| 摘要 |
According to the invention, on drying paste-like materials, in particular, clarifier sludge, the material is previously compacted to a dry weight in the range 60 80 % in a drying intermediate stage, such that a relatively low energy requirement results. The transport of the material, both during the pre-drying and after leaving the compacting device (5), is by means of one or two transport belts (3, 4) which are arranged in series in the direction of transport, which permit the through-flow of air and which are enclosed in a common housing (2). As a result, the drying occurs under the same conditions before or after compacting, such that a plant for carrying out the above is easy and thus economical to install. The end product has advantageous properties with regard to density and friability, such that on subsequent handling the development of dust is avoided.
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