Patent ID: 6354196
Filing Date: 2002-03-12
Classification: A21B,A23L,F25D,F26B

Abstract:
An apparatus for gas treatment of products, comprisinga housing (1) having top, bottom and side walls (2; 3; 4, 5), a conveyor belt (8) for transporting the products along a first path (10) in the housing (1), a tunnel (11) having perforated walls (12) and enclosing the conveyor belt (8) along the first path (10), gas circulation means (18) communicating with the tunnel (11) via the perforated walls (12) for circulating gas into the tunnel (11) in the form of gas jets impinging upon the products carried by the conveyor belt (8), and out of the tunnel (11) in a return channel (13) back to the gas circulation means (18), and gas-conditioning means (19, 20) positioned in the return channel (13) for conditioning the gas circulated by the gas circulation means (18), characterised by walls (15-17) being separated from the walls (2-5) of the housing (1), said separated walls (15-17) being connected with the perforated walls (12) of the tunnel (11) and having an opening towards and connected to an outlet of the gas. circulation means (18) in order to form a high pressure chamber (14) substantially above the tunnel (11) and constituting a gas circulation channel from said outlet of the gas circulation means (18) to the perforated walls (12) of the tunnel (11), at least one substantially vertical part of the walls (15-17) forming the high-pressure chamber (14) being removable so as to provide access to the inside of the high-pressure chamber (14).