A circular self-draining gravity sand filter tank

A technology of self-discharging and grit chambers, applied in the field of grit chambers, can solve the problems affecting the recharge efficiency, maintenance cost and service life of recharge facilities, so as to facilitate settlement, facilitate sedimentation, and reduce turbulent intensity Effect

Active Publication Date: 2021-07-13
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the clogging problem during the recharging process seriously affects the recharging efficiency, maintenance cost and service life of the recharging facility.

Method used

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  • A circular self-draining gravity sand filter tank
  • A circular self-draining gravity sand filter tank
  • A circular self-draining gravity sand filter tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] For the convenience of description, the direction of the water flow is the back, and the direction of the incoming water is the front.

[0038] Such as figure 1 As shown, a circular self-draining gravity grit filter tank includes an outer grit tank 1, and the outer grit tank 1 is successively divided into a diversion channel section and a centrifugal grit section along the direction of water flow. , the diversion section and the tail sedimentation section, wherein the diversion channel section and the tail sedimentation section are linear structures, the centrifugal sedimentation section and the flow regulation section are arc-shaped structures, and the tail sedimentation The tail end of the section extends to the side wall of the aqueduct section, and the aqueduct section, the centrifugal sedimentation section, the flow regulation section and the tail sedimentation section together form a closed inner layer sedimentation tank 2 .

[0039] A first overflow weir 3 is ar...

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PUM

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Abstract

The invention discloses a circular self-discharging type gravity sedimentation filter tank, and relates to a sedimentation tank. Including the outer sedimentation tank, the outer sedimentation tank includes a water diversion channel section, a centrifugal sedimentation section, a flow regulation section and a tail sedimentation section, and the water diversion channel section, the centrifugal sedimentation section, and the flow regulation section Together with the sand settling section at the tail, a closed inner layer settling tank is formed. A first overflow weir is set between the tail sedimentation section and the inner layer sedimentation tank. A second overflow weir is arranged on the inner side of the diversion channel section, the centrifugal sedimentation section and the flow regulation section, and the second overflow weir and the inner side wall of the outer layer sedimentation tank jointly form a clear water area. The concave bank of the centrifugal sand settling section is provided with a sand discharge gallery, the bottom of the inner sedimentation tank is provided with a third sand inlet hole, and the lower end of the clear water tank is provided with a drainage pipe. The sand settling filter tank can not only effectively remove the transported particles and suspended particles in the water in the channel, but also realize automatic sand discharge through its own device.

Description

technical field [0001] The invention relates to a sand settling tank, in particular to a circular self-discharging gravity sand settling filter tank with the function of removing transported particles and suspended matter particles in the canal water. Background technique [0002] In water-scarce areas with uneven rainfall, the shortage of water resources seriously restricts the life and economic development of local people. In order to solve this problem, in addition to strengthening people's water-saving awareness and restricting groundwater exploitation, a more active and proactive approach It is the artificial recharging of groundwater resources. [0003] At present, in the lower reaches of the Yellow River, in order to actively cope with the shortage of water resources and make full use of rain and flood resources, people often recharge the collected rain and flood water and the cited Yellow River water through recharge facilities (recharge wells or recharge ponds) to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D36/04B01D21/02B01D21/24B01D21/26
CPCB01D21/02B01D21/245B01D21/26B01D36/04B01D36/045
Inventor 李旺林李玉喜霍云于海瑞
Owner UNIV OF JINAN
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