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1. 发明专利

JPH052730B2 失效
公开(公告)号：JPH052730B2
公开(公告)日：1993-01-13
申请号：JP3819585
申请日：1985-02-27
申请人： SUMITOMO METAL IND
发明人： KAWAGUCHI TAKAZO , SATO SHUN , MYAMOTO KEIZO , SHIMODA YOSHIO , HARAGUCHI MASATAKA
IPC分类号： C22B1/20

2. 发明专利

JPH028312A METHOD FOR BACK-WASHING LINE FOR BLOWING FINE POWDERED COAL FOR BLAST FURNACE 失效
公开(公告)号：JPH028312A
公开(公告)日：1990-01-11
申请号：JP15639288
申请日：1988-06-24
申请人： SUMITOMO METAL IND
发明人： NISHIKAWA HIDEMI , IWATA HIDEYUKI , SHIMODA YOSHIO
IPC分类号： C21B7/00
摘要： PURPOSE:To quicken back-washing in blowing line under good environment by blowing gas for back-washing from downstream of a blowing main pipe, introducing removing material into a fine powdered coal collector, blowing gas from downstream of branch blowing pipe, too, and introducing the removing material into an auxiliary collector. CONSTITUTION:The fine powdered coal collector 16 is arranged above a hopper 1, and neighborhood of the fine powdered coal supplying position in the blowing main pipe 4 and the fine powdered coal collector 16 are communicated with a main back-washing introducing passage 17. At the time of back-washing, the gas for back-washing of N2, etc., is sent under pressurizing through a valve 10 and the fine powdered coal clogging in the blowing main pipe 4 is introduced to the fine powdered coal collector 16 from the main back-washing introducing passage 17. Cleanfied gas is exhausted and the fine powdered coal is supplied into the hopper 1 and circulatedly used. On the other hand, an auxiliary back-washing introducing passage 21 is connected with outlet of a valve 14 and the branch blowing pipe 7 and the auxiliary collector 22 are communicated. At the time of back-washing the branch blowing pipe 7, the valves 13, 14 are opened to introduce the gas of N2, etc., and the clogging fine powdered coal is sent to the auxiliary collector 22. The separated fine powdered coal is discharged from lower discharging hole.

3. 发明专利

JPH01131010A PRODUCTION OF PULVERIZED COAL FOR BLOWING INTO BLAST FURNACE 失效
公开(公告)号：JPH01131010A
公开(公告)日：1989-05-23
申请号：JP28708087
申请日：1987-11-12
申请人： SUMITOMO METAL IND
发明人： ONO YOSHIYUKI , KOMATSU TORU , SHIMODA YOSHIO , KAWAGUCHI YOSHIZUMI
IPC分类号： C01B31/02 , C21B5/00
摘要： PURPOSE:To enhance the production potential for pulverized coal with relatively low installation cost by preliminary drying and crushing of raw coal before grinding it to the targeted particle size using a pulverizer. CONSTITUTION:In a process where raw coal is ground using a pulverizer while drying and preheating and fed with air to a pulverized coal storage hopper, preliminarily dried raw coal is subjected to a crusher to perform preliminary crushing followed by subjecting to a pulverizer to effect pulverization to the objective particle size. In the preliminary drying, the moisture content of the raw coal decreases from ca. 10-13% to ca. 7-10%. In the preliminary crushing, the particle size is pref. reduced so that the raw coal with a particle size of

4. 发明专利

JPS56139634A MANUFACTURE OF SINTERED ORE 失效
公开(公告)号：JPS56139634A
公开(公告)日：1981-10-31
申请号：JP4218780
申请日：1980-03-31
申请人： SUMITOMO METAL IND
发明人： SHIMODA YOSHIO , OKUDA MUNEAKI
IPC分类号： C22B1/16
摘要： PURPOSE:To stabilize the quality (reduction powdering rate) of sintered ore and reduce the coke unit by making use of the reactivity of coke blended as fuel with starting materials for sintered ore to decide the proper sintering time and the proper blending amount of coke. CONSTITUTION:When coke is blended with various starting materials for sintered ore, it is found that the reactivity of coke exerts a great influence on sintering factors, so the amount of coke is decided as follows: the relation between the reactivity of the coke and sintering factors such as sintering time, productivity and reduction powdering rate and the relation between the powdering rate and the coke blending rate are examined beforehand. In accordance with the examination results the amount of coke added to starting materials for sintering is made proper, or the proper sintering time is decided. Sintering is then carried out. Thus, superior effects are shown on the prevention of a change in the properties of sintered ore and the reduction of the amount of used coke.

