EP1350571A1 - Cyclone separator with segmented immersion pipe - Google Patents

Cyclone separator with segmented immersion pipe Download PDF

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Publication number
EP1350571A1
EP1350571A1 EP03007197A EP03007197A EP1350571A1 EP 1350571 A1 EP1350571 A1 EP 1350571A1 EP 03007197 A EP03007197 A EP 03007197A EP 03007197 A EP03007197 A EP 03007197A EP 1350571 A1 EP1350571 A1 EP 1350571A1
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EP
European Patent Office
Prior art keywords
dip tube
cyclone separator
cyclone
tube segments
segments
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Granted
Application number
EP03007197A
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German (de)
French (fr)
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EP1350571B1 (en
Inventor
Horst Schilling
Ralf Filges
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KHD Humboldt Wedag AG
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KHD Humboldt Wedag AG
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Publication of EP1350571A1 publication Critical patent/EP1350571A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
    • B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow

Definitions

  • the invention relates to a cyclone separator, in particular for direct heat transfer from the hot exhaust gases of a rotary kiln cyclone suspended gas heat exchanger system for production of Cement clinker made of raw cement flour, with tangential feed of Gas and raw meal, good discharge in the lower cyclone area and with from protruding into the cyclone separator at the top, on the cyclone ceiling detachably suspended by means of bolts and to a central Immersion tube for the gas discharge of assemble immersion tube segments.
  • the hook suspension secures the dip tube segments against it, down to fall into the cyclone if the radially arranged ones Bolts, by means of which the tops of the top row the dip tube segments are stretched against the ceiling while of the operation of the cyclone separator due to wear.
  • it is technically complex to manufacture smooth dip tube segment sheets through forming technology and / or welding technology to attach hook-shaped or angular structures.
  • metal dip tube segments set as dip tube segments if they are not thicker than z. B. should be about 15 mm, only up to a length of about 120 cm can be cast free of inhomogeneities.
  • the invention has for its object for cement clinker manufacturing plants with cyclone levitation gas heat exchanger system Cyclone separator, especially hot gas cyclone with segmented To create dip tube, its dip tube segments securely attach have a long service life and yet are easy to manufacture and are mountable.
  • Characteristic of the cyclone separator according to the invention segmented dip tube is that the dip tube segments are smooth, thus have neither cast-on nor welded hook parts etc. so that the dip tube segments from an easy to manufacture comparatively thin-walled metal sheet can exist and don't have to be cast.
  • smooth dip tube segment is one in cross section an angle rail each having a U-profile detachably connected, whose legs the top and / or bottom of the dip tube segments reach around like a hook.
  • the dip tube segments consist of simple heat-resistant steel sheet, can put on the separate angle rails made of cast steel consist.
  • the separate angled rail-shaped cast hooks on the top the uppermost row of Dip tube segments are arranged by means of radial bolts on the inner surfaces of the top of the dip tube segment curious; excited. With the separate angled rail-shaped cast hooks succeeds in a simple and safe suspension of the circumference of the dip tube distributed dip tube segments.
  • the dip tube segments be formed as a composite body by at least the Dip tube segment outside, on which the in the cyclone separator inflowing abrasive hot gas / solid suspension flows in, is coated in particular in such a way that on the metal sheet Webs of a metallic grid-shaped grate are arranged, whose openings are filled with a heat-resistant ceramic mass are.
  • Figure 1 shows a section of a cyclone separator of the cyclone ceiling 10 provided with a refractory lining 11 on the inside is.
  • Hot gas and raw cement powder flow tangentially into the cyclone a plant for the production of cement clinker.
  • a dip tube protrudes centrally from above into the cyclone separator into it, which is composed of a large number of segments and is suspended from the cyclone ceiling 10.
  • Figure 2 z. B. the two dip tube segments 12 and 13 arranged side by side see, on which in turn the further dip tube segments 14 and 15 are appended. From the cyclone ceiling 10 goes centrally at the top the gas exhaust line equipped with a refractory lining 16 17 from.
  • dip tube segments 12, 13, 14, 15 etc. are because they all are smooth, interchangeable.
  • dip tube segments 12 With the top of the itself smooth, made of simple heat-resistant Metal sheet existing dip tube segments 12 is one in Cross section each have a U-shaped angle rail 18 detachable connected, the legs of which the top of the dip tube segments 12th etc. grasp like a hook.
  • the angle rail 18 is in each case from a separate casting.
  • the inner legs of the cast hooks 18 also encompass the top of each of a web 19 which extends from the inside of spacers 20 extends upwards.
  • the spacers 20 are distributed around the circumference of the dip tube on the cyclone ceiling 10 supported, attached to the gas line 17 and about arranged radially to the dip tube center. In the spacers 20 an approximately radially arranged screw bolt 21 is arranged, with which the dip tube segment 12 etc. with the insulated Gas discharge line 17 is releasably connected.
  • the separate angular rail-shaped cast hooks 18 on the Top of the uppermost row around the dip tube circumference Dip tube segments 12, 13 etc. are arranged by means of Bolt 21 on the inner surfaces of the upper tube segment curious; excited.
  • the head 24 of the bolts 21, the the inside of the dip tube in a corresponding recess of the Dip tube segments 12, 13, etc. and arranged in the spacer 20 is covered by a cover 23, which is the detachable Attachment of the dip tube segments against the high thermochemical Stress protects.
  • the lid 23 can according to his Assembly by a tack weld on the cast hook part 18 etc. be secured.
  • the thickened head 24 of the bolts 21 is in recessed in a cap 25, by means of which the Angle rail-shaped cast hooks 18 on the smooth dip tube segment 12 and this on the inside of the spacers 20 and whose inner web 19 can be tensioned.
  • the bolts 21 point on radially outer end nuts 26, by means of which they over Springs 27 are supported on the outer circumference of the spacers 20.
  • the dip tube segments 12, 13 etc. can be formed as a composite body by at least the dip tube segment outside, on which the in the Cyclonic separator inflowing abrasive hot gas / solid suspension inflows, is coated, especially in such a way that on the metal sheet 12 webs of a metallic grid-shaped grate are arranged, the openings with a heat-resistant ceramic mass 30 are filled out.
  • the surface can protect them the ceramic mass 30 still has a coating with the lowest possible porosity have, in particular a glaze, glazing, enamel Etc..
  • one the intersection joint area on one side of the segments covering holding plate 31 may be arranged with four cross bolts 32, 33, 34, 35 through four corresponding holes in the four inserted through adjacent corners of the dip tube segments are, with the four transverse bolts inserted through them
  • Crossbars 36, 37 are secured to secure the holding plate 31.

