SU1638500A1 - Dryer for sheet materials - Google Patents

Abstract

The invention relates to a drying technique, can be used for drying long-length woven and nonwoven materials, as well as printed circuit boards and allows to intensify the drying process. The drying chamber is divided into upper 1 and lower 2 parts, while part 1 is installed with an adjustable gap. The material moves in the gap between the drive rollers 7 made, for example, of soft or porous rubber. Each roller 7 is provided with an additional spring loaded roller 10 serving as an electric heater, with each pair of rollers 7 and 10 tensioning a hygroscopic movable tape 13, made, for example, in the form of a Mobius loop. The gap between the adjacent rollers 7 is less than the thickness of the material being dried. The rollers 7 move not only the material but also the belts 13, which absorb moisture. The roller 10. is heated to the boiling point and removed by the liquid; the tape 13 dries out. The evaporated liquid is carried out by air drawn through the gap between parts 1 and 2 of the chamber by means of fans 15. 4 sludge.

Description

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Claims (1)

A sheet-type dryer containing a chamber divided by a plane of material passage into upper and lower parts, in which a two-tier system of drive rollers mounted with a gap relative to each other is placed, each drive roller interacting with an additional roller 40 supporting a hygroscopic movable tape, devices supply and output of material and heat-ventilated equipment, characterized in that. that, in order to intensify the drying process, the hygroscopic moving tape is made in the form of a Moebius loop and is installed on each pair of drive and additional rollers, the last of which are equipped with heating elements and 50 yen springs, while the upper part of the chamber is made with the possibility of vertical movement.