EP3237116B1 - Immersion pipe for a cyclone separator - Google Patents

Immersion pipe for a cyclone separator Download PDF

Info

Publication number
EP3237116B1
EP3237116B1 EP15820113.7A EP15820113A EP3237116B1 EP 3237116 B1 EP3237116 B1 EP 3237116B1 EP 15820113 A EP15820113 A EP 15820113A EP 3237116 B1 EP3237116 B1 EP 3237116B1
Authority
EP
European Patent Office
Prior art keywords
segment
segments
suspension
immersion pipe
row
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.)
Active
Application number
EP15820113.7A
Other languages
German (de)
French (fr)
Other versions
EP3237116A1 (en
Inventor
Mejdi Zaghdoudi
Hubertus Winkelhorst
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.)
KHD Humboldt Wedag AG
Original Assignee
KHD Humboldt Wedag AG
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 KHD Humboldt Wedag AG filed Critical KHD Humboldt Wedag AG
Priority to PL15820113T priority Critical patent/PL3237116T3/en
Publication of EP3237116A1 publication Critical patent/EP3237116A1/en
Application granted granted Critical
Publication of EP3237116B1 publication Critical patent/EP3237116B1/en
Priority to HRP20181928TT priority patent/HRP20181928T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers

Definitions

  • the invention relates to a dip tube for discharging a gas stream from a cyclone separator, comprising a cylindrical, composed of individual, identical segments wall, wherein the segments are arranged in at least two mutually arranged, each annularly around the circumference of the dip tube extending rows, one at the top End of the dip tube arranged, formed from suspension components, extending annularly around the circumference of the dip tube suspension device for suspension of the dip tube and arranged at the lower end of the dip tube, formed from termination components, annular lower edge to increase the dimensional stability of the dip tube.
  • Cyclone separators are used to separate solid particles contained in gases from the gas stream.
  • the gas stream is passed with the solid particles suspended therein mostly tangentially into the interior of the cyclone, where it is brought by the geometric design of the interior of a helical or conical spiral, downwardly directed path.
  • centrifugal forces the (sufficiently heavy) particles are accelerated to the outside, thereby separated, directed down and finally carried out of the cyclone.
  • the gas stream possibly with a small proportion of very fine particles, flows upwards again through the middle of the cyclone.
  • the diameter and the length of the dip tube With the choice of the diameter and the length of the dip tube, suitable flow conditions and thus optimum conditions for a given cyclone Functionality sought.
  • suitable flow conditions and thus optimum conditions for a given cyclone Functionality sought In addition to significant mechanical dynamic stress due to the high-speed, partly turbulent flowing gas or gas-solid particle stream, the forces given and vibration effects and by the impact of solid particles can lead to chemical and especially thermal loads on the dip tubes.
  • cyclone separators are used in multi-stage heat exchanger systems in plants for the production of cement clinker from cement raw meal.
  • the gases flowing in the combined direct / countercurrent flow to the raw meal (and serving for preheating the raw meal) have high temperatures as exhaust gases from a rotary kiln or a calcining stage. Especially in the lowest cyclone typical temperatures of about 700 ° to 950 ° C, briefly even higher temperatures occur, so that the dip tube is here exposed to a particularly high thermal stress and thus a high thermochemical and abrasive wear.
  • the nature of immersion tubes therefore presents the challenge of meeting the problems encountered in these extreme conditions.
  • the cylindrical wall is composed of a plurality of longitudinal segments, which are separately detachably attached to the Zyklonabscheiderdecke and are surrounded to support and maintain the ring shape of the dip tube at the bottom with a ring.
  • the occurrence of deformations and shell fractures during thermal cycling can be at least reduced by the longitudinal segment design and the assembly work can be simplified.
  • a dip tube for a centrifugal separator which consists of a plurality of superimposed and interconnected rings, which in turn are composed of a plurality of plate-shaped segments.
  • the connection of the gravity-operated hinged segments into the segments of the overlying row is at least partially allows obliquely shaped contact surfaces, so that a modular box-like connection system is created in which the stability of the dip tube is given by caused by the slopes self-locking of the individual elements.
  • the bevels are formed on lugs and recesses in the manner of bone ends, so that a puzzle-like composition of the segments, given as castings takes place.
  • dip tube for discharging a gas stream from a cyclone separator comprising a cylindrical, composed of individual, identical segments wall which are arranged in at least two mutually arranged, each annularly around the circumference of the dip tube extending rows is also from the US 2012/204526 A1 known.
  • the object of the invention is therefore to provide a dip tube for discharging a gas stream from a cyclone separator, in which high rigidity of the wall, including resilient connection between individual Wandungs knew once, and dimensional stability are given even with strong mechanical dynamic and thermal stresses and in the assembly and Maintenance work can be quickly, easily and economically designed.
  • the object of the invention is achieved by a dip tube for discharging a gas stream from a cyclone separator with the features of claim 1 solved. Further advantageous embodiments are specified in the subclaims to claim 1.
  • each segment has a plate-like base body, wherein the plate-like base body (in a vertical position) in its horizontal extension of the cylindrical shape the wall has corresponding curvature and in the vertical, performed in the radial direction section a flattened at the ends, in approximately S-shape such that an overlap of the lower body portion of a segment of a series with the upper portions of the adjacent segments of the underlying row can; Furthermore, it is provided that each segment has in its lower portion two horizontal, running at the same height, symmetrically arranged, slit-like and open to the respective edge of the body recesses and that each segment in the central region of the upper edge of the body on the interior
  • the inner side of the immersion tube has an approximately perpendicular to the main body projecting plate portion, wherein the plate portion in the region of its inner region of the dip tube edge in their outer portions each have an approximately right angle upwardly guided, substantially cu
  • composition of the wall of segments, as well as the structure of the suspension as well as the lower end of the dip tube of individual components simplifies assembly and replacement of individual segments or components.
  • a faster and thus comparatively economically favorable exchange of segments of the wall in maintenance and repair measures by the inserted, suspended connection of the segments with each other is possible; In particular, no welding is necessary.
  • material exchange can be limited to the areas actually affected.
  • an extension or shortening of the dip tube can be made, if this appears advantageous under changed operating conditions of the cyclone.
  • the segmental construction conveys in known manner, even with the immersion tube proposed according to the invention, the load-bearing capacity with respect to thermal and, in particular, deforming actions and, in principle, also to mechanically dynamic actions. It has been shown that the above-described construction-related manner of the connection between the segments - as well as the presence of a final lower edge - causes a considerable and, for example, the conditions of a cyclone (in the lower stages) of a heat exchanger system in the course of producing cement clinker From raw meal sufficient dimensional stability and rigidity of the dip tube.
  • a high dynamic load capacity of the segment connection is ensured by the fact that the hooking / plug connection between segments of adjacent rows is strengthened and secured in a double manner:
  • the projection elements secure after fitting the plate sections in the recesses of the adjacent segments by angled, surface contact with the overlying segment, the compound produced by the fitting of the plate sections in addition and more stable than about a contact along a slope.
  • the attachment elements above the recesses prevent, for example by additional shear forces, laterally slipping out of one segment from the other, since the attachment elements block the protrusion elements of the surface section fitted in the respective recess against such movement.
  • the overlapping of the connected segment rows made possible by the S-shape of the plate-like segment main body contributes to the dimensional stability and the tightness of the dip tube.
  • the at least two attachment elements are arranged on the inside of each segment at the respective edge, that between the corresponding attachment elements of two in a series of adjacent segments planar contact is given for stabilizing the shape of the dip tube.
  • the neck elements according to the invention not only fulfill the function of preventing lateral loosening and thus the occurrence of leaks in the dip tube wall between adjacent segments of a row due to the strong dynamic load of the dip tube during operation.
  • the necking elements also contribute significantly to maintaining the energetically advantageous and important for keeping the wear of the dip tube cylindrically symmetrical shape of the dip tube, as local disturbances are derived by the Ansatzmaschinefulness over the entire circumference.
  • a particularly strong stress of the dip tube from the temperature of the gas stream and the still suspended therein finest particles e.g. be used in cement production
  • Requirements for the material of the segments therefore relate in particular to heat resistance, resistance to high-temperature corrosion, toughness and strength.
  • a particularly advantageous embodiment of the invention therefore provides that the segments are made of heat-resistant cast steel. It is advantageous in this case to manufacture the segments as in each case only one casting, but also multi-component casting or other suitable methods are possible.
  • heat-resistant steel sheet can be used for the segments, but here is included in the calculation that the production by processes such Bending and welding is expensive.
  • the segments are ergonomically designed, that is designed in particular portable and easy to handle.
  • the size of each segment is sized so that the weight of the segment does not exceed 60 kg, preferably 25 kg, more preferably 10 kg. It is one of the advantages of the segment design that it makes it possible to simultaneously move and replace only individual segments during assembly and repair of the dip tube. It shortens the assembly and repair times or extends the service life, if the segments are handy and can be lifted in the best case by a single installer. The segments can accordingly be kept small without the dip tube losing functionality and stability.
  • the termination components at the lower end of the dip tube to a first portion are formed by at the lower end of the dip tube annularly around the circumference arranged end segments and a second portion of the end segments interconnecting stabilizing elements;
  • each end segment (in the vertical position) in its upper portion designed as the corresponding upper portion of a segment of the wall of the dip tube so that the end segment with a projecting plate portion and two projection elements in the recesses of each two adjacent, in the lowest segment row of Wall arranged segments engaged to make a connection;
  • there is the lower part of each end segment of a plate-like body which has an upwardly open U-profile to the inside by double angulation, wherein the two upwardly facing flanges of the U-profile are additionally connected by at least two webs together;
  • the stabilizing elements have an elongated shape with recesses on the underside in such a way that along the entire circumference of the dip tube per several, preferably
  • the U-profile allows the introduction of preferably also made of heat-resistant steel elongated bodies at the lower end of the end segments.
  • the latter can be plugged onto the webs and there exert a clamping effect, which at low temperature-induced expansion yet is reinforced.
  • each suspension component consists of a suspension segment and a suspension body;
  • each suspension segment is arranged offset to the segments of the top row of the wall of the dip tube and (in a vertical position) in its lower portion designed as well as the corresponding lower portion of a segment of the wall so that the projecting plate portions of the two adjacent segments of the uppermost Engage row in the recesses of the suspension segment and are prevented at the protrusion elements by the attachment elements of the suspension segment on the side sliding out;
  • the upper part of each suspension segment consists of a plate-like base body, which has a hook-forming, downwardly open U-profile to the outside by double angulation; moreover, each suspension body is arranged on a ceiling of the cyclone, adjacent to the upper edge of the dip tube and has a shape such that the corresponding suspension segment can be hung with its hook on an approximately cuboid portion of the suspension body and that of
  • the suspension bodies can each be made of a single casting.
  • the suspension bodies can be arranged on the cyclone ceiling, possibly on a flat flange or supporting device attached to the gas line.
  • gas riser pipes lead the gas stream upwards after emerging from the immersion pipe, the gas pipes being fastened by their walls to the cyclone surface.
  • the suspension bodies are made of a refractory material with high compressive strength. Cooling of the suspension is then, as has been shown, by design not required, so that the known from practice problems with cooled suspensions in the present invention proposed suspension structure does not arise.
  • the immersion tube according to the invention is not necessarily limited to the specific shape described here.
  • the segmental design allows it, by appropriate variation of the S-shape of the segments and by trapezoidal instead the normally more rectangular shape of the plate-like segment main body and conical immersion tube sections instead of purely cylindrical immersion tubes to realize.
  • individual parts may vary in their concrete shape.
  • FIG. 1 an embodiment of the dip tube 1 according to the invention is shown in side view.
  • the cylindrical wall 2 of the dip tube 1 consists of interconnected, annular rows, which in turn are composed of the same shape and preferably made of heat-resistant steel castings segments 3.
  • At the upper edge of the dip tube 1 opens into an upwardly leading gas discharge line 4 (shown schematically in the approach), wherein on the wall of the gas discharge line 4 suspension body 5 are screwed.
  • suspension bodies 5 are arranged annularly over the entire circumference, wherein in Fig. 1 only the two suspension body 5 are shown on the left and right at the top.
  • the suspension bodies 5 are mounted on a web welded to the gas discharge line 4 or on the cyclone separator cover 6.
  • each suspension segment 7 is suspended on a suspension body 5, whereby the entire dip tube 1 undergoes a suspension.
  • the lower edge of the dip tube 1 is stabilized by a series of end segments 8, in which formed at the lower end of the U-shaped profile formed as a longitudinal body stabilizing elements 9 are introduced (not visible in the figure).
  • the dip tube 1 leads the gas stream entering from below, from which the solid particles are optionally separated except for ultrafine particles, from the cyclone upwards.
  • the dip tube 1 off FIG. 1 is in FIG. 2 shown in supervision.
  • the suspension segment 7 is suspended from the suspension body 5, wherein the suspension body 5 on a welded to the gas discharge line 4 web or on the Zyklonabscheiderdecke 6 with a screw 10 on the wall of the gas discharge line 4 is releasably attached.
  • the suspension of the suspension segment 7 takes place by means of its upper end formed profile of a hook 11 on the cuboid portion 12 of the suspension body 5, wherein the cuboid portion 12 merges into a downwardly recessed portion 13 of the suspension body 5.
  • the parallelepiped portion 12 may be configured in other shapes.
  • segments 3 of the wall 2 adjoin the suspension segment 7 in the exemplary embodiment. These segments 3 overlap due to their flattened, approximately S-shaped profile and are hooked into each other, wherein the adjacent segments 3 mutually adjacent rows are offset from each other (see. FIG. 1 ).
  • the lower end is formed by a terminating segment 8, in the U-profile 14 located at its lower end, a piece of a stabilizing element 9 is fitted.
  • 1 to 4.3 is a suspension segment 7 in top view (4.1), in view of its facing away from the interior of the dip tube 1 outside (4.2) and in side view (4.3).
  • the view from above shows the curved shape having the suspension segment 7 corresponding to the cylindrical shape of the dip tube 1.
  • the suspension segment 7 has a plate-like base body 15, at its upper end by double angle forming a U-shaped profile is formed, which serves as a hook 11 for the suspension.
  • the suspension segment 7 for connection to the segments 3 of the top row on two slot-shaped, horizontal and open towards the edge recesses 16.
  • the provided on the inside approach elements 17 are part of the construction according to the invention, which prevents slipping out of the hinged segment 3 from the respective recess 16.
  • 1 to 5.3 is a segment 3 of the wall 2 in top view (5.1), in view of the interior of the dip tube 1 facing away from the outside (5.2) and in side view (5.3).
  • the arched shape is in the horizontal direction, in the side view the flattened, approximately S-shape of the plate-like body 15 of the segment 3 can be seen.
  • the design of the segment 3 corresponds to the design of the lower region of a suspension segment 7 already explained.
  • the segment 3 has a plate section 18 projecting at right angles to the inner side. At its two corners located toward the inside, the plate section 18 has a flat projecting element 19 guided at right angles to the top.
  • the dimensions of the segments 3 are chosen so that a segment 3, each with half of its plate portion 18 in the adjacent recesses 16 of the adjacent, in the row overlying segments 3 (or end segments 8) can be fitted.
  • the projection elements 19 engage with surface contact on the inside behind the main body 15 of the respective overlying segment 3 (or end segment 8).
  • the protrusion elements are positioned in the inward direction directly adjacent to the respective attachment elements 17, so that lateral sliding out of the recesses 16 is blocked even with a large force.
  • each end segment 8 has an upwardly open U-profile 14 towards the inside.
  • the two legs (flanges) of the U-profile 14 are connected by two webs 20 with each other.
  • stabilizing elements 9 are introduced for stabilizing the form of the dip tube.
  • a stabilizing element 9 is in the FIGS. 7 , 1 (Top view), 7.2 (view on the long side) and 7.3 (view on the lateral side).
  • a stabilizing element 9 is provided for every two adjacent end segments 8.
  • Stabilizing element recesses 21 are provided on its underside in such a way that each recess 21 can embrace one web 20 each of the two adjacent end segments 21 from above and produces a connection-resistant and dimensionally stable lower end of the immersion tube 1 by the clamping or wedging action given thereby.
  • FIG. 8 shows a suspension body 5 in an oblique view. As described above, it has an approximately cuboidal portion 12. In order for the hook 11 of the corresponding suspension segment 7 to be attached to this parallelepiped-shaped section 12, the further part of the suspension body 5 is formed by a step 13 which is stepped downwards or, as shown and for reasons of static preference, continuously downwardly recessed. This leads the suspension body 5 to a solid construction element, in particular the wall of the gas discharge line 4, to which the suspension body 5 with at least one recessed screw 10 can be releasably screwed.
  • the suspension body 5 are preferably made of refractory material with high compressive strength, so that can be dispensed with special cooling measures.
  • dip tube 1 By the illustrated in the exemplary embodiment, combined from three parts construction of the dip tube 1 - consisting firstly of the explained segments 3 of the wall 2 with their connecting devices according to the invention, secondly from the suspension components 5, 7 according to the invention and thirdly from the final components 8, 9 - is a dip tube 1 indicated which (when using the materials mentioned) is also suitable for the extreme thermal and mechanical dynamic stresses that prevail, for example, in cyclone separators used in the cement industry, and thereby enables economically favorable operation.