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  • Cyclones (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

The cyclone separator which is especially for the direct transfer of hot gases has a central segmented immersion pipe with a U-section angled rail (18) detachably connected to the upper side and/or lower sides of the smooth pipe segments (12,14). The sides of the rail grip round the upper side and/or lower side of the segments in hook fashion. The immersion pipe segments are made from a heat-resistant metal sheet material, and the angled rail is produced from cast steel.

Description

Die Erfindung betrifft einen Zyklonabscheider, insbesondere für die direkte Wärmeübertragung von den heißen Abgasen einer Drehrohrofen-Zyklonschwebegas-Wärmetauscher-Anlage zur Herstellung von Zementklinker aus Zementrohmehl, mit tangentialer Zuführung von Gas und Rohmehl, Gutaustrag im unteren Zyklonbereich und mit von oben in den Zyklonabscheider hineinragenden, an der Zyklondecke mittels Schraubenbolzen lösbar aufgehängten und zu einem zentralen Tauchrohr für die Gasabführung zusammensetzbaren Tauchrohrsegmenten.The invention relates to a cyclone separator, in particular for direct heat transfer from the hot exhaust gases of a rotary kiln cyclone suspended gas heat exchanger system for production of Cement clinker made of raw cement flour, with tangential feed of Gas and raw meal, good discharge in the lower cyclone area and with from protruding into the cyclone separator at the top, on the cyclone ceiling detachably suspended by means of bolts and to a central Immersion tube for the gas discharge of assemble immersion tube segments.

