| 摘要 |
This plant comprises a continuous digester 10 in which a fibrous material is cooked with a cooking lye while passing steam into the top of the digester where the fibrous material and the lye flow in continuously and are separated, the cooking lye being recycled and the fibrous material falling down to a level which is maintained. The problem posed consists in avoiding an external input of steam resulting in a dilution of the cooking lye. According to the invention, a part of the cooking lye 22 is extracted from the digester 10, its destination being a steam converter 30 with a view to the production of steam 16 at a pressure and a temperature which are suitable for an addition at the feed end of the digester in order to raise the fibrous material introduced to the desired temperature. The invention finds an advantageous application in cellulose cooking plants. <IMAGE> |