Landscapes

  • Cyclones (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

Die Erfindung betrifft ein Tauchrohr zur Ausleitung eines Gasstroms aus einem Zyklonabscheider, aufweisend eine zylindrische, aus einzelnen, formgleichen Segmenten zusammengesetzte Wandung, wobei die Segmente in mindestens zwei untereinander angeordneten, sich jeweils ringförmig um den Umfang des Tauchrohres erstreckenden Reihen angeordnet sind, eine am oberen Ende des Tauchrohres angeordnete, aus Aufhängungskomponenten gebildete, sich ringförmig um den Umfang des Tauchrohres erstreckende Aufhängungsvorrichtung zur Aufhängung des Tauchrohres und eine am unteren Ende des Tauchrohres angeordnete, aus Abschlusskomponenten gebildete, ringförmige Unterkante zur Erhöhung der Formfestigkeit des Tauchrohres.The invention relates to a dip tube for discharging a gas stream from a cyclone separator, comprising a cylindrical, composed of individual, identical segments wall, wherein the segments are arranged in at least two mutually arranged, each annularly around the circumference of the dip tube extending rows, one at the top End of the dip tube arranged, formed from suspension components, extending annularly around the circumference of the dip tube suspension device for suspension of the dip tube and arranged at the lower end of the dip tube, formed from termination components, annular lower edge to increase the dimensional stability of the dip tube.

Zyklonabscheider (Zyklone, Fliehkraftabscheider) werden eingesetzt, um feste Partikel, die in Gasen enthalten sind, aus dem Gasstrom abzusondern. Dazu wird der Gasstrom mit den darin suspensierten Festkörperpartikeln zumeist tangential in das Innere des Zyklons geleitet, wo er durch die geometrische Gestaltung des Innenraums auf eine wendelförmige oder konisch spiralförmige, nach unten gerichtete Bahn gebracht wird. Durch Zentrifugalkräfte werden die (hinreichend schweren) Partikel nach außen beschleunigt, dadurch abgesondert, nach unten geleitet und schließlich aus dem Zyklon ausgeführt. Der Gasstrom, ggf. mit einem geringen Anteil von Feinstpartikeln, strömt durch die Mitte des Zyklons wieder nach oben. Ein mittig von oben in den Zyklon hinreichendes Rohr, das sogenannte Tauchrohr, dient dazu, den Gasstrom (ggf. mit Feinstpartikeln) nach oben abzuführen. Mit Wahl des Durchmessers und der Länge des Tauchrohres werden bei einem gegebenen Zyklon geeignete Strömungsverhältnisse und damit optimale Funktionalität angestrebt. Neben erheblicher mechanisch dynamischer Beanspruchung durch den mit hoher Geschwindigkeit, teils turbulent strömenden Gas- bzw. Gas-Festkörperpartikel-Strom, die damit gegebenen Kräfte sowie Vibrationswirkungen und durch den Aufprall von festen Partikeln kann es zu chemischen und besonders auch thermischen Belastungen der Tauchrohre kommen. Beispielsweise werden Zyklonabscheider in mehrstufigen Wärmetauschersystemen bei Anlagen zur Herstellung von Zementklinker aus Zementrohmehl eingesetzt. Die hierbei im kombinierten Gleich-/Gegenstrom zum Rohmehl strömenden (und zur Vorwärmung des Rohmehls dienenden) Gase besitzen als Abgase eines Drehrohrofens bzw. einer Calcinierstufe hohe Temperaturen. Insbesondere im untersten Zyklon treten hier typische Temperaturen von ca. 700° bis 950°C, kurzzeitig sogar noch höhere Temperaturen, auf, so dass das Tauchrohr hier einer besonders hohen thermischen Beanspruchung und damit einem hohen thermochemischen sowie abrasiven Verschleiß ausgesetzt ist. An die Beschaffenheit von Tauchrohren besteht daher die Herausforderung, den bei diesen extremen Bedingungen auftretenden Problemen zu begegnen.Cyclone separators (cyclones, centrifugal separators) are used to separate solid particles contained in gases from the gas stream. For this purpose, the gas stream is passed with the solid particles suspended therein mostly tangentially into the interior of the cyclone, where it is brought by the geometric design of the interior of a helical or conical spiral, downwardly directed path. By centrifugal forces, the (sufficiently heavy) particles are accelerated to the outside, thereby separated, directed down and finally carried out of the cyclone. The gas stream, possibly with a small proportion of very fine particles, flows upwards again through the middle of the cyclone. A centrally from above into the cyclone pipe, the so-called dip tube, serves to remove the gas flow (possibly with ultrafine particles) upwards. With the choice of the diameter and the length of the dip tube, suitable flow conditions and thus optimum conditions for a given cyclone Functionality sought. In addition to significant mechanical dynamic stress due to the high-speed, partly turbulent flowing gas or gas-solid particle stream, the forces given and vibration effects and by the impact of solid particles can lead to chemical and especially thermal loads on the dip tubes. For example, cyclone separators are used in multi-stage heat exchanger systems in plants for the production of cement clinker from cement raw meal. The gases flowing in the combined direct / countercurrent flow to the raw meal (and serving for preheating the raw meal) have high temperatures as exhaust gases from a rotary kiln or a calcining stage. Especially in the lowest cyclone typical temperatures of about 700 ° to 950 ° C, briefly even higher temperatures occur, so that the dip tube is here exposed to a particularly high thermal stress and thus a high thermochemical and abrasive wear. The nature of immersion tubes therefore presents the challenge of meeting the problems encountered in these extreme conditions.

Eine Verbesserung gegenüber den aus einem Stück Rohr gefertigten Tauchrohren stellt das in der Druckschrift DE 32 28 902 C2 offenbarte Tauchrohr dar, dessen zylindrische Wandung aus mehreren Längssegmenten zusammengesetzt ist, die separat voneinander an der Zyklonabscheiderdecke lösbar befestigt sind und zur Unterstützung und Aufrechterhaltung der Ringform des Tauchrohrs am unteren Ende mit einem Ring umgeben sind. Das Auftreten von Verformungen und Mantelbrüchen bei thermischen Wechselbelastungen kann durch die Längssegmentbauweise zumindest reduziert und die Montagearbeit vereinfacht werden.An improvement over the made of a piece of pipe immersion tubes that provides in the Publication DE 32 28 902 C2 disclosed dip tube, the cylindrical wall is composed of a plurality of longitudinal segments, which are separately detachably attached to the Zyklonabscheiderdecke and are surrounded to support and maintain the ring shape of the dip tube at the bottom with a ring. The occurrence of deformations and shell fractures during thermal cycling can be at least reduced by the longitudinal segment design and the assembly work can be simplified.

