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1. 发明专利

JPS61149408A OPERATING METHOD OF RAW MATERIAL STORAGE INSTALLATION FOR BLAST FURNACE 失效
公开(公告)号：JPS61149408A
公开(公告)日：1986-07-08
申请号：JP27527084
申请日：1984-12-25
申请人： KAWASAKI STEEL CO
发明人： YASUMOTO TOSHIHARU , TOMITA SADAO
IPC分类号： C21B7/18 , B65G65/40
摘要： PURPOSE:To maintain always the specified sieving efficiency and to stabilize the operation of a blast furnace by adjusting the feeding and supplying rate of the raw material from each raw material hopper to a sieving machine according to the raw material storage quantity in the raw material hopper thereby maintaining the specified load of the sieving machine. CONSTITUTION:The previous remaining quantity of a storage device 15 is corrected by a calculator 14 from the weight difference between in/out of a detector 11 for the weight of the charge in the raw material hopper and a detector 13 for the feeding rate of each hopper. The remaining quantity of the device 15 is compared and discriminated according to the conditions of a feeding rate setter 16 for every kind of the same raw material and the set value of the feeding rate of every raw material hopper is calculated in such a manner that the total feeding rate of the same raw material and attains the predetermined rate. The calculated set value is stored in a comparator 18 for the feeding rate of each raw material hopper and is determined as the reference rate to stop a feeding device 19. The device 19 starts feeding upon receipt of the signal from a sequencer 20 for charging to the blast furnace and thereafter the stopping of the device 19 is individually executed for every hopper so as to obtain the prescribed feeding rate from the comparison with the detector 13 by the comparator 18.

2. 发明专利

JPS58144432A OPERATION FOR SINTERING 失效
公开(公告)号：JPS58144432A
公开(公告)日：1983-08-27
申请号：JP2779282
申请日：1982-02-23
申请人： KAWASAKI STEEL CO
发明人： NIKO KIYOSUKE , YASUMOTO TOSHIHARU , KASAHARA TAKUMI , KIMURA MITSUZOU
IPC分类号： C22B1/20
摘要： PURPOSE:To stabilize the quality of sintered ore, by adjusting the distribution of the air-flow velocity of inhaled air or the like in a manner such that the distributions of heat-retaining and cooling indices obtained by calculating the model of a numerical formula is set in a predetermined range along the depth of a layer in a pallet. CONSTITUTION:The known model of a sintering numerical formula comprising the heat and material balances of gases and solid matter in a layer to be sintered is used. From said model of the numerical formula, the mixing ratio, particle size, density and wter content of a raw material and auxiliary material, the thickness of a layer, the speed of a pallet and the condition of an igniting oven are found as data on operation, and a plurality of heat patterns along the depth of the layer is obtained using the distribution of the wind velocity of inhaled air measured during sintering. From these heat patterns, the distributions of heat- retaining and cooling indexes along the depth of the layer are calculated. In succession, the distribution of the air-flow velocity of inhaled air or the distribution of a carbon source along the depth of the layer is adjuted in a manner such that the former distribution is set in a predetermined range.

3. 发明专利

JPS6017007B2 失效
公开(公告)号：JPS6017007B2
公开(公告)日：1985-04-30
申请号：JP14242381
申请日：1981-09-11
申请人： KAWASAKI STEEL CO
发明人： YASUMOTO TOSHIHARU , NIKO SEISUKE , GOTO TAKASHIGE , IIDA OSAMU
IPC分类号： C22B1/20

4. 发明专利

JPS59193155A Crushing of coal material 失效
标题翻译：粉碎煤材
公开(公告)号：JPS59193155A
公开(公告)日：1984-11-01
申请号：JP6697183
申请日：1983-04-18
申请人： Kawasaki Steel Co
发明人： NAKAJIMA KAZUMA , YASUMOTO TOSHIHARU , TANIGAWA KAZUO
IPC分类号： B02C25/00

5. 发明专利

JPS59129379A Method of operating dwight-lloyd sintering machine 失效
标题翻译： DWOT-LLOYD烧结机的操作方法
公开(公告)号：JPS59129379A
公开(公告)日：1984-07-25
申请号：JP368983
申请日：1983-01-13
申请人： Kawasaki Steel Co
发明人： NAKAJIMA KAZUMA , YASUMOTO TOSHIHARU
IPC分类号： C22B1/20 , F27B21/06

6. 发明专利

JPS5569228A MANUFACTURE OF SINTERED IRON ORE 失效
公开(公告)号：JPS5569228A
公开(公告)日：1980-05-24
申请号：JP14178378
申请日：1978-11-16
申请人： KAWASAKI STEEL CO , HITACHI SHIPBUILDING ENG CO
发明人： FUKUTOME MASAHARU , KODAMA TAKUMA , YASUMOTO TOSHIHARU , TAMEI AKIRA , MATSUO KAZUYOSHI
IPC分类号： C22B1/20 , F27B21/06
摘要： PURPOSE:To enhance the reduction powdering resistance of sintered ore by controlling the oxygen concn. of a sucked gas for sintering in manufacture of the ore for a blast furnace in a Dwight-Lloyd type sintering machine. CONSTITUTION:The sintering zone of pallet moving line 19 of the Dwight-Lloyd type sintering machine is divided into the first half and the second half portion in a ratio of 1-0.3:1. The strand of the second half portion is covered with hood 24. Exhaust gas of a low oxygen concn. from all of wind boxes 20 of the machine is sucked through dust collector 21 and exhaust fan 22. Part of the gas is released into flue 27 after desulfurization and denitration 25. The remainder is fed into hood 24. Air is also fed into hood 24 with air fan 28 through electric-powered damper 29 to control the oxygen concn. of the sucked gas for sintering in hood 24. Thus, sintered ore on pallet 19 is uniformly provided with superior reduction powdering resistance independently of the upper and the lower layer.

