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三、洗涤滤渣所需的时间1.小引当分出母液过程的两个阶段进行完了後,虽然转鼓内滤渣层孔道中已经没有母液可以再被分出,但是滤渣粒子上却仍包覆着极薄的母液层。如果就这样由离心机中卸出,就会影响所分得滤渣的质量,或者会减少母液中有用成分的回收率。因此,一般在要求比较严格的情况下,就有必要在分出母液过程完了後,向转鼓中加水洗涤滤渣,从而使母液膜减薄或者改变其成分,以便更符合於工艺要求。洗涤滤渣,就其机理来看,也是液体(洗液)流经滤渣层内的孔道而被分出的过程。2.洗涤滤渣过程的特点计算洗涤滤渣过程所需的时间,可以利用前述基本公式(9)。式中i及F皆可按当时具体情况加以计算,但在应用时,有若干特点必须
Third, the time required to wash the residue 1. Small lead When the separation of the mother liquor two stages of the process is completed, although the filter drum drum within the mother liquor can no longer be separated, but the filter particles are still covered with Very thin mother liquid layer. If it is discharged from the centrifuge in this way, it will affect the quality of the obtained residue, or will reduce the recovery of the useful components in the mother liquor. Therefore, in general, when the requirement is relatively strict, it is necessary to add water to the drum to wash the residue after the mother liquor separation process is finished, so that the mother liquor film is thinned or the composition is changed so as to be more in line with the process requirements. Washing residue, on the mechanism of view, but also the liquid (lotion) through the pores within the filter residue layer was separated from the process. 2. Characteristics of the process of washing residue Calculate the time required to wash the residue, you can use the basic formula (9). Where i and F can be calculated according to the specific circumstances, but in the application, there are several characteristics must