A filter residual liquid emptying and recycling system

Abstract

The invention discloses a filter residual liquid draining and recycling system which comprises an electroplate liquid medicine tank, a filter pump and a filter, wherein the liquid outlet of the electroplate liquid medicine tank is connected to a to-be-filtered liquid inlet of the filter through a first pipeline, the filtering pump and a second pipeline in sequence, and a feed valve is arranged on the first pipeline; the liquid outlet of the filter is communicated to the liquid inlet of the electroplate liquid medicine tank through a third pipeline, and a water producing valve is arranged on the third pipeline; a residual filter liquor discharging opening is formed in the bottom of the filter, and is connected to a waste discharging opening through a waste liquor discharging pipeline, and a first blowoff valve is arranged on the waste liquor discharging pipeline; a residual electroplate liquid discharging opening is connected to a position between the water producing valve and the liquid inlet on the third pipeline through a draining reuse pipeline, and a second drain valve and an additional filtering device are both arranged on the draining reuse pipeline. Therefore, the residual electroplate liquid in the filter can be reused, the problem of electroplate liquid loss and waste in the prior art is solved, the enterprise production cost is reduced, and waste water yield is also reduced.

Description

technical field [0001] The invention relates to the technology in the field of liquid filtration treatment, in particular to a system for emptying and recycling residual liquid in a filter. Background technique [0002] During the electroplating process, it is often encountered that the process and operation control are under normal conditions, but the plated products are not satisfactory, and defective products such as burrs and pitting often occur. Practice has proved that this is directly related to the cleanliness of the plating solution. How to control the cleaning of the electroplating solution and the treatment rate of the electroplating surface, the role of the filter cannot be underestimated. Therefore, in today's rapid development of the electroplating industry, the filter equipment plays a pivotal role. [0003] However, there are still some deficiencies in the traditional electroplating solution filter. After the filter element is used for a period of time, it ca...

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Problems solved by technology

[0005] In view of this, the present invention aims at the deficiencies in the prior art, and its main purpose is to provide a system for emptying and reusing the residual liquid in the filter, which recycles the remaining electroplating solution in the filter, and solves the problems in the traditional technology. The problem of loss and waste of electroplating solution reduces the production cost of enterprises and reduces the amount of waste water produced

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