| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | METHOD FOR REDUCING SLAG | US14446283 | 2014-07-29 | US20140331820A1 | 2014-11-13 | Joon-Seong Ki; Dong-Kyung Shin; Byung-Don You; Seong-Woong Joo; Seong-Hun Hong; Jin-Ill Hwang |
| Disclosed herein is a method of reducing slag, including the steps of: examining the components of slag to be reduced, and setting a target composition ratio after reduction; determining the mixing ratio and input amount of a complex reducing agent of a plurality of reducing agents in accordance with the set target composition ratio to determine the complex reducing agent; and supplying the complex reducing agent into molten slag to reduce the slag. The method is advantageous in that the reduction efficiency of slag can be maximized, various kinds of reducing agents can be efficiently used, and the recovery amount of valuable metals can be increased, thus reducing cost. | ||||||
| 122 | GRANULATION OF MOLTEN MATERIAL | US13001263 | 2009-06-29 | US20110180945A1 | 2011-07-28 | Dongsheng XIE; Bernard Washington; Steven Sanetsis |
| A granulator comprising a rotary atomiser for receiving molten material and projecting droplets of the molten material there from; and an impact surface disposed within the trajectory of the droplets and upon which the droplets impact, the impact surface being at a distance from the rotary atomiser and at an angle such that (i) all or substantially all of the droplets impact the impact surface, and (ii) a substantial portion of the droplets are not fully solidified prior to contact with the impact surface. | ||||||
| 123 | ROTARY ATOMISER FOR ATOMISING MOLTEN MATERIAL | US13001293 | 2009-06-29 | US20110163173A1 | 2011-07-07 | Dongsheng Xie; Bernard Washington; Steven Sanetsis |
| A rotary atomiser for receiving molten material and projecting droplets of the molten material there from; the rotary atomiser having a rotating well for receiving molten material. The well comprising a base and a peripheral wall extending from a peripheral rim around the base, the top of the peripheral wall having an inner top edge and a lip region extending away from the inner top edge at an angle of 0-60 degrees below the horizontal. Preferably the upper region of the peripheral side wall extending to the inner top edge is substantially vertical. | ||||||
| 124 | CERAMIC MICROSPHERES FOR CEMENTING APPLICATIONS | US12971371 | 2010-12-17 | US20110132610A1 | 2011-06-09 | George Quercia; Yibran Perera; Aiskely Blanco; Fedymar Pereira |
| A method and apparatus for manufacturing ceramic microspheres from industrial slag. The microspheres have a particle size of about 38 microns to about 150 microns. The microspheres are used to create a cement slurry having a density of at least about 11 lbs/g. The resultant cement slurry may then be used to treat subterranean wells. | ||||||
| 125 | Ceramic microspheres for cementing applications | US12327831 | 2008-12-04 | US07884055B2 | 2011-02-08 | George Quercia; Yibran Perera; Aiskely Blanco; Fedymar Pereira |
| A method and apparatus for manufacturing ceramic microspheres from industrial slag. The microspheres have a particle size of about 38 microns to about 150 microns. The microspheres are used to create a cement slurry having a density of at least about 11 lbs/g. The resultant cement slurry may then be used to treat subterranean wells. | ||||||
| 126 | METHOD FOR TREATING SLAG FLOWING FROM A METALLURGICAL VESSEL AND A DEVICE FOR CARRYING OUT SAID METHOD | US12667339 | 2008-07-03 | US20100206132A1 | 2010-08-19 | Edgar Schumacher; Renata Franzky; Sagadat Schumacher; Viktor Nikolaevich Chloponin; Alexander Kasymovich Farmanov; Anatolij Sergeevich Kostin; Anatolij Konstantinowitch Belitchenko; Andrey Vasilevitsch Judin; Aleksander Nikolaevich Savjuk; Nikolay Alexandrovitch Bogdanov; Ewald Antonovich Schumacher |
