A sewage sedimentation tank with inner and outer nested bellows groups and its operation method

Abstract

Provided is a sewage sedimentation pond and an operating method thereof. A group of corrugated pipes which are nested in an inside-outside mode is utilized to cut a pond body into a series of very long shallow pond sedimentation layers making raw water sediment in the sedimentation pond; meanwhile a Bernoulli effect of a fluid is utilized to produce stable vortexes in rear grooves of convex ribs of wavy corrugated structures, the entrainment effect of the vortexes make non-fluid substances in the raw water gathered in vortex cores and perform constant contact, bump and adhesion, flocculation reaction occurs, and finally the substances perform large-mass particle sedimentation. The purposes of removing suspended substances in the raw water and cleaning a water body are achieved. A driving device drives a cylinder to rotate at low linear speed, sediments are urged to slide and move down along the wall of the cylinder and fall into the bottom of the pond, and accordingly no adhesion, accumulation or blockage phenomenon is produced in the cylinder. During maintenance, a powerful turbulence shear flow is formed by rapidly turning a rotary shaft and meanwhile using a pull fork mechanism to pull the cylinder for axial left-right motions, namely a high-speed scouring effect is played on the cylinder, and possible sedimentation or blockage is very convenient to eliminate.

Description

technical field [0001] The invention relates to a sewage sedimentation tank with inner and outer nested bellows groups capable of accelerating the sedimentation process in sewage treatment, clarifying water bodies and improving the sewage treatment effect, and an operation method thereof, belonging to the field of sewage treatment. Background technique [0002] In recent years, with the rapid development of my country's economy, the discharge of urban sewage has continued to increase, and the urban water environment has been seriously polluted. The sewage problem has become a serious environmental and economic problem in China. Due to the high cost of sewage treatment and unsustainable financial investment, the rate of sewage treatment in my country is very low. The cost and efficiency of sewage treatment have greatly restricted the development of sewage treatment industry. Therefore, researching and developing low-cost, fast-speed and high-efficiency new sewage treatment pr...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the defects that the traditional inclined tube sedimentation tank is not strong in adapting to water impact load and water temperature change and the traditional inclined plate (pipe) is prone to sludge adhesion and blockage, which affects the sedimentation effect, the present invention utilizes the fluid movement characteristics and integrates the shallow pool theory , The principle of dynamic coagulation and the inclined plate technology have changed the static state of the traditional inclined plate (pipe):

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