An automatic sewage device

Abstract

The invention provides an automatic pollution discharge device. The automatic pollution discharge device comprises a device body with a hollow cavity, wherein the cavity is provided with a guide-in section, a transition section and a guide-out section which are sequentially connected; the inner diameter of the inner wall of the guide-in section, the inner diameter of the inner wall of the transition section and the inner diameter of the inner wall of the guide-out section are successively reduced; the inner wall of the guide-out section is provided with a partition which is formed integrally and a bypass air inlet which communicates with the inner wall; a guide hole and a pollution discharge hole are formed in the partition; a connecting rod penetrates in the guide hole; a first floating body is arranged at the upper end of the connecting rod; a second floating body is arranged at the lower end of the connecting rod; the first floating body can be in clearance fit with the inner wall of the transition section or in sliding fit with the inner wall of the guide-out section hermetically; the second floating body can be in sliding fit with the inner wall of the guide-out section hermetically; when the second floating body upwards moves to the lower surface of the partition, the first floating body is exactly in clearance fit with the inner wall of the transition section; and when the first floating body downwards moves to the upper surface of the partition, the second floating body exactly slides out of the inner wall of the guide-out section and is in clearance fit with the guide-out section. By the automatic pollution discharge device, deposited pollutants in a mixing cavity of an aeration machine can be discharged automatically.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to an automatic sewage discharge device. Background technique [0002] The plug-flow submersible aerator is a special equipment used to aerate and oxygenate the water body in the water treatment process. Its working principle is: the transmission shaft of the submersible motor directly drives the fully open impeller built in the diversion port to rotate at high speed, the rotating impeller generates a strong axial thrust, and a negative pressure is formed in the diversion port, so that the air and water are separated from the diversion port. The air inlets at the upper and lower ends of the mouth are sucked in; a certain proportion of air and water are mixed in the mixing chamber, and after the impeller rotates at high speed, it is stirred and sheared to form dissolved air water, which pushes the water body forward and is sprayed through the flow channel to form d...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem that the fine dirt such as sludge in the existing technology can still enter the diversion port through the slag blocking net, and gradually deposit in the mixing chamber, over time it will cause the aeration volume of the aerator to decrease or even fail to work normally. The invention provides an automatic sewage discharge device

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