Downward flow and upward flow inclined board air floatation-precipitation solid-liquid separating device

Abstract

The invention discloses a downward flow and upward flow inclined board air floatation-precipitation solid-liquid separation device, and is used for the technical field of water treatment. The downward flow and upward flow inclined board air floatation-precipitation solid-liquid separation device comprises an air floatation-precipitation pond, wherein the air floatation-precipitation pond is divided into a water distribution region and a contact region by a partition wall; a water feeding and distributing perforated lattice wall is arranged at the bottom of the contact area; an air flotation-precipitation packing device which divides the water distribution region into a top water distribution region and a bottom water distribution region is arranged in the water distribution region; a dissolved air releaser is arranged in the contact region; the partition wall is provided with an air floatation water inlet hole, a precipitation water inlet hole and a gate plate; the air floatation-precipitation pond is provided with an air floatation water outlet collecting channel and a precipitation water outlet collecting channel which are independent from each other; a precipitation water collecting groove is formed in the water distribution region and positioned above the air floatation-precipitation packing device; and a plurality of air floatation perforated water collecting tubes are arranged in the water distribution region and positioned below the air floatation-precipitation packing device. The downward flow and upward flow inclined board air floatation-precipitation solid-liquid separation device is reasonable in structural design; an air floatation technology and a precipitation technology can be ensured to run well; and the quality of drained water is guaranteed.

Description

technical field [0001] The invention is used in the technical field of water treatment, and in particular relates to an air flotation-sedimentation solid-liquid separation device for downward and upward flow inclined plates. Background technique [0002] The Chinese patent number is 200410043895, which is an invention patent named "Air Flotation and Sedimentation Solid-Liquid Separation Device and Method". Due to the use of a lateral flow sloping plate device, the water flow presents a horizontal flow in the sloping plate device in the separation area of ​​the structure (pool). Therefore, it is impossible to transform the upward-flow inclined tube sedimentation tank into an air flotation-sedimentation tank that can operate both sedimentation and air flotation; at the same time, it cannot be used to build down-flow and upward-flow inclined plate air flotation-sedimentation tanks. The water outlet is an overflow channel shared by air flotation and sedimentation. The hydraulic ...

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Problems solved by technology

[0002] The Chinese patent number is 200410043895, an invention patent named "Air Flotation and Sedimentation Solid-Liquid Separation Device and Method". Due to the use of a lateral flow sloping plate device, the water flow presents a horizontal flow in the sloping plate device in the separation area of ​​the structure (pool). , so it is impossible to transform the upward-flowing inclined tube sedimentation tank into an air flotation-sedimentation tank that can operate both sedimentation and air flotation; at the same time, it cannot be used to build downflow and upward-flow inclined plate air flotation-sedimentation tanks

If the water flow does not flow through the air flotation-sedimentation packing device (inclined plate device), the effect of the air flotation process and the sedimentation process cannot be well realized

In addition, because there is no air flotation-sedimentation packing device (sloping plate device) at the top of the end of the air flotation water collection pipe, when the air flotation is running, most of the water flows away from here, resulting in serious short flow

In summary, the structural design of the invention patent is unreasonable, and cannot ensure the good operation of the air flotation process and the sedimentation process, and the quality of the effluent water cannot be guaranteed

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