DE562497C - Circulating muffle furnace with a heatable double jacket formed using segments - Google Patents
Circulating muffle furnace with a heatable double jacket formed using segmentsInfo
- Publication number
- DE562497C DE562497C DEG69686D DEG0069686D DE562497C DE 562497 C DE562497 C DE 562497C DE G69686 D DEG69686 D DE G69686D DE G0069686 D DEG0069686 D DE G0069686D DE 562497 C DE562497 C DE 562497C
- Authority
- DE
- Germany
- Prior art keywords
- segments
- double jacket
- circulating
- muffle furnace
- jacket formed
- 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
Links
- 239000011819 refractory material Substances 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 2
- 239000011449 brick Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 description 1
- 229910039444 MoC Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021357 chromium silicide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
-
- 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
- F27B5/00—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated
- F27B5/04—Muffle furnaces; Retort furnaces; Other furnaces in which the charge is held completely isolated adapted for treating the charge in vacuum or special atmosphere
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Description
Umlaufender 1Vluffelofen mit unter Verwendung von Segmenten gebildetem beheizbarem Doppelmantel Das Hauptpatent bezieht sich auf einen umlaufenden Muffelofen, welcher aus einem Doppelmantel zusammengesetzt ist. Der äußere Mantel besitzt eine Ausmauerung, in welcher Luftkanäle angeordnet sind. Diese münden in den Zwischenraum zwischen innerem und äußerem Mantel ein. Der innere Mantel besteht aus Segmenten mit Randleisten in der Längsrichtung des Ofens. Mit diesen greifen sie in Nuten ein, die sich in Längsrippen befinden, welche sich über die ganze Länge des äußeren Mantels erstrecken und auf dessen Auskleidung aufgemauert sind.Circulating 1Vluffel oven with a heatable double jacket The main patent relates to a rotating muffle furnace, which is composed of a double jacket. The outer coat has a Lining in which air ducts are arranged. These flow into the space in between between the inner and outer coat. The inner jacket consists of segments with edge strips in the longitudinal direction of the furnace. With these they grip into grooves a, which are located in longitudinal ribs, which run the entire length of the outer Mantle extend and are bricked on the lining.
Die vorliegende Erfindung betrifft eine Ausgestaltung dieser Vorrichtung derart, daß die die Luftkanäle führende Ausmauerung a des äußeren Mantels aus feuerfestem Material mit niedrigem Wärmeleitungskoeffizienten besteht. Als solches können beispielsweise poröse Massen aus tonerdehaltiger Kieselsäure Verwendung finden. Aus dem gleichen Material bestehen die in diese Auskleidung eingemauerten Längsrippen, welche die Segmente des inneren Mantels aufnehmen.The present invention relates to an embodiment of this device such that the lining a of the outer jacket made of refractory material leading to the air ducts Material with a low coefficient of thermal conductivity. As such, for example Find porous masses of alumina-containing silica use. For the same Material consist of the longitudinal ribs walled into this lining, which the Pick up segments of the inner jacket.
Der innere Mantel besteht gleichfalls aus feuerfestem Material, und zwar solchem von hohem Wärmeleitungskoeffizienten; hierfür kommen beispielsweise Siliciumcarbid, Chromsilicid, Molybdäncarbid oder Gemische dieser Stoffe in Betracht. Der Vorteil dieser Anordnung besteht darin, daß durch den niedrigen Wärmeleitungskoeffizienten der Ausm.auerung des Außenmantels die Abgabe von Wärme aus dem der Beheizung des Ofens dienenden Zwischenraum zwischen den Mänteln nach außen auf ein Mindestmaß herabgedrückt wird, während andererseits der hohe Wärmeleitungskoeffizient des inneren Mantels einen weitgehenden Zutritt der Wärme aus dem gleichen Heizraum in das Innere der Muffel gestattet.The inner jacket is also made of refractory material, and one with a high coefficient of thermal conduction; come for this, for example Silicon carbide, chromium silicide, molybdenum carbide or mixtures of these substances can be considered. The advantage of this arrangement is that the low coefficient of thermal conduction the lining of the outer jacket releases heat from the heating of the Oven serving space between the jackets to the outside to a minimum is depressed, while on the other hand the high coefficient of thermal conductivity of the inner Mantle allows for extensive access of heat from the same boiler room to the interior the grouch allowed.
Bekannt ist eine Ausmauerung von Drehöfen derart, daß Hohlsegmente gebildet werden, deren Wände einerseits an einen äußeren Eisenmantel, andererseits gegen den Innenraum grenzen. Diese bekannten Vorrichtungen mußten nach innen durch Querwände abgestützt werden, die das Beschicken und Reinigen des Ofeninnern sehr erschweren. Die Hohlsegmente wurden dabei aus feuerfestem Material hergestellt, ohne daß jedoch auf dessen Wärmeleitungskoeffizientenwie bei vorliegender Erfindung Rücksicht genommen wäre, so daß einerseits nach außen ein starker Wärmeverlust, andererseits nach innen ein zu schwacher Wärmedurchgang stattfand. Besondere Luftkanäle konnten dabei im Außenmantel nicht vorgesehen werden, so daß eine Verschiebbarkeit der Heizzone in der Längsrichtung, wie sie einen wesentlichen Bestandteil des Hauptpatents ausmacht, nicht möglich war.A lining of rotary kilns is known in such a way that hollow segments are formed, the walls of which on the one hand to an outer iron jacket, on the other hand border against the interior. These known devices had to go inside Transverse walls are supported, the loading and cleaning of the furnace interior very make more difficult. The hollow segments were made of refractory material, without, however, on its coefficient of thermal conductivity as in the present invention Would be taken into account, so that on the one hand a strong heat loss to the outside, on the other hand, there was too little heat transfer to the inside. Special air ducts could not be provided in the outer jacket, so that a displaceability the heating zone in the longitudinal direction, as it is an essential part of the main patent was not possible.
Alle diese Nachteile sind durch die vorliegende Erfindung in Verbindung mit dem Hauptpatent behoben.All of these disadvantages are related to the present invention fixed with the main patent.
Die beiliegende Zeichnung stellt einen Querschnitt durch einen Ofen gemäß der Erfindung dar; a stellt die Ausmauerung des äußeren Mantels, b die Segmente des Innenmantels dar.The accompanying drawing shows a cross-section through a furnace according to the invention; a represents the lining of the outer jacket, b the segments of the inner jacket.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG69686D DE562497C (en) | 1926-03-25 | 1927-03-05 | Circulating muffle furnace with a heatable double jacket formed using segments |
| BE344821A BE344821R (en) | 1926-03-25 | 1927-09-30 | Rotary muffle furnace |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK98401D DE506145C (en) | 1926-03-25 | 1926-03-25 | Circulating muffle furnace with a heated double jacket formed using segments |
| DEG69686D DE562497C (en) | 1926-03-25 | 1927-03-05 | Circulating muffle furnace with a heatable double jacket formed using segments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE562497C true DE562497C (en) | 1932-10-26 |
Family
ID=7134713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG69686D Expired DE562497C (en) | 1926-03-25 | 1927-03-05 | Circulating muffle furnace with a heatable double jacket formed using segments |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE562497C (en) |
-
1927
- 1927-03-05 DE DEG69686D patent/DE562497C/en not_active Expired
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