Lesson 1Paper machine parts: forming, pressing, drying, and basic calenderingThis lesson details the key sections of the paper machine for woodfree paper types: forming, pressing, drying, and calendering. It explains how water is removed, the sheet is strengthened, moisture is managed, and the surface is finished, showing how machine settings affect paper qualities.
Headbox setup and jet-to-wire speed differenceForming table water removal and retention chemicalsPress section pressure and water squeezingDryer section steam and hood temperature controlCalendering effects on shine and evennessLesson 2Common tools for process monitoring and control: sensors, valves, SCADAThis lesson introduces important field instruments, control valves, and automation systems used in pulp and paper factories. It explains simple control loops, the roles of DCS and SCADA, and how these tools help with safety, quality, and better efficiency.
Sensors for level, pressure, flow, and thicknessTypes of control valves and basic sizingPID control loops and adjustment ideasDCS setup and operator screensSCADA, alarms, and data recording usesLesson 3Preparing stock: refiners, screens, cleaners, mixing and water controlThis lesson looks at preparing stock for printing and writing papers, including how refining works, screening and cleaning setups, mixing, and controlling water addition. It highlights effects on paper strength, evenness, water drainage, and machine steadiness.
How refining works and fiber improvementMain and extra screening systemsCentrifugal cleaners and heavy waste managementThickness control and water addition patternsWet end chemicals and mixing methodsLesson 4Water and steam flow in a paper factoryThis lesson explains how water and steam move through a paper factory, from taking in and treating water to returning condensate. It focuses on heat sharing, water and steam use per tonne, key pinch points, and effects on costs, pollution, and reliability.
Fresh water intake and treatment processesProcess water cycles and closure degreesBoiler room and steam making basicsCondensate collection and flash steam useWater, steam, and energy key performance measuresLesson 5Handling raw materials: wood transport, bark removal, chippingThis lesson covers the start of the production chain: getting wood, transporting it, storing, removing bark, and chipping. It stresses chip quality factors, bark management, and how changes in raw materials affect pulping and final paper quality.
Wood sources, types of trees, and supply agreementsLog yard design and stock controlBark removal methods and waste handlingChipping machines and chip size managementChip sorting, storage, and blendingLesson 6Handling recycled fibre and basic deinkingThis lesson covers getting, sorting, and preparing used paper, then basic deinking for printing papers. It focuses on dirt types, process steps, yield, whiteness, and how cleaned pulp quality affects machine running smoothness.
Types and specs of used paperKinds of dirt and removal waysPulping, screening, and cleaning stepsFlotation deinking and washing basicsQuality checks and tests for deinked pulpLesson 7Basics of chemical pulping: kraft process and recoveryThis lesson introduces kraft pulping chemistry and operations, including cooking reactions, liquor cycles, and fibre qualities. It explains the recovery boiler, lime making, and reliming, stressing energy production and chemical recycling.
White liquor makeup and active alkaliDigester running and kappa number controlBrown stock washing and liquid handlingRecovery boiler burning and smeltLime making, kiln, and chemical balanceLesson 8Finishing steps: rewinding, cutting, coating optionsThis lesson describes steps after the paper machine, like handling big reels, rewinding, cutting to sheets, and optional coating off-machine. It covers removing faults, roll quality, packing, and how finishing fits products to buyer needs.
Handling and storing big reels safelyRewinder running and fault handlingSheeting, bundle making, and packingOff-machine coating kinds and usesChecking and labelling finished productsLesson 9Overview of making uncoated woodfree paperThis lesson introduces the combined process for uncoated woodfree paper, connecting pulp supply, stock prep, paper machine parts, and finishing. It stresses material flows, main machines, quality controls, and big cost and energy factors.
Process flow chart and main stepsFibre, water, and energy flow linksTypical factory layout and transport linksKey quality measures and paper typesMain cost areas and efficiency controlsLesson 10Bleaching steps ideas and environment limitsThis lesson presents bleaching goals, sequences, and stage roles for kraft pulps, plus environment rules. It discusses ECF and TCF ideas, reducing AOX, chemical best use, and waste treatment connections.
Whiteness goals and pulp cleannessCommon bleaching steps and signsECF, TCF, and oxygen lignin removalChemical use and cost managementBleach plant waste and AOX limits
