METHOD AND APPARATUS FOR PRODUCING GRANULAR SLAG FROM BLAST FURNACE SLAG

PCT No. PCT/DE86/00124 Sec. 371 Date Dec. 2, 1986 Sec. 102(e) Date Dec. 2, 1986 PCT Filed Mar. 22, 1986 PCT Pub. No. WO86/05818 PCT Pub. Date Oct. 9, 1986.In order to reduce or avoid the discharge of gaseous pollutants H2S and SO2 to the environment in a process for the production of slag sand (gran...

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Hauptverfasser:	DIETER GEROPP, KARL WIEDEMER, KONRAD MULLER
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY 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 ELECTROLYTIC OR ELECTROPHORETIC PROCESSES ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS FURNACES HEATING KILNS LIGHTING LIME, MAGNESIA MANUFACTURE OF IRON OR STEEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OVENS REFRACTORIES RETORTS SLAG TREATMENT OF NATURAL STONE WEAPONS
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Zusammenfassung:	PCT No. PCT/DE86/00124 Sec. 371 Date Dec. 2, 1986 Sec. 102(e) Date Dec. 2, 1986 PCT Filed Mar. 22, 1986 PCT Pub. No. WO86/05818 PCT Pub. Date Oct. 9, 1986.In order to reduce or avoid the discharge of gaseous pollutants H2S and SO2 to the environment in a process for the production of slag sand (granules) from blast-furnace slag by granulation of the slag by means of a water jet, the propulsion jet interspersed with water vapor, granules and pollutants is injected directly into a water receiver, the residual vapor still remaining and the pollutants H2S and SO2 not yet washed out are cooled down in a condenser in counter-current with spray water and condensed, and the residual gas remaining after the vapor condensation is taken off from the top end of the condenser and recycled via a recycle line back to the injector.