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71. 发明公开

KR1020030048811A 용광로의 미분탄 취입지관 관통방법 无效
标题翻译：用于吹制燃烧煤粉喷射线的方法
公开(公告)号：KR1020030048811A
公开(公告)日：2003-06-25
申请号：KR1020010078842
申请日：2001-12-13
申请人： 주식회사 포스코
发明人： 임용재 , 장순찬
IPC分类号： C21B7/00
CPC分类号： C21B7/16 , C21B5/003 , C21B7/24 , F27B1/16 , F27B1/28
摘要： PURPOSE: A method for penetrating pulverized coal injection line of blast furnace is provided to minimize quality deterioration of hot metal, stabilize blast furnace circumstances and contribute to safety of workers by grasping injection state per pulverized coal injection lines and detecting and penetrating clogged part thereof at once. CONSTITUTION: In a method for penetrating the closed pulverized coal injection line in case that a pulverized coal injection line in pulverized coal injection facilities of blast furnace is clogged, the method for penetrating the pulverized coal injection line of the blast furnace comprises the processes of mounting a nitrogen purge pipe(14) equipped with an automatic nitrogen purge valve(12) at the rear end of pulverized coal supply switch valve(10) on each pulverized coal injection line(110) extended from a distribution valve(100), installing a nitrogen backwash pipe(28) with automatic switch valve(26) in front of an injection lance automatic valve(22) adjacent to pulverized coal injection lance(130), and mounting a pressure sensor(30) on the pulverized coal injection line(110); supplying first nitrogen gas of high pressure to the pulverized coal injection lance(130) from the distribution valve(100) by opening the automatic nitrogen purge valve(12) if pulverized coal is clogged in the pulverized coal injection line(110), and pressure is reduced to a set value or less in the pressure sensor(30); and supplying second nitrogen gas of high pressure to the pulverized coal injection lance(130) through the nitrogen backwash pipe(28) in an opposite direction to the distribution valve(100) side so as to penetrate pulverized coal clogged in the pulverized coal injection line(110) if pulverized coal inside the pulverized coal injection line(110) is not penetrated by supply of the first nitrogen gas.
摘要翻译：目的：提供一种贯穿高炉煤粉注入管线的方法，以最大限度地降低铁水质量恶化，稳定高炉环境，并通过抓取每个粉煤喷射管线的喷射状态并检测并渗透其堵塞的部分，有助于工人的安全一旦。构成：在高炉粉煤喷射设备中的粉煤喷射管被堵塞的情况下，在密闭式粉煤喷射管道穿透的方法中，贯穿高炉粉煤喷射管线的方法包括安装在从分配阀（100）延伸的每个粉煤喷射管（110）的粉煤供给切换阀（10）的后端配备有自动氮气净化阀（12）的氮气吹扫管（14），安装氮气回洗管道（28），与喷粉枪喷枪（130）相邻的喷枪自动阀（22）前面具有自动切换阀（26），并且在粉煤喷射管线（110）上安装压力传感器（30））; 如果煤粉在煤粉注入管线（110）中堵塞，则通过打开自动氮气净化阀（12），从分配阀（100）向粉煤喷射枪（130）供应高压的第一氮气，在压力传感器（30）中减小到设定值以下。并且通过所述氮回流管（28）沿着与所述分配阀（100）侧相反的方向向所述粉煤喷射枪（130）供给高压的第二氮气，以穿过在所述粉煤喷射管线中堵塞的粉煤（110），如果粉煤喷射管线（110）内的粉煤没有被第一氮气的供给穿透，则（110）。

