| 摘要 |
FIELD: mineral materials melting. SUBSTANCE: gas cupola has shaft 1, burners 2 with burning tunnels 3 at hearth 4, water cooling beams 5 forming grating over burning tunnels 3. Water cooling beams are made in the form of narrowing in direction to hearth 4 chute 6 in chute 7. walls of inner and outer chutes are rigidly fixed in upper widening part of chutes and below in narrowing part of chutes the walls have clearance 8. Inner chute 6 of water cooling beams is filled with refractory material 9. Inner chute 6 of water cooling beams 5 has cross-section in the form of angle or in the form of broken line, or in the form of arc, or in the form of combination of arcs, or in the form of straight lines combination with arc. EFFECT: increased cupola thermal efficiency, decreased water consumption to cool beams, increased strength and durability of the beams, heat process becomes stable and safe. 7 cl, 9 dwg |
