Stilling grid, cleaning method thereof and biological filtration equipment

A biological filtration and stilling technology, applied in biological treatment devices, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as the inability to adjust the stilling grid, large loss of filter material, and inconvenient foam discharge.

Pending Publication Date: 2021-07-06
安徽三番环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of the prior art, the present invention provides a stilling grid and its cleaning method and biological filtration equipment to solve the problem that the existing stilling grid cannot be adjusted, backwash wastewater and filter material cannot be separated during use, and filter material is lost Large and inconvenient foam discharge

Method used

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  • Stilling grid, cleaning method thereof and biological filtration equipment
  • Stilling grid, cleaning method thereof and biological filtration equipment
  • Stilling grid, cleaning method thereof and biological filtration equipment

Examples

Experimental program
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Embodiment 1

[0059] see Figure 1-3 as well as Image 6 , this embodiment provides a biological filter device. The biological filtration equipment includes a filter tank 5, at least one row of filter heads 6, at least one filter plate corresponding to the at least one row of filter heads 6, at least one water washing pipeline 7, an air source and a stilling grid.

[0060] The filter 5 in this embodiment is a biological filter, which has the advantages of high organic matter volume load, short hydraulic retention time, small footprint, high treatment efficiency, strong impact load resistance, easy film formation, and no secondary sedimentation. Pool and many other advantages, it is a process that can stably and effectively solve the problem of sewage TN and SS exceeding the standard in the current reclaimed water treatment technology.

[0061] There are several filter heads in every row of filter heads 6, which are used to purify the sewage in the filter tank 5. In this embodiment, the n...

Embodiment 2

[0084] see Figure 4 The difference between this embodiment and Embodiment 1 is that the moving member 42 includes a pulley 42a and a wheel frame 42b mounted on the pulley 42a. The wheel frame 42b is fixedly connected to the position where the rectangular frame 11 faces the slide rail 41 . The wheel frame 42b is fixed on the rectangular frame 11 to realize the assembly of the pulley 42a in the slide rail 41. When the stilling grid is moved by buoyancy or its own gravity, the pulley 42a moves along the slide rail 41 to assist the lifting of the stilling grid.

Embodiment 3

[0086] see Figure 5 , The difference between this embodiment and Embodiment 1 is that the moving part 42c adopts double flat wheels. The double flat wheels are fixedly connected to the position where the rectangular frame 11 faces the slide rail 41 . The double flat wheels are installed on the rectangular frame 11 and assembled in the slide rail 41, so that when the stilling grid moves under the control of buoyancy or its own gravity, the movement of the double flat wheels assists the lifting of the stilling grid

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Abstract

The invention discloses a stilling grid, a cleaning method thereof and biological filtration equipment. The stilling grid is mounted in a filter tank of the biological filtration equipment, and the biological filtration equipment further comprises a row of filter heads mounted in the filter tank and a water washing pipeline. The stilling grid comprises a grid structure which is used for intercepting a filter material in a filter tank, and further comprises a buoy, at least one air pipe corresponding to the buoy, and at least one air valve corresponding to the at least one air pipe. The grid structure is slidably installed relative to the liquid level in the filter tank, and height adjustment is achieved through driving of the buoy. The buoy is provided with at least one air inlet hole and at least one air outlet hole. One end of each air pipe communicates with the buoy through the air inlet hole. The air valve is used for controlling on-off of the corresponding air pipe. The stilling grid provided by the invention realizes height adjustment by using an air source during backwashing of the filter tank, is low in energy consumption, can intercept a filter material to reduce the loss rate of the filter material, and can discharge foam to improve the water quality.

Description

technical field [0001] The invention relates to the field of environmental protection equipment, in particular to a stilling grid, and also to a biological filtration device with the stilling grid and a cleaning method using the stilling grid for cleaning. Background technique [0002] With the development of industry and the construction of cities, water treatment standards are becoming increasingly stringent. Therefore, seeking economical and efficient sewage treatment technology has realistic and far-reaching significance for promoting the development of sewage reuse and the restoration of water environment. Biological filtration equipment has It has many advantages such as high volumetric load of organic matter, short hydraulic retention time, small footprint, high treatment efficiency, strong impact load resistance, easy film formation, and no secondary sedimentation tank. As the current recycled water treatment technology, it can stably and effectively solve the problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00
CPCC02F3/00C02F2203/006C02F2303/14
Inventor 杨志强罗加永
Owner 安徽三番环保工程有限公司
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