HEAT TREATMENT EFFECTED BY FLUIDIZED BED FURNACE

• Main Authors: KAWATE KENJI, MUKAI HIROYA
• Format: Patent
• Language: English
• Published: 13.04.1990
• Subjects: BLASTING; CHEMISTRY; FURNACES; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; HEATING; KILNS; LIGHTING; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; MECHANICAL ENGINEERING; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; OPEN SINTERING OR LIKE APPARATUS; OVENS; RETORTS; WEAPONS

PURPOSE:To simplify energy supplying facilities by a method wherein the rotary movement of 120 deg. of an elevating device from a work loading place to a work unloading place through a fluidized bed furnace is effected twice and,m subsequently, the rotary movement of 240 deg. of the same is effected once into opposite direction while these movements are repeated sequentially. CONSTITUTION:The heat treatment of a work to be treated is effected in a fluidized bed furnace 1. Simultaneously with and in parallel to the heat treatment, the next work to be treated is loaded onto an elevating device 25 at a loading place B and the work, whose heat treatment has been finished, is unloaded from the elevating device 25 at an unloading place C. Then, the rotary movement of 120 deg. of these three elevating devices 25 are effected and the elevating device 25, situated at the place B, is moved to a position A in the furnace, the device 25 situated at the position A is moved to the place C and the device 25 situated at the place C is moved to the place B respectively. These rotary movements are effected twice and, thereafter, the rotary movement of 240 deg. of these devices into opposite direction is effected to change the positions thereof and effect the works thereof in the same manner. The full operation of the furnace may be effected and producing efficiency may be increased by repeating these operations sequentially.