A processing system for plate developing waste water of developing machine

Abstract

The invention relates to a treatment system for plate-washing waste water of a developing machine, which comprises a waste liquid tank, a treatment tank and a water storage tank, the waste liquid tank is connected with the waste water outlet of the developing machine, the water storage tank is connected with the flushing water inlet of the developing machine, and the waste liquid tank is arranged There is a primary filter device, a pH detector is installed in the treatment tank, a solution adding device is installed on the treatment tank, the waste liquid tank is located above the treatment tank, and a filter element is installed for lifting in the treatment tank, and the filter element is suitable for the inner wall of the treatment tank Matching, the treatment tank is provided with a lifting device for driving the filter to lift up and down, and a stirring device is arranged above the filter to follow the filter. In the present invention, the filter element is lifted and shaken in the treatment tank to reduce the amount of floc attached to the filter element, and at the same time, the stirring device further stirs and scrapes the floc above the filter element when the filter element is raised and lowered, so that the floc cannot be removed. Precipitation on the filter element effectively prevents the clogging of the filter element by flocs.

Description

technical field [0001] The invention relates to the technical field of printing industry wastewater treatment systems, in particular to a developing machine plate-processing wastewater treatment system. Background technique [0002] Development is the main process in printing plate making. The photoprinting plate from the developing tank has residual strong alkaline developer and other impurities. If it is not rinsed with water, it will remain on the printing plate, contaminate the layout, and affect the printing production efficiency. The quality of the printed matter, the main components of the printing wastewater are dyes, resins and other impurities, which are strongly alkaline, and the dyes and resins are difficult to degrade, especially the dyes, which are not only toxic, but also have high light stability and washing stability. If it is discharged directly into the water body, it will increase the chromaticity of the water body, affect the amount of incident light, ca...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the waste liquid of the above-mentioned plate processor needs to undergo multiple processes such as physical settlement and physical filtration, and there will be more flocculation after the waste liquid of the plate processor is oxidized and adjusted to pH. These flocs will not only suspend in the waste liquid, but also easily block the filter device, resulting in slow physical sedimentation and physical filtration, which cannot efficiently treat the plate flushing waste liquid, thereby affecting the efficiency of plate making

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