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1. 发明专利

JP2002138356A GRANULAR INORGANIC FIBER WOOL AND METHOD FOR PRODUCING THE SAME 失效
公开(公告)号：JP2002138356A
公开(公告)日：2002-05-14
申请号：JP2000326981
申请日：2000-10-26
申请人： KAWASAKI STEEL CO
发明人： NAGAO TOMOKAZU , TAKAGI MASATO , YAMADA MASATAKA , SATO MASAAKI , ASAO KAZUO
IPC分类号： C03B37/01 , C03C25/10 , D01F9/08 , D04H1/4209 , D06M15/53 , D04H1/42
摘要： PROBLEM TO BE SOLVED: To obtain granular inorganic fiber wool suitable as a construction/ industrial material such as a thermal insulating material, packing material or sound-absorbing material, particularly suitable for a blowing method applied to e.g. a space in a house between the ceiling and the roof, and to provide a method for producing such granular inorganic fiber wool. SOLUTION: This granular inorganic fiber wool is obtained by processing a melted inorganic material into fibers followed by collecting them into wool and then forming a granulation, wherein, during the process until cooling the inorganic fibers, a water-soluble polymer solution is made to adhere to the inorganic fibers. The granular wool thus obtained has a water-soluble polymer pickup of 1-2 mass% based on the inorganic fibers and a bulk density of preferably

2. 发明专利

JPH0948647A COMPONENT ADJUSTMENT OF SHAFT FURNACE FUSED SLUG 失效
公开(公告)号：JPH0948647A
公开(公告)日：1997-02-18
申请号：JP21400995
申请日：1995-07-31
申请人： KAWASAKI STEEL CO
发明人： SHINOHARA KOICHI , SATO MASAAKI
IPC分类号： C04B5/00 , C03B3/00 , C03B5/027 , C04B5/06
摘要： PROBLEM TO BE SOLVED: To enable the addition of an auxiliary material consisting mainly of a silicon containing material to shaft furnace fused slug in specific amounts at specific spots, and the efficient mixing of them by determining spots and amounts for charging the auxiliary material by a specific method in a process where the auxiliary material is added to the shaft furnace fused slug in an electric furnace having three electric poles and they are fused and mixed. SOLUTION: An auxiliary material (e.g. a silicon-containing material) is added to a shaft furnace fused slug in an electric furnace having three electric poles 2 and they are fused and mixed. In this process, the current density between the poles 2 is determined by calculation and spots having a large current density are made spots where the auxiliary material is charged. Further, a charging amount at each charging spot is adjusted in accordance with the density (e.g. three spots marked with circles ○ are suitable for charging the auxiliary material).

3. 发明专利

JPH06159941A CONSTRUCTION OF WATER-COOLED TYPE SLAG SPOUT OF ELECTRIC FURNACE 失效
公开(公告)号：JPH06159941A
公开(公告)日：1994-06-07
申请号：JP33672692
申请日：1992-11-24
申请人： KAWASAKI STEEL CO
发明人： SHINOHARA KOICHI , SATO MASAAKI
IPC分类号： F27B3/19
摘要： PURPOSE:To simplify the work for replacing a shedding piece by providing a water-cooled tip of double-pipe construction at the tip of a bar of a shedding machine which plugs and unplugs the shedding piece. CONSTITUTION:A cooling block 1 is arranged around a slag spout of an electric furnace to cool the slag spout with water. A water-cooled shedding piece 2 is put in an opening 3 of the cooling block 1 and plugged and unplugged by a shedding machine which is usually used in plugging and unplugging the shedding piece 2. However, a water-cooled tip 4 is attached at the tip of a shedding bar of the shedding machine and is able to move back and forth. Therefore, discharge of slag can be stopped by cooling without use of a slide gate.

4. 发明专利

JPH0687626A METHOD FOR CONTROLLING RATE OF SHOT PARTICLE IN ROCK WOOL 失效
公开(公告)号：JPH0687626A
公开(公告)日：1994-03-29
申请号：JP25740192
申请日：1992-08-31
申请人： KAWASAKI STEEL CO
发明人： SHINOHARA KOICHI , SATO MASAAKI
IPC分类号： C03B37/04 , C03B37/07
摘要： PURPOSE:To provide a method for controlling the rate of shot particles mixed in rock wool. CONSTITUTION:When inorganic short fiber such as rock wool is subjected to wool making, the quantity of sucked air of a blower 14 is adjusted by a damper 13 in a return line connecting a cyclone 10 to a cotton collecting chamber 7 to control the flow rate on the inlet side of a shot separator 9, and, the shot particles in the rock wool are collected.

