Automatic telescopic scraping arm for square/regular polygon settling basin

Abstract

The invention relates to an automatic telescopic scraping arm for a square / regular polygon settling basin. The automatic telescopic scraping arm comprises a fixed scraping arm part installed on a main shaft and an automatic telescopic scraping arm part installed at the arm end of the fixed scraping arm. The fixed scraping arm is composed of a main shaft (1), a main-shaft assembly (2), a scraper plate (3), a fixed scraping arm (4), a scraper plate joint bar (5), a mud-guide tank scraper plate (6) and a middle shaft (7). The automatic scraping arm is composed of an end contact first roller (11), an end contact second roller (10), an end contact third roller (9), a tension spring (11), a scraper plate anti-drag hole (13), a first automatic scraper plate (14), a second automatic scraper plate (15), a third automatic scraper plat (16), an end contact roller (17), a scraper plate anti-drag hole (18) and a linkage (19). The automatic telescopic scraping arm for the square / regular polygon settling basin can perform circular motion when driven by the main shaft, and the tops of the scraping arms stick close to the wall of the settling basin. Without extra power, sludge on the square / regular polygon settling basin can be scraped off in all directions such that the settling basin has no blind angle of sludge.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a technology for collecting and removing sludge on the bottom and wall surfaces of sedimentation tanks and clarifier tanks in urban domestic sewage and industrial wastewater treatment systems. Background technique [0002] At present, the sedimentation-clarifier mud scraper in the domestic water treatment industry is generally divided into two types, one is a bridge type mud scraper, and the bridge type mud scraper is used in a rectangular advection sedimentation tank; the other is a central rotary type Sludge scraper, central rotary mud scraper is used in the circular radial flow sedimentation tank; the circular sedimentation tank has good hydrodynamic performance, high purification efficiency, and it is convenient to scrape and clean the sludge after it settles, but it wastes land resources; the rectangular sedimentation tank The pond does not waste land, and the sewag...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an automatic telescopic scraper arm of a square and regular polygonal sedimentation tank that can be used for square, regular hexagonal and other polygonal sedimentation tanks. It does not need additional power, adopts a mechanical structure, and can be automatically scraped according to the shape of the sedimentation tank. The telescopic arm is long, so that it can scrape the sludge in all directions and without dead ends, which not only improves the problem that the traditional central rotary mud scraper cannot be applied to the rectangular pool, but also overcomes the disadvantages of the bridge type mud scraper occupying land and wasting resources

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