EP0170304A2 - Clinker cooler with dedusting device in a process for the production of cement - Google Patents

Clinker cooler with dedusting device in a process for the production of cement Download PDF

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Publication number
EP0170304A2
EP0170304A2 EP85200949A EP85200949A EP0170304A2 EP 0170304 A2 EP0170304 A2 EP 0170304A2 EP 85200949 A EP85200949 A EP 85200949A EP 85200949 A EP85200949 A EP 85200949A EP 0170304 A2 EP0170304 A2 EP 0170304A2
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EP
European Patent Office
Prior art keywords
dedusting device
clinker
clinker cooler
dedusting
cooling air
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.)
Granted
Application number
EP85200949A
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German (de)
French (fr)
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EP0170304A3 (en
EP0170304B1 (en
Inventor
Werner Maus
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GEA Group AG
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Metallgesellschaft AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
    • F27D15/02—Cooling
    • F27D15/0206—Cooling with means to convey the charge
    • F27D15/0266—Cooling with means to convey the charge on an endless belt

Definitions

  • the invention relates to a clinker cooler with a dedusting device in a method for producing cement, the hot clinker falling at temperatures of 1150 to 1300 ° C. on an air-permeable conveyor belt and being cooled with cooling air conducted through the TransportLand, the cooling air then passed through a dedusting device and up to a residual dust content of about 30 to 100 mg / Nm 3 is dedusted and a solid transport device receiving the cooled clinker is arranged under the clinker cooler.
  • the clinker cooler is a known part of a plant for cement production, and the dedusting device for the cooling air coming from the clinker cooler is also known. Since the dedusting device has a large volume and weight due to the necessary performance, it is customary in known systems to place the dedusting device next to the clinker cooler. This arrangement of clinker cooler and dedusting device leads to considerable space requirements, to a relatively long cooling air line from the clinker cooler to the dedusting device and for the latter to a separate dust transport device.
  • the invention has for its object to provide a combination of clinker cooler and dedusting device, the space requirement is small and which reduces the system and operating costs. According to the invention, this is done in that the dedusting device is arranged above the clinker cooler and the discharge line or discharge lines for dust separated in the dedusting device opens or opens directly above the solids transport device.
  • the arrangement according to the invention makes it possible to supply the dust-containing cooling air from the clinker cooler with a short line to the dedusting device, and at the same time the solids transport device which necessarily belongs to the clinker cooler can also transport the dust accumulating in the dedusting device. Another advantage is the small space requirement of the system combination.
  • the dedusting device expediently contains at least one cyclone with a downstream fine dedusting device.
  • the fine dedusting device there are several options for the fine dedusting device, in particular the use of a granulate filter, but the various types of fabric filters are also suitable.
  • Granulate filters in which the dust is removed from the air passed through the layer by a layer of solid granulate, are known per se and e.g. described in German Patent 27 19 544 and German Offenlegungsschrift 29 51 877. These filters have the advantage that, on the one hand, they ensure good dust separation and, on the other hand, the dust-laden granulate can be cleaned and reused continuously and easily.
  • An embodiment of the invention is shown in the drawing. It shows a schematic representation of a longitudinal section through the clinker cooler with associated dedusting device.
  • the hot clinker comes with temperatures of 1150 to 1300 ° C, for example, from a rotary tube, not shown, and passes through the inlet 1 of the clinker cooler 2 to an inclined conveyor belt 3.
  • the conveyor belt 3 consists in a known manner of air-permeable metal members.
  • Cooling air is first fed from the blower 4 to an invisible manifold, from which the cooling air enters the clinker cooler below the conveyor belt 3 through numerous openings 5.
  • the cooling air flows upwards through the conveyor belt 3 and the clinker layer thereon, which is not shown.
  • Dust-containing cooling air leaves the clinker cooler through the exhaust pipe 6.
  • Cooled clinker with a temperature of approximately 70-120 ° C. falls at the lower end of the conveyor belt 3 in the direction of arrow 7 through an outlet 8 onto an endless transport device 9.
  • This transport device 9 the is only partially shown in the drawing, for example in a known manner be designed as a drag chain. Solids that fall down in the clinker cooler 2 also reach the transport device 9 through a plurality of discharge lines 12.
  • the solid-containing cooling air in the exhaust pipe 6 is fed to a multi-part dedusting device, which is shown only partially and in simplified form in the drawing.
  • the dedusting device can e.g. consist of several parallel dedusting elements 13, of which the drawing shows an element.
  • This element consists of a cyclone 14 with a downstream granulate filter 15.
  • the dust-containing cooling air is first roughly dedusted in the cyclone 14, the air flowing helically around a tube 16 and reaching the granulate filter 15 through the lower end of the tube.
  • the flow path of the air out of the tube 16 into the granulate filter 15 is indicated by the arrows 17a and 17b.
  • the granulate filter 15 has an essentially cylindrical granulate layer 18, which is located between air-permeable walls.
  • the dust-containing air flows through the granulate layer 18 from the outside inwards, as is indicated by the arrows 19a and 19b.
  • the fine dust fraction is retained in the granulate layer and the exhaust air cleaned to a residual dust content of 30 to 100 mg / Nm 3 is led through line 22 to the common exhaust air chimney.
  • the filter is separated from the line 22 in a manner not shown, and the granules are conveyed pneumatically through a central line 20 from bottom to top to a collecting container 21 and through which purge air flows against the normal gas direction, the lighter traffic jam from the heavier granules.
  • the conveying gas used for the line 20, usually air, is fed into the exhaust pipe 6.
  • the dust falls through the pipe 16 into the solid line 26.
  • Dust-free granulate collects in the container 21 and flows back to the granule layer 18 via several downpipes 23. Dust-free air leaves the granule filter in the clean gas line 22, which usually leads to a collecting line with a fan, which is not shown in the drawing for simplification.
  • the solids deposited in the cyclone 14 and during the cleaning process of the granulate layer 18 fall into a line 26 and pass through this line to the transport device 9.
  • the line 26 runs outside the clinker cooler 2, which is indicated by the line line shown in broken lines. If several dedusting elements 13 are connected in parallel, as is customary, all solid lines 26 of these elements discharge their solids to the transport device 9, so that an additional transport device is unnecessary.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Abstract

