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1. 发明专利

JPH05142111A SAMPLING DEVICE OF INSERTED OBJECT IN BLAST FURNACE 失效
公开(公告)号：JPH05142111A
公开(公告)日：1993-06-08
申请号：JP30356091
申请日：1991-11-19
申请人： KOBE STEEL LTD
发明人： MATSUI YOSHIYUKI , NAGATA IKUO , GOTO TETSUYA , FURUNO HIDEO
IPC分类号： B01L99/00 , C21B5/00 , G01N1/04
摘要： PURPOSE:To obtain a sampling device of an inserted object which measures a particle diameter distribution in diameter direction of an inserted object within a furnace. CONSTITUTION:A title item is constituted of a wire concentration box 1 with wire-mounting shaft 7 and 8 at left and right edges between two parallel metal plates 5 and 6 and guide shafts 9 and 10 at lower and upper portions at a central part, a weight 2 for vertical installation, a guide rod 3 which is mounted to a hole 14 which is provided at a central portion of the weight 2 for vertical installation so that can be slid, and a sampling box 4 which is provided at a lower edge of the quite rod 3. Then, wires 12 and 13 for migration are mounted to the wire-mounting shafts 7 and 8 at left and right edges of the wire-concentration box 1 and then wire 17 where the weight 2 is provided vertical at one of the upper and lower guide shafts 9 and 10 at the central part is connected to a wire 23 for descent and ascent of sampling box 4 which is mounted to an upper edge of the guide rod 3 at the other.

2. 发明专利

JPH04202613A OPERATING METHOD FOR BLAST FURNACE 失效
公开(公告)号：JPH04202613A
公开(公告)日：1992-07-23
申请号：JP33630690
申请日：1990-11-29
申请人： KOBE STEEL LTD
发明人： MIYATANI HITOSHI , HORI RYUICHI , ONO REIJI , GOTO TETSUYA
IPC分类号： C21B5/00 , C21B7/16
摘要： PURPOSE:To control rise and fluatuation in pressure of hot blast and to perform stable operation without impairing furnace wave by providing burners while penetrating the blowpipe of tuyeres and blowing both auxiliary fuels of pulverized coal and heavy oil from the independent tuyeres through the burners in the case of operating a blast furnace in which the auxiliary fuels are utilized. CONSTITUTION:Two pieces of burners 1, 2 for blowing auxiliary fuels are provided so that the tip parts thereof are opened in the tuyeres by penetrating the blowpipe 3 of the tuyeres 4 for blowing hot blast in the case of operating a blast furnace in which pulverized coal and heavy oil are used as the auxiliary fuels. Rise and fluctuation in the blowing pressure of hot blast are controlled and operation is continuously performed with the stable furnace wave by separately holding both the tuyere 4 for blowing pulverized coal and the tuyere 4 for blowing heavy oil and blowing both auxiliary fuels.

3. 发明专利

JP2007277712A Mixed powder for powder metallurgy, green compact thereof and sintered compact 有权
标题翻译：粉末冶金粉末冶金粉末冶金粉末冶金粉末冶金
公开(公告)号：JP2007277712A
公开(公告)日：2007-10-25
申请号：JP2007062444
申请日：2007-03-12
申请人： Kobe Steel Ltd , 株式会社神戸製鋼所
发明人： FUJIURA TAKAYASU , YAKOU YASUKO , NISHIDA SATOSHI , TANIGUCHI YUJI , GOTO TETSUYA
IPC分类号： B22F1/00 , C22C33/02 , C22C38/00
摘要： PROBLEM TO BE SOLVED: To provide a mixed powder for powder metallurgy reduced in dust generation and segregation of a carbon-supplying component, a green compact having excellent mechanical characteristics, and a mixed powder for powder metallurgy producible of a sintered compact.
SOLUTION: The mixed powder for powder metallurgy containing an iron base powder and a carbon-supplying component, in which the carbon-supplying component (1) contains a graphite powder and a carbon black, and the mixing ratio between the graphite powder and the carbon black is within the range of graphite powder:carbon black = 25 to 85 parts by mass:75 to 15 parts by mass and (2) contains a carbon black having a dibutyl phthalate absorption of not more than 60 mL/100 g and a nitrogen adsorption specific surface area of not more than 50 m
2 /g at the highest ratio in the carbon supplying component.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种粉末冶金用混合粉末，其减少了碳供应部件的粉尘产生和偏析，具有优异的机械特性的生坯，以及用于粉末冶金的烧结体的混合粉末。＆lt; P＆gt;解决方案：含有铁基粉末和碳供给成分的粉末冶金用混合粉末，其中，碳供给成分（1）含有石墨粉末和炭黑，石墨粉末炭黑在石墨粉末的范围内：炭黑= 25〜85质量份：75〜15质量份，（2）含有邻苯二甲酸二丁酯吸收不大于60mL / 100g的炭黑并且在碳供应组分中以最高比例的氮吸附比表面积不大于50m 2 / SP / g。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2001316710A LAVAL TYPE TUYERE 失效
公开(公告)号：JP2001316710A
公开(公告)日：2001-11-16
申请号：JP2000129522
申请日：2000-04-28
申请人： KOBE STEEL LTD
发明人： HORI RYUICHI , MORIYA ITARU , YAMAZAKI JIRO , GOTO TETSUYA
IPC分类号： C21B7/16
摘要： PROBLEM TO BE SOLVED: To provide a Laval type tuyere which is easily manufactured and also, can respond to the change of the shape. SOLUTION: A Laval type ring 3 having a shrunk diameter part 9 of the shape satisfying the following formula (1) in the inner diameter part 8 at the interval from the rear end to the front end is fitted into the through-hole 4 of the tuyere body 2 provided with a water cooling structure 7 at the outside of the through-hole 4. d1>d2

