DE1533918B1 - Ramming compound for the partial lining of metallurgical vessels - Google Patents
Ramming compound for the partial lining of metallurgical vesselsInfo
- Publication number
- DE1533918B1 DE1533918B1 DE19671533918 DE1533918A DE1533918B1 DE 1533918 B1 DE1533918 B1 DE 1533918B1 DE 19671533918 DE19671533918 DE 19671533918 DE 1533918 A DE1533918 A DE 1533918A DE 1533918 B1 DE1533918 B1 DE 1533918B1
- Authority
- DE
- Germany
- Prior art keywords
- ramming
- ramming mass
- mass according
- magnesite
- grain material
- 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.)
- Pending
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/12—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/42—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on chromites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Nonmetallic Welding Materials (AREA)
Description
Die Erfindung bezieht sich auf feuerfeste Gefäße, und zwar betrifft sie feuerfeste Stampfmassen für die Teilauskleidung dieser Gefäße, deren Auskleidung aus basischen Formkörpern und Stampfmassen besteht und dem Angriff kieselsaure- und eisenhaltiger Schlacken ausgesetzt ist.The invention relates to refractory vessels, namely it concerns refractory ramming masses for the partial lining of these vessels, their lining consists of basic moldings and ramming masses and the attack contains silicic acid and iron Is exposed to slag.
Gefäße für die Handhabung geschmolzener Metalle und Schlacken können entweder mit gebrannten oder chemisch gebundenen Steinen oder mit einer Kombination beider ausgekleidet sein. Hierbei sind Steine deshalb zweckmäßig, weil sie einheitlich gute Dichte besitzen. Gebrannte Steine besitzen den Vorteil erhöhter Widerstandsfähigkeit gegenüber dem Schlakkenangriff. Gießfähige oder stampffähige Gemische, die allgemein als monolithische Produkte bekannt sind, dagegen können leicht und wirtschaftlich verarbeitet werden.Vessels for handling molten metals and slags can be either burned or chemically bonded stones or lined with a combination of both. Here are stones expedient because they have a uniformly good density. Burned stones have the advantage of increased Resistance to the slag attack. Pourable or tampable mixtures, which are commonly known as monolithic products, on the other hand, can be easily and economically processed will.
Es werden oftmals auch kombinierte Auskleidungen, die sowohl Steine als auch Stampfgemische aufweisen, angewandt, um so das schwierige Zerschneiden und Einpassen zu vermeiden, wie es beim vollständigen Auskleiden mit Steinen erforderlich ist. Diese Auskleidungen sind gewöhnlich so vorgesehen, daß der eingestampfte Teil während der Lebensdauer des Steinanteils der Auskleidung ersetzt werden kann, Dies ist jedoch nicht immer möglich. So läßt sich z. B. bei einem Vakuumentgasungsgefäß der eingestampfte Anteil der Auskleidung nicht ohne weiteres austauschen. Weiterhin wird jede Arbeitsunterbrechung eines Ofens als schädlich erachtet, und zwar insbesondere bei basischen Steinen, die gegenüber Wärmeschock besonders empfindlich sind.There are often combined linings, which have both stones and rammed earth, applied so as to avoid the difficult cutting and fitting as it is with the complete Lining with stones is required. These linings are usually designed to that the pulped part can be replaced during the life of the stone part of the lining, However, this is not always possible. So z. B. the pulped in a vacuum degassing vessel Do not simply replace part of the lining. Furthermore, every work interruption of a furnace is considered harmful, especially in the case of basic stones, which are opposite Are particularly sensitive to thermal shock.
Die der Erfindung zugrunde liegende Aufgabenstellung besteht deshalb darin, eine Gefäßauskleidung aus basischen, feuerfesten Formkörpern und eine Stampfmasse zu schaffen, die einheitliche Lebensdauer aufweist, d. h. keine Arbeitsunterbrechung für die Reparaturen der eingestampften Teile erforderlich macht, bevor nicht auch der Steinanteil soweit abgenutzt ist, daß ein vollständiger Austausch der Auskleidung erforderlich wird.The object on which the invention is based is therefore a vessel lining made of basic, refractory molded bodies and a To create ramming mass that has a uniform service life, d. H. no work interruption for makes the repairs of the pulped parts necessary, before the stone portion does not go so far is worn that a complete replacement of the liner is required.
Erfindungsgemäß wird deshalb eine feuerfeste '. Stampfmasse für metallurgische'Gefäße der beschrie-: benen Art vorgeschlagen, die aus einem größenklassierten Magnesit-Chromerz-Schmelzmaterial als Kornmaterial und einem organischen Bindemittel besteht. :,:■_ -■_■:■;-■ According to the invention is therefore a refractory '. Ramming mix for metallurgische'Gefäße the described: type surrounded proposed consisting of a size-graded chrome ore-magnesite-melt material as a grain material and an organic binder. :,: ■ _ - ■ _ ■: ■; - ■
Das Verhältnis von Magnesit zu Chromerz im erfindungsgemäßen Kornmaterial liegt z. B. zwischen 50:50 und 80:20. Das Kornmaterial kann folgende Klassierung aufweisen: 40 bis 60 Gewichtsprozent mit 1,7 bis 4,8 mm, 20 bis 30 Gewichtsprozent mit 0,6 bis 1,7 mm, Rest unter 0,21 mm, wovon 30 bis 70% unter 0,04 mm liegen.The ratio of magnesite to chrome ore in the grain material according to the invention is, for. B. between 50:50 and 80:20. The grain material can have the following classification: 40 to 60 percent by weight with 1.7 to 4.8 mm, 20 to 30 percent by weight with 0.6 to 1.7 mm, the remainder below 0.21 mm, of which 30 to 70% are less than 0.04 mm.
