EP1112947B1 - Vorrichtung zur Anordnung von Heissbranddüsen oder Expansionsleitdüsen in Durchgangsöffnungen von Reaktionskammern, wie Wärmetauschern für die Zementherstellung - Google Patents
Vorrichtung zur Anordnung von Heissbranddüsen oder Expansionsleitdüsen in Durchgangsöffnungen von Reaktionskammern, wie Wärmetauschern für die Zementherstellung Download PDFInfo
- Publication number
- EP1112947B1 EP1112947B1 EP00127712A EP00127712A EP1112947B1 EP 1112947 B1 EP1112947 B1 EP 1112947B1 EP 00127712 A EP00127712 A EP 00127712A EP 00127712 A EP00127712 A EP 00127712A EP 1112947 B1 EP1112947 B1 EP 1112947B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- receiving box
- shaped brick
- wall
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/0003—Linings or walls
- F27D1/0023—Linings or walls comprising expansion joints or means to restrain expansion due to thermic flows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/14—Supports for linings
- F27D1/145—Assembling elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
Definitions
- the invention relates to a device according to the preamble of patent claim 1.
- Such known devices such as EP 0 555 725 or DE-C 38 41 381, have an in a molded stone embedded nozzle, which in a through opening of a reaction chamber used and attached to the wall of the reaction chamber via an exchange box, within which the hot fire nozzle or expansion nozzle is detachably received via a mounting flange, so that the nozzle can be replaced with a new nozzle in the event of damage.
- the nozzle and the molded stone, which are located inside the furnace extend and in particular are arranged approximately flush with the inner surface of the furnace wall, must be exchanged together. There are significant wear problems as the atmosphere inside the furnace must be described as extremely aggressive.
- Such a wear-related Exchange of nozzle and molded stone is with a corresponding material and Labor involved. It is also known to use the front portion of the nozzle To arrange distance to the inside of the furnace wall, but is in this known device the overall structure is complex because the nozzle within a multi-part structure is made of enveloping stone and nozzle stone and engaging a receiving box in the enveloping stone is provided, which not only complicates the manufacture and installation but also difficulties with a possible replacement of components of the device are to be expected.
- the object of the invention is to provide a device which is not only easy to assemble but also includes a wear-reducing arrangement or receptacle of the nozzle and in particular allows a quick replacement of a destroyed nozzle.
- a shaped stone is placed in front of the receiving box for protection, which in particular via fastening anchors on the end face of the receiving box attached and is mainly releasably attached. It is also inside the storage box the nozzle detachably added so that it can be exchanged for another nozzle if necessary can be. Furthermore, the nozzle is arranged within the receiving box in such a way that the front nozzle section at a distance from that preferably with the adjacent The inner wall is flush with the inside end face of the shaped block and thus also with respect the inner surface or the interior of the furnace is arranged, which is advantageous for is the wear reduction.
- the preformed stone is a prefabricated element what has the advantage that the molded block specifically within a plant to the application needs can be prefabricated and thus the molded block designed for optimal operating conditions is. In the case of such shaped stones, it is important that they have an exact composition between dry matter and water must be ensured to during operation to avoid that the molded block is prone to wear, especially porous.
- the molded block and the receiving box via an expansion joint opposite the inner wall the passage opening of the reaction chamber arranged which is manufacturing technology expediently takes place in that after fastening the receiving box to the Portions of the outer wall of the reaction chamber set in the through opening
- Apply a suitable coat of thick paint to the molded block and the receiving box or one Fireproof felt fabric is handled in the manner of a mat, with thick paint and Felt fabrics can decompose more or less during operation.
- the front nozzle section within the shaped block with an annular gap opposite the inner shell of the shaped block is arranged, wherein the annular gap through a packing can be bridged. This not only makes it easier to insert the nozzle a possible exchange but also the removal of the nozzle.
- the transfer of vibrations caused by the operation of the air blast device on the others Components reduced.
- the device stands out characterized in that the parts can be assembled and disassembled very easily, the The receiving box and the nozzle are largely protected and therefore the service life is essential is longer than in known devices and also largely the surrounding furnace wall is kept vibration-free.