| The invention relates to steel production in the steel and iron industry. The inventive method consists in dividing a solid slag stream which flows from a metallurgical vessel and falls down, into individual streams along the solid stream, in forcedly cooling the thus obtained individual streams, in dividing the individual streams into parts (pieces) by cutting across the movement thereof, in forcedly cooling said parts and transferring to a belt conveyor, on which said separate parts/pieces are forcedly cooled and transported away from the vessel. A shaped (with containers) conveyor belt, on which the slag pieces are crushed by means of a cylindrical roll, is used for additional crushing. The inventive device for carrying out the totality of the above-listed operations, comprises at least three throat grates which are horizontally positioned in an assembled body and one of which is provided with a drive for carrying out reciprocating motion. The device also comprises a drive for displacing to/from the vessel. In the position closest to the vessel, the device is fed with air and water from a stationary plant for forcedly cooling the individual slam streams and the parts (pieces) of slam. The throat grate displacing drives and a conveyor belt drive are mounted on the device assembled body, and the roll and a drive for rotating it, when the shaped belt is used, are fastened thereto. The ribs of the throat grate are made from tensioned steel ropes. | ||||||
| 127 | CERAMIC MICROSPHERES FOR CEMENTING APPLICATIONS | US12327831 | 2008-12-04 | US20100144562A1 | 2010-06-10 | George Quercia; Yibran Perera; Aiskely Blanco; Fedymar Pereira |
| A method and apparatus for manufacturing ceramic microspheres from industrial slag. The microspheres have a particle size of about 38 microns to about 150 microns. The microspheres are used to create a cement slurry having a density of at least about 11 lbs/g. The resultant cement slurry may then be used to treat subterranean wells. | ||||||
| 128 | Anti-bonding agents and methods for blast furnace slag or its grading adjusted slag | US10235518 | 2002-09-04 | US20030110896A1 | 2003-06-19 | Hiroyuki Mitsufuji; Chiaki Yoshizawa; Takashi Wada; Atsushi Yamaguchi; Tomoo Takahashi; Mitsuo Kinoshita; Tatsushi Sugiyama |
| An anti-bonding agent for blast furnace slag or its grading adjusted slag includes one or more polymers having a main constituent unit shown by 1 by a greater molar percentage than any other constituent unit where M is hydrogen atom, alkali metal such as sodium, alkali earth metal, ammonium or organic amine. Such an agent is used in an amount of 0.002-0.3 weight parts for 100 weight parts of such blast furnace slag or its grading adjusted slag, and may be applied as an aqueous solution with concentration of 1.5-10 weight %. | ||||||
| 129 | Process for casting and forming slag products | US09353034 | 1999-07-13 | US06311522B1 | 2001-11-06 | Richard Berry; Brian Reeves |
| The present invention relates to a process and apparatus to cast and form slag directly from the molten state into crystalline or amorphous products suitable for use as decorative and structural building and construction materials. Molten slag and additives are refined at high temperature in a treatment furnace for a period of hours. The eventual entrapped gas content is controlled using a variety of methods, such as vacuum pressures and bottom stirring with inert gas. The molten slag is cast directly into moulds, and these moulds form the slag into any shape desired. The formed products are immediately introduced into a heat treatment furnace at temperatures at or above the glass transition temperature (GTT) for the case of crystalline products, or just below the GTT for amorphous products. The product is thermally cycled over a period of hours to relieve thermal stresses during cooling to ambient temperatures. If desired, the product can be coated using enamel or glaze and cured in another furnace, or metal plated. | ||||||
| 130 | Cement with air-cooled slag and silica fume | US840098 | 1997-04-11 | US5735947A | 1998-04-07 | Donald Stephen Hopkins; David Bridson Oates |
| A cement mix based on an inorganic hydraulic cement, for example, Portland Cement, an air-cooled blast furnace slag and silica fume produces concretes having strength characteristics superior to those achieved by the cement alone; furthermore this cement mix is superior to a corresponding mix based on the inorganic hydraulic cement, and the air-cooled slag without the silica fume, and to a corresponding mix based on the cement and silica fume without the slag; additionally a cost saving in the expensive Portland Cement is achieved by use of the air-cooled slag which is a waste material and cheaper than granulated or pelletized slag. | ||||||
