DE1082415B - Process and system for cooling the agitator shaft and its agitator arms as well as the removal of other excess heat that occurs when roasting sulfur-containing ores in a deck furnace using cooling air - Google Patents

Process and system for cooling the agitator shaft and its agitator arms as well as the removal of other excess heat that occurs when roasting sulfur-containing ores in a deck furnace using cooling air

Info

Publication number
DE1082415B
DE1082415B DESCH25409A DESC025409A DE1082415B DE 1082415 B DE1082415 B DE 1082415B DE SCH25409 A DESCH25409 A DE SCH25409A DE SC025409 A DESC025409 A DE SC025409A DE 1082415 B DE1082415 B DE 1082415B
Authority
DE
Germany
Prior art keywords
cooling
cooling air
agitator shaft
agitator
furnace
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.)
Pending
Application number
DESCH25409A
Other languages
German (de)
Other versions
DE1798947U (en
Inventor
Dipl-Ing Rudolf Hingst
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.)
Schmidtsche Heissdampf GmbH
Original Assignee
Schmidtsche Heissdampf 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 Schmidtsche Heissdampf GmbH filed Critical Schmidtsche Heissdampf GmbH
Priority to DESCH25409A priority Critical patent/DE1082415B/en
Publication of DE1082415B publication Critical patent/DE1082415B/en
Pending 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
    • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
    • F27B3/10—Details, accessories, or equipment peculiar to hearth-type furnaces
    • F27B3/24—Cooling arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/22—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in stationary dishes, trays, pans, or other mainly-open receptacles, with moving stirring devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
    • F26B17/001—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors
    • F26B17/003—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement the material moving down superimposed floors with fixed floors provided with scrapers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/02—Shaft or like vertical or substantially vertical furnaces with two or more shafts or chambers, e.g. multi-storey
    • 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
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Description

Verfahren und Anlage zur Kühlung der Rührwelle und ihrer Rührarme sowie der Abführung von sonstigen bei Rösten von schwefelhaltigen Erzen in einem Etagenofen anfallenden überschüssigen Wärmemengen durch Kühlluft Die Erfindung bezieht sich auf ein Verfahren und eine Anlage zur Kühlung der Rührwelle und ihrer Rührarme sowie der Abführung von sonstigen beim Rösten von schwefelhaltigen Erzen in einem Etagenofen mit nachgeschaltetem abgasbeheiztem Abhitzekessel anfallenden überschüssigen Wärmemengen durch Kühlluft und gleichzeitiger Ausnutzung der hierbei von der Kühlluft aufgenommenen Wärme.Process and system for cooling the agitator shaft and its agitator arms as well as the removal of other sulfur-containing ores during roasting in one Deck oven resulting excess amounts of heat by cooling air The invention relates on a method and a system for cooling the agitator shaft and its agitator arms as well as the removal of other sulfur-containing ores during roasting in one Deck furnace with downstream exhaust gas-heated waste heat boiler Amount of heat through cooling air and simultaneous utilization of the cooling air absorbed heat.

Die die Rührarme tragende Rührwelle eines zum Abrösten von schwefelhaltigen Erzen dienenden Etagenofens durch hindurchgeleitete Luft zu kühlen, ist allgemein bekannt.The agitator shaft carrying the agitator arms is used for roasting sulphurous Cooling ores serving deck furnaces with air passed through is general known.

Auch ist vorgeschlagen worden, die von der Rührwellenkühlluft bei dem Durchströmen durch die Rührwelle aufgenommene Wärme zum Vorwärmen eines flüssigen wärmeaufnehmenden Kühlmittels zu benutzen, das dem Abführen von überschüssigen Wärmemengen aus dem Ofen dient.It has also been suggested that the cooling air from the agitator shafts the heat absorbed by flowing through the agitator shaft to preheat a liquid to use heat-absorbing coolant that dissipates excess heat from the oven.

