A V-shaped filter using resin filter media

By designing a V-shaped filter tank structure and layered filter media, combined with an automated backwashing system, the problems of production interruption and maintenance difficulties caused by resin replacement in vertical tanks were solved, achieving efficient and continuous operation of the resin filter media and simplified maintenance.

CN224513259UActive Publication Date: 2026-07-17CHANGSHA SAINES ENVIRONMENTAL PROTECTION ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGSHA SAINES ENVIRONMENTAL PROTECTION ENG TECH CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, vertical tanks with fixed reaction beds require a complete shutdown of production when changing solid catalysts or solid reactants, resulting in interruption of production continuity, limited resin storage capacity and backwashing capacity, and difficulties in cleaning and maintenance.

Method used

It adopts a V-shaped filter structure, which includes two sets of adsorption beds, one for use and one for backup. Combined with a layered filter media layer and a backwashing system, it uses sodium hydroxide solution to soak and restore the resin performance. The filtration rate is controlled by a level gauge and an outlet water regulating valve, so as to achieve continuous operation and efficient backwashing.

Benefits of technology

It achieves continuous and stable operation of resin filter media, improves the contact efficiency between resin and waste liquid, simplifies the maintenance process, reduces operation and maintenance costs, and ensures the stability of filtration rate and the high efficiency of backwashing.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a V-shaped filter using resin filter media, comprising an external frame, an inlet, a distribution channel, a distribution weir, a V-shaped groove, a filter, an adsorption filter outlet, a backwash inlet, a sodium hydroxide dosing inlet, a drainage collection trough, and a backwash outlet. The inlet, distribution channel, distribution weir, V-shaped groove, filter, and adsorption filter outlet constitute one adsorption bed. Two adsorption beds are installed within the external frame, sharing the inlet and outlet. This utility model employs a two-bed operation mode, with one bed in use and the other on standby, effectively solving the problem of production interruption caused by resin replacement required in traditional vertical tanks, achieving continuous and stable operation. The overall structure is compact and highly automated, reducing maintenance costs due to structural defects. It fundamentally solves the problems of limited capacity, uneven backwashing, and difficult maintenance associated with traditional vertical tanks from a structural perspective.
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