- the molded block is expediently in one piece, which favors simple assembly. Further is the receptacle box on the shaped stone appropriate via a screw connection or another releasable connection, such as a clamp connection, attached so that the receiving box can be removed from the stone. All you need to take out the nozzle the cover plate can be removed, with which the nozzle is then also lifted becomes. If the nozzle is stuck, the screw connection between the nozzle and Cover plate can be solved and then the cover plate can be removed and finally the nozzle can be removed. Also the removal of the shaped stone, even if this as a result furnace operation is stuck due to mass to be added, can be easily carried out, which in turn is favored by the expansion joint.
- the one according to the invention is also expedient Design of the nozzle, which tapers conically on the one hand and then in parallel walls runs out on the inside of the furnace and on average perpendicular to it over a small opening angle expands what offers fluidic advantages.
- Figure 1 shows a receiving box 1, which is preferably made of sheet steel or cast can be and preferably from the outside in a through opening 2 of the wall 3 a reaction chamber is inserted and arranged.
- the outer shell of the receiving box 1 is adapted to the geometry of the through opening, mostly either rectangular or round.
- the receiving box 1 has a circumferential internally drawn shoulder 4, which forms the inside end face of the receiving box 1.
- the receiving box 1 is preceded by a shaped block designated 5, which in its Outer contour as well as the receiving box 1 adapted to the contour of the through opening is.
- the shaped block 5 is a prefabricated part and made of a refractory mass or ceramic mass.
- fastening anchors in the molded block 6 embedded which protrude from the outside of the molded block and as a connecting bolt for attachment to the receiving box 1, here by a screw connection, serve, the screw nut is designated 7.
- the screw nut is designated 7.
- at least two screw anchors 6 are provided.
- a screw connection can also be another suitable detachable connection, in particular a clamp connection be provided.
- a welded connection would also be possible, in which case however, to remove the receiving box 1 the connection must be destroyed by an abrasive witch or the like.
- the receiving box 1 On the outside, that is, outside the wall 3 of the reaction chamber, the receiving box 1 depending on the outwardly drawn mounting flange 8, on which one designated 9 Cover plate is attached, here by screw connections 10 distributed over the circumference.
- the cover plate 9 in turn carries a tube 10 with an end arranged Connection flange 11, which is used to attach the air blast device, which is useful again by means of screw connections not shown here.
- the cover plate 9, the Tube 10 and the connecting flange 11 can be welded or cast Execution be made.
- On the cover plate 9 is in turn detachable, that is interchangeable, the hot fire nozzle or expansion nozzle 12 attached and that in the here shown Embodiment again via a screw connection, which can be seen in Figure 2 and is given the reference number 13.
- the Attachment of the hot fire nozzle provided two flange-like tabs 14 projecting outwards, however, a circumferential flange or the like is also provided can be.
- the receiving box 1 is via a mounting flange 15, here as a flat iron frame formed, preferably attached by welding, the outer wall through here a steel wall 16 is formed. In the case of a flat iron frame, this is also with the Receptacle box 1 welded.
- the shaped block 5 which is a prefabricated molded part made of refractory material, for example Silicon carbide material or ceramic material is preferably formed in one piece, however, the shaped stone 5 can expediently also be made up of several parts be, for example, from an upper part and a lower part or four side parts be formed in the case of a rectangular design of the shaped block, the side parts form the four rectangular walls.
- the nozzle is with its front Section 17 opposite the end face 18 flush with the inside of the furnace wall 3 offset towards the rear so that the front of the nozzle is subject to wear is protected.
- the front section 17 of the nozzle 12 at a certain circumferential distance from the inner wall of the shaped block 5 is arranged, the annular gap being provided with the reference number 19.
- This ring gap is preferably bridged over a seal pack 20, but only in FIG. 1 is shown.
- the nozzle which is suitably made of a wear-resistant metal alloy is, there is no connection with the shaped stone, so that they are easily excavated can.
- a seal packing could also be dispensed with, because during of the operation material accumulates within the annular gap 19 and builds this up. however the ring game 19 ensures advantages when removing the nozzle 12, since this despite baking of material within the annular gap 19 easily excavated to the outside can be. If a packing 20 is missing, bulk goods would only be in the rear located chamber 21 of the receiving box discharged and could be removed the nozzle can be easily removed after unscrewing the cover plate 9, so that then the nozzle 12 can be removed.
