A backwashing system and an automatic backwashing filter device
By using backwashing media with neutral and interfering properties alternately in the filtration equipment, the problem of backwashing media interfering with the working medium is solved, achieving efficient cleaning of the filter and protection of media quality.
CN119793037BActive Publication Date: 2026-05-26ANDRITZ CHINA
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ANDRITZ CHINA
- Filing Date
- 2024-12-26
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
In the prior art, backwashing media may interfere with the working medium in filtration equipment, affecting the filtration effect and media quality.
Method used
Two backwashing media of different properties (neutral and interfering media) are used to perform alternating backwashing through an automated control system. The alternating impact of gaseous and liquid media cleans the filter and, when necessary, drains the interfering media to prevent it from entering the working medium.
Benefits of technology
It effectively restores the filtration capacity of the filter, reduces the impact on the working medium, improves equipment stability and durability, reduces operational risks, and ensures media quality.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119793037B_ABST
Abstract
This application relates to a backwashing system and an automatic backwashing filter device. The backwashing system includes a first backwashing pipeline for conveying a first backwashing medium, connected to the backwashing inlet of the filter; a second backwashing pipeline for conveying a second backwashing medium, also connected to the backwashing inlet of the filter; and a controller for controlling the first and second backwashing pipelines to perform a backwashing process. The backwashing process includes at least one draining process, which involves controlling the input of the first backwashing medium into the first backwashing pipeline to drain the second backwashing medium. The first backwashing medium and the working medium are in a neutral relationship, while the second backwashing medium and the working medium are in an interfering relationship. The backwashing system of this application improves the problem of interference between the backwashing medium and the working medium in existing technologies.
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Citation Information
Patent Citations
Stainless steel precise filtering device with multi-mode backwashing structure and control method
CN112619238A
Dual-channel switching type filtering and backwashing system
CN219624292U