Diesem Bekannten gegenüber besteht die Erfindung darin, daß die in der Rührwelle und ihren Rührarmen aufgeheizte Kühlluft ihre Wärme an das Speisewasser für den Abhitzekessel abgibt, um abgekühlt anschließend als Kühlmittel für weitere fest in der Wandung des Ofens angeordnete Kühlflächen verwendet zu werden, wobei die hierbei erneut von der Kühlluft vor deren Rückführung in die Rührwelle aufgenommene Wärme zur weiteren Aufwärmung des Speisewassers ausgenutzt wird.In relation to this acquaintance, the invention consists in that the in The cooling air heated up by the agitator shaft and its agitator arms transfers its heat to the feed water for the waste heat boiler gives off to be cooled down afterwards as a coolant for further to be used fixedly arranged in the wall of the furnace cooling surfaces, wherein which is again taken up by the cooling air before it is returned to the agitator shaft Heat is used to further warm up the feed water.

Nach dem erfindungsgemäßen Verfahren wird es möglich, die im Kreislauf geführte Rührwellenkühlluft nicht nur zur Kühlung der Rührwelle und der an ihr befestigten Rührarme zu benutzen, sondern weitere zur Abführung von überschüssiger Wärme aus der Ofenwandung, z. B. in der Höhe der einzelnen Etagen des Ofens angeordnete feste Heizflächen mit der gleichen Kühlluft zu kühlen, wobei die von der Kühlluft in den verschiedenen Heizflächen aufgenommene Wärme in den zwischen den einzelnen Heizflächen jeweils vorgesehenen Speisewasservorwärmern an das zur Speisung des von dem Ofenabgas beaufschlagten Abhitzekessels dienende Speise-,vasser abgegeben wird.According to the method according to the invention, it is possible to use the cycle guided agitator shaft cooling air not only for cooling the agitator shaft and the one attached to it To use agitator arms, but others to dissipate excess heat the furnace wall, e.g. B. arranged fixed at the level of the individual floors of the furnace To cool heating surfaces with the same cooling air, with that of the cooling air in the heat absorbed by the various heating surfaces in the between the individual heating surfaces each provided feed water preheater to the feed of the furnace exhaust gas acted upon waste heat boiler serving feed water is given off.

Diese erfindungsgemäße Maßnahme gestattet vor allem die Kühlung aller Ofenteile durch Luft, also einem Medium, durch das bei etwaigen Schäden an den im Ofeninnern angeordneten Heizflächen kein besonderer Schaden entstehen kann, wie es z. B. bei einem flüssigen Medium als- Kühlmittel der Fall wäre.This measure according to the invention allows, above all, the cooling of all Oven parts through air, i.e. a medium through which, in the event of any damage to the im Heating surfaces arranged inside the furnace cannot cause any particular damage, such as it z. B. with a liquid medium as coolant would be the case.

Aus schadhaft gewordenen Heizflächen in den Ofenraum austretende Kühlluft wird mit den Ofenabgasen über den Abgasstutzen ohne weiteres abgeführt, während dagegen ein aus schadhaft gewordenen Heizflächen in den Ofenraum austretendes flüssiges Kühlmittel zu schwerwiegenden Zerstörungen im Ofeninnern und zum Unbrauchbarwerden des Ofens führen kann.Cooling air escaping into the furnace chamber from defective heating surfaces is easily discharged with the furnace exhaust gases via the exhaust gas nozzle, while on the other hand, a liquid escaping from defective heating surfaces into the furnace chamber Coolant can cause serious damage to the interior of the furnace and render it unusable of the furnace.

Die von der Kühlluft bei ihrem Durchgang durch die verschiedenen Kühlflächen aufgenommene Wärme wird voll von dem Speisewasser für den abgasbeheizten, dem Etagenofen nachgeschalteten Abhitzekessel aufgenommen und in diesen übergeführt zur Steigerung von dessen Wärmebilanz.That of the cooling air as it passes through the various cooling surfaces The heat absorbed is full of the feed water for the exhaust-gas-heated, multiple-hearth furnace downstream waste heat boiler added and transferred to this to increase of its heat balance.

Um eine besonders gute Kühlung insbesondere der an die Rührwelle fest angeschlossenen Rührarme zu erreichen, besteht eine vorteilhafte Ausbildung der Erfindung darin, daß die Rührarme mit von der Kühlluft durchflossenen Kühlflächen versehen sind, deren Ein- und Auslässe für die Rührwellenkühlluft so in die hohle Rührwelle münden, daß sich die Einlässe der Kühlflächen in Strömungsrichtung der Kühlluft vor und die Auslässe entsprechend hinter in der Rührwelle angeordneten Stauscheiben befinden.In order to ensure particularly good cooling, in particular that of the stirrer shaft To achieve connected agitator arms, there is an advantageous embodiment of the Invention is that the agitator arms with cooling surfaces through which the cooling air flows are provided whose inlets and outlets for the agitator shaft cooling air so into the hollow Stirring shaft open so that the inlets of the cooling surfaces in the flow direction of the Cooling air in front of and the outlets correspondingly behind in the agitator shaft There are baffle plates.

