Energy Saving II
Energy-Saving by Introduction of High Efficiency Refiner for RGP
—Energy-Saving Examples by Low Speed Refiner—
2005 Volume 59 Issue 6 Pages 825-830
Details
2005 Volume 59 Issue 6 Pages 825-830
With recent rise of market demand for environmental protection and saving resources, Nippon Paper Industries Iwanuma Mill has set up an environmental action plan concerning “the achievement of sustainable society.”
This mill produces 55,000t of paper mainly newsprint per month based on this environmental action plan. Our newsprint contains kraft pulp, recycled pulp, and mechanical pulp as main materials resulting 75% or more of recycled pulp, 5-10% of kraft pulp (NBKP), and the remaining is mechanical pulp which is produced on site as RGP (Refining-GroundWood-Pulp).
Mechanical pulp, such as RGP, is pulp which needs an enormous amount of electric power as a feature of its production. However, power consumption was greatly reduced through repeated reconstructions, including stock flow change and introduction of new equipment.
This report describes a series of energy-saving examples achieved by reconstruction of RGP process.
