Lesson 1Paper machine parts: forming, press, drying, calendering basicsDis go detail di main parts of paper machine for woodfree types: forming, press, dryer, and calender. E go explain how water dey removed, how sheet dey made strong, moisture control, and finishing surface, connecting settings to paper qualities.
Headbox design and jet‑to‑wire ratioForming table drainage and retention aidsPress section loading and dewateringDryer section steam and hood controlCalendering impact on gloss and smoothnessLesson 2Common process tools and control parts (sensors, valves, SCADA)Dis introduce key field tools, control valves, and automation layers wey dey use in pulp and paper mills. E go explain basic control loops, roles of DCS and SCADA, and how instrumentation dey support safety, quality, and efficiency.
Level, pressure, flow, and consistency sensorsControl valve types and sizing basicsPID control loops and tuning conceptsDCS architecture and operator interfacesSCADA, alarms, and data historian useLesson 3Stock preparation: refiners, screens, cleaners, mixing and dilution controlDis explore stock preparation for printing and writing papers, including refining theory, screening and cleaning systems, mixing, and dilution control. E go highlight effects on strength, formation, drainage, and machine stability.
Refining mechanisms and fiber developmentPrimary and secondary screening systemsCentrifugal cleaners and heavy reject handlingConsistency control and dilution profilingWet end additives and mixing strategiesLesson 4Water and steam balance in a paper millDis explain how water and steam dey move through paper mill, from intake and treatment to returning condensate. Focus dey on heat integration, specific use, pinch points, and effects on cost, emissions, and reliability.
Fresh water intake and treatment stepsProcess water loops and closure levelsBoiler house and steam generation basicsCondensate recovery and flash steam useWater, steam, and energy performance KPIsLesson 5Raw material handling: wood logistics, debarking, chippingDis cover di front part of di value chain: getting wood, transport, storage, removing bark, and chipping. E go stress chip quality measures, handling bark, and how changes in raw material affect pulping and paper quality.
Wood sourcing, species mix, and contractsLog yard layout and inventory managementDebarking technologies and bark disposalChipping systems and chip size controlChip screening, storage, and homogenizationLesson 6Recycled fiber handling and deinking basicsDis cover sourcing, sorting, and preparing old paper, then deinking principles for graphic papers. Focus include contaminants, unit operations, yield, brightness, and how quality of deinked pulp affect paper machine running.
Recovered paper grades and specificationsContaminant types and removal strategiesPulping, screening, and cleaning stagesFlotation deinking and washing principlesDeinked pulp quality control and testingLesson 7Chemical pulping basics: kraft process and kraft recoveryDis introduce kraft pulping chemistry and operation, including cooking reactions, liquor cycles, and fiber properties. E go explain recovery boiler, causticizing, and recausticizing, highlighting energy generation and chemical closure.
White liquor composition and active alkaliDigester operation and kappa number controlBrownstock washing and filtrate handlingRecovery boiler combustion and smeltCausticizing, lime kiln, and chemical balanceLesson 8Finishing operations: rewinding, cutting, coating optionsDis describe finishing steps after paper machine, including handling reel, rewinding, sheeting, and optional coating off machine. E go address removing defects, roll quality, packaging, and how finishing fit products for customers.
Parent reel handling and storage safetyRewinder operation and defect managementSheeting, ream formation, and packagingOff‑machine coating types and functionsFinished product inspection and labelingLesson 9Overview of uncoated woodfree paper production flowDis introduce di integrated process for uncoated woodfree paper, linking pulp supply, stock preparation, paper machine parts, and finishing. Emphasis dey on material flows, key equipment, quality controls, and main cost and energy drivers.
Process block diagram and main unit operationsFiber, water, and energy flow interactionsTypical mill layout and logistics interfacesKey quality parameters and product gradesMajor cost centers and efficiency leversLesson 10Bleaching sequence ideas and environmental limitsDis present bleaching goals, sequences, and stage functions for kraft pulps, along with environmental limits. E go discuss ECF and TCF ideas, AOX reduction, chemical optimization, and effluent treatment connections.
Brightness targets and pulp cleanlinessCommon bleaching stages and notationECF, TCF, and oxygen delignificationChemical consumption and cost controlBleach plant effluents and AOX limits