In der Druckschrift EP 0 962 255 B1 wird eine Aufhängung bei Tauchrohren mit segmentiert zusammengesetzten Wandungen offenbart, bei der die durch extreme thermische Belastung entstehenden Probleme hinsichtlich Belastbarkeit und Festigkeit der Aufhängung dadurch reduziert werden, dass eine Kühlung der Aufhängungsschrauben durch deren Anordnung in Umgebungsluft-gekühlten Distanzbuchsen vorgesehen ist. Anforderungen an Montage und Wartung ergeben sich hierbei daraus, dass es sich um eine vergleichsweise komplexe Konstruktion handelt.In the Document EP 0 962 255 B1 A suspension is disclosed for segmented composite walled immersion tubes which reduce the extreme thermal stress problems associated with load bearing capacity and suspension rigidity by providing cooling of the suspension bolts by placing them in ambient air cooled spacers is provided. Requirements for assembly and maintenance arise from the fact that it is a comparatively complex design.

In der EP 1 153 662 B1 und der EP 0 447 802 werden Einbauelemente zum Zusammensetzen eines hitze- und verschleißbeanspruchten segmentierten Tauchrohres vorgeschlagen. Diese werden auf metallischen Gitterrosten angeordnet und weisen hitzebeständiges, keramisches Material auf. Neben dem wirtschaftlich intensiven Aufwand bei der Herstellung dieses Tauchrohres kann das Problem entstehen, dass die Flexibilität des Metallgitters im Betrieb zu Beschädigungen der eingebrachten, teils spröden Keramikmasse führt.In the EP 1 153 662 B1 and the EP 0 447 802 are proposed installation elements for assembling a heat and wear-stressed segmented dip tube. These are arranged on metallic gratings and have heat-resistant, ceramic material. In addition to the economically intensive effort in the production of this dip tube, the problem may arise that the flexibility of the metal grid during operation leads to damage of the introduced, partly brittle ceramic material.

In der Entwicklung werden zunehmend zur Verbesserung der mechanischen Tauchrohrbelastbarkeit und zur Vereinfachung von Montage und Wartung die Tauchrohrwandungen aus reihenweise angeordneten, vergleichsweise kleinen Segmenten, die schwerkraftfolgend ineinander gehängt und letztlich am oberen Tauchrohrrand eingehängt sind, zusammengesetzt, bspw. vorgeschlagen in der US 7,841,477 B2 . Nicht nur werden dort jedoch mögliche Reparaturarbeiten durch eine nicht aus einzelnen Komponenten zusammengesetzte, sondern einheitliche, ringförmige Vorrichtung zur Aufhängung der Segmente an der Zyklondecke (bzw. letztlich an der wegführenden Gasleitung) vorgeschlagen. Darüber hinaus werden auch keine Konstruktionsweisen für eine hinreichend feste Verbindung der Segmente untereinander gelehrt, die hinsichtlich Dichtigkeit und Formstabilität des Tauchrohres auch hohen dynamischen Beanspruchungen genügen.In the development are increasingly to improve the mechanical Tauchrohrbelastbarkeit and to simplify installation and maintenance the Tauchrohrwandungen arranged in rows, comparatively small segments that are gravity hanged in one another and ultimately mounted on the upper dip tube edge, composed, for example, proposed in the US 7,841,477 B2 , Not only, however, are proposed there possible repair work by a not composed of individual components, but uniform, annular device for suspending the segments on the cyclone ceiling (or ultimately to the gas pipe leading away). In addition, no design methods are taught for a sufficiently firm connection of the segments with each other, which also meet high dynamic stresses in terms of tightness and dimensional stability of the dip tube.

Detaillierte Vorschläge für solche Segmentverbindungen werden in der DE 42 36 895 A1 gelehrt. Vorgeschlagen wird ein Tauchrohr für einen Fliehkraftabscheider, das aus einer Mehrzahl übereinander angeordneter und miteinander verbundener Ringe besteht, die sich ihrerseits aus einer Mehrzahl plattenförmiger Segmente zusammensetzen. Die Verbindung der schwerkraftbewirkt eingehängten Segmente in die Segmente der darüber liegenden Reihe wird durch zumindest teilweise schräg gestaltete Anlageflächen ermöglicht, so dass ein modulares baukastenähnliches Verbindungssystem entsteht, bei dem die Stabilität des Tauchrohres durch von den Schrägen bewirkte Selbstsperrung der einzelnen Elemente gegeben wird. In einer Weiterbildung sind die Schrägen an Ansätzen und Aussparungen nach Art von Knochenenden ausgebildet, so dass eine puzzle-artige Zusammensetzung der Segmente, gegeben als Gussteile, erfolgt. Weiterführende Hinweise auf Aufhängungskomponenten am oberen Rand des Tauchrohres und auf das Vorsehen eines formstabilisierenden Abschlusses am unteren Rand werden nicht gegeben. Obwohl mit dem Vorschlag eine gewisse Stabilität des Tauchrohres gegeben ist, sind dem Prinzip der als Schrägen gestalteten, ggf. an Aussparungen / Ansätzen ausgebildeten Anlageflächen bei extremen dynamischen Bedingungen jedoch Grenzen gesetzt. Beispielsweise wirken Vibrationen, Stöße und Dichteschwankungs-bedingte Scherkräfte auf die Wandung bzw. die einzelnen Segmente so ein, dass es zu Kräften kommt, die nicht nur nach innen bzw. außen, sondern auch mit nennenswerten Komponenten in der Ebene der benachbarten Segmente wirken. Die Ansätze mit Schrägflächen sind hierbei kaum geeignet, die Verbindung gegen die Kräfte aufrecht zu halten, so dass die Formstabilität des Tauchrohres sinkt. Zumindest jedoch kommt es im Laufe des Betriebes zu Abnutzungen der Schrägen und zur Gefahr von Brüchen in z.B. knochenartig gestalteten Ansätzen, so dass kostenintensive Wartung droht. Ein weiteres Beispiel von einem Tauchrohr zur Ausleitung eines Gasstroms aus einem Zyklonabscheider, aufweisend eine zylindrische, aus einzelnen, formgleichen Segmenten zusammengesetzte Wandung die in mindestens zwei untereinander angeordneten, jeweils ringförmig um den Umfang des Tauchrohres erstreckenden Reihen angeordnet sind ist auch aus der US 2012/204526 A1 bekannt. Aufgabe der Erfindung ist es daher, ein Tauchrohr zur Ausleitung eines Gasstroms aus einem Zyklonabscheider anzugeben, bei dem auch bei starken mechanisch dynamischen und thermischen Belastungen hohe Steifigkeit der Wandung, einschließlich belastbarer Verbindung zwischen einzelnen Wandungsbestandteilen, und Formstabilität gegeben sind und bei dem Montage- und Wartungsarbeiten schnell, einfach und damit wirtschaftlich günstig gestaltet werden können.Detailed proposals for such segmental connections are given in the DE 42 36 895 A1 taught. Proposed is a dip tube for a centrifugal separator, which consists of a plurality of superimposed and interconnected rings, which in turn are composed of a plurality of plate-shaped segments. The connection of the gravity-operated hinged segments into the segments of the overlying row is at least partially allows obliquely shaped contact surfaces, so that a modular box-like connection system is created in which the stability of the dip tube is given by caused by the slopes self-locking of the individual elements. In a further development, the bevels are formed on lugs and recesses in the manner of bone ends, so that a puzzle-like composition of the segments, given as castings takes place. Further references to suspension components at the upper edge of the dip tube and to the provision of a shape-stabilizing closure at the lower edge are not given. Although with the proposal a certain stability of the dip tube is given, the principle of designed as bevels, possibly formed on recesses / approaches contact surfaces in extreme dynamic conditions, however, limits. For example, vibration, impact and density fluctuation-related shear forces on the wall or the individual segments act in such a way that forces occur which act not only inwards or outwards, but also with significant components in the plane of the adjacent segments. The approaches with inclined surfaces are hardly suitable here to keep the connection upright against the forces, so that the dimensional stability of the dip tube decreases. At least, however, it comes in the course of operation to wear of the slopes and the risk of fractures in, for example, bone-like approaches, so that costly maintenance threatens. Another example of a dip tube for discharging a gas stream from a cyclone separator, comprising a cylindrical, composed of individual, identical segments wall which are arranged in at least two mutually arranged, each annularly around the circumference of the dip tube extending rows is also from the US 2012/204526 A1 known. The object of the invention is therefore to provide a dip tube for discharging a gas stream from a cyclone separator, in which high rigidity of the wall, including resilient connection between individual Wandungsbestandteilen, and dimensional stability are given even with strong mechanical dynamic and thermal stresses and in the assembly and Maintenance work can be quickly, easily and economically designed.

Die erfindungsgemäße Aufgabe wird durch ein Tauchrohr zur Ausleitung eines Gasstroms aus einem Zyklonabscheider mit den Merkmalen des Anspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen zu Anspruch 1 angegeben.The object of the invention is achieved by a dip tube for discharging a gas stream from a cyclone separator with the features of claim 1 solved. Further advantageous embodiments are specified in the subclaims to claim 1.

Nach der Erfindung ist vorgesehen, dass benachbarte Segmente einer Reihe bündig aneinander grenzen und die Segmente zweier benachbarter Reihen versetzt zueinander angeordnet sind und dass jedes Segment einen plattenartigen Grundkörper aufweist, wobei der plattenartige Grundkörper (bei senkrechter Stellung) in seiner horizontalen Erstreckung eine der zylindrischen Form der Wandung entsprechende Krümmung aufweist und im vertikalen, in radialer Richtung durchgeführten Schnitt eine an den Enden abgeflachte, in etwa S-Form aufweist derart, dass ein Überlappen des unteren Grundkörperabschnitts eines Segmentes einer Reihe mit den oberen Abschnitten der angrenzenden Segmente der darunter liegenden Reihe erfolgen kann; ferner ist vorgesehen, dass jedes Segment in seinem unteren Abschnitt zwei horizontale, in gleicher Höhe verlaufende, symmetrisch zueinander angeordnete, schlitzartige und zum jeweiligen Rand des Grundkörpers hin offene Aussparungen aufweist und dass jedes Segment im mittleren Bereich des oberen Randes des Grundkörpers auf der zum Innenbereich des Tauchrohres gelegenen Innenseite einen im etwa rechten Winkel zum Grundkörper vorspringenden Plattenabschnitt aufweist, wobei der Plattenabschnitt im Bereich seiner zum Innenbereich des Tauchrohres gelegenen Kante in deren äußeren Abschnitten jeweils ein im etwa rechten Winkel nach oben geführtes, im Wesentlichen quaderförmiges, flaches Vorsprungselement aufweist, derart dass der vorspringende Plattenabschnitt jedes Segmentes einer Reihe zum Herstellen einer Segmenteverbindung je zur Hälfte in jeweils eine Aussparung der zwei je angrenzenden Segmente der darüber liegenden Reihe eingepasst werden kann und dass bei einer solchen Segmenteverbindung die Vorsprungselemente des unteren Segments flächig und mit Abstand zum offenen Rand der jeweiligen Aussparung auf der Innenseite hinter die Grundkörper der jeweiligen Segmente der darüber liegenden Reihe greifen; darüber hinaus ist vorgesehen, dass jedes Segment auf der Innenseite, oberhalb jeder der beiden Aussparungen, im Randbereich des Grundkörpers je mindestens ein senkrecht nach innen vorstehendes, etwa quaderförmiges Ansatzelement aufweist derart, dass das Ansatzelement bei bestehender Segmenteverbindung durch Sperrwirkung auf das jeweilige Vorsprungselement ein seitliches Herausgleiten des vorspringenden Plattenabschnitts eines angrenzenden, in der Reihe darunter liegenden Segmentes aus der Aussparung verhindert.According to the invention, it is provided that adjacent segments of a row adjoin one another flush and the segments of two adjacent rows are offset from one another and that each segment has a plate-like base body, wherein the plate-like base body (in a vertical position) in its horizontal extension of the cylindrical shape the wall has corresponding curvature and in the vertical, performed in the radial direction section a flattened at the ends, in approximately S-shape such that an overlap of the lower body portion of a segment of a series with the upper portions of the adjacent segments of the underlying row can; Furthermore, it is provided that each segment has in its lower portion two horizontal, running at the same height, symmetrically arranged, slit-like and open to the respective edge of the body recesses and that each segment in the central region of the upper edge of the body on the interior The inner side of the immersion tube has an approximately perpendicular to the main body projecting plate portion, wherein the plate portion in the region of its inner region of the dip tube edge in their outer portions each have an approximately right angle upwardly guided, substantially cuboid, flat projection element, such that the projecting plate portion of each segment of a row for making a segment connection can be fitted in half in each case in a recess of the two adjacent segments of the row above it and that in such Segme nteverbindung the projection elements of the lower segment surface and with distance from the open edge of the respective recess on the inside behind the main body of the respective segments of the overlying row; moreover, it is provided that each segment on the inside, above each of the two recesses, in the edge region of the main body at least one vertically inwardly projecting, approximately cuboid approach element has such that the approach element prevents existing segmental connection by blocking effect on the respective projection element lateral sliding out of the projecting plate portion of an adjacent segment lying below in the row of the recess.