The hot clinker falls at temperatures of 1150 to 1300 DEG C onto an air-permeable conveyor belt and is cooled with cooling air. The cooling air is subsequently conducted through a dedusting device, in which it is dedusted to a residual dust content of approximately 30 to 100 mg/Nm<3>. Under the clinker cooler, there is arranged a solids transport device which receives the cooled clinker. The dedusting device is situated approximately vertically above the clinker cooler and the offtakes of the dedusting device for the separated dust guide the latter directly onto the solids transport device for the cooled clinker. Advantageously, the dedusting device contains at least one cyclone with a downstream fine dedusting device. The fine dedusting device can be a granulate filter or a fibrous filter. <IMAGE>

Description

Die Erfindung betrifft einen Klinkerkühler mit Entstaubungsvorrichtung in einem Verfahren zur Zementherstellung, wobei der heiße Klinker mit Temperaturen von 1150 bis 1300 °C auf ein luftdurchlässiges Transportband fällt und mit durch das TransportLand geleiteter Kühlluft gekühlt wird, die Kühlluft anschließend durch eine Entstaubungsvorrichtung geführt und bis auf einen restlichen Staubgehalt von etwa 30 bis 100 mg/Nm3 entstaubt wird und unter dem Klinkerkühler eine den gekühlten Klinker aufnehmende Feststofftransportvorrichtung angeordnet ist.The invention relates to a clinker cooler with a dedusting device in a method for producing cement, the hot clinker falling at temperatures of 1150 to 1300 ° C. on an air-permeable conveyor belt and being cooled with cooling air conducted through the TransportLand, the cooling air then passed through a dedusting device and up to a residual dust content of about 30 to 100 mg / Nm 3 is dedusted and a solid transport device receiving the cooled clinker is arranged under the clinker cooler.

