| 摘要 |
<p>A method and apparatus for producing a dried material (20) from a mixture of solid particles colloidally suspended in a liquid, for example, for the production of fruit leather from a pulp and fruit juice mass, include floating an infrared-transparent film (18) on the surface of a body of heated water (14) and placing the material to be dried, such as a pulp and juice mix, on top of the film to absorb heat from the water and thereby cause drying of a material. The apparatus for carrying out the method includes a reservoir of water (14), a film floated on the water (18), and a heater (15) for maintaining the temperature of the water at a predetermined level. In a preferred embodiment, the reservoir is in the form of an elongated trough (10) and the film comprises an endless strip of polyester material, such as Mylar, to form a conveyor belt that floats on the surface of the water in the trough and carries the material to be dried on it.</p> |
