Telescopic covers of aeration sand settling tank and deodorization device

Abstract

The invention relates to telescopic covers of an aeration sand settling tank and a deodorization device. The invention comprises a sand removing machine axle vehicle, a movable guiding device, a telescopic cover surface layer, a fixing device and a hinged telescopic framework; a telescopic cover is arranged on each of two sides of the sand removing machine axle vehicle; when the sand removing machine axle vehicle reciprocates on the aeration sand settling tank, the two telescopic covers are driven to move on a guide rail together with the sand removing machine axle vehicle; when the telescopic cover on one side is expanded, the telescopic cover on the other side is compressed and folded; and the aeration sand settling tank is closed all the time by using the two telescopic covers. The invention provides the telescopic covers of the aeration sand settling tank which is automatically closed together with movement of a movable axle type sand removing machin and the deodorization device. The invention has the advantages of saving energy, protecting the environment, saving investment and occupied land, preventing corrosion of equipment, prolonging the service lives of the equipment and the like.

Description

technical field [0001] The invention relates to a sewage treatment plant tank body closure and odor treatment device, in particular to a foldable closure device and deodorization device pulled by a mobile bridge-type sand remover for an aeration grit chamber. Background technique [0002] At present, most of the aeration grit chambers in urban sewage treatment plants are open, and the odor is emitted into the air, causing pollution to the surrounding environment. In recent years, in order to solve the above problems, the aerated grit chambers have been sealed and covered, and the commonly used ones are mostly fixed closed structures. However, there are some problems in this method. First, the aerated grit chamber and the mobile bridge type desander are enclosed in a fixed cover as a whole. Due to the regular maintenance of the aerated grit chamber equipment, a certain maintenance space is required. The distance from the mobile bridge vehicle platform to the top of the cover...

AI Technical Summary

Problems solved by technology

However, there are some problems in this method. First, the aerated grit chamber and the mobile bridge type desander are enclosed in a fixed cover as a whole. Due to the regular maintenance of the aerated grit chamber equipment, a certain maintenance space is required. The distance from the mobile bridge platform to the top of the cover needs to be at least 2m high, and the cost of adding the cover is very high

Secondly, because the aeration grit chamber will produce a large amount of corrosive gas, if the equipment such as the mobile bridge desander is enclosed in it as a whole, it will cause great corrosion to the mobile bridge desander and the electrical system, which will seriously affect the treatment. The plant runs well and affects the service life of the equipment

Thirdly, due to the current many renovation projects for the existing sewage treatment plants, due to the limitation of current conditions, it is difficult to add a fixed cover to the aeration grit chamber

Finally, the fixed cover increases the space for deodorization, which increases the investment and energy consumption of subsequent deodorization devices, resulting in waste

Therefore, the fixed cover does not solve the contradiction between the closing device and the mobile bridge desander

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