| 摘要 |
[Problem] To enable a carbide production kiln to be maintained in a simple manner when an exposed surface on a side wall of the kiln is cracked, to prevent the kiln from being cracked greatly by heat to thereby prolong the life of the kiln, and to increase heat retention efficiency to thereby increase carbonization efficiency even at a cold temperature, e.g., in winter. [Solution] The carbide production kiln is formed by stacking cubic concrete blocks each having no reinforcing iron so that the combination of up to six faces of the cubic concrete blocks with one another becomes possible, wherein a heat storage/maintenance member (7) such as a stone is filled in an exhaust space (S) formed between a kiln floor iron plate (5) and a kiln bottom (4) so as to store heat, thereby preventing the decrease in carbonization efficiency even at a cold temperature. |
