Enclosed self-circulation alkaline etching solution cyclic regeneration system

Abstract

The invention discloses an enclosed self-circulation alkaline etching solution cyclic regeneration system. The system comprises an etching line (1), a transfer mother liquor pot (2), a mother liquor pot (3), a copper ion nondestructive separation system (4), a regenerated sub-liquid pot (5), a liquid blending pot (6), a filter (7) and a sub-liquid pot (8) and the above units are orderly connected. The copper ion nondestructive separation system is connected to a copper extraction device (9). The etching line (1), the transfer mother liquor pot, the mother liquor pot, the copper ion nondestructive separation system (4), the regenerated sub-liquid pot (5), the liquid blending pot (6), the filter (7), the sub-liquid pot (8) and the copper extraction device (9) are provided with detectors for detecting the corresponding parts. The detectors are connected to a controller. A short message module for transmitting abnormal information to a corresponding responsible person is arranged in the controller. The system has the advantages of high agent reuse rate and high safety performances and realizes etching solution enclosed self-circulation and parallel nondestructive separation.

Description

technical field [0001] The invention relates to a waste liquid purification cycle regeneration system, in particular to a closed self-circulating alkaline etching liquid cycle regeneration system. Background technique [0002] With the recovery of the electronics industry, the development of China's circuit board industry has also generally rebounded. According to the "2009-2012 China Printed Circuit Board Industry Development and Prospect Forecast Analysis Report", China will become the world's largest PCB industry base in recent years. It currently accounts for about 30% of the global market. At the same time, Suining, Sichuan is currently the "Southwest Circuit Board (PCB) Industry Manufacturing Base" approved by the state. With the presence of PCB industry giants such as Positronics and Foxconn Electronics in Sichuan and Chongqing, and the relocation of a large number of circuit board factories along the coast, the PCB industry will continue to grow. Usher in a huge bus...

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Problems solved by technology

[0004] Nowadays, the amount of etching waste liquid discharged by the PCB industry is increasing rapidly every year, which makes the requirements for etching liquid recycling equipment higher and higher. Generally speaking, most of the current etching liquid recycling equipment has low efficiency, The cost is high, the floor area is large, and there are problems such as the discharge of three wastes. In order to ensure the production capacity and greatly improve the utilization rate of the equipment, the etching process is usually carried out 24 hours a day, so that the continuity of the etching solution recycling equipment, Safety, equipment maintenance timeliness, overhaul timeliness put forward higher requirements

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