子分类：
| 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 | A METHOD AND APPARATUS FOR SUPPLYING BLAST TO A BLAST FURNANCE | US14652548 | 2013-12-10 | US20150329928A1 | 2015-11-19 | Paul Mark GEACH |
| Apparatus for supplying blast to a blast furnace (1) having a plurality of hot blast stoves (4, 5, 6), each stove including a cold blast inlet, a fuel inlet, an air supply inlet, a hot blast outlet, and a waste gas outlet; a waste heat recovery unit (30) connected to a fuel supply, the stove fuel inlet and the cold blast inlet. The stove waste gas outlets are connected to the cold blast inlets, whereby stove waste gas from one stove (5) is supplied, via the waste heat recovery unit, as cold blast to another stove (4). | ||||||
| 122 | METHOD FOR PREPARING BLAST FURNACE BLOW-IN COAL | US14412914 | 2013-09-19 | US20150203930A1 | 2015-07-23 | Keiichi Nakagawa; Setsuo Omoto; Masakazu Sakaguchi; Tsutomu Hamada |
| On the basis of data obtained by means of analyzing coal, a first and second coal type satisfying conditions are selected, the ash melting point of the mixed coal resulting from mixing the first and second coal types is derived on the basis of a four-dimensional state diagram for SiO2—CaO—MgO-20% Al2O3, on the basis of the ash melting point of the mixed coal and the four-dimensional state diagram, an additive causing the ash melting point of the mixed coal to be at least 1400° C. at the lowest quantity when added to the mixed coal is selected from SiO2, MgO, and CaO, the addition quantity of the additive is derived, the first coal type and second coal type are mixed to result in the mixed coal, and the addition quantity of the additive is added to the mixed coal. | ||||||
| 123 | PREHEATING OXYGEN FOR INJECTION INTO BLAST FURNACES | US13731203 | 2012-12-31 | US20140162205A1 | 2014-06-12 | Taekyu KANG; Remi Pierre TSIAVA |
| A side stream of hot blast air is used to preheat oxygen at a heat exchanger. The resultant hot oxygen is injected into a tuyere of a blast furnace with pulverized or granular coal. The cooled side stream may be recombined with the hot blast air for injection into the tuyere, fed to the stove as part of the cold blast air, or fed to stove for combustion with blast furnace gas. | ||||||
| 124 | Method of scrapping furnace bottom section of blast furnace | US09737352 | 2000-12-15 | US20020014724A1 | 2002-02-07 | Hirotaka Kojima; Masao Fujita; Mitsuru Kiguchi; Hiroyuki Yasuhara; Yasuo Ochiai |
| A solidified residual iron within a blast furnace is suspended up by employing a shell suspending device fixed to a tuyere arranged in a lower end portion of an upper portion of a furnace body suspended by a lift jack and a solidified residual iron suspending band, thereafter is descended by employing the lift jack and is mounted on a horizontally moving table. Subsequently, the horizontally moving table mounting the solidified residual iron thereon is moved onto a furnace outer truck rail from a furnace inner truck rail so as to be taken out of the furnace by operating a center hole jack arranged near the furnace outer truck rail, whereby an operation of taking out the solidified residual iron within the blast furnace out of the furnace is economically performed for a short time. | ||||||
| 125 | Frame for a blast furnace | US09315683 | 1999-05-20 | US06287512B1 | 2001-09-11 | Franz Stamma; Martin Fobbe |
| A frame for supporting structural components of a blast furnace includes a bottom section connected to a foundation, a middle section and a top structure arranged above the furnace top, wherein the frame is manufactured as a latticework construction and/or framework construction and extends in four planes. The bottom section of the frame is provided in the four planes thereof with support members which extend toward each other and meet each other in a base point. | ||||||
| 126 | Method for manufacturing steel | US09326403 | 1999-06-04 | US06264723B1 | 2001-07-24 | Fritz-Peter Pleschiutschnigg |
| A method and a plant for manufacturing steel in an electric steel furnace wherein the electric steel furnace is charged with at most 70% scrap and with at most 60% liquid pig iron obtained in a mini-blast furnace, and optionally with additional iron carriers, and wherein the mini-blast furnace is operated for producing the pig iron with iron pellets and/or coarse or lump ore and coke as well as coal. The melting process in the electric steel furnace is operated using electrical energy and by simultaneously using oxygen and injected coal. The plant for carrying out the method is composed of a mini-blast furnace and an electric steel furnace. | ||||||
| 127 | Supporting structure for blast furnaces | US674353 | 1976-04-07 | US4003558A | 1977-01-18 | Harold B. Elsasser; James F. Gunion; Melvin L. Huerter; Andrew L. Poulos |
| A supporting structure for a blast furnace in which the mantle and stack are supported on columns spaced a substantial distance from the furnace. Trusses and girders span the spaces between columns. The girders carry a frame which surrounds the furnace above the mantle. Hangers are suspended from the frame and girders and connected to the mantle. The supporting structure has advantages that it allows more room for maintenance of the furnace, and that there is little likelihood of damage to the columns in the event of a burnout. | ||||||
| 128 | Composition suitable for use in the plugging of the tapholes of a metallurgical furnace | US471556 | 1974-05-20 | US3994738A | 1976-11-30 | Reier Visser |
| A composition suitable for use in the plugging of tapholes of a metallurgical furnace is provided, which comprises a mixture of 60-80% refractory and erosion-corrosion resistant grain material, 12-18% binder substantially on the basis of tar products, and 4-12% bonding clay. Preferably: the binder contains 65-75% of electrode pitch, 9-11% of C.sub.2 -resins and has a viscosity less than 8000 cp. at 20.degree. C; the refractory consists 20-40% of sieve fractions of approximately 3-6 mm, the balance being of finer grains; the composition also contains ground soft coal, approximately to 10%; the refractory is burned magnesite with over 80% MgO content, or a mixture of 56-100% of Al.sub.2 O.sub.3 and from 0-44% SiO.sub.2, or a mixture containing 50-100% SiO and from 0-50% SiO.sub.2 ; and the refractory material contains impurities reducing its sintering point toward or below 1300.degree. C. | ||||||
| 129 | Metallurgical shaft furnace lined by refractory elements and filler spacers | US24964772 | 1972-05-02 | US3805466A | 1974-04-23 | VAN LAAR J; VAN BASTEN BATENBURG L |
| In the formation of the lining of a metallurgical or like furnace wall construction, the wall construction lining is formed from the furnace bottom upwardly by alternating layers of refractory block elements and filler plates which are softened by heat over a temperature range of several hundred degrees centigrade. The total thickness in a vertical direction of filler plates employed in the wall lining will generally equal the total thermal expansion vertically of the refractory block elements employed in forming the furnace wall lining, this thermal expansion being from the bottom point at which a filler plate is employed to a top point or layer at which a filler plate is employed. The thermal expansion herein referred to is the expansion from the cold condition of the furnace wall lining to a temperature level of lining of the furnace wall construction of 50* to 300*C below the temperature level during normal operation.
