Device for cleaning and heat recovery from the exhaust gases in heat treatment and drying installations

A device for the cleaning and heat recovery from the exhaust gases in a production installation for drying and heat treatment in the textile industry using a cooling fluid, comprising:

• a housing having a multiplicity of vertically disposed, parallel, double-walled cooling plates through which cooling fluid may flow, disposed adjacent one another with the outer lateral faces of adjacent plates opposing one another and each being provided with laterally extending corrugations serving as distance spacers, said housing having a common support on which said plates are flexibly and slidably mounted, for movement toward and away from one another so that, when said plates are moved closely adjacent one another, they define narrow passages therebetween for the flow of exhaust gases therethrough and, when said plates are moved apart, they define wide spaces between the plates to facilitate their cleaning;
• means for supplying exhaust gases from above said plates and means for discharging exhaust gases from below said plates, the gases passing through the narrow spaces between the opposed outer lateral faces of said adjacent plates from said supply means to said exhaust means;
• and
• means for supplying cooling fluid coupled to the lower ends of said plates and means for discharging cooling fluid coupled to the upper ends of said plates, the fluid passing through the walls of said plates from said supply to said discharge means in a direction opposite to the flow of the exhaust gases.