Convection oven and method of drying solvents

Abstract From the Canadian patent

An elongated workpiece carrying a coating such as, paint, containing an oxidizable solvent is dried or cured in an oven containing a plurality of zones. Oven gases are circulated in each zone around the workpiece. To minimize the fuel required for heating the oven and to reduce the volume of oven gases exhausted to the atmosphere, oven gases containing oxidizable solvent vapour are transferred from one oven zone to another where they are incinerated to provide additional heat input to that zone, such incineration also reducing the solvent vapour content of the oven gases and providing zone ventilation. Oven gases are also incinerated to heat a radiant heater for radiant heating of the …