Energy and Water Savings from the Paper Machine Saveall, 2006 Papermaker’s Conference
Improving efficiency of the paper machine saveall reduces energy, material and water costs per ton of finished paper. Saveall efficiency is related to both capacity to filter excess paper machine white water and quality of clear filtrate obtained for showers and effluent from the paper machine loop. Key factors for saveall efficiency include installation parameters such as size and dropleg design, operating conditions such as feed properties and shower efficiencies, and maintenance conditions of sector covers and seals. This paper describes how to estimate energy, material and water savings, and how to implement a saveall audit and improvement program.