72. 发明公开

KR1020030021722A 고로의 풍구용 옥토 파쇄장치 失效
标题翻译：用于破碎烧烤炉的耐火材料的装置
公开(公告)号：KR1020030021722A
公开(公告)日：2003-03-15
申请号：KR1020010055125
申请日：2001-09-07
申请人： 주식회사 포스코
发明人： 손한호 , 서원석 , 정봉길 , 임종득
IPC分类号： C21B7/16
CPC分类号： C21B7/16 , F27B1/16 , F27D2001/1605 , F27D2021/0057
摘要： PURPOSE: An apparatus for crushing refractory materials for tuyere of blast furnace is provided to substantially reduce time required for crushing the refractory materials and prevent safety accidents due to hot blast and flame backflown by operating motor and rotating screw bit using a remote controller and crushing the baked refractory materials. CONSTITUTION: The apparatus(30) for crushing refractory materials for tuyere of blast furnace comprises first housing(30-13) comprising a screw bit(30-1) comprising a conical shaped head part and a body part which is extended from the rear of the head part, and on which a spiral shaped screw is longitudinally formed, and first gear(30-2) engaged with the body part of the screw bit to operate the screw bit back and forth; and second housing(30-10) comprising second gear(30-4) on which the first housing is rested, and on the upper part of which a hole is formed so that the second gear is engaged with the first gear projected inward through the hole, a driving motor(30-6) for driving the second gear, and a remote frequency receiving plate(30-7) for controlling operation of the driving motor by signals impressed from the outside, wherein the second housing on which the first housing is rested is installed inside the tuyere in the state that the head part of the screw bit faces the inner part of the blast furnace so that the screw bit is rotationally advanced to crush the refractory materials baked in the tuyere as the driving motor is being operated by signals impressed from the outside.
摘要翻译：目的：提供一种用于破碎高炉风口耐火材料的设备，以大大减少破碎耐火材料所需的时间，并防止由于使用遥控器操作电机和旋转螺丝刀而导致的热风和火焰回流引起的安全事故，并将焙烧耐火材料。构成：用于破碎高炉风口的耐火材料的装置（30）包括第一壳体（30-13），其包括螺旋钻头（30-1），该螺纹钻头包括圆锥形头部和主体部分，该主体部分从头部，并且在其上纵向形成有螺旋形螺钉;以及第一齿轮（30-2），与螺丝刀头的主体部分接合以使螺丝刀来回操作; 以及第二壳体（30-10），其包括第二齿轮（30-4），第一壳体在其上搁置，并且在其上部形成有孔，使得第二齿轮与向内突出的第一齿轮接合用于驱动第二齿轮的驱动电动机（30-6）和用于通过从外部施加的信号来控制驱动电动机的操作的远程频率接收板（30-7），其中第一壳体在螺杆的头部部分面向高炉的内部的状态下安装在风口内部，使得螺旋钻头旋转地推进，以在驱动马达被操作时粉碎在风口中烘烤的耐火材料通过从外面留下的信号。

73. 发明公开

KR1020020090676A 용광로 노내 가스유통분포 제어장치 有权
标题翻译：用于控制烟气中气体分布的装置
公开(公告)号：KR1020020090676A
公开(公告)日：2002-12-05
申请号：KR1020010029640
申请日：2001-05-29
申请人： 주식회사 포스코
发明人： 한상현 , 박지원
IPC分类号： C21B7/00
CPC分类号： C21B7/16 , F27B1/16
摘要： PURPOSE: An apparatus for controlling gas flow distribution in a blast furnace is provided to suppress variation of furnace conditions by changing charging method or adjusting blowing amount, prevent damage of metal case by minimizing thermal load, and improve productivity by restraining deterioration of temperature of the furnace. CONSTITUTION: The apparatus for controlling gas flow distribution in a blast furnace comprises a first pipe(20) which is penetrated into the outer circumference of a furnace body metal case(10) as a device that is attached to the body of the blast furnace to blow nitrogen gas into the furnace; a second pipe(20') which is installed along the first pipe(20), at the outer end side of the furnace of which inlet part is formed, and at the inner end side of the furnace of which an outlet part is formed; a water supply pipe which is formed between the first pipe(20) and the outer circumference of the second pipe(20') by being penetrated into one side of the first pipe(20); a drain pipe(22g) that is connected to the outer circumference of the other side of the first pipe(20); and a holder(24) one side of which is removably installed at a clamping part formed on the outer circumference of the first pipe(20), and the other side of which is adhered to the furnace body metal case(10).
摘要翻译：目的：提供一种用于控制高炉中气体分布的装置，通过改变充电方法或调节吹入量来抑制炉条件的变化，通过最小化热负荷来防止金属壳体的损坏，并通过抑制金属壳体的温度劣化来提高生产率炉。构成：用于控制高炉中的气体流量分布的装置包括：第一管道（20），其穿过炉体金属壳体（10）的外周，作为附接到高炉主体的装置，将氮气吹入炉内; 沿着第一管道（20）安装的第二管道（20'），在形成有入口部分的炉子的外端侧和形成出口部分的炉子的内端侧; 供水管，其通过穿透在所述第一管道（20）的一侧而形成在所述第一管道（20）和所述第二管道（20'）的外周之间; 与所述第一管道（20）的另一侧的外周连接的排水管（22g）。和一个保持器（24），其一侧可移除地安装在形成在第一管（20）的外周上的夹紧部分上，另一侧粘附到炉体金属壳体（10）上。

