US 6,719,898 B1Granted

Sieving device

AssigneeGeiger International GmbH & Co. Technology KG

InventorWerner Marzluf

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Abstract

The invention relates to a sieving device for mechanically separating and extracting solid bodies or solid matter from a liquid current, in particular, to sieve gratings for process or effluent currents or for use in sewage treatment plants or hydroelectric power stations. Said device comprises a number of sieving panels (2, 2′, 2″) which are substantially arranged in a transverse direction to the direction of flow of the liquid current, are linked together, and which form a revolving endless sieve belt (1) immersing into the liquid current (20). The device also comprises a drive for the endless sieve belt (1), whereby the sieving panels (2, 2′, 2″) are arranged successively in such a way that the revolving motion of the endless sieve belt (1) is comprised within one single plane which lies substantially perpendicular to the direction of flow of the liquid current (20).

Claims43

Dependent claims

Sieving device for mechanically separating and extracting solid components, solid bodies, or solid matter from a liquid flowing in a sluice channel, in particular, sieve or filter grating for process, cooling water, or effluent currents or for use in sewage treatment plants or hydroelectric power stations,

with a number of sieving panels which are substantially arranged in a transverse direction to the direction of flow of the liquid current, and which form a revolving endless sieve belt immersing into the liquid current, on which endless sieve belt a plurality of sieving panels which are sequentially arranged adjacent to one another in the direction of motion of the endless sieve belt form a common sieving surface in the sluice channel, and with a drive for the endless sieve belt, characterized in that
the sieving panels are arranged successively on the endless sieve belt in such a way that the revolving motion of the endless sieve belt is substantially comprised within one single plane, wherein pivotal axes around which the sieving panels are pivoted at points of deflection of the endless sieve belt are perpendicular to the sieving surface.

Dependencies are inferred from the claim text.

Facts

Application: 10/048,152Filed 24 Jan 2002
Priority: DE 199 35 32128 Jul 1999
Granted: 13 Apr 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B01D 33/333
Filters with filtering elements which move during the filtering operation: with individual filtering elements moving along a closed path
B01D 33/37
With multiple filtering elements characterised by their mutual disposition: in parallel connection
B01D 33/50
By flushing, e.g. counter-current air-bumps: with backwash arms, shoes or nozzles
B01D 33/76
Having feed or discharge devices: for discharging the filter cake, e.g. chutes