- the between molded block 5, receiving box 1 and the inner wall of the through opening 2 provided expansion joint, which is also an annular gap is designated by the reference numeral 21 '.
- the receiving box 1 is first over the mounting flange 15 attached to the outside of the reaction chamber, in the illustrated embodiment by welding to the steel wall 16 via a flat iron frame 15 the receiving box 1 with the form stone attached and attached to the receiving box 1 5 inside the through opening 2. Then the furnace wall around the device forming refractory mass 22 provided.
- the expansion joint 21 can be ensured be that shaped stone and receiving box 1 either with a coat of paint be provided from a mass that burns or is destroyed during operation or that around the shaped stone 5 and the receiving box 1 in a fireproof felt fabric Kind of a mat or the like is arranged, which then more during operation or less can resolve.
- the expansion joint 21 has the advantage that due to the shock-like vibrations within the device caused by the operation of the air blast device are generated, hardly any vibrations are transmitted to the surrounding furnace wall be so that the risk of cracking within the furnace wall is reduced.
- the same advantage results from the annular gap 19, since it has the expansion joint there both the front nozzle section, which is made of a high quality material Nozzle 12 as well as the inner jacket of the shaped block made from complex refractory material 5 largely from loads during operation as a result of the operation of the Air blast device is spared vibrations.
- the nozzle 12 has one particularly advantageous shape, which is optimized with regard to flow technology.
- the nozzle widens from the area of the connection to the cover plate 9 towards the inside of the oven and advantageously over the entire length of the nozzle and although at a comparatively small opening angle between 10 and 20 degrees, in particular around the range of 15 degrees.
- the section is perpendicular to it, like figure 2 identifies the nozzle starting from the connection to the cover plate 9 conically inwards tapered, but with the front area of the nozzle inside the molded block is carried out with parallel walls 23 and 24.
- the inner jacket is advantageously of the shaped stone slightly tapered to the outside and rounded off at 25, so that the nozzle can be easily inserted into the opening of the shaped block 5.
- the stabilization is in the front nozzle section 17 in the illustrated embodiment in the middle there is a web 26 which can also be seen in FIG. 3 and which connects the parallel walls 23 and 24 connects together.
- a web 26 which can also be seen in FIG. 3 and which connects the parallel walls 23 and 24 connects together.
- two bridge arranged in the middle two can also be used or several webs can be arranged distributed over the width of the outlet opening of the nozzle.
- FIG. 3 finally shows the end face of the front nozzle section 17 with the web 26, the annular gap 19 and the shaped stone 5.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Gas Burners (AREA)
Description
- Figur 1
- eine Schnittansicht durch die erfindungsgemäße Vorrichtung in Anordnung innerhalb der Durchgangsöffnung einer Reaktionskammer,
- Figur 2
- eine um 90 Grad gegenüber der Schnittansicht nach Figur 1 versetzte Schnittansicht der Vorrichtung sowie
- Figur 3
- eine Stirnansicht der Vorrichtung von der Innenseite der Reaktionskammer her gesehen.
