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1. 发明专利

JPS5855510A CIRCULAR SHOOT IN CHARGING APPARATUS OF BLAST FURNACE 失效
公开(公告)号：JPS5855510A
公开(公告)日：1983-04-01
申请号：JP15374081
申请日：1981-09-30
申请人： NIPPON STEEL CORP , NITTETSU PLANT SETSUKEI KK
发明人： MITSUYASU TAKUJI , KUME SHIYOUICHI , HANABUSA SHIYOUJI , FURUTA MASAKAZU , SHIRAISHI MITSUHIKO
IPC分类号： B65G11/12 , B65D90/64 , B65G65/30 , B65G69/04 , C21B7/18
摘要： PURPOSE:To obtain almost perfect uniform distribution for raw materials by combining the variable throttle device at the exit of a circular shoot with the detecting device for the reserved raw materials in the circular shoot. CONSTITUTION:A circular shoot 3 is a simple and axial-symmetrical structure having a nozzle like throttle portion 15 in its lower central part, and supports a bracket 19 by a holding roller 20, and further is freely rotatable by a driving device 21. Raw material is transferred into the furnace-inside 10 through a stationary hopper 2, a gate valve 4, a seal valve 5, a small bell hopper 6, a small bell 7, a large bell hopper 8 and a large bell 9 under the circular shoot 3. A cone like throttle device 14 in the throttle portion 15 is freely movable up and down by a driving device 16 by way of a throttle driving rod 22 in which a bell driving rod 12 is positioned, thereby regulating freely the gap of the throttle portion 15 and controlling the amount of the raw material reserved in said shoot 3. This reserved amount of the raw material is detected by a detecting device 17. As a control device 18 sends the signal to keep the reserved amount in a predetermined range to the device 16, falling of the raw material is kept always uniform.

2. 发明专利

JPS57158304A CHARGING METHOD FOR COKE INTO BLAST FURNACE 失效
公开(公告)号：JPS57158304A
公开(公告)日：1982-09-30
申请号：JP4301181
申请日：1981-03-24
申请人： NIPPON STEEL CORP
发明人： HANABUSA SHIYOUJI , MATSUNAGA SHINICHI
IPC分类号： C21B5/00
摘要： PURPOSE:To utilize small-sized coke effectively by charging large-sized coke into a furnace in such a way that a recessed part is formed in the circumferential direction near the furnace wall, then charging the small-sized coke into the recessed part in such a way that the length of deposition of the small-sized coke in the diametral direction of the furnace is made smaller than the depth of raceways. CONSTITUTION:Large-sized coke 91 is charged into a furnace while the distributions thereof are controlled by a movable armor 7 in such a way that a recessed part 10 is formed in the circumferential direction near the furnace wall. Next, small-sized coke 92 is charged in the part 10, wherein the coke 92 forming the part 10 in such a way that the length L of the deposition of the coke 92 charged in the part 10 in the diametral direction of the furnace is made always smaller than the depth (l) of the raceways 5 is efficiently sintered and gasified in the raceways 5, whereby the penetrating forces of hot wind in the furnace center direction are intensified and the activation in the furnace center part is increased.

3. 发明专利

JPS5892787A METALLURGICAL FURNACE AND VESSEL FOR METALLURGY 失效
公开(公告)号：JPS5892787A
公开(公告)日：1983-06-02
申请号：JP18978081
申请日：1981-11-26
申请人： NIPPON STEEL CORP
发明人： SUZAWA TOSHIAKI , HANABUSA SHIYOUJI , FUJIMOTO SADAHISA
IPC分类号： C21C5/44 , B22D41/02 , C21B7/06 , C21C1/06 , F27D1/00

