Patent ID: 7918040

Claim:
A drier installation for drying a web, said installation being provided for drying a maximum web width, said installation comprising: radiant elements configured to radiate said web arranged in at least one row stretching out in a transverse direction to a substantially entire maximum web width, wherein the radiant elements produce combustion products, and at least a transversal convective system equipped with suction and blowing devices configured to suck at least part of the combustion products produced by said radiant elements by a suction duct and configured to blow said part of the combustion products towards said web by a blowing duct, wherein said suction and blowing ducts stretch out in the transverse direction of said web, said convective system comprising at least a mixing device installed opposite of the web in relation to corresponding suction and blowing ducts, wherein the mixing device is arranged so as to suck and/or blow said at least part of the combustion products, said sucked and/or blown at least part of the combustion products comprising different jets, wherein respective trajectories of the different jets are represented by vectors, each of said vectors having a projection in a plane perpendicular to said web and stretching out in the transverse direction of said web, wherein a vector average of the projections of the vectors in the plane perpendicular to said web and stretching out in the transverse direction of said web has a component parallel to the web that is smaller than said maximum web width of said web.