Development and optimisation of disk filter for high consistency paper stock dewatering and fiber recovery

用于高浓度纸料脱水和纤维回收的盘式过滤器的开发和优化

• 批准号: 515547-2017
• 负责人: Parenteau, MarioM
• 金额: $ 5.46万
• 依托单位: Cégep de Trois-Rivières
• 依托单位国家: 加拿大
• 项目类别: Applied Research and Development Grants - Level 2
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=757445
• 关键词: Development; optimisation; disk; filter; consistency

The last 10 years have seen an important shift in the production of papers and boards in Canada. The sharpdemand decline for printing and writing grades lead to several mill closures but the tissue and packagingsectors of the industry rather see a strong and persistent increase in demand. The industry must also face thechallenge of reducing energy and water consumption while increasing the quality of its products. There is thusa strong industrial need for efficient equipment, both to first prepare the pulp and then produce the requiredpaper and board grades.Kadant is a leading supplier of stock preparation and approach flow systems designed to produce high-qualitywhite and brown paper grades, with extended expertise in the use of recycled fiber pulps. The company startedthe development of a disk filter that can process a fiber slurry with a high solid proportion (high consistency).Innofibre plays a leading role in this development. A pilot scale unit of the disk filter, specially designed fordevelopment work, is located at Innofibre and joint efforts by Kadant and Innofibre already led to significantadvances.The goal of the present research proposal is to pursue the development of the disk filter in the modern contextof the pulp and paper industry. This project will first focus on white water fiber recovery and then further thedevelopment of the disk filter to the thickening of relatively high consistency pulp (larger than 1 % in solidcontent). These objectives are in line with recent shifts in the Canadian pulp and paper industry towards theproduction of linerboard and the increased mill production capacity, both phenomena requiring betterdewatering capacity and water recycling.

在过去的十年中，加拿大论文和董事会的生产发生了重要变化。印刷和写作等级的急剧下降导致了几个工厂的关闭，但是该行业的组织和包装器却看到需求的强劲而持久。该行业还必须面对减少能源和用水量的挑战，同时提高其产品质量。因此，对高效设备有强大的工业需求，既要首先准备纸浆，然后生产所需的纸张和板等级。Kadant是库存制备和进型流量系统的领先供应商，旨在生产高质量的和牛皮纸等级，并具有扩展的专业知识，并在使用再生纤维纸浆方面。该公司启动了磁盘过滤器的开发，该磁盘过滤器可以处理具有较高固体比例的纤维浆液（高稠度）。Innofibre在这一开发中起着主要作用。磁盘过滤器的试验量表单位是专门设计的福特开发工作，位于Innofibre，Kadant和Innofibre的联合努力已经导致了重要的吸引力。本研究建议的目的是追求纸浆和纸浆和纸质行业现代环境中磁盘过滤器的开发。该项目将首先关注白水纤维恢复，然后将磁盘过滤器进一步开发到相对较高的一致性纸浆的增厚（大于固体结构中的1％）。这些目标与加拿大纸浆和造纸工业最近向衬板的生产和提高的磨坊生产能力的转变保持一致，这是需要更好地养成能力和水回收利用的现象。