High-efficiency filtering device for sewage treatment

Abstract

The invention discloses a high-efficiency filtering device for sewage treatment and relates to the technical field of sewage treatment equipment. The high-efficiency filtering device mainly solves theproblem that an existing filtering device needs to be shut down at regular intervals to clean sundries. The high-efficiency filtering device comprises a box body, a filtering barrel and a filtering screen, wherein a water feeding pipe is connected to one side of the top of the filtering barrel, a plurality of filtering screens are arranged in the filtering barrel, the plurality of filtering screens are annularly arranged on an installation shaft at equal intervals, a sundry discharging opening is arranged on one side, far from the water feeding pipe, of the top of the filtering barrel, and anaerating device is arranged in the box body; the aerating device comprises a hollow shaft, a motor, a first gear, a second gear, an inner gear ring and a stirring shaft. The high-efficiency filteringdevice disclosed by the invention is provided with the filtering barrel, the installation shaft, the filtering screens and the sundry discharging opening; with the centrifugal force action, sundrieson the filtering screens can be discharged from the sundry discharging opening, the sundries are prevented from accumulating more and more, and filtering holes of the filtering screens are prevented from being blocked; thus, the filtering efficiency is improved; the aerating device is arranged to perform aeration; meanwhile, sewage is stirred continuously, so that the sewage can fully contact air,and the aerating effect is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to a high-efficiency filter device for sewage treatment. Background technique [0002] Sewage, usually refers to certain polluted discharge water from domestic and production. Sewage mainly includes domestic sewage, industrial wastewater and initial rainwater. The main pollutants of sewage are pathogenic pollutants, oxygen-consuming pollutants, plant nutrients and toxic pollutants. [0003] Sewage treatment: the process of purifying sewage to meet the water quality requirements for discharge into a certain water body or for reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., and it is also increasingly entering the daily life of ordinary people. [0004] Sewage generally contains a lot of debris, so before ...

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Problems solved by technology

[0004] Sewage generally contains a lot of debris, so before sewage treatment, it is generally necessary to filter it first, then you need to use a sewage filter device, the existing sewage filter device uses a filter to directly filter the sewage, and then As time goes by, the debris on the filter will continue to accumulate, which may block the mesh of the filter, block the water flow rate, and reduce the filtration efficiency. Therefore, the staff needs to stop and clean the filter regularly, which increases the work on the one hand. The workload of personnel, on the other hand, also affects the process and efficiency of sewage treatment

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