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Periphery water-inlet continuous water-outlet radial settling tank

A sedimentation tank and radial flow technology, applied in the field of sedimentation tanks, can solve problems such as short circuit and poor sedimentation effect, achieve uniform water distribution, good treatment effect, and increase the effect of water outlet area

Inactive Publication Date: 2009-09-09
山西晋丰节能环保工程设计有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of sedimentation tank is easy to cause short circuit when the water inflow changes, making the sedimentation effect poor

Method used

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  • Periphery water-inlet continuous water-outlet radial settling tank
  • Periphery water-inlet continuous water-outlet radial settling tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: Sewage treatment secondary sedimentation tank

[0013] It is used for the secondary sedimentation tank after biochemical treatment in the urban secondary sewage treatment plant. Referring to the attached figure, during use, the effluent of the biological treatment unit enters the surrounding water inlet distribution tank (2) from the water inlet pipe (1), and passes through the surrounding water inlet The multiple water distribution holes provided at the bottom of the water distribution tank (2) enter the sedimentation tank. Under the action of the water distribution holes, the influent water can be effectively and evenly dispersed, and the water flow speed is reduced. Sewage enters the lower part of the sedimentation tank and then flows to the central sedimentation area. After sedimentation, the clean water overflows into the cross-shaped continuous water outlet tank (3). The continuous water outlet tank (3) is equipped with an adjustment baffle (6) to adjust...

Embodiment 2

[0014] Example 2: Concentration of desulfurization slurry mixture

[0015] The sedimentation tank used for the concentration of slurry in the calcium flue gas desulfurization process, 10-20% of the desulfurization slurry flows into the radial-flow sedimentation tank for concentration, the supernatant flows into the desulfurization system for recycling, and the 30-50% concentrated The slurry is then dehydrated. Referring to the accompanying drawings, during use, the desulfurization slurry enters the peripheral water distribution tank (2) from the water inlet pipe (1), and enters the sedimentation through multiple water distribution holes provided at the bottom of the peripheral water distribution tank (2) for the mixed slurry to flow into. Pool, under the action of water distribution holes, the slurry can be effectively and evenly dispersed, and the flow rate is reduced. Under the action of the water inlet diversion baffle, the mixed slurry enters the lower part of the sediment...

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Abstract

The invention relates to a radial flow sedimentation tank into which peripheral water flows and out of which water is drained continuously. The sedimentation tank is characterized in that: the tank body is cylindrical and the lower part is a conical sludge district; by the adoption of the way of water flowing into the tank from periphery, a plurality of water holes for supplying the water to flow into the tank are arranged on a inlet groove; the outlet adopts a cruciform outlet groove for water drainage arranged long the radial direction; outlet weirs are arranged at the two sides of the outlet groove and an adjustable baffle is arranged in the outlet groove; the rate of water flow and the outlet positions of the outlet weirs can be adjusted by regulating the length of the outlet weirs so as to adapt to the change of water flow to keep a best route for the sedimentation of particle substances to enhance the outlet water quality. The adjustable outlet groove which can drain water continuously increases the outlet area to reduce the outlet flow speed, and maintains even distribution of outlet water and the best outlet position; therefore the sedimentation load is increased, the efficiency is enhanced and the investment and floor area are reduced.

Description

technical field [0001] The invention relates to the technical field of sedimentation tanks, in particular to a radial flow sedimentation tank with peripheral water inlet and continuous water outlet. technical background [0002] The radial flow sedimentation tank is an important facility for slurry concentration. Generally, the sedimentation tank includes a water inlet channel, a sedimentation area, a sludge area and an outlet channel. The existing radial flow sedimentation tank mainly has three types according to the way of water inflow and outflow, that is, center water inlet and peripheral water outlet, peripheral water inlet center water outlet and peripheral water inlet and peripheral water outlet. Among them, radial flow sedimentation tanks with central water inlet and peripheral water outlet are widely used. Wastewater enters the tank from the central water inlet pipe of the pool, and flows along the radius direction to the periphery of the pool. The slope enters the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D21/02B01D21/24
Inventor 李鹏举张晓玲
Owner 山西晋丰节能环保工程设计有限公司
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