Claims (17)
- Vorrichtung zur Anordnung von Einblasdüsen, insbesondere Heißbranddüsen oder Expansionsleitdüsen in Durchgangsöffnungen (2) von Reaktionskammern, wie Wärmetauschern für die Zementherstellung und dergleichen, mit einer Düse (12) und einem Aufnahmekasten (1), in dem die Düse (12) austauschbar aufgenommen ist, wobei die Düse an Luftstoßgeräte zur Beseitigung von Materialaufstauungen oder -anbackungen anschließbar ist und wobei dem Aufnahmekasten (1) ofeninnenseitig ein Formstein (5) vorgesetzt ist, innerhalb dem der vordere Abschnitt (17) der Düse (12) mit Abstand gegenüber der Ofeninnenseite und. der ofenseitigen Stirnfläche (18) des Formsteins (5) nach außen hin zurückgesetzt ist, dadurch gekennzeichnet, daß ein Ringspalt (19) zwischen dem vorderen Abschnitt (17) der Düse (12) und der inneren Mantelfläche des Formsteins (5) angeordnet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Formstein (5) an der innenseitigen Stirnfläche (Schulter (4) des Aufnahmekastens (1) angeordnet, insbesondere befestigt ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Formstein (5) an der innenseitigen Stirnfläche des Aufnahmekastens (1) über im Formstein (5) vorgesehene bzw. eingebettete Befestigungsanker (6) befestigt, insbesondere mit einer nach innen gezogenen Schulter (4) des Aufnahmekastens (1) verschraubt oder über eine andere Schnellbefestigungseinrichtung, insbesondere Klemmeinrichtung, verbunden ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Formstein (5) einteilig ausgebildet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß im Ringspalt (19) zwischen vorderem Düsenabschnitt (17) und der inneren Mantelfläche des Formsteins (5) eine Dichtungspackung (20) angeordnet ist.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die innerhalb des Ringspalts vorgesehene Dichtungspackung (20) als Ringdichtung ausgebildet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Düse (12) an ihrem außenseitigen Ende einen Flansch (14) aufweist, über den die Düse mit einer Abdeckplatte (9), vorzugsweise über Schraubverbindungen (13), verbunden ist, die an einem Flansch (8) des Aufnahmekastens (1) befestigt, vorzugsweise verschraubt ist oder über eine Klemmverbindung lösbar befestigt ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Abdeckplatte (9) ein Rohr (10) mit einem Anschlußflansch (11) für die Befestigung bzw. den Anschluß des Luftstoßgerätes aufweist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sich die Düse (12) nach innen zu ab dem Düsenflansch (14) verjüngt und am vorderen Düsenabschnitt insbesondere in einem Bereich innerhalb des Formsteins (5) mit parallelen Außenwänden (23, 24) verläuft (im Schnitt durch die Düsenlängsachse).
- Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, daß in einer Ebene senkrecht zum Schnitt nach Anspruch 9 die Düse (12) sich in Richtung Ofeninnenseite vorzugsweise bis zum Düsenende hin konisch aufweitet und zwar vorzugsweise unter einem Winkel von 10 bis 20 Grad, insbesondere ca. 15 Grad.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß am vorderen Düsenabschnitt (17) die Parallelwände (23, 24) durch Stege, insbesondere einen mittig angeordneten Steg (26) miteinander verbunden sind.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Formstein (5) derart vorne am Aufnahmekasten (1) gehalten ist, daß er bezüglich seines Außenmantels einen Abstand einer Dehnfuge (21') zur umgebenden Innenwand der Durchgangsöffnung (2) aufweist.
- Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß der Aufnahmekasten (1) derart in der Durchgangsöffnung (2) der Ofenwand angeordnet ist, daß gegenüber der Innenwand der Durchgangsöffnung eine Dehnfuge (21') vorhanden ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Aufnahmekasten (1) über einen Flansch (15), insbesondere Flacheisenrahmen an der Außenwand der Reaktionskammer befestigt ist, die vorzugsweise durch eine Stahlwand (16) bedeckt ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Formstein (5) wenigstens ein Drittel der axialen Länge der Durchgangsöffnung (2) der Ofenwand von seiner Länge her ausmacht.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die radiale Dicke des Formsteins (5) so ausgelegt ist, daß der Formstein radial innen über die Anschlußfläche (4) des Aufnahmekastens (1) schützend vorsteht.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Stirnfläche des vorderen Düsenabschnitts (17) um etwa mindestens ein Drittel der axialen Länge des Formsteins (5) gegenüber der inneren Stirnfläche (18) des Formsteins (5) nach hinten versetzt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10000023 | 2000-01-03 | ||
