A METHOD FOR MANUFACTURING BRIQUETTE DIRECTLY USING COAL WITH WIDE RANGE OF SIZE, THE METHOD USING THE SAME AND THE APPARATUS USING THE SAME

The present invention relates to method for manufacturing coal briquettes directly using coals with wide range of grain size, and the method and the apparatus for manufacturing molten irons using the same. For this, the method for manufacturing coal briquettes of the present invention comprises a st...

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Bibliographische Detailangaben
Hauptverfasser:	Lee, Hoo Geun, Ahn, Ho Sik, Heo, Nam Hwan, Park, Geun Dong, Ryou, Jin Ho, Kang, Chang-Oh, Bae, Jin Chan, Son, Chang II
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CARBURETTING AIR OR OTHER GASES CHEMISTRY FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON NATURAL GAS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	The present invention relates to method for manufacturing coal briquettes directly using coals with wide range of grain size, and the method and the apparatus for manufacturing molten irons using the same. For this, the method for manufacturing coal briquettes of the present invention comprises a step of performing an initial grain size selection of a first coal group to prepare fine coals; a step of mixing a second coal group having a mean reflectance (Rm) of 0.8 or higher into the fine coals; a step of drying mixed coals comprising the fine coals of the first coal group and the second coal group, and performing a secondary grain size selection to the mixed coals; a step of adding a hardening agent to the mixed coals and mixing the hardening agent and the mixed coals; a step of adding a molasses binder to the mixed coals and mixing the molasses binder and the mixed coals; and a step of manufacturing coal briquettes by molding the mixed coals.