Der Klinkerkühler ist ein bekannter Teil einer Anlage zur Zementherstellung, ebenso ist die Entstaubungsvorrichtung für die aus dem Klinkerkühler kommende Kühlluft bekannt. Da die Entstaubungsvorrichtung aufgrund der nötigen Leistungsfähigkeit ein großes Volumen und großes Gewicht besitzt, ist es bei bekannten Anlagen üblich, die Entstaubungsvorrichtung neben den Klinkerkühler zu stellen. Diese Anordnung von Klinkerkühler und Entstaubungsvorrichtung führt zu erheblichem Platzbedarf, zu einer relativ langen Kühlluftleitung vom Klinkerkühler zur Entstaubungsvorrichtung und für Letztere zu einer separaten Staubtransportvorrichtung. Der Erfindung liegt die Aufgabe zugrunde, eine Kombination von Klinkerkühler und Entstaubungsvorrichtung zu schaffen, deren Platzbedarf gering ist und welche die Anlagen- und Betriebskosten verringert. Erfindungsgemäß geschieht dies dadurch, daß die Entstaubungsvorrichtung über dem Klinkerkühler angeordnet ist und die Ableitung oder Ableitungen für in der Entstaubungsvorrichtung abgeschiedenen Staub unmittelbar über der Feststofftransportvorrichtung mündet bzw. münden.The clinker cooler is a known part of a plant for cement production, and the dedusting device for the cooling air coming from the clinker cooler is also known. Since the dedusting device has a large volume and weight due to the necessary performance, it is customary in known systems to place the dedusting device next to the clinker cooler. This arrangement of clinker cooler and dedusting device leads to considerable space requirements, to a relatively long cooling air line from the clinker cooler to the dedusting device and for the latter to a separate dust transport device. The invention has for its object to provide a combination of clinker cooler and dedusting device, the space requirement is small and which reduces the system and operating costs. According to the invention, this is done in that the dedusting device is arranged above the clinker cooler and the discharge line or discharge lines for dust separated in the dedusting device opens or opens directly above the solids transport device.

Die erfindungsgemäße Anordnung macht es möglich, die staubhaltige Kühlluft aus dem Klinkerkühler mit einer kurzen Leitung der Entstaubungsvorrichtung zuzuführen, und gleichzeitig kann die zum Klinkerkühler notwendigerweise gehörende Feststofftransportvorrichtung auch den in der Entstaubungsvorrichtung anfallenden Staub transportieren. Ein weiterer Vorteil ist der geringe Platzbedarf der Anlagenkombination.The arrangement according to the invention makes it possible to supply the dust-containing cooling air from the clinker cooler with a short line to the dedusting device, and at the same time the solids transport device which necessarily belongs to the clinker cooler can also transport the dust accumulating in the dedusting device. Another advantage is the small space requirement of the system combination.

Zweckmäßigerweise enthält die Entstaubungsvorrichtung mindestens einen Zyklon mit nachgeschalteter Feinentstaubungsvorrichtung. Für die Feinentstaubungsvorrichtung gibt es mehrere Möglichkeiten, insbesondere die Verwendung eines Granulatfilters, doch kommen auch die verschiedenartigen Gewebefilter in Frage. Granulatfilter, bei denen der Staub durch eine Schicht von Feststoffgranulat aus der durch die Schicht hindurchgeleiteten Luft entfernt wird, sind an sich bekannt und z.B. im deutschen Patent 27 19 544 und der deutschen Offenlegungsschrift 29 51 877 beschrieben. Diese Filter haben den Vorteil, daß sie einerseits eine gute Staubabscheidung gewährleisten und andererseits die Abreinigung und Wiederverwendung des staubbeladenen Granulats kontinuierlich und auf einfache Weise erfolgen kann.The dedusting device expediently contains at least one cyclone with a downstream fine dedusting device. There are several options for the fine dedusting device, in particular the use of a granulate filter, but the various types of fabric filters are also suitable. Granulate filters, in which the dust is removed from the air passed through the layer by a layer of solid granulate, are known per se and e.g. described in German Patent 27 19 544 and German Offenlegungsschrift 29 51 877. These filters have the advantage that, on the one hand, they ensure good dust separation and, on the other hand, the dust-laden granulate can be cleaned and reused continuously and easily.

