Method and apparatus for continuously drying boards coated on both sides

An apparatus for continuously drying boards coated on both sides while they are conveyed through a drying zone, comprising:

• a. a plurality of heat sources located within said drying zone;
• b. a plurality of conveyor rollers, located beneath said heat sources, which convey said boards horizontally through said drying zone, wherein each of said conveyor roller comprises
• (i) a hollow cooling roller having first and second opposed end faces,
• (ii) first and second hollow shaft journals connected to the respective end faces of said conveyor roller,
• (iii) first and second rotary distributors connected to the respective shaft journals,
• (iv) a coolant feed line connected to said first rotary distributor, and
• (v) a coolant outlet line connected to said second rotary distributor;
• and
• c. two inclined plate frames which are located in parallel with one another and the angle of inclination of each of which is adjustable about a common axis of rotation, wherein said plurality of said conveyor rollers are arranged on said plate frames to form a V-shaped conveyor apparatus.

An apparatus for continuously drying boards coated on both sides while they are conveyed through a drying zone, comprising:

• a. a plurality of heat sources located within said drying zone;
• b. a plurality of conveyor rollers, located beneath said heat sources, which convey said boards through said drying zone;
• c. two inclined plate frames which are located in parallel with one another and the angle of inclination of each of which is adjustable about a common axis of rotation, wherein said plurality of said conveyor rollers are arranged on said plate frames to form a V-shaped conveyor apparatus;
• and
• d. means, located within each of said conveyor rollers, for cooling the outer peripheral surface of each of said conveyor rollers, whereby the bottom surfaces of said boards are cooled by contacting the cooled surfaces of said conveyor rollers.