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对核级除碘活性炭的浸渍与干燥工艺进行了研究。在负压工艺条件下浸渍、干燥活性炭,并与常压下的工艺进行了比较。试验数据表明:负压下浸渍更有利于活性炭对浸渍剂的吸收,浸渍试剂损失小,负压下对活性炭的干燥效率高于常压下的效率。最终确定了一种适用于大批量生产浸渍颗粒活性炭的浸渍与预干燥生产工艺,为研究开发规模化浸渍活性炭真空浸渍与预干燥生产设备提供了设计依据。
The impregnation and drying technology of nuclear grade iodine removal activated carbon was studied. Under negative pressure process conditions impregnated, dried activated carbon, and compared with atmospheric pressure process. The experimental data show that the impregnation under negative pressure is more conducive to the absorption of impregnation agent by activated carbon, and the loss of impregnation reagent is small. The drying efficiency of activated carbon under negative pressure is higher than that under normal pressure. Finally, an impregnation and pre-drying production process suitable for mass production of impregnated granular activated carbon is finally established, which provides a design basis for the research and development of large-scale impregnation and pre-drying production equipment for activated carbon.