4. 发明专利

JPS59211516A Heat insulating method of hot stove 失效
标题翻译：热保温绝热方法
公开(公告)号：JPS59211516A
公开(公告)日：1984-11-30
申请号：JP8565283
申请日：1983-05-16
申请人： Nippon Steel Corp
发明人： MATSUNAGA SHINICHI , HANABUSA SHIYOUJI , YAMAGUCHI SUMITAKA
IPC分类号： C21B9/00
CPC分类号： C21B9/00
摘要： PURPOSE:To economize energy during heat insulation and to provide conservation of refractories in a heat insulating method of a hot stove during blowing down of a blast furnace by supplying a mixture composed of combustion gas and insert gas to a main burner to be used during operation of the hot stove. CONSTITUTION:A combustion chamber 9 of a hot stove has a main air pipe 10 and a main gas pipe 11. The pipe 11 has a piping 12 for, for example, coke furnace gas (COG) and a piping 13 for inert gas, for example, N2. The N2 is blown into the pipe 11 and is mixed with the air therein at the intermediate of the gas valves 14 and 15 of the pipe 11. The mixture composed of the COG and N2 is thus supplied to a main burner, and the hot stove is insulated of heat by the combustion of the main burner. If the N2 is mixed with the air in such a way, the length of the flame is made longer and the temp. in the dome part is increased, by which the purpose is achieved.
摘要翻译：目的：在隔热期间节约能源，并通过将由燃烧气体和插入气体组成的混合物供给到主燃烧器中以在运行期间使用的主燃烧器中，在高炉吹风期间在热风炉的绝热方法中提供耐火材料的保护的热炉。构成：热风炉的燃烧室9具有主空气管10和主气体管11.管11具有用于例如焦炉煤气（COG）的管道12和用于惰性气体的管道13，用于例如，N2。将N2吹入管11中并与其中的空气混合在管11的气阀14和15的中间。由COG和N2组成的混合物被供应到主燃烧器，并且热炉被主燃烧器的燃烧绝热。如果N2以这样的方式与空气混合，则火焰的长度变长，在圆顶部分增加，达到目的。

5. 发明专利

JPS57174403A OPERATION METHOD FOR BLAST FURNACE 失效
公开(公告)号：JPS57174403A
公开(公告)日：1982-10-27
申请号：JP5916981
申请日：1981-04-21
申请人： NIPPON STEEL CORP
发明人： HANABUSA SHIYOUJI , MATSUNAGA SHINICHI
IPC分类号： C21B5/00
摘要： PURPOSE:To make the use of small particle coke which is usually difficult to use in a blast furnace, to stabilize the conditions of the furnace and to improve its productivity in blast furnace operation by charging large diameter coke to the central part of the furnace and small particle coke to the peripheral part. CONSTITUTION:In the stage of charging ore raw materials 8 and coke 9 into a blast furnace 1, small particle coke 92 of 15-25mm. average grain sizes is charged to the peripheral part in the blast furnace, and large diameter coke 91 of 35- 70mm. average grain sizes is charged in the central part. In this case, hollow recesses 10 are formed in the peripheral part of the furnace by controlling the charging distribution of the coke 91, and the coke 92 is charged into these recesses 10 to 30-20% the entire coke amt. The small particle coke burns efficiently in raceways 5 formed just before the tuyeres 2 in the furnace, and the rate of production of harmful fine powder coke is reduced, whereby the length l of the raceways is increased, the activation in the furnace core part is increased and productivity is improved.

6. 发明专利

JPS60159103A METHOD FOR CHARGING RAW MATERIAL TO VERTICAL FURNACE 失效
公开(公告)号：JPS60159103A
公开(公告)日：1985-08-20
申请号：JP1269884
申请日：1984-01-26
申请人： NIPPON STEEL CORP
发明人： MATSUNAGA SHINICHI , HANABUSA SHIYOUJI , KUSANO KENICHIROU , IWANAGA TAKEICHI
IPC分类号： C21B5/00 , C21B7/18 , F27B1/20 , F27D3/10
摘要： PURPOSE:To stabilize furnace operation and the quality of a molten iron by detecting raw material conditions during the course of supply of the raw material from a conveyor to a swiveling discharger and controlling arithmetically the swiveling discharger in accordance with the detected values to distribute uniformly the raw materials in the circumferential direction of junction hoppers. CONSTITUTION:Raw material characteristics, the supply rate of the raw material, supply time and the capacity of a swiveling discharger are preliminarily detected during the course of supply of a raw material M to the discharger 2 from a conveyor 1. The opening degrees of discharging gate valves of the discharger 2, the number of swiveling ending at an integer and the swiveling speed are arithmetically controlled so as to maintain the specified discharging speed of the material M from the discharger 2 to junction hoppers 3, 4, 5. The above-mentioned discharging speed receives the limitation so as to satisfy the charging conditions of each raw material to a furnace inside 6. The raw material M in the furnace 6 is easily and uniformly distributed by the above-mentioned method, by which the furnace operation and the quality of the molten iron are stabilized.

