Buoyancy water decanter

A decanter and buoyancy technology, which is applied in the field of sewage treatment drainage equipment, can solve the problems of the mismatch between the decanter's descending speed and the water level's descending speed, the unsteady water flow rate, and the high water flow rate, so as to achieve uniform and stable decanting and smooth operation. The effect of stabilizing and extending the weir length

Active Publication Date: 2012-01-04
THUNIP CORP LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

[0011] Aiming at the deficiencies and defects of the prior art, the present invention aims to design a decanter to solve the mismatch between the descending speed of the decanter a

Method used

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  • Buoyancy water decanter

Examples

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Example Embodiment

[0033] The specific embodiments of the present invention will be described in further detail below in conjunction with the drawings and embodiments. The following examples are used to illustrate the present invention, but not to limit the scope of the present invention.

[0034] The structure of the floating decanter in this embodiment is as follows figure 1 As shown, the water collection weir 1 is a straight weir with a U-shaped cross-section, and a triangular weir 2 is installed at the weir mouth. A drain hose 3 is connected to the drain port at the bottom of the water collecting weir tank 1, and the other end of the drain hose 3 is connected to a drain bottom tube 14 installed at the bottom 16 of the pool. The pipe diameter and number of the drain hose can be adjusted appropriately according to the amount of decanter and the size of the decanter. In this embodiment, there are five drain hoses 3.

[0035] A buoy 5 is fixed on both sides of the water collection weir trough 1 thro...

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Abstract

The invention belongs to the technical field of drainage equipment for sewage treatment, and particularly relates to a buoyancy water decanter of which the working state is similar to the working state of a secondary sedimentation tank effluent weir. The buoyancy water decanter comprises a catchment weir notch and a control device, wherein the catchment weir notch floats on the water surface; thecontrol device is used for controlling the water inflow depth of the catchment weir notch; the bottom of the catchment weir notch is provided with a water outlet; and the water outlet is connected with a drain pipe. The water decanter adopting the technology is simple and reliable to operate and control and is stable to operate. The situation that effluent is mixed with sludge can be greatly reduced. According to the buoyancy action, the water decanter floats on the water surface, so that the integral water decantation of the water decanter is even and stable, and thus the weir length of the water decanter can be lengthened as much as possible.

Description

technical field [0001] The invention belongs to the technical field of drainage equipment for sewage treatment, in particular to a buoyancy decanter close to the working state of the outlet weir of a secondary settling tank. Background technique [0002] At present, with the widespread application of Sequencing Batch Activated Sludge Process (hereinafter referred to as SBR) sewage treatment process, the water outlet method needs to meet the requirements of intermittent water outlet according to the operation cycle (stop water outlet during aeration reaction). In order to meet this requirement, domestic and foreign manufacturers have developed various decanters, the main types of equipment are: [0003] 1. Rotary decanter [0004] This type of decanter relies on a mechanical push rod to push the decanter standpipe, driving the decanter weir down, and draining the pool water out of the pool. This type of decanter is most commonly used in China. Its advantage is that it uses ...

Claims

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Application Information

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IPC IPC(8): C02F3/12
CPCY02W10/10
Inventor 李星文王旭李福光袁琳葛志强
Owner THUNIP CORP LTD
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