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Filter

A filter and filter disc technology, applied in the direction of filtration and separation, moving filter element filters, sensors, etc., can solve problems such as wear of sealing elements, improve turbulence, eliminate uneven spacing, and improve cleaning effect.

Inactive Publication Date: 2006-06-07
ANDRITZ AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to severe wear of the sealing elements

Method used

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Embodiment Construction

[0035] figure 1 The prior art filter assembly 1 is shown. A plurality of film discs 3 are fixed on each hollow shaft 2, 2'. The liquid / suspension to be filtered flows into the tank 4 through the pipe 5. The enclosed box 4 is shown here. This box can also be open, in which case the film is immersed in the liquid. The film disc 3 here has a cylindrical cross section. The filtrate passes through the membrane into the hollow disk body 3 and is introduced into the center of the disk by permeation, and then flows out of the filter through the hollow shaft 2, 2'and the tube 6. The removed concentrate can be discharged through pipe 7 later. The membrane module 1 can be operated either by overpressure on the concentration side or by negative pressure on the permeate side. Correspondingly, the assembly 1 can be enclosed in a closed housing or used as an immersed membrane. Overpressure can be as high as 10-14 bar.

[0036] The membrane disc 3 can be composed of an inorganic body and a supp...

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Abstract

The invention relates to a filter (1) comprising a plurality of rotating filter discs (3) arranged on a shaft (2) and provided with a porous filter medium. The invention is characterized in that elastomer elements (8, 8') are used as separators and are arranged between each individual filter disc (3) on the shaft (2). The invention also relates to a filter disc (3) for such a filter (1).

Description

Technical field [0001] The invention relates to a filter with several rotating filter discs mounted on a shaft, the filter discs being equipped with porous filter media. Background technique [0002] One such filter is known from AT 406936 (AT-A 155 / 99). The problem is that a large number of filter discs are used on one shaft, and these filter discs have to overlap with filter discs on other shafts. In order to maintain flexibility in selecting the disc support and to be able to use ceramic elements, for example, it is recommended to make a frictional connection between the shaft and the disc. Here, the frictional connection must be formed by a sealing element. These situations will inevitably produce the following dangers and problems: [0003] The influence of manufacturing tolerances (disks, shafts and spacers) and compressibility of the sealing element may accumulate, with the result that the desired disk spacing cannot be maintained. In extreme cases, since the disks are in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D33/23H04R3/00B01D63/16B01D33/21B01D71/02B01D71/06H04R1/00
CPCB01D33/23H04R1/00B01D33/37
Inventor H·策格W·埃尔金格
Owner ANDRITZ AG
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