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Bubbling fluidized bed (BFB) boiler at Heinola, a case study

The bubbling fluidized bed boiler in Heinola is over 30 years in service and still going strong.

Controlling sulfidity in a modern kraft pulp mill, case study

Creating valuable side streams from the kraft pulping process can disturb the sodium sulfur balance. Valmet has expanded the sulfidity control toolbox with a process to oxidize sulfur containing CNCGs to relatively concentrated sulfuric acid. A white paper describes the first full-scale plant using this process.

Improve safety at your boiler with a furnace inspection camera

Maintaining safe, efficient and environmentally compliant boiler operations is very important. Valmet's Mobile Furnace Inspection Camera System improves the boiler operation decision-making process.

Valmet Calender Roll Cover CL-EC for extreme calendering

Under extreme conditions, when load and speed are high and cover durability is tested, special covers are needed. The Valmet Calender Roll Cover CL-EC (extreme conditions) is designed to increase heat dissipation from dynamic loading and resist barring and wear.

Valmet Steam Separator PV saves energy at BHW Beeskow, case study

Installing a Valmet Steam Separator PVmechanical steam separator at BHW Beeskow Holzwerkstoffe fiberboard plant after the Defibrator allowed 1.4MW/h more electricity to be produced in their steam turbine.

Super fast slitter positioning system in only five seconds!

Positioning takes very little time. The significantly shorter positioning time benefits paper and board production lines by minimizing winder downtime and increasing winder capacity and availability.

Valmet composite cover for wire, felt and paper lead rolls

Valmet Lead Roll Cover GC composite cover for wire, felt and paper lead rolls features long service life due to good wear and chemical resistance.

Planning roll maintenance yields the best uptime and efficiency

Operating machines at high speeds, longer operation periods between shutdowns and higher operating efficiency requires a planned roll maintenance policy.

Instructions for safely taking and using calender nip impressions

Nip impressions are usually taken at installation or to investigate causes for poor paper quality. Taking nip impressions is dangerous if not performed correctly, and should only be done by trained personnel.

Measuring wound-in tension - WIT-WOT and gap test methods

Among the most important factors determining the quality of a finished paper roll is consistent roll structure. Wound-in tension is the most important component of roll structure. The WIT-WOT and Gap Test are methods of measuring wound-in tension.