5. 发明专利

JPS56122730A CONTROL METHOD FOR STORED RAW MATERIAL IN MINERAL BUNKER 失效
公开(公告)号：JPS56122730A
公开(公告)日：1981-09-26
申请号：JP2551980
申请日：1980-02-29
申请人： SUMITOMO METAL IND
发明人： SHIMODA YOSHIO
IPC分类号： B65G65/30
摘要： PURPOSE:To reduce the pulverization rate before a blast furnace for stored raw materials by actually measuring the stock level of the stored raw materials for taking out the raw materials to make mineral bunkers succesively vacant. CONSTITUTION:Mineral bunkers 121-128 are respectively equipped with detectors 171-178 of ultrasonic detectors or the like to measure the stock level of stored raw materials (a) inside actually, and these stock-level values actually measured are inputted into a controller 18 at any time. Setters 19 and 20 are respectively connected to the controller 18: the lowest limit reference value C and the highest limit reference value D of the storage amounts of stored raw materials (a) in respective mineral bunkers 121-128 are inputted and set by one setter 19, and values to make some of mineral bunkers 121-128 vacant are inputted and set from another setter 20 on the basis of the lowest limit reference value C and stock-level values actually measured together with the total stock in a raw material yard and suspension periods of raw-material processing installations and conveyance equipments for reducing the pulverization rate before a blast furnace.

6. 发明专利

JPS57200505A BLOW-DOWN OPERATION OF SHAFT FURNACE 失效
公开(公告)号：JPS57200505A
公开(公告)日：1982-12-08
申请号：JP8713381
申请日：1981-06-05
申请人： SUMITOMO METAL IND
发明人： YAMAOKA HIDEYUKI , HATANO MICHIHARU , KURITA KOUICHI , SATOU KAZUAKI , SHIMODA YOSHIO
IPC分类号： C21B5/00 , C21B7/00
摘要： 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.

7. 发明专利

JPS5699131A CONTROL METHOD OF ORE IN STORAGE 失效
公开(公告)号：JPS5699131A
公开(公告)日：1981-08-10
申请号：JP17360179
申请日：1979-12-29
申请人： SUMITOMO METAL IND
发明人： SHIMODA YOSHIO , NAKAI KAZUO
IPC分类号： B65G65/40 , B65G65/34
摘要： PURPOSE:To obtain stable operation of handling the ore stored in a chain of repositories by setting the upper and lower limit levels of storage previously for every repository and by controlling the incoming and outgoing ore on the basis of said preset limit value and the current level of storage which is actually measured. CONSTITUTION:When repositories 121-128 composing a repository group 11 have an operating condition as shown in the attached figure, the upper and lower limit values X, Y set by a setting device 19 and the levels of storage, actually measured by sensors 171-178, of the ore (a) in the respective repositories, which shall vary every moment, are put into a control device 18. This control device 18 gives command signals to discharge devices 151, 153, 156, 158 when it is given the upper limit value X by the sensors 171, 173, 176, 178 to hold the repositories concerned in discharging condition and, at the same time, gives the discharge stop command to the discharge devices 152, 154, 157. The control device 18 gives another command signal (b) to actuate a tripper 14 for charging of the ore.