74. 发明公开

KR1020010064360A 고로 조업재개시 미분탄 자동취입시기 판단방법 失效
标题翻译：燃烧期间煤焦点自动喷射时间决定方法
公开(公告)号：KR1020010064360A
公开(公告)日：2001-07-09
申请号：KR1019990064537
申请日：1999-12-29
申请人： 주식회사 포스코
发明人： 김재식
IPC分类号： C21B9/00
CPC分类号： C21B7/16 , C21B5/003 , C21B7/24 , F27B1/16 , F27B1/26 , F27B1/28
摘要： PURPOSE: A method for deciding the automatic injection time of coal dust by detecting the state of a tuyere in the process of reblowing of the tuyere during reopening of a blast furnace is provided, which can recover atmospheric temperature in the furnace to the normal level within a short time and basically solve dangerous working. CONSTITUTION: The subject method comprises the following steps of: converting to an injection waiting mode of coal dust when air volume is over a setting value; injecting coal dust after converting to the injection mode of coal dust by deciding the rising time of a drainage temperature to the time in which the block of a tuyere(33) is absolutely penetrated; and increasing the amount of oxygen as well as the total mount of coal dust by controlling the flow rate of a distributor(35) of coal dust and transport pipe in accordance with the destruction amount of the block of the tuyere is increased.
摘要翻译：目的：提供一种通过在高炉重新开放期间通过风口重新开风过程中检测风口状态来确定煤尘自动喷射时间的方法，其可以将炉内的大气温度恢复到正常水平时间短，基本解决危险工作。构成：主体方法包括以下步骤：当风量超过设定值时，转换为煤灰的注射等待模式; 通过将排水温度上升时间决定为绝对穿透风口块（33）的时间，将灰尘注入煤粉喷射模式后，注入煤尘; 并且通过根据风口块的破坏量控制煤粉和输送管的分配器（35）的流量来增加氧气的总量以及煤粉的总装载量。