Die Zusammensetzung der Wandung aus Segmenten, ebenso wie der Aufbau der Aufhängung wie auch des unteren Abschlusses des Tauchrohres aus einzelnen Komponenten vereinfacht Montage und Austausch einzelner Segmente bzw. Komponenten. Insbesondere ist ein rascher und damit wirtschaftlich vergleichsweise günstiger Austausch von Segmenten der Wandung bei Wartungs- und Reparaturmaßnahmen durch die gesteckte, hängende Verbindung der Segmente untereinander möglich; insbesondere sind keine Schweißarbeiten notwendig. Durch Vielzahl bzw. Kleinteiligkeit der Segmente kann Materialaustausch auf die tatsächlich betroffenen Bereiche begrenzt werden. Auch kann in vergleichsweise kurzer Zeit eine Verlängerung oder Verkürzung des Tauchrohres vorgenommen werden, wenn dies bei veränderten Betriebsbedingungen des Zyklons vorteilhaft erscheint.The composition of the wall of segments, as well as the structure of the suspension as well as the lower end of the dip tube of individual components simplifies assembly and replacement of individual segments or components. In particular, a faster and thus comparatively economically favorable exchange of segments of the wall in maintenance and repair measures by the inserted, suspended connection of the segments with each other is possible; In particular, no welding is necessary. Due to the large number or small parts of the segments, material exchange can be limited to the areas actually affected. Also, in a relatively short time, an extension or shortening of the dip tube can be made, if this appears advantageous under changed operating conditions of the cyclone.

Die Segmentbauweise befördert in vorbekannter Weise auch bei dem erfindungsgemäß vorgeschlagenen Tauchrohr die Belastbarkeit gegenüber thermischen und dabei insbesondere verformenden Einwirkungen und grundsätzlich auch gegenüber mechanisch dynamischen Einwirkungen. Wie sich gezeigt hat, bewirkt dabei vor allem die beschriebene, konstruktionsbedingte Weise der Verbindung zwischen den Segmenten - sowie das Vorhandensein einer abschließenden Unterkante - eine erhebliche und etwa für die Bedingungen eines Zyklons (in den unteren Stufen) eines Wärmetauschersystems im Zuge der Herstellung von Zementklinker aus Rohmehl hinreichende Formstabilität und Steifigkeit des Tauchrohrs. Insbesondere wird eine hohe dynamische Belastbarkeit der Segmenteverbindung dadurch gewährleistet, dass die Einhäng-/Steckverbindung zwischen Segmenten benachbarter Reihen in doppelter Weise gefestigt und gesichert wird: Die Vorsprungselemente sichern nach Einpassung der Plattenabschnitte in die Aussparungen der angrenzenden Segmente durch gewinkelte, flächige Anlage an dem darüber liegenden Segment die durch die Einpassung der Plattenabschnitte hergestellte Verbindung zusätzlich und stabiler ab, als etwa eine Kontaktierung entlang einer Schräge. Darüber hinaus unterbinden in tangentialer Richtung der Tauchrohrwandung die Ansatzelemente oberhalb der Aussparungen ein z.B. durch zusätzliche Scherkräfte bewirktes, seitliches Herausrutschen eines Segmentes aus dem anderen, da die Ansatzelemente die Vorsprungselemente des in die jeweilige Aussparung eingepassten Flächenabschnittes gegen eine solche Bewegung blockieren. Hinzu kommt, dass die durch die S-Form der plattenartigen Segmentgrundkörper ermöglichte Überlappung der verbundenen Segmentreihen zur Formstabilität und zur Dichtigkeit des Tauchrohres beiträgt.The segmental construction conveys in known manner, even with the immersion tube proposed according to the invention, the load-bearing capacity with respect to thermal and, in particular, deforming actions and, in principle, also to mechanically dynamic actions. It has been shown that the above-described construction-related manner of the connection between the segments - as well as the presence of a final lower edge - causes a considerable and, for example, the conditions of a cyclone (in the lower stages) of a heat exchanger system in the course of producing cement clinker From raw meal sufficient dimensional stability and rigidity of the dip tube. In particular, a high dynamic load capacity of the segment connection is ensured by the fact that the hooking / plug connection between segments of adjacent rows is strengthened and secured in a double manner: The projection elements secure after fitting the plate sections in the recesses of the adjacent segments by angled, surface contact with the overlying segment, the compound produced by the fitting of the plate sections in addition and more stable than about a contact along a slope. In addition, in the tangential direction of the dip tube wall, the attachment elements above the recesses prevent, for example by additional shear forces, laterally slipping out of one segment from the other, since the attachment elements block the protrusion elements of the surface section fitted in the respective recess against such movement. In addition, the overlapping of the connected segment rows made possible by the S-shape of the plate-like segment main body contributes to the dimensional stability and the tightness of the dip tube.

In vorteilhafter Ausführung der Erfindung ist es vorgesehen, dass die mindestens zwei Ansatzelemente auf der Innenseite jedes Segments so am jeweiligen Rand angeordnet sind, dass zwischen den korrespondierenden Ansatzelementen zweier in einer Reihe benachbarter Segmente flächiger Kontakt zur Formstabilisierung des Tauchrohres gegeben ist. Die erfindungsgemäßen Ansatzelemente erfüllen dabei nicht nur die Funktion, ein seitliches Lösen und damit gegebenes Entstehen undichter Stellen in der Tauchrohrwandung zwischen benachbarten Segmenten einer Reihe aufgrund der starken dynamischen Beanspruchung des Tauchrohres im Betrieb zu verhindern. Wie sich gezeigt hat, tragen in dieser Ausführungsform die Ansatzelemente auch erheblich dazu bei, die energetisch vorteilhafte und für ein Geringhalten des Verschleißes des Tauchrohres wichtige zylindrisch symmetrische Form des Tauchrohres aufrecht zu erhalten, da lokale Störungen durch den Ansatzelementekontakt über den ganzen Umfang abgeleitet werden.In an advantageous embodiment of the invention, it is provided that the at least two attachment elements are arranged on the inside of each segment at the respective edge, that between the corresponding attachment elements of two in a series of adjacent segments planar contact is given for stabilizing the shape of the dip tube. The neck elements according to the invention not only fulfill the function of preventing lateral loosening and thus the occurrence of leaks in the dip tube wall between adjacent segments of a row due to the strong dynamic load of the dip tube during operation. As has been shown, in this embodiment, the necking elements also contribute significantly to maintaining the energetically advantageous and important for keeping the wear of the dip tube cylindrically symmetrical shape of the dip tube, as local disturbances are derived by the Ansatzelementekontakt over the entire circumference.

Bei Tauchrohren in Zyklonabscheidern, die in Wärmetauscheranlagen wie z.B. bei der Zementherstellung eingesetzt werden, geht eine besonders starke Beanspruchung des Tauchrohres von der Temperatur des Gasstroms und der darin noch suspensierten Feinstpartikel aus. Anforderungen an das Material der Segmente beziehen sich daher insbesondere auf Hitzebeständigkeit, Beständigkeit gegenüber Hochtemperaturkorrosion, Zähigkeit und Festigkeit. Eine besonders vorteilhafte Ausführung der Erfindung sieht daher vor, dass die Segmente aus hitzebeständigem Stahlguss gefertigt sind. Günstig ist hierbei eine Fertigung der Segmente als jeweils nur ein Gussteil, aber auch Mehrkomponentenguss oder andere geeignete Verfahren sind möglich. Bei Zyklonen, in denen der Gas-Festkörper-Strom geringere Temperaturen besitzt, wie in den oberen Stufen eines mehrstufigen Zyklon-Wärmetauschers, kann auch hitzebeständiges Stahlblech für die Segmente verwendet werden, jedoch ist hier in die Kalkulation einzubeziehen, dass die Fertigung durch Vorgänge wie Biegen und Schweißen aufwendig ist.For dip tubes in cyclone separators used in heat exchangers such as e.g. be used in cement production, a particularly strong stress of the dip tube from the temperature of the gas stream and the still suspended therein finest particles. Requirements for the material of the segments therefore relate in particular to heat resistance, resistance to high-temperature corrosion, toughness and strength. A particularly advantageous embodiment of the invention therefore provides that the segments are made of heat-resistant cast steel. It is advantageous in this case to manufacture the segments as in each case only one casting, but also multi-component casting or other suitable methods are possible. For cyclones in which the gas-solid stream has lower temperatures, such as in the upper stages of a multi-stage cyclone heat exchanger, heat-resistant steel sheet can be used for the segments, but here is included in the calculation that the production by processes such Bending and welding is expensive.

In einer weiteren, besonders vorteilhaften Ausführung der Erfindung ist es vorgesehen, dass die Segmente ergonomisch konzipiert, also insbesondere tragbar und gut handhabbar gestaltet sind. Die Größe eines jeden Segments ist so bemessen, dass das Gewicht des Segments 60 kg, bevorzugt 25 kg, noch mehr bevorzugt 10 kg, nicht überschreitet. Es gehört zu den Vorteilen der Segmentbauweise, dass sie es ermöglicht, bei Montage und Reparatur des Tauchrohres gleichzeitig jeweils nur einzelne Segmente zu bewegen und auszutauschen. Es verkürzt die Montage- und Reparaturzeiten bzw. verlängert die Standzeit, wenn die Segmente dabei handlich sind und im günstigsten Fall von nur einem einzelnen Monteur gehoben werden können. Die Segmente können dementsprechend klein gehalten werden, ohne dass das Tauchrohr an Funktionalität und Stabilität verliert.In a further, particularly advantageous embodiment of the invention, it is provided that the segments are ergonomically designed, that is designed in particular portable and easy to handle. The size of each segment is sized so that the weight of the segment does not exceed 60 kg, preferably 25 kg, more preferably 10 kg. It is one of the advantages of the segment design that it makes it possible to simultaneously move and replace only individual segments during assembly and repair of the dip tube. It shortens the assembly and repair times or extends the service life, if the segments are handy and can be lifted in the best case by a single installer. The segments can accordingly be kept small without the dip tube losing functionality and stability.

