黑液加热处理──改善非木材纤维黑液的蒸发和燃烧性能

Improvement of Evaporation and Combustion Properties of Spent Liquor From Cooking of Annual Plants

讨论了黑液加热处理对芦苇硫酸盐浆和麦草碱法浆黑液的影响。试验采用工厂的黑液，黑液热处理有效地降低了这两种黑液的粘度，在相同２００ｍＰａｓ的粘度值，处理后的芦苇硫酸盐浆黑液固形物含量增加了约１０％，而麦草碱黑液增加了近１５％。增加黑液固形物含量可明显提高碱回收锅炉的生产效率，根据计算的结果，锅炉生产能力可增加１３％。

This paper discusses the effect of the LHT on the viscosity of reed kraft and wheat straw soda spent liquor.Mill liquors were used for these laboratory tests. The viscosities of both liquors decreased significantly during heat treatment. The solids content corresponding to a viscosity value of 200 mpas has increased about 10 percentage units with reed kraft liquor and nearly 15 percentage units with wheat straw soda liquor.Increase in strong liquor dry solids improves the efficiency of the recovery boiler. In our calculation case, the efficiency of the boiler increased 13 percentage units.