DE10000023A DE10000023A1 (de) | 2000-01-03 | 2000-01-03 | Vorrichtung zur Anordnung von Heißbranddüsen oder Expansionsleitdüsen in Durchgangsöffnungen von Reaktionskammern, wie Wärmetauschern für die Zementherstellung und dergleichen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1112947A2 EP1112947A2 (de) | 2001-07-04 |
EP1112947A3 EP1112947A3 (de) | 2002-07-24 |
EP1112947B1 true EP1112947B1 (de) | 2004-04-21 |
Family
ID=7626683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00127712A Expired - Lifetime EP1112947B1 (de) | 2000-01-03 | 2000-12-18 | Vorrichtung zur Anordnung von Heissbranddüsen oder Expansionsleitdüsen in Durchgangsöffnungen von Reaktionskammern, wie Wärmetauschern für die Zementherstellung |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1112947B1 (de) |
AT (1) | ATE264797T1 (de) |
DE (2) | DE10000023A1 (de) |
DK (1) | DK1112947T3 (de) |
ES (1) | ES2218056T3 (de) |
PT (1) | PT1112947E (de) |
TR (1) | TR200401330T4 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010012637U1 (de) | 2010-09-15 | 2010-11-18 | Agrilux Beteiligungs Gmbh | Luftstoßvorrichtung mit einem Luftstoßgerät mit daran angeordneter Heißbranddüse |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8236235B2 (en) | 2007-04-27 | 2012-08-07 | Martin Engineering Company | Removable nozzle for use with air cannons and aerators and method for replacing same |
DE202014002625U1 (de) | 2014-03-25 | 2015-03-27 | Agrilux Beteiligungs Gmbh | Ausblassystem für Luftstoßgeräte |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0197306B1 (de) * | 1985-03-06 | 1990-09-12 | AGRICHEMA Materialflusstechnik GmbH | Einrichtung zum auswechselbaren Einbau von ins Innere eines Reaktionsgefässes gerichteten Betriebselementen |
DE3841381C2 (de) * | 1988-12-08 | 1997-08-14 | Agrichema Materialflusstechnik | Vorrichtung zur Anordnung einer Expansionsleitdüse eines Luftstoßgerätes in Begrenzungswänden von Reaktionskammern |
DE9201690U1 (de) * | 1992-02-11 | 1992-07-16 | AGRICHEMA Materialflusstechnik GmbH, 6501 Budenheim | Vorrichtung zur Anordnung von Heißbrand- oder Expansionsleitdüsen für den Anschluß von Luftgeräten zur Beseitigung von Materialaufstauungen oder -anbackungen |
FR2733168B1 (fr) * | 1995-04-20 | 1997-06-27 | Financ De Gestion Soc | Procede de montage d'une buse d'injection de gaz en traversee d'une paroi et moyens pour la mise en oeuvre de ce procede |
DE29518283U1 (de) * | 1995-11-17 | 1996-01-04 | Agrichema Materialflußtechnik GmbH, 55257 Budenheim | Heißbranddüse mit Wechselrohr |
DE29822427U1 (de) * | 1998-12-16 | 1999-03-11 | Agrichema Materialflußtechnik GmbH, 55257 Budenheim | Wechselkasten mit Heißbranddüse |
-
2000
- 2000-01-03 DE DE10000023A patent/DE10000023A1/de not_active Withdrawn
- 2000-12-18 TR TR2004/01330T patent/TR200401330T4/xx unknown
- 2000-12-18 AT AT00127712T patent/ATE264797T1/de active
- 2000-12-18 DK DK00127712T patent/DK1112947T3/da active
- 2000-12-18 PT PT00127712T patent/PT1112947E/pt unknown
- 2000-12-18 ES ES00127712T patent/ES2218056T3/es not_active Expired - Lifetime
- 2000-12-18 DE DE50006143T patent/DE50006143D1/de not_active Expired - Lifetime
- 2000-12-18 EP EP00127712A patent/EP1112947B1/de not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010012637U1 (de) | 2010-09-15 | 2010-11-18 | Agrilux Beteiligungs Gmbh | Luftstoßvorrichtung mit einem Luftstoßgerät mit daran angeordneter Heißbranddüse |
Also Published As
Publication number | Publication date |
---|---|
ES2218056T3 (es) | 2004-11-16 |
DK1112947T3 (da) | 2004-07-12 |
EP1112947A2 (de) | 2001-07-04 |
ATE264797T1 (de) | 2004-05-15 |
DE50006143D1 (de) | 2004-05-27 |
TR200401330T4 (tr) | 2004-07-21 |
DE10000023A1 (de) | 2001-07-05 |
PT1112947E (pt) | 2004-09-30 |
EP1112947A3 (de) | 2002-07-24 |
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