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    • 71. 发明专利
    • Method for gasifying coal or the like and melting reduced iron
    • 用于燃烧煤或类似和还原铁的方法
    • JPS5950104A
    • 1984-03-23
    • JP16051082
    • 1982-09-13
    • Sumitomo Metal Ind Ltd
    • KAMEI YASUOMIYAZAKI TOMIOSHIMODA TERUHISAOKI KOUJIYAMAOKA HIDEYUKI
    • C21B11/02C21B13/00
    • C21B13/002
    • PURPOSE:To prevent the operation of bridging phenomena, etc. and to supply smoothly coal, etc. into a combustion chamber in a cylindrical furnace body having roughly the same diameter by making common use of a tuyere for blowing oxygen and steam as a supply port for coke and coal. CONSTITUTION:Coal 29, etc. are supplied through the tuyeres 21 in a furnace to form a combustion zone (a). Coke 25, etc. are charged through a charging port 22 in the upper part of the furnace body to form a heating part (b). Reduced iron 26 is likewise charged through the port 22 to form a melting part (c). The oxygen, 27, steam 28, etc. blown through the tuyeres 21 and the coal 20, etc. are brought into reaction in the zone (a) and the slag thermally decomposed and melted by the combustion gas consisting essentially of CO and H2 and the limestone, etc. blown through the tuyeres 21 is formed. The combustion gas passes through the heating part (b) and melts the reduced iron 26 in the melting part (c), whereafter the gas is recovered through a discharging port 23. The slag is melted in the part (c) and is recovered together with the molten iron 26 dropping down in the part (b) in a well (d) and is removed through a gap and cinder notch 24.
    • 目的:为了防止桥接现象等的操作,并且通过共同使用用于吹氧和蒸汽的风口作为供应口的通常使用具有大致相同直径的圆筒形炉体中的燃烧室等, 用于焦炭和煤炭。 构成:煤29等通过风嘴21在炉中供给以形成燃烧区(a)。 焦炉25等通过炉体上部的加料口22进行加料,形成加热部分(b)。 还原铁26同样通过端口22充电以形成熔化部分(c)。 通过风嘴21和煤20等吹入的氧气27,蒸汽28等在区域(a)中引起反应,炉渣由基本上由CO和H2组成的燃烧气体热分解和熔化, 形成吹入风口21的石灰石等。 燃烧气体通过加热部分(b)并熔化在熔化部分(c)中的还原铁26,然后通过排放口23回收气体。炉渣在部分(c)中熔化并一起回收 其中铁水26在井(d)中在部分(b)中下降,并通过间隙移除并切割凹口24。
    • 72. 发明专利
    • Method and apparatus for gasification and manufacture of pig iron
    • 用于生铁和制造铁的方法和装置
    • JPS5928511A
    • 1984-02-15
    • JP13844882
    • 1982-08-11
    • Sumitomo Metal Ind Ltd
    • YAMAOKA HIDEYUKIHATANO MICHIHARUMIYAZAKI TOMIOSHIMODA TERUHISAOKI KOUJI
    • C21B11/02C21B13/00
    • C21B13/002
    • PURPOSE:To inhibit the damage of a furnace wall at the inner furnace wall part in a transferring zone extending from the lower end of an upper small-diameter side wall part to a lower large-diameter side wall part, by forming the stream of steam along the inner wall surface at the lower end of the upper small-diameter side wall part of its lower vicinity inside a melting-gasifying furnace. CONSTITUTION:In the melting-gasifying furnace 10 comprising an upper small-diameter side wall part 11, a lower large-diameter side wall part 12 and an inclined middle side wall part 13, reduced iron 17 and coke 18 through a charging opening 19, solid fuel 28 and a slag-forming agent 29 through a middle charging opening 31, and oxygen 21 and fuel 22 through tuyeres 23 are charged, respectively, while reductive recovered gas 27 through a gas-withdrawing opening 20, and pig iron 26 and steel slag 24 through an opening 26 for discharging pig iron and slag are withdrawn, respectively. In the interior of said furnace, a heating zone a, a melting zone b, a combistion chamber c, a molten slag layer d, a basin e and a middle layer f packed with charged matter are formed. An opening 32 for injecting steam is provided at said middle side wall part 13, and steam is injected through it along the inner wall surface to inhibit the rising of the temp. of the inner wall part 33 in the transferring zone or the inner wall in its vicinity. Hence, the erosion or damage of the furnace wall is alleviated.
