EVENT | Date | Oct-19 | |||||||
Description | Icelandic stone block | 3rd use | |||||||
Goal | slag bowl in place test | ||||||||
Team | Darrell Markewitz | ||||||||
Rey Cogswell | |||||||||
Neil Peterson | |||||||||
2x from OABA | |||||||||
safety | Kelly Probyn-Smith | ||||||||
FURNACE | Type | Norwegian / Icelandic | |||||||
Material | granite block, clay fill | ||||||||
Interior | 25 | ||||||||
Height | 100 | ||||||||
Stack | 70 | ||||||||
Base | 15 | ||||||||
Packing | charcoal fines | 15 | |||||||
Tuyere | standard copper | ||||||||
Diameter | 2 | ||||||||
Angle | -22.5 | ||||||||
Proud | 5 ? | ||||||||
Air System | standard electric blower | ||||||||
Extraction | bottom via arch | ||||||||
MATERIALS | Ore | DD 2 (red + 18% scale) | |||||||
Charcoal | Maple | ||||||||
CLOCK | ELAPSED | EVENT | AIR | CHARCOAL | ORE | ||||
actual | UNIT | COUNT | TOTAL | Unit | TOTAL | ||||
pressure | LpM | bucket | kg | kg | kg | ||||
psi | 1.8 | ||||||||
1000 | start wood splints pre-heat | ||||||||
1020 | 20 | gentle air | |||||||
1040 | 20 | seal tap arch | |||||||
1120 | increase air | 400 | |||||||
1145 | T 1:45 | add rough charcoal | 800 | ||||||
relative | |||||||||
1200 | main sequence start | 3 | 3 | 5.40 | |||||
1204 | 4 | adding rough charcoal | 1 | 4 | 7.20 | ||||
1211 | 7 | 1 | 5 | 9.00 | |||||
1220 | 9 | 1 | 6 | 10.80 | |||||
1233 | 13 | last ungraded fuel | 1 | 7 | 12.60 | ||||
1238 | air increased | 1000 | |||||||
1248 | 15 | graded fuel | 1 | 8 | 14.40 | ||||
1300 | 12 | 1 | 9 | 16.20 | |||||
1313 | 13 | 1 | 10 | 18.00 | |||||
1326 | 13 | 1 | 11 | 19.80 | |||||
1339 | 13 | first ore charge | 1 | 12 | 21.60 | 1 | 1 | ||
1353 | 14 | 1 | 13 | 23.40 | 1 | 2 | |||
1406 | 13 | 1 | 14 | 25.20 | 1 | 3 | |||
1419 | 13 | 1 | 15 | 27.00 | 1 | 4 | |||
1434 | 15 | 1 | 16 | 28.80 | 1 | 5 | |||
1446 | 12 | 1 | 17 | 30.60 | 1 | 6 | |||
1500 | 14 | 1 | 18 | 32.40 | 1.5 | 7.5 | |||
1512 | 12 | 1 | 19 | 34.20 | 1.5 | 9 | |||
1528 | 16 | 1 | 20 | 36.00 | 1.5 | 10.5 | |||
1541 | 13 | 1 | 21 | 37.80 | 2 | 12.5 | |||
1557 | 16 | 1 | 22 | 39.60 | 2 | 14.5 | |||
1609 | 12 | 1 | 23 | 41.40 | 2 | 16.5 | |||
1622 | 13 | 1 | 24 | 43.20 | 3 | 19.5 | |||
1638 | 16 | 1 | 25 | 45.00 | 3 | 22.5 | |||
1654 | 16 | last ore charge | 1 | 26 | 46.80 | 3.5 | 26 | ||
1703 | 9 | last charcoal to cover | 1 | 27 | 48.60 | ||||
start burn down | |||||||||
1725 | air reduced | 800 | |||||||
TOTALS | |||||||||
Charcoal | 49 | kg | |||||||
Ore | plus 2.8 kg tap slag | 26.0 | kg | ||||||
Bloom | 6.75 | kg | |||||||
Gromps | |||||||||
Yield | 26 | % | |||||||
Condition | lacy and crumbly | ||||||||
Quality | spark test estimate | 1045 |