Hydrocyclone pretreatment type aerated grit chamber desanding system

A technology of hydrocyclone, aeration and sand settling, which is applied in special compound water treatment, biological water/sewage treatment, water/sewage multi-stage treatment, etc. It can solve the problem of loss, low separation efficiency, and influence on the settlement of sand-water separators Spiral output sand performance and other issues to achieve the effects of supplementing carbon sources, improving separation efficiency, and ensuring the safety of effluent water quality

Pending Publication Date: 2021-01-05
韩萍
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Problems solved by technology

This separation method is relatively simple, and the separation efficiency is low. Part of the organic matter is attached to the sand and lost, and due to the large amount of water and the fast flow rate, it affects the sedimentation of the sand-water separator and the performance of the spiral output sand.

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  • Hydrocyclone pretreatment type aerated grit chamber desanding system
  • Hydrocyclone pretreatment type aerated grit chamber desanding system
  • Hydrocyclone pretreatment type aerated grit chamber desanding system

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Embodiment Construction

[0011] This patent proposes a hydrocyclone sand removal pretreatment type aeration grit chamber sand removal system. In order to make the purpose, technical scheme and effect of this patent clearer and clearer, the patent will be further clarified and complete in combination with specific examples below. instruction of.

[0012] The patent of the invention is a sand-water separator after the sand-water mixture pumped by the sand-suction pump is concentrated and pretreated before the hydrocyclone sand remover participates in the discharge of the sand-suction pump in the aeration grit chamber. A new type of aerated grit chamber sand removal system for further sedimentation, sand-water separation and sand discharge.

[0013] Such as figure 1 , figure 2 , image 3 As shown, the sand discharge tank 6 described in this system is arranged parallel to the rail 12 on the top of the aerated grit chamber 10, the driving sand suction bridge 1 is erected on the top rail 12 of the pool ...

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Abstract

The invention provides a hydrocyclone pretreatment type aerated grit chamber desanding system, belonging to the technical field of sewage treatment. According to the invention, a hydrocyclone desanderis additionally arranged on a grit suction bridge of an aerated grit chamber, and a mixed solution is pre-separated under the combined action of the hydrocyclone desander by virtue of the power of asand pump; then, further precipitation, sand-water separation and sand discharge are carried out via a transformed sand-water separator; and a planar water distribution weir groove and an inclined plate precipitation device are additionally arranged in the sand-water separator, the planar water distribution weir grooves are uniformly distributed to reduce the water inlet flow speed, and the inclined plate precipitation device lengthens a water flow path to further improve the separation efficiency of the sand-water separator, so the sand content of sewage at the discharge port of the sand-water separator is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a hydrocyclone pretreatment type aeration grit chamber sand removal system. Background technique [0002] At present, the aerated grit chamber grit removal system used in the industry is widely used in the aerated grit chamber of sewage treatment plants, and the relatively large substances such as sludge and sand deposited at the bottom of the grit chamber are sucked out of the pond by a sand suction pump. . The sand-suction bridge moves back and forth along the steel rails on the surface of the grit chamber, and the sand-suction pump (submersible sewage pump) on the bridge sucks out the sand-water mixture at the bottom of the pond and raises it to a certain height, and then enters the sand discharge chamber parallel to the grit chamber. The water tank flows into the sand-water separator for sand-water separation, and the scum board on the bridge scrapes the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/10C02F101/30
CPCC02F1/38C02F1/52C02F3/12C02F9/00C02F2001/007C02F2101/10C02F2101/30C02F2305/06
Inventor 许斌韩萍王翥田傅强许泽宇
Owner 韩萍
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