EP2601318A1 - Koks- und titanhaltiger zuschlagstoff und dessen verwendung zur reparatur der auskleidung von metallurgischen gefässen - Google Patents
Koks- und titanhaltiger zuschlagstoff und dessen verwendung zur reparatur der auskleidung von metallurgischen gefässenInfo
- Publication number
- EP2601318A1 EP2601318A1 EP11761487.5A EP11761487A EP2601318A1 EP 2601318 A1 EP2601318 A1 EP 2601318A1 EP 11761487 A EP11761487 A EP 11761487A EP 2601318 A1 EP2601318 A1 EP 2601318A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- titanium
- coke
- additive according
- aggregate
- compounds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
- C21B5/003—Injection of pulverulent coal
-
- 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
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1636—Repairing linings by projecting or spraying refractory materials on the lining
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/007—Conditions of the cokes or characterised by the cokes used
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/04—Blast furnaces with special refractories
- C21B7/06—Linings for furnaces
-
- 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
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
-
- 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
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1678—Increasing the durability of linings; Means for protecting
Definitions
- the invention relates to a coke- and titanium-containing additive, to a process for the production thereof and to its use for repairing the lining of metallurgical vessels, and to a process for accelerating the formation of highly refractory titanium compounds by direct reduction in metallurgical processes with its use.
- the use of titanium-containing aggregates to repair the lining of metallurgical vessels, e.g. Blast furnaces has been known for a long time.
- the goal is to produce titanium-containing aggregates to form titanium-containing, high-refractory / wear-resistant compounds, such as titanium dioxide.
- titanium-containing, high-refractory / wear-resistant compounds such as titanium dioxide.
- TiC, TiN, TiCN, etc. which then precipitate in further steps partially in the endangered by wear processes areas of the respective refractory lining and selbige protect and / or repair.
- PCI pulverized coal injection - hereinafter referred to as PCI
- PCI pulverized coal injection - hereinafter referred to as PCI
- coke is used as fuel and as a reducing agent in iron production z. B. used in blast furnaces.
- the production of coke is carried out by pyrolysis of the coal. In smelting, coke with a grain size between 20 to 150 mm is processed.
- PCI coal are usually carbonaceous
- Drying process can be dried at low temperatures.
- the carbonaceous raw materials in some cases fine-grained titanium carriers are added and then blown into the blast furnace to then form titanium carbides or titanium carbonitrides in the reaction chamber of the blast furnace.
- Liquid phases such as pig iron and slag to produce the desired wear-resistant titanium carbides and then deposit these wear-resistant titanium carbides in the second step on the respectively repaired / protected refractory linings with the highest possible yield.
- the object of the invention is the yield of highly refractory formed
- blowing of PCI mixtures together with high-speed titanium compounds has the effect statistically only rarely on each other.
- the titanium compounds revert to the gasified hydrocarbons of the injection coal
- the object can be achieved by providing the method according to the invention and the additive according to the invention from coke-containing materials and titanium-containing compounds.
- the method according to the invention it is thus possible, in particular to increase the amount of highly refractory titanium compounds formed per unit time and at the same time the metallurgical application of the supplied to the system
- the invention thus also relates to an additive according to the invention of coke-containing material or mixtures of several different coke-containing materials and titanium-containing compounds for incorporation into a
- coked material also includes a carbonaceous material such as coal, coke or mixtures of several different ones Coke-containing materials, understood that only a small proportion of less than 25 wt .-%, preferably less than 10 wt .-% of the increased
- Volatile, especially organic substances such as
- the carbonaceous material can be subjected to a thermal pretreatment, in which the volatile substances are expelled and so in the
- the material is usually dried in the first phase, if a water content is present.
- the additive according to the invention may contain up to 60% by weight of water, preferably up to 35% by weight of water. As a rule, and depending on the application is then at such water contents a partial or drying as a thermal
- the aggregate of coke-containing material and titanium-containing compounds according to the invention can thus particles of the coke-containing material and the
- a powder mixture particle sizes of less than 200 ⁇ preferably less than 100 ⁇ used while in an introduction into the metallurgical vessel by other means larger particle sizes of up to 200mm are permitted.
- the grain size can be determined from the
- Blast furnace coke grades HK 1 (> 80 mm), HK 2 (> 60 mm), HK 3 (> 40 mm) and HK 4 (> 20 or 25 mm) are selected, the smaller sizes being preferred. Therefore, a coarser coke can be further crushed or ground until an advantageous grain size of less than 10mm results.
- the use of coke breeze with a grain size of up to 10 mm is also an advantage.
