B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
100/9
B30B 3/00 (2006.01) B30B 9/20 (2006.01)
Patent
CA 1055776
ABSTRACT OF THE DISCLOSURE There is disclosed a device for dewatering sludge such as residuals in sewage discharge processing installations comprising a device for dewatering sludge in the form of cakes, said device comprising in combin- ation: a first rotary dewatering drum having a porous circumferential wall and a second rotary dewatering drum also having a porous circumferential wall disposed side-by-side of said first drum, said drums being rotatable in opposite directions; two parallel spaced apart filter bands for supporting and conveying sludge cakes placed therebetween, said filter bands being guided about part of the circumferential wall of the first drum for conveying the bands in the rotational direction of the first drum and also guided about part of the circumferential wall of the second drum for conveying the bands in the rotational direction of the second drum and thus in opposition to the moving direction of the bands while being conveyed about the first drum. This device better overcomes the prior art problem of insufficient break-up of the sludge during the dewatering operation.
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