METHOD OF CALCINING OF CARBON-BEARING MATERIALS Russian patent published in 2005 - IPC

FIELD: metallurgy, oil refining industry and coke-chemical industry; calcining of carbon-bearing materials.

SUBSTANCE: the invention is pertinent to production of calcined carbon-bearing materials, in particular, to production of graphitized electrodes and anodic mass and may be used in metallurgical, oil refining, coke-chemical industries. A method of calcinations of the carbon-bearing materials provides for a preliminary heating of materials. Simultaneously with the process of calcination they conduct preheating of the material in a heater in the mode of a counter-flow of heat produced during reburning of a waste gas generated during calcination of the carbon-bearing material. The preliminary heating of the material preferably should be realized at the temperatures not exceeding 350-400°С. The invention allows to increase the furnace performance by 20% and to reduce a specific consumption of fuel by 50%.

EFFECT: the invention ensures significant increase of the furnace productivity and high reduction a specific consumption of the fuel.

2 cl, 1 ex, 1 dwg