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Dirt removal device for fine grid

A technology of fine grid and filter screen, which is applied in the direction of filtration separation, separation method, mobile filter element filter, etc., can solve the problem of intercepting fine debris stuck in the grid gap, so as to avoid mechanical failure and often adjust the workload, Easy to clean and separate, simplify the effect of driving structure

Active Publication Date: 2012-07-04
PENYAO ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fine grid of this structure still needs to be equipped with a slag removal scraper, and the shortcomings of the dust removal slag scraper have not been overcome; in addition, the wedge-shaped grid bar is used, and the fine debris may still be stuck in the grid gap

Method used

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  • Dirt removal device for fine grid
  • Dirt removal device for fine grid
  • Dirt removal device for fine grid

Examples

Experimental program
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Embodiment

[0018] Embodiment: Referring to the accompanying drawings, the fine grid decontamination device of the present invention includes a cover-shaped drum 2 with one end closed and the other end open Φ2.5 meters, and there is a stainless steel wire filter screen with an inserted piece assembled aperture of 10-20 mesh on the peripheral surface of the drum 5. There are spraying and flushing nozzles 1 on the outer circumference (or inner circumference) above the drum, and there is a slag discharge tank 6 that protrudes obliquely from the drum opening at the upper inner part of the drum. The slag trolley 10 (both are installed separately, can be omitted). The cover-shaped filter drum is supported by a central shaft 3 and placed on a U-shaped water tank 4 (wherein the lower half is immersed in water), and the axial width of the filter drum is slightly smaller than the width of the U-shaped tank (it can rotate in the U-shaped tank), and The rotation is driven by the central axis 3. Ther...

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PUM

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Abstract

The invention relates to the improvement of a dirt removal device for a fine grid. The dirt removal device is characterized in that a cylindrical filter screen is a rotary filter cartridge with a cover-shaped peripheral surface filter screen, and the rotary filter cartridge is rotated by rotating a central shaft; the peripheral surface filter screen is a woven mesh or a hole pattern plate; a spraying washing nozzle is formed outside and / or inside the top of the rotary filter cartridge; and an inclined dreg dropping groove which extends out of the width of the rotary cartridge is formed on the upper part of the inner circumference of the rotary filter cartridge. According to the dirt removal device for the fine grid, a large shell is eliminated, and a rake (brush) filter screen sweeping and dreg removal device is not needed to be arranged additionally, so that a structure is simple; and due to the rotation of the central shaft, the dirt removal device is reliable in running and is not maintained basically, and the woven mesh or the hole pattern plate prevents impurities from being clamped in pores, so that the defect that fine impurities on the grid filter screen are easily clamped in gaps is overcome, and the intercepted impurities are convenient to clean and separate. Simultaneously, dirt is not removed by using rake teeth, so the filter screen can meet the requirement of filter accuracy, holes or the gaps can be made to be fine arbitrarily, and the dirt removal device is particularly suitable for high-accuracy filtering.

Description

technical field [0001] The present invention is an improvement on fine grids for intercepting suspended debris and filtering out fine suspended particles and fibrous pollution intercepting equipment for sewage treatment, and particularly relates to a structure that is simpler, the intercepted debris can be automatically removed, and it is not easy to be stuck into the filter screen The fine grid trash stop device. Background technique [0002] Sewage often contains some suspended impurities, which need to be separated from the water before advanced treatment to avoid increasing the difficulty of subsequent treatment such as biochemical treatment and clogging pipes. Coarse grids are often used to separate relatively large suspended solids before water intake, and fine grids after water intake The grid separates fine suspended matter. [0003] The fine grids in the prior art mostly use grid bars and flat grids composed of rakes inserted into the gaps of the grid bars, such as...

Claims

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Application Information

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IPC IPC(8): B01D33/11B01D33/50B01D33/44
Inventor 王洪春黄政新周国亚孙建锋李贺
Owner PENYAO ENVIRONMENTAL PROTECTION
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