75. 发明公开

KR1020010057232A 고로 휴풍가능시간 추정방법 无效
标题翻译：用于估算吹制炉中允许吹泡时间的方法
公开(公告)号：KR1020010057232A
公开(公告)日：2001-07-04
申请号：KR1019990059425
申请日：1999-12-20
申请人： 주식회사 포스코
发明人： 서영근 , 조종민
IPC分类号： C21B9/00
CPC分类号： C21B7/16 , C21B7/24 , F27B1/16 , F27B1/28
摘要： PURPOSE: A method is provided to accurately estimate an allowable blowing down time which is changed according to conditions inside a blast furnace by inserting a tuyere probe into the blast furnace through a tuyere during air blowing down of a blast furnace so as to measure a temperature inside the blast furnace, and estimating a temperature variation of molten materials based on the measured temperature inside the blast furnace. CONSTITUTION: The method for estimating allowable blowing down time in a blast furnace comprises the steps of deducing the change of a temperature inside a blast furnace depending on lapse of time after stopping of air blowing by measuring the temperature inside the blast furnace in a certain time interval using a tuyere probe after blowing down (S1,S2); calculating a distance from the tuyere to molten material in the blast furnace during blowing down period (S3); calculating the surface temperature of the molten material according to the lapse of time after blowing down using the temperature change inside the furnace (S4); and estimating the time that is taken to reach to a temperature in which the molten material starts to be hardened from the change of the surface temperature of molten material as an allowable blowing down time (S5).
摘要翻译：目的：提供一种方法，以准确地估计根据鼓风炉内的条件而改变的允许的吹送时间，其通过在高炉吹风吹入风扇期间通过风口将风口探针插入鼓风炉中以测量温度并根据高炉内的测量温度估算熔融材料的温度变化。构成：用于估计高炉中的允许吹风时间的方法包括以下步骤：在一定时间内测量高炉内的温度，推断出在停止吹气停止之后随时间推移的高炉内的温度变化吹风后使用风口探头进行间隔（S1，S2）; 计算吹风期间高炉中风口到熔融材料的距离（S3）; 使用炉内的温度变化来计算吹出后的经过时间的熔融材料的表面温度（S4）; 并且从熔融材料的表面温度的变化来估计熔融材料开始硬化的温度达到允许的吹送时间的时间（S5）。

76. 发明公开

KR1020010035987A 고로 노벽 열부하 억제장치 无效
标题翻译：用于限制火炉炉膛热负荷的装置
公开(公告)号：KR1020010035987A
公开(公告)日：2001-05-07
申请号：KR1019990042802
申请日：1999-10-05
申请人： 주식회사 포스코
发明人： 김재식 , 조봉래 , 김태선 , 이상호
IPC分类号： C21B5/00
CPC分类号： C21B7/16 , F27B1/16 , F27D2003/169
摘要： PURPOSE: An apparatus for restraining heat load of furnace wall of a blast furnace is provided to improve air permeability in a blast furnace by lowering pressure loss at front of a tuyere inside a blast furnace, and reduce heat load of furnace body by moving gas flow into the center of the blast furnace during combustion of pulverized coal. CONSTITUTION: The apparatus comprises a pulverized coal injection lance for injecting pulverized coal into a tuyere of a blast furnace, wherein an admission angle of the pulverized coal injection lance curves at an angle of 10 to 15 degrees so that the front end of the injection lance is positioned at area which is distanced 100 to 300 mm from the front end of the tuyere, and cooling devices installed at a joint area (19) with a tuyere of a blowing tube (17) to inside of which the pulverized coal injection lance is extended, wherein the cooling devices protect the forward arranged pulverized coal injection lance from heat of a high temperature in an apparatus for restraining heat load of furnace wall of a blast furnace comprising a pulverized coal injection lance injecting pulverized coal through a tuyere formed at lower part of the blast furnace.
摘要翻译：目的：提供一种用于抑制高炉炉壁热负荷的装置，通过降低高炉风口前方的压力损失，提高高炉的透气性，并通过移动气流减少炉体的热负荷在粉煤燃烧期间进入高炉的中心。构成：该装置包括用于将粉煤喷入高炉风口的粉煤喷射枪，其中粉煤喷枪的入射角以10度至15度的角度弯曲，使得喷枪的前端位于与风口前端距离100〜300mm的区域，以及冷却装置，其安装在具有吹管（17）的风口的接合区域（19）处，其内部的粉煤喷射枪是其特征在于，所述冷却装置通过形成在所述下部的风口的风口将通过喷射粉煤的粉煤喷枪喷射的高炉炉壁的热负荷抑制装置中保护前方排出的粉煤喷射枪免受高温热的装置的高炉。

