APPAREIL POUR FABRIQUER DU LAITIER VITREUX

• Main Author: JIROU KONISHI, YASUTO TAKASAKI, KENJI OHKOSHI, AKICHIKA OZEKI, SHUJI KAJIKAWA ET HARUO ITOH
• Format: Patent
• Language: French
• Published: 11.07.1986
• Edition: 4
• Subjects: ARTIFICIAL STONE; BLASTING; CEMENTS; CERAMICS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; 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; FURNACES; 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; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; REFRACTORIES; RETORTS; SLAG; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF NATURAL STONE; WEAPONS

An apparatus for manufacturing a vitreous slag, which comprises: a pair of cooling drums, the peripheral surfaces of said pair of cooling drums being in contact with each other, and said pair of cooling drums rotating in directions opposite to each other at the same peripheral speed; a pair of weirs provided at the upper halves of the both ends of said pair of cooling drums so as to be in contact with said both ends of said pair of cooling drums, a slag sump being formed by means of said pair of weirs and the bodies of said pair of cooling drums, and molten slag being poured into said slag sump; a cooling medium for cooling said pair of cooling drums, said cooling medium comprising a high boiling point heat medium having a boiling point under 1 atmospheric pressure of at least 200 DEG C., said high boiling point heat medium being fed into each of said pair of cooling drums, exchanging heat with said molten slag in said slag sump, deposited onto the peripheral surfaces of said pair of cooling drums, and being discharged from each of said pair of cooling drums under a pressure of up to 5 kg/cm2 for heat recovery, whereby said molten slag is substantially completely converted into a vitreous slag through heat exchange with said high boiling point heat medium, and is peeled off from the peripheral surfaces of said pair of cooling drums by a scraper.