PROCESSO E DISPOSITIVO PARA O TRATAMENTO TERMICO DE MATERIAL FINAMENTE GRANULADO

Method and apparatus for heat treatment of comminuted raw material of the type used, for example, for the production of cement in which the material is preheated in a preheater by means of hot exhaust gases from a kiln, the material is separately calcined for the deacidification of a portion of the...

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Bibliographische Detailangaben
Hauptverfasser:	RAMESOHL H, HERCHENBACH H
Format:	Patent
Sprache:	por
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS CONCRETE DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING INORGANIC CHEMISTRY KILNS LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY OPEN SINTERING OR LIKE APPARATUS OVENS REFRACTORIES RETORTS SLAG TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	Method and apparatus for heat treatment of comminuted raw material of the type used, for example, for the production of cement in which the material is preheated in a preheater by means of hot exhaust gases from a kiln, the material is separately calcined for the deacidification of a portion of the calcium carbonate present and is subsequently burnt to completion in the kiln. The specific improvement of the present invention involves utilizing undispersed coarse pieces of fuel for the separate calcination and conducting the separate calcination at the material inlet end to the kiln.