Extremely simple high efficiency gas floatation machine, and gas floatation method

Abstract

The invention discloses an extremely simple high efficiency gas floatation machine. The extremely simple high efficiency gas floatation machine comprises a gas floatation pool main body, a spiral water inlet pipeline, a reflux pump, a gas inflation pipeline, and a gas dissolving pipeline; the upper end and the lower end of the gas floatation pool main body are designed to shape like a cone; the top end and the bottom end of the gas flotation pool main body are provided with a residue discharging pipeline and a water outlet pipe with adjustable height respectively; an agent adding port a and anagent adding port b are arranged on the spiral water inlet pipeline. In applications, agents and sewage are subjected to high speed eddy flow in an eddy flow water inlet pipeline, so that rapid stirring mixing full reaction is realized; the residue discharging pipeline is arranged on the top part of the upper cone-shaped end of the gas floatation pool main body, and is combined with the water outlet pipe with adjustable height, so that automatic residue discharging is realized; an outlet of the reflux pump is provided with the gas inflation pipeline and the gas dissolving pipeline, on the gasinflation pipeline, a venturi tube is used for gas suction, and gas is introduced into an inlet of the reflux pump, so that automatic gas inflation is realized. The extremely simple high efficiency gas floatation machine is capable of solving technical problems in the prior art that the amount of gas floatation machine mechanical equipment is too large, water consumption of per ton is high, and mud is easily accumulated at pool bottoms.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a minimalist and high-efficiency air flotation machine. Background technique [0002] Air flotation is an abbreviation of air flotation machine, and it can also be used as a proper noun, that is, the air flotation method in water treatment, which is to form highly dispersed micro-bubbles in water and adhere to solids or liquids with hydrophobic groups in wastewater. Particles form a water-air-particle three-phase mixed system. After the particles adhere to the air bubbles, they form flocs with an apparent density lower than water and float to the water surface, forming a scum layer that is scraped off, thereby realizing solid-liquid or liquid-liquid separation. process. [0003] As an important solid-liquid separation equipment in sewage treatment, air flotation has the characteristics of low investment, small footprint and high degree of automation. In the current air...

AI Technical Summary

Problems solved by technology

However, the price of the multi-phase dissolved air pump is expensive, and because the suction lift of the pump inlet is much lower than the outlet lift of the pump, the suction can only be realized by holding the pressure in the inlet pipeline, so the energy consumption efficiency is low

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