7. 发明专利

JPS54130403A MANUFACTURE OF SINTERED IRON ORE 失效
公开(公告)号：JPS54130403A
公开(公告)日：1979-10-09
申请号：JP3841578
申请日：1978-03-31
申请人： KAWASAKI STEEL CO , HITACHI SHIPBUILDING ENG CO
发明人： FUKUTOME MASAHARU , KODAMA TAKUMA , YASUMOTO TOSHIHARU , KITAZAWA KOUJI , TAMEI AKIRA , MATSUO KAZUYOSHI
IPC分类号： C22B1/20
摘要： PURPOSE:To manufacture constantly sintered ore low in index for reduction and collapse, by contolling oxygen concn. of suction gas for sintering in the second half of sintering zone of a iron-ore-sintering machine. CONSTITUTION:In manufacturing sintered ore for use in a blast furnace by use of DL sintering machine, the ratio of the number of wind box 2 in the first half of the sintering zone to that 5 in the second half is set at 1-0.3:1. In addn., the exhaust gas 3 from the first half wind boxes 2 is led to the hood 9 installed above the second half sintering zone. Bed ore and sintering raw material are laid on the pallet 1 of the sintering machine, ignited by ignition furnace 19, and sintered while the pallet 1 being moved. In that case, the exhaust gas discharged from the first half wind boxes 2 is introduced to the hood 9 of the second half sintering zone, where it is mixed with air 10 from an air fan 12, so that oxygen content is adjusted to 10- 12 %. Hereby, reduction- and pulverization-resistance of the sintered ore in both upper and under layers are improved. Because a portion of exhaust gas is used, equipment cost and operation cost for treating exhaust gas (dust collection, desulfurization, denitration) are reduced.

8. 发明专利

JPS626619B2 失效
公开(公告)号：JPS626619B2
公开(公告)日：1987-02-12
申请号：JP2779282
申请日：1982-02-23
申请人： KAWASAKI STEEL CO
发明人： NIKO KYOSUKE , YASUMOTO TOSHIHARU , KASAHARA TAKUMI , KIMURA MITSUZO
IPC分类号： C22B1/20

9. 发明专利

JPS5845337A DETECTION OF COMPLETION POINT OF CALCINATION IN DL TYPE SINTERING MACHINE 失效
公开(公告)号：JPS5845337A
公开(公告)日：1983-03-16
申请号：JP14242381
申请日：1981-09-11
申请人： KAWASAKI STEEL CO
发明人： YASUMOTO TOSHIHARU , NIKO SEISUKE , GOTOU TAKASHIGE , IIDA OSAMU
IPC分类号： C22B1/20
摘要： PURPOSE:To detect the completion point of sintering accurately and to stabilize the operations of a DL type sintering machine by measuring the thickness of the sintering layer in the longitudinal direction of the machine changing with the movement of pallets and measuring the point of inflection where the rate of decrease in the thickness of said measured layer per time changes sharply. CONSTITUTION:The rate D of a change in the thickness of a raw material sintering layer 4 emerged from an ignition furnace in the longitudinal direction of the pallets of a sintering machine, that is, in the longitudinal direction of the machine is measured with a thickness measuring device, and the rate Di of decrease in the layer thickness is calculated. The point of inflection where the curve of the rate Di changes conspicuously is measured and said point can be determined as the completion point of sintering. An ultrasonic rangefinder 5 or the like which can scan over the surface of the raw materials on the pallets by traveling forward and backward in the same direction as the moving direction of the pallet is utilized for measuring the rate Di, which is calculated by measuring the transition of the levels L0, L3 of the surface layer of the sintering layer.

10. 发明专利

JPS569335A MEASUREMENT OF SINTERING SPEED 失效
公开(公告)号：JPS569335A
公开(公告)日：1981-01-30
申请号：JP8455079
申请日：1979-07-04
申请人： KAWASAKI STEEL CO
发明人： OOTA RIYOUICHI , YASUMOTO TOSHIHARU
IPC分类号： C22B1/20 , F27B21/14
摘要： PURPOSE:To exactly grasp the sintering speed and make the operational control of a sintering machine much easier by providing a case fitted with a temperature sensor to one grate bar inside the pallet of a Dwight-Lloyd process sintering machine. CONSTITUTION:At least one of a great number of grate bars constituting the pallet of a Dwight-Lloyd process sintering machine is provided upwardly with one or two or more cases 3 fitted with the temperature sensors 4a and 4b, e.g., thermocouples, etc., whose temperature-sensitive portion on its tip is slightly projected from the side of the cases 3 and arranged in almost parallel with the surface of the grate bar 2. With the temperature sensors 4a and 4b, the temperature inside the sintering layer is measured by a temperature-measuring means 6 to obtain the temperature distribution in the sintering layer, the sintering speed of ores being sintered is continuously grasped by an arithmetical unit 7, and then thereby the sintering condition of the sintering machine is properly controlled to stabilize the sintering operation.

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