| 摘要 |
<p>The present invention relates to a method and apparatus for heating pulps, in which method low-pressure steam is supplied into the pulp flowing as a plug flow in such a way that in the flowing direction of the pulp, before supplying the low-pressure steam, the pulp is pressurized in such a way that the pulp pressure at the point of the supply of steam is lower than the pressure of the available steam, and that after the supply of steam the pulp is mixed by means of a pressure-raising mixing means either to divide the steam evenly into the pulp and/or equalizing the temperature of the pulp.</p> |
