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A pcb acid etchant recycling treatment device

A technology of acid etching solution and treatment equipment, which is applied in gas treatment, metallurgical wastewater treatment, water/sewage treatment, etc., and can solve the problems of low concentration of hydrochloric acid, complicated equipment, and high cost of wastewater treatment, and achieve simple structure of the equipment and small investment in equipment , the effect of good economic value

Active Publication Date: 2017-10-17
昆山市千灯三废净化有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

The neutralization method or electrolysis method cannot realize the resource utilization of free hydrochloric acid, resulting in high cost of final wastewater disposal, while the concentration of hydrochloric acid recovered by the existing concentration method is low, and the whole device is complicated, not competitive in the market, and difficult to realize its economic benefits

Method used

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  • A pcb acid etchant recycling treatment device
  • A pcb acid etchant recycling treatment device
  • A pcb acid etchant recycling treatment device

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Experimental program
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Embodiment Construction

[0020] A PCB acid etching solution resource processing device, see figure 1 , figure 2 : it includes the displacement concentration still 1, the bottom outlet of the displacement concentration still 1 is connected to the material inlet of the crystallization still 2, the material outlet of the crystallization still 2 is communicated with the material inlet of the crystallization system suction filtration tank 3, and the filtrate outlet of the crystallization system suction filtration tank 3 is communicated with To the feed port of the replacement concentration kettle 1, the solid outlet of the crystallization system suction filtration tank 3 is connected to the crystallization system collection device, and the top gas outlet of the replacement concentration kettle 1 is connected to the gas inlet of the acid primary absorber 4, and the acid primary absorption The gas outlet of the acid absorber 4 is connected to the gas inlet of the acid secondary absorber 5, the gas outlet of...

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Abstract

The invention provides a resource-converting treatment device for a PCB (Printed Circuit Board) acidic etching solution. The resource-converting treatment device can be used for obtaining hydrochloric acid with relatively-high concentration and has a relatively good economic value; and the whole set of device is simple in structure, small in equipment investment and simple in operation. The resource-converting treatment device comprises a replacement concentrating kettle, wherein a bottom outlet of the replacement concentrating kettle is connected with a material inlet of a crystallization kettle, a material outlet of the crystallization kettle communicates with a material inlet of a crystallizing system suction-filtration tank, a filtrate outlet of the crystallizing system suction-filtration tank communicates with a material inlet of the replacement concentrating kettle, a solid outlet of the crystallizing system suction-filtration tank is connected to a crystallizing system collection device, and a top gas outlet of the replacement concentrating kettle communicates with a three-stage absorption device.

Description

technical field [0001] The invention relates to the technical field of waste liquid treatment, in particular to a recycling treatment device for PCB acid etching liquid. Background technique [0002] The production of PCB produces a large amount of acid etching solution, and the treatment methods for the acid etching solution in the prior art mainly include neutralization method, concentration method and electrolysis method. The neutralization method or the electrolysis method cannot realize the resource utilization of free hydrochloric acid, resulting in high cost of final waste water disposal. However, the concentration of hydrochloric acid recovered by the existing concentration method is low, and the whole device is complex and does not have market competitiveness, so it is difficult to achieve its economic benefits. SUMMARY OF THE INVENTION [0003] In view of the above problems, the present invention provides a PCB acid etching solution resource processing device, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/04C23F1/46B01D53/14C01G3/10C01B7/01C02F103/16
CPCB01D53/1406B01D53/1418B01D2257/2045C01B7/0712C01G3/10C02F1/045C02F2103/16C23F1/46
Inventor 庄永金梁云郑细东万永仙
Owner 昆山市千灯三废净化有限公司