专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH0972792A HEAT FLUX MEASURING DEVICE 失效
公开(公告)号：JPH0972792A
公开(公告)日：1997-03-18
申请号：JP25444295
申请日：1995-09-07
申请人： NIPPON STEEL CORP , KAWASO DENKI KOGYO
发明人： SEKIYA MASAHIRO , ANZAI OSAMU , MORI KEIICHI , IGAWA OSAMU
IPC分类号： G01K7/02 , G01K7/08 , G01K17/20
摘要： PROBLEM TO BE SOLVED: To accurately measure heat flux in a metal by using a metal itself to be measured as one thermoelectromotive force material of a thermocouple and setting the other thermoelectromotive force material as a concentric ring type. SOLUTION: A constantan rod 10 is pressed against a measurement target by a press spring 18 to improve contact property. Also, a scale 19 is attached to the end of the constantan rod 10, thus telling the pressed length of the constantan rod 10 when a measuring device is pressed to the measurement target at a glance. Namely, the distance between two points (between the tip of the constantan rod 10 and that of a constantan chip 20) of the constantan being in contact with the measurement target can be immediately determined from the value. On the other hand, the tip of the constantan rod 10 is sharpened so that it contacts the measurement target at one point. Further, the constantan chip 20 is sharpened to enable a constantan ring 11 to be in contact with the measurement target at one point and heat extraction from the measurement target is minimized, thus contributing to the improvement of measurement accuracy. Also, an insulation member 21 is provided for insulation.

2. 发明专利

JP2000247693A PRODUCTION OF FINE AGGREGATE BY WATER-GRANULATION AND SLAG DISTRIBUTION APPARATUS 失效
公开(公告)号：JP2000247693A
公开(公告)日：2000-09-12
申请号：JP5352699
申请日：1999-03-02
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： TODA YUJI , MATSUMURA MASAAKI , MAZAWA MASATO , ANZAI OSAMU , NAKAGOME TOMOMICHI , IWANAGA TAKEICHI , KUZE SHUNSUKE
IPC分类号： C04B5/02
摘要： PROBLEM TO BE SOLVED: To efficiently produce front-of-the-furnace water-granulated slag for the concrete fine aggregate by distributing molten slag discharged from a blast furnace to a water-granulating equipment and other equipments while controlling the amount of the molten slag to the water-granulating equipment. SOLUTION: A means 3 for allowing a molten slag ladle 2 to incline is provided at the molten slag ladle 2 which receives molten slag discharged from a blast furnace and distributes the slag to plural directions. Plural slag discharging ports 5, 6 are provided perpendicular to the inclination direction by the means 3 for allowing the molten slag ladle 2 to incline, at the upper part of the molten slag pan 2. The amount of molten slag flowing out from each discharging port is controlled by allowing the molten slag ladle 2 to incline while changing positional relationship in height.

3. 发明专利

JPH11199909A STAVE COOLER FOR BLAST FURNACE AND STRUCTURE FOR HOLDING MONOLITHIC REFRACTORY AT BACK SURFACE PART THEREOF 失效
公开(公告)号：JPH11199909A
公开(公告)日：1999-07-27
申请号：JP1200498
申请日：1998-01-07
申请人： NIPPON STEEL CORP
发明人： ANZAI OSAMU , SAKAMOTO AIICHIRO , NAKAGOME TOMOMICHI , IMUDA AKIRA , WATANABE KAZUYOSHI
IPC分类号： C21B7/10 , F27D1/12
摘要： PROBLEM TO BE SOLVED: To surely hold monolithic refractory at the back surface part of a stave cooler for blast furnace in order to cool the furnace wall part of the blast furnace so as not to fall down even in the case of partially exposing this refractory to the furnace gas. SOLUTION: Studs 2 are arranged at the back surface iron shell side of the stave cooler 1 for blast furnace. Further, the stave cooler 1 for blast furnace is disposed in the blast furnace along the inner surface shape of the iron shell 3, and the studs 2 are arranged also in water cooling piping 5 disposed between the stave cooler 1 for blast furnace and the iron shell 3. The monolithic refractory 4 filled on the back surface of the stave cooler 1 for blast furnace is held with these studs 2. The protecting effect of the iron shell is raised and the stable producing operation can be continued by reducing the heat and the physical loads given to the iron shell on the outer surface of the blast furnace.