    • 目的:为了抑制在从上小直径侧壁部分的下端延伸到下大直径侧壁部分的转移区域中的内炉壁部分处的炉壁的损坏,通过形成蒸汽流 沿着熔融气化炉内的下侧的上部小直径侧壁部的下端的内壁面。 构成:在包括上部小直径侧壁部11,下部大直径侧壁部12和倾斜中间侧壁部13的熔融气化炉10中,通过加料口19将还原铁17和焦炭18, 固体燃料28和成渣剂29分别通过中间充气口31和氧气21和燃料22通过风口23被充电,而还原回收气体27通过抽气开口20和生铁26和钢 分别排出通过用于排放生铁和炉渣的开口26的炉渣24。 在所述炉的内部,形成加热区a,熔化区b,组合室c,熔渣层d,盆e和填充带电物质的中间层f。 在所述中间侧壁部13设置有用于喷射蒸汽的开口32,并且通过内壁壁向其喷射蒸汽以抑制温度的上升。 的内壁部33或其附近的内壁。 因此,可以减轻炉壁的侵蚀或破坏。
    • 73. 发明专利
    • METHOD AND DEVICE FOR PRODUCTION OF PIG IRON
    • JPS58171515A
    • 1983-10-08
    • JP5370382
    • 1982-04-02
    • SUMITOMO METAL IND
    • YAMAOKA HIDEYUKIHATANO MICHIHARUMIYAZAKI TOMIOSHIMODA TERUHISAOKI KOUJI
    • C21B13/14
    • PURPOSE:To economize energy consumption by reducing iron ore to reduced iron in an iron ore reducing furnace by using the reducing gas formed in a melting and gasifying furnace, charging the reduced iron into the melting and gasifying furnace and melting the same thereby producing pig iron. CONSTITUTION:A reducing gas 12 from a gas discharge port 3 of a melting and gasifying furnace 1 is blown through a blow port 23 into a shaft type reducing furnace 20a to reduce the iron ore (f) charged into the furnace to reduced iron 7. The reduced iron 7 and coke 8 are charged through a charge port 2 into the furnace 1, where a coke packed layer (b) and a reduced iron layer (a) are formed. Oxygen 9, pulverized coal 10, steam 11 and limestone powder 13a are blown into the furnace through a tuyere 4, and the coal 10 is converted to combustion gas by oxygen 9, whereby the high temp. gas consisting essentially of CO and H2 is formed. The gases rise in the layer (b) to melt the reduced iron (a) in the upper part thereof. While the reduced iron drops in the coke layer (a) in the counter current state with the high temp. gas, the reduced iron is formed into pig iron C which is then stored in a well (d).
    • 74. 发明专利
    • METHOD AND DEVICE FOR PRODUCTION OF PIG IRON
    • JPS58171513A
    • 1983-10-08
    • JP5224882
    • 1982-04-01
    • SUMITOMO METAL IND
    • YAMAOKA HIDEYUKIHATANO MICHIHARUMIYAZAKI TOMIOSHIMODA TERUHISAOKI KOUJI
    • C21B11/02C21B13/14
    • PURPOSE:To economize energy consumption by charging reduced iron of high temp. and coke raw material into a shaft type half-carbonizing furnace, forming the same into half-carbonized coke by the sensible heat of the reduced iron, and charging the half-carbonized coke and the reduced iron into a melting and gasifying furnace having a tuyere and a charge port for solid fuel. CONSTITUTION:Oxygen 9, pulverized coal 10, steam 11 and limestone powder 13a are blown into a melting and gasifying furnace 1 through a tuyere 4 and coke 16, coal 17, limestone 18 and steam 11 are blown therein through a charge port 15 for solid fuel to convert the fuel to combustion gas by oxygen 9, whereby the high temp. gas consisting essentially of CO and H2 is formed. The gas allowed to rise in coke-packed layers (b) to melt the reduced iron (a) in the upper part thereof. The reduced iron is dropped as pig iron C; at the same time reducing gas is fed through a gas removal port 12 into a shaft furnace 20 to reduce the iron ore in the furnace to reduced iron 7. The reduced iron 7 of high temp. and the coke 8 are charged into a shaft type half-carbonizing furnace 30 to form half-carbonized coke. The reduced iron and the half-carbonized coke are charged through a charge port 2 into the furnace 1.