Eine Ausgestaltung der Erfindung ist in der Zeichnung dargestellt. Sie zeigt in schematischer Darstellung einen Längsschnitt durch den Klinkerkühler mit zugehöriger Entstaubungsvorrichtung. Der heiße Klinker kommt mit Temperaturen von 1150 bis 1300 °C z.B. aus einem nicht dargestellten Drehrohr und gelangt durch den Zulauf 1 des Klinkerkühlers 2 auf ein schräges Transportband 3. Das Transportband 3 besteht in bekannter Weise aus luftdurchlässigen Metallgliedern.An embodiment of the invention is shown in the drawing. It shows a schematic representation of a longitudinal section through the clinker cooler with associated dedusting device. The hot clinker comes with temperatures of 1150 to 1300 ° C, for example, from a rotary tube, not shown, and passes through the inlet 1 of the clinker cooler 2 to an inclined conveyor belt 3. The conveyor belt 3 consists in a known manner of air-permeable metal members.

Vom Gebläse 4 wird Kühlluft zunächst einer nicht sichtbaren Sammelleitung zugeführt, von der die Kühlluft durch zahlreiche Öffnungen 5 in den Klinkerkühler unterhalb des Transportbandes 3 eintritt. Die Kühlluft strömt nach oben durch das Transportband 3 und die darauf befindliche Klinkerschicht, die nicht dargestellt ist. Staubhaltige Kühlluft verläßt den Klinkerkühler durch das Abgasrohr 6. Gekühlter Klinker mit einer_Temperatur etwa im Bereich von 70 - 120 °C fällt am unteren Ende des Transportbandes 3 in Richtung des Pfeils 7 durch einen Ablauf 8 auf eine endlose Transportvorrichtung 9. Diese Transportvorrichtung 9, die in der Zeichnung nur teilweise dargestellt ist, kann in bekannter Weise z.B. als Schleppkette ausgebildet sein. Feststoffe, die im Klinkerkühler 2 nach unten fallen, gelangen uurch mehrere Ableitungen 12 ebenfalls zur Transportvorrichtung 9.Cooling air is first fed from the blower 4 to an invisible manifold, from which the cooling air enters the clinker cooler below the conveyor belt 3 through numerous openings 5. The cooling air flows upwards through the conveyor belt 3 and the clinker layer thereon, which is not shown. Dust-containing cooling air leaves the clinker cooler through the exhaust pipe 6. Cooled clinker with a temperature of approximately 70-120 ° C. falls at the lower end of the conveyor belt 3 in the direction of arrow 7 through an outlet 8 onto an endless transport device 9. This transport device 9, the is only partially shown in the drawing, for example in a known manner be designed as a drag chain. Solids that fall down in the clinker cooler 2 also reach the transport device 9 through a plurality of discharge lines 12.

Die feststoffhaltige Kühlluft im Abgasrohr 6 wird einer mehrteiligen Entstaubungsvorrichtung zugeführt, die in der Zeichnung nur teilweise und vereinfacht dargestellt ist. Die Entstaubungsvorrichtung kann z.B. aus mehreren parallelgeschalteten Entstaubungselementen 13 bestehen, von denen die Zeichnung ein Element zeigt. Dieses Element besteht aus einem Zyklon 14 mit nachgeschaltetem Granulatfilter 15. Die staubhaltige Kühlluft wird zunächst im Zyklon 14 grob entstaubt, wobei die Luft ein Rohr 16 wendelförmig umströmt und durch das untere Ende des Rohres nach oben zum Granulatfilter 15 gelangt. Der Strömungsweg der Luft aus dem Rohr 16 heraus in das Granulatfilter 15 hinein ist durch die Pfeile 17a und 17b angedeutet.The solid-containing cooling air in the exhaust pipe 6 is fed to a multi-part dedusting device, which is shown only partially and in simplified form in the drawing. The dedusting device can e.g. consist of several parallel dedusting elements 13, of which the drawing shows an element. This element consists of a cyclone 14 with a downstream granulate filter 15. The dust-containing cooling air is first roughly dedusted in the cyclone 14, the air flowing helically around a tube 16 and reaching the granulate filter 15 through the lower end of the tube. The flow path of the air out of the tube 16 into the granulate filter 15 is indicated by the arrows 17a and 17b.

