A layered sedimentation tank

Abstract

The invention discloses a layered sedimentation tank and provides a layered sedimentation tank which is simple in structure and capable of enabling drossing and mud scraping to be independently performed and improving the sedimentation effect. The layered sedimentation tank comprises a tank body, wherein a dross hole is formed in one end on the top of the tank body; a sludge tank is arranged at one end of the bottom of the tank body; the dross hole and the sludge tank are positioned at two ends of the tank body in a horizontal direction; the layered sedimentation tank further comprises a driving device, a drossing mechanism, a mud scraping mechanism and a layering mechanism; the driving device comprises a driving motor, a belt pulley I, a belt pulley II, a driving belt and a transmission belt; the mud scraper comprises a scraping board; the scraping board is positioned at the bottom of the tank body; the layering mechanism comprises a lifting rope and a filtering net; the filtering netis horizontally connected to the middle of the tank body by virtue of the lifting rope; the filtering net is positioned between the transmission belt and the scraping board; a slide opening used forsliding an L-shaped pull rod is formed in the filtering net. According to the layered sedimentation tank disclosed by the invention, the operations of drossing and mud scraping can be simultaneously performed and do not interfere with each other, the sewage treatment effect is improved, and the sewage treatment quality is improved.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a settling tank. Background technique [0002] During the work of the sewage treatment sedimentation tank, on the one hand, sludge will be deposited at the bottom of the tank, and on the other hand, a lot of foam and foam will be generated on the liquid surface. In the prior art, for the sludge at the bottom of the tank and the foam on the liquid surface, a running belt is used to transport several mud scrapers for treatment. The mud scrapers are fixedly connected to the running belt and are basically perpendicular to the running belt. When working, the running belt is driven to rotate from top to bottom in the sedimentation tank through the eight pulleys set at the four corners of the tank, and the sludge at the bottom of the tank is scraped to the sludge tank by using the scraper fixedly connected to the moving belt. Scrape the floating foam on the liquid surface to the slag outle...

AI Technical Summary

Problems solved by technology

[0004] The application number filed by the applicant on March 13, 2012 is 201210065220.3, and the name is "a skimming and mud scraping machine". By setting an opening and closing device, the scraper is opened during horizontal movement and runs vertically. Closed during the process; the structure is complex, and at the same time, the running belt is arranged in a ring, which makes circulation in the sedimentation tank, and it is easy to send the sediment below upwards, reducing the sedimentation effect

Images