5. 发明专利

JPH0616448A METHOD FOR ADJUSTING LIGHTNESS AND THE LIKE OF ROCK WOOL 失效
公开(公告)号：JPH0616448A
公开(公告)日：1994-01-25
申请号：JP19485692
申请日：1992-06-29
申请人： KAWASAKI STEEL CO
发明人： SHINOHARA KOICHI , SATO MASAAKI
IPC分类号： C03B37/04 , C03C13/06
摘要： PURPOSE:To adjust the lightness of rock wool by adjusting the incorporation amt. of waste, such as shot, which is to be incorporated into normally wadded rock wool fibers and is generated at the time of wadding with a wadding machine. CONSTITUTION:Molten blast furnace slag 1 subjected to component adjustment by adding auxiliary raw materials to the slag is successively dropped and supplied from an inclined trough 2 through a pouring trough 3 to wheels 41, 42, 43 of the wadding machine 4. The molten slag 1 is finely stretched by the centrifugal force based on rotation while the molten slag 1 passes the respective wheels. The wadded rock wool fibers 6 are splashed by air flow 47 formed by a blower 46 in a body 44 and are collected in a collecting chamber 5. The wadding machine 4 is moved by wheels 45 closer to or apart from the collecting chamber 5, by which the incorporation amt. of the waste 8 generated at the time of wadding into the collecting chamber 5 is adjusted and the lightness of the rock wool fibers 6 is adjusted. The collected rock wool fibers 6 are thereafter transported toward the ensuing treatment by a collecting conveyor 52. The waste 8 generated at the time of the wadding is discharged to the outside by a discharge conveyor 7.

6. 发明专利

JPH02115311A METHOD FOR CONTROLLING HEAT OF BLAST FURNACE 失效
公开(公告)号：JPH02115311A
公开(公告)日：1990-04-27
申请号：JP26712788
申请日：1988-10-25
申请人： KAWASAKI STEEL CO
发明人： KOKUBU HARUO , KIGUCHI MITSURU , SATO MASAAKI
IPC分类号： C21B5/00
摘要： PURPOSE:To remarkably reduce the frequency of control actions by estimating the changing tendency of the future molten iron temp. from the furnace heat index mutation quantity and load lowering velocity mutation quantity at present and controlling the furnace heat based on the estimated result. CONSTITUTION:The furnace heat index mutation quantity at present is estimated from the furnace heat index reference level corresponding to the desired molten iron temp., the load lowering velocity mutation quantity at present from the load lowering velocity reference level at the furnace temp. corresponding to the desired molten iron temp., and the molten iron temp. after a specified time from the influence time of both mutation quantities on the molten iron temp. The furnace heat is controlled based on the estimated result to reduce the variation of the molten iron temp. By this method, the molten iron temp. is stabilized, and the cooling down of the blast furnace is prevented.

7. 发明专利

JPH01319616A METHOD OF OPERATING BLAST FURNACE 失效
公开(公告)号：JPH01319616A
公开(公告)日：1989-12-25
申请号：JP14980988
申请日：1988-06-17
申请人： KAWASAKI STEEL CO
发明人： KIGUCHI MITSURU , SATO MASAAKI
IPC分类号： C21B5/00
摘要： PURPOSE:To automatically administrate furnace conditions to a stable state by selecting blast furnace operating conditions from the respective ranks of furnace heat trends determined from a change in heat balance and the temp. of a molten iron and the information in the respective histories of the already existed operating conditions, etc. CONSTITUTION:The change in the heat balance and melting temp. determined by the heat balance model estimated by the heat balance in the lower part of the furnace are respectively segmented to prescribed ranges and the ranks of the furnace heat trends are determined. The operating conditions are previously set for each of the ranks of the furnace heat trends. The above-mentioned operating conditions are selected simultaneously from the change rate in the heat balance and the temp. of the molten iron at the time of deciding the furnace heat. The operating conditions are selected from the operating conditions before and after the above-mentioned operating conditions as a standard inclusive of said standard according to the information in the histories of the molten iron temp. to the decision of the furnace heat and the information in the histories of the already executed operating conditions including coke ratios, moisture, blast temps. and blast rates. The heat control of the blast furnace is executed precisely, automatically and adequately in this way.

