High-density air flotation settling basin device

Abstract

The invention relates to a high-density air flotation settling basin device. The technical problem that air flotation and settling processes do not contact well in an existing device is mainly solved. The settling basin device comprises a coagulating basin, a stirrer is arranged in the coagulating basin, and a chemical adding system is connected to a water inlet pipeline of the coagulating basin; an outlet of the coagulating basin is connected with the bottom of a flocculation reactor, a flow lifting stirrer and a flow lifting barrel are arranged on the flocculation reactor, the lower surface of the flow lifting stirrer and a return sludge pipeline are connected with a chemical adding system, the flocculation reactor is connected with an air flotation contactor through a pipeline, a pipeline arranged in the air flotation contactor is communicated with an inclined pipe sedimentator, and a conical sediment collecting tank is arranged below the air flotation contactor and the inclined pipe sedimentator; a water outlet pipe of the inclined pipe sedimentator is connected with a rear mixing stirrer, a stirrer is arranged in the rear mixing stirrer, the rear mixing stirrer is connected with a chemical adding system, and a water outlet pipe of the rear mixing stirrer is connected with a water pipeline; a scum scraper is arranged on the upper portion of the air flotation contactor, a discharging opening of the scum scraper is connected with a scum basin through a scum discharging pipe, the scum basin is connected with a scum pump through a pipeline, and the output end of the scum pump is connected with a pipe mixer and then is connected with a sludge hopper through a pipeline to carry out discharging.

Description

technical field [0001] The invention relates to a treatment device for industrial waste water, in particular to a high-density air flotation sedimentation tank device. Background technique [0002] The existing industrial wastewater treatment sedimentation tank devices mainly include the following types: [0003] The first type: simple air flotation equipment, including air flotation reaction area, slag scraping system, dissolved air system, electric control, etc., the water to be treated enters the air flotation contact area, and the impurities in the water are floated to the water surface by dissolved air bubbles, and then , The scum scraping system hangs up the scum, and the electronic control is mostly manual. The device needs to be equipped with an additional agent flocculation device. In addition, because the water level in the air flotation contact area is relatively high, an additional water pump is required to lift the flocculated agent to the air flotation contact...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a high-density air flotation sedimentation tank device, which mainly solves the technical problem that the existing device does not have a good contact with the air flotation and the sedimentation process, and the effect is not very ideal.

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