- hydrocarbons By way of example, petroleum coke, coke breeze, activated carbon or spent activated carbon, and charcoal and anthracite, preferably with a low volatile content of less than 10% by weight, are mentioned here. It is particularly advantageous for the carbon or the carbonaceous material, which is fed to the coking, in the coking titanium-containing
- this lumpy material containing coke and titanium-containing materials "side by side", the metallurgical vessel, as in a blast furnace from above via the filling as an addition to Möller supply.
- the lumpy material can also be advantageously ground to a particle size which is suitable for injection.
- Aggregate have a grain size of 0 to 200, preferably up to 150 mm.
- the aggregate according to the invention of coke-containing material and titanium-containing compounds advantageously has a fineness of 90%, preferably 100%, less than 100 mm, preferably less than 10 mm, more preferably less than 1 mm and most preferably less than 0.5 mm.
- the additive according to the invention is
- This last embodiment is particularly for the Blowing into a metallurgical vessel, such as a blast furnace, suitable for blow molding.
- the invention also provides a coke-containing and titanium-containing aggregate whose particles have at least 95% of a diameter of at most 150 ⁇ and a water content of 0.1 to 60%, and a method for producing the additive according to procedures described above, thus also a process for producing the aggregate by mixing the carbonaceous fine particulate coke with the finely divided titanium compounds.
- the invention also provides a coke-containing and titanium-containing aggregate having a particle size of 10 to 150 mm and a water content of 0.1 to 15
- This coke- and titanium-containing additive can also be advantageously prepared by mixing the coke-containing material with the titanium-containing compounds and, depending on the field of application, to be ground together and thus the desired granulation and intimate mixing of the preferably finely divided
- the material used to make the coke as a coke-forming agent such as charcoal, e.g. Hard coal, lignite, pitch, tar and similar carbonaceous materials together with the titaniferous ones
- the aggregate of coke-containing material and titanium-containing compounds according to the invention may contain 10 to 98% by weight, preferably 25 to 95% by weight, particularly preferably 35 to 90% by weight, very particularly preferably 45 to 80% by weight of coke-containing material, especially coke, calculated from the
- the inventive aggregate of titanium-containing compounds and carbonaceous material especially in the production of the
- common coking preferably contains 10 to 65 wt .-% of titanium-containing material / compounds and an amount of 35 to 90 wt .-% of coke-containing material, preferably an amount of 20 to 55 wt .-%, of titanium-containing material / compounds and an amount of from 45 to 80% by weight of coke-containing material. All information in the description in% by weight to solids content refers to a dried at 105 ° C material.
- the titanium-containing materials used to produce the additive according to the invention generally contain 5 to 60, preferably 10 to 60 wt .-% Ti, usually as Ti0 2 or in conjunction with other metals as titanates.
- synthetic titanium dioxide-containing materials those from the production of titanium dioxide, by the sulfate or chloride process, as intermediates or co-products or residuals from the ongoing Ti0 2 production can be used become. It is also possible that residues or wastes from the chemical industry or paper industry or from titanium extraction are used as synthetic titanium-containing materials.
- the typical Ti0 2 residues are Ti0 2 residues from the Ti0 2 production after the sulphate process. It is also advantageous to use titanium-containing catalysts consumed in the context of the invention, for example DENOX catalysts or Claus catalysts.
- materials such as natural titanium support such. B llmenite, ilmenite sand, rutile sand and / or titanium-containing slags (eg slag) which are capable of forming refractory titanium carbonitrides under reaction conditions in the blast furnace.
- the above-mentioned synthetic and natural titanium-containing carriers may be used singly or in mixtures for the production of coke-containing titanium compounds.
- the additive according to the invention comprising coke-containing material and titanium-containing compounds may contain other constituents of metal oxides and / or metal hydroxides such as Al 2 O 3 , iron oxides, CaO, MgO, SiO 2 , ZrO 2 , Al (OH) 3 , Ca (OH) 2 , Mg (OH) 2 or mixed oxides thereof and mixtures of several components thereof and further ingredients such as slag formers in an amount of preferably up to 50 wt .-% of the total amount.
- metal oxides and / or metal hydroxides such as Al 2 O 3 , iron oxides, CaO, MgO, SiO 2 , ZrO 2 , Al (OH) 3 , Ca (OH) 2 , Mg (OH) 2 or mixed oxides thereof and mixtures of several components thereof and further ingredients such as slag formers in an amount of preferably up to 50 wt .-% of the total amount.
- the aggregate of coke-containing material and titanium-containing compounds according to the invention can also be blown directly into damaged areas in the region of the frame.
- the additive according to the invention may preferably have a water content of 0.1 to 15 wt .-%.
- the addition of the inventive / aggregate of coke-containing material and titanium-containing compounds in the course of the preparation of finely divided injection coal (PCI) for the injection into the blast furnace can already be added to the carbonaceous raw materials.