Durch diese erfindungsgemäße Maßnahme wird entsprechend der verbesserten Kühlung der Rührarme eine erhöhte Aufheizung der Kühlluft erzielt, was wiederum zu der Möglichkeit einer erhöhten Wärmeausnutzung durch die entsprechende Speisewasservorwärmung und damit Hebung der Gesamtwärmebilanz des nachgeschalteten Abhitzekessels führt.This measure according to the invention is corresponding to the improved Cooling the agitator arms increases the heating of the cooling air, which in turn to the possibility of increased heat utilization through the corresponding feed water preheating and thus increasing the overall heat balance of the downstream waste heat boiler.

Durch @ntsprcch@nden Einbau von Regelorganen in den Kühlluftkreislauf bietet sich eine dem Ofenbetrieb angepaßte einfache Regelungsmöglichkeit für die verschiedenen Kühlflächen.By installing control elements in the cooling air circuit there is a simple control option adapted to the furnace operation for the different cooling surfaces.

Auch besteht die Möglichkeit, durch die Einschaltung von Kaltlufteinlässen an entsprechenden Stellen des Kühlluftkreislaufes in einfacher Weise regelnd das Temperaturbild der Kühlluft zu verändern.There is also the option of switching on cold air inlets at appropriate points of the cooling air circuit in a simple manner regulating that To change the temperature image of the cooling air.

Ein Beispiel der Erfindung ist in vereinfachter Ausführung in der Zeichnung dargestellt.An example of the invention is shown in simplified form in FIG Drawing shown.