Das Granulatfilter 15 weist eine im wesentlichen zylindrische Granulatschicht 18 auf, die sich zwischen luftdurchlässigen Wänden befindet. Die Granulatschicht 18 wird von außen nach innen von der staubhaltigen Luft durchströmt, wie das durch die Pfeile 19a und 19b angedeutet ist. Der Feinstaubanteil wird in der Granulatschicht zurückgehalten und die auf einen Reststaubgehalt von 30 bis 100 mg/Nm3 gereinigte Abluft durch die Leitung 22 zum gemeinsamen Abluftkamin geführt. Zur Abreinigung des mit Staub beladenen Granulats wird das Filter in nicht dargestellter Weise von der Leitung 22 getrennt, und das Granulat wird pneumatisch durch eine zentrale Leitung 20 von unten nach oben zu einem Sammelbehälter 21 gefördert und entgegen der normalen Gasrichtung von Spülluft durchströmt, wobei der leichtere StauL vom schwereren Granulat ausgesichtet wird. Das für die Leitung 20 verwendete Fördergas, üblicherweise Luft, wird in das Abgasrohr 6 geführt. Der Staub fällt durch das Rohr 16 in die Feststoffleitung 26. Entstaubtes Granulat sammelt sich im Behälter 21 und fließt über mehrere Falleitungen 23 zurück zur Granulatschicht 18. Entstaubte Luft verläßt das Granulatfilter in der Reingasleitung 22, die üblicherweise zu einer Sammelleitung mit Gebläse führt, was in der Zeichnung jedoch zur Vereinfachung nicht dargestellt ist.The granulate filter 15 has an essentially cylindrical granulate layer 18, which is located between air-permeable walls. The dust-containing air flows through the granulate layer 18 from the outside inwards, as is indicated by the arrows 19a and 19b. The fine dust fraction is retained in the granulate layer and the exhaust air cleaned to a residual dust content of 30 to 100 mg / Nm 3 is led through line 22 to the common exhaust air chimney. To clean the dust-laden granules, the filter is separated from the line 22 in a manner not shown, and the granules are conveyed pneumatically through a central line 20 from bottom to top to a collecting container 21 and through which purge air flows against the normal gas direction, the lighter traffic jam from the heavier granules. The conveying gas used for the line 20, usually air, is fed into the exhaust pipe 6. The dust falls through the pipe 16 into the solid line 26. Dust-free granulate collects in the container 21 and flows back to the granule layer 18 via several downpipes 23. Dust-free air leaves the granule filter in the clean gas line 22, which usually leads to a collecting line with a fan, which is not shown in the drawing for simplification.

Die im Zyklon 14 und während des Reinigungsvorgangs der Granulatschicht 18 abgeschiedenen Feststoffe fallen in eine Leitung 26 und gelangen durch diese Leitung zur Transportvorrichtung 9. Die Leitung 26 verläuft außen am Klinkerkühler 2 vorbei, was durch die gestrichelt gezeichnete Leitungsführung angedeutet ist. Wenn mehrere Entstaubungselemente 13 parallelgeschaltet sind, wie das üblich ist, geben alle Feststoffleitungen 26 dieser Elemente ihre Feststoffe an die Transportvorrichtung 9 ab, so daß eine zusätzliche Transportvorrichtung unnötig wird.The solids deposited in the cyclone 14 and during the cleaning process of the granulate layer 18 fall into a line 26 and pass through this line to the transport device 9. The line 26 runs outside the clinker cooler 2, which is indicated by the line line shown in broken lines. If several dedusting elements 13 are connected in parallel, as is customary, all solid lines 26 of these elements discharge their solids to the transport device 9, so that an additional transport device is unnecessary.

