ELECTRIC GRAPHITISATION FURNACE Russian patent published in 2017 - IPC C01B31/04 F27B3/08 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry. Electric graphitisation furnace comprises end walls with built-in graphite current leads, leakproof umbrella connected by outlet channel with a smoke exhauster, core, in which materials to undergo graphitisation are placed, surrounded on all sides by heat-insulating layers of a charge, lateral wall 3 with cooling air channels, collectors located in lower part of walls 3, combining all channels of each wall, under with cooled hearth channels. Covering elements arranged in hearth channels, provide in half of them, alternating through one or more, air flow through channel from left to right and its outlet successively into air manifold of right wall, and in other half – air flow from right to left and its outlet into air manifold of left wall. Covering elements are made in form of covering plates 6 made from metal with softening temperature not lower than 1,000 °C, equipped with retaining shoulders 7 made from metal with height of 20–50 mm and having on inner surface transverse rollers with diameter 3–4 mm, swirling cooling air flow. Distance between edges of covering plates 6 of neighbouring cooling channels is not less than 15 mm.

EFFECT: invention can be used for production of graphitized electrodes and structural graphite materials.

1 cl, 2 dwg