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Backwash filter

A filter, backwashing technology, applied in the direction of filtration separation, mobile filter element filters, chemical instruments and methods, etc.

Inactive Publication Date: 2009-12-23
LENZING AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known backwash filters are also only suitable for low-viscosity media for this reason

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0024] follow in figure 1 In the embodiment of the backflush filter shown in FIG. 1 , a likewise cylindrical housing-shaped filter body 2 is rotatably mounted in a cylindrical housing-shaped housing 1 , wherein the housing 1 is arranged in a stationary manner. The rotary drive 3 for the filter body 2 is implemented by an electric motor 4 , which drives the filter body 2 via a transmission gear 5 . The backflush filter is equipped with an aeration device and has a control device for controlling the pressure. The shell 1 can be heated, and the heating tube is indicated by H.

[0025] The filter body 2 itself has an outer pressure plate 6 extending over the entire circumference, optionally composed of segments, and an inner support plate 7 also extending over the entire circumference, between which a filter material 8 is used. Both the pressure plate and the support plate are provided with radially oriented openings 9 , so that the medium can flow through the openings 9 passing...

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PUM

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Abstract

The invention relates to a backwash filter, especially for highly viscous media, comprising a filter body (2) forming a cylinder sheath in a housing (1), characterized in that the housing (1) and the filter body (2) can be rotated relative to each other about the axis of the filter body (2), wherein the filter body (2) separates a media supply chamber (14) from a media discharge chamber (16) and comprises a washing agent discharge channel (10) that extends along a generatrix of the filter body (2). According to the invention, said washing agent discharge channel can be moved relative to the filter body (2) and is in fluid connection with the filter body (2) over the entire length and the entire circumference thereof, thus forming a flow path opening into the washing agent discharge channel (10). In order to achieve an increased backwash efficiency, a higher throughput and in order to protect the filter material, said backwash filter is characterized in that the fluid connection is only established via a partial region of the longitudinal extension (20) of a generatrix of the filter body (2).

Description

technical field [0001] The invention relates to a backwash filter, in particular for high-viscosity media, with a filter body inside a housing, forming a cylindrical housing, wherein the housing and the filter body can be opposed to each other around the filter body axis Rotating, the filter body separates the media inflow chamber from the media outflow chamber and has a flushing agent outlet channel running along the filter body generatrix (Erzeugenden), which can move relative to the filter body and which is connected to the filter body in its A fluid connection is provided over its entire length and over its entire circumference with the formation of a flow of rinsing agent to the rinsing agent outlet channel. Background technique [0002] Numerous variants of backwash filters are known, for example from DE 198 03 083 A1, DE 19523 462 A1 or AT 004594 U1. All these known backwash filters have a housing in which a cylindrical housing-shaped filter body is arranged, which s...

Claims

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Application Information

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IPC IPC(8): B01D33/50B01D33/073
CPCB01D33/073B01D33/48B01D33/76B29C48/273B29C48/694B01D33/50
Inventor C·施雷姆普夫H·富克斯U·莫德尔
Owner LENZING AG
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