Anlagen zur Herstellung von Zementklinker aus Zementrohmehl weisen einen Drehrohrofen und einen diesem materialflussseitig gesehen vorgeschalteten Zyklonschwebegas-Wärmetauscher mit Calcinator auf. Im Zyklonschwebegas-Wärmetauschersystem wird das Zementrohmehl im kombinierten Gleich-/Gegenstrom zum heißen Abgas der Calcinierstufe bzw. des Drehrohrofens vorerhitzt, und das in der Calcinierstufe vorcalcinierte Gutmaterial wird im untersten Zyklon des Zyklonschwebegas-Wärmetauschersystems vom Heißgas abgetrennt und in den Drehrohrofen eingeführt. Es versteht sich, dass dabei die Heißgaszyklone des Zyklonschwebegas-Wärmetauscherstranges, insbesondere der unterste Zyklon, der mit Heißgas und Heißmehl einer Temperatur von z. B. 700 bis 950° C in Berührung kommt, einer hohen mechanischen, chemischen und thermischen Beanspruchung und damit einem hohen thermochemischen und abrasiven Verschleiß ausgesetzt sind. Dies gilt insbesondere für das zentral von oben in den Zyklonabscheider hineinragende Tauchrohr.Equipment for the production of cement clinker from raw cement meal seen a rotary kiln and this one on the material flow side upstream cyclone levitation gas heat exchanger with calciner on. In the cyclone levitation gas heat exchanger system that becomes Cement raw meal in combined cocurrent / countercurrent to the hot exhaust gas the calcining stage or the rotary kiln, and that in the calcination stage precalcined good material is in the bottom cyclone of the cyclone floating gas heat exchanger system is separated from the hot gas and inserted into the rotary kiln. It goes without saying that the hot gas cyclones of the cyclone suspended gas heat exchanger strand, especially the bottom cyclone, with hot gas and Hot flour at a temperature of e.g. B. 700 to 950 ° C in contact comes, a high mechanical, chemical and thermal Stress and thus a high thermochemical and abrasive Are subject to wear. This is especially true for the central Dip tube protruding from above into the cyclone separator.

Es ist daher schon bekannt (DE-C-32 28 902 und DE-A-198 25 206), bei einem diesen hohen Beanspruchungen ausgesetzten Zyklonabscheider das Tauchrohr aus mehreren Segmenten zusammenzusetzen und die Segmente untereinander lösbar miteinander zu verbinden, um im Verschleißfall einzelne Tauchrohrsegmente mit verhältnismäßig geringem Zeit- und Arbeitsaufwand erneuern zu können. Dabei ist es bekannt, dass die Oberseiten der Tauchrohrsegmente winkelförmig bzw. hakenförmig ausgeformt sind, wobei mit den Haken die Tauchrohrsegmente an der Zyklondecke aufgehängt sind. Die Hakenaufhängung sichert die Tauchrohrsegmente dagegen, nach unten in den Zyklonabscheider zu fallen, falls sich die radial angeordneten Schraubenbolzen, mittels denen die Oberseiten der obersten Reihe der Tauchrohrsegmente gegen die Decke gespannt sind, während des Betriebes des Zyklonabscheiders infolge Verschleiß lösen sollten. Allerdings ist es aber fertigungstechnisch aufwändig, an den an sich glatten Tauchrohrsegmentblechen durch Umformtechnik und/oder Schweißtechnik haken- bzw. winkelförmige Gebilde anzubringen. Dem Gießen metallischer Tauchrohrsegmente wäre Grenzen gesetzt insofern, als Tauchrohrsegmente, wenn sie nicht dicker als z. B. ca. 15 mm sein sollen, nur bis zu einer Länge von ca. 120 cm frei von Inhomogenitäten gegossen werden können. Große Heißgaszyklone verlangen aber entsprechend große Tauchrohre, bei denen die einzelnen Segmente weit mehr als 120 cm lang sein sollen, die aus Montagegründen nicht zu schwer sein dürfen. Die Standzeit der Tauchrohrsegmente ist bei den bekannten Heißgaszyklonen außerdem noch dann verkürzt, wenn nicht die frei in das Innere des Heißgaszyklons hineinragenden unteren Enden der Tauchrohrsegmente, die einem besonders abrasiven Angriff durch die anströmende Heißgas-Feststoff-Suspension ausgesetzt sind, besonders geschützt sind. It is therefore already known (DE-C-32 28 902 and DE-A-198 25 206), with a cyclone separator exposed to these high loads to assemble the dip tube from several segments and releasably connect the segments to one another, in the event of wear, individual dip tube segments with proportionally to be able to renew in a small amount of time and effort. It is known that the tops of the dip tube segments are angular or hook-shaped, with the hook the dip tube segments are suspended from the cyclone ceiling. The hook suspension secures the dip tube segments against it, down to fall into the cyclone if the radially arranged ones Bolts, by means of which the tops of the top row the dip tube segments are stretched against the ceiling while of the operation of the cyclone separator due to wear. However, it is technically complex to manufacture smooth dip tube segment sheets through forming technology and / or welding technology to attach hook-shaped or angular structures. There would be limits to the casting of metal dip tube segments set as dip tube segments if they are not thicker than z. B. should be about 15 mm, only up to a length of about 120 cm can be cast free of inhomogeneities. Large hot gas cyclones but require correspondingly large immersion tubes in which the individual segments should be far more than 120 cm long, the may not be too heavy for assembly reasons. The service life of the Dip tube segments is also in the known hot gas cyclones then shortened if not free into the interior of the hot gas cyclone protruding lower ends of the dip tube segments, a particularly abrasive attack from the incoming hot gas / solid suspension are particularly protected.

