Aeration device for sewage treatment

Abstract

The invention discloses an aeration device for sewage treatment. The aeration device comprises a tank body, a fixed frame, an aeration disc, a water intake pipe and a water drainage pipe, wherein thetop part of the tank body is fixedly connected with the fixed frame; the upper surface of the fixed frame is fixedly connected with a motor; the shaft extending end of the motor is fixedly connected with a rotary shaft; aeration blades are hinged to the rotary shaft; the lower end of the rotary shaft is fixedly connected with a worm; an aeration rod is arranged in the tank body; a worm gear penetrates through the aeration rod; the lower end of the worm is fixedly connected with the aeration disc; the air is conveyed into the stirring rod and the aeration disc by an air blower, and is finally exhausted into the sewage. The aeration device has the advantages that the sewage at the bottom layer and the sewage at the middle layer are simultaneously aerated, the sewage at the surface layer is lifted by the aeration blades to be in full contact with the air, and the sewage at the surface layer is aerated; the aeration disc is rotated in the aeration process, the air is more uniformly exhausted into the sewage, and then the aeration effect is improved; the sewage is stirred by the stirring rod, the air bubbles are crushed, the sewage and the air bubbles are more fully mixed, and the aeration efficiency is further improved.

Description

Technical field [0001] The invention relates to the field of environmental protection equipment, in particular to an aeration device for sewage treatment. Background technique [0002] The random discharge of sewage will have a great negative impact on the environment. At present, people often use aeration tanks to treat sewage. The aeration tanks are structures that use the activated sludge method for sewage treatment. The aeration tanks are mainly composed of tank bodies and aeration tanks. The system and the water inlet and outlet are composed of three parts. The tank body is generally made of reinforced concrete, and the plane shapes are rectangular, square and round; aeration is a means to make air and water come into strong contact, and its purpose is to dissolve oxygen in the air in the water. The existing aeration The aeration device has a single aeration structure, insufficient mixing of sewage and air, and insufficient aeration, resulting in low aeration efficiency, an...

AI Technical Summary

Problems solved by technology

The pool body is generally built with reinforced concrete, and its planar shape is rectangular, square and circular; aeration is a means to make air and water come into strong contact, and its purpose is to dissolve oxygen in the air in water. The aeration structure of the aeration device is single, the mixing of sewage and air is not sufficient, and the aeration is not uniform enough, resulting in low aeration efficiency, which is difficult to meet people's growing sewage treatment needs

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