| 131 | Apparatus for producing spheroidal inorganic particulate material | US754733 | 1991-09-04 | US5253991A | 1993-10-19 | Norio Yokota; Takahiko Yoshimura; Shusuke Harada; Masatoshi Onodera; Akihiko Miyauchi |
| The present invention is directed to a spheroidal particulate inorganic material of an inorganic particulate material such as spheroidal cement or slag whose respective particles are of a substantially spheroidal shape and have smooth surfaces having improved flowability and filling properties. The spheroidal particulate material is produced by subjecting the respective particles of the particulate inorganic material to a high temperature flame treatment and rapid cooling in air, or by dispersing fine particles of the inorganic material and an organic or inorganic binder in a non-aqueous solvent to form a slurry and granulating the slurry. Compositions containing the spheroidal particulate inorganic material are used in civil engineering works and construction. To improve energetic efficiency in the production of the spheroidal particulate inorganic material, particularly spheroidal cement or slag, an apparatus is used which is a retention furnace for retaining a molten liquid inorganic material, a nozzle assembly communicated to the retention furnace and capable of scattering therethrough the molten liquid inorganic material, a jet gas for entraining the molten inorganic material introduced in the nozzle assembly and scattering the molten inorganic material to cool it, and gas spray means for spraying the jet gas. | ||||||
| 132 | Blue colored artificial stone stocks and method of manufacturing the same | US335186 | 1981-12-28 | US4381348A | 1983-04-26 | Toshio Kamatani; Hirohisa Ishiguro; Kensei Itakura; Kazuo Yamagishi |
| A low cost beautiful blue colored artificial stone stock is obtained by using a high carbon or low carbon slag formed at the time of preparing ferrochromium, as it is or after incorporated with an expensive addition. The stone stock has a composition of 40-70% by weight of SiO.sub.2, 0.1-5% by weight of a low grade chromium oxide and the balance of CaO, MgO and Al.sub.2 O.sub.3. | ||||||
| 133 | Apparatus for manufacturing vitreous slag | US229715 | 1981-01-29 | US4330264A | 1982-05-18 | Jirou Konishi; Yasuto Takasaki; Kenji Ohkoshi; Akichika Ozeki; Shuji Kajikawa; Haruo Itoh |
| An apparatus for manufacturing a vitreous slag, which comprises: a pair of cooling drums, the peripheral surfaces of said pair of cooling drums being in contact with each other, and said pair of cooling drums rotating in directions opposite to each other at the same peripheral speed; a pair of weirs provided at the upper halves of the both ends of said pair of cooling drums so as to be in contact with said both ends of said pair of cooling drums, a slag sump being formed by means of said pair of weirs and the bodies of said pair of cooling drums, and molten slag being poured into said slag sump; a cooling medium for cooling said pair of cooling drums, said cooling medium comprising a high boiling point heat medium having a boiling point under 1 atmospheric pressure of at least 200.degree. C., said high boiling point heat medium being fed into each of said pair of cooling drums, exchanging heat with said molten slag in said slag sump, deposited onto the peripheral surfaces of said pair of cooling drums, and being discharged from each of said pair of cooling drums under a pressure of up to 5 kg/cm.sup.2 for heat recovery, whereby said molten slag is substantially completely converted into a vitreous slag through heat exchange with said high boiling point heat medium, and is peeled off from the peripheral surfaces of said pair of cooling drums by a scraper. | ||||||
| 134 | Technique for transforming soda matte slag sulfides into silicates | US92295 | 1979-11-08 | US4263042A | 1981-04-21 | Roger L. Altman; M. Vikram Rao |
| Soda matte slags are rendered resistant to spontaneous combustion through the addition of silica-bearing fluxes which convert sulfides to silicates. | ||||||
