WO2012087091A1 - Proceso para producir una fibra aislante, térmica y orgánica y producto resultante - Google Patents
Proceso para producir una fibra aislante, térmica y orgánica y producto resultante Download PDFInfo
- Publication number
- WO2012087091A1 WO2012087091A1 PCT/MX2010/000160 MX2010000160W WO2012087091A1 WO 2012087091 A1 WO2012087091 A1 WO 2012087091A1 MX 2010000160 W MX2010000160 W MX 2010000160W WO 2012087091 A1 WO2012087091 A1 WO 2012087091A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thermal
- fluorite
- insulating
- mixture
- fiber
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/111—Treating the molten metal by using protecting powders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0006—Linings or walls formed from bricks or layers with a particular composition or specific characteristics
- F27D1/0009—Comprising ceramic fibre elements
Definitions
- the present invention refers to a production process and the product consisting of an insulating, thermal, organic fiber, in the form of granulated powder, made with renewable and self-sustaining products, among them, natural fibers of vegetable origin and minerals.
- a process was designed for the elaboration of an organic composition based on renewable, self-sustainable and biodegradable products that allows to keep the liquid slag during the metal smelting process. It is a process by which a composition is generated in the form of granulated powder, made of natural and mineral fibers, whose main characteristic is that when contact with high temperatures (approximately 1680 degrees Celsius), is constituted in a insulation fiber spreading as a network in the form of a protective layer that seals any container or pot, preventing the loss of temperature; Once this process begins, the mixture converted into insulating fiber, is gradually transformed into ashes.
- a granulated powder with the following characteristics is produced: a) It is a composition that keeps the liquid slag or the material that covers, at the temperature that is; b) Reduce agents and polluting emissions during the smelting processes as it is a less porous material than the synthetic cover or gray matter, so that the amount of gases that escape during the smelting process is considerably less; c) Once the mixture in the form of granulated powder is transformed into an insulating fiber, by the production of small explosions, it forms a network-like layer that covers the entire surface of the molten steel and covers the radiant mirror; d) The time that the fiber remains in the form of a layer that seals the pot, allows to keep the slag liquid at the desired temperature and therefore, that most of the liquid metal is poured, without losing heat and avoiding problems of hardening of the liquid.
- the granulated powder is exposed to heat and is constituted as a protective thermal layer, it begins to be gradually transformed into ash (from 20 to 50 percent, depending on the time in which the fiber is exposed to the hot); the remnant is inert to man and the environment and easy to recover.
- the insulating fiber apart from helping to maintain the temperature, leaves a protective layer during the emptying of the steel, prolonging the useful life of the the pots and tanks. j) It considerably reduces the sedimentation of metals inside the pot during the casting process. k) It has an easy handling in its application, control and final disposal.
- the process of producing the granulated powder involves: a) The use as components of the mixture: pure silica of vegetable origin without starches or proteins, calcium oxide and metallurgical grade fluorite (minimum 92% pure); b) Mixing the above components dry, for a period of five to seven minutes; c) The addition of metallurgical grade fluorite (minimum 92% pure) to the mixture at a maximum speed of 1 kilogram per minute, provided that the mixture does not exceed 3 tons in its total weight; otherwise, the speed must increase proportionally to the increase in the weight of the mixture.
- the thermal insulation fiber is composed of: a) calcium oxide; b) 100% pure vegetable silica, without starches or proteins, as some impurities of other minerals in very low concentration such as iron, lead, zinc in less than 0.001%; c) Metallurgical grade fluorite (minimum 92% pure), with some impurities preferably of silver oxide, metal oxides, magnesium oxides and free clays of kaolin; The final result is an emulsified and standardized dry product, in the form of granulated powder, with humidity no greater than five percent, with the characteristics described above.
- the most efficient way to carry out the process described in the claims is through the use of a mixer, in which the fiber is first emptied (pure silica of vegetable origin); subsequently and then the calcium oxide in its proportional part; 3 minutes after the mixing was started, the fluorite is added at a rate preferably of 1 kilogram per minute, provided that the mixture does not exceed 3 tons of total weight; otherwise, the speed at which the fluorite is added should increase proportionally.
