Improving disk filter design for better operational flexibility and increased capacity

改进盘式过滤器设计，提高操作灵活性并提高容量

• 批准号: 570916-2021
• 负责人: Parenteau, Mario
• 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: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=725002
• 关键词: Improving; disk; filter; design; better

The disk filter is an essential component of a paper mill. Its dewatering and filtration actions reduce the space needed to store the pulp as well as water consumption. Much like the paper industry, the disk filter design and operational conditions must reflect the changing production framework of the industry. The overall shift from writing and printing to packaging grades, combined with an increased use of recycled fibres necessitates an increase in the operational window of the disk filter and an ability to treat high freeness pulps. Further water consumption reduction efforts also require the disk filter to accept pulp at higher consistency than what is presently the case. Kadant is a leading supplier of stock preparation and approach flow systems designed to produce high-quality white and brown paper grades, with extended expertise in the use of recycled fiber pulps. The company started the 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 for this kind of development work, is located at Innofibre and joint efforts by Kadant and Innofibre already led to significant design improvements with respect to the original design. In particular, Innofibre reached an essential milestone when it operated the filter disk at a flow input close to 100 odmt/day/disk. Another success of the joint research and development work was the design of a side-injector to increase the disk filter capacity for high-consistency input pulp. Kadant wishes to pursue the development of the disk filter with Innofibre. The overall goal of the present research and development proposal is to increase the operational flexibility of the disk filter in the modern context of the pulp and paper industry.

磁盘过滤器是造纸厂的重要组成部分。它的脱水和过滤动作减少了储存纸浆和用水所需的空间。与纸质行业一样，磁盘过滤器的设计和操作条件必须反映出该行业的生产框架的变化。从写作和打印到包装等级的总体转变，加上增加的再生纤维使用，必须增加磁盘过滤器的操作窗口，并具有治疗高发果的能力。进一步的减少水量减少工作还需要磁盘过滤器以比目前的果态更高的一致性接受纸浆。 Kadant是库存制备和进型流程系统的领先供应商，旨在生产高质量的白皮书和牛皮纸等级，并具有扩展的专业知识，可用于使用再生纤维纸浆。该公司开始开发磁盘过滤器，该磁盘过滤器可以处理具有较高固体比例（高稠度）的纤维浆液。 Innofibre在这一发展中起着领导作用。专为此类开发工作设计的磁盘过滤器的试验量表单元位于Innofibre，Kadant和Innofibre的共同努力已经导致了有关原始设计的显着改进。特别是，当Innofibre以接近100 ODMT/天/磁盘的流量输入操作过滤器磁盘时，它达到了必不可少的里程碑。联合研究和开发工作的另一个成功是设计副注射器，以提高磁盘过滤器的能力，以提高高频性输入纸浆。 Kadant希望用Innofibre追求磁盘过滤器的开发。本研究和开发计划的总体目标是在纸浆和造纸工业的现代背景下提高磁盘过滤器的运行灵活性。