4. 发明专利

JPH10237527A DESILICONIZATION CONTROL OF HOT METAL 失效
公开(公告)号：JPH10237527A
公开(公告)日：1998-09-08
申请号：JP6022597
申请日：1997-02-28
申请人： NIPPON STEEL CORP
发明人： ABE YUICHI , KAKIUCHI KAZUMOTO , ANZAI OSAMU
IPC分类号： C21C1/04
摘要： PROBLEM TO BE SOLVED: To provide a control method of desiliconization at the casting bed of the hot metal to perform the desiliconization by charging a desiliconizing agent in the hot metal discharged from a blast furnace. SOLUTION: The desiliconizing agent addition pattern control function is provided with the table of a desiliconizing agent addition pattern control 10 formed by accumulating actual data such as actual desiliconization control condition and desiliconization treatment of the actual addition quantity of the desiliconizing agent and forming condition, and the desiliconizing agent addition pattern suitable for the desiliconization treatment condition can be automatically selected. In order to perform the desiliconization at the casting bed of silicon contained in the hot metal, an initial set value of the desiliconization treatment condition is inputted in a process computer provided with the function of the desiliconizing agent addition pattern control 10, the desiliconizing agent addition pattern suitable to the initial set value is automatically selected, and the addition of the desiliconizing agent is controlled by an electric control system based on the selected desiliconizing agent addition pattern.

5. 发明专利

JPH07207310A OPERATION OF PROTECTING SIDE WALL OF FURNACE BOTTOM OF BLAST FURNACE 失效
公开(公告)号：JPH07207310A
公开(公告)日：1995-08-08
申请号：JP1880894
申请日：1994-01-20
申请人： NIPPON STEEL CORP
发明人： ANZAI OSAMU , KAKIUCHI KAZUMOTO
IPC分类号： C21B5/00 , C21B7/06
摘要： PURPOSE:To prevent the generation of succeeding corrosion of a brick protecting layer and the erosion of the brick itself, etc., by taking the protecting countermeasure for the side wall part of a furnace bottom in accordance with the absolute value of the temp. indicated by a thermocouple. CONSTITUTION:The temp. at the side wall part of the furnace bottom is continuously measured by the thermocouple, and at the time of recognizing the temp. rising, the residual amount of the brick protecting layer is estimated from the relation between the indicated temp. before starting the temp. rising and temp. variable per the unit time. As the protecting countermeasure for the side wall of the furnace bottom, either one of the increase of charged TiO2, blast reduction and blowing down is executed in accordance with the residual amount.

6. 发明专利

JPH10245611A METHOD FOR CONTROLLING HOT STOVE 失效
公开(公告)号：JPH10245611A
公开(公告)日：1998-09-14
申请号：JP5304497
申请日：1997-03-07
申请人： NIPPON STEEL CORP
发明人： ABE YUICHI , ANZAI OSAMU
IPC分类号： C21B9/00
摘要： PROBLEM TO BE SOLVED: To provide a control method of a hot stove which improves the unit requirement of fuel and the thermal efficiency and prevents excess combustion and insufficient combustion. SOLUTION: In the control method of the combustion in the hot stove, a mixed ratio of coke oven gas in the flow rates of blast furnace gas, coke oven gas and air for combustion needed at this time, is calculated based on the preset flow rates of the blast furnace gas, coke oven gas and air for combustion needed to the combustion and corrected to the suitable value, and the blasting condition and combustion starting condition at this time, are changed to succeed the combustion. Successively, at the same time of judging whether the supply of the coke oven gas for combustion is to stop of not at the latter half of the combustion, the flow rates of the blast furnace gas and the air for combustion are calculated to execute the combustion control. Further, the stop of supply of the coke oven gas and the supplying quantities of the blast furnace gas and the air for combustion are calculated and controlled to the optimum ratio of the air and the fuel. Further, the ratio of the air and the fuel is corrected from the difference between the target O2 concn. in the exhaust gas and the actual O2 concn. in the exhaust gas to control the CO concn.

