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Circular screen and device for producing same

A manufacturing device and circular technology, which is applied in the field of circular sieves and circular sieve manufacturing devices, can solve problems such as sieve hole clogging, and achieve the effects of reducing clogging tendency, enhancing gear shape, and large sieve hole area ratio

Active Publication Date: 2019-01-04
SCHERDEL INNOTEC FORSCHUNGS UND ENTWICKLUNGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this type of screen is that its openings are often blocked during operation

Method used

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  • Circular screen and device for producing same
  • Circular screen and device for producing same
  • Circular screen and device for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0074] figure 1 An exemplary perspective view of a circular screen 2 is shown.

[0075] The circular screen 2 has a cylindrical base body consisting of a strip-shaped sheet 2 wound into a plurality of strip-shaped sheet helical coils. In this non-limiting embodiment, the circular screen 2 has about 40 helical turns of ribbon sheet.

[0076] The wound strip-shaped sheet metal 2 has a regular corrugation shape with alternating crests and troughs, which in the above-described exemplary embodiment is approximately sinusoidal.

[0077] To the uppermost helical coil of the strip-shaped sheet, the helical coils of the strip-shaped sheet are arranged in phase with each other, so that their troughs and their crests are arranged at the same circumferential positions, so that the troughs of the helical coils of the strip-shaped sheet are respectively along the respective lower bands. The trough direction of the helical coil of the strip-shaped sheet extends in the direction of the trou...

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Abstract

A circular screen according to the invention comprises a substantially cylindrical and / or truncated cone-shaped main part which is made of a sheet metal strip wound into a plurality of sheet metal strip coils (4). The sheet metal strip describes a wavy line which oscillates about a reference plane and has wave peaks (6) and wave valleys (10). Adjacent sheet metal strip coils (4) lie against one another such that screen openings (11) are formed in the radial direction, and the height of the wave peaks (6) and the wave valleys (10) of the sheet metal strip coils (4) increases outwards in the radial direction with respect to the reference plane such that the size of the screen openings (11) increases radially outwards in the flow direction, or the height of the wave peaks (6) and the wave valleys (10) of the sheet metal strip coils (4) increases inwards in the radial direction with respect to the reference plane such that the size of the screen openings (11) increases radially inwards inthe flow direction.

Description

technical field [0001] The above invention relates to a circular sieve and a circular sieve manufacturing apparatus. Background technique [0002] DE 20 2006 011 089 U1 discloses a sieve having a plurality of mesh openings on the screen surface. The sieve has a plurality of vertical, side-by-side strip-shaped sheet layers which partially adjoin one another. The strip-shaped thin-plate layers should be arranged such that the end faces of the strip-shaped thin-plate layers are basically arranged along the plane of the screen surface, and the non-adjacent regions of adjacent strip-shaped thin-plate layers form screen holes. A disadvantage of such screens is that their screen openings are often clogged during operation. Contents of the invention [0003] It is therefore the object of the present invention to provide a circular sieve which is inexpensive to produce and which is less prone to clogging of the screen openings during operation. [0004] This object is solved by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B07B1/18B07B1/46B21D7/08B21D11/06B21D13/04B21D53/00
CPCB07B1/18B07B1/4618B21D7/08B21D11/06B21D13/04B21D53/00
Inventor 弗兰克·洛特弗朗茨·安德里茨基
Owner SCHERDEL INNOTEC FORSCHUNGS UND ENTWICKLUNGS
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