- the amount of addition of inventive additive from Coke-containing material and titanium-containing compounds may be at from 0.5 to 100% by weight, preferably 0.5 to 80 wt .-%, preferably 1 to 50 wt .-% and most particularly at 2 to 40 wt .-% of the blown Materials lie.
- the aggregate of coke-containing material and titanium-containing compounds according to the invention can be added to a carbonaceous material such as oil, heavy oil, tar, pitch and / or natural gas and then blown into the metallurgical vessel via the blow molds.
- a carbonaceous material such as oil, heavy oil, tar, pitch and / or natural gas
- Coking processes can be saved and the starting materials can be used free of volatile components and other impurities.
- the use of the additive is thus "energy-neutral" because the blast furnace no energy for the evaporation of volatile components and the
- Titanium carbides significantly faster than the blowing of commonly used pulverized coal particles. Due to the local proximity of the two reactants in situ, the introduction of the coke- and titanium-containing additives into a furnace results in the formation of highly wear-resistant materials
- Titanium compounds without the reaction is substantially hindered by volatile components. As a result, significantly more per unit time formed high-refractory titanium compounds, which then deposited then to be protected refractory linings.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Coke Industry (AREA)
- Blast Furnaces (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11761487.5A EP2601318B1 (de) | 2010-08-03 | 2011-07-22 | Koks- und titanhaltiger zuschlagstoff und dessen verwendung zur reparatur der auskleidung von metallurgischen gefässen |
PL11761487T PL2601318T3 (pl) | 2010-08-03 | 2011-07-22 | Wypełniacz zawierający koks i tytan i jego zastosowanie do naprawy wyłożenia zbiorników metalurgicznych |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010038831 | 2010-08-03 | ||
EP11151418A EP2415880A1 (de) | 2010-08-03 | 2011-01-19 | Koks- und titanhaltiger Zuschlagsstoff und dessen Verwendung zur Reparatur der Auskleidung von metallurgischen Gefäßen |
EP11761487.5A EP2601318B1 (de) | 2010-08-03 | 2011-07-22 | Koks- und titanhaltiger zuschlagstoff und dessen verwendung zur reparatur der auskleidung von metallurgischen gefässen |
PCT/DE2011/075173 WO2012022343A1 (de) | 2010-08-03 | 2011-07-22 | Koks- und titanhaltiger zuschlagstoff und dessen verwendung zur reparatur der auskleidung von metallurgischen gefässen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2601318A1 true EP2601318A1 (de) | 2013-06-12 |
EP2601318B1 EP2601318B1 (de) | 2014-07-09 |
Family
ID=44117199
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11151418A Withdrawn EP2415880A1 (de) | 2010-08-03 | 2011-01-19 | Koks- und titanhaltiger Zuschlagsstoff und dessen Verwendung zur Reparatur der Auskleidung von metallurgischen Gefäßen |
EP11761487.5A Not-in-force EP2601318B1 (de) | 2010-08-03 | 2011-07-22 | Koks- und titanhaltiger zuschlagstoff und dessen verwendung zur reparatur der auskleidung von metallurgischen gefässen |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11151418A Withdrawn EP2415880A1 (de) | 2010-08-03 | 2011-01-19 | Koks- und titanhaltiger Zuschlagsstoff und dessen Verwendung zur Reparatur der Auskleidung von metallurgischen Gefäßen |
Country Status (9)
Country | Link |
---|---|
US (1) | US20130168889A1 (de) |
EP (2) | EP2415880A1 (de) |
JP (1) | JP5893023B2 (de) |
KR (1) | KR101524237B1 (de) |
BR (1) | BR112013002593A2 (de) |
DE (1) | DE102011079627A1 (de) |
ES (1) | ES2504980T3 (de) |
PL (1) | PL2601318T3 (de) |
WO (1) | WO2012022343A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2634831C2 (ru) * | 2013-01-07 | 2017-11-03 | Захтлебен Хеми Гмбх | Содержащий титан заполнитель, способ его изготовления, и его применение |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2149939A (en) * | 1936-05-08 | 1939-03-07 | Titanium Alloy Mfg Co | Crystalline granular titanium carbide and methods of making same |
