| 摘要 |
<p>Concentration and hot-air drying plant comprising a concentration unit including a heating steam path having its outlet optionally connected to a condenser a hot-air drying unit supplied with hot air from a feed path comprising means for drawing air from the external atmosphere and means for heating the air thus drawn and heating the same to a predetermined temperature, a heat exchanger having an air path disposed in series in the air feed path of the drying unit, upstream of the heating means, and a steam path supplied with steam from the heating steam path of the concentration unit.</p> |
