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1. 发明专利

JP2002136998A METHOD FOR DEHYDRATING SLURRY 审中-公开
公开(公告)号：JP2002136998A
公开(公告)日：2002-05-14
申请号：JP2001251310
申请日：2001-08-22
申请人： NIPPON STEEL CORP , TOHO DEV ENG
发明人： IBARAKI TETSUJI , IMURA SHOJI , KONDO SATOSHI , ABE YOICHI , TAKAHASHI SHIGEKI , AIZAKI TAKERU , CHIBA HIROHIKO
IPC分类号： B01D33/04 , B01D24/46 , B01D33/44 , B01D33/58 , B30B9/20 , B30B9/24 , C02F11/12
摘要： PROBLEM TO BE SOLVED: To provide a method and apparatus for efficiently dehydrating a slurry constituted of a powder containing iron oxide or an iron compound generated in the iron industry. SOLUTION: In the method for dehydrating the slurry of the powder containing an iron compound powder with an average particle size of 1.5-40 μm by compressing the same by a dehydrator constituted of circulating and moving endless loop-shaped filter cloth and a pair of compression rolls arranged above and under the filter cloth, the number of rotations of the compression roll on the surface side carrying the slurry of the filter cloth is set to a range of

2. 发明专利

JP2005023309A Soil-repairing agent and method for producing the same 有权
标题翻译：土壤修复剂及其生产方法
公开(公告)号：JP2005023309A
公开(公告)日：2005-01-27
申请号：JP2004173631
申请日：2004-06-11
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： IBARAKI TETSUJI , IMURA SHOJI , YAMAMOTO MITSURU , NAGAYA KOJI , IGAWA JUNJI
IPC分类号： A62D3/37 , A62D101/22 , A62D101/43 , B09C1/02 , B09C1/08 , C09K17/02 , C09K101/00 , A62D3/00
摘要： PROBLEM TO BE SOLVED: To provide a good quality soil-repairing agent consisting of iron powder and a method for producing the same.
SOLUTION: This soil-repairing agent is iron particles produced by maintaining very fine powder consisting mainly of metallic iron, obtained by various methods in alkaline water of pH≥7 and forming at least one of ferrous hydroxide or ferrous oxide on the surface of the iron particles. By mixing the soil-repairing agent in the soil, hexavalent chromium and an organic halogen compound can be made as harmless.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供由铁粉组成的优质土壤修复剂及其制造方法。解决方案：该土壤修复剂是通过在pH≥7的碱性水中保持主要由金属铁组成的非常细小的粉末制成的铁颗粒，并且在表面上形成至少一种氢氧化亚铁或氧化亚铁的铁颗粒。通过在土壤中混合土壤修复剂，可以使六价铬和有机卤素化合物无害化。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2001303115A METHOD FOR OPERATING ROTARY HEARTH TYPE REDUCTION FURNACE AND REDUCING FACILITY OF METALLIC OXIDE 失效
公开(公告)号：JP2001303115A
公开(公告)日：2001-10-31
申请号：JP2000124449
申请日：2000-04-25
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUJI , HIROMATSU TAKASHI , KONDO SATOSHI , IMURA SHOJI , ABE YOICHI , TAKAHASHI SHIGEKI
IPC分类号： B01D33/04 , C21B11/08 , C21B13/10 , C22B1/00 , C22B1/16 , C22B1/212 , C22B1/248 , C22B7/00 , C22B7/02
摘要： PROBLEM TO BE SOLVED: To provide a method and a facility wherein, in the case of reducing powdery raw material containing much moisture and having

