Automatic sunshade device for efficient sedimentation tank

Abstract

The invention discloses an automatic sunshade device for an efficient sedimentation tank. The device is characterized in that a cloth rotating cylinder capable of freely rotating is arranged in one end of a square plate-type frame shell assembly, a support shaft is arranged at the other end of the square plate-type frame shell assembly, and a steering pulley is arranged at each of two ends of the support shaft; the two ends of the cloth rotating cylinder are in transmission connection with the two steering pulleys through two driving belts respectively; the front end of the sunshade cloth is fixedly arranged on a traction rod, the two ends of the traction rod are fixedly connected to the two driving belts respectively, and the traction rod can synchronously move along the corresponding guide rail belts along with the two driving belts; the rear end of the sunshade cloth is fixedly arranged on the cloth rotating cylinder and can be wound and contracted to the cloth rotating cylinder or unfolded outwards from the cloth rotating cylinder along with rotation of the cloth rotating cylinder; and an electric driving device is connected with the cloth rotating cylinder and can drive the cloth rotating cylinder to rotate forwards or backwards in the square plate type frame shell assembly. The automatic sunshade device can be automatically controlled to contract and unfold, daily operation convenience and safety are improved, sunlight can be well shaded, the temperature of sewage is reduced, and the problem of rapid growth of algae is solved.

Description

technical field [0001] The invention relates to the field of sunshade for sedimentation tanks of sewage treatment, in particular to an automatic sunshade device for high-efficiency sedimentation tanks of sewage treatment plants. Background technique [0002] After the first-level physical treatment and the second-level biological treatment, the urban sewage enters the third-level advanced treatment process. The third-level advanced treatment generally adopts coagulation sedimentation tanks. Among them, the high-efficiency sedimentation tanks as coagulation sedimentation tanks are widely used, and the sewage enters the high-efficiency After the sedimentation tank, the flow of water slows down, especially in summer, when the sun shines on the surface of the water body, the water temperature can reach about 25°C, and the water body contains nutrients such as nitrogen and phosphorus, which provide sufficient nutrients for the growth of algae. Under the combined action, a large n...

AI Technical Summary

Problems solved by technology

If the algae produced are not treated effectively in time, they will multiply and grow rapidly in the water, which will not only cause a bad sensory reaction, but also affect the quality of the effluent in the later stage. It is necessary to continuously flush the inclined pipe of the sedimentation tank and the effluent collection tank, increasing the sewage Difficulty in operation and management of treatment plants

[0003] At present, black woven cloth is used to cover the high-efficiency sedimentation tank, but because it cannot be automated, not only the labor intensity is high, it is not suitable for long-term use, but also in the rainy season, the rain will crush the black woven cloth, the actual application effect is poor, and it is difficult to achieve Sunshade effect; Another kind of sunshade using reinforced concrete or anti-hanging membrane is generally more than 3m above the pool surface, especially in the morning and evening, when the sun is obliquely shining, the sunshade effect is poor, and it is difficult to inhibit the growth of algae.

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