Automatic centralized treatment method and system for dam area construction wastewater

By designing an alternating arrangement of scraper boxes and filter screens, the resistance of the scraper device in wastewater is reduced, improving cleaning efficiency and effectiveness, and solving the problems of high scraper operating resistance and impurity leakage in existing technologies.

CN121823712BActive Publication Date: 2026-06-19HUNAN DAWEN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
View PDF -1 Cites -1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN DAWEN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2026-03-11
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, scrapers face high operating resistance and low cleaning efficiency when cleaning construction wastewater in dam areas, and there is a high risk of impurities being missed, making it difficult to achieve thorough cleaning.

Method used

Design a slag scraping device, including multiple staggered first slag scraping boxes and second slag scraping boxes. The filter plate is provided with filter holes. The solid part of the filter plate is immersed in the wastewater to scrape off impurities on the surface of the liquid. The flow area is increased and the liquid resistance is reduced by the filter screen. After abutting against the wall of the flotation tank, it moves up along the tank wall to scrape off impurities.

Benefits of technology

It improves the efficiency of impurity removal, reduces liquid resistance, reduces the risk of impurity leakage, and enhances the cleaning effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121823712B_ABST
    Figure CN121823712B_ABST
Patent Text Reader

Abstract

This invention relates to the field of wastewater treatment technology, and specifically provides an automated centralized treatment method and system for construction wastewater in dam areas. The automated centralized treatment system for construction wastewater in dam areas includes: a shell, a transmission device, and at least one scraper; an air flotation tank is disposed below the shell; the transmission device drives the scraper to rotate and move cyclically, causing the scraper to periodically immerse itself in the wastewater and scrape away impurities from the wastewater surface; the scraper includes multiple staggered first scraper boxes and multiple second scraper boxes, with filter holes provided in the water-immersed portions of the filter plates of both the first and second scraper boxes; the filter plates of the first scraper boxes protrude from the second scraper boxes away from the direction of movement, and filter screens are provided on the protruding sides of the first and second scraper boxes. This invention increases the overall flow area of ​​wastewater passing through the scraper device, thereby reducing liquid resistance and improving cleaning efficiency.
Need to check novelty before this filing date? Find Prior Art