An underwater closed pump type impeller suction aerator

Abstract

The invention belongs to the technical field of sewage aerobic treatment equipment, and relates to an underwater closed pump type impeller inspiration and aeration machine which is characterized in that a first flat plate and a second flat plate are respectively fixedly arranged on the upper end and in the middle of a bracket with a framework structure, a motor is arranged on the first flat plate through a fixing bolt, the lower end of the motor is in transmission connection with a stirring shaft through a coupling, an air inlet disc is arranged below the second flat plate through a regulating bolt, one side of the air inlet disc is communicated with an air inlet pipe in a butted manner, the air inlet pipe is arranged through a guide bracket in a penetration manner, and the guide bracket is embedded on the first flat plate and the second flat plate; a bearing is embedded at the center of the second flat plate in a penetration manner, the lower end of the stirring shaft is in transmission connection with a closed type impeller after penetrating through the air inlet disc, and a water inlet gap with adjustable size is formed between the closed type impeller and the air inlet disc. The equipment is simple in structure, reasonable in design, reliable in principle, convenient to maintain and install, adjustable in air quantity, small in noise, low in power consumption, strong in aeration capability, good in aeration effect, wide in application range, and friendly to use environment.

Description

Technical field: [0001] The invention belongs to the technical field of sewage aerobic treatment equipment, and relates to an underwater closed pump-type impeller aeration aerator, which can be applied to various medium and small sewage treatment stations, realizes oxygenation and aeration, and has a mixing and stirring effect . Background technique: [0002] The biological treatment of wastewater refers to the method of converting part of the organic matter in the wastewater into microbial cell matter and the other part into a relatively stable chemical substance (inorganic or simple organic matter) through the metabolism of microorganisms. Biological treatment methods include aerobic treatment and anaerobic treatment. Because aerobic treatment uses the biochemical effects of aerobic organisms to achieve degradation treatment under the condition of providing free oxygen, it has fast reaction speed, short time required, and hygienic reaction process. Advantages, and are widely u...

AI Technical Summary

Problems solved by technology

[0003] At present, there are many types of commonly used aeration equipment at home and abroad. According to the way of air supply in China, it is customarily divided into three categories: blast aeration and oxygenation, surface aeration and oxygenation and underwater aeration and oxygenation. The noise of blast aeration equipment Larger, easy to affect the surrounding environment, and poor adjustability; surface aeration equipment vertical shaft pump impeller surface aerator, inverted umbrella impeller surface aerator, K-type impeller surface aerator, flat impeller Surface aerators, horizontal axis brush aerators, turntable aerators, etc. During the aeration process, some sewage will produce a lot of foam, which will hinder the oxygen absorption of the liquid surface of the aeration tank and make the dissolved oxygen efficiency A sharp drop, resulting in greatly reduced treatment efficiency; underwater aeration equipment includes self-priming jet aerator, air-supplied jet aerator, self-priming spiral aerator and pump aerator, among which jet aeration Large power consumption, strong directionality, self-priming screw aerator and pump aerator motor have high sealing performance underwater and difficult maintenance; in addition, there is an improved aeration turntable and vertical flow disclosed in Chinese patent 03135082.8 Type aeration aerator, a straight blade aerator disclosed in Chinese patent 200510055350.9, an aerator disclosed in Chinese patent 2010102087232, a diving propulsion aerator disclosed in Chinese patent 201410227178.X, and Chinese patent 2014102271065 Disclosed is an underwater stirring aerator, etc. All kinds of aerators disclosed in the above-mentioned technologies have complex structures, are difficult to install and maintain, or have poor oxygenation effects, are prone to sedimentation and blockage, or have high power consumption and loud noise. It can't realize cycle oxygenation very well. Therefore, research and design a new type of underwater closed pump impeller suction aerator to meet different aeration needs, which has good application prospects and practical value.

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