77. 发明公开

KR1020010010274A 이중관을 이용한 미분탄 취입장치 失效
标题翻译：使用双管注射喷粉的装置
公开(公告)号：KR1020010010274A
公开(公告)日：2001-02-05
申请号：KR1019990029067
申请日：1999-07-19
申请人： 주식회사 포스코
发明人： 정진경 , 육상석 , 조봉래 , 김갑열
IPC分类号： C21B5/00
CPC分类号： C21B7/163 , C21B5/003 , F27B1/16
摘要： PURPOSE: An apparatus for injecting pulverized coal using a double pipe is provided to reduce fuel costs and prevent accumulation of incombustible dust so that stable conditions of a furnace can be achieved by providing an oxygen enriched method in which combustibility of pulverized coal is increased, thereby is improved combustibility. CONSTITUTION: A pulverized coal injecting apparatus(1) using a double pipe is equipped with a cylindrical inner pipe(142) and a cylindrical outer pipe(145) surrounding the inner pipe(142). A spiral channel(148) is formed on the surface of the inner pipe(142). A pulverized coal is injected inside the inner pipe(142), and oxygen is injected between the inner pipe(142) and the outer pipe(145) so that pulverized coal can be injected into a tuyere of a blast furnace. Grooves(10) are formed on part of apex surface of the inner pipe(142), and W/D is 0.5 to 4 when a depth of the grooves(10) is D, and a width of the grooves(10) is W.
摘要翻译：目的：提供一种使用双管喷射粉煤的设备，以减少燃料成本并防止不可燃粉尘的积聚，从而通过提供粉煤的可燃性增加的富氧方法来实现炉的稳定条件，由此燃烧性提高。构成：使用双管的粉煤喷射装置（1）配备有围绕内管（142）的圆筒形内管（142）和圆筒形外管（145）。螺旋通道（148）形成在内管（142）的表面上。在内管（142）内部注入粉煤，在内管（142）和外管（145）之间注入氧气，将粉煤喷入高炉风口。在内管（142）的顶面的一部分上形成有槽（10），槽（10）的深度为D时，W / D为0.5〜4，槽（10）的宽度为W 。

78. 发明公开

KR1020010004067A 고로의 노심 활성화 방법 无效
标题翻译： BLAST FORENACE的核心活动方法
公开(公告)号：KR1020010004067A
公开(公告)日：2001-01-15
申请号：KR1019990024660
申请日：1999-06-28
申请人： 주식회사 포스코
发明人： 이상호 , 최을용 , 김재식
IPC分类号： C21B5/00
CPC分类号： C21B5/00 , C21B7/163 , F27B1/16
摘要： PURPOSE: A method for activating core of blast furnace is achieved by providing air inside a cokes layer of the core after resting period of blast furnace and before re-blowing air into tuyere. CONSTITUTION: A method for activating core of blast furnace is performed by using a blast furnace with specific structure comprising a pipe communicated with an exterior air supplying part through a tuyere. The pipe is passed through a surface of the cokes in the core to provide air inside the cokes layer. The pipe is at least 1500mm in length and 40mm or more in diameter. Also, the pipe has multiple through holes having about 10-20mm in diameter at 30-50% of area apart from its front end. By this structure, air is provided inside the cokes layer after resting period of the furnace and before re-blowing air into the tuyere.
摘要翻译：目的：通过在高炉静置期后，将空气再次吹入风口之前，通过在核心的焦炭层内提供空气来实现激活高炉铁芯的方法。构成：通过使用具有特定结构的高炉，通过风口与外部空气供给部件连通的管道进行激活高炉炉芯的方法。管通过核心中的焦炭表面以在焦炭层内提供空气。管道长度至少为1500mm，直径为40mm以上。此外，管道具有多个通孔，直径约为10-20mm，距其前端的面积的30-50％。通过这种结构，在炉的静置时间之后并且在将空气再吹入风口之前，在焦炭层内部提供空气。

