METHOD AND FURNACE FOR THE COMBUSTION OF MATERIALS SUCH AS LIMESTONE,DOLOMITE,MAGNESITE OR THE LIKE,AND UTILISATION OF THIS FURNACE

摘要

The material introduced by the top of the furnace (1) passes successively through a preheating area (V), a combustion area (B) and a cooling area (K). The area (B) is supplied with combustion gaz (9) and the area (K) is supplied with cooling air (21). A portion (20) of the combustion gaz at least partially burnt and flowing from the area (B) with the roasted materials reaches, together with ascending cooling air (22), a cylinder (18). Nozzles (10) suck the gaz mixture outside the cylinder (18) and exhaust said mixture into the area (B); they are actuated by the exhaust gaz of an engine (15).