AT22286B - Process for the production of portland cement. - Google Patents

Process for the production of portland cement.

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Publication number
AT22286B
AT22286B AT22286DA AT22286B AT 22286 B AT22286 B AT 22286B AT 22286D A AT22286D A AT 22286DA AT 22286 B AT22286 B AT 22286B
Authority
AT
Austria
Prior art keywords
portland cement
production
furnaces
flame
burned
Prior art date
Application number
Other languages
German (de)
Inventor
Friedrich Carl Wilhelm Timm
Original Assignee
Friedrich Carl Wilhelm Timm
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 Friedrich Carl Wilhelm Timm filed Critical Friedrich Carl Wilhelm Timm
Application granted granted Critical
Publication of AT22286B publication Critical patent/AT22286B/en

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  • Curing Cements, Concrete, And Artificial Stone (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von Portlandzement. 



   Die Herstellung von Portlandzement geschieht heute in solchen Fällen, wo es sich nicht um von der Natur richtig zusammengesetzte Rohstoffe handelt, fast immer derart, dass die kalk-und tonhaltigen Rohstoffe durch trockene oder nasse Aufbereitung auf möglichste Feinheit gebracht und darauf entweder wieder zu grösseren Brocken (meistens Ziegeln) verformt und in Brennöfen mit feststehendem Feuerherd   (Schacht- oder Hingöfen)   zu Klinkern gebrannt werden, oder aber die Rohmasse wird ohne weitere Verformung Flammöfen mit einem sich ständig drehenden Herd zugeführt und in diesen zu Klinkern gebrannt. Der Nutzeffekt der Öfen der ersten Klasse ist wesentlich besser als der der zweiten.

   Handelt es sich um eine Zementrohmasse mit wenig oder gar keinem Wasser, so beansprucht die Austreibung der   Kohlensäure,   also das Vorbrennen, die grösste Wärmemenge des ganzen   Brennvorganges.   



   Um nun bei der Herstellung von Portlandzement an Brennstoff zu sparen, werden nach dem vorliegenden Verfahren die aus dem Bruch kommenden Rohstoffe zuerst in Schacht-oder Ringofen von ihrer Kohlensäure befreit, darauf aufbereitet und dann erst in den bekannten   Drehrohröfen   fertig gebrannt. Es ist zwar bekannt, zwecks Herstellung von Zement u. dgl. Öfen verschiedener Bauart aneinander zu reihen. Das Neue des vorliegenden Verfahrens besteht aber darin, dass zum Vorbrennen des Gutes die bekannten   Schacht-oder Ringöfen   und nur   7.     1101 Fertigbrennen   Flammöfen verwendet werden sollen. 

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



   <Desc / Clms Page number 1>
 



  Process for the production of portland cement.



   Nowadays, Portland cement is produced in cases where the raw materials are not correctly composed by nature, almost always in such a way that the lime and clay-containing raw materials are brought to the greatest possible fineness by dry or wet processing and then either again into larger chunks (mostly bricks) are deformed and burned to clinker in kilns with a fixed hearth (shaft or Hingöfen), or the raw material is fed without further deformation to flame ovens with a constantly rotating hearth and burned in these to clinker. The efficiency of the first class stoves is much better than that of the second.

   If it is a raw cement mass with little or no water, the expulsion of the carbonic acid, i.e. the pre-burning, takes up the greatest amount of heat in the entire burning process.



   In order to save fuel in the production of Portland cement, the raw materials coming from the quarry are first freed of their carbonic acid in a shaft or ring furnace, then processed and only then completely burned in the known rotary kiln. Although it is known for the purpose of producing cement u. Like. Furnaces of different types to be strung together. The novelty of the present process, however, consists in the fact that the known shaft or ring ovens and only 7,1101 finish-burning flame ovens are to be used for pre-burning the material.

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

 

Claims (1)

EMI1.1 Verfahren zur Herstellung von Portlandzement durch eine besondere Ausführung des bekannten Brennens in zwei Stufen, gekennzeichnet durch ein aufeinander folgendes Brennen in Schacht-oder Ringöfen und in Flammöfen in der Weise, dass die Rohstoffe von ihrer Kohlensäure ganz oder teilweise in den wirtschaftlich günstiger arbeitenden Öfen der ersten Art befreit werden, ohne dabei zu verfritten, und darauf weiter aufbereitet, gemischt und in Flammöfen zu Klinkern gebrannt werden. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. EMI1.1 Process for the production of Portland cement by a special execution of the known firing in two stages, characterized by successive firing in shaft or ring furnaces and in flame furnaces in such a way that the raw materials are completely or partially in the more economically efficient furnaces of the first type can be freed without fritting, and then further processed, mixed and burned to clinker in flame ovens. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT22286D 1903-05-19 1903-05-19 Process for the production of portland cement. AT22286B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT22286T 1903-05-19

Publications (1)

Publication Number Publication Date
AT22286B true AT22286B (en) 1905-12-11

Family

ID=3530405

Family Applications (1)

Application Number Title Priority Date Filing Date
AT22286D AT22286B (en) 1903-05-19 1903-05-19 Process for the production of portland cement.

Country Status (1)

Country Link
AT (1) AT22286B (en)

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