Lesson 1Glass handling and cullet separation: breakers, screens, and glass-specific conveyorsDis part cover glass handling from when e land to cullet separation. E go explain breakers, screens, and glass-only conveyors, with focus on particle size, removing small bits and dirt, and cutting down wear, dust, and noise.
Glass breaker types and impact on fragment sizeScreens for cullet sizing and fines removalGlass-only conveyors and chute designManaging ceramics, stones, and residual metalsWear protection, dust, and noise controlLesson 2Screening and classification: trommels, vibrating screens, ballistic separatorsDis part cover screening and classification machines wey separate materials by size and shape. E go explain trommels, vibrating screens, and ballistic separators, including how dem work, usual cut sizes, and wetin dem need for maintenance.
Trommel design, speed, and aperture selectionVibrating screens and stroke adjustmentsBallistic separators for 2D and 3D splitsManaging fines, wrapping, and blindingInspection, cleaning, and wear monitoringLesson 3Optical sorting and near-infrared (NIR) systems: capabilities, limitations, and typical placementsDis part go look optical and NIR sorting systems for plastics, paper, and other recyclables. E cover how dem detect, ejection parts, calibration, limits with dirt or water, and where dem usually fit for di process line.
NIR detection of polymers and paper gradesColor cameras and combined sensor platformsAir jets, valves, and ejection timingEffects of moisture, dirt, and overlappingTypical placements after screening or sizingLesson 4Magnetic and eddy-current separation: ferrous and non-ferrous removal principles and placementDis part explain how magnetic and eddy-current separators take out iron and non-iron metals. E cover how dem work, design choices, where to put dem for line, and key settings wey affect recovery and purity.
Ferrous capture with overband and drum magnetsEddy-current rotor design and operating principleSeparator placement relative to shredders and screensKey settings: belt speed, splitter, and burden depthMaintenance, wear points, and safety precautionsLesson 5Truck unloading and tipping floor operationsDis part describe truck unloading and tipping floor work for dry recycling places. E tackle traffic flow, safety areas, loader patterns, contamination check, and how storage and feeding affect di next stages steady.
Traffic flow, signage, and safety proceduresTipping floor layout and storage strategiesLoader operation, stockpiling, and mixingIncoming load inspection and contaminationHousekeeping, fire risk, and incident responseLesson 6Size reduction equipment: shredders, hammer mills, crushers, granulators — working principles and settingsDis part explain size reduction machines wey dem use before sorting or baling. E compare shredders, hammer mills, crushers, granulators, with focus on cutting ways, screen choice, energy use, and controlling final particle size.
Single-shaft and twin-shaft shredder functionsHammer mill impact action and grate selectionCrushers for rigid containers and bulky itemsGranulators for plastics and uniform particlesEnergy, wear parts, and oversize controlLesson 7Conveying and material flow: conveyor types, transfer points, speed controlDis part check conveyor types and material flow control for dry recycling plants. E cover belt, chain, roller conveyors, transfer points design, speed control, reducing spillage, and how routing affect uptime and safety.
Belt, chain, and roller conveyor selectionTransfer chutes, skirting, and spillage controlSpeed control, VFDs, and throughput tuningInclines, declines, and material rollbackGuarding, walkways, and lockout pointsLesson 8Ancillary systems: dust extraction, air knives, water sprays (if any), control panels and SCADA basicsDis part review support systems wey make safe and steady operation. E include dust extraction, air knives, water sprays if dem use am, and control panels with basic SCADA for monitoring, alarms, and data logging.
Dust extraction hoods, ducts, and filtersAir knives for label and light fraction removalWater sprays for dust and fire risk controlLocal control panels and emergency stopsSCADA screens, alarms, and trend loggingLesson 9Primary feeding systems: hoppers, apron feeders, vibratory feedersDis part introduce primary feeding systems wey carry material from storage to processing line. E compare hoppers, apron feeders, vibratory feeders, showing flow control, bridging risks, wear, and how dem fit with controls.
Hopper design, live capacity, and bridging risksApron feeders for heavy and abrasive loadsVibratory feeders for metering and spreadingLevel sensors and interlocks for safe feedingWear liners and maintenance access designLesson 10Baling and densification: balers, compactors, and bale quality considerationsDis part detail balers and compactors wey densify sorted recyclables. E tackle bale formation, tying systems, bale quality standards, and how steady feed, moisture, settings affect density, safety, and market value.
Horizontal versus vertical balers in MRFsCompactors and pre-compaction strategiesBale density, dimensions, and weight targetsContamination limits and bale quality specsWire tying, safety, and bale handling
