Drier for a lacquering line

Abstract

A drier for a lacquering line in a known manner comprises inside a drier housing a plurality of drier sections, in which heated circulating air is circulated with the aid of fans. Heating of the circulating air is effected with the aid of a heating unit, which is common to all drier sections, and a common fresh-air heat exchanger, which is disposed downstream of the heating unit and to which fresh air is supplied from the environment via a pressure regulator. The fresh air heated in said manner is directed via branch lines to the individual drier sections. The quantity of heated fresh air supplied and hence ultimately the temperature in the respective drier section is determined by control flaps in branch lines, which connect a common fresh-air distribution line to the respective sections. There may be connected in parallel to said control flaps, which convey hot fresh air, control flaps, which at least partially convey cool fresh air and are controlled in the opposite direction such that the total fresh air quantity flowing through a parallel pair of control flaps remains constant. The drier according to the invention is inexpensive and easy to maintain. Its style of construction means that in and around the drier housing there is a lot of space free, which in prior art was occupied by a plurality of heating units and heat exchangers associated with the latter.

Dependencies are inferred from the claim text.