Agglomerated Stone for Using in Shaft, Corex or Blast Furnaces, Method for Producing Agglomerated Stones and Use of Fine and Superfine Iron Ore Dust

In order to also be able to economically use iron ore dust which is created by the extraction and preparation of iron ore and has not been usable until now, the invention proposes an agglomerated stone comprising (in wt. %) 6-15% of a cement binding agent, up to 20% of a carbon carrier, up to 20% of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KESSELER KLAUS, ERDMANN RONALD, MITTELSTADT HORST, FUSENIG REINHARD, WLENSTOER STEFAN, ROHMANN MATTHIAS
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS 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 FERROUS OR NON-FERROUS ALLOYS FURNACES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY OVENS PERFORMING OPERATIONS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS REFRACTORIES RETORTS SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF NATURAL STONE WEAPONS WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	In order to also be able to economically use iron ore dust which is created by the extraction and preparation of iron ore and has not been usable until now, the invention proposes an agglomerated stone comprising (in wt. %) 6-15% of a cement binding agent, up to 20% of a carbon carrier, up to 20% of residual and recyclable substances, optionally up to 10% of a coagulation and solidification accelerator and the remainder consisting of iron ore in a stone format in the form of particles having a particle size of less than 3 mm as well as possessing after three days an initial strength of at least 5 N/mm2 and after 28 days a cold compression strength of at least 20 N/mm2. As a result of the particular hardness St and form stability thereof even at high temperatures T, agglomerated stones according to the invention are especially suitable for use in shaft, corex or blast furnaces. The invention also relates to a method for producing agglomerated stones according to the invention.