Industrial oven with expandable surfaces

摘要

An industrial oven has at least one insulated wall including an inner shell connected to an outer shell by a plurality of pins extending through oversized holes in sheet metal plates forming the inner shell. The metal plates are simple metal sheets which can be easily sheared to size. The pins can compensate for significant misalignment between the inner and outer shells and do not require any modification of the insulation layers prior to mounting on the pins.