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| 物料的物理特性直接决定烘干难度。高湿度物料如污泥，含有大量胶体水分，单纯热风烘干易出现“外干内湿”；而木屑等纤维类物料则需避免过度干燥导致的脆性断裂。某农业合作社处理果蔬残渣时，因未考虑物料的黏结性，初期使用普通滚筒机导致频繁结块，后期通过增加抄板角度和调整转速，才实现均匀脱水。对于含有机成分的物料，如有机肥原料，低温控湿是关键，否则活性物质会因高温失活，影响最终产品质量。
The physical properties of the material directly determine the difficulty of drying. High humidity materials such as sludge contain a large amount of colloidal moisture, and simple hot air drying can easily result in "external dryness and internal humidity"; Fiber materials such as sawdust need to avoid brittle fracture caused by excessive drying. When a certain agricultural cooperative was processing fruit and vegetable residues, due to the lack of consideration for the adhesive properties of the materials, frequent clumping was caused by the use of a regular drum machine in the initial stage. Later, uniform dehydration was achieved by increasing the cutting angle and adjusting the speed. For materials containing organic components, such as organic fertilizer raw materials, low temperature humidity control is key, otherwise the active substances will be deactivated due to high temperature, affecting the quality of the final product. |