A filtering and impurity-removing device for printing ink waste liquid

By designing an interleaved filtration and collection system, including a filter component, a scraper bar, and a scraper bar, the problems of impurity clogging and poor flow in existing printing ink waste liquid filtration equipment are solved. This achieves a highly efficient solution to the specific problems existing in the current technology equipment, and effectively solves the problem of impurities in the waste liquid filtration equipment.

CN224404610UActive Publication Date: 2026-06-26CHENGDU SONGYU PACKAGING & PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU SONGYU PACKAGING & PRINTING CO LTD
Filing Date
2025-05-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing printing ink waste liquid filtration equipment has low filtration efficiency, impurities easily clog the filter screen, impurity collection and treatment are inconvenient, liquid flow is not smooth, the drive system is unstable, and the sealing is poor, which affects the performance and reliability of the equipment.

Method used

The system employs three sets of staggered filtration and collection components, including an inner filter, an outer filter, a side filter, and a scraper. The scraper is driven by a drive ring to remove impurities, a guide ring ensures liquid flow, the outer filter collects impurities, and the conical structure of the inner filter ring prevents clogging. Gravity backflow enables waste liquid re-filtration.

Benefits of technology

It improves filtration efficiency and impurity removal, ensures continuous and efficient operation of the filter screen, simplifies impurity cleaning, ensures smooth liquid flow, and enhances the stability and reliability of the equipment.

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    Figure CN224404610U_ABST
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Abstract

The utility model discloses a kind of filtering and impurity removing equipment of printing ink waste liquid, including filter shell, and it is installed three groups of staggered filter assembly and collection assembly by support frame. Filter assembly contains outer filter ring, inner filter ring, inner filter screen etc., and large particle impurities are filtered through inner filter screen, and impurities are cleaned by scraping rod. Collection assembly is formed by outer filter screen etc., and is used to collect impurities. Driving shaft is rotated by connecting ring, main shaft drive driving ring. Guiding ring guides waste liquid flow, and inner filter ring controls liquid flow. Sealing structure is arranged between driving shaft and infusion tube. The equipment solves the problems of low filtering efficiency, impurity blockage, inconvenience of collection and processing, poor liquid flow and poor driving sealing of traditional equipment, realizes efficient filtering and impurity removal of printing ink waste liquid, and meets the needs of environmental protection and resource recovery.
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