DE1571455A1 - Process for the production of graphite and charcoal bodies - Google Patents
Process for the production of graphite and charcoal bodiesInfo
- Publication number
- DE1571455A1 DE1571455A1 DE19661571455 DE1571455A DE1571455A1 DE 1571455 A1 DE1571455 A1 DE 1571455A1 DE 19661571455 DE19661571455 DE 19661571455 DE 1571455 A DE1571455 A DE 1571455A DE 1571455 A1 DE1571455 A1 DE 1571455A1
- Authority
- DE
- Germany
- Prior art keywords
- green
- combustion container
- container
- combustion
- moldings
- 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
-
- 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
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
- C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
- C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Coke Industry (AREA)
- Ceramic Products (AREA)
Description
Verfahren zur Herstellung von Graphit- und Kunstkohlekörpern Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von Graphit- und Kunstkohleformkörpern, bei dem die griznen Formkörper in einem Schüttpulver enthaltenden Verkokunäsofen, z.B. der Kammer eines Ringofens, verkokt werden.Process for the production of graphite and charcoal bodies The present The invention relates to a method for the production of graphite and charcoal moldings, in which the green moldings in a coke oven containing bulk powder, e.g. the chamber of a ring furnace.
Bei der Formgebung der gränen Körper können sich ä-le Fließstrukturen bilden, die beim Verkoken in den Brennkammern eines Ringofens zur Ausbildung von inhomogenen Stellen (Lunker und Risse) Anlaß geben. Besonders brennempfindlich ist feinkörniges Material, bei dem infolge der dichten Struktur durch die freiwerdenden flüchtigen Anteile vielfach Risse entstäien. Werden solche Körper in der üblichen Weise verkokt, d.h. eingebettet in eine Kokspulverschüttung, so können in denKörpern während des Verkokungsverfahrens Längsrisse entstehen.When shaping the green bodies, ole flow structures can occur form that when coking in the combustion chambers of a ring furnace for the formation of give rise to inhomogeneous areas (cavities and cracks). Is particularly sensitive to burning fine-grained material, in which due to the dense structure by the released volatile fractions often cause cracks. Will such bodies be in the usual Coked in the way, i.e. embedded in a coke powder bed, so can in the bodies Longitudinal cracks appear during the coking process.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die Bildung solcher Längsrisse vrährend der Verkokung feinkörnigen Materials zu verhindern. Zur Lösung dieser Aufgabe schlägt die Erfindung_vor, daß die Verkokung der grünen Formkörper in einem Brennbehälter erfolgt, der in dem Verkokungsofen angeordnet ist, wobei der Zwischenraum zwischen-Brennbehälter und zu verkokenden grünen Körper durch ein Schüttpulver ausgefüllt ist.The present invention is based on the object of education to prevent such longitudinal cracks during the coking of fine-grained material. To solve this problem, the invention proposes that the coking of the green Shaped body takes place in a combustion container, which is arranged in the coking furnace is, with the space between the combustion container and the green body to be coked is filled with a bulk powder.
Man kann vort ellhafterweLse in einem Brennbehälter gleichzeitig mehrere Kohlekörper brennen. Weiterhin wird zweckmäßigerweise ein im wesentlichen zylindrischer Brennbehälter verwendet, da dieser die auftretenden Spannungen am besten aufnehmen kann. Er kann aber auch leicht konisch geformt sein.You can prefer ellhafterweLse several at the same time in one combustion container Burn coal bodies. Furthermore, it is expedient an essentially cylindrical combustion container is used, as this reduces the stresses occurring on the best can accommodate. But it can also have a slightly conical shape.
Zweckmäßigerweise werden die grünen Körper vor dem Brennen in den Brennbehälter eingesetzt, das Schüttpulver in die Zwischenräume zwischen Brennbehälter und die grünen Formkörper eingefüllt und durch Rütteln verdichtet. Yorteilhafterweise versdüieß t man den Brennbehälter nach dem Füllen.Appropriately, the green bodies are in the before burning Firing container inserted, the bulk powder in the spaces between the firing container and the green moldings are filled in and compacted by shaking. Advantageously The combustion container is sprayed after filling.
Zur weiteren Erläuterung der Erfindung können die Figuren dienen.The figures can be used to further explain the invention.
'Die Figur 1 zeigt einen Brennbehälter 1, der zylindrische Form aufweist und vorzugsweise aus Stahl besteht; 3n den unter Zwischenlage von Schüttpulver die zu verkokenden grünen Formkörper 3 eingebettet. sind. Der Brennbehälter kann aber auch in dem Sinne konisch sein, daß der obere Durchmessec größer ist als der des Bodens.'Figure 1 shows a combustion container 1, which has a cylindrical shape and is preferably made of steel; 3n the with the interposition of bulk powder the to be coked green molded body 3 embedded. are. The combustion container can, however also be conical in the sense that the top diameter is greater than that of the Soil.
In Figur 2 ist ein Brennbehälter q- dargestellt, der ebenfalls zylindrisch
ausgebildet ist, jedoch im Gegensatz zu dem Brennbehälter 1 in Figur 1 nur zur Ausnahme
eines einzelnen zu brennenden grünen Formkörpers 5 bestimmt ist: Diesel ist in ähnlicher
Weise wie in Fig. 1 in Schüttpulver 6 gebettet. Selbstverständlich ist es möglich,
die Permeabilität der so hergestellten Kunstkohle- oder Graphitkörper durch ein
oder mehrere Imprägnierschritte noch zu vermindern. Ausführungsbeispiel
1
Elektroden vom .Durchmesser 80 mm und der Länge 1500 mm wurden aus einer
Mischung, bestehend aus 100 Teilen Petrolkoksstaub (=90/u) und 28 Teilen Teerpech
(Erweichungs-
Der metallische Brennbehälter hatte einen inneren Durchmesser von
450 mm. Der Brand wurde in einem Ringofen, wie in Beispiel 1 beschrieben, durchgefü.hrt,@In
der Tabelle 2 sind die physikalischen Werte der grünen, gebrannten und graphiti_(3-Lten
Elektroden angeführt.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEE0032247 | 1966-08-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1571455A1 true DE1571455A1 (en) | 1970-12-17 |
Family
ID=7075516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19661571455 Pending DE1571455A1 (en) | 1966-08-09 | 1966-08-09 | Process for the production of graphite and charcoal bodies |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1571455A1 (en) |
-
1966
- 1966-08-09 DE DE19661571455 patent/DE1571455A1/en active Pending
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