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Crushing and Grading Charcoal
Forge

Imeundwa na

Forge

11. Oktoba 2026NO
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Crushing and Grading Charcoal

Lump charcoal comes in pieces from fingertip to fist size. A forge or a smelting furnace burns evenly only on pieces of one size, so the lumps are broken in a sack and sieved into grades. Bloomery smelters break it to about 2.5 cm and sift the fines out through a 1 cm (3/8 inch) mesh; the fines are kept for the furnace base, for insulation or for the garden. Weigh each grade: the split tells you how much of a sack is usable at your size.
Mwanzo
About 1 hour per sack

Maagizo

1

Choose the size

Decide the largest and smallest piece you want. For a bloomery: no larger than 2.5 cm and nothing smaller than 1 cm. A forge fire takes the same range or a little smaller.

Zana zinazohitajika:

Tepi ya kupimiaTepi ya kupimia
2

Damp the dust

Work outdoors. Mist 2 kg of lump charcoal lightly with water to keep the dust down, and put on a dust mask, gloves and glasses.

Vifaa kwa hatua hii:

MkaaMkaa2 kg
MajiMaji0.1 lita

Zana zinazohitajika:

Chupa ya kunyunyizia majiChupa ya kunyunyizia maji
Barakoa ya vumbiBarakoa ya vumbi
Glavu za Kazi za NgoziGlavu za Kazi za Ngozi
Miwani ya usalamaMiwani ya usalama
3

Break it in the sack

Put the charcoal in a burlap sack, fold the top over, lay it on hard ground and strike it with the wooden mallet. Turn the sack and feel the size through the cloth; stop while most pieces are still larger than you want, or it all turns to dust.

Zana zinazohitajika:

Gunia la kuhifadhia la hessianGunia la kuhifadhia la hessian
Nyundo ya mbaoNyundo ya mbao
4

Sieve into grades

Sieve the lot through the coarse screen: what stays on it goes back in the sack. Sieve what passed through the 1 cm screen: what stays on top is your crushed charcoal, what falls through is fines.

Zana zinazohitajika:

Seti ya chekecheke (matundu ya viwango)Seti ya chekecheke (matundu ya viwango)
Ndoo ya chumaNdoo ya chuma
5

Weigh the grades

Weigh the crushed charcoal and the fines. Write down the share of each: it is the sack's yield at your size.

Zana zinazohitajika:

Mizani ya kupimia uzitoMizani ya kupimia uzito
6

Store dry

Let damp charcoal dry in the air, then store each grade in its own lidded metal bin, labelled. Wet charcoal spits and burns cold.

Zana zinazohitajika:

Ndoo ya chuma yenye mfunikoNdoo ya chuma yenye mfuniko
7

Troubleshooting

Charcoal crushing troubleshooting.

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Vifaa

2
  • 2
    Mkaa
    2 kg
    Kishikilia Nafasi
  • 2
    Maji
    0.1 lita
    Kishikilia Nafasi

Zana Zinazohitajika

11

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Kishikilia nafasi

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CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

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