Sealing cover for circular pond body of synchronous-rotation reverse hanging membrane structure

Abstract

The invention discloses a sealing cover for a circular pond body of a synchronous-rotation reverse hanging membrane structure. The sealing cover comprises a girder and a circular track beam. The girder is in rigid connection with the circular track beam. Upward-arch truss beams are connected between the circular track beam and the girder in a spaced mode. A connecting truss beam is arranged between every two adjacent upward-arch truss beams. The girder, the circular track beam, the upward-arch truss beams and the connecting truss beams form a rigid support. A sealing membrane is fixedly arranged on the lower face of the rigid support in a reverse hanging mode. The periphery of the sealing membrane falls naturally and forms a sliding sealing face with a concrete walkway plane of the circular pond body. Bearing travelling wheels are installed on the lower edge of the circular track beam. The sealing cover is further provided with a gas collecting device for collecting gas inside the circular pond body. The gas collecting device collects gas inside the pond body in the mode of middle shaft air and peripheral air supplementation. The sealing cover is rapid to install, good in mobility, long in service life and applicable to any large-span pond body, and reduces occupation of a site.

Description

technical field [0001] The invention relates to the technical field of deodorization equipment in sewage treatment plants, in particular to a technique for synchronously rotating a circular tank body sealing cover with an anti-hanging membrane structure. Background technique [0002] In daily production activities, various forms of domestic sewage and industrial wastewater are produced every day. There are a large number of organic pollutants in these wastewaters. These sewages will produce a large amount of toxic and harmful gases during storage, transportation and biochemical treatment. Due to the large area of ​​the sewage treatment round pools used in sewage treatment plants containing mud scraping trucks, they are generally used with the open mouth, so that the toxic and harmful gases produced are naturally released, causing adverse effects on the surrounding environment. [0003] In order to eliminate the odor generated in the sewage treatment process, the tradit...

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Problems solved by technology

[0006] (2) The service life of the cover is short and the cost is high;

[0007] (3) The circular pool body occupies a large area, the sealing cover is heavy, the original foundation needs to be reinforced, and the installation and sealing costs are high;

[0008] (4) The circular tank body contains a mud scraper, and the sealing cover covers the mud scraper inside, which accelerates the corrosion of the mud scraper, resulting in a large amount of maintenance and high cost;

[0009] (5) The equipment is in the hood, and the concentration of harmful gases in the hood is high, which poses a safety hazard to maintenance personnel entering the hood

[0010] (6) The fixed sealing cover has a high sealing height and a large internal volume, resulting in a large volume of corresponding deodorizing equipment, thick pipes, and increased costs

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