In einer weiteren Ausführung der Erfindung ist es vorgesehen, dass die Abschlusskomponenten am unteren Ende des Tauchrohres zu einem ersten Anteil gebildet werden von am unteren Ende des Tauchrohres ringförmig um den Umfang angeordneten Abschlusssegmenten und zu einem zweiten Anteil von die Abschlusssegmente untereinander verbindenden Stabilisierungselementen; dabei ist jedes Abschlusssegment (bei senkrechter Stellung) in seinem oberen Abschnitt ebenso gestaltet wie der entsprechende obere Abschnitt eines Segmentes der Wandung des Tauchrohres so, dass das Abschlusssegment mit einem vorspringenden Plattenabschnitt und zwei Vorsprungselementen in die Aussparungen je zweier angrenzender, in der untersten Segmentreihe der Wandung angeordneter Segmente zur Herstellung einer Verbindung eingreift; ferner besteht dabei der untere Teil eines jeden Abschlusssegmentes aus einem plattenartigen Grundkörper, der zur Innenseite hin durch doppelte Winkelung ein nach oben offenes U-Profil aufweist, wobei die beiden nach oben weisenden Flansche des U-Profils zusätzlich durch mindestens zwei Stege miteinander verbunden sind; darüber hinaus weisen dabei die Stabilisierungselemente eine längsgestreckte Form mit Aussparungen an der Unterseite auf derart, dass entlang des gesamten Umfanges des Tauchrohres je mehrere, bevorzugt je zwei, benachbarte Abschlusssegmente durch Einbringen eines Stabilisierungselementes in das fortlaufende U-Profil dieser Abschlusssegmente verbindungssteif miteinander verbunden werden, wobei die Aussparungen jedes Stabilisierungselementes Stege von mehreren Abschlusssegmenten, bevorzugt je einen Steg von zwei benachbarten Abschlusssegmenten, von oben umgreifen.In a further embodiment of the invention, it is provided that the termination components at the lower end of the dip tube to a first portion are formed by at the lower end of the dip tube annularly around the circumference arranged end segments and a second portion of the end segments interconnecting stabilizing elements; In this case, each end segment (in the vertical position) in its upper portion designed as the corresponding upper portion of a segment of the wall of the dip tube so that the end segment with a projecting plate portion and two projection elements in the recesses of each two adjacent, in the lowest segment row of Wall arranged segments engaged to make a connection; Furthermore, there is the lower part of each end segment of a plate-like body, which has an upwardly open U-profile to the inside by double angulation, wherein the two upwardly facing flanges of the U-profile are additionally connected by at least two webs together; Moreover, in this case, the stabilizing elements have an elongated shape with recesses on the underside in such a way that along the entire circumference of the dip tube per several, preferably two, adjacent end segments are connected by introducing a stabilizing element in the continuous U-profile of these end segments connection stiffness, wherein the recesses of each stabilizing element webs of several end segments, preferably each encompass a web of two adjacent end segments, from above.

Während also die Abschlusssegmente in die unterste Reihe der Wandungssegmente auf die gleiche Weise eingesteckt werden, wie auch die Wandungssegmente benachbarter Reihen untereinander verbunden werden, ermöglicht das U-Profil am unteren Ende der Abschlusssegmente das Einbringen von vorzugsweise ebenfalls aus hitzebeständigem Stahl gefertigten Längskörpern. Durch Stege im U-Profil und hierzu passende Aussparungen an der Unterseite dieser Stabilisierungselemente können letztere auf die Stege gesteckt werden und dort eine Klemmwirkung ausüben, die bei geringer temperaturbedingter Ausdehnung noch verstärkt wird. Für Montage- und Temperaturarbeiten ist es vorteilhaft, wenn jeweils immer nur zwei benachbarte Abschlusssegmente durch je einen Stabilisierungskörper miteinander verbunden werden, wobei auf diese Weise eine ringförmige Anordnung gegeben ist. Wie sich gezeigt hat, leistet die so gegebene, abschließende Unterkante, wo aufgrund der dynamischen Einwirkung des Gasstromes die stärksten mechanischen Beanspruchungen auf das Tauchrohr ausgeübt werden, einen entscheidenden Beitrag zur Verbindungssteifigkeit und Formstabilität des Tauchrohres. Dabei sind die Montagezeiten vergleichsweise gering.Thus, while the termination segments are inserted in the bottom row of Wandungssegmente in the same way as the Wandungssegmente adjacent rows are interconnected, the U-profile allows the introduction of preferably also made of heat-resistant steel elongated bodies at the lower end of the end segments. By webs in the U-profile and matching recesses on the underside of these stabilizing elements, the latter can be plugged onto the webs and there exert a clamping effect, which at low temperature-induced expansion yet is reinforced. For assembly and temperature work, it is advantageous if in each case only two adjacent end segments are connected to each other by a respective stabilizing body, in this way an annular arrangement is given. As has been shown, the thus given, final lower edge, where the strongest mechanical stresses are exerted on the dip tube due to the dynamic action of the gas flow, makes a decisive contribution to the connection rigidity and dimensional stability of the dip tube. The installation times are comparatively low.

Hinsichtlich der Befestigung des Tauchrohres an seinem oberen Ende sieht eine besonders vorteilhafte Ausgestaltung der Erfindung vor, dass jede Aufhängungskomponente aus einem Aufhängungssegment und einem Aufhängungskörper besteht; dabei ist jedes Aufhängungssegment versetzt zu den Segmenten der obersten Reihe der Wandung des Tauchrohres angeordnet und (bei senkrechter Stellung) in seinem unteren Abschnitt ebenso gestaltet wie der entsprechende untere Abschnitt eines Segmentes der Wandung so, dass die vorspringenden Plattenabschnitte der je zwei angrenzenden Segmente der obersten Reihe in die Aussparungen des Aufhängungssegmentes eingreifen und an den Vorsprungselementen durch die Ansatzelemente des Aufhängungssegmentes am seitlichen Herausgleiten gehindert werden; dabei besteht ferner der obere Teil eines jeden Aufhängungssegmentes aus einem plattenartigen Grundkörper, der zur Außenseite hin durch doppelte Winkelung ein einen Haken bildendes, nach unten offenes U-Profil aufweist; darüber hinaus ist jeder Aufhängungskörper auf einer Decke des Zyklonabscheiders, angrenzend an den oberen Rand des Tauchrohres angeordnet und weist eine solche Form auf, dass das korrespondierende Aufhängungssegment mit seinem Haken an einem etwa quaderförmigen Abschnitt des Aufhängungskörpers aufgehängt werden kann und dass von dem quaderförmigen Abschnitt nach außen ein stufenartig oder kontinuierlich nach unten rückspringender Abschnitt des Aufhängungskörpers bis zu einem festen Konstruktionselement des Zyklonabscheiders, bevorzugt die Wandung einer nach oben den Gasstrom wegführenden Gasabzugsleitung, führt und dass der Aufhängungskörper mit dem festen Konstruktionselement des Zyklonabscheiders, bevorzugt der Wandung der Gasabzugsleitung, verschraubt ist.With regard to the attachment of the dip tube at its upper end, a particularly advantageous embodiment of the invention provides that each suspension component consists of a suspension segment and a suspension body; In this case, each suspension segment is arranged offset to the segments of the top row of the wall of the dip tube and (in a vertical position) in its lower portion designed as well as the corresponding lower portion of a segment of the wall so that the projecting plate portions of the two adjacent segments of the uppermost Engage row in the recesses of the suspension segment and are prevented at the protrusion elements by the attachment elements of the suspension segment on the side sliding out; In this case, furthermore, the upper part of each suspension segment consists of a plate-like base body, which has a hook-forming, downwardly open U-profile to the outside by double angulation; moreover, each suspension body is arranged on a ceiling of the cyclone, adjacent to the upper edge of the dip tube and has a shape such that the corresponding suspension segment can be hung with its hook on an approximately cuboid portion of the suspension body and that of the cuboid portion outside a step-like or continuously downwardly recessed portion of the suspension body up to a solid structural element the cyclone separator, preferably the wall of a gas discharge line leading upwards the gas flow leads, and that the suspension body with the solid construction element of the cyclone, preferably the wall of the gas discharge line, is screwed.

Bei der so gegebenen Aufhängung können die Aufhängungskörper jeweils aus einem einzigen Gussteil gefertigt werden. Die Aufhängungskörper können auf der Zyklondecke, ggf. an einem an der Gasleitung angebrachten ebenen Flansch bzw. Stützvorrichtung, angeordnet werden. In der Regel führen bei Zyklonabscheidern Gassteigeleitungen den Gasstrom nach Austritt aus dem Tauchrohr nach oben weg, wobei die Gasleitungen mit ihrer Wandung an der Zyklondecke befestigt sind. Diese Gasleitungswandungen bzw. -mantelungen können - auch bei Nachrüstung schon bestehender Zyklone mit dem hier vorgeschlagenen Tauchrohrtyp - verwendet werden, um die Aufhängungskörper lösbar mit der Gasleitung mit mindestens einer eingesenkten Schraube zu verschrauben und daher der Aufhängung zusätzliche Stabilität zu verleihen. Sowohl eine solche Montage der Aufhängungskörper als auch das Einhängen der Aufhängungssegmente zeichnen sich durch besondere Einfachheit aus, wobei auch die Anzahl der benötigten Teile vergleichsweise gering ist. Schweißarbeiten werden nicht benötigt.In the suspension thus given, the suspension bodies can each be made of a single casting. The suspension bodies can be arranged on the cyclone ceiling, possibly on a flat flange or supporting device attached to the gas line. As a rule, in cyclone separators, gas riser pipes lead the gas stream upwards after emerging from the immersion pipe, the gas pipes being fastened by their walls to the cyclone surface. These Gasleitungswandungen or -mantelungen can - even when retrofitting already existing cyclones with the immersing tube type proposed here - are used to releasably screw the suspension body to the gas line with at least one sunken screw and therefore give the suspension additional stability. Both such mounting of the suspension body and the suspension of the suspension segments are characterized by particular simplicity, with the number of parts required is comparatively low. Welding work is not needed.

Zur Gewährleistung einer hohen Korrosions- und Hitzebeständigkeit ist es in einer Ausführung der Erfindung vorgesehen, dass die Aufhängungskörper aus einem feuerfesten Werkstoff mit hoher Druckfestigkeit gefertigt sind. Eine Kühlung der Aufhängung wird dann, wie sich gezeigt hat, konstruktionsbedingt nicht benötigt, so dass die aus der Praxis bekannten Probleme mit gekühlten Aufhängungen bei der erfindungsgemäß vorgeschlagenen Aufhängungskonstruktion nicht entstehen.To ensure a high corrosion and heat resistance, it is provided in one embodiment of the invention that the suspension bodies are made of a refractory material with high compressive strength. Cooling of the suspension is then, as has been shown, by design not required, so that the known from practice problems with cooled suspensions in the present invention proposed suspension structure does not arise.

Das erfindungsgemäße Tauchrohr ist nicht zwingend auf die hier beschriebene, konkrete Formgebung eingeschränkt. Die Segmentbauweise lässt es zu, durch entsprechende Variation der S-Form der Segmente und durch trapezartige statt der im Normalfall eher rechteckigen Form der plattenartigen Segmentgrundkörper auch konische Tauchrohrabschnitte statt rein zylindrische Tauchrohre zu realisieren. Ohne Abweichung vom erfindungsgemäßen Grundprinzip der Steckverbindungen, Abschluss- und Aufhängungskonstruktion können ferner einzelne Teile in ihrer konkreten Formgebung variieren.The immersion tube according to the invention is not necessarily limited to the specific shape described here. The segmental design allows it, by appropriate variation of the S-shape of the segments and by trapezoidal instead the normally more rectangular shape of the plate-like segment main body and conical immersion tube sections instead of purely cylindrical immersion tubes to realize. Furthermore, without departing from the basic principle of the plug-in connections, terminating and suspension construction according to the invention, individual parts may vary in their concrete shape.

