated evaporation concentration device, and described evaporation concentration device includes vaporizer, cyclone separator and cooler.
By adopting technique scheme, waste liquid enters into and is evaporated concentration in vaporizer, vacuum evaporation can reduce the boiling point of solution, thus reducing the purpose of energy consumption, processed by cyclone separator again through the solution of evaporator, enter finally in cooler and cool down, the condensed water produced enters in condensate tank(trap), the condensed liquid produced enters in thickener, such workflow, can effectively carry out gas-liquid separation, both ensure efficient work efficiency, and also ensure that work quality when system works.
The present invention is further arranged to: being provided with vacuum equipment after described evaporation concentration device and condensate draining, described vacuum equipment includes vacuum pump and surge tank, and described surge tank is connected with condensate draining.
By adopting technique scheme, the waste water produced in electroplating process is carried out resource recycling, electroplating wastewater harmless treatment by the present invention, plays the effect of protection environment.
Accompanying drawing explanation
Constitute the part of this specification, the accompanying drawing for being further appreciated by the present invention illustrates the preferred embodiments of the present invention, and is used for principles of the invention is described together with description.
Fig. 1 is schematic flow sheet provided by the invention.
1, multi-stage countercurrent potcher; 2, accumulator tank; 3, evaporation concentration device; 30, vaporizer; 31, cyclone separator; 32, cooler; 4, condensate draining; 5, concentration liquid bath; 6, purification tank; 7, liquid pool; 8, coating bath; 9, vacuum equipment; 90, vacuum pump; 91, surge tank.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to Fig. 1, a kind of electroplating wastewater as shown in Figure 1 is evaporated under reduced pressure concentration and recovery New Process for Treatment, multi-stage countercurrent potcher 1, described multi-stage countercurrent potcher 1 is connected to the accumulator tank 2 for reclaiming high-concentration waste water by pipeline, described clear water forms waste water after product is cleaned by multi-stage countercurrent potcher 1, described waste water is flowed in accumulator tank 2 along with pipeline, described accumulator tank 2 is connected to evaporation concentration device 3 by pipeline, pass through vacuum system, vacuum state is formed in evaporation tube, waste water in accumulator tank 2 is sucked glass evacuated evaporation concentration device 3, described waste water is flowed into by pipeline and is evaporated concentration in evaporation concentration device 3, formed after described waste water evaporative condenser under vacuum conditions and produce concentrated solution and condensed water, vacuum in described evaporation concentration device 3 is 2 �� 104Pa��8��104Pa, vapour pressure is 0.02MPa-0.10MPa, described evaporation concentration device 3 is connected to condensate draining 4 and concentration liquid bath 5, described condensation flow is to condensate draining 4, described condensate draining 4 is connected to multi-stage countercurrent potcher 1 by pipeline, condensed water in described condensate draining 4 can flow in multi-stage countercurrent potcher 1 along pipeline, described concentrated solution flow in concentration liquid bath 5, described concentration liquid bath 5 is connected to purification tank 6, described purification tank 6 is connected to liquid pool 7, described concentrated solution enters back into liquid pool 7 after entering into the interior purification of purification tank 6 and configures, concentrated solution after described configuration is good flow in coating bath 8.
Described multi-stage countercurrent potcher 1 includes several by the low to high potcher set gradually of concentration, and described condensate draining 4 is connected in the potcher that concentration is minimum.
Clear water in multi-stage countercurrent potcher 1 from right to left, product is rinsed by one-level one-level, clear water after repeatedly rinsing becomes waste water, it is flowed in accumulator tank 2 by pipeline, waste water in accumulator tank 2 enters in evaporation concentration device 3 again through pipeline, passing into steam under vacuum conditions and carry out efficient evaporation and concentration, the vacuum in evaporation concentration device 3 is 2 �� 104Pa��8��104Pa, vapour pressure is 0.02MPa-0.10MPa, this program carries out under certain vacuum state, namely ensure that the stability that equipment works, reduce again the energy consumption that equipment runs simultaneously, the waste water processed through evaporation concentration device 3 produces concentrated solution and condensed water, concentrated solution is flowed in thickener by pipeline, concentrated solution is entered into by thickener after purifying in purification tank 6 again, enter back in liquid pool 7 and configure, finally it is flowed in coating bath 8, can as the replenisher in coating bath 8, condensed water enters in condensate tank(trap) by pipeline, by condensate tank(trap) by condensed water with being pumped in the first order potcher that multi-stage countercurrent potcher 1 concentration is minimum, can again with condensed water for the flushing to product, such system, the waste water produced in electroplating process can be carried out resource recycling, by electroplating wastewater harmless treatment, play the effect of protection environment, and this system process is simple, easy to operate, improving production efficiency.
Described evaporation concentration device 3 is glass evacuated evaporation concentration device 3, and described evaporation concentration device 3 includes vaporizer 30, cyclone separator 31 and cooler 32.
