Flow characteristics of chemical pulp suspension as functions of pulp properties and process parameters

化学纸浆悬浮液的流动特性与纸浆特性和工艺参数的函数关系

• 批准号: 485067-2015
• 负责人: Ni, Yonghao
• 金额: $ 3.39万
• 依托单位: University of New Brunswick
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=584700
• 关键词: Flow; characteristics; chemical; pulp; suspension

This collaborative research project will be undertaken by the partnership of Dr. Yonghao Ni (applicant), Dr. Mark Martinez (co-applicant), and Domtar Inc. The overall objectives are: 1) to investigate the flow characteristics of kraft pulp suspensions at different conditions; and 2) to determine relation of the pulp suspension fundamentals to the occurrence of fiber plugging in pipelines, and furthermore, to develop cost-effective solutions for de-plugging at pulp mills. The Canadian pulp and paper industry is facing strong international competition. Decreasing the overall manufacturing cost will help Canadian pulp and paper companies to remain competitive at the international stage. The results from the project will be beneficial not only to the industrial partner, Domtar, but also to other Canadian pulp and paper companies. Therefore the proposed program is of direct relevance to Canada. The project details/ deliverables include: 1) To investigate the pulp properties such as degree of cooking (degree of delignification) on the occurrence of pipeline blockage of pulp flows; 2) To determine the fundamentals, including the yield stress, permeability of pulp fiber suspension, as a function of pulp properties; 3) To develop practical and cost-effective methods to minimize the occurrence of pipeline blockage at pulp mills; 4) To model the effect of operating parameters and pulp properties on the flow characteristics of pulp suspensions, and the potential plugging of pulp fibers. The practical importance of this project is to understand the fiber suspension plugging in the pulp manufacturing processes, and ultimately resolve this plugging, which will lead to decreased manufacturing costs of the chemical pulp production by minimizing the unplanned downtime of the process.

该合作研究项目将由倪永浩博士(申请者)、Mark Martinez博士(共同申请者)和Domtar Inc.共同实施，总体目标是：1)研究不同条件下硫酸盐纸浆悬浮液的流动特性；2)确定纸浆悬浮液的基本原理与管道中纤维堵塞的发生之间的关系，并进一步开发用于纸浆厂解堵的经济高效的解决方案。 加拿大制浆造纸业面临着激烈的国际竞争。降低总体制造成本将有助于加拿大纸浆和造纸公司在国际舞台上保持竞争力。该项目的结果将不仅有利于工业合作伙伴Domtar，也将有利于其他加拿大纸浆和造纸公司。因此，拟议的方案与加拿大直接相关。 项目详情/交付成果包括： 1)研究蒸煮程度(脱木素程度)等纸浆性质对纸浆流动管道堵塞的影响； 2)确定纸浆纤维悬浮液的基本特性，包括屈服应力和渗透性，作为纸浆性能的函数； 3)发展实用和具成本效益的方法，以尽量减少纸浆厂管道堵塞的发生； 4)模拟了操作参数和纸浆性质对纸浆悬浮液流动特性的影响，以及纸浆纤维的潜在堵塞。 本项目的实际意义在于了解纸浆制造过程中的纤维悬浮堵塞问题，并最终解决这一堵塞问题，从而最大限度地减少工艺的意外停机时间，从而降低化学浆生产的制造成本。