论文部分内容阅读
本文介绍了在旧报纸浆脱墨时将比边界负荷应用于鉴定油墨分散的研究进展。盘式分散机用于废纸回用系统的作用是使纤维上的油墨剥离,并研细油墨粒子。油墨粒子的大小要达到检定限度即50μm以下。实验用了锥形齿型板的盘磨机,研究了旧报纸在浆浓分别为10%、20%和30%,转子转速为1750和2500rpm以及缝宽在0.5、1和2mm条件下的分散情况。分散率是用未洗浆和经充分洗涤浆浆样的ERIC值来测量。分散机是在一定的比能耗和比边界负荷条件下进行的。结果表明,在2500rpm时充分洗涤浆在能耗增加到40kWh/t时,它的ERIC下降了,在1750rpm时,ERIC也降低了,但不会达到相同的水平,这归因于分散强度(以边界负荷表达)即从2500rpm时的0.16W.s/m下降到了1750rpm时的0.08W.s/m。
This article describes the research progress of applying the specific loading to the identification of ink dispersion in deinking of old newspapers. Disc Dispersers The purpose of the discarding system for waste paper recycling is to peel the ink from the fibers and to finely coat the ink particles. Ink particle size to achieve the test limit that is 50μm or less. Experiments were carried out with a disc-shaped cone disc mill to study the dispersion of old newspapers at pulp thicknesses of 10%, 20%, and 30% respectively, rotor speeds of 1750 and 2500 rpm, and slit widths of 0.5, 1 and 2 mm Happening. Dispersion rates are measured with unwashed and well-washed pulp-like ERIC values. Dispersers are operated at a specific specific energy and load ratio. The results show that at 2500 rpm, sufficient detergent slurry reduces its ERIC at energy consumption up to 40 kWh / t and decreases ERIC at 1750 rpm but does not reach the same level due to the dispersion strength Boundary load expression) is reduced from 0.16 Ws / m at 2500 rpm to 0.08 Ws / m at 1750 rpm.