Waste liquid enters into and is evaporated concentration in vaporizer 30, vacuum evaporation can reduce the boiling point of solution, thus reducing the purpose of energy consumption, being processed by cyclone separator 31 through the solution of evaporator 30 again, enter finally in cooler 32 and cool down, the condensed water of generation enters in condensate tank(trap), the condensed liquid produced enters in thickener, such workflow, it is ensured that efficient work efficiency, also ensure that work quality when system works.
Being provided with vacuum equipment 9 after described evaporation concentration device 3 and condensate draining 4, described vacuum equipment 9 includes vacuum pump 90 and surge tank 91, and described surge tank 91 is connected with condensate draining 4.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (4)
1. an electroplating wastewater is with concentration and recovery New Process for Treatment is evaporated under reduced pressure, it is characterized in that: include multi-stage countercurrent potcher, described multi-stage countercurrent potcher is connected to the accumulator tank for reclaiming electroplating effluent by pipeline, described waste water is flowed in accumulator tank along with pipeline, described accumulator tank is connected to evaporation concentration device by pipeline, described waste water is flowed into by pipeline and is evaporated concentration in evaporation concentration device, being formed after described waste water evaporative condenser under vacuum conditions and produce concentrated solution and condensed water, the vacuum in described evaporation concentration device is 2 �� 104Pa��8��104Pa, vapour pressure is 0.02MPa-0.10MPa, described evaporation concentration device is connected to condensate draining and concentration liquid bath, described condensation flow is to condensate draining, described condensate draining is connected to multi-stage countercurrent potcher by pipeline, condensed water in described condensate draining flow in multi-stage countercurrent potcher for cleaning along pipeline, described concentrated solution flow in concentration liquid bath, described thickener is connected to purification tank, described purification tank is connected to liquid pool, described concentrated solution enters into and enters back into liquid pool configuration after purifying in purification tank, concentrated solution after described configuration is good flow in coating bath.
2. electroplating wastewater according to claim 1 is evaporated under reduced pressure concentration and recovery New Process for Treatment, it is characterised in that: described evaporation concentration device is glass evacuated evaporation concentration device, and described evaporation concentration device includes vaporizer, cyclone separator and cooler.
3. electroplating wastewater according to claim 2 is evaporated under reduced pressure concentration and recovery New Process for Treatment, it is characterized in that: described multi-stage countercurrent potcher includes several by the low to high potcher set gradually of concentration, and described condensate draining is connected in minimum potcher.
4. electroplating wastewater according to claim 3 is evaporated under reduced pressure concentration and recovery New Process for Treatment, it is characterized in that: after described evaporation concentration device and condensate draining, be provided with vacuum equipment, described vacuum equipment includes vacuum pump and surge tank, and described surge tank is connected with condensate draining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019211.0A CN105645489A (en) | 2015-12-30 | 2015-12-30 | New process for recycling electroplating wastewater through carrying out evaporation concentration at reduced pressure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511019211.0A CN105645489A (en) | 2015-12-30 | 2015-12-30 | New process for recycling electroplating wastewater through carrying out evaporation concentration at reduced pressure |
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| CN105645489A true CN105645489A (en) | 2016-06-08 |
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| CN201511019211.0A Pending CN105645489A (en) | 2015-12-30 | 2015-12-30 | New process for recycling electroplating wastewater through carrying out evaporation concentration at reduced pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690976A (en) * | 2020-07-20 | 2020-09-22 | 无锡进帆环保科技有限公司 | Electroplating bath liquid management, concentration and reuse process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575119A (en) * | 2009-05-27 | 2009-11-11 | 无锡市星亿涂装环保设备有限公司 | Method for recovering chromic acid and water from chromeplating rinse water |
| US20120211421A1 (en) * | 2010-05-14 | 2012-08-23 | Kyle Self | Systems and methods for processing co2 |
| CN102794025A (en) * | 2012-03-23 | 2012-11-28 | 恩森（台州）化学有限公司 | Concentration and recovery device for industrial electroplating wastewater |
-
2015
- 2015-12-30 CN CN201511019211.0A patent/CN105645489A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575119A (en) * | 2009-05-27 | 2009-11-11 | 无锡市星亿涂装环保设备有限公司 | Method for recovering chromic acid and water from chromeplating rinse water |
| US20120211421A1 (en) * | 2010-05-14 | 2012-08-23 | Kyle Self | Systems and methods for processing co2 |
| CN102794025A (en) * | 2012-03-23 | 2012-11-28 | 恩森（台州）化学有限公司 | Concentration and recovery device for industrial electroplating wastewater |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111690976A (en) * | 2020-07-20 | 2020-09-22 | 无锡进帆环保科技有限公司 | Electroplating bath liquid management, concentration and reuse process |
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Application publication date: 20160608 |