7. 发明专利

JPS59193208A Heat insulating method of hot blast stove 失效
标题翻译：热烤炉热绝缘方法
公开(公告)号：JPS59193208A
公开(公告)日：1984-11-01
申请号：JP6608083
申请日：1983-04-14
申请人： Nippon Steel Corp
发明人： HORIO TAKEHIRO , AYUBA ZENSAKU , NAKAMOTO KATSUMI , OKUDA KOUSUKE , HANABUSA SHIYOUJI
IPC分类号： C21B9/00
CPC分类号： C21B9/00
摘要： PURPOSE:To heat insulate a hot blast stove by reduced fuel while preventing the damage of the silica brick of a checker, by partially holding the temp. of silica brick of the checker in the hot blast stove to a specific temp. range during the shutdown of the hot blast stove due to the shutdown of operation of a shaft furnace. CONSTITUTION:In an external combustion type hot blast stove wherein a heat storing chamber 1 and the dome parts 15, 16 of a combustion chamber 2 are connected by a communication pipe 4 or an internal combustion type hot blast stove having the heat storing chamber 1 and the combustion chamber 2 in the same cylinder, when the operation of a shaft furnace to which said hot blast stove belongs is shut down, the hot blast stove is heated and heat insulated until the operation thereof is again started. In this case, because the silica brick 1 of the checker in the hot blast stove receives remarkable volumetric change when passes a transformation temp. of 575 deg.C and probably receives damage due to crack generation, the temp. of the lowermost part of the silica brick is set to 300-575 deg.C and the max. and min. temp. difference of the side surface in the stove is held to 400 deg.C or less. At the same time, the temp. difference between the under surface and the upper surface of the lowermost stage of the silica brick grid stacking part of the checker is held to 400 deg.C or less and the silica checker of the checker is prevented from being damaged by cracking due to expansion and contraction.
摘要翻译：目的：通过减少燃料隔热热风炉，同时防止检查器的二氧化硅砖的损坏，部分保持温度。在热风炉中的检查器的硅砖的特定温度。由于立式炉的运转停止而在热风炉关闭期间的范围。构成：在通过连接管4或具有蓄热室1的内燃式热风炉连接蓄热室1和燃烧室2的圆顶部15,16的外燃式热风炉中，在相同气缸中的燃烧室2在关闭所述热风炉所属的竖炉的操作时，热风炉被加热并隔热直到其再次开始运转。在这种情况下，由于热风炉中的检验器的二氧化硅砖1在通过转变温度时会受到显着的体积变化。 575℃，可能由于裂纹产生而受到损坏，的硅砖的最低部分设定为300-575摄氏度，和最小温度。炉子侧面的差为400℃以下。同时，二氧化硅砖格栅层叠部分的底面和上表面之间的差异保持在400摄氏度以下，并且防止检查器的二氧化硅检查器因膨胀而破裂，收缩。

8. 发明专利

JPS56116810A REPAIRING METHOD OF BLAST FURNACE WALL 失效
公开(公告)号：JPS56116810A
公开(公告)日：1981-09-12
申请号：JP2081480
申请日：1980-02-21
申请人： NIPPON STEEL CORP
发明人： HANABUSA SHIYOUJI , KAMEDA JIYUNICHI
IPC分类号： C21B7/06 , F27D1/16
摘要： PURPOSE:To facilitate the next castable refractory filling operation in a short period of time by a method wherein a castable refractory filling hole is drilled in the damaged part of furnace wall and a castable refractory is filled, then, while it is semisolidified, a through-hole is opened, and an inert gas is injected through it. CONSTITUTION:A desired number of castable refractory filling holes 4a are drilled, at proper positions, into the damaged part of furnace wall. The holes are drilled to the inner surface of refractory bricks 2 or the inner surface of the iron shell 1 so that the castable refractory can be filled smoothly. A castable refractory feeder 11 is connected to the holes 4a and then a castable refractory layer 5 is formed in the furnace. After filling, while the castable refractory is semisolidified, a hole 6 is opened through the castable refractory layer 5 to reach the furnace inside. An inert gas feeder pipe 7 is connected to the holes 4a, and, from the end of the through-hole 6, gas is projected to prevent the hole 6 from being blocked with foreign material. In this manner, the through-hole of the specified dimensions is secured until the next castable refractory filling operation.

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