7. 发明专利

JPH06341766A IN-FURNACE HANGING TYPE SPRAYER HAVING ROTARY NOZZLE 失效
公开(公告)号：JPH06341766A
公开(公告)日：1994-12-13
申请号：JP12972393
申请日：1993-05-31
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： MATSUO TAIYO , KURODA KOTARO , SEKI KAZUNORI , KOJIMA AKIRA , SATO TAKAYOSHI , ANZAI OSAMU
IPC分类号： C21B7/06 , B05D3/12 , F27B1/14 , F27D1/16
摘要： PURPOSE:To effect an efficient cleaning of a previously determined spray surface by detachably attaching a choke nozzle ejecting compressed air to a spray nozzle, in a spraying device consisting of a sprayer equipped with the spray nozzle, and hung rotatably in a furnace. CONSTITUTION:Upon spraying work, a sprayer 2 is introduced from the upper opening of main body 1 of a blast furnace at first and is hung by a hanging body 3. Next, an electric which 5 is operated utilizing the marking of a hanging chain 4 to position the sprayer 2 at a predetermined height. Subsequently, the spray nozzle 6 is turned to effect spraying. In this case, a choking nozzle 12 is attached to the spray nozzle 6 detachably by attaching a pin 15 to the pin hole 14 of an engaging unit 13. Compressed air is ejected out of the choking nozzle 12 previously whereby a previously determined spray surface A is cleaned efficiently. On the other hand, the number of rotation as well as the supplying amount of water of the spray nozzle 6 and the operation of the electric winch 5 are controlled respectively by a control board 7 and a neck-hanging control board 8.

8. 发明专利

JPH06341765A IN-FURNACE HANGING TYPE SPRAYING MACHINE HAVING ROTARY NOZZLE 失效
公开(公告)号：JPH06341765A
公开(公告)日：1994-12-13
申请号：JP12972293
申请日：1993-05-31
申请人： KUROSAKI REFRACTORIES CO , NIPPON STEEL CORP
发明人： MATSUO TAIYO , KURODA KOTARO , SEKI KAZUNORI , KOJIMA AKIRA , ENDO MASAMI , ANZAI OSAMU
IPC分类号： C21B7/06 , F27B1/14 , F27D1/16
摘要： PURPOSE:To improve the accuracy of spraying and simplify the whole of a facility by a method wherein a power hoisting mechanism for a hanging body, hanging a sprayer in a furnace, is controlled through remote control and the sprayer is provided with a rotary nozzle capable of being inched while a utility hose is operated synchronously. CONSTITUTION:Upon spraying work, a sprayer 2 is introduced from the upper opening of the main body 1 of a blast furnace at first to hang the sprayer by a hanging body 3. Next, an electric winch 5 is operated utilizing the marking of a hanging chain 4 to position the sprayer 2 at a predetermined height. Subsequently, a spray nozzle 6 is turned to effect spraying. In this case, the number of rotation and the amount of supplying water of the spray nozzle 6 as well as the operation of the electric winch 5 are controlled respectively by a control board 7 and a neck-hanging control board 8. According to this method, the spray nozzle 6 can be turned and inched up-and-down by remote control whereby spraying accuracy is improved. On the other hand, the hanging body 18 of an utility hose, connected to the feed water pipe 11 of a feed water tank 10, is also operated synchronously with the hanging body 3 of the sprayer 2.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式