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1. 发明专利

JPS57184571A MELTING AND TREATING DEVICE FOR METALLIC WASTE 失效
公开(公告)号：JPS57184571A
公开(公告)日：1982-11-13
申请号：JP7119481
申请日：1981-05-11
申请人： DORYOKURO KAKUNENRYO , KOBE STEEL LTD
发明人： OOTSUKA KATSUYUKI , MIZUNO RIYUUKICHI , YANAGIDA KOUJI , KITAGAWA KAZUO , OCHIAI ATSUHIRO
IPC分类号： G21F9/30 , B22D23/10 , B22D27/00 , G21F9/00
摘要： PURPOSE:To provide a titled device which can treat harmful metallic waste safely and smoothly by so constituting the same that slag is beforehand fired and melted by microwaves and the entire stage from this firing and melting up to melting of the metallic waste is accomplished continuously in a hermetic state. CONSTITUTION:Slag S is placed on a molding board 1b, and a carriage 3 is carried into the central part of a moving carriage 11 to bring mold bodies 1a, 1a in proximity to each other, whereby a mold 1 is assembled. The carriage 11 moved to right under an SM device 10 is lifted by a ram 20 until the upward opening part of the mold 1 contacts tightly the connecting part for the upward opening of the device 10. Shutters 12 and 15 are opened and a microwave oscillator 18 is operated to melt the slag S in a few minutes. The shutters 12 and 15 are closed, and the carriage 11 is lowered and is moved to right under an electroslag melting device 2 where the upward opening part of the mold 1 is brought in tight contact with the downward opening connecting part of the device 2, after which the shutter 12 is opened to charge metallic waste. This is followed by substituting with a shielding gas, descending of an electrode, conduction of electricity, etc. sequentially, and the molten metallic waste is solidified by retreating of the electrode and water cooling of the mold 1.

2. 发明专利

JPS55113812A STABLE FURNACE HEAT OPERATION CONTROL METHOD OF BLAST FURNACE 失效
公开(公告)号：JPS55113812A
公开(公告)日：1980-09-02
申请号：JP2111679
申请日：1979-02-24
申请人： KOBE STEEL LTD
发明人： FUJITA ISAO , IMANISHI NOBUYUKI , TSUTAYA TADAO , WATANABE MAKOTO , KAWAI TAKAO , YANAGIDA KOUJI
IPC分类号： C21B5/00
摘要： PURPOSE:To perform the adequate controlling of furnace heat balance and achieve the reduction of fuel cost by measuring three factors of feed O2 amount, ore/coke, etc., calculating furnace heat condition index, comparing the same with the index having been beforehand obtained and correcting the values of the above-mentioned three factors. CONSTITUTION:As the heat balance fluctuation factors of a blast furnace, the three factors of feed O2 amount (Nm /min.m ) as a value indicating coke combustion heat as well as the ratio ore/coke of iron ore charge amount and coke charge amount and the mean JIS reducibility of total charged iron ore are measured. From the measured values, the furnace heat condition index is calculated and is contrasted with the furnace heat condition index showing the stable range having beforehand been obtained from the actual operation data. The deviation from said stable range is evaluated and calculated and the values of the respective factors are changed and corrected. It is also possible to fix said factors 1-2 and let the remaining 2-1 be control factors. It is also equally well to designated the O2 feed amount and/or ore/coke corresponding to the target productivity coefficient and letting the remaining one or two factors be control factors.