US2805120A (en) * | 1954-04-29 | 1957-09-03 | Columbia Southern Chem Corp | Chlorination process |
GB898602A (en) * | 1957-05-01 | 1962-06-14 | British Aluminium Co Ltd | Improvements in or relating to electrolytic cells for the production of metals |
DE1904195A1 (de) * | 1969-01-29 | 1970-08-06 | Bergwerksverband Gmbh | Verwendung von Kokspellets als Kohlungsmittel fuer Eisen-und Stahlbaeder |
US3786133A (en) * | 1970-09-11 | 1974-01-15 | Quebec Iron & Titanium Corp | Titanium carbide preparation |
JPS50120406A (de) * | 1974-03-09 | 1975-09-20 | ||
GB1485332A (en) * | 1975-04-19 | 1977-09-08 | Chviruk V | Graphitic packing material for amalgam decomposers |
US4187117A (en) * | 1976-04-12 | 1980-02-05 | Quebec Iron And Titanium Corporation - Fer Et Titane Du Quebec, Inc. | Titanium slag-coke granules suitable for fluid bed chlorination |
FR2423546B1 (fr) * | 1978-01-21 | 1986-02-07 | Sumitomo Electric Industries | Metaux durs frittes et leur procede de fabrication |
JPS60228611A (ja) * | 1984-04-26 | 1985-11-13 | Nippon Kokan Kk <Nkk> | 高炉の操業方法 |
DE4419816C1 (de) * | 1994-06-07 | 1995-06-29 | Metallgesellschaft Ag | Titanhaltiger Zuschlagstoff und dessen Verwendung zur Erhöhung der Haltbarkeit der feuerfesten Ausmauerung eines Ofens und als Schlackenbildner |
GB9526516D0 (en) * | 1995-12-23 | 1996-02-28 | Surface Transforms Ltd | Metal containing refrectory products |
DE19830102C1 (de) * | 1998-07-06 | 1999-07-29 | Metallgesellschaft Ag | Verwendung eines bei der Herstellung von Titandioxid anfallenden feinkörnigen Produkts |
DE19935251A1 (de) * | 1999-07-27 | 2001-02-08 | Metallgesellschaft Ag | Anwendung TiO¶2¶-haltiger partikulärer Materialien für feuerfeste Erzeugnisse |
KR100726312B1 (ko) * | 2000-03-30 | 2007-06-08 | 신닛뽄세이테쯔 카부시키카이샤 | 탄소질 내화물 및 그의 제조 방법 |
MY138532A (en) * | 2000-08-31 | 2009-06-30 | Foseco Int | Refractory articles |
DE10343687A1 (de) * | 2003-09-20 | 2005-04-21 | Sachtleben Chemie Gmbh | Verfahren zur Verbesserung der Haltbarkeit von Kohlenstoff- oder Graphitelektroden durch Einsatz von TiO¶2¶-haltigen Produkten |
RU2280657C1 (ru) * | 2004-12-20 | 2006-07-27 | Алтайский государственный университет | Электропроводящий полимерный материал и способ его получения |
DE102005051953B3 (de) * | 2005-10-29 | 2007-06-06 | Tu Bergakademie Freiberg | Verfahren zur Herstellung von feuerfesten Formkörpern oder Massen |
AU2007280418A1 (en) * | 2006-08-02 | 2008-02-07 | Sachtleben Chemie Gmbh | Titanium-containing additive |
DE102008056809A1 (de) * | 2008-11-11 | 2010-05-27 | Kronos International, Inc. | Titanhaltiger Zuschlagstoff und Verfahren zu seiner Herstellung aus chloridhaltigen Rückständen der Titandioxidherstellung |
-
2011
- 2011-01-19 EP EP11151418A patent/EP2415880A1/de not_active Withdrawn
- 2011-07-22 DE DE102011079627A patent/DE102011079627A1/de not_active Withdrawn
- 2011-07-22 US US13/813,666 patent/US20130168889A1/en not_active Abandoned
- 2011-07-22 WO PCT/DE2011/075173 patent/WO2012022343A1/de active Application Filing
- 2011-07-22 KR KR1020137002744A patent/KR101524237B1/ko not_active IP Right Cessation
- 2011-07-22 PL PL11761487T patent/PL2601318T3/pl unknown
- 2011-07-22 JP JP2013522104A patent/JP5893023B2/ja not_active Expired - Fee Related
- 2011-07-22 EP EP11761487.5A patent/EP2601318B1/de not_active Not-in-force
- 2011-07-22 ES ES11761487.5T patent/ES2504980T3/es active Active
- 2011-07-22 BR BR112013002593A patent/BR112013002593A2/pt not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2012022343A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012022343A1 (de) | 2012-02-23 |
ES2504980T3 (es) | 2014-10-09 |
EP2601318B1 (de) | 2014-07-09 |
KR20130098992A (ko) | 2013-09-05 |
US20130168889A1 (en) | 2013-07-04 |
EP2415880A1 (de) | 2012-02-08 |
KR101524237B1 (ko) | 2015-05-29 |
PL2601318T3 (pl) | 2014-12-31 |
JP2013539001A (ja) | 2013-10-17 |
BR112013002593A2 (pt) | 2016-06-07 |
DE102011079627A1 (de) | 2012-02-09 |
JP5893023B2 (ja) | 2016-03-23 |
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