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Dirt precipitator for a highly viscous medium

A separator and high-viscosity technology, which is applied in the field of dirt separators, can solve problems affecting the quality of molten materials and achieve the effect of increasing the filtration area

Inactive Publication Date: 2013-05-08
NORDSON HLDG S A R L & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This affects the quality of the filtered melt

Method used

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  • Dirt precipitator for a highly viscous medium
  • Dirt precipitator for a highly viscous medium
  • Dirt precipitator for a highly viscous medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] figure 1 Viewed on the housing from the front (viewed in the flow direction), the complete dirt separator 100 is shown, comprising the front housing element 30 and the rear housing element 20 . The housing elements 20 , 30 are arranged at a distance from one another and enclose between them a rotatable sieve wheel 10 with a plurality of sieve locations 11 . 1 . . . 11 . 12 .

[0064] Mounted at the housing is a drive unit 40 , which in this case comprises a pneumatic cylinder, which is supported in a pivotable manner and which has a follower element 41 at its end, which engages at the outer periphery of the sieve wheel 10 In the tooth portion 42 formed. Due to the own weight of the drive unit 40 , the follower element 41 always rests on the toothing 42 . With a slight advance movement, it rests on the tooth flank of the next tooth and sinks behind it, so that the sieve wheel 10 is rotated by an angle when viewed in the clockwise direction during the next pull-back mov...

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Abstract

The invention relates to a dirt precipitator (100) for a highly viscous medium, having a housing comprising a front housing element (30; 30') that comprises at least one inlet channel (33) and a rear housing element (20) that comprises at least one outlet channel (23), and having a screen wheel (10; 10') rotatably mounted between the housing elements (20, 30; 30') having a number n of screen positions disposed in a ring zone, on each of which at least one screen opening (11.1,...,11.12) having at least one screen insert element is provided. The inlet channel (33), the outlet channel (23), and the screen opening (11.1,..., 11.12) are disposed flush one after the other in at least one working position and form a flow channel. In all positions of the screen wheel (10; 10'), more than 50% of the screen openings (11.1,...,11.12) are always able to be permeated, and are impinged by flow from at least one inlet channel and from which at least one outlet channel leads.

Description

technical field [0001] The invention relates to a dirt separator for highly viscous media with the features of the preamble of claim 1 . Background technique [0002] In order to filter out clots and impurities in highly viscous media such as plastic melts, screens are connected to the fluid flow and must be continuously added and replaced during operation. In order to be able to maintain the production run during the replacement or cleaning of the sieve, a dirt separator of this type with a sieve wheel (Siebrad) is also known, on which a plurality of sieve positions (Siebstelle) are arranged, for example from the document EP 379 966 A2 is known. It consists of a front housing element and a rear housing element, between which the sieve wheel is arranged. The sieve wheel contains a plurality of sieve openings, ie perforations of the disk-shaped sieve wheel, which are lined accordingly with permeable sieve elements. Inlet or outlet channels are respectively provided in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/68B01D29/96B29C48/88
CPCB29C47/684B29C47/68B29C47/0815B29C47/88B29C47/0009B29C47/0884B29C47/683B29C47/081B29C47/0886B29C47/681B29C48/6914B29C48/273B29C48/2545B29C48/2554B29C48/2725B29C48/6916B29C48/03B29C48/69B29C48/88B29B7/58
Inventor R.米德勒
Owner NORDSON HLDG S A R L & CO
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