Lesson 1Glass handling and cullet separation: breakers, screens, and glass-specific conveyorsDis part dey cover glass handling from when e land to cullet separation. E 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 dey cover screening and classification machines wey separate materials by size and shape. E explain trommels, vibrating screens, and ballistic separators, including how dem dey run, 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 dey look at optical and NIR sorting systems for plastics, paper, and oda recyclables. E cover how dem dey 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 dey explain how magnetic and eddy-current separators dey take out iron and non-iron metals. E cover how dem dey work, design choices, where to put dem for line, and key tin-tin 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 dey describe truck unloading and tipping floor work for dry recycling places. E talk about traffic flow, safety areas, loader patterns, checking for dirt, and how storage and feeding dey affect di next parts 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 dey 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, power 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 dey check conveyor types and material flow for dry recycling plants. E cover belt, chain, roller conveyors, transfer points design, speed control, reducing spillage, and how routing dey 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 dey 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 dey show 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 dey detail balers and compactors wey densify sorted recyclables. E talk bale formation, tying systems, bale quality, and how steady feed, moisture, settings dey 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