Der Erfindung liegt die Aufgabe zugrunde, für Zementklinkerherstellungsanlagen mit Zyklonschwebegas-Wärmetauschersystem einen Zyklonabscheider insbesondere Heißgaszyklon mit segmentiertem Tauchrohr zu schaffen, dessen Tauchrohrsegmente sicher zu befestigen sind, eine hohe Standzeit aufweisen und dabei doch einfach herstellbar und montierbar sind.The invention has for its object for cement clinker manufacturing plants with cyclone levitation gas heat exchanger system Cyclone separator, especially hot gas cyclone with segmented To create dip tube, its dip tube segments securely attach have a long service life and yet are easy to manufacture and are mountable.

Diese Aufgabe wird gemäß der Erfindung mit einem Zyklonabscheider mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte. Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved according to the invention with a cyclone separator solved with the features of claim 1. Advantageous. further developments the invention are specified in the subclaims.

Charakteristisch für den erfindungsgemäßen Zyklonabscheider mit segmentiertem Tauchrohr ist, dass die Tauchrohrsegmente glatt sind, also weder angegossene noch angeschweißte Hakenteile etc. aufweisen, so dass die Tauchrohrsegmente aus einem einfach herstellbaren vergleichsweise dünnwandigen Metallblech bestehen können und nicht gegossen sein müssen. Mit der Oberseite und/oder Unterseite dieser an sich glatten Tauchrohrsegmente ist eine im Querschnitt jeweils ein U-Profil aufweisende Winkelschiene lösbar verbunden, deren Schenkel die Oberseite und/oder Unterseite der Tauchrohrsegmente hakenförmig umgreifen. Während die Tauchrohrsegmente aus dem einfachen hitzebeständigen Stahlblech bestehen, können die aufgesetzten separaten Winkelschienen aus Stahlguss bestehen.Characteristic of the cyclone separator according to the invention segmented dip tube is that the dip tube segments are smooth, thus have neither cast-on nor welded hook parts etc. so that the dip tube segments from an easy to manufacture comparatively thin-walled metal sheet can exist and don't have to be cast. With the top and / or bottom this, in itself, smooth dip tube segment is one in cross section an angle rail each having a U-profile detachably connected, whose legs the top and / or bottom of the dip tube segments reach around like a hook. During the dip tube segments consist of simple heat-resistant steel sheet, can put on the separate angle rails made of cast steel consist.

Die separaten winkelschienenförmigen Gusshaken, die an der Oberseite der obersten um den Tauchrohrumfang verteilten Reihe von Tauchrohrsegmenten angeordnet sind, sind mittels radialer Schraubenbolzen an die Innenoberflächen der Tauchrohrsegment-Oberseiten gespannt. Mit den separaten winkelschienenförmigen Gusshaken gelingt eine einfache und sichere Aufhängung der um den Tauchrohrumfang verteilten Tauchrohrsegmente. The separate angled rail-shaped cast hooks on the top the uppermost row of Dip tube segments are arranged by means of radial bolts on the inner surfaces of the top of the dip tube segment curious; excited. With the separate angled rail-shaped cast hooks succeeds in a simple and safe suspension of the circumference of the dip tube distributed dip tube segments.