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| 130 | Supporting apparatus for vessels | US3786606D | 1971-04-26 | US3786606A | 1974-01-22 | GREAVES M; WERNER T |
| Apparatus for supporting a vessel, such as a blast furnace having a shell, comprising a main frame that surrounds the shell and is connected to and at least partially supports the shell. The supporting apparatus for the vessel also includes diverging legs rigidly connected to the main frame; during construction the lower ends of these legs are supported off-center from the centers of the legs to enable the lower ends of the legs to deflect outwardly by amounts corresponding to the amounts that they would deflect when loaded with the vessel. The legs are thus prestressed before loading.
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| 131 | Cooled furnace and a cooling system therefor | US3750629D | 1971-10-20 | US3750629A | 1973-08-07 | CRAMER R E; VAN DER VLIET C; OUWERKERK J H W |
| A furnace over at least part of its outer surface is provided with a double wall, the space enclosed by said double wall being part of a circulation system for cooling liquid without pressure, there being a reservoir above the double wall space in which vaporized cooling liquid can be separated from the cooling mixture, which reservoir is in communication with the upper end and the lower end of the double wall space, the reservoir being in direct open communication with the upper end of the double wall space and being positioned immediately on top thereof and the double wall space being divided into two spaces by an intermediary baffle about parallel to the outer surface of the furnace, said two spaces being in open communication with each other at their upper and lower ends. The reservoir may extend from the upper end of the double wall space in upward and widening outward direction with respect to the furnace wall and may have at least one discharge duct for vapour connected thereto in the proximity of the highest and most outward area of this reservoir; may have in the proximity of the upper end of the double wall space, at the outside thereof, as part of the supply system for cooling liquid a liquid reservoir with an overflow which is connected to the space within the double wall through a narrow connecting passage; and may include other structural features.
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| 132 | Blast furnace structure | US3746327D | 1971-08-13 | US3746327A | 1973-07-17 | MATSUSHIMA M; NISHINOMIYA M |
| Refractory bricks above the cylindrical section are divided into some sections and the bricks in each section are supported by each ring girder which in turn is supported by the support disposed outside of the main body of the blast furnace.
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| 133 | Furnace apparatus | US3733065D | 1971-05-05 | US3733065A | 1973-05-15 | GREAVES M; WERNER T |
| Blast furnace apparatus having a shell that is lined with refractory material, and means for reinforcing the shell including gussets secured to the outer surface of the shell and companion gussets fixed to the inside of the shell substantially in alignment with the first mentioned gussets. The companion gussets preferably have openings through them to inhibit overstressing of the companion gussets on expansion and contraction of the shell.
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| 134 | Blast furnace taphole plugs | US3607809D | 1967-08-01 | US3607809A | 1971-09-21 | ELBY PIERRE |
| This invention relates to anhydrous plugs for stopping the tapholes of blast furnaces. This plug comprises, as a basic refractory material, a mixture consisting of low alumina pure silica and one or more refractory or gritty clays, and, as a binder, a resin or a plastic material containing a setting retarder such that the plug be heat stable at about 200* C.
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| 135 | Low temperature blast furnace and method therefor | US3427013D | 1966-09-08 | US3427013A | 1969-02-11 | CAVANAGH PATRICK EDGAR |
| 136 | Steel plant | US51061265 | 1965-11-30 | US3271020A | 1966-09-06 | WILHELM HEEMEYER |
| 137 | Polyethers from oxygen-containing organic compounds | US72484058 | 1958-03-31 | US3096296A | 1963-07-02 | GUNTHER NISCHK; HANS HOLTSCHMIDT; WILHELM BONGARD; OTTO BAYER |
| 138 | Process for melting ores, metals, glass, minerals and similar fusible materials in a furnace | US83598059 | 1959-08-25 | US3008819A | 1961-11-14 | ALOIS SCHMID; HERMANN HOFER |
| 139 | Blast furnace and heater combination | US39167453 | 1953-11-12 | US2832681A | 1958-04-29 | HEINRICH KOPPENBERG; WERNER WENZEL ALFRED WILLI |
| 140 | Blast furnaces provided with tuyeres having baffles | US37599453 | 1953-08-24 | US2749112A | 1956-06-05 | ZIPPLER FRANCIS J |
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