An instructional diagram shows a person in a face shield and gloves unloading biochar from a horizontal retort kiln into bins. Labels indicate cooling and finished product.

Prompt: Scene 4 — Cooling & Char Removal (Gemini Full Engineering Version) Create a 3D instructional scene showing the cooling and unloading phase of a 10-foot propane-fired steel retort kiln for biochar production. The kiln is horizontal, ¼-inch steel, supported on cinder blocks with two propane burners beneath (now off). The metal body is dark gray with faint residual red glow near the bottom edges, indicating residual heat. The six vent ports on the lid are closed and sealed, and a 6-inch exhaust pipe at the right end releases a thin wisp of pale blue smoke. Add clear labels: Cooling Phase – Oxygen Restricted. Scene layout and action: Operator wearing gloves and face shield stands near the right side. A thermometer on the side shows the temperature gradually dropping from 400 °C to below 150 °C. Include subtle ambient lighting showing dusk outside or cooler tone inside workshop. Show a time-lapse effect of the metal changing color from dull red to dark gray. Next shot: Operator opens the lid using a steel hook. Light steam and faint smoke escape. Inside, black, shiny, uniform biochar fills the chamber. Label the material Finished Biochar – Cooled and Stable. Operator uses a shovel to load char into labeled metal bins for storage. Final shot: Wide view of the full setup with burners off, sealed propane valves, clean workspace, and stacked bins of finished biochar. Add final on-screen text: Batch Complete – Cooling and Unloading. Use bright, even lighting and clear part See more