Ohne Ausbildung nachteiliger Wirkungen kann der Stampfmasse eine geringe Menge totgebrannter Magnesit oder Chromoxid bis zu 10 Gewichtsprozent zugesetzt werden. Als organisches Bindemittel ist jedes allgemein bekannte organische Bindemittel geeignet, z. B. Polysaccharid in Form von Pflanzengummi. Es hat sich als vorteilhaft erwiesen, Borsäure, und zwar bis zu 0,2%, der Stampfmasse zuzusetzen.Without developing any adverse effects, the rammed earth can contain a small amount of dead burned Magnesite or chromium oxide can be added up to 10 percent by weight. As an organic binder is any well-known organic binder is suitable, e.g. B. Polysaccharide in the form of vegetable gum. It has proven advantageous to add boric acid, up to 0.2%, to the ramming mass.
Da die speziellen Eigenschaften der Masse auf einem relativ reinen System beruhen, sollte die Stampfmasse vorzugsweise 97 % geschmolzenes Kornmaterial enthalten.Since the special properties of the mass are based on a relatively pure system, the Tamped mass preferably 97% molten grain material contain.
Neben dieser erfindungsgemäßen Stampfmasse kann für die Auskleidung des metallurgischen Gefäßes ein allgemein bekannter Magnesit- oderMagnesit-Chromerz-Stein verwendet werden, wie er allgemein in der Stahlindustrie angewandt wird.In addition to this ramming mass according to the invention, for the lining of the metallurgical vessel a well-known magnesite or magnesite-chrome ore brick can be used as it is commonly used is used in the steel industry.
Die erfindungsgemäß in Anwendung kommende Stampfmasse aus Magnesit-Chromerz-Schmelzmaterial als Kornmaterial ist genauso schlackenfest oder sogar schlackenfester als die oftmals angewandten basischen Steine. Die Stampfmasse ist bezüglich der Widerstandsfähigkeit den gebrannten Magnesit-Chrom-Steinen auf der Grundlage des Kornmaterials mit identischer Zusammensetzung gleichwertig und dem direkt gebunden Magnesit-Chrom-Stein sowie den typischen nicht gebrannten Chrom-Magnesit-Steinen überlegen. Auf Grund ihrer Widerstandsfähigkeit kann diese Stampfmasse in Kombination mit Steinauskleidungen ohne periodische Reparaturen oder Ersatz angewandt werden.The ramming mass of magnesite-chrome ore melt material used according to the invention as a grain material is just as slag-proof or even more slag-proof than the ones that are often used basic stones. The ramming mass is in terms of resistance to the burnt magnesite-chromium bricks on the basis of the grain material with identical composition equivalent and the directly bound magnesite-chrome stone and the typical unbaked chrome-magnesite stones think. Due to its resilience, this ramming mass can be used in combination can be applied with stone linings without periodic repairs or replacements.
Die Zeichnung zeigt ein typisches Vakuum-Entgasungsgefäß, das aus einer äußeren Metallumkleidung 1, einer benachbarten, isolierenden, feuerfesten Auskleidung 2 und einer Steinauskleidung 3 besteht, j Die Steinauskleidung besteht im wesentlichen aus " Standardformkörpern. Spezielle Formkörper werden an den Stellen 4, 5, 6 und 7 angewandt. Es verbleiben jedoch Flächen, die sich nicht leicht durch Schneiden und Einpassen von Steinen füllen lassen. Diese Flächen 11, 12 und 13 werden mit einer erfindungsgemäßen Stampfmasse vermittels Einstampfen gefüllt.The drawing shows a typical vacuum degassing vessel consisting of an outer metal casing 1, an adjacent, insulating, refractory lining 2 and a stone lining 3, j The stone lining consists essentially of "standard shaped bodies. Special shaped bodies are applied at positions 4, 5, 6 and 7. However, there remain areas that cannot easily be passed through Have the cutting and fitting of stones filled. These surfaces 11, 12 and 13 are with an inventive Rammed earth filled by means of ramming.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US53063066A | 1966-02-28 | 1966-02-28 | |
US57315966A | 1966-08-10 | 1966-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1533918B1 true DE1533918B1 (en) |
Family
ID=27063328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19671533918 Pending DE1533918B1 (en) | 1966-02-28 | 1967-01-25 | Ramming compound for the partial lining of metallurgical vessels |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1533918B1 (en) |
FR (1) | FR1512816A (en) |
GB (1) | GB1147831A (en) |
-
1967
- 1967-01-25 DE DE19671533918 patent/DE1533918B1/en active Pending
- 1967-01-30 GB GB446367A patent/GB1147831A/en not_active Expired
- 1967-02-28 FR FR96751A patent/FR1512816A/en not_active Expired
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
GB1147831A (en) | 1969-04-10 |
FR1512816A (en) | 1968-02-09 |
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