4. 发明专利

JP2005036263A Material of civil work using waste lime, and method for recycling waste lime 有权
标题翻译：使用废物的公民工作材料和回收废物的方法
公开(公告)号：JP2005036263A
公开(公告)日：2005-02-10
申请号：JP2003198821
申请日：2003-07-18
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： IBARAKI TETSUJI , IMURA SHOJI , TAKAHASHI KIYOSHI
IPC分类号： B09B3/00 , C04B5/06 , C04B18/14 , C21B3/06
CPC分类号： Y02P10/242 , Y02W30/543 , Y02W30/94
摘要： PROBLEM TO BE SOLVED: To provide a material of civil work manufactured by inexpensively treating a waste lime produced in a furnace such as a refuse incinerator or an industrial furnace, and to provide a method for recycling the waste lime. SOLUTION: The material of civil work using waste lime is produced by supplying the particles of a calcium compound, which have adsorbed chlorine or sulfur oxides existing in a waste gas produced in the furnace, into molten iron or molten slag; mixing them with other oxides to synthesize a composite slag consisting of calcium oxide, silicon oxide and other oxides; and cooling the composite slag. The method for recycling waste lime uses the above process. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供通过廉价处理在诸如垃圾焚烧炉或工业炉的炉中产生的废石制造的民用工作材料，并提供废石灰回收的方法。解决方案：使用废石灰的民用工程材料是通过将存在于炉中产生的废气中的氯或硫氧化物吸附在铁水或熔渣中的钙化合物颗粒，将其与其他氧化物混合，合成由氧化钙，氧化硅等氧化物组成的复合渣; 并冷却复合渣。回收废石灰的方法采用上述方法。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004292806A Soil renewing agent and method for renewal of soil 审中-公开
公开(公告)号：JP2004292806A
公开(公告)日：2004-10-21
申请号：JP2004060262
申请日：2004-03-04
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： YAMAMOTO MITSURU , IBARAKI TETSUJI , IMURA SHOJI , KANEMORI NOBUYUKI , NAGAYA KOJI , IGAWA JUNJI
IPC分类号： A62D3/34 , A62D3/37 , A62D101/22 , A62D101/28 , A62D101/43 , B09B1/00 , B09B3/00 , B09C1/02 , B09C1/08 , C02F1/70 , C09K17/02 , C09K101/00 , A62D3/00
CPC分类号： Y02W30/35
摘要： PROBLEM TO BE SOLVED: To reduce a construction cost by decreasing the usage of a soil renewing agent by means of maintaining highly the reactivity of the soil renewing agent using iron as a reactive substance over a long period.
SOLUTION: The soil renewing agent is manufactured by mixing the iron-containing particles, in which the iron as a reactant makes harmless a pollutant such as trichloroethylene in the soil, with the sulfide-containing glass particles, in which the sulfide inhibits the oxidation of the iron-containing particles. The method for renewing a soil comprises making a pollutant harmless by mixing this soil renewing agent with a polluted soil.
COPYRIGHT: (C)2005,JPO&NCIPI

6. 发明专利

JP2001234220A REDUCTION EQUIPMENT FOR METAL OXIDE 失效
公开(公告)号：JP2001234220A
公开(公告)日：2001-08-28
申请号：JP2000372016
申请日：2000-12-06
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUJI , HIROMATSU TAKASHI , KONDO SATOSHI , IMURA SHOJI , ABE YOICHI
IPC分类号： B09B3/00 , C21B13/10 , C22B1/16 , C22B5/10
摘要： PROBLEM TO BE SOLVED: To provide reduction equipment for metal oxide of a rotary furnace hearth type reduction furnace which is capable of reducing the inexpensive metal oxide by simplifying stages from dehydrating to molding in reducing power raw materials containing much moisture and to cost effectively recycle the dust and sludge generated in a stage of refining or working the metal. SOLUTION: The reduction equipment consists of pretreatment equipment of the power raw material composed of a device for mixing the powder containing the metal oxide in a state of containing >=100% moisture of the total of the powder mass and the powder mainly composed of carbon, a slurry transporting device, a slurry dehydrating device and a compression type molding device for manufacturing moldings and the rotary furnace hearth type reduction furnace as main equipment.

