DE813676C - Process for making refractory bricks - Google Patents

Process for making refractory bricks

Info

Publication number
DE813676C
DE813676C DEP7189A DEP0007189A DE813676C DE 813676 C DE813676 C DE 813676C DE P7189 A DEP7189 A DE P7189A DE P0007189 A DEP0007189 A DE P0007189A DE 813676 C DE813676 C DE 813676C
Authority
DE
Germany
Prior art keywords
refractory bricks
soda ash
bricks
added
production
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.)
Expired
Application number
DEP7189A
Other languages
German (de)
Inventor
Hans Dr Zieler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roechlingsche Eisen und Stahlwerke GmbH
Original Assignee
Roechlingsche Eisen und Stahlwerke GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Roechlingsche Eisen und Stahlwerke GmbH filed Critical Roechlingsche Eisen und Stahlwerke GmbH
Priority to DEP7189A priority Critical patent/DE813676C/en
Application granted granted Critical
Publication of DE813676C publication Critical patent/DE813676C/en
Expired legal-status Critical Current

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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/1315—Non-ceramic binders
    • 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
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Verfahren zur Herstellung feuerfester Steine Feuerfeste Steine und sonstige keramische Erzeugnisse werden bekanntlich aus Schamotte, Sintermagnesit, Quarz, Korund oder gebranntem Dolomit unter Vermengung mit den entsprechenden Bindemitteln Ton, kaustischer Magnesia, Klebsand usw. und Beigabe der dazu notwendigen Wassermengen geformt und getrocknet und anschließend in besonderen Ofen gebrannt. Diescr Brennproz._°ß ist sehr kostspielig und erfordert rund '/s der erzeugten Menge in Form von Brennstoff.Process for making refractory bricks Refractory bricks and other ceramic products are known to be made of chamotte, sintered magnesite, Quartz, corundum or burnt dolomite mixed with the appropriate binders Clay, caustic magnesia, sticky sand, etc. and adding the necessary amounts of water shaped and dried and then fired in a special oven. This firing process _ ° ß is very costly and requires around ½ of the amount produced in the form of fuel.

Gemäß vorliegender Erfindung wurde gefunden, daß dies,:r kostspielige und umständliche Brennprozeß abgekürzt oder ganz vermieden werden kann, wenn als Bindemittel zu den obengenannten feuerfesten Materialien die im Eisenhüttenbetrieb bei der Roheise,nentschwefelung anfallende Sodaschlacke verw-:ndet wird. Es wurde festgestellt, daß bercits wenige Prozente allein oder mit feuerfesten Materialien zusammen vermahl:ner Sodaschlacke, unter die feuerfestenMaterialien Schamotte, Sintermagnesit, Silikamehl usw. gemischt, genügen, um die aus dieser Mischung mit wenig Wass-r hergestellten Formsteine usw. nach wenigen Tagen oder Stunden so weit zum Erhärten zu bringen, daß sie transportabel sind oder sogar direkt vermauert w@:rden können. Ein leichtes Erwärm.:,n bereits auf 10o° C fördert den Erhärtungsvorgang sehr stark.In accordance with the present invention, it has been found that: r costly and cumbersome burning process can be shortened or avoided entirely if as Binder for the above refractory materials used in the ironworks In the case of pig iron desulphurization, the soda ash is used. It was found that bercits few percent alone or with refractories ground together: soda ash, under the refractory materials chamotte, sintered magnesite, Mixing silica flour, etc., suffices to make those made from this mixture with a little water Bringing shaped stones etc. to hardening after a few days or hours that they are transportable or can even be walled up directly. A simple Warming:, n already at 10o ° C promotes the hardening process very strongly.

Aber auch bei der Herstellung besonders empfindlicher feuerfester Steine, bei denen ein nachträglich-cs Brennen unumgänglich ist, ist ein geringer Zusatz von Sodaschlacke oder von. mit Schamotte, Magnesit usw. vermahlener Sodaschlacke von großem Vorteil, da die 'Sfeine'dadurch schon nach kürzester Zeit kantenfest und somit gut transportabel werden.But also in the manufacture of particularly sensitive refractories Stones for which subsequent firing is unavoidable is a minor one additive of soda ash or of. soda ash ground with chamotte, magnesite, etc. This is a great advantage, as the 'Sfeine' has a firm edge after a very short time and thus become easily transportable.

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung feuerfester Steine und sonstiger keramischer Erzeugnisse aus den üblichen feuerfesten Materialien, dadurch gekennzeichnet, daß unter teilweiser oder gänzlicher Vermeidung des bisher üblichen Brennens die bei der Roheisenentschwefelung anfallende Sodaschlacke als Bindemittel zu- . gesetzt wird. PATENT CLAIMS: i. A process for the production of refractory bricks and other ceramic products from the usual refractory materials, characterized in that the soda ash obtained during hot metal desulphurisation is added as a binding agent while partially or completely avoiding the previously usual burning. is set. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß der Erhärtungsvorgang durch Erwärmen der geformten -Steine usw. beschleunigt wird. ' ' 2. The method according to claim i, characterized in that that the hardening process is accelerated by heating the shaped stones, etc. will. '' 3. Verfahren nach Anspruch i und 2, dadurch gekennzeichnet, daß bei der Herstellung normaler, nachträglich zu brennender feuerfester Steine usw. zum Zwecke des schnelleren Erhärtens der geformten Steine usw. Sodaschlacke zur Masse zugesetzt wird. Angezogene Druckschriften: I>eütsch@e,Patentschriften Nr.723 558,739 165/gob, 738..o56/12 g; Neumann, Ergänzungswerk zu Musprattis Encyklopädischem Handbuch der Techn. Chemie 1927 Bd. 11/2, S. 1362.3. The method according to claim i and 2, characterized in that in the production of normal refractory bricks to be subsequently burned, etc., for the purpose of faster hardening of the shaped bricks, etc., soda ash is added to the mass. Cited publications: I> eütsch @ e, patent specifications 723 558,739 165 / gob, 738..o56 / 12 g; Neumann, supplement to Muspratti's Encyclopaedic Handbook of Techn. Chemistry 1927, Vol. 11/2, p. 1362.
DEP7189A 1948-10-02 1948-10-02 Process for making refractory bricks Expired DE813676C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP7189A DE813676C (en) 1948-10-02 1948-10-02 Process for making refractory bricks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP7189A DE813676C (en) 1948-10-02 1948-10-02 Process for making refractory bricks

Publications (1)

Publication Number Publication Date
DE813676C true DE813676C (en) 1951-09-17

Family

ID=7361065

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP7189A Expired DE813676C (en) 1948-10-02 1948-10-02 Process for making refractory bricks

Country Status (1)

Country Link
DE (1) DE813676C (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE723558C (en) * 1940-10-22 1943-05-15 Veitscher Magnesitwerke Act Ge Refractory mass for the production of stones or rammed earth for lining rotary tubes
DE738056C (en) * 1940-10-04 1943-08-03 Krupp Ag Process for the recovery of soda ash
DE739165C (en) * 1942-08-30 1943-09-14 Veitscher Magnesitwerke Act Ge Refractory masses for the production of stones or ramming masses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738056C (en) * 1940-10-04 1943-08-03 Krupp Ag Process for the recovery of soda ash
DE723558C (en) * 1940-10-22 1943-05-15 Veitscher Magnesitwerke Act Ge Refractory mass for the production of stones or rammed earth for lining rotary tubes
DE739165C (en) * 1942-08-30 1943-09-14 Veitscher Magnesitwerke Act Ge Refractory masses for the production of stones or ramming masses

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