| EVENT | Date | November 9 / 24 | ||||||||
| Description | Iron Smelting Course | |||||||||
| Goal | Test of Magnetite ore | |||||||||
| Team | Josh Koss (trained by Darrell) | lead | ||||||||
| Josh | extract | |||||||||
| Darrell | measures | |||||||||
| Spencer Ferral | ore | |||||||||
| Jaques Gallant | charcoal | |||||||||
| Spencer | hammer | |||||||||
| Jaques | hammer | |||||||||
| Darrell / Josh | records | |||||||||
| Darrell | photos | |||||||||
| FURNACE | Type | Short Saft on plinth | ||||||||
| Material | standard manure cob (1st mix old walls) | |||||||||
| Walls | 03-May | |||||||||
| OD | 33 - 29 | |||||||||
| ID | 23 | |||||||||
| at tuyere | 23 | |||||||||
| Height | 61 | |||||||||
| Stack | 40 | |||||||||
| Base | additional wood ash @ 4 cm | 13.5 | ||||||||
| Plinth | 1/2 concrete block | 19 | ||||||||
| Packing | charcoal fines | |||||||||
| Tuyere | forged copper | |||||||||
| ID | 2.5 | |||||||||
| Mounted | insert | |||||||||
| Angle | 20 | |||||||||
| Distance | 5 | |||||||||
| Air System | electric blower | |||||||||
| Extraction | bottom | |||||||||
| MATERIALS | Ore 1 | Gatenau Magnetite | 34.5 | (% Fe) | ?? | |||||
| Ore 2 | (type / weight) | |||||||||
| Tap Slag | 2 | |||||||||
| Gromps | NA | |||||||||
| Charcoal | tropical (Brazil) | 2.58 | ||||||||
| CLOCK | ELAPSED | RATE | EVENT | AIR | CHARCOAL | ORE | ||||
| set | UNIT | COUNT | TOTAL | Unit | TOTAL | |||||
| pressure | LpM | bucket | kg | kg | kg | |||||
| psi | 2.58 | |||||||||
| 1200 | start wood splints pre-heat (9:20 real) | |||||||||
| 1255 | 55 | gentle air | ||||||||
| 1305 | 10 | first rough charcoal | 800 | 1 | 1 | 2.58 | ||||
| 1310 | 5 | start to fill with rough charcoal | 0.00 | |||||||
| 1312 | top gasses ignite | |||||||||
| 1316 | 6 | finish fill to even bucket, probed to settle | 3 | 4 | 10.40 | |||||
| cracks at clay seams, wired to support | ||||||||||
| 1329 | 13 | probed to settle - start graded charcoal ? | 1 | 5 | 13.00 | |||||
| 1341 | 12 | 4.6 | 1 | 6 | 15.60 | |||||
| 1356 | 15 | 5.8 | (establish regular burn rate) | 1 | 7 | 18.20 | ||||
| 1412 | 16 | 6.2 | 1 | 8 | 20.80 | |||||
| 1427 | 15 | 5.8 | 1 | 9 | 23.40 | |||||
| NR | first slag addition | |||||||||
| 1443 | adjust air rate | 600 | ||||||||
| 1444 | 17 | 6.5 | ignited to top of furnace | 1 | 10 | 26.00 | 1S | 1S | ||
| slag shatters as added | ||||||||||
| 1505 | 21 | 8.1 | increase air | 700 | 1 | 11 | 28.60 | 1S | 2 S | |
| 1521 | 16 | 6.2 | first ore addition | 1 | 12 | 31.20 | 1 | 1 | ||
| 1536 | 15 | 5.8 | 1 | 13 | 33.80 | 1 | 2 | |||
| 1553 | 17 | 6.5 | 1 | 14 | 36.40 | 1 | 3 | |||
| 1606 | 13 | 5.0 | slightly heaped on fill | 1 | 15 | 39.00 | 1.5 | 4.5 | ||
| 1625 | 19 | 7.3 | 1 | 16 | 41.60 | 1.5 | 6 | |||
| 1640 | 15 | 5.8 | 1 | 17 | 44.20 | 1.5 | 7.5 | |||
| 1700 | 20 | 7.7 | 1 | 18 | 46.80 | 2 | 9.5 | |||
| 1718 | 18 | 6.9 | 1 | 19 | 49.40 | 2 | 11.5 | |||
| 1733 | 15 | 5.8 | 1 | 20 | 52.00 | 2 | 12.5 | |||
| 1753 | 20 | 7.7 | 1 | 21 | 54.60 | 2.5 | 15 | |||
| 1807 | 14 | 5.4 | 1 | 22 | 57.20 | 2.5 | 17.5 | |||
| 1826 | 19 | 7.3 | ore amount error | 1 | 23 | 59.80 | 1.5 | 19 | ||
| 1847 | 21 | 8.1 | massive slag tap | 1 | 24 | 62.40 | 3 | 22 | ||
| 1905 | 18 | 6.9 | 1 | 25 | 65.00 | 2 | 24 | |||
| 1925 | 20 | 7.7 | 1 | 26 | 67.60 | 2 | 26 | |||
| 1943 | 18 | 6.9 | 1 | 27 | 70.20 | 2 | 28 | |||
| 2002 | 19 | 7.3 | 1 | 28 | 72.80 | 2 | 30 | |||
| 2018 | 16 | 6.2 | 1 | 29 | 75.40 | 2 | 32 | |||
| 2034 | 16 | 6.2 | 1 | 30 | 78.00 | 2 | 34 | |||
| 2053 | 19 | 7.3 | 1 | 31 | 80.60 | 1 | 35 | |||
| NR | cover for burn down | 1 | 32 | 83.20 | ||||||
| NR | extraction | |||||||||
| TOTALS | ||||||||||
| Charcoal | 83 | kg | ||||||||
| Ore | 35 | kg | ||||||||
| tap slag added | 2 | kg | ||||||||
| Bloom | no bloom recovered | |||||||||
| Gromps | 11 | kg | ||||||||
| Yield | n/a | |||||||||
| Slag | total recovered | 18 | kg | |||||||
| input = 35kg / output = 29 kg | ||||||||||