7. 发明专利

JP2004255375A SOIL RESTORATION METHOD AND SOIL RESTORATION AGENT 审中-公开
公开(公告)号：JP2004255375A
公开(公告)日：2004-09-16
申请号：JP2004026159
申请日：2004-02-03
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUJI , NAGAYA KOJI , YAMAMOTO MITSURU , IMURA SHOJI , IGAWA JUNJI , HAYASHI TAKANORI , KONDO SATOSHI
IPC分类号： A62D3/37 , A62D101/22 , A62D101/28 , A62D101/43 , B09C1/02 , B09C1/08 , C07B35/06 , C07C21/10 , C07D319/24 , A62D3/00
摘要： PROBLEM TO BE SOLVED: To provide a soil restoration method and to obtain a soil restoration agent for efficiently restoring soil contaminated with organic halogen compounds and hexavalent chromium by using iron particles. SOLUTION: Particles which are coated with ferrous oxide or ferrous hydroxide, contain iron in a large amount and have each a large specific surface area are mixed with water, thus iron powder is shielded from air and the resultant mixture is put in a container and is transported to a working site. On the working site, the mixture is mixed with earth and sand containing the contaminant, and thereby the soil contaminant is rendered harmless. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2004255373A METHOD FOR MANUFACTURING IRON POWDER FOR SOIL RESTORING AGENT 审中-公开
公开(公告)号：JP2004255373A
公开(公告)日：2004-09-16
申请号：JP2004020825
申请日：2004-01-29
申请人： NIPPON STEEL CORP
发明人： IBARAKI TETSUJI , NAGAYA KOJI , IGAWA JUNJI , IMURA SHOJI , HAYASHI TAKANORI
IPC分类号： B09B3/00 , B09C1/02 , B09C1/08 , C09K17/02 , C09K103/00
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a soil restoring agent of good quality from converter dust. SOLUTION: Iron-containing powder is separated from a converter gas by using a wet type dust collector 3 and precipitated/extracted in a settling tank 6 to obtain concentrated slurry. The concentrated slurry is transferred to a concentrated slurry tank 10 so that the powder concentration of the concentrated slurry is controlled to a suitable level for manufacturing the final product. The concentrated slurry having the powder concentration controlled in the tank 10 is recovered through a concentrated slurry recovering pipeline 13. The concentration of the oxygen dissolved in the slurry water to be used at least in the tank 10 and in its succeeding process is made to be ≤4 mg/liter. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2001011519A PLUGGING TOOL FOR HOLDING SLAG 失效
公开(公告)号：JP2001011519A
公开(公告)日：2001-01-16
申请号：JP18920699
申请日：1999-07-02
申请人： FUJIKO KK , NIPPON STEEL CORP
发明人： IMURA SHOJI , OZAKI KENICHI
IPC分类号： C21C5/28
摘要： PROBLEM TO BE SOLVED: To facilitate the producing treatment of converter slag and to improve the quality of the converter slag product by mainly using a mixture of a castable refractory and metallic powder or metallic grain not affecting the producing treatment of the converter slag, and adjusting the whole bulk sp. gr. to a specific range in a plugging tool. SOLUTION: A head part 11 of the plugging tool 10 for holding the slag is the one, in which the mixture 14 consisting essentially of the castable refractory and a converter dust base having no affection on the producing treatment of the converter slag is fitted in a reverse conical shape so as to surround a core material 13. Further, a foot part 12 is fixed with a mixture 16 so as to surround a core material 15. The mixture 16 has the constitution same as the mixture 14. Sizes of the parts 13-16 in the plugging tool 10 for holding the slag are decided so that the whole bulk sp. gr. becomes 2.5-5. When this tool is used, the sp. gr. is adjusted so that the head part 11 floats up between a slag layer and molten steel, and the foot part 12 is positioned in the molten steel in the state of hanging down to the lower part of the head part 11, and finally, the head part 11 is fitted to a steel tapping hole from the inside to stably execute the plugging of the steel tapping hole.

10. 发明专利

JP2009189927A Insolubilizing agent of fluorine in steelmaking slag and insolubilizing method thereof 有权
标题翻译：氟化铁在不锈钢中的脱硫剂及其不溶化方法
公开(公告)号：JP2009189927A
公开(公告)日：2009-08-27
申请号：JP2008031885
申请日：2008-02-13
申请人： Kurita Water Ind Ltd , Nippon Steel Corp , 新日本製鐵株式会社 , 栗田工業株式会社
发明人： IBARAKI TETSUJI , IMURA SHOJI , TODA YUJI , MAZAWA MASATO , FUJIYOSHI NAOAKI , MATSUMOTO KATSUMI
IPC分类号： B09B3/00 , C04B5/00 , C21C1/02 , C21C5/28 , C21C7/00 , F27D15/00
摘要： PROBLEM TO BE SOLVED: To provide a technique capable of effectively suppressing the elution of fluorine from steelmaking slag with a small consumption of chemicals.
SOLUTION: The insolubilizing agent of fluorine in steelmaking slag is prepared by dissolving at least one of solid-state alkali (earth) metal phosphate selected from di-alkali metal hydrogen phosphate, tri-alkali metal phosphate and alkali earth metal phosphate into an acidic solution. The insolubilizing method of fluorine in steelmaking slag includes a process of adding the insolubilizing agent of fluorine prepared by dissolving the solid-state alkali (earth) metal phosphates into the acidic solution to the steelmaking slag. The solid-state alkali (earth) metal phosphate is dissolved into water only by such an degree as not to exceed several percents, therefore, is not suitable as the insolubilizing agent of fluorine, but is dissolved into an acidic solution to make the formation of a more concentrated solution possible, can effectively exhibit a fluorine-fixing effect to reduce the amount to be added.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够有效地抑制来自炼钢渣的氟的洗脱，同时消耗少量化学物质的技术。解决方案：炼钢炉渣中氟的不溶化剂是通过将选自二碱金属磷酸氢盐，三碱金属磷酸盐和碱土金属磷酸盐的固态碱金属（土）金属磷酸盐中的至少一种溶解于酸性溶液。炼钢渣中氟的不溶化方法包括将固态碱金属（土）金属磷酸盐溶解在酸性溶液中而制备的氟不溶化剂加入到炼钢渣中的方法。固体碱金属（土）金属磷酸盐溶解在水中的程度不超过几个百分点，因此不适合作为氟的不溶解剂，而是溶解在酸性溶液中形成更浓缩的溶液可以有效地发挥氟固定效果以减少添加量。版权所有（C）2009，JPO＆INPIT

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