Die Erfindung wird anhand der folgenden Figuren näher erläutert. Es zeigt:

Fig. 1
ein erfindungsgemäßes Tauchrohr in Seitenansicht;
Fig. 2
Ansicht von oben auf das Tauchrohr aus Figur 1;
Fig. 3
einen an einer Umfangsstelle durchgeführten Vertikalschnitt durch das Tauchrohr;
Fig. 4.1
Aufhängungssegment (Aufsicht);
Fig. 4.2
Aufhängungssegment (Ansicht auf die Außenseite);
Fig. 4.3
Aufhängungssegment (Seitenansicht);
Fig. 5.1
Segment der Wandung (Aufsicht);
Fig. 5.2
Segment der Wandung (Ansicht auf die Außenseite);
Fig. 5.3
Segment der Wandung (Seitenansicht);
Fig. 6.1
Abschlusssegment (Aufsicht);
Fig. 6.2
Abschlusssegment (Ansicht auf die Außenseite);
Fig. 6.3
Abschlusssegment (Seitenansicht);
Fig. 7.1
Stabilisierungselement (Aufsicht);
Fig. 7.2
Stabilisierungselement (Längsseitenansicht);
Fig. 7.3
Stabilisierungselement (Querseitenansicht);
Fig. 8
Aufhängungskörper (isometrische Ansicht).
The invention will be explained in more detail with reference to the following figures. It shows:
Fig. 1
an inventive dip tube in side view;
Fig. 2
View from above onto the dip tube FIG. 1 ;
Fig. 3
a vertical section through the dip tube taken at a circumferential location;
Fig. 4.1
Suspension segment (supervision);
Fig. 4.2
Suspension segment (view on the outside);
Fig. 4.3
Suspension segment (side view);
Fig. 5.1
Segment of the wall (supervision);
Fig. 5.2
Segment of the wall (view on the outside);
Fig. 5.3
Segment of the wall (side view);
Fig. 6.1
Closing segment (supervision);
Fig. 6.2
End segment (view on the outside);
Fig. 6.3
End segment (side view);
Fig. 7.1
Stabilizing element (supervision);
Fig. 7.2
Stabilizing element (longitudinal side view);
Fig. 7.3
Stabilizing element (lateral view);
Fig. 8
Suspension body (isometric view).

In Figur 1 ist in Seitenansicht ein Ausführungsbeispiel des erfindungsgemäßen Tauchrohres 1 dargestellt. Die zylindrische Wandung 2 des Tauchrohres 1 besteht aus miteinander verbundenen, ringförmigen Reihen, die ihrerseits aus formgleichen und bevorzugt aus hitzebeständigem Stahlguss gefertigten Segmenten 3 zusammengesetzt sind. Am oberen Rand mündet das Tauchrohr 1 in eine nach oben führende Gasabzugsleitung 4 (schematisch im Ansatz dargestellt), wobei an der Wandung der Gasabzugsleitung 4 Aufhängungskörper 5 verschraubt sind. Diese Aufhängungskörper 5 sind ringförmig über den gesamten Umfang angeordnet, wobei in Fig. 1 nur die beiden Aufhängungskörper 5 links und rechts am oberen Rand abgebildet sind. Die Aufhängungskörper 5 sind dabei auf einem an der Gasabzugsleitung 4 angeschweißten Steg bzw. auf der Zyklonabscheiderdecke 6 gelagert. Mit der obersten Reihe der Segmente 3 der Wandung 2 sind Aufhängungssegmente 7 verbunden, wobei jedes Aufhängungssegment 7 an einem Aufhängungskörper 5 aufgehängt ist, wodurch das gesamte Tauchrohr 1 eine Aufhängung erfährt. Der untere Rand des Tauchrohrs 1 wird stabilisiert durch eine Reihe von Abschlusssegmenten 8, in deren am unteren Ende ausgebildetes U-förmiges Profil als Längskörper ausgebildete Stabilisierungselemente 9 eingebracht sind (nicht sichtbar in der Abbildung). Das Tauchrohr 1 führt den von unten eintretenden Gasstrom, aus dem ggf. bis auf Feinstpartikel die Festkörperteilchen abgesondert sind, aus dem Zyklon nach oben aus. Das Tauchrohr 1 aus Figur 1 ist in Figur 2 in Aufsicht dargestellt.In FIG. 1 an embodiment of the dip tube 1 according to the invention is shown in side view. The cylindrical wall 2 of the dip tube 1 consists of interconnected, annular rows, which in turn are composed of the same shape and preferably made of heat-resistant steel castings segments 3. At the upper edge of the dip tube 1 opens into an upwardly leading gas discharge line 4 (shown schematically in the approach), wherein on the wall of the gas discharge line 4 suspension body 5 are screwed. These suspension bodies 5 are arranged annularly over the entire circumference, wherein in Fig. 1 only the two suspension body 5 are shown on the left and right at the top. The suspension bodies 5 are mounted on a web welded to the gas discharge line 4 or on the cyclone separator cover 6. With the top row of segments 3 of the wall 2 suspension segments 7 are connected, each suspension segment 7 is suspended on a suspension body 5, whereby the entire dip tube 1 undergoes a suspension. The lower edge of the dip tube 1 is stabilized by a series of end segments 8, in which formed at the lower end of the U-shaped profile formed as a longitudinal body stabilizing elements 9 are introduced (not visible in the figure). The dip tube 1 leads the gas stream entering from below, from which the solid particles are optionally separated except for ultrafine particles, from the cyclone upwards. The dip tube 1 off FIG. 1 is in FIG. 2 shown in supervision.

In Figur 3 stellt ein an einer Stelle des Umfanges des Tauchrohres 1 durchgeführter Vertikalschnitt schematisch die Aufhängungsabfolge der Bestandteile des Tauchrohres 1 dar. Am oberen Rand ist das Aufhängungssegment 7 an dem Aufhängungskörper 5 aufgehängt, wobei der Aufhängungskörper 5 auf einem an der Gasabzugsleitung 4 angeschweißten Steg bzw. auf der Zyklonabscheiderdecke 6 mit einer Schraube 10 an der Wandung der Gasabzugsleitung 4 lösbar befestigt ist. Die Aufhängung des Aufhängungssegmentes 7 erfolgt mittels des an seinem oberen Ende ausgebildeten Profils eines Hakens 11 an dem quaderförmigen Abschnitt 12 des Aufhängungskörpers 5, wobei der quaderförmige Abschnitt 12 in einen nach unten rückspringenden Abschnitt 13 des Aufhängungskörpers 5 übergeht. In anderen Ausführungsbeispielen kann der quaderförmige Abschnitt 12 auch in anderen Formen gestaltet werden. In hängender Verbindung schließen sich an das Aufhängungssegment 7 im Ausführungsbeispiel sechs Segmente 3 der Wandung 2 an. Diese Segmente 3 überlappen sich aufgrund ihres abgeflachten, in etwa S-förmigen Profils und sind ineinander eingehakt, wobei die angrenzenden Segmente 3 zueinander benachbarter Reihen gegeneinander versetzt sind (vgl. Figur 1 ). Der untere Abschluss wird gebildet von einem Abschlusssegment 8, in dessen an seinem unteren Ende befindliches U-Profil 14 ein Stück eines Stabilisierungselementes 9 eingepasst ist.In FIG. 3 a performed at one point of the circumference of the dip tube 1 vertical section schematically represents the suspension sequence of the components of the dip tube 1. At the top of the suspension segment 7 is suspended from the suspension body 5, wherein the suspension body 5 on a welded to the gas discharge line 4 web or on the Zyklonabscheiderdecke 6 with a screw 10 on the wall of the gas discharge line 4 is releasably attached. The suspension of the suspension segment 7 takes place by means of its upper end formed profile of a hook 11 on the cuboid portion 12 of the suspension body 5, wherein the cuboid portion 12 merges into a downwardly recessed portion 13 of the suspension body 5. In other embodiments, the parallelepiped portion 12 may be configured in other shapes. In a suspended connection, six segments 3 of the wall 2 adjoin the suspension segment 7 in the exemplary embodiment. These segments 3 overlap due to their flattened, approximately S-shaped profile and are hooked into each other, wherein the adjacent segments 3 mutually adjacent rows are offset from each other (see. FIG. 1 ). The lower end is formed by a terminating segment 8, in the U-profile 14 located at its lower end, a piece of a stabilizing element 9 is fitted.

In den Figuren 4 . 1 bis 4.3 ist ein Aufhängungssegment 7 in Ansicht von oben (4.1), in Ansicht auf dessen vom Inneren des Tauchrohres 1 abgewandten Außenseite (4.2) und in Seitenansicht (4.3) dargestellt. Die Ansicht von oben zeigt die gewölbte Form, die das Aufhängungssegment 7 entsprechend der Zylinderform des Tauchrohres 1 aufweist. Das Aufhängungssegment 7 weist einen plattenartigen Grundkörper 15 auf, an dessen oberem Ende durch doppelte Winkelbildung ein U-förmiges Profil gebildet ist, das als Haken 11 für die Aufhängung dient. In seinem unteren Bereich weist das Aufhängungssegment 7 für die Verbindung mit den Segmenten 3 der obersten Reihe zwei schlitzförmige, horizontale und zum Rand hin offene Aussparungen 16 auf. Die auf der Innenseite vorgesehenen Ansatzelemente 17 sind Teil der erfindungsgemäßen Konstruktion, die ein Herausgleiten des eingehängten Segmentes 3 aus der jeweiligen Aussparung 16 verhindert.In the FIGS. 4 , 1 to 4.3 is a suspension segment 7 in top view (4.1), in view of its facing away from the interior of the dip tube 1 outside (4.2) and in side view (4.3). The view from above shows the curved shape having the suspension segment 7 corresponding to the cylindrical shape of the dip tube 1. The suspension segment 7 has a plate-like base body 15, at its upper end by double angle forming a U-shaped profile is formed, which serves as a hook 11 for the suspension. In its lower region, the suspension segment 7 for connection to the segments 3 of the top row on two slot-shaped, horizontal and open towards the edge recesses 16. The provided on the inside approach elements 17 are part of the construction according to the invention, which prevents slipping out of the hinged segment 3 from the respective recess 16.