5. 发明专利

JPH11140517A OPERATION OF BLAST FURNACE 失效
公开(公告)号：JPH11140517A
公开(公告)日：1999-05-25
申请号：JP30830897
申请日：1997-11-11
申请人： KOBE STEEL LTD
发明人： MATSUI YOSHIYUKI , SHIMIZU SHOKEN , GOTO TETSUYA , NOZAWA KENTARO , SAKANO SHUNTA
IPC分类号： C21B5/00
摘要： PROBLEM TO BE SOLVED: To provide an operational method of a blast furnace which stabilizes operation at the time of starting up the firing of the blast furnace and can stably shift into high O/C operation having >=5.0 O/C in a short time. SOLUTION: In the uppermost step of charged material layer at the time of filling the raw material before starting up the firing of the blast furnace, the high O/C charged material layer having >=5.0 O/C piled wt. ratio of ore (O) and coke (C) and different O/C, is formed. Plural charged material layers having different O/C are sampled as the piling condition from the high O/C charged material layer, and the charged material distributing condition in the furnace in the high O/C operation having >=5.0 O/C is pre-decided by obtaining the gas permeable resistance in those sampled high O/C charged material layers. Based on this condition, the distribution of the charged material after firing is controlled and the blast furnace operation is shifted into the high O/C operation having >=5.0 O/C.

6. 发明专利

JPH0711315A SEAL MATERIAL FOR PLUGGING TAPPING HOLE IN BLAST FURNACE AND ITS USING METHOD 失效
公开(公告)号：JPH0711315A
公开(公告)日：1995-01-13
申请号：JP15384793
申请日：1993-06-24
申请人： SHINAGAWA REFRACTORIES CO , KOBE STEEL LTD
发明人： HAYASE MASAHIRO , OMORI YOSHIO , MICHIHIRO OSAMU , OSHIMA RYUZO , OKADA TOSHITAKE , GOTO TETSUYA
IPC分类号： C21B7/12
摘要： PURPOSE:To surely fill mud material into a tapping hole by fitting a seal material composed of a refractory at the tip part of a mud gun, press-fitting this seal material to a press-fitting part of the mud gun in the tapping hole and filling the mud material. CONSTITUTION:The tip part 3a of the mud gun 3 is fitted into the press-fitting part 5 of the mud gun in a large diameter fitting part 4 formed at the outer end of the hole 2 for tapping penetrating the furnace wall 1 in a blast furnace, and the mud material M is charged into the hole 2 from the mud gun 3 to plug the tapping hole. At this time, the seal material 6 for plugging the tapping hole composed of refractory is fastened with a band 10 to the tip part 3a of the mud gun 3, and by pushing the mud gun 3 to the press-fitting part 5 of the mud gun to press-fit the seal material 5 to the press-fitting part 5, and the mud material M is filled into the tapping hole. By this method, the ruggedness caused by surface roughening developed in the press- fitting part 5 is absorbed by deformation of the seal material 6, and no gap state is resulted between the tip part 3a and the press-fitting part 5, so that the leakage of the mud material M is prevented and the sure plugging to the tapping hole is attained.

