8/10/2019 Sandwaschanlage Engl

1/2

G r i t w a s h u n i t

FSM FrankenbergerGmbH & Co. KG

Equipment for Waterand Waste Water

Inlet Works

F S M F r a n k e n b e r g e

r G m b H & C o . K G

V o r d e m H o h e n S t e i n

1 D - 3 5 4 1 5 P o h l h e i m

/ G a r b e n t e i c h

T e l. + 4 9 ( 0 ) 0 6 4 0 4 - 9

1 9 4 - 0 F a x + 4 9 ( 0 ) 0

6 4 0 4 - 9 1 9 4 - 9 1

i n f o @ f s m - u m w e l t. d

e w w w. f s m - u m w e

l t. d e

8/10/2019 Sandwaschanlage Engl

2/2

The FSM grit wash unit has beendeveloped with three aims in mind:

1. To achieve a very highseparation performance offinest grit particles

2. To achieve the limit value calledfor in the document TASiedlungsabfall (residentialwaste) for depositing on aClass 1 dumping site withupstream coarse screen.

3. Grit wash unit in dry and wet

charged versions.

The FSM grit wash unit consists of two basic items grit wash tank and discharge screw. Depending upon the effectiveness of the inlet scree- ning unit, the screening drum can be dispensed with. During develop- ment, special emphasis was placed

on low water consumption at low admission pressure in the service water. The grit wash unit provides high performance coupled with low operating costs.

Functionalprinciple:

The grit/water mixture is fed in viathe inlet flange of the grit wash tank.

Organic matter is held in suspensionand floated off while the grit is sedi-mented in the container. With theaddition of water, the sedimentedgrit is separated from the remainingorganic constituents using a stirringdevice and up-current technique.The grit is removed from the contai-ner, de-watered and discharged viaa discharge screw.

With the addition of a bunker at theupstream side, the FSM grit wash unitcan be extended to become a re-ception station for sewer grit. If afractionating and washing drum ispositioned between the bunker andthe wash unit, the installation can beadditionally used for conditioningstreet sweepings.

Features:

High reliability through robustconstruction

Can be used with upstreamcoarse screen

Service water which issubstantially free of CODand BOD can be used aswash water

The grit washer separator can be optionally mounted on a

skimmer and fed with wash water from the grit chamber

The organic content can bereduced to volatile solids 95% of particle size 0.2 mm

Material/make:

Machine frame stainless steel 1.4301 or 1.4571

Conveyor screw special steel

drives worm geared motors, make SEW