DE363441C - Process for burning cement, lime, magnesite and the like like in the rotary kiln - Google Patents

Process for burning cement, lime, magnesite and the like like in the rotary kiln

Info

Publication number
DE363441C
DE363441C DEK73188D DEK0073188D DE363441C DE 363441 C DE363441 C DE 363441C DE K73188 D DEK73188 D DE K73188D DE K0073188 D DEK0073188 D DE K0073188D DE 363441 C DE363441 C DE 363441C
Authority
DE
Germany
Prior art keywords
rotary kiln
magnesite
lime
burning cement
burning
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
DEK73188D
Other languages
German (de)
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.)
Fried Krupp Grusonwerk AG
Original Assignee
Fried Krupp Grusonwerk AG
Publication date
Priority to DEK73188D priority Critical patent/DE363441C/en
Application granted granted Critical
Publication of DE363441C publication Critical patent/DE363441C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
    • F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
    • F27B7/34—Arrangements of heating devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Details (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)

Description

Verfahren zum Brennen von Zement, Kalk, Magnesit u. dgl. im Drehofen. Die Erfindung geht von der Erkenntnis aus, daß bei den Drehöfen zum Brennen von Zement, Kalk, Magnesit u. dgl. der größte Teil -der aufgewendeten Wärme zum. Austreiben der Kohlensäure benötiä-t wird, und daß nur ein verhältnismäßig geringer Teil für die Sinterung erforderlich ist. Die Wärmeabgabe aus den Feuergasen an die Rohgutrnasse ist jedoch bei dem bisherigen Brennverfahren in der Kalzinierzone ungenügend. Dies beweist die hohe Temperatur der Abgase.Process for burning cement, lime, magnesite and the like in a rotary kiln. The invention is based on the knowledge that in the rotary kilns for burning Cement, lime, magnesite and the like. Most of the heat expended for. Expel the carbonic acid is required, and that only a relatively small part for sintering is required. The heat transfer from the fire gases to the raw material is, however, inadequate in the previous firing process in the calcining zone. this proves the high temperature of the exhaust gases.

Es ist derZweck derErfindwng, dieWärmeabgabe der Feuergase an das Rehgut in der Kalzinierzone zu: erhöhen, so d'aß die im Ofen zurVerfügung @stehendenWärmemengen besiser als. bisher ausgenutzt werden. Dies wird dadurch erreicht, daß ,die Feuergase, bevor sie aus der Kalzinierzone in die VorwärTnezone treten, gestaut werden.It is the purpose of the invention, the heat dissipation of the fire gases to the To: Increase the meat in the calcining zone, so that the amount of heat available in the furnace besiser than. have so far been exploited. This is achieved by the fact that the fire gases, before they exit the calcining zone into the preheating zone.

Die Stauung von Feuerungsgasen zwecks erhöhter Wärmeabgabe ist an und für sieh bekannt. Neu ist die Verwendung ,dieses Verfahrens bei Drehöfen in der Weise, daß die Gase beim ;Übergang aus der Kalzinierin die Vorwärmzone :gestaut werden. Hierdurch wird eine erhöhte Wirtschaftlichkeit des Drehofens und, eine vollkommenere Austreibung der Kohlensäure erreicht. In :der Zeichnung ist eine Ausführungsform eines zur Verwendung des neuen Verfahrens geeignetere Drehofens im Längsschnitt veranschaulicht.The stowage of combustion gases for the purpose of increased heat dissipation is on and known for seeing. The use of this process in rotary kilns in in such a way that the gases when; passing from the calciner into the preheating zone: dammed up will. This increases the efficiency of the rotary kiln and makes it more complete Expulsion of carbonic acid achieved. In: the drawing is an embodiment a longitudinal section of a rotary kiln that is more suitable for using the new process illustrated.

Gemäß diesem veranschaulichten Ausführungsbeispiel wird zwecksStauung derFeuergase,die an und- für sich zu anderen Zwecken bekannte Einschnürung der Drehofenwandung benutzt.In accordance with this illustrated embodiment, for the purpose of stowage derFeuergase, the constriction of the rotary kiln wall known per se for other purposes used.

Die Brennzone des Drehofens ist .mit a, die Kalzinierzone mit b, die Vorwärmzone mit c bezeichnet. Zwischen Kalzinierzone b und Vorwärmzone c ist eine Einschnürung d der Drehofenwandung vorgesehen zwecks Stauung der Feuergase. Die Stauung kann natürlich auch auf andere Weise erreicht werden.The burning zone of the rotary kiln is .with a, the calcining zone with b, the Preheating zone denoted by c. Between the calcining zone b and the preheating zone c there is one Constriction d of the rotary kiln wall provided for the purpose of stowing the fire gases. the Stowage can of course also be achieved in other ways.

Claims (1)

PATENTANSPRUCH: Verfahren zurr. Brennen von Zement, Kalk, Magnesit o. dgl. im Drehofen, bei idem die Feuergase an einer Stelle des Ofens gestaut werden, dadurch gekennzeichnet, daß die Stauung an der Grenze zwischen Kalzinier- undVorwäranzone erfolgt. PATENT CLAIM: Method zurr. Burning of cement, lime, magnesite or the like in the rotary kiln, in which the fire gases are dammed up at one point in the kiln, characterized in that the damming takes place at the boundary between the calcining and pre-heating zone.
DEK73188D Process for burning cement, lime, magnesite and the like like in the rotary kiln Expired DE363441C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK73188D DE363441C (en) Process for burning cement, lime, magnesite and the like like in the rotary kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK73188D DE363441C (en) Process for burning cement, lime, magnesite and the like like in the rotary kiln

Publications (1)

Publication Number Publication Date
DE363441C true DE363441C (en) 1922-11-09

Family

ID=7232320

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK73188D Expired DE363441C (en) Process for burning cement, lime, magnesite and the like like in the rotary kiln

Country Status (1)

Country Link
DE (1) DE363441C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549787A (en) * 1947-11-21 1951-04-24 John B Dube Calcining kiln
DE966057C (en) * 1951-04-19 1957-07-18 John Baptiste Dube Rotatable roasting or calcining furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549787A (en) * 1947-11-21 1951-04-24 John B Dube Calcining kiln
DE966057C (en) * 1951-04-19 1957-07-18 John Baptiste Dube Rotatable roasting or calcining furnace

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