METHOD AND TUNNEL TYPE FURNANCE FOR CALCINING CARBONACEOUS BODIES, IN PARTICULAR ELECTRODES

摘要

The method comprises passing preformed bodies to be calcined (CA), containing pyrolyzable substances, through a furnace (1) having, arranged in succession, a first heating zone (A), a second or combustion zone (B) wherein volatile substance released by said bodies are subjected to combustion, a third or calcining zone (C), and a fourth or cooling zone (D). Separation means between the first (A) and second (B) zones, and between the third (C) and fourth zones (D) prevent the flue gases from flowing between such zones.