Claims (4)

1. Klinkerkühler mit Entstaubungsvorrichtung in einem Verfahren zur Zementherstellung, wobei der heiße Klinker mit Temperaturen von 1150 bis 1300 °C auf ein luftdurchlässiges Transportband fällt und mit durch das Transportband geleiteter Kühlluft gekühlt wird, die Kühlluft anschließend durch eine Entstaubungsvorrichtung geführt und bis auf einen restlichen Staubgehalt von etwa 30 bis 100 mg/Nm3 entstaubt wird und unter dem Klinkerkühler eine den gekühlten Klinker aufnehmende Feststofftransportvorrichtung angeordnet ist, dadurch gekennzeichnet, daß die Entstaubungsvorrichtung über dem Klinkerkühler angeordnet ist und die Ableitung oder Ableitungen für in der Entstaubungsvorrichtung abgeschieaenen Staub unmittelbar über der Feststofftransportvorrichtung mündet bzw. münden.1.Clinker cooler with dedusting device in a process for cement production, the hot clinker falling at temperatures of 1150 to 1300 ° C on an air-permeable conveyor belt and being cooled with cooling air passed through the conveyor belt, the cooling air is then passed through a dedusting device and apart from the rest Dust content of about 30 to 100 mg / Nm 3 is dedusted and a solid transport device receiving the cooled clinker is arranged under the clinker cooler, characterized in that the dedusting device is arranged above the clinker cooler and the discharge line or discharge lines for dust shed in the dedusting device is located directly above the Solids transport device opens or open. 2. Vorrichtung nach Anspruch 1, dadurch gekennezeichnet, daß die Entstaubungsvorrichtung mindestens einen Zyklon mit nachgeschalteter Feinentstaubungsvorrichtung enthält.2. Device according to claim 1, characterized in that the dedusting device contains at least one cyclone with a downstream fine dedusting device. 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Feinentstaubungsvorrichtung als Granulatfilter ausgebildet ist.3. Apparatus according to claim 2, characterized in that the fine dedusting device is designed as a granulate filter. 4. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Feinentstaubungsvorrichtung als Gewebefilter ausgebildet ist.4. The device according to claim 2, characterized in that the fine dedusting device is designed as a fabric filter.
EP19850200949 1984-06-30 1985-06-15 Clinker cooler with dedusting device in a process for the production of cement Expired - Lifetime EP0170304B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3424170 1984-06-30
DE19843424170 DE3424170A1 (en) 1984-06-30 1984-06-30 CLINKER COOLER WITH DEDUSTING DEVICE IN A METHOD FOR THE PRODUCTION OF CEMENT

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EP0170304A2 true EP0170304A2 (en) 1986-02-05
EP0170304A3 EP0170304A3 (en) 1989-10-11
EP0170304B1 EP0170304B1 (en) 1993-12-22

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JP (1) JPH0625006B2 (en)
DE (2) DE3424170A1 (en)
ES (1) ES8703392A1 (en)

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CN112209645B (en) * 2020-10-20 2022-06-24 杭州山亚南方水泥有限公司 Clinker reducing and coal burning dilution device for cement production

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DE1209040B (en) * 1964-06-19 1966-01-13 Kloeckner Humboldt Deutz Ag Process for obtaining an essentially alkali-free furnace discharge when burning minerals containing poorly volatile alkalis
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Also Published As

Publication number Publication date
EP0170304A3 (en) 1989-10-11
ES544643A0 (en) 1987-02-16
DE3587692D1 (en) 1994-02-03
JPH0625006B2 (en) 1994-04-06
DE3424170C2 (en) 1992-10-29
DE3424170A1 (en) 1986-02-27
ES8703392A1 (en) 1987-02-16
EP0170304B1 (en) 1993-12-22
JPS6117455A (en) 1986-01-25

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