Die Unterseiten der Tauchrohrsegmente, die in das Innere eines Heißgas-Zyklons frei hineinragen und die durch die anströmende und umgelenkte Heißgas-Feststoff-Suspension besonders verschleißbeansprucht sind, sind durch von unten aufgeschobene Winkelschienen verschleißgeschützt, welche die Funktion eines Kantenschutzes haben.The undersides of the dip tube segments that go into the interior of a Hot gas cyclones protrude freely through the inflowing and deflected hot gas / solid suspension particularly subject to wear are, by means of angled rails pushed on from below wear-protected, which have the function of edge protection.

Nach einem weiteren Merkmal der Erfindung können die Tauchrohrsegmente als Verbundkörper ausgebildet sein, indem wenigstens die Tauchrohrsegment-Außenseite, auf welche die in den Zyklonabscheider einströmende abrasive Heißgas-Feststoff-Suspension zuströmt, beschichtet ist insbesondere in der Weise, dass auf dem Metallblech Stege eines metallischen gitterförmigen Rostes angeordnet sind, dessen Öffnungen mit einer hitzebeständigen Keramikmasse ausgefüllt sind.According to a further feature of the invention, the dip tube segments be formed as a composite body by at least the Dip tube segment outside, on which the in the cyclone separator inflowing abrasive hot gas / solid suspension flows in, is coated in particular in such a way that on the metal sheet Webs of a metallic grid-shaped grate are arranged, whose openings are filled with a heat-resistant ceramic mass are.

Die Erfindung und deren weitere Merkmale und Vorteile werden anhand des in den Figuren schematisch dargestellten Ausführungsbeispieles näher erläutert.The invention and its further features and advantages are based on of the embodiment shown schematically in the figures explained in more detail.

Es zeigt:

Fig. 1:
ausschnittsweise einen Vertikalschnitt durch das erfindungsgemäße segmentierte Zyklontauchrohr längs der Linie A-A der Figur 2, und
Fig. 2:
in verkleinertem Maßstab die Seitenansicht auf das segmentierte zusammengesetzte Zyklontauchrohr der Figur 1 gesehen von rechts.
It shows:
Fig. 1:
detail of a vertical section through the segmented cyclone immersion tube according to the invention along the line AA of Figure 2, and
Fig. 2:
in a reduced scale the side view of the segmented composite cyclone dip tube of Figure 1 seen from the right.

Figur 1 zeigt von einem Zyklonabscheider ausschnittsweise die Zyklondecke 10, die innen mit einer Feuerfestauskleidung 11 versehen ist. In den Zyklon münden tangential Heißgas und Zementrohmehl einer Anlage zur Herstellung von Zementklinker ein. Für die Gasabführung ragt zentral von oben in den Zyklonabscheider ein Tauchrohr hinein, das aus einer Vielzahl von Segmenten zusammengesetzt ist und an der Zyklondecke 10 aufgehängt ist. So sind in Figur 2 z. B. die zwei nebeneinander angeordneten Tauchrohrsegmente 12 und 13 zu sehen, an denen unten wiederum die weiteren Tauchrohrsegmente 14 und 15 angehängt sind. Von der Zyklondecke 10 geht zentral nach oben die innen mit einer Feuerfestauskleidung 16 ausgestattete Gasabzugsleitung 17 ab.Figure 1 shows a section of a cyclone separator of the cyclone ceiling 10 provided with a refractory lining 11 on the inside is. Hot gas and raw cement powder flow tangentially into the cyclone a plant for the production of cement clinker. For gas discharge a dip tube protrudes centrally from above into the cyclone separator into it, which is composed of a large number of segments and is suspended from the cyclone ceiling 10. So in Figure 2 z. B. the two dip tube segments 12 and 13 arranged side by side see, on which in turn the further dip tube segments 14 and 15 are appended. From the cyclone ceiling 10 goes centrally at the top the gas exhaust line equipped with a refractory lining 16 17 from.

Prinzipiell sind alle Tauchrohrsegmente 12, 13, 14, 15 etc., weil sie alle glatt sind, untereinander austauschbar.In principle, all dip tube segments 12, 13, 14, 15 etc. are because they all are smooth, interchangeable.