| 135 | Process for treating basic converter slag | US787429 | 1977-04-14 | US4185997A | 1980-01-29 | Katsuhiko Inoue; Tsutomu Ikeda |
| Treated basic converter slag and a process for treating basic converter slag are disclosed, in which untreated slag in a molten state is subjected to an oxidation treatment and basicity adjustment treatment by the addition of a material containing SiO.sub.2, so that iron or manganese components may be converted into forms which allow easy recovery thereof, and detrimental phosphorous components are retained in other phases. As a result, iron or manganese components may be effectively recovered, without inclusion of phosphorous components. | ||||||
| 136 | Method for obtaining aluminum oxide | US880004 | 1978-02-21 | US4149898A | 1979-04-17 | Jerzy Grzymek; Anna Derdacka; Zofia Konik; Bronislaw Werynski |
| A method for obtaining aluminum oxide where the smelted metallurgical slag is subjected to a slow cooling and then self-decomposition by simultaneous action of ultrasound or vibration of high frequency, carried out, which accelerates the formation, in a glassy (vitrous) phase, of a polymorphous, crystalline, high-temperature modification of calcium aluminate, 12 CaO.multidot.7Al.sub.2 O.sub.3, which can be easily lixiviated with aqueous solutions of soda. From lye liquors after extraction, the aluminum oxide is then recovered and the residue, after lixiviation, is burnt to standard portland clinker keeping possibly the lowest proportion of the quantity of clinker produced in relation to the quantity of obtained aluminum oxide. | ||||||
| 137 | Device and method for suppressing active slag | US764916 | 1977-02-02 | US4102680A | 1978-07-25 | William J. Collins |
| The subject invention involves providing a device which is utilized to quell, dampen, arrest, deactivate, or minimize an active layer of extremely hot slag on a body of molten metal in a receptacle in a manner whereby the metal can be expeditiously removed from the receptacle. | ||||||
| 138 | Arrangement for processing slag | US3765860D | 1971-12-06 | US3765860A | 1973-10-16 | FORSCHEPIEPE F |
| Iron-containing slag in flowable state is poured into a casting bed to form a layer. Upright tubular conduits are embedded in the layer during pouring, each having an upper section and a lower section telescoped from below over the bottom portion of the upper section. The upper sections have upper open ends outside the layer and explosive capsules are inserted through these into the lower sections and detonated. This ruptures the lower sections and forms in the slag layer cavities surrounding the lower sections. Cooling water is then introduced into the upper sections to flow into the layer via the lower sections and the cavities.
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| 139 | Method of treating slag | US3717490D | 1971-02-01 | US3717490A | 1973-02-20 | HAUSER K |
| A METHOD OF TREATING STEEL FURNACE SLAG IN ORDER TO CONVERT UNRECTED CALCIUM OXIDE AND CALCIUM HYDROXIDE INTO A FORM WHICH WILL NOT CAUSE EITHER VOLUMETRIC EX- PANSION OR LEACHING. WET CRUSHED SLAG IS BROUGH INTO CONTACT WITH CARBONATE IONS. THE WATER HYDRATES THE CALCIUM OXIDE TO FORM CALCIUM HYDROXIDE, AND THE CALCIUM AND CARBONATE IONS COMBINE TO FORM CALCIUM CARBONATE.
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| 140 | Method for processing slag | US3709671D | 1970-06-10 | US3709671A | 1973-01-09 | FORSCHEPIEPE F |
| Iron-containing slag in flowable state is poured into a casting bed to form a layer. Upright tubular conduits are embedded in the layer during pouring, each having an upper section and a lower section telescoped from below over the bottom portion of the upper section. The upper sections have upper open ends outside the layer and explosive capsules are inserted through these into the lower sections and detonated. This ruptures the lower sections and forms in the slag layer cavities surrounding the lower sections. Cooling water is then introduced into the upper sections to flow into the layer via the lower sections and the cavities.
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