EVENT Date June (21) 2024







Description Pulsing Air 2 / Baron's 7 demo







Goal mechanical air gate







Team Darrell Markewitz (M)








Neil Peterson








Ray Cogswell








Kiernan Rodgers








Autumn







records Ray Cogswell







photos various
















FURNACE Type standard short shaft / rock plinth







Material clay /ground furnace wall







Walls cylinder  + cut metal pail  5 - 2.5






Interior
25






Height
48






Stack pail extends 47 cm 82






Base
13






Packing charcoal fines topped with ash 10






Tuyere standard ceramic







Diameter
2






Angle
-22.5






Proud
4.5






Air System electric blower via sliding gate / smelt bellows







Extraction bottom via arch
















MATERIALS Ore DD 1 (red) 51% Fe






Charcoal mixed ash - Goltz 1.7 ?















CLOCK ELAPSED EVENT AIR
CHARCOAL

ORE





UNIT COUNT TOTAL Unit TOTAL



pressure LpM bucket
kg kg kg



psi


1.9











800
start wood splints pre-heat






840
gentle air
touch




952 1 52 first rough charcoal addition / air via gate
500




958
air increased
900




1005 13 first bucket

1 1 1.9

1006
fill furnace

1 2 3.8

1017
extend furnace with cut metal pail

1 3 5.7

1021
fill extension

1 4 7.6

1029 8


1 5 9.5

1039 10


1 6 11.4

1052 13


1 7 13.3

1100
wind gauge @ 18
















1101 9 start graded charcoal - Main Sequence Start

1 8 15.2

1103
Bellows test / gauge : Darrell = 35








Neil = 32 - 28






1110
Ray = 29 - 19






1113
?? = 35






1115
?? = 28 - 21






1116
blower via gate = 35
1050




1119 18


1 9 17.1

1135 16


1 10 19.0

1156 21


1 11 20.9

1213
Temperatures (over time ? to 1235)








970 / 1240 / 1245 / 1160 / 1020






1223 27


1 12 22.8

1236 13


1 13 24.7

1251
gate "from 15 to 10/10 sec" ??






1253
gauge = 36






1257 21


1 14 26.6

1336 39 tap slag added

1 15 28.5 1 S 1 S
1356 20


1 16 30.4 1 S 2 S
1422 12


1 17 32.3 1 S 3 S
1438 16


1 18 34.2 1 S 4 S
1456
self tapping






1500 22 (error - see below ?)

1 19 36.1 1 1
1508 8 (error - see above ?)

1 20 38.0 1 2
1512
power fails, air cut off / bellows air






1519
power resumes / air to full 
1200 +




1536 28


1 21 39.9 1 3
1605
temperatures (bottom to top)








blocked / 1220 / 1015 / 980 / 760






1609 33


1 22 41.8 1 4
1639 30


1 23 43.7 1.5 5.5
1703 24


1 24 45.6 1.5 7
1727 24


1 25 47.5 1.5 8.5
1758 31


1 26 49.4 2 10.5
1817
"changed air system, remove most fittings" ?





1826 28


1 27 51.3 2 12.5
1844 18 massive slag tap

1 28 53.2 2 14.5
1856 12


1 29 55.1 3 17.5
1900
air reduced
1000




1913 17


1 30 57.0 3 20.5
1931 18


1 31 58.9 3 23.5
1957 26


1 32 60.8 3 26.5
2004
power fails, air cut off








start (rushed) extraction / no burn down






2028
finish extraction 
















TOTALS









Charcoal
61 kg





Ore
26.5 kg






iron slag added 4 kg





Bloom
2 - 2.5 E kg





Gromps








Yield
potential 9 - 12 kg ore remains in stack ?
8 to 12 %















Condition very fragmented







Quality ??