    • 76. 发明专利
    • PRODUCTION OF PIG IRON
    • JPS5891106A
    • 1983-05-31
    • JP18982881
    • 1981-11-25
    • SUMITOMO METAL IND
    • TAKATANI KOUJIHIRAOKA FUMIAKIYAMAOKA HIDEYUKI
    • C21B11/02C21B13/14
    • PURPOSE:To provide a producing method for pig iron which makes the production up to production of hydrogen of high purity possible by the simple process of not using liquid raw materials by combining a reducing furnace for iron ore, a melting and gasifying furnace for melting the reduced iron and producing gases and a hydrogen generating furnace for producing H2 by oxidizing reduced iron with steam. CONSTITUTION:O2, steam and puluertzed coal are blown through a tuyere 1 into a combustion chamber (a), and the combustion gases consisting essentially of CO, H2 formed by said blowing are run into a melting part (b) where reduced iron is melted and discharged 4 therefrom. The molten reduced iron is subjected to carburizing and SiO2 reduction reaction in the part (b) and is discharged 6 through a well 5 together with slag. On the other hand, the above-described gas to be discharged 4 from a melting and gasifying furnace A is supplied 7 to a moving bed type reducing furnace B, and the reduced iron is dispensed from a dispensing device 10. Part thereof is supplied to a moving bed type hydrogen producing furnace (c) and the balance to the furnace A, respectively. In the furnace (c), the reduced iron is oxidized by the steam entering 11 the furnace to recover the formed H2 and to circulate the same to the furnace B for recirculation.
    • 77. 发明专利
    • BLOW-DOWN OPERATION OF SHAFT FURNACE
    • JPS57200505A
    • 1982-12-08
    • JP8713381
    • 1981-06-05
    • SUMITOMO METAL IND
    • YAMAOKA HIDEYUKIHATANO MICHIHARUKURITA KOUICHISATOU KAZUAKISHIMODA YOSHIO
    • C21B5/00C21B7/00
    • PURPOSE:To prevent blowing-through as well as to shorten a blow-down operation time and to reduce a process number, in a length reducing operation process, by adjusting a furnace top pressure adjusting valve and a bypass valve of an electric power installation provided to the downstream thereof to maintain the furnace top pressure of a shaft furnace to a high level. CONSTITUTION:The shaft furnace gas exhausted from the furnace top of a shaft furnace is passed through a recovery pipe 2 and a wet type dust collector 3 and, after passed through a dehumidifier 5 through an adjusting valve 4, branched into a main circuit 2a and a bypass circuit 2b and, in the former circuit 2a, a part of said gas is passed through a turbine 62 of a furnace top pressure electric power installation 6 through an opening and closing valve 61 and in the latter circuit 2b, the remainder gas is passed through a bypass valve mounted with a main valve 71, an auxiliary valves 72, 73 in parallel and both gasses are again met to be introduced into a gas holder 8. When the shaft furnace 1 is under length reducing blow-down operation, as an air sending amount is reduced, the valve 61 is closed at first and the opening degree of the adjusting valve 4 is reduced to reduce the lowering of furnace top pressure. After the opening degree of the valve is made min., the bypass valve 7 is throttled in the order of the main valve 71, the auxiliary valves 72, 73 to maintain the furnace top pressure to a high level.
    • 78. 发明专利
    • BLOWING-DOWN OPERATING METHOD OF BLAST FURNACE
    • JPS57188605A
    • 1982-11-19
    • JP7387381
    • 1981-05-15
    • SUMITOMO METAL IND
    • YAMAOKA HIDEYUKIHATANO MICHIHARUAWATA KOUICHI
    • C21B5/00
    • PURPOSE:To decide the starting time of residual pig discharge accurately by measuring layer top depth in a furnace at every interval of time after ore is charged and operation is stopped, and calculating an index by a specific equation from the total value of said measured value in every certain time, the area of a layer top in the furnace, and the total amount of a blast. CONSTITUTION:In the flowing-down operation of a blast furnace, after ore is charged and operation is stopped, layer top depth in the furnace is measured by a depth measuring rod, etc., at 3-30min intervals, and recorded. The total value (DELTASL) of said measured value in every prescribed time, area (S) of a layer top in the furnace, and the total amount (VB.DELTAt) of the blast are used to calculate the index by equationI. When the index reaches a criterion, residual pig discharge is started. An index (i) as the criterion is calculated by equation II. In the equation II, rhoore is the bulk specific gravity of the ore rhocoke is the bulk density of the coke, and ore is the amount of treated ore; and coke is the amount of treated coke and (o) is an index in the beginning of a blowing down.
