OPTIMIZING EUCALYPTUS PULP REFINING

编号 zgly0000332865

文献类型 期刊论文

文献题名 OPTIMIZING EUCALYPTUS PULP REFINING

学科分类 220.5570;林产化学加工学

作者 VailManfredi 

作者单位 BahiaSulCeluloseS.A.Brazil 

母体文献 天津科技大学学报 

年卷期 2004,19(A01)

页码 41-50

年份 2004 

分类号 TS74 

关键词 最优化  桉树  精练  BEKP  牛皮纸浆  稠度 

文摘内容 This paper discusses the refining of bleachedeucalyptus kraft pulp (BEKP).Pilot plant tests were carded out in to optimize therefining process and to identify the effects of refiningvariables on final paper quality and process costs.The following parameters are discussed: pulpconsistency, disk pattern design, refiner speed,energy input, refiner configuration (parallel or serial)and refining intensity.The effects of refining on pulp fibers were evaluatedagainst the pulp quality properties, such as physicalstrengths, bulk, opacity and porosity, as well as theinteractions with papermaking process, such as papermachine runnability, paper breaks and refiningcontrol.The results showed that process optimization,considering pulp quality and refining costs, wereobtained when eucalyptus pulp is refined under thelowest intensity and the highest pulp consistencypossible. Changes on the operational refiningconditions will have the highest impact on totalenergy requirements (costs) without any significanteffect on final paper properties.It was also observed that classical ways to control theindustrial operation, such as those based on drainagemeasurements, do not represent the best alternative tomaximize the final paper properties neither the papermachine runability。