Der Etagenofen 1 ist mit einer von dem Kühlmittel durchströmten Rührwelle 2 versehen. Die Rührwelle 2 trägt die Rührarme 3, die über den einzelnen Etagen 4 arbeiten. Die Rührarme 3 sind mit Kühlflächen 5, die z. B. als Kühlschlangen ausgebildet sein können, versehen. Die aus der Rührwelle 2 aufgewärmt austretende Kühlluft wird über eine Leitung 6 und einen als Speisewasservorwärmer ausgebildeten Wärmeaustauscher 7 in der Wandung des Ofens 1, z. B. in den einzelnen Etagen 4 angeordneten Kühlflächen 8 zugeführt, In dem Wärmeaustauscher 7 gibt die Kühlluft ihre Wärme an das mittels der Speisepumpe 9 und die Speiseleitung 10 den Wärmeaustauscher 7 zugeführte Speisewasser ab, so daß die Kühlluft nach dem Verlassen des Wärmeaustauschers 7 in abgekühltem Zustand in die Kühlflächen 8 eintritt. Die fest in der Wandung des Ofens 1 angeordneten Kühlflächen 8 sind vorteilhaft in mehrere nacheinander von der Kühlluft beaufschlagte Kühlflächengruppen unterteilt, z. B. in die Kühlflächengruppen 8, 8' und 8", entsprechend der Anzahl der Etagen 4 des Ofens 1. Zu jedesmaliger Rückkühlung der Kühlluft zwischen den einzelnen Kühlflächengruppen 8, 8' und 8" sind in den Kühlluftfluß weitere Vorwärmer 11 und 12 geschaltet, die nacheinander von dem aus dem Wärmeaustauscher 7 austretenden Speisewasser zu dessen weiterer Aufwärmung durchflossen werden. Nach dem Austreten der Kühlluft aus den Kühlflächen 8" wird diese nochmals aufgeheizte Kühlluft in einem weiteren Wärmeaustauscher 13 durch das auch diesen durchströmende Speisewasser gekühlt, welches anschließend über die Speisewasserleitung 14 dem Abhitzekessel 15 zugeführt wird. Der Abhitzekessel 15 wird durch die Abgase aus dem Etagenofen 1 beheizt. Die Ofenabgase «=erden dem Abhitzekessel 15 über die Abgasleitung 16 zugeleitet. Die aus dem Vorw ärmer 13 gekühlt austretende Kühlluft wird nunmehr über ein Gebläse 17 geleitet, um von diesem aus erneut der Rührwelle2 zugeführt zu werden. An den Rührarmen 3 der Rührwelle 2, die zu ihrer Kühlung mit den Kühlflächen 5 versehen sind, sind die Ein- und Auslässe 18, 19 der Kühlflächen 5 so in die hohle Rührwelle 2 mündend angeordnet, daß sich die Einlässe 18 der Kühlflächen 5 in Strömungsrichtung der Kühlluft vor und die Auslässe 19 entsprechend hinter einer zwischen den Ein- und Auslässen 18, 19 in der Rührwelle 2 angeordneten Stauscheibe 20 befinden. Diese Anordnung bewirkt ein gutes Durchströmen der Kühlluft durch die Kühlflächen 5.The deck oven 1 is provided with an agitator shaft through which the coolant flows 2 provided. The agitator shaft 2 carries the agitator arms 3 above the individual floors 4 work. The agitator arms 3 are provided with cooling surfaces 5 which, for. B. designed as cooling coils can be provided. The warmed cooling air exiting the agitator shaft 2 is via a line 6 and a heat exchanger designed as a feedwater preheater 7 in the wall of the furnace 1, for. B. in the individual floors 4 arranged cooling surfaces 8 supplied, In the heat exchanger 7, the cooling air gives its heat to the means the feed pump 9 and the feed line 10 the heat exchanger 7 fed feed water from, so that the cooling air after leaving the heat exchanger 7 in cooled State in the cooling surfaces 8 occurs. The fixed in the wall of the furnace 1 Cooling surfaces 8 are advantageously in several successively acted upon by the cooling air Subdivided cooling surface groups, e.g. B. in the cooling surface groups 8, 8 'and 8 ", accordingly the number of floors 4 of the furnace 1. Each time the cooling air is recooled between the individual cooling surface groups 8, 8 'and 8 "are further preheaters in the cooling air flow 11 and 12 switched, one after the other from the exiting from the heat exchanger 7 Feed water to be further heated through. After exiting the cooling air from the cooling surfaces 8 ″ is this again heated cooling air in a further heat exchanger 13 through the feed water also flowing through it cooled, which then via the feed water line 14 to the waste heat boiler 15 is supplied. The waste heat boiler 15 is caused by the exhaust gases from the multiple-hearth furnace 1 heated. The furnace exhaust gases are grounded to the waste heat boiler 15 via the exhaust pipe 16 forwarded. The cooling air exiting from the preheater 13 is now cooled passed through a fan 17 in order to be fed from this again to the agitator shaft 2 to become. On the agitator arms 3 of the agitator shaft 2, which is used to cool it with the cooling surfaces 5 are provided, the inlets and outlets 18, 19 of the cooling surfaces 5 are so in the hollow Agitator shaft 2 arranged opening that the inlets 18 of the cooling surfaces 5 in the direction of flow the cooling air in front of and the outlets 19 correspondingly behind a between the inlets and outlets 18, 19 are located in the baffle plate 20 arranged in the agitator shaft 2. These The arrangement causes the cooling air to flow well through the cooling surfaces 5.

Claims (3)