3. 发明专利

JPS5865591A STARTING METHOD BY MELTING OF SLAG USED IN ELECTROSLAG MELTING 失效
公开(公告)号：JPS5865591A
公开(公告)日：1983-04-19
申请号：JP16505081
申请日：1981-10-15
申请人： DORYOKURO KAKUNENRYO , KOBE STEEL LTD
发明人： OCHIAI ATSUHIRO , OOTSUKA KATSUYUKI , IZUHARA SHIGEOMI , YANAGIDA KOUJI
IPC分类号： G21F9/30 , B22D23/10 , B23K25/00 , C22B9/18 , C22B9/193 , G21F9/00
摘要： PURPOSE:To perform starting safely and smoothly by melting slag by the generation of heat by a Ca-Al alloy thereby starting the melting. CONSTITUTION:A starting material 5 for slag melting of a Ca-Al alloy of good conductivity and a slag 4 for electroslag melting are laminated on a surface plate 2 in a furnace 1. When an electronic power source 6 of AC or DC is connected between an electrode 3 and the plate 2 and a voltage is applied therebetween, conduction of electricity takes place between the electrode 3 and the plate 2 and an arc is generated. When the arc is generated, the surrounding slag 4 begins to be melted by the arc heat. If in this case the circumference of the alloy 5 is maintained under an oxidative atmosphere, the alloy 5 is ignited by the arc heat and combustion is initiated. By the combustion heat thereof the melt starting of the slag is accomplished safely and smoothly.

4. 发明专利

JPS57171636A MELT TREATING DEVICE FOR METALLIC WASTE 失效
公开(公告)号：JPS57171636A
公开(公告)日：1982-10-22
申请号：JP5654881
申请日：1981-04-14
申请人： DORYOKURO KAKUNENRYO , KOBE STEEL LTD
发明人： OOTSUKA KATSUYUKI , MIZUNO RIYUUKICHI , YANAGIDA KOUJI , KITAGAWA KAZUO , OCHIAI ATSUHIRO , HARADA MINORU , MATSUMOTO HIROSHI
IPC分类号： C22B9/18 , B22D23/00 , B22D23/10 , B22D27/04 , C22B7/00 , G21F9/00 , G21F9/30
摘要： PURPOSE:To treat radioactive metallic waste in a perfectly hermetic state by constituting a device for electroslag melt treatment specifically of molds, a bucket for charging objects to be treated, an opening-closing shutter between both, electrodes and a shielding gas supply pipe. CONSTITUTION:A water-cooled surface plate 2 on a carriage 3 is stopped approximately right under the treating device. Water cooled mold bodies 1a, 1b of tapered inner side surfaces which are bisected longitudinally at approximately the center and expand in the direction of the split surfaces are brought closer to each other to one body, whereby a mold 1 is assembled. Flux or ground materials of residual slags are beforehand charged into the mold, and non-consumable electrodes 8a, 8b are lowered through the hole of a shutter 10. While a shielding gas is supplied through a pipe 12, the slag is melted. During this time, a bucket 4 which is charged with metallic waste from the chute 7 of an oscillation feeder 6 is lowered and opened by opening the shutter 10 in the stage of forming a prescribed amt. of the molten slag, whereby the materials to be treated are charged onto the slag and are melted. The molten metal accumulates in the lower part, and solidifies as it is cooled by the mold. The bucket 4 after the charging is moved upward, the shutter 10 is closed, and the above-described operations are repeated.

5. 发明专利

JPS5677055A CORRECTING METHOD OF PROGRAM CONTROL IN CONTINUOUS CASTING METHOD 失效
公开(公告)号：JPS5677055A
公开(公告)日：1981-06-25
申请号：JP15524579
申请日：1979-11-29
申请人： KOBE STEEL LTD
发明人： FUJIMAKI MASANORI , SAKAMOTO TOSHIMASA , YOSHIKAWA KATSUYUKI , ANDOU YUUICHI , YANAGIDA KOUJI , ITOU TAKAMICHI , SHIMAUCHI TAKESHI
IPC分类号： B22D11/16
摘要： PURPOSE:To make possible the controlling of outputs without disturbing later processes by changing the timings of programs according to conditions during progression of program controlling. CONSTITUTION:A standby command is fixed like the solid line in the figure by assuming that the current cooling water flow (y) is not changed. X is defined as drawing length of a cast ingot. If at this time the coordinates after (Xn+1, Yn+1) are fixed, the danger of process stray run occurs at the moment when the standby is released; therefore, the inclination of the graph after the command release beta must be held fixed or the coordinates of Xn+1, Xn+2-must beforehand be moved by the extent having stood by. Since the standby extent is DELTAX, the new coordinates are changed to (Xn+DELTAX, Yn), (Xn+1+DELTAX, Yn+1)-, hence, the cooling water flow (y) is again controlled along the prelimited program, thus the abrupt output fluctuations are averted.

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