In den Figuren 5 . 1 bis 5.3 ist ein Segment 3 der Wandung 2 in Ansicht von oben (5.1), in Ansicht auf dessen vom Inneren des Tauchrohres 1 abgewandten Außenseite (5.2) und in Seitenansicht (5.3) dargestellt. In der Aufsicht ist die gewölbte Form in horizontaler Richtung, in der Seitenansicht die abgeflachte, in etwa S-Form des plattenartigen Grundkörpers 15 des Segmentes 3 ersichtlich. Im unteren Bereich entspricht die Gestaltung des Segmentes 3 der bereits erläuterten Gestaltung des unteren Bereiches eines Aufhängungssegmentes 7. In der Mitte des oberen Randbereiches weist das Segment 3 einen zur Innenseite hin rechtwinklig vorspringenden Plattenabschnitt 18 auf. An dessen zur Innenseite hin gelegenen zwei Ecken weist der Plattenabschnitt 18 jeweils ein rechtwinklig nach oben geführtes, flaches Vorsprungselement 19 auf. Die Abmaße der Segmente 3 sind so gewählt, dass ein Segment 3 mit jeweils der Hälfte seines Plattenabschnittes 18 in die aneinandergrenzenden Aussparungen 16 der angrenzenden, in der Reihe darüber befindlichen Segmente 3 (bzw. Abschlusssegmente 8) eingepasst werden kann. Dabei greifen zur Erhöhung der Verbindungsstabilität die Vorsprungselemente 19 mit Flächenkontakt auf der Innenseite hinter den Grundkörper 15 des jeweiligen darüber liegenden Segmentes 3 (bzw. Abschlusssegmentes 8). In der Verbindung sind die Vorsprungselemente in Richtung nach innen direkt neben den jeweiligen Ansatzelementen 17 positioniert, so dass ein seitliches Herausgleiten aus den Aussparungen 16 auch bei großer Krafteinwirkung blockiert wird. Durch Kontakt korrespondierender Ansatzelemente 17 zweier in einer Reihe benachbarter Segmente 3 wird eine zusätzliche Stützung gegeben. Auf diese Weise werden die Segmente 3 mit hoher Verbindungssteifigkeit so miteinander verbunden, dass das Tauchrohr große Formstabilität erhält.In the Figures 5 , 1 to 5.3 is a segment 3 of the wall 2 in top view (5.1), in view of the interior of the dip tube 1 facing away from the outside (5.2) and in side view (5.3). In the top view, the arched shape is in the horizontal direction, in the side view the flattened, approximately S-shape of the plate-like body 15 of the segment 3 can be seen. In the lower region, the design of the segment 3 corresponds to the design of the lower region of a suspension segment 7 already explained. In the middle of the upper edge region, the segment 3 has a plate section 18 projecting at right angles to the inner side. At its two corners located toward the inside, the plate section 18 has a flat projecting element 19 guided at right angles to the top. The dimensions of the segments 3 are chosen so that a segment 3, each with half of its plate portion 18 in the adjacent recesses 16 of the adjacent, in the row overlying segments 3 (or end segments 8) can be fitted. To increase the stability of the connection, the projection elements 19 engage with surface contact on the inside behind the main body 15 of the respective overlying segment 3 (or end segment 8). In the connection, the protrusion elements are positioned in the inward direction directly adjacent to the respective attachment elements 17, so that lateral sliding out of the recesses 16 is blocked even with a large force. By contact corresponding projection elements 17 of two in a series of adjacent segments 3, an additional support is given. In this way, the segments 3 are connected to each other with high connection stiffness so that the dip tube obtains great dimensional stability.

In den Figuren 6 . 1 bis 6.3 ist ein Abschlusssegment 8 in Ansicht von oben (6.1), in Ansicht auf dessen vom Inneren des Tauchrohres 1 abgewandten Außenseite (6.2) und in Seitenansicht (6.3) dargestellt. Die Gestaltung des oberen Teils des Abschlusssegmentes 8 entspricht der Gestaltung des oberen Teils eines Segmentes 3 der Wandung 2, so dass das Abschlusssegment 8 in die unterste Reihe der Segmente 3 eingehängt werden kann. Im unteren Bereich weist jedes Abschlusssegment 8 zur Innenseite hin ein nach oben offenes U-Profil 14 auf. Die beiden Schenkel (Flansche) des U-Profils 14 sind dabei durch zwei Stege 20 miteinander verbunden.In the FIGS. 6 , 1 to 6.3 is a terminating segment 8 in top view (6.1), in view of the interior of the dip tube 1 side facing away from the outside (6.2) and in side view (6.3). The design of the upper part of the end segment 8 corresponds to the design of the upper part of a segment 3 of the wall 2, so that the end segment 8 can be suspended in the bottom row of the segments 3. In the lower area, each end segment 8 has an upwardly open U-profile 14 towards the inside. The two legs (flanges) of the U-profile 14 are connected by two webs 20 with each other.

In das von den Abschlusssegmenten 8 gebildete, sich ringförmig um den Umfang erstreckende zusammenhängende U-Profil 14 sind zur Formstabilisierung des Tauchrohres 1 passende, längsgestreckte Stabilisierungselemente 9 eingebracht. Ein solches Stabilisierungselement 9 ist in den Figuren 7 . 1 (Ansicht von oben), 7.2 (Ansicht auf die Längsseite) und 7.3 (Ansicht auf die Querseite) dargestellt. In dem u.a. aus Montagegründen bevorzugten und hier abgebildeten Fall ist ein Stabilisierungselement 9 für je zwei benachbarte Abschlusssegmente 8 vorgesehen. An seiner Unterseite sind Stabilisierungselementaussparungen 21 derart vorgesehen, dass jede Aussparung 21 je einen Steg 20 der beiden benachbarten Abschlusssegmente 21 von oben umgreifen kann und durch die damit gegebene Klemm- bzw. Keilwirkung einen verbindungssteifen und formstabilen unteren Abschluss des Tauchrohres 1 herstellt.In the formed by the end segments 8, annularly extending around the circumference contiguous U-profile 14 1, longitudinally elongated stabilizing elements 9 are introduced for stabilizing the form of the dip tube. Such a stabilizing element 9 is in the FIGS. 7 , 1 (Top view), 7.2 (view on the long side) and 7.3 (view on the lateral side). In the case preferred among other things for assembly reasons and illustrated here, a stabilizing element 9 is provided for every two adjacent end segments 8. Stabilizing element recesses 21 are provided on its underside in such a way that each recess 21 can embrace one web 20 each of the two adjacent end segments 21 from above and produces a connection-resistant and dimensionally stable lower end of the immersion tube 1 by the clamping or wedging action given thereby.

Figur 8 zeigt einen Aufhängungskörper 5 in Schrägansicht. Wie oben beschrieben, weist er einen in etwa quaderförmigen Abschnitt 12 auf. Damit an diesen quaderförmigen Abschnitt 12 der Haken 11 des korrespondierenden Aufhängungssegmentes 7 angehängt werden kann, wird der weitere Teil des Aufhängungskörpers 5 von einem nach unten stufenartig oder, wie abgebildet und aus statischen Gründen bevorzugt, kontinuierlich nach unten rückspringenden Abschnitt 13 gebildet. Dieser führt den Aufhängungskörper 5 bis zu einem festen Konstruktionselement, insbesondere die Wandung der Gasabzugsleitung 4, an der der Aufhängungskörper 5 mit mindestens einer eingesenkten Schraube 10 lösbar verschraubt werden kann. Die Aufhängungskörper 5 sind bevorzugt aus feuerfestem Werkstoff mit hoher Druckfestigkeit zu fertigen, so dass auf besondere Kühlungsmaßnahmen verzichtet werden kann. FIG. 8 shows a suspension body 5 in an oblique view. As described above, it has an approximately cuboidal portion 12. In order for the hook 11 of the corresponding suspension segment 7 to be attached to this parallelepiped-shaped section 12, the further part of the suspension body 5 is formed by a step 13 which is stepped downwards or, as shown and for reasons of static preference, continuously downwardly recessed. This leads the suspension body 5 to a solid construction element, in particular the wall of the gas discharge line 4, to which the suspension body 5 with at least one recessed screw 10 can be releasably screwed. The suspension body 5 are preferably made of refractory material with high compressive strength, so that can be dispensed with special cooling measures.

Durch die im Ausführungsbeispiel dargestellte, aus drei Anteilen kombinierte Konstruktion des Tauchrohres 1 - bestehend aus erstens den erläuterten Segmenten 3 der Wandung 2 mit ihren erfindungsgemäßen Verbindungsvorrichtungen, zweitens aus den erfindungsgemäßen Aufhängungskomponenten 5, 7 und drittens aus den Abschlusskomponenten 8, 9 - wird ein Tauchrohr 1 angegeben, das (bei Verwendung der genannten Werkstoffe) auch für die extremen thermischen und mechanisch dynamischen Beanspruchungen, die etwa bei in der Zementindustrie eingesetzten Zyklonabscheidern herrschen, geeignet ist und dabei einen wirtschaftlich günstigen Betrieb ermöglicht. BEZUGSZEICHENLISTE 1 Tauchrohr 12 quaderförmiger Abschnitt 2 Wandung 13 rückspringender Abschnitt 3 Segment (Wandung) 14 U-Profil (Abschlusssegment) 4 Gasabzugsleitung 15 Grundkörper 5 Aufhängungskörper 16 Aussparung 6 Zyklonabscheiderdecke 17 Ansatzelement 7 Aufhängungssegment 18 Plattenabschnitt 8 Abschlusssegment 19 Vorsprungselement 9 Stabilisierungselement 20 Steg 10 Schraube 21 Stabilisierungselementaussparung 11 Haken By the illustrated in the exemplary embodiment, combined from three parts construction of the dip tube 1 - consisting firstly of the explained segments 3 of the wall 2 with their connecting devices according to the invention, secondly from the suspension components 5, 7 according to the invention and thirdly from the final components 8, 9 - is a dip tube 1 indicated which (when using the materials mentioned) is also suitable for the extreme thermal and mechanical dynamic stresses that prevail, for example, in cyclone separators used in the cement industry, and thereby enables economically favorable operation. <I> LIST OF REFERENCES </ i> 1 dip tube 12 cuboid section 2 wall 13 receding section 3 Segment (wall) 14 U-profile (end segment) 4 Gas vent line 15 body 5 suspension body 16 recess 6 Zyklonabscheiderdecke 17 neck element 7 suspension segment 18 plate section 8th Statements segment 19 projection member 9 stabilizing element 20 web 10 screw 21 Stabilizing element recess 11 hook

Claims (7)

