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    • 5. 发明专利
    • PLASMA FURNACE AND A METHOD OF OPERATING THE SAME
    • CA2205529C
    • 2000-10-24
    • CA2205529
    • 1994-03-08
    • KANSAI ELECTRIC POWER COKOBE STEEL LTD
    • YAMADA MOTOOTAGASHIRA SHIGEYOSHIHIGASHI YASUOSUZUKI TOMIO
    • C03B3/00C03B5/00C03B5/02C03B5/237C03B5/26C21B13/12F23G5/08F23G5/12F23G5/50F23J9/00F27B3/08F27B3/18F27B3/19F27B3/28F27D3/15F27D17/00F27D21/00F27D99/00H05H1/24H05H1/48
    • The flow of waste gas is directed downwardly by means of a refractory guide chute so as to follow the down flow of molten slag at the downstream end of a slag outlet. Thus the sensible heat of the high-temperature waste gas forcedly heats the molten slag and the downstream end portion of the slag outlet. Consequently, it becomes less possible for the slag outlet to be choked up. Assuming that the upstream end of the slag outlet is disposed at a horizontal distance of L from the downstream end of a waste inlet, a pivot, about which a plasma torch is tilted, is disposed at a horizontal distance of 0.2L to 0.45L from the downstream end of the waste inlet. Because of this arrangement, heat from a plasma arc is adapted to be radiated to the downstream end of the waste inlet and its vicinity so as to quickly melt the waste. When there are signs that the slag outlet is being choked up, the plasma torch is slightly tilted to the upstream end of the slag outlet so as to stabilize the discharge of the molten slag. A housing or jacket is disposed circumferentially around an incineration residue feed pipe, inserted through the incineration residue inlet, and adapted to allow an annular gas curtain to issue therefrom. A driving device for changing the inclination of the jacket is provided, this driving device being associated with a tilting device for changing the inclination of the plasma torch so that, when the inclination of the plasma torch is changed by the tilting device, the inclination of the jacket may also be changed by the driving device. Gas, e.g. air, is delivered from the jacket and directed toward a reservoir of the molten slag in such a manner that the direction of radiation from the plasma torch and the direction of gas delivery from the jacket intersect substantially on the surface of the slag reservoir. Thus the incineration residue is allowed to fall onto a high-temperature area of the surface of the slag reservoir. Fuel injection against the waste gas in the furnace body is particularly suitable for decreasing the amount of NOx. Valuable matter is efficiently recovered from the waste gas without causing a waste gas channel in a waste gas purifying plant to be choked up with the particles of valuable matter. A device for detecting the leakage of cooling water caused by the deterioration of the plasma torch is also provided.
    • 7. 发明专利
    • HEAT-STORAGE TYPE HEAT SUPPLYING APPARATUS AND HEAT-STORAGE TYPE HEAT SUPPLYING SYSTEM
    • CA2540604A1
    • 2006-10-19
    • CA2540604
    • 2006-03-21
    • KOBE STEEL LTD
    • HIGASHI YASUOTAKAHASHI KAZUOYAGI HIROMIKI
    • F24H7/04F24H4/04
    • Provided is a heat-storage type heat supplying apparatus capable of supplying a fixed amount of heat-exchange medium to a heat-removing device, by which the heat-removing device is operated efficiently. The heat-storage type heat supplying apparatus has a heat-storage tank that houses erythritol, which stores heat depending on a state change between solid and liquid, and oil that performs heat exchange by contacting the erythritol, has a smaller specific gravity than that of the erythritol, and is separated from the erythritol, in an internal space, takes in the oil in a lower portion of the internal space, and discharges the oil from an upper portion of the internal space. Then, the apparatus has a discharge tube 6 and an intake tube, which supply the oil discharged from the heat-storage tank to a heat exchanger, and a supply tube and a removing tube, which supply the oil, from which heat has been removed in the heat exchanger, to the heat-storage tank. Further, the apparatus has a flow rate meter that detects the flow rate of the oil flowing in the discharge tube, and a pump that is provided on the discharge tube and controls the flow rate of the oil flowing in the discharge tube based on a detection result from a flow rate control section.