Mit der Oberseite der an sich glatten, aus einfachem hitzebeständigen Metallblech bestehenden Tauchrohrsegmente 12 ist eine im Querschnitt jeweils ein U-Profil aufweisende Winkelschiene 18 lösbar verbunden, deren Schenkel die Oberseite der Tauchrohrsegmente 12 etc. hakenförmig umgreifen. Die Winkelschiene 18 besteht jeweils aus einem separaten Gussteil. Die Innenschenkel der Gusshaken 18 umgreifen auch die Oberseite jeweils eines Steges 19, der sich von der Innenseite von Distanzbuchsen 20 nach oben erstreckt. Die Distanzbuchsen 20 sind um den Tauchrohrumfang verteilt auf der Zyklondecke 10 aufgelagert, an der Gasleitung 17 befestigt und etwa radial zum Tauchrohrzentrum angeordnet. In den Distanzbuchsen 20 ist jeweils ein etwa radial angeordneter Schraubenbolzen 21 angeordnet, mit dem das Tauchrohrsegment 12 etc. mit der isolierten Gasabzugsleitung 17 lösbar zu verbinden ist.With the top of the itself smooth, made of simple heat-resistant Metal sheet existing dip tube segments 12 is one in Cross section each have a U-shaped angle rail 18 detachable connected, the legs of which the top of the dip tube segments 12th etc. grasp like a hook. The angle rail 18 is in each case from a separate casting. The inner legs of the cast hooks 18 also encompass the top of each of a web 19 which extends from the inside of spacers 20 extends upwards. The spacers 20 are distributed around the circumference of the dip tube on the cyclone ceiling 10 supported, attached to the gas line 17 and about arranged radially to the dip tube center. In the spacers 20 an approximately radially arranged screw bolt 21 is arranged, with which the dip tube segment 12 etc. with the insulated Gas discharge line 17 is releasably connected.

Die separaten winkelschienenförmigen Gusshaken 18, die an der Oberseite der obersten um den Tauchrohrumfang verteilten Reihe der Tauchrohrsegmente 12, 13 etc. angeordnet sind, sind mittels der Schraubenbolzen 21 an die Innenoberflächen der Tauchrohrsegment-Oberseiten gespannt. Der Kopf 24 der Schraubenbolzen 21, der an der Tauchrohrinnenseite in einer entsprechenden Ausnehmung des Tauchrohrsegments 12, 13 etc. sowie in der Distanzbuchse 20 angeordnet ist, ist jeweils durch einen Deckel 23 abgedeckt, der die lösbare Befestigung der Tauchrohrsegmente gegen die hohe thermochemische Beanspruchung schützt. Der Deckel 23 kann nach seiner Montage noch durch eine Heftschweißnaht am Gusshakenteil 18 etc. gesichert sein. Der verdickte Kopf 24 der Schraubenbolzen 21 ist in eine Ausnehmung einer Kappe 25 eingelassen, mittels welcher der winkelschienenförmige Gusshaken 18 an das glatte Tauchrohrsegment 12 und dieses an die Innenseite der Distanzbuchsen 20 bzw. an deren Innensteg 19 spannbar ist. Die Schraubenbolzen 21 weisen am radial außenliegenden Ende Muttern 26 auf, mittels denen sie über Federn 27 am Außenumfang der Distanzbuchsen 20 abgestützt sind.The separate angular rail-shaped cast hooks 18 on the Top of the uppermost row around the dip tube circumference Dip tube segments 12, 13 etc. are arranged by means of Bolt 21 on the inner surfaces of the upper tube segment curious; excited. The head 24 of the bolts 21, the the inside of the dip tube in a corresponding recess of the Dip tube segments 12, 13, etc. and arranged in the spacer 20 is covered by a cover 23, which is the detachable Attachment of the dip tube segments against the high thermochemical Stress protects. The lid 23 can according to his Assembly by a tack weld on the cast hook part 18 etc. be secured. The thickened head 24 of the bolts 21 is in recessed in a cap 25, by means of which the Angle rail-shaped cast hooks 18 on the smooth dip tube segment 12 and this on the inside of the spacers 20 and whose inner web 19 can be tensioned. The bolts 21 point on radially outer end nuts 26, by means of which they over Springs 27 are supported on the outer circumference of the spacers 20.