7. 发明专利

JP2001107116A BLASTING TUYERE FOR BLAST FURNACE 失效
公开(公告)号：JP2001107116A
公开(公告)日：2001-04-17
申请号：JP28653699
申请日：1999-10-07
申请人： KOBE STEEL LTD
发明人： ITO RYOJI , GOTO TETSUYA , NOZAWA KENTARO , MIYAGAWA KAZUYA
IPC分类号： C21B5/00 , C21B7/16
摘要： PROBLEM TO BE SOLVED: To provide a blasting tuyere, by which a stable and smooth operation in a blast furnace can be executed. SOLUTION: The blasting tuyere for blast furnace is formed in an elliptic shape whose inner diameter is the right and left direction is larger than that in the upper and lower direction in the cross sectional shape in the tuyere, and also, provided with a reduced diameter part of the shape satisfying the following formula (1) in the tuyere between the rear end part and the front end part. D1>D2 =d2

8. 发明专利

JP2001091484A PLASTIC MIXTURE COMBUSTION CALORIE MEASURING METHOD AND DEVICE 失效
公开(公告)号：JP2001091484A
公开(公告)日：2001-04-06
申请号：JP26534199
申请日：1999-09-20
申请人： KOBE STEEL LTD
发明人： OGAWA GAKUO , NAKAYAMA MAKIYUKI , TAKAOKA KATSUYA , MAENO SUMIHIKO , GOTO TETSUYA , NOZAWA KENTARO
IPC分类号： G01K17/00 , G01N21/35 , G01N21/3563 , G01N21/359 , G01N25/20 , G01N33/44
摘要： PROBLEM TO BE SOLVED: To provide a plastic mixture combustion calorie measuring method and device capable of measuring the combustion calorie under the plastic mixture state of mixing a plurality of plastic pieces. SOLUTION: An absorbance spectrum of a plastic mixture, or a measurement object is measured (S1). Assuming that the absorbance spectrum is linear sum of the absorbance spectra as a material simple substance, its coefficient is calculated by a multiple regression analysis (S2). Then, assuming that the obtained each coefficient value is the volume of the each component material, each weight is calculated by multiplied it by the density of the each component material (S3) and the obtained weight is multiplied by the combustion calorie per unit weight of each component material so as to calculate the combustion calorie of the plastic mixture (S4).

9. 发明专利

JP2000192119A METHOD FOR BLOWING AUXILIARY FUEL INTO BLAST FURNACE 失效
公开(公告)号：JP2000192119A
公开(公告)日：2000-07-11
申请号：JP37042598
申请日：1998-12-25
申请人： KOBE STEEL LTD
发明人： HORI RYUICHI , GOTO TETSUYA , NOZAWA KENTARO
IPC分类号： C21B5/00 , C21B7/00 , C21B7/16
摘要： PROBLEM TO BE SOLVED: To reduce the use of precise coke, by which auxiliary fuel blown into a blast furnace can stably be blown at the larger quantity than that in the case of blowing the auxiliary fuel from an auxiliary fuel blowing lance by using a Laval tuyere structure, e.g. in the case of blowing polyverized fine coal, at >=150 k/ton of pig iron in the pulverized fine coal blowing rate, further >=200 kg/ton of pig iron or >=300 kg/ton of pig iron in this rate. SOLUTION: In the blowing method of the auxiliary fuel into the blast furnace, by which the auxiliary fuel is blown into the blast furnace from the auxiliary fuel blowing tuyere of the constitution having the reduced diameter part smaller than the inner diameter of a blow pipe and the inner diameter of the top part of the tuyere in the tube in the interval from the neighborhood of the connecting part of the blow pipe connected with the tuyere and having the tip position of the auxiliary fuel blowing lance disposed at the tip part side of the tuyere from the reduce diameter part, the auxiliary fuel is blown and also, oxygen is blown from the auxiliary fuel blowing lance.

10. 发明专利

JPH08134518A DECISION OF LANCE POSITION FOR BLOWING PULVERIZED FINE COAL 失效
公开(公告)号：JPH08134518A
公开(公告)日：1996-05-28
申请号：JP27947894
申请日：1994-11-14
申请人： KOBE STEEL LTD
发明人： GOTO TETSUYA , SHIBATA KOUICHIROU , YAMAGATA HITOAKI , OKUDA TETSUHISA , NAKAYA TAKASHI , KITANO SHINJI , ITO RYOJI
IPC分类号： C21B5/00 , C21B7/00
摘要： PURPOSE: To prevent the increase in heat load at the lower part of a blast furnace and the erosion of a lance even in the case of blowing a large quantity of pulverized fine coal by setting the distance from the boundary position between a blast furnace tuyere and a blow pipe till the tip part of the lance to a specific range. CONSTITUTION: The tip part of the lance for blowing the pulverized fine coal is inserted into the blow pipe by penetrating the wall of the blow pipe for blowing hot blast connectively arranged to the blast furnace tuyere, and the pulverized fine coal blown from the lance is blown from the blast furnace tuyere together with the hot blast flowing in the blow pipe. In this method, the setting position of the lance is decided so that the distance L (mm) from the boundary position between the blast furnace tuyere and the blow pipe till the tip part of the lance satisfies the inequality 0.22×[PCR]+48.2

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