DESULFURIZATION OF DRY WASTE GAS USING WATER GRANULATED SHAFT FURNASE SLAG

PURPOSE:To maintain stable desulfurization effect even if the operational condition of a dryer is varied, by forming a fluidized layer of suspendened fine powder of granulated shaft furnace slag in the barrel part with a large sectional area provided to the duct between the dryer and a dust collecto...

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Bibliographische Detailangaben
Hauptverfasser:	SAIKI MASAMICHI, UNO YOSHIAKI, TANAKA SHIGEMORI, SEO FUMIICHIROU, MOURI TETSUO, OYAMADA RIYOUICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT 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 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 MANUFACTURE OF IRON OR STEEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OVENS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRACTORIES RETORTS SEPARATION 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 NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To maintain stable desulfurization effect even if the operational condition of a dryer is varied, by forming a fluidized layer of suspendened fine powder of granulated shaft furnace slag in the barrel part with a large sectional area provided to the duct between the dryer and a dust collector. CONSTITUTION:To the duct line 6 between the outlet of a dryer 3 for drying granulated shaft furnace slag and the inlet of a dust collector 5, a barrel part 4 having a sectional area large than that of the duct line 6 is provided. Combustion gas generated by burning coal or the like in a hot blast stove 1 is sent to the dryer 3 and directly brought into cntact with wet granulated slag supplied from a supply port 10 to dry said slag. The dry waste gas accompanying the granulated slag fine powder discharged from the dryer 3 eneters the barrel part 4. The granulated slag fine powder accompained by the dry waste gas forms a fluidizied lyaer and is stayed in the barrel part 4 and the sufficient contact time with the dry waste gas is secured and SOx in the waste gas is adsorbed and removed. The dry waste gas after desulfurization is discharged to the outside through the dust collector 5.