Die Unterseiten der um den Tauchrohrumfang verteilten untersten Reihe der Tauchrohrsegmente 14, 15 etc. sind durch von unten aufgeschobene Winkelschienen 28 verschleißgeschützt. Dieser mit seinen beiden U-Schenkeln die Unterseiten der Tauchrohrsegmente umfassende Kantenschutz kann durch Bolzen 29 mit den Tauchrohrsegmenten verbunden sein. Dabei können die Winkelschienen 28, wie aus Figur 2 ersichtlich, die unteren Enden benachbarter Tauchrohrsegmente 14, 15 miteinander verbinden, wodurch auch das untere Ende des segmentierten Tauchrohres eine hohe Stabilität erreichen kann.The undersides of the lowest around the dip tube circumference Row of the dip tube segments 14, 15, etc. are pushed through from below Angle rails 28 protected against wear. This one with his the undersides of the dip tube segments for both U-legs Comprehensive edge protection can be provided with bolts 29 with the dip tube segments be connected. The angle rails 28, as can be seen from Figure 2, the lower ends of adjacent dip tube segments 14, 15 connect with each other, whereby the lower Achieve high stability at the end of the segmented dip tube can.

Nach einem weiteren Merkmal der Erfindung können die Tauchrohrsegmente 12, 13 etc. als Verbundkörper ausgebildet sein, indem wenigstens die Tauchrohrsegment-Außenseite, auf welche die in den Zyklonabscheider einströmende abrasive Heißgas-Feststoff-Suspension zuströmt, beschichtet ist, insbesondere in der Weise, dass auf dem Metallblech 12 Stege eines metallischen gitterförmigen Rostes angeordnet sind, dessen Öffnungen mit einer hitzebeständigen Keramikmasse 30 ausgefüllt sind. Zu ihrem Schutz kann die Oberfläche der Keramikmasse 30 noch eine Beschichtung möglichst geringer Porosität aufweisen, insbesondere eine Glasur, Verglasung, Emaillierung etc..According to a further feature of the invention, the dip tube segments 12, 13 etc. can be formed as a composite body by at least the dip tube segment outside, on which the in the Cyclonic separator inflowing abrasive hot gas / solid suspension inflows, is coated, especially in such a way that on the metal sheet 12 webs of a metallic grid-shaped grate are arranged, the openings with a heat-resistant ceramic mass 30 are filled out. The surface can protect them the ceramic mass 30 still has a coating with the lowest possible porosity have, in particular a glaze, glazing, enamel Etc..

Wie insbesondere aus Figur 2 hervorgeht, kann im Kreuzungs-Stoßbereich, in dem jeweils zwei nebeneinander benachbarte und zwei darunter angeordnete Tauchrohrsegmente 12, 13, 14, 15 aneinandergrenzen, eine den Kreuzungs-Stoßbereich an einer Seite der Segmente abdeckende Halteplatte 31 angeordnet sein mit vier Querbolzen 32, 33, 34, 35, die durch vier entsprechende Löcher in den vier aneinandergrenzenden Ecken der Tauchrohrsegmente hindurchgesteckt sind, wobei auf den hindurchgesteckten vier Querbolzen Querriegel 36, 37 zur Sicherung der Halteplatte 31 befestigt sind.As can be seen in particular from FIG. 2, in the intersection joint area, in which two adjacent and two next to each other submerged dip tube segments 12, 13, 14, 15 adjoin one another, one the intersection joint area on one side of the segments covering holding plate 31 may be arranged with four cross bolts 32, 33, 34, 35 through four corresponding holes in the four inserted through adjacent corners of the dip tube segments are, with the four transverse bolts inserted through them Crossbars 36, 37 are secured to secure the holding plate 31.

Claims (5)

