An air flotation machine for down production wastewater treatment

Abstract

The invention relates to the field of sewage treatment equipment, in particular to an air flotation machine for the treatment of down production wastewater. Including the air flotation treatment box, the lower end of the air flotation treatment box is fixed with a liquid inlet tank connected to it, the liquid inlet box is equipped with a solid matter extrusion discharge device, the air flotation treatment box is equipped with an aeration device, the right side of the aeration device The air flotation treatment box is provided with a static cavity, and a toggle device is arranged in the static cavity, and a float fishing device is arranged in the air flotation treatment box on the right side of the static cavity. The present invention can pre-filter the sewage in the liquid inlet tank, filter the large-grained sediments in the sewage, and the filtered large-grained sediments can be squeezed and discharged, which is convenient for collecting and concentrating the large-grained sediments For treatment, the sewage is filtered and then flows through the gap between the fixed plates, so that the contact area between the gas discharged from the vent hole and the sewage can be increased.

Description

technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to an air flotation machine for the treatment of down production wastewater. Background technique [0002] Down production will generate a lot of waste water. In order to improve the water utilization rate and meet the requirements of environmental protection discharge, the sewage needs to be treated. The water pollution treatment equipment mainly includes centrifuges, aerators, sludge dehydrators and air flotation machines. Machines, etc., in which the air flotation machine is a dissolved air system that generates a large number of fine bubbles in the water, so that the air attaches to the suspended particles in the form of highly dispersed tiny bubbles, resulting in a state of density lower than that of water, and uses the principle of buoyancy to make it float on the water surface , so as to achieve solid-liquid separation of water treatment equipment, air flotation mach...

AI Technical Summary

Problems solved by technology

[0003] The working principle of the air flotation machine is to absorb the impurities in the sewage to the surface of the air bubbles through tiny air bubbles, and use the buoyancy of the bubbles to discharge the impurities out of the air flotation tank. Thoroughly, the impurities cannot be completely floated, and precipitation is easy to form, and the collection of floating impurities is also troublesome

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