| The Swiss Combi® drier is a unique closed
loop drying system producing a high quality granular product from
both raw and treated sludges. The process is both effective and
clean: |
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heat is generated at 800°C in a combustion chamber
fired by oil, natural gas or biogas |
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this heat is transferred to a heat exchanger where drying air
is heated to 450°C |
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sludge from the dewatering plant is fed into a twin shaft mixer
where initial granulation begins to take place |
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the sludge then passes into a single pass drying drum where
the drying air evaporates the water from the sludge and produces
and evenly dried, almost pasteurised product |
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the resultant granules are passed to a screen sizer prior to
storage and bagging |
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the drying air is returned to the heat exchanger for reheating |
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charring of the product is prevented by self regulating heating
within the drying drum, whilst damage to the granules is minimised
by the innovative air conveying system within the drying unit. |
| For more detailed information or further enquiries
please contact us. |
