| 摘要 |
PURPOSE:To permit long term continuous operation with an adhesive liquid to be treated by feeding the liquid while varying periodically and always the feed quantity of the liquid to a dryer by a minute degree. CONSTITUTION:The feed quantity of a liquid 2 to be treated is set previously corresponding to the property of the liquid, which is stored in a storage device 6. A control valve 4 is operated so as to cause minute periodical variation in the feed quantity of the liquid from the start of the operation continuously. By this method, solid materials adhered to a heat transmitting surface and rotating blades 13 move gradually downward. Accordingly, adhesion of the solid materials is not caused concentratedly to a part of the heat transmitting surface and the rotating blade 13, so deterioration of heat transmitting performance and imbalance of the rotating blade 13, etc. are prevented. Thus, a long term continuous operation of an adhesive liquid is permitted. |
