Type WCrr heat exchangers are used to heat sewage sludge, process suspended solids and other media with dry matter less than 8%.
We offer heat exchangers with housing, one or multi-sectional. Sludge recuperators are produced with autonomous heating systems and external heat transfer water loops.
Heat exchanging pipelines are insulated with 5 to 10cm thick mineral wool. Housing is made of aluminium sheets, supporting structure, pipes and fittings are made of stainless steel.
Heat transfer takes place through heat exchanging pipelines when media flows through pipes upstream.
Total heat transfer coefficient is calculated individually for each installation. Type WCrr heat exchangers are designed for temperatures lower than 75oC for mesophilic digestion) which prevents sludge sintering inside pipelines.