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Elevating defoaming aeration tank

An aeration tank and lift-type technology, applied in the field of lift-type defoaming aeration tank, can solve the problems of reducing dissolved oxygen concentration, great influence of defoaming agent, and increasing cost, etc., and achieves simple and fast operation and obvious defoaming effect , the effect of simple structure

Inactive Publication Date: 2015-08-12
SICHUAN HEDING ENVIRONMENTAL PROTECTION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of foam is relatively harmful. If some sludge is brought out, it is easy to cause a large amount of sludge return and increase the cost; the concentration of dissolved oxygen is reduced, which is not conducive to the growth of aerobic bacteria; while the conventional aeration tank solves the problem of foam The best way is to add defoamer, and for most sewage, the chemical composition inside is complex, and the chemical composition in sewage has a great influence on defoamer, so the effect of defoamer is not good. obvious

Method used

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  • Elevating defoaming aeration tank
  • Elevating defoaming aeration tank
  • Elevating defoaming aeration tank

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Such as figure 1 and figure 2 and Figure 5 As shown, the lift-type defoaming aeration tank includes an aeration tank 1. There are multiple sections or a circle of defoaming pipes 2 on the surrounding walls of the aeration tank. The water outlet hole 3 of the bubble tube, the angle between the hole axis of the water outlet hole 3 of the defoaming tube and the horizontal plane is A, and the value of A ranges from 0° to 30°.

[0021] Because in the aeration, the foam is formed in the middle of the aeration tank and continuously moves to the edge area of ​​the aeration tank, and gathers in the edge area of ​​the aeration tank, so the present invention arranges defoaming pipes on the surrounding walls of the aeration tank, The water flow is sprayed from the water outlet hole 3 of the defoaming pipe, and the water flow impacts the foam, thereby eliminating the foam. Since the general foam floats on the water surface, the height is generally below 5 cm, so the present inve...

Embodiment 2

[0028] Such as image 3 and Figure 4 As shown, on the basis of Embodiment 1, this embodiment is also provided with a lifting device, which can drive the defoaming pipe 2 to move up and down to achieve the purpose of adapting to the height of the liquid level in the aeration tank. Further, the lifting device can A common pneumatic telescopic rod is used to connect to the defoaming pipe 2, and a hydraulic telescopic rod can also be used to connect to the defoaming pipe 2. In this embodiment, a screw device is preferably used to drive, and the driving position is more accurate; preferably, the The lifting device includes a motor, the rotating output shaft of the motor 7 and the screw shaft 8, and the outer diameter surface of the screw shaft 8 is provided with a screw nut 9, and the screw nut 9 is connected with the defoaming pipe 2 through a connecting column 10. When the motor is running, the screw shaft 8 rotates, and the principle of using the rotary motion of the screw dev...

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Abstract

The invention discloses an elevating defoaming aeration tank. The aeration tank comprises an aeration pool, multiple sections of defoaming pipes or a coil of defoaming pipe are arranged along the peripheral pool wall; multiple water outlets are arranged in the defoaming pipes at an equal interval, the axis of the water outlets forms an inclined angle (A) with the horizontal plane, and A is in a range of 0 to 30 degrees. The elevating deforming aeration tank also comprises an elevating device. The elevating device comprises a motor, the rotary output shaft of the motor is connected to a screw rod shaft, the external diameter of the screw rod shaft is provided with a screw rod nut, and the screw rod nut is connected to the defoaming pipe through a connection pole. During the aeration process, foams are formed in the center of the aeration pool, move to the periphery of the aeration pool, and aggregate on the edge regions of the aeration pool; so the defoaming pipes are arranged on the peripheral wall of the aeration pool, water flows are ejected from the water outlets of the defoaming pipe, the foams are impacted and eliminated by the water flows, the water outlets can be horizontally or obliquely arranged, and the effect is better if the water outlets are obliquely arranged.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a lifting type defoaming aeration tank. Background technique [0002] The aeration tank is a sewage treatment device that passes air into the sewage tank to aerate the sewage. During the aeration treatment process, a large amount of foam is often generated. For the above foam, generally no treatment or defoaming is used agent for treatment. The main reason for foaming is the presence of some chemical components in the wastewater. These chemical components are sheared into small molecules under the strong hydraulic shear force of the low-pressure jet aeration system, and combined with fine air bubbles to form foam. The existence of foam is relatively harmful. If some sludge is brought out, it is easy to cause a large amount of sludge return and increase the cost; the concentration of dissolved oxygen is reduced, which is not conducive to the growth of aerobi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F7/00C02F3/02
CPCY02W10/10
Inventor 魏向廷王刚张仁友张仁明
Owner SICHUAN HEDING ENVIRONMENTAL PROTECTION ENG