8. 发明专利

JPS5597410A FURNACE COOLING METHOD AFTER BLAST FURNACE BLOWS OUT 失效
公开(公告)号：JPS5597410A
公开(公告)日：1980-07-24
申请号：JP406879
申请日：1979-01-16
申请人： SUMITOMO METAL IND
发明人： MOCHIZUKI AKIRA , SHIMODA YOSHIO
IPC分类号： C21B5/00 , C21B7/00
摘要： PURPOSE:To attain a reduction of blast furnace cooling period by a method wherein, in case of blowing out a blast furnace, steam is blown into a furnace from a tuyere or a slag hole after a temperature of coke replaced with a furnace filling material is lowered to a specific temperature and cooling is forcedly carried out while the furnace pressure is restricted within a limited. CONSTITUTION:When a blast furnace is blown out, steam 10 is blown into at pressure of 1.5-2kg/cm from a tuyere or a slag hole after a temperature of coke replaced with a furnace filling material is lowered to below 500 deg.C. In this case, steam pressure is maintained at 5-10mm H2O higher than an atomospheric pressure by utilizing a pressure equalizing chamber provided in a furnace top 3 for operating a blast furnace at high pressure, a filling apparatus (not designated in a figure) and a septum valve 6 and, while this condition is maintained, forced cooling carried out. Moreover, blowing steam 10 is advanced along an arrow direction from a furnace top 3 and exhausted from a branched pipe 8 through a dust catcher 4, a scrubber 5 and a septum valve 6.

9. 发明专利

JPH0499110A STRUCTURE OF REFRACTORY AT SHAFT PART IN BLAST FURNACE 失效
公开(公告)号：JPH0499110A
公开(公告)日：1992-03-31
申请号：JP20886190
申请日：1990-08-06
申请人： SUMITOMO METAL IND
发明人： HAMAMURA SAKAE , SHIMODA YOSHIO , HASHIMOTO YOSHITERU , ONISHI MORITAKA
IPC分类号： C21B7/06
摘要： PURPOSE:To improve durability of a shaft part in a furnace by fitting a large block, which is constituted of an SiC quality material having excellent wear resistance and spalling resistance and formed to integral structure by packing refractory in the inner part, to inner face of an iron shell through the refractory heat insulating material. CONSTITUTION:Main body block 1-1 constituting the large block is fitted to the inner face of iron shell by penetrating bolts 5 for fitting this block into bolt holes 1-3 for fitting. Successively, a cover body 1-2 is fitted by penetrating the bolts 5 for fitting into bolt holes 1-5 for fitting, and also by fastening with nuts 1-7, thus, this large block is perfectly fixed to the iron shell 1. After that, the refractory (1-8) is packed into inner part of the block from pressing-in hole 1-4 for refractory. The large blocks 1 are fitted to the iron shell from lower step in order to manufacture the furnace wall. Then, as joint in each gap between the large blocks, the fire-resisting insulating material 4 which absorbs the expansion of these blocks is packed into the gap. As the large block is made of the SiC quality material having excellent wear resistance and spalling resistance compared with the ordinary chamotte quality, or high alumina quality refractory brick, this has high durability and long service life.

10. 发明专利

JPH0499109A METHOD FOR REPAIRING SHAFT PART IN BLAST FURNACE 失效
公开(公告)号：JPH0499109A
公开(公告)日：1992-03-31
申请号：JP20886090
申请日：1990-08-06
申请人： SUMITOMO METAL IND
发明人： HAMAMURA SAKAE , SHIBATA TOSHIRO , MURAI TATSUNORI , SHIMODA YOSHIO , HASHIMOTO YOSHITERU
IPC分类号： C21B7/06 , F27D1/16
摘要： PURPOSE:To form a furnace wall having high durability and a long service life by fitting an SiC quality plate having wear resistance and spalling resistance apart from an inner face of the furnace on the inner face of damaged part and causing a high stickiness monolithic refractory to flow in the gap between said plate and the inner face in the furnace to fill the gap. CONSTITUTION:The SiC quality plate 3 is hung down with a winch 7 from an opening part 8 at upper part of the furnace and charged to the furnace and positioned to the target damaged part. Plate fitting bolt 10 is inserted from a fitting jig inserting hole 6 and by fastening the bolt 10 to an iron shell 1 at the prescribed position, the plate is fixed. The castable 4 with high stickiness is pressed and filled up into the gap between the plate 3 and the remaining brick 2 from the monolithic castable pressing in hole 5 bored in the furnace wall to perfectly fill up the gap. As the plate 3 for protecting the furnace wall, the material manufactured by the SiC quality refractory having excellent wear resistance and spalling resistance, is used.

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