TWI510602B

• Main Authors: FURUTA, YOUICHI, TSUKUDA, JUNICHI, UCHIDA, TAKAYUKI, HANAGIRI, SEIJI
• Format: Patent
• Language: Chinese
• Published: 01.12.2015
• Subjects: ADHESIVES; 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; DYES; FURNACES; HEATING; KILNS; LIGHTING; LIME, MAGNESIA; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OVENS; PAINTS; POLISHES; REFRACTORIES; RETORTS; SLAG; TREATMENT OF NATURAL STONE; WEAPONS

The purpose of the present invention is to improve, in spray application of a monothilic refractory, not only the conveyability of a set-accelerating agent which is to be added by pneumatic conveying to a refractory composition but also the mixability of the agent with the refractory composition. The present invention pertains to a powdery set-accelerating agent which is to be used in spray application of a refractory and which is to be added by pneumatic conveying either at a nozzle (13) or on the upstream side of the nozzle (13) to a refractory composition which is pneumatically conveyed to the nozzle (13) through a pipe (17). This powdery set-accelerating agent is characterized in that: the powdery set-accelerating agent comprises a first powdery material which can harden the refractory composition and a second powdery material which is a refractory raw material; and the second powdery material contains at least 5 mass% of particles having diameters exceeding 0.5mm and at least 30 mass% of particles having