  1. Immersion pipe (1) for conducting a gas stream out of a cyclone separator, having
    - a cylindrical wall (2) assembled from individual segments (3) of identical form, wherein the segments (3) are arranged in at least two rows which are arranged one underneath the other and which extend in each case in ring-shaped fashion around the circumference of the immersion pipe (1),
    - a suspension device, which is arranged at the upper end of the immersion pipe (1) and which is formed from suspension components (5, 7) and which extends in ring-shaped fashion around the circumference of the immersion pipe (1) and which serves for the suspension of the immersion pipe (1), and
    - a ring-shaped lower edge which is arranged at the lower end of the immersion pipe (1) and which is formed from termination components (8, 9) and which serves for increasing the dimensional stability of the immersion pipe (1),
    wherein
    - adjacent segments (3) of a row adjoin one another in a flush manner, and the segments (3) of two adjacent rows are arranged offset with respect to one another,
    - each segment (3) has a plate-like main body (15), wherein the plate-like main body (15) (in an upright position)
    - has, in its horizontal extent, a curvature corresponding to the cylindrical shape of the wall (2), and
    - has, in the vertical section performed in a radial direction, an approximately S-shaped form which is flattened at the ends, such that an overlap of the lower main body section of a segment (3) of one row with the upper sections of the adjoining segments (3) of the row situated therebelow is possible,
    - each segment (3) has, in its lower section, two horizontal recesses (16) which run at the same height, which are arranged symmetrically with respect to one another, which are of slot-like form and which are open toward the respective margin of the main body (15),
    - each segment (3) has, in the central region of the upper margin of the main body (15), on the inner side situated toward the interior region of the immersion pipe (1), a plate section (18) which projects approximately at right angles with respect to the main body (15), wherein the plate section (18) has, in the region of its edge situated toward the interior region of the immersion pipe (1), in the outer sections of said edge, in each case one substantially cuboidal, flat projection element (19) which leads upward approximately at right angles, in such a way that
    - the projecting plate section (18) of each segment (3) of one row can, in order to produce a segment connection, be fitted in each case over half of its extent into in each case one recess (16) of the two respectively adjoining segments (3) of the row situated thereabove, and
    - in the case of such a segment connection, the projection elements (19) of the lower segment (3) engage areally, and with a spacing to the open margin of the respective recess (16), on the inner side behind the main bodies (15) of the respective segments (3) of the row situated thereabove, and in that
    - each segment (3) has, on the inner side, above each of the two recesses (16), in the marginal region of the main body (15), in each case at least one perpendicularly inwardly protruding, approximately cuboidal extension element (17), such that, when a segment connection exists, the extension element (17), by means of a blocking action on the respective projection element (19), prevents the projecting plate section (18) of an adjoining segment (3) situated in the row therebelow from laterally sliding out of the recess (16).
  2. Immersion pipe (1) according to Claim 1,
    characterized in that
    the at least two extension elements (17) on the inner side of each segment (3) are arranged at the respective margin such that areal contact, for the dimensional stabilization of the immersion pipe (1), is realized between the corresponding extension elements (17) of two segments (3) which are adjacent in one row.
  3. Immersion pipe (1) according to either of Claims 1 and 2,
    characterized in that
    the segments (3) are manufactured from heat-resistant cast steel.
  4. Immersion pipe (1) according to one of Claims 1 to 3,
    characterized in that
    the size of each segment (3) is dimensioned such that the weight of the segment (3) does not exceed 60 kg, preferably 25 kg, even more preferably 10 kg, such that the segment (3) is of ergonomic design.
  5. Immersion pipe (1) according to one of Claims 1 to 4,
    characterized in that
    a first fraction of the termination components (8, 9) are formed by termination segments (8) arranged in ring-shaped fashion around the circumference at the lower end of the immersion pipe (1), and a second fraction of the termination components (8, 9) are formed by stabilizing elements (9) which connect the termination segments (8) to one another, wherein
    - each termination segment (8) (in an upright position) is, in its upper section, of the same design as the corresponding upper section of a segment (3) of the wall (2) of the immersion pipe (1), such that the termination segment (8) engages by means of a projecting plate section (18) and two projection elements (19) into the recesses (16) of in each case two adjoining segments (3) arranged in the lowermost segment row of the wall (2) in order to produce a connection,
    - the lower part of each termination segment (8) is composed of a plate-like main body (15) which, toward the inner side, by means of a doubly angled configuration, has an upwardly open U-shaped profile (14), wherein the two upwardly pointing flanges of the U-shaped profile (14) are additionally connected to one another by means of at least two webs (20), and
    - the stabilizing elements (9) have an elongate form with recesses (21) at the underside, such that, along the entire circumference of the immersion pipe (1), in each case multiple, preferably in each case two, adjacent termination segments (8) are rigidly connected to one another by virtue of a stabilizing element (9) being inserted into the continuous U-shaped profile (14) of said termination segments (8), wherein the recesses (21) of each stabilizing element (9) engage around webs (20) of multiple termination segments (8), preferably in each case one web (20) of two adjacent termination segments (8), from above.
  6. Immersion pipe (1) according to one of Claims 1 to 5,
    characterized in that
    each suspension component (5, 7) is composed of a suspension segment (7) and of a suspension body (5), wherein
    - each suspension segment (7) is arranged offset with respect to the segments (3) of the uppermost row of the wall (2) of the immersion pipe (1) and (in an upright position) is, in its lower section, of the same design as the corresponding lower section of a segment (3) of the wall (2), such that the projecting plate sections (18) of the in each case two adjoining segments (3) of the uppermost row engage into the recesses (16) of the suspension segment (7) and, at the projection elements (19), are prevented by the extension elements (17) of the suspension segment (7) from sliding out laterally,
    - the upper part of each suspension segment (7) is composed of a plate-like main body (15) which, toward the outer side, by means of a doubly angled configuration, has a downwardly open U-shaped profile which forms a hook (11), and
    - each suspension body (5) is arranged, so as to adjoin the upper margin of the immersion pipe (1), on a web which is arranged on a gas take-off line (4) which conducts the gas stream away upward, and each suspension body is of such a form that
    - the corresponding suspension segment (7) can be suspended with its hook (11) on a suitably shaped, in particular approximately cuboidal section (12) of the suspension body (5),
    - a section (13), which is set back in a downward direction in stepped or continuous fashion, of the suspension body (5) leads outwardly from the suitably shaped, in particular approximately cuboidal section (12) as far as a fixed structural element of the cyclone separator, preferably the wall of the gas take-off line (4), and
    - the suspension body (5) is screwed to the fixed structural element of the cyclone separator, preferably the wall of the gas take-off line (4).
  7. Immersion pipe (1) according to Claim 6,
    characterized in that
    the suspension bodies (5) are manufactured from a fireproof material with high compressive strength.
EP15820113.7A 2014-12-23 2015-12-18 Immersion pipe for a cyclone separator Active EP3237116B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL15820113T PL3237116T3 (en) 2014-12-23 2015-12-18 Immersion pipe for a cyclone separator
HRP20181928TT HRP20181928T1 (en) 2014-12-23 2018-11-19 Immersion pipe for a cyclone separator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014019472.8A DE102014019472B4 (en) 2014-12-23 2014-12-23 Immersion tube for a cyclone separator
PCT/EP2015/080500 WO2016102369A1 (en) 2014-12-23 2015-12-18 Immersion pipe for a cyclone separator

Publications (2)

Publication Number Publication Date
EP3237116A1 EP3237116A1 (en) 2017-11-01
EP3237116B1 true EP3237116B1 (en) 2018-08-22

Family

ID=55069839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15820113.7A Active EP3237116B1 (en) 2014-12-23 2015-12-18 Immersion pipe for a cyclone separator

Country Status (8)

Country Link
EP (1) EP3237116B1 (en)
CN (1) CN107206401B (en)
DE (1) DE102014019472B4 (en)
DK (1) DK3237116T3 (en)
HR (1) HRP20181928T1 (en)
PL (1) PL3237116T3 (en)
RU (1) RU2664100C1 (en)
WO (1) WO2016102369A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018167586A1 (en) * 2017-03-11 2018-09-20 Mofazali Abbas Fabrication of immersion tube with shackle for cement rotary kiln
BR112021022399A2 (en) * 2019-05-31 2021-12-28 Saint Gobain Ct Recherches Cyclone preheater vortex detector for cement industry based on sintered silicon carbide

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3228902A1 (en) * 1982-08-03 1984-02-09 Klöckner-Humboldt-Deutz AG, 5000 Köln CYCLONE SEPARATOR
DK205583A (en) * 1983-05-09 1984-11-10 Hasle Klinker & Chamott CENTRAL ROOMS FOR CYCLON TO CLEAN HOT GAS
DE4009004A1 (en) * 1990-03-21 1991-09-26 Didier Werke Ag SUBMERSIBLE TUBE AND METHOD FOR THE PRODUCTION THEREOF
DE4236895A1 (en) * 1992-10-31 1994-05-05 Maury Hans Dietmar Dip tube for a centrifugal separator (cyclone)
DE19825206A1 (en) * 1998-06-05 1999-12-09 Kloeckner Humboldt Wedag Cyclone separator
JP3897508B2 (en) * 2000-03-23 2007-03-28 三菱重工業株式会社 Circulating fluidized bed furnace
EP1153662B1 (en) * 2000-05-12 2004-07-14 KHD Humboldt Wedag AG Heat- and wear stressed mounting element, in particular segment for cyclon vortex finder
GB2416721B (en) * 2004-07-29 2007-07-11 Dyson Ltd Separating apparatus
JP4980593B2 (en) * 2005-08-02 2012-07-18 大平洋特殊鋳造株式会社 Cyclone inner cylinder of suspension preheater
DK176211B1 (en) * 2006-03-24 2007-02-05 Smidth As F L Cyclone separator e.g. for use in cement manufacture, has annular disc in supporting element arranged between cyclone housing and discharge duct, forming clearance between housing and duct and disc
CN101385997A (en) * 2007-09-13 2009-03-18 乐金电子(天津)电器有限公司 Exhausting equipment of cyclone separating device
US8882873B2 (en) * 2011-02-14 2014-11-11 David Brownlee Vortex finder for cyclone separator
CH705518A2 (en) * 2011-09-02 2013-03-15 Mertec Ag Immersion pipe- or immersion pipe-segments are provided with structural upper surfaces, where upper surfaces have honeycomb structure which are formed as bag or rib structure and are directly manufactured from metal casting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2016102369A1 (en) 2016-06-30
DE102014019472A1 (en) 2016-06-23
CN107206401A (en) 2017-09-26
PL3237116T3 (en) 2019-02-28
CN107206401B (en) 2019-08-06
DE102014019472B4 (en) 2018-01-04
DK3237116T3 (en) 2018-12-10
EP3237116A1 (en) 2017-11-01
RU2664100C1 (en) 2018-08-15
HRP20181928T1 (en) 2019-03-08

Similar Documents

Publication Publication Date Title
EP0962255B1 (en) Cyclone separator
DE3490239C2 (en)
DE212007000104U1 (en) Tiltable converter
EP3237116B1 (en) Immersion pipe for a cyclone separator
AT509202B1 (en) TILT CONVERTER
EP3081655B1 (en) Barrier for reducing the dust emissions for a cooler for cooling warm bulk material
AT514809B1 (en) Under the ceiling, which has a support profile and hinged panels
DE602006000598T2 (en) casting tube
EP3918262A1 (en) Tower structure of a pre-heating tower of a plant for thermally processing minerals, and method for constructing the pre-heating tower
DE102013210232A1 (en) Lattice girder with partially oppositely inclined struts
DE2335162C3 (en) Electric arc furnace for melting metals
DE102008051015A1 (en) stop bracket
DE102020132355A1 (en) High temperature tray carrier and high temperature batch carrier
DE102010036587A1 (en) Hanging wall for deflecting hot gases in calcium carbonate burning furnace, has recesses provided for fastening of wall elements and area of refractory material, where fixed weight of material does not exceed strength of material of holders
EP0447802A2 (en) Vortex finder and method of manufacturing same
EP1844283B1 (en) Multi-stage heat exchanger and cyclone separator for use in such a heat exchanger
AT515421B1 (en) Apparatus for preheating cement raw meal for cement clinker production
BE1027848B1 (en) Tower structure of a preheating tower of a plant for the thermal processing of minerals and method for erecting the preheating tower
DE10143396C1 (en) Baffle pot used for casting molten metal comprises a base and a peripheral wall which delimits a chamber and a feed opening for a molten metal lying opposite the base
EP3250855A1 (en) Air feed-in device for a combustion furnace
DE10133973A1 (en) Device and method for forming a grate floor consisting of lamellar bodies which are positively connected to one another
DE102019219499A1 (en) Tower structure of a preheating tower of a plant for the thermal processing of minerals and method for erecting the preheating tower
WO2021083797A1 (en) Grate bar for stepped grate
DE102020203289A1 (en) Cooler for cooling bulk goods, in particular cement clinker
DE102018130894A1 (en) Grate bar and grate from such grate bars

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20170619

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20180410

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1031846

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180915

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502015005603

Country of ref document: DE

REG Reference to a national code

Ref country code: RO

Ref legal event code: EPE

Ref country code: HR

Ref legal event code: TUEP

Ref document number: P20181928

Country of ref document: HR

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20181203

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20181928

Country of ref document: HR

Payment date: 20181204

Year of fee payment: 4

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20180822

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181122

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181123

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181122

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20181222

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

REG Reference to a national code

Ref country code: HR

Ref legal event code: T1PR

Ref document number: P20181928

Country of ref document: HR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502015005603

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181218

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20181231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20181231

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20181928

Country of ref document: HR

Payment date: 20191203

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20151218

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180822

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20180822

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20181928

Country of ref document: HR

Payment date: 20201214

Year of fee payment: 6

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20181928

Country of ref document: HR

Payment date: 20211216

Year of fee payment: 7

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20181928

Country of ref document: HR

Payment date: 20230221

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502015005603

Country of ref document: DE

Owner name: KHD HUMBOLDT WEDAG GMBH, DE

Free format text: FORMER OWNER: KHD HUMBOLDT WEDAG GMBH, 51067 KOELN, DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230627

REG Reference to a national code

Ref country code: HR

Ref legal event code: ODRP

Ref document number: P20181928

Country of ref document: HR

Payment date: 20231207

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231220

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: RO

Payment date: 20231212

Year of fee payment: 9

Ref country code: HR

Payment date: 20231207

Year of fee payment: 9

Ref country code: FR

Payment date: 20231221

Year of fee payment: 9

Ref country code: DK

Payment date: 20231227

Year of fee payment: 9

Ref country code: AT

Payment date: 20231221

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20231211

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240223

Year of fee payment: 9

Ref country code: CH

Payment date: 20240102

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20231217

Year of fee payment: 9