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    • 5. 发明专利
    • Method and apparatus for recovering sensible heat of hot coil
    • 回收热线热敏的方法和装置
    • JPS5743933A
    • 1982-03-12
    • JP11722780
    • 1980-08-25
    • Kobe Steel Ltd
    • BAN SEIJIHIWATARI TAIAKIAKETO HIROSHISASAKI KATSUMIKONAGAYA HIROSHIFURUSATO YOSHITOMI
    • C21D9/52C21D9/54F27D17/00
    • C21D9/52
    • PURPOSE:To utilize the sensible heat of a hot coil effectively by a method wherein a hot coil wound in a hot rolling operation is put into water in a water tank to produce hot water, then the hot water is passed through a heat exchanger to produce clean hot water, which is supplied to a line where it is required. CONSTITUTION:A plurality of hot coils 2 wound at a temperature of about 450- 700 deg.C are immersed in water in the water tank 1 to convert the water into hot water of about 90-98 deg.C. In this case, the tank 1 is closed by a cover 3. The hot water obtained in the tank 1 is fed to the heat exchanger 6 by a pump 5, and it is brought into heat exchange with fresh water to produce clean hot water. The clean hot water of about 50-100 deg.C is fed through a branch pipt 23 to process lines 24, 25, 26 where it is required, while the hot water cooled to about 30 deg.C through the heat exchange is returned to the tank 1 via a circulating pipe 7. In addition, the clean hot water is fed to the secondary heat exchanger 11, where it is heated to a temperature of about 130-300 deg.C by exhaust gases, and the thus obtained hot water is used for driving a turbine 16 to generate electric power through a generator 17.
    • 目的:通过一种将热轧操作中缠绕的热线圈放入水箱中的水中产生热水的方法,有效地利用热线圈的显热,然后将热水通过热交换器产生 清洁热水,供应到需要的线路。 构成:将在大约450-700℃的温度下缠绕的多个热线圈2浸入水箱1中的水中,以将水转化成约90-98℃的热水。 在这种情况下,罐1由盖3封闭。在罐1中获得的热水通过泵5供给到热交换器6,并与淡水进行热交换以产生干净的热水。 将大约50-100℃的干净的热水通过分支管嘴23供给到需要的处理管线24,25,26,而通过热交换冷却至约30℃的热水返回到 水箱1通过循环管道7.此外,清洁的热水被供给到二次热交换器11,在其中通过废气将其加热到约130-300℃的温度,并将得到的热水 用于驱动涡轮机16以通过发电机17产生电力。
    • 8. 发明专利
    • OPERATING METHOD FOR BLAST FURNACE
    • JPS5528320A
    • 1980-02-28
    • JP9986478
    • 1978-08-15
    • KOBE STEEL LTD
    • SASAKI KATSUMI
    • C21B5/00
    • PURPOSE:To make the blast furnace possible to be operated under the accelerated reducing reaction and the improved productivity, by preheating the feed stocks for the blast furnace in order to charge them at hot condition. CONSTITUTION:The feed stocks for iron manufacture, like as the pellet-like ores, the sintered ores, etc., to be charged into the blast furnace, are preheated before charging. The preheating temperature is desirable to be higher than 150 deg.C and lower than 800 deg.C by reason of handling at conveying and charging. Hereby, the thermal shock to be given to the charged material in the furnace is effectively moderated, so that the powdering of charged material owing to the thermal shock, and resulting increase of draft resistance through the furnace, etc., can be prevented;in addition to this advantage, the sensible heat and latent heat of the top exhaust gas are heightened so as to be utilizable on the outside of the furnace as the effective heat source.