79. 发明授权

KR101789558B1 고로의 송풍구부 구조 有权
公开(公告)号：KR101789558B1
公开(公告)日：2017-11-20
申请号：KR1020147031978
申请日：2013-05-10
申请人： 신닛떼쯔 수미킨 엔지니어링 가부시끼가이샤 , 엔에스 플랜트 디자이닝 코포레이션
发明人： 키타가와토시야 , 후루타치쇼지 , 이시카와히로노부
IPC分类号： C21B7/16
CPC分类号： C21B7/163 , C21B7/106 , F27B1/14 , F27B1/16 , F27B1/24 , F27D1/045 , F27D1/12 , F27D2009/0002
摘要： 가스누출을방지할수 있음과아울러, 노체측과환상관측의열 변형의상위를흡수하면서송풍구의선단위치를노체의소정위치로유지할수 있는고로의송풍구부구조를제공한다. 고로의송풍구부구조(20)는철피(21)에고정된블로우파이프(31)와, 블로우파이프(31)의선단에고정된송풍구부(30)와, 블로우파이프(31)와송풍지관(33)을접속하는플렉시블조인트(34)를구비한다. 송풍구(32) 주변의철피(21)의내측에는송풍구부스테이브쿨러(23)가설치되고, 이스테이브쿨러(23)가노 내면을형성하고있다.

80. 发明公开

KR1020170109043A 고로 조업 방법 审中-实审
标题翻译：如何操作高炉
公开(公告)号：KR1020170109043A
公开(公告)日：2017-09-27
申请号：KR1020177024451
申请日：2016-02-22
申请人： 제이에프이 스틸 가부시키가이샤
发明人： 무라오아키노리 , 야마모토나오키 , 가와시마토모유키 , 오오야마노부유키
IPC分类号： C21B5/00 , C21B7/16 , C21B9/10
CPC分类号： C21B5/003 , C21B5/00 , C21B5/001 , C21B7/00 , C21B7/16 , C21B7/163 , C21B2005/005 , F23L15/04 , F27B1/16 , F27D7/02 , F27D17/00 , C21B9/10
摘要： 미분탄등의고체연료의연소효율을향상시킴으로써, 생산성향상및 배출 CO의저감을가능하게하는고로조업방법을제공한다. 이중관으로구성되는상류측랜스(4)로부터미분탄및 산소를취입하고, 그열풍송풍방향하류측의하류측 랜스(6)로부터 LNG를취입함으로써, LNG의연소로사용되는산소가상류측랜스(4)로부터보급되고, LNG의연소에의해승온한미분탄이공급된산소또는송풍내의산소와함께연소한다. 열풍의송풍방향에대하여수직인방향을 0 °로하고, 그보다도열풍송풍방향하류방향을정, 상류방향을부로한 경우에, 하류측랜스(6)로부터의 LNG의송풍방향에대한취입방향을 -30°∼+45°의범위로하고, 상류측랜스(4)가송풍관(2)에꽂아넣어져있는위치를기준으로하여, 하류측랜스(6)로부터의 LNG의취입위치를, 송풍관원주방향각도로 160°∼200°의범위로한다.
摘要翻译：本发明提供一种高炉操作方法，其能够通过提高粉煤等固体燃料的燃烧效率来提高生产率并减少排放CO。通过吹入粉煤，并从上游侧喷枪（4）组成的双管的氧气，并从热空气吹送到LNG在下游侧的方向上吹送下游喷枪6，使用梭罗LNG氧气喷枪的坚决上游（4）并且由LNG燃烧加热的煤粉与所供给的氧气或氧气一起在吹入空气中燃烧。如果一个而也将热空气的吹出方向下游方向垂直于0°的方向，并且，相对于所述热空气恒定，上行方向的一部分，从喷枪的下游侧的LNG的送风方向的送风方向的送风方向（6）的 -30°〜+ 45°的范围内的顶部，并在上游侧喷枪（4），它们通过插入鼓风管（2），从下游侧喷枪的LNG uichwi口位置（6），鼓风管圆周方向加载的位置的基础上角度在160°和200°之间。

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