Zyklonabscheider, insbesondere für die direkte Wärmeübertragung von den heißen Abgasen einer Drehrohrofen-Zyklonschwebegas-Wärmetauscher-Anlage zur Herstellung von Zementklinker aus Zementrohmehl, mit tangentialer Zuführung von Gas und Rohmehl, Gutaustrag im unteren Zyklonbereich und mit von oben in den Zyklonabscheider hineinragenden, an der Zyklondecke (10) mittels Schraubenbolzen (21) lösbar aufgehängten und zu einem zentralen Tauchrohr für die Gasabführung zusammensetzbaren Tauchrohrsegmenten (12, 13, 14, 15),
dadurch gekennzeichnet, dass mit der Oberseite und/oder Unterseite der an sich glatten Tauchrohrsegmente (12) eine im Querschnitt jeweils ein U-Profil aufweisende Winkelschiene (18 bzw. 28) lösbar verbunden ist, deren Schenkel die Oberseite und/oder Unterseite der Tauchrohrsegmente hakenförmig umgreifen.Cyclone separator, especially for the direct heat transfer from the hot exhaust gases of a rotary kiln cyclone suspended gas heat exchanger system for the production of cement clinker from raw cement flour, with tangential supply of gas and raw meal, good discharge in the lower cyclone area and with protruding into the cyclone separator from above on the cyclone ceiling (10) detachably suspended immersion tube segments (12, 13, 14, 15) by means of screw bolts (21) and which can be assembled into a central immersion tube for gas discharge,
characterized in that an angled rail (18 or 28), each with a U-profile in cross section, is releasably connected to the top and / or bottom of the immersion tube segments (12), the legs of which hook-shaped the top and / or bottom of the dip tube segments embrace. Zyklonabscheider nach Anspruch 1,
dadurch gekennzeichnet, dass die Tauchrohrsegmente (12, 13) aus einem hitzebeständigen Metallblech und die Winkelschienen (18 bzw. 28) aus Stahlguss bestehen.Cyclone separator according to claim 1,
characterized in that the dip tube segments (12, 13) consist of a heat-resistant metal sheet and the angle rails (18 or 28) consist of cast steel. Zyklonabscheider nach Anspruch 2,
dadurch gekennzeichnet, dass die Tauchrohrsegmente (12) als Verbundkörper ausgebildet sind, indem wenigstens die Tauchrohrsegment-Außenseite, auf welche die in den Zyklonabscheider einströmende abrasive Heißgas-Feststoff-Suspension zuströmt, beschichtet ist insbesondere in der Weise, dass auf dem Metallblech (12) Stege eines metallischen gitterförmigen Rostes angeordnet sind, dessen Öffnungen mit einer hitzebeständigen Keramikmasse (30) ausgefüllt sind.Cyclone separator according to claim 2,
characterized in that the dip tube segments (12) are designed as composite bodies, in that at least the outside of the dip tube segment, to which the abrasive hot gas / solid suspension flowing into the cyclone separator flows, is coated in particular in such a way that on the metal sheet (12) Webs of a metallic grid-shaped grate are arranged, the openings of which are filled with a heat-resistant ceramic mass (30). Zyklonabscheider nach den Ansprüchen 1 oder 2,
dadurch gekennzeichnet, dass die winkelschienenförmigen Gusshaken (18), die an der Oberseite der obersten um den Tauchrohrumfang verteilten Reihe von Tauchrohrsegmenten angeordnet sind, vermittels der Schraubenbolzen (21) an die Innenoberflächen der Tauchrohrsegment-Oberseiten gespannt sind.Cyclone separator according to claims 1 or 2,
characterized in that the angular rail-shaped cast hooks (18), which are arranged on the top of the uppermost row of dip tube segments distributed around the circumference of the dip tube, are clamped to the inner surfaces of the top of the dip tube segment by means of the screw bolts (21). Zyklonabscheider nach den Ansprüchen 1 oder 2,
dadurch gekennzeichnet, dass die Unterseiten der um den Tauchrohrumfang verteilten untersten Reihe der Tauchrohrsegmente (14, 15) durch die von unten aufgeschobenen Winkelschienen (28) verschleißgeschützt sind.Cyclone separator according to claims 1 or 2,
characterized in that the undersides of the lowermost row of the dip tube segments (14, 15) distributed around the circumference of the dip tube are protected against wear by the angle rails (28) pushed on from below.
EP03007197A 2002-04-04 2003-03-29 Cyclone separator with segmented immersion pipe Expired - Lifetime EP1350571B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10214863A DE10214863A1 (en) 2002-04-04 2002-04-04 cyclone
DE10214863 2002-04-04

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EP1350571A1 true EP1350571A1 (en) 2003-10-08
EP1350571B1 EP1350571B1 (en) 2005-08-10

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US (1) US6837913B2 (en)
EP (1) EP1350571B1 (en)
AT (1) ATE301501T1 (en)
DE (2) DE10214863A1 (en)
DK (1) DK1350571T3 (en)

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Also Published As

Publication number Publication date
DE10214863A1 (en) 2003-10-16
EP1350571B1 (en) 2005-08-10
DK1350571T3 (en) 2005-12-12
ATE301501T1 (en) 2005-08-15
US6837913B2 (en) 2005-01-04
US20030188519A1 (en) 2003-10-09
DE50300925D1 (en) 2005-09-15

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