A device for recovering and recycling electroplating spray cleaning liquid

A technology of spraying cleaning and rinsing liquid, applied in electrolysis process, electrolysis components, cells, etc., can solve the problem of high cost

Inactive Publication Date: 2017-01-04
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electroplating wastewater classification treatment and recycling method of this invention can effectively recycle and reuse precious metals, and can be widely used in the wastewater treatment of the electroplating industry, but the cost of this invention is high, and the wastewater reuse rate is 90%.

Method used

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  • A device for recovering and recycling electroplating spray cleaning liquid

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Embodiment Construction

[0019] Such as figure 1 As shown, a device for recycling and reusing electroplating spray cleaning liquid of the present invention includes several circulating cleaning systems 3 set up along the production line 1, and the circulating cleaning systems are cascaded in series along the production line, and the number of the circulating cleaning systems is as follows: 5-30 is excellent. The plated parts are automatically moved from left to right on the automatic production line, and the pre-treatment, electroplating, cleaning, post-treatment and other processes are completed while moving to complete the entire electroplating process. The plated piece moves from the left side to the right side of the plating tank 2 while electroplating to the right side of the plating tank, and then the electroplating is completed and the tank enters the cleaning process.

[0020] The circulating cleaning system described here includes a spray cleaning tank, a nozzle and a pump, the nozzle is fix...

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Abstract

The invention relates to an electro-plating wastewater treatment method, and in particular relates to a device for recycling electro-plating spraying cleaning liquid. The device comprises a plurality of circulating cleaning systems arranged along a production line, wherein the circulating cleaning systems are sequentially cascaded in series along the production line; each circulating cleaning system comprises a spraying cleaning tank, a spray nozzle and a pump; the spray nozzle is fixed on the spraying cleaning tank, and is connected with the pump by virtue of a pipeline; each stage of circulating cleaning systems is connected with a corresponding cleaning and rinsing liquid recycling system; the pump is connected with the cleaning and rinsing liquid recycling system. The electro-plating spraying cleaning liquid can be recycled by adopting the structure. The process is simple in device, has power equipment only including a circulating pump, is low in energy consumption, easy in equipment maintenance and management, low in running cost and less in one-time investment, can be used for recycling a plating solution brought out from a plating slot and saving a great number of rinsing water, and can be applied to enterprises having continuous electro-plating production lines.

Description

technical field [0001] The invention relates to a treatment method for electroplating wastewater, in particular to a device for recycling electroplating spray cleaning liquid. Background technique [0002] Electroplating is one of the three most heavily polluting industries in the world. The waste water produced every year is extremely toxic and difficult to carry out biochemical treatment. At present, many countries in the world are constantly developing technologies to eliminate and reduce emissions. There is an obvious gap between our country and foreign countries. In terms of water consumption, foreign countries are one-tenth of our country; in addition, our resource recycling rate is very low. [0003] There are generally four treatment methods for electroplating wastewater: physical method, chemical method, physical chemical method and biological method. Among them, membrane separation technology in physical and chemical methods has developed rapidly and is a promisi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D21/20
Inventor 周永璋何莲张阁魏无际
Owner NANJING TECH UNIV
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