PATENTANSPRÜCHE: 1. Verfahren zur Kühlung der Rührwelle und ihrer Rührarme sowie die Abführung von sonstigen beim Rösten von schwefelhaltigen Erzen in einem Etagenofen mit nachgeschaltetem abgasbeheiztem Abhitzekessel anfallenden überschüssigen Wärmemengen durch Kühlluft und gleichzeitiger Ausnutzung der hierbei von der Kühlluft äufgenommenen Wärme, dadurch gekennzeichnet, daß die in der Rührwelle (2) und ihren Rührarmen (7) aufgeheizte Kühlluft ihre Wärme an das Speisewasser für den Abhitzekessel (15) abgibt, um abgekühlt anschließend als Kühlmittel für weitere fest in der; Wandung des Ofens (1) angeordnete Kühlflächen (8, 8' und 8") verwendet zu werden, wobei die hierbei erneut von der Kühlluft vor deren Rückführung in die Rührwelle (2) aufgenommene Wärme zur weiteren Aufwärmung des Speisewassers ausgenutzt wird. PATENT CLAIMS: 1. Method for cooling the agitator shaft and its Mixing arms and the removal of other sulfur-containing ores when roasting incurred in a multiple-hearth furnace with a downstream exhaust-gas-heated waste heat boiler excess amounts of heat through cooling air and simultaneous use of this heat absorbed by the cooling air, characterized in that the in the agitator shaft (2) and their stirring arms (7), heated cooling air transfers its heat to the feed water for the waste heat boiler (15) releases to be cooled then as a coolant for more firmly in the; Wall of the furnace (1) arranged cooling surfaces (8, 8 'and 8 ") to be used, this being done again by the cooling air before it is returned Heat absorbed in the agitator shaft (2) for further heating of the feed water is exploited. 2. Anlage zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß die fest in der Ofenwandung angeordneten Kühlflächen in einzelne, nacheinander von der Kühlluft beaufschlagte Kühlflächengruppen (8, 8' und 8") unterteilt sind, denen zu jedesmaliger Rückkühlung der Kühlluft zwischen den einzelnen Kühlflächengruppen (8, 8' und 8") Vorwärmen (11, 12) zugeordnet sind, die von dem vorzuwärmenden Speisewasser nacheinander durchflossen werden. 2. Plant for performing the method according to claim 1, characterized characterized in that the fixed cooling surfaces in the furnace wall are divided into individual, successively subdivided cooling surface groups (8, 8 'and 8 ") acted upon by the cooling air are to which each time the cooling air is recooled between the individual cooling surface groups (8, 8 'and 8 ") preheating (11, 12) are assigned that of the feed water to be preheated are flowed through one after the other. 3. Anlage nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß die Rührarme (3) der Rührwelle (2) mit von der Kühlluft durchflossenen Kühlflächen (5) versehen sind, deren Ein-und Auslässe für die Rührwellenkühlluft so in die hohle Rührwelle (2) münden, daß sich die Einlässe (18) der Kühlflächen (5) in Strömungsrichtung der Kühlluft vor und die Auslässe (19) entsprechend hinter in der Rührwelle (2) angeordneten Stauscheiben (20) befinden.3. Plant according to claims 1 and 2, characterized characterized in that the agitator arms (3) of the agitator shaft (2) are also traversed by the cooling air Cooling surfaces (5) are provided, their inlets and outlets for the agitator shaft cooling air Open into the hollow stirrer shaft (2) in such a way that the inlets (18) of the cooling surfaces are (5) in the direction of flow of the cooling air in front of and the outlets (19) correspondingly behind in the agitator shaft (2) arranged baffle plates (20) are.
DESCH25409A 1959-01-27 1959-01-27 Process and system for cooling the agitator shaft and its agitator arms as well as the removal of other excess heat that occurs when roasting sulfur-containing ores in a deck furnace using cooling air Pending DE1082415B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH25409A DE1082415B (en) 1959-01-27 1959-01-27 Process and system for cooling the agitator shaft and its agitator arms as well as the removal of other excess heat that occurs when roasting sulfur-containing ores in a deck furnace using cooling air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH25409A DE1082415B (en) 1959-01-27 1959-01-27 Process and system for cooling the agitator shaft and its agitator arms as well as the removal of other excess heat that occurs when roasting sulfur-containing ores in a deck furnace using cooling air

Publications (1)

Publication Number Publication Date
DE1082415B true DE1082415B (en) 1960-05-25

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DESCH25409A Pending DE1082415B (en) 1959-01-27 1959-01-27 Process and system for cooling the agitator shaft and its agitator arms as well as the removal of other excess heat that occurs when roasting sulfur-containing ores in a deck furnace using cooling air

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DE (1) DE1082415B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109028903A (en) * 2018-07-16 2018-12-18 文民杰 A kind of energy-saving and environment-friendly Cirulation type grain drying device
CN109341288A (en) * 2018-09-25 2019-02-15 广州博昊信息科技有限公司 Weaving drying unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109028903A (en) * 2018-07-16 2018-12-18 文民杰 A kind of energy-saving and environment-friendly Cirulation type grain drying device
CN109341288A (en) * 2018-09-25 2019-02-15 广州博昊信息科技有限公司 Weaving drying unit

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