    • 79. 发明专利
    • Method of regulating circumferential distribution in blast furnace operation
    • BLAST FURNACE作业中循环分布的调节方法
    • JPS5770209A
    • 1982-04-30
    • JP14485380
    • 1980-10-15
    • Sumitomo Metal Ind Ltd
    • YAMAGATA CHISATOHATANO MICHIHARUOKI KOUJIYAMAOKA HIDEYUKIMATSUOKA SADAKAZU
    • C21B5/00
    • C21B5/006
    • PURPOSE:To reduce circumferenital deviations of distrubution in a blast furnace and stabilize the descent of material by a method wherein the blast furnace is divided into four stages, the position of a fusion zone and the distribution of material flow are detected at each point along the circumferential direction, and the amount of a heavy oil blown in and the distribution of charges are regulated based on the detection results. CONSTITUTION:The blast furnace is divided into four stages, i.e., a preheating zone, an indirect reduction zone, a direct reduction and fusion zone, and a dribbling zone. The data of a circumferential sonde provided at an upper part of the shaft, the descent of material n the circumferntial direction, the amoount of air blown through each branch pipe, the amount of heavy oil, the blasting conditions, the compositions of ores and coke, tapping data, etc. are inputted and calculations of heat exchange and reaction are conducted for each point along the circumferential direction. Based on the calculations, the circumfereitial distribution of material flow and the distribution of the fusion zone are estimated, and the regulation of the amount of heavy oil blown in the circumferential direction or the distribution of the changes by a movable armor are regulated so that the lowermost fusion zone level can be maintained to be at least an predetermined value, thereby stabilizing the descent of material. Accordingly, the material flow on the side of the circumferential furnace wall can be detected accurately and the accuracy in estimating the fusion zone distribution is enhanced.
    • 目的:为了减少高炉分散的圆周偏差,通过高炉分为四级的方法稳定材料的下降,熔融区的位置和材料流的分布在沿着 基于检测结果来调节重油的吹入量和电荷分布。 构成:高炉分为预热区,间接还原区,直接还原和熔融区以及滴管区四个阶段。 设置在轴上部的圆周探头的数据,材料沿周向的下降,通过每个支管吹出的空气的数量,重油的量,爆破条件,矿石和焦炭的组成 ,攻丝数据等,并且沿着圆周方向对每个点进行热交换和反应的计算。 根据计算,估计物料流量的周边分布和熔融区域的分布,并调整在圆周方向上吹入的重油量或由可移动铠装的变化分布的调节,使得 最低熔融区域水平可以保持至少为预定值,从而稳定材料的下降。 因此,可以精确地检测圆周炉壁侧的材料流动,提高熔融区域分布的估计精度。
    • 80. 发明专利
    • Gasifying method for coal by fixed bed furnace
    • 固定床炉煤气化方法
    • JPS5770187A
    • 1982-04-30
    • JP14734080
    • 1980-10-20
    • Sumitomo Metal Ind Ltd
    • YAMAOKA HIDEYUKIHATANO MICHIHARUMIYAZAKI TOMIOOKI KOUJI
    • C10J3/02
    • PURPOSE: To provide high-calory gas stably and efficiently, by charging coal and coke together with lime stone to burn them at a high temperature in front of an O
      2 blowing opening and by leading the resulting cumbustion gas into a forward layer filled with graphite shhers or low-activity coke.
      CONSTITUTION: O
      2 , steam or the like is blown in from a tuyere 1 to form a comsustion chamber 6, and coke, coal and lime stone are charged into the combustion chamber 6 from a loading aperture 2 to be furned. The resulting high-temperature combustion gas is passed through a layer filled with graphite shheres or lowactivity coke upward to melt reduced iron C charged from a loading aperture 3 for reduced iron by its sensible heat and then the combustion gas is recovered through a gas taking out opening 4. On the other hand, molten matter comprising molten ash and CaO, a component of lime stone, formed in the combustion chamber 6, and molten reduced iron flow into a hearth 5 in the bottom part of the furnace and are drawn out of a tap hole 8 and a cinder notch 9.
      COPYRIGHT: (C)1982,JPO&Japio
    • 目的:为了稳定有效地提供高卡路里气体,通过将石灰石与石灰石混合在一起,在O2吹开口前面的高温下将煤和焦炭燃烧,并将所得到的燃烧气导入填充有石墨碎屑的正面层, 或低活性焦炭。 构成:从风口1吹入O 2,蒸汽等,形成消音室6,将焦炭,煤和石灰石从装载孔2装入燃烧室6。 所得到的高温燃烧气体通过填充有石墨球或低活性焦炭的层通过其显热来从用于还原铁的装载孔3中收缩的还原铁C熔化,然后通过取出气体回收燃烧气体 另一方面,包括熔融灰分和CaO的熔融物质,形成在燃烧室6中的石灰石的一部分,并且熔融的还原铁流入炉底部的炉床5,并被排出 抽头孔8和切屑槽9。