| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a simple apparatus which can eliminate the defects of a spray system and can efficiently evaporate the solvent of a solvent soln. of a resin, even when the soln. has a high viscosity, to separate the resin from the solvent. SOLUTION: This apparatus comprises heating drums 1, 2 facing to each other, kept in contact with each other under pressure, and rotating in the opposite directions, a means for holding a solvent soln. of a resin in the liq. reservoir 3 formed by the heating drums, a means 4 for supplying the solvent soln. to the reservoir 3, scrapers 6, 7 installed at the upper parts of the opposite sides (outer sides) to the facing sides for scraping resin films from the drum surfaces, means 8, 9 for recovering the resin scraped by scrapers 6, 1, hoods 10, 11 for isolating the liq. reservoir 3 from the drum surfaces covered with the resin film and the position of scrapers a housing 12 for enclosing all the above constituting elements, and a means 5 for collecting the solvent vapor in the housing.</p> |
