AT136400B - Process for expanding slag by bringing it into contact with water. - Google Patents

Process for expanding slag by bringing it into contact with water.

Info

Publication number
AT136400B
AT136400B AT136400DA AT136400B AT 136400 B AT136400 B AT 136400B AT 136400D A AT136400D A AT 136400DA AT 136400 B AT136400 B AT 136400B
Authority
AT
Austria
Prior art keywords
slag
contact
water
bringing
furnace
Prior art date
Application number
Other languages
German (de)
Original Assignee
Treibacher Chemische Werke Ag
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 Treibacher Chemische Werke Ag filed Critical Treibacher Chemische Werke Ag
Application granted granted Critical
Publication of AT136400B publication Critical patent/AT136400B/en

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  • Gasification And Melting Of Waste (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Verfahren zum Aufblähen von Schlacke durch Zusammenbringen   mit Wasser. 



   Die bei den verschiedenen metallurgischen Prozessen anfallenden Schlacken, z. B. Hochofenschlacke, werden allgemein zur Herstellung von   Baumaterialien     verwendet. Fm leichtes Material.   sogenannten   Kunstbims   herzustellen, wird die Schlacke in flüssigem Zustande mit Wasser in Berührung gebracht, wodurch sie sich aufbläht. Hiefür sind verschiedene Vorrichtungen bekannt.

   Es gibt aber Schlacken, welche sich infolge ihrer Zusammensetzung und dem Verlauf des metallurgischen Prozesses für die Herstellung von   Kunstbims   nicht ohne weiteres eignen,   insbesondere wenn   sie eine zu niedere Temperatur beim Zusammentreten mit dem Wasser haben. 
 EMI1.1 
 Kunststein,   sogenanntem   Kunstbims, eignen, wenn man Jenselben nach dem Verlassen des Ofens, in welchem sie erzeugt werden,   nachträglich Wärme zuführt,   bevor sie mit dem Wasser in Berührung gebracht werden. Diese Temperaturerhöhung wird durch einen zweiten Ofen oder durch einen Heiz- 
 EMI1.2 
 



   Schlacken, welche an sieh einen niedrigen Schmelzpunkt aufweisen, erfordern   behrfs     Erhöhung   des   Schmelzpunktes   auf eine Temperatur, welche sich für das   Aufblähen   besonders günstig erweist, Zuschläge nach dem Verlassen des Ofens, wie z. B. von Kalk, Tonerde oder Koks. Durch diese Zusätze wird die Zusammensetzung der Schlacke entweder durch Reduktion des Mangans oder Zersetzung der Flussmittel derart verändert, dass der Schmelzpunkt der Schlacke erhöht wird. oder sie ändern die Zusammensetzung durch Bildung von Verbindungen höheren   Sehmelzpunktes   derart, dass eine höhere Temperatur durch Wärmezufuhr leicht erzielbar ist. 



   PATENT-ANSPRÜCHE :
1. Verfahren zum Aufblähen von Schlacke durch Zusammenbringen mit Wasser, dadurch gekennzeichnet, dass die Schlacke, welche den Ofen mit einer tieferen Temperatur   verlässt.   als zum Aufblähen nötig ist, auf eine höhere Temperatur erhitzt wird, bevor sie mit Wasser in   Berührung   kommt. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Process for expanding slag by bringing it into contact with water.



   The slag produced in the various metallurgical processes, e.g. B. blast furnace slag, are commonly used in the manufacture of building materials. Fm light material. To produce so-called artificial pumice, the slag is brought into contact with water in a liquid state, causing it to expand. Various devices are known for this.

   There are, however, slags which, due to their composition and the course of the metallurgical process, are not readily suitable for the production of artificial pumice, especially if they are too low when they come into contact with the water.
 EMI1.1
 Artificial stone, so-called artificial pumice, is suitable if heat is subsequently added to the other after leaving the furnace in which they are produced, before they are brought into contact with the water. This increase in temperature is achieved by a second furnace or by a heating
 EMI1.2
 



   Slags, which in themselves have a low melting point, require behrfs to increase the melting point to a temperature which proves to be particularly favorable for the expansion, surcharges after leaving the furnace, such as. B. of lime, clay or coke. These additives change the composition of the slag either by reducing the manganese or by decomposing the flux in such a way that the melting point of the slag is increased. or they change the composition by forming compounds with a higher melting point in such a way that a higher temperature can easily be achieved by supplying heat.



   PATENT CLAIMS:
1. A method for expanding slag by bringing it into contact with water, characterized in that the slag which leaves the furnace at a lower temperature. heated to a higher temperature than necessary for puffing before it comes into contact with water.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

2. Ausführungsform des Verfahrens nach Anspruch 1. dadurch gekennzeichnet, dass der Schlacke nach dem Verlassen des Ofens Zuschläge von Stoffen, wie z. B. Kalk, Tonerde, Koks gemacht werden, welche es ermöglichen, dass die Schlacke auf eine hohe Schmelztemperatur gebracht werden kann. 2. Embodiment of the method according to claim 1, characterized in that the slag after leaving the furnace, additives of substances such. B. lime, clay, coke can be made, which make it possible that the slag can be brought to a high melting temperature. 3. Einrichtung zur Durchführung des Verfahrens nach Anspruch 1 bzw. 2, dadurch gekennzeichnet, dass ein Apparat zur Erhöhung der Temperatur der Schlacke zwischen dem Ofen, in welchem die Schlacke erzeugt wird und der Aufblähvorrichtung angebracht ist. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 3. Device for carrying out the method according to claim 1 or 2, characterized in that an apparatus for increasing the temperature of the slag is attached between the furnace in which the slag is generated and the expansion device. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT136400D 1933-02-23 1933-02-23 Process for expanding slag by bringing it into contact with water. AT136400B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT136400T 1933-02-23

Publications (1)

Publication Number Publication Date
AT136400B true AT136400B (en) 1934-01-25

Family

ID=3639211

Family Applications (1)

Application Number Title Priority Date Filing Date
AT136400D AT136400B (en) 1933-02-23 1933-02-23 Process for expanding slag by bringing it into contact with water.

Country Status (1)

Country Link
AT (1) AT136400B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089679B (en) * 1957-03-09 1960-09-22 En Versorgung Schwaben A G Method and device for the production of porous slag as a tensile impact material for concrete or the like from boiler slag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1089679B (en) * 1957-03-09 1960-09-22 En Versorgung Schwaben A G Method and device for the production of porous slag as a tensile impact material for concrete or the like from boiler slag

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