8. 发明专利

JPH01319611A METHOD OF PREDICTING SLIP IN BLAST FURNACE OPERATION 失效
公开(公告)号：JPH01319611A
公开(公告)日：1989-12-25
申请号：JP14980488
申请日：1988-06-17
申请人： KAWASAKI STEEL CO
发明人： KIGUCHI MITSURU , SATO MASAAKI
IPC分类号： C21B5/00
摘要： PURPOSE:To greatly improve prediction accuracy and to allow adequate action by comparing the present value and past average value of the N2 concn. of a furnace top gas, cumulatively calculating the differences thereof and predicting the generation of a slip when the calculated value exceeds a set value. CONSTITUTION:The N2 concn. is detected by continuously measuring the concn. of the furnace top gas. The present N2 concn. and the average value of the N2 concn. for the past specified period before this detection are compared and the difference ( SP) thereof is determined. The difference ( SP) is cumulatively calculated when the difference ( SP) attains the prescribed or above in a positive direction. The generation of the slip is predicted and. for example, the reduction of draft by about 10-20% is executed when the cumulatively calculated value exceeds the predetermined threshold N2 value. The sure action to the slip is thus executed.

9. 发明专利

JP2003112941A GRANULAR INORGANIC FIBER COTTON, AND PRODUCTION METHOD THEREFOR 审中-公开
公开(公告)号：JP2003112941A
公开(公告)日：2003-04-18
申请号：JP2001304491
申请日：2001-09-28
申请人： KAWASAKI STEEL CO , KAWATETSU ROCK FIBER KK
发明人： NAGAO TOMOKAZU , TAKANO SHIGERU , YAMADA MASATAKA , SATO MASAAKI
IPC分类号： C03B37/10 , C04B35/653 , D04H1/587 , D06M15/263
摘要： PROBLEM TO BE SOLVED: To provide granular inorganic fiber cotton which has a bulk density suitable for a blowing method requiring lightening, and is carriable under compressive packaging, and whose bulk density can be restored to the lightweight one for use, and to provide a method for producing granular inorganic fiber cotton. SOLUTION: A melted inorganic matter is made into fiber, and the fiber is collected in a cotton state and granulated. In this case, while the remaining heat of the inorganic fiber drops to an ordinary temperature, a resin emulsion forming a resin film having the lowest film production temperature of =10 deg.C is stuck in an amount of >1 mass% expressed in terms of an emulsion solid content to the inorganic resin to produce the granular inorganic fiber cotton. The granular inorganic fiber cotton has a bulk density of , and the bulk density is restored to the original one when the cotton is released from a temporarily compressed state.

10. 发明专利

JPH0725634A CONTROLLING METHOD OF OILING FOR FIBER ACCUMULATION IN ROCKWOOL PRODUCTION 失效
公开(公告)号：JPH0725634A
公开(公告)日：1995-01-27
申请号：JP19198593
申请日：1993-07-06
申请人： KAWASAKI STEEL CO
发明人： SHINOHARA KOICHI , SATO MASAAKI
IPC分类号： C03B37/00 , C03B37/04 , C03B37/07 , C03C25/10 , D01F9/08
摘要： PURPOSE:To enhance the quality and yield rate of a produced rock wool by controlling oiling amount based on the measured values of the repelling force or the cut length of the said rock wool in the packaging machine of the said rock wool. CONSTITUTION:The blast furnace slag provided by a primary electric furnace 11 is kept at a constant temperature in a secondary electric furnace 12 and extruded to be fed to a wheel 5 of a draft making machine 16 and accumulated as a fibrous material. In this instance, a drafting oil is sprayed from nozzles around the wheel 5, and the fibrous material is collected in an accumulating vessel 7, and the dumpling like mass of fiber is cut by a picker cutting machine 18 and granulated by a trommel 19 to give a granular product which is compressed and packaged by a packaging machine. The quality (fiber opening property) of the packaged rock wool is derived from the relationship of the wet bulk value and the repelling force which is measured by detecting the counter force of compression of the granular product to a specified thickness. Otherwise, the relationship between repelling force and the cut length of the rockwool product is determined in advance, and the quality of the rockwool can be estimated based on the above relationship.

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