Sewage filtering device for water conservancy project

By using a rotating shaft system driven by a self-rotating fan blade and a magnetic coupler to drive the scraper for cleaning, combined with high-frequency vibration of the nozzle and reverse airflow sweeping, the problem of frequent shutdowns for cleaning of sewage filtration devices in water conservancy projects due to filter screen clogging has been solved, achieving automated cleaning and efficient and environmentally friendly filtration.

CN122076077APending Publication Date: 2026-05-26XIAN UNIV OF TECH
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Patent Information

Application Number
CN202610372977.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-25
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing sewage filtration devices in water conservancy projects require frequent shutdowns for cleaning after the filter screens become clogged, resulting in low cleaning efficiency, affecting project progress, and failing to effectively prevent secondary pollution.

Method used

The rotating shaft system, driven by a self-rotating fan blade, uses a magnetic coupler to drive a scraper to clean impurities from the filter plate surface. Combined with high-frequency vibration from the nozzle and reverse airflow, it achieves automated cleaning, avoids pore blockage, and ensures stable filtration efficiency.

Benefits of technology

It achieves automatic cleaning without human intervention, improves sewage filtration efficiency, reduces maintenance intensity, avoids secondary pollution, and ensures continuous operation and efficient and environmentally friendly filtration of the filtration device.

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Abstract

The invention relates to the technical field of water conservancy projects, in particular to a water conservancy project sewage filtering device which comprises a filtering tank, one side of the filtering tank is communicated with a water inlet pipe, a filtering plate is mounted in the water inlet pipe, a T-shaped cylinder is mounted at the top end of the filtering tank, and a water diversion plate is mounted on the inner wall of the filtering tank. A cleaning mechanism is arranged at the top of the filter plate and comprises a rotating shaft A rotating in the T-shaped cylinder, and fan blades sleeve the outer wall of the rotating shaft A. The push plates move along the axes of the scrapers, and the sliding blocks slide along sliding grooves in the bottom ends of the scrapers, so that the included angle between the two sets of push plates is enlarged, and the tail ends of the push plates are close to the inner wall of the filter tank; thrust is formed on impurities such as silt accumulated on the surface of the filter plate, active cleaning is achieved to avoid pore blockage, the stable sewage filtering efficiency is guaranteed, the shutdown cleaning process can be omitted without manual intervention, the operation and maintenance intensity is reduced, and the continuous operation capacity of the device is improved.
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