- the process described above should have a duration of 5 to 7 minutes, based on the percentage of fiber contained in the formula. That is to say, the higher the percentage of fiber, the time it takes for the mixture to prepare will increase, being able to reach up to 7 minutes.
- the cooling process can consist, either in the spread of the fiber over a wide surface, at room temperature, for a period of approximately 30 minutes, or in the use of mechanical means, such as fans or cold rooms, in which case, the cooling time will be less.
- the ideal percentages regarding the total weight of the mixture are the following: a) pure silica of vegetable origin without starches or proteins, 44% ; b) calcium oxide, 50%; c) fluorite, 6%.
- the percentages described above may vary, however, these variations will partially reduce some of the properties of the product.
- the percentage of pure silica of vegetable origin can be reduced to 39% and increase up to 60%; the percentage of minerals can fluctuate between 4% and 6%; the remaining weight will correspond to the calcium oxide, which at no time may exceed 55% of the total weight of the formula.
- pure silica of vegetable origin is preferably extracted from corn fiber, grass, husk or rice bran and / or coconut fiber.
- the insulating fiber for the purpose of better operation of the insulating fiber, it is recommended to use it, in the casting process, during the refining stage, immediately after the first sampling and on the liquid slag Y during the continuous casting process, ie , in distributors.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Products (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/MX2010/000160 WO2012087091A1 (es) | 2010-12-21 | 2010-12-21 | Proceso para producir una fibra aislante, térmica y orgánica y producto resultante |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/MX2010/000160 WO2012087091A1 (es) | 2010-12-21 | 2010-12-21 | Proceso para producir una fibra aislante, térmica y orgánica y producto resultante |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012087091A1 true WO2012087091A1 (es) | 2012-06-28 |
Family
ID=46314177
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/MX2010/000160 WO2012087091A1 (es) | 2010-12-21 | 2010-12-21 | Proceso para producir una fibra aislante, térmica y orgánica y producto resultante |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2012087091A1 (es) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4105065A1 (de) * | 1991-02-19 | 1991-06-13 | Kramer Gmbh & Co Kg Hans | Waermedaemmende, temperaturstabile abdeckmasse fuer metallschmelzen |
DE19728368C1 (de) * | 1997-07-03 | 1999-03-04 | Georg Heller | Isolierende Abdeckmittel für Stahl |
US6342088B1 (en) * | 1997-03-26 | 2002-01-29 | Ricegrower's Cooperative Limited | Insulation material |
US6773486B2 (en) * | 2001-08-28 | 2004-08-10 | Exothermic Distribution Corporation | Use of rice hull ash in steelmaking |
CN101474665A (zh) * | 2007-12-31 | 2009-07-08 | 大连核心铸造技术工程研究所 | 覆盖剂 |
RU2366535C1 (ru) * | 2008-05-22 | 2009-09-10 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Шлакообразующая смесь |
ES2331522T3 (es) * | 2004-05-29 | 2010-01-07 | Stefanie Heller | Granulados aislantes para la colada continua de metales y su procedimiento de produccion. |
-
2010
- 2010-12-21 WO PCT/MX2010/000160 patent/WO2012087091A1/es active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4105065A1 (de) * | 1991-02-19 | 1991-06-13 | Kramer Gmbh & Co Kg Hans | Waermedaemmende, temperaturstabile abdeckmasse fuer metallschmelzen |
US6342088B1 (en) * | 1997-03-26 | 2002-01-29 | Ricegrower's Cooperative Limited | Insulation material |
DE19728368C1 (de) * | 1997-07-03 | 1999-03-04 | Georg Heller | Isolierende Abdeckmittel für Stahl |
US6773486B2 (en) * | 2001-08-28 | 2004-08-10 | Exothermic Distribution Corporation | Use of rice hull ash in steelmaking |
ES2331522T3 (es) * | 2004-05-29 | 2010-01-07 | Stefanie Heller | Granulados aislantes para la colada continua de metales y su procedimiento de produccion. |
CN101474665A (zh) * | 2007-12-31 | 2009-07-08 | 大连核心铸造技术工程研究所 | 覆盖剂 |
RU2366535C1 (ru) * | 2008-05-22 | 2009-09-10 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | Шлакообразующая смесь |
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