EP0989363B2 - Grate bar - Google Patents

Grate bar Download PDF

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Publication number
EP0989363B2
EP0989363B2 EP98810960A EP98810960A EP0989363B2 EP 0989363 B2 EP0989363 B2 EP 0989363B2 EP 98810960 A EP98810960 A EP 98810960A EP 98810960 A EP98810960 A EP 98810960A EP 0989363 B2 EP0989363 B2 EP 0989363B2
Authority
EP
European Patent Office
Prior art keywords
grate block
longitudinal direction
grate
block
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
Application number
EP98810960A
Other languages
German (de)
French (fr)
Other versions
EP0989363B1 (en
EP0989363A1 (en
Inventor
Werner Brennwald
Ernst Hugentobler
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.)
Hitachi Zosen Innova AG
Original Assignee
Von Roll Umwelttechnik 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.)
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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8236346&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0989363(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Von Roll Umwelttechnik AG filed Critical Von Roll Umwelttechnik AG
Priority to EP98810960A priority Critical patent/EP0989363B2/en
Priority to DE59800483T priority patent/DE59800483D1/en
Priority to TW092222303U priority patent/TW595703U/en
Priority to KR10-1999-0041198A priority patent/KR100413503B1/en
Priority to CZ19993396A priority patent/CZ292887B6/en
Priority to JP11269897A priority patent/JP2000104913A/en
Publication of EP0989363A1 publication Critical patent/EP0989363A1/en
Publication of EP0989363B1 publication Critical patent/EP0989363B1/en
Application granted granted Critical
Publication of EP0989363B2 publication Critical patent/EP0989363B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H3/00Grates with hollow bars
    • F23H3/02Grates with hollow bars internally cooled
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H17/00Details of grates
    • F23H17/12Fire-bars
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23HGRATES; CLEANING OR RAKING GRATES
    • F23H2900/00Special features of combustion grates
    • F23H2900/03021Liquid cooled grates

Definitions

  • the invention relates to a grate block for a Plant for the thermal treatment of waste according to the preamble of claim 1.
  • EP 0 844 438 A2 is a Grate known for a furnace, which one A plurality of grate blocks provided with cooling channels having. These known, having a longitudinal direction Grate blocks are perpendicular to the longitudinal direction of the grate cooling channels, which are meandering are arranged, and in the longitudinal direction a different allow strong cooling.
  • a disadvantage of these known rust blocks is the fact that for a grate having a A plurality of grate blocks arranged side by side differently designed grate blocks required are. Furthermore, the side walls of the grate are bad cooled. In addition, the design is meandering Cooling channels relatively expensive and accordingly expensive.
  • the object of the present invention is to achieve this based on an economically more advantageous grate block to build.
  • Rohrs has the advantage that over the side surfaces a large amount of heat can be dissipated.
  • An advantage of Invention can be seen in the fact that the side walls or the lateral boundaries of the grate with the rust block according to the invention in a simple manner let cool.
  • the longitudinal alignment of the pipes prevented also largely differentiated cooling in Longitudinal direction of the grate block, which has the advantage that there are no major temperature differences in the longitudinal direction occur.
  • the grate block according to the invention has the advantage that this effect can be compensated for is that two grate blocks with their side faces be arranged side by side, the one side face the slightly higher temperature and the other side surface which has a slightly lower temperature, so the existing temperature difference through a heat exchange over the adjacent side surfaces is reduced.
  • a particularly advantageous embodiment is the pipe with respect to a in the longitudinal direction of the Grate block running symmetry plane symmetrical arranged progressively. This has the advantage that it only has to be used to load an entire grate requires a single embodiment of rust blocks.
  • Rust block can be seen in that the inserted Relative tube to achieve the required cooling capacity requires fewer curvatures, which is why the design the shape of the tube is inexpensive to manufacture.
  • This tube is prefabricated as a semi-finished product and that ready-to-use tube in a mold for a grate block unit inserted and the grate block on known Poured way.
  • Fig. 1a shows a longitudinal section through a Grate block 1 in the longitudinal direction L.
  • the grate block 1 is as a casting with a cast tube 16 made.
  • the grate block has an upper wall 23 which forms a usable area 33. Merges on the left the upper wall 23 into a rear wall 21 as well into a hook 22. On the right side the upper wall 23 in a corner 25 and then in the front Wall 24, which has a foot 26 with a bottom Forms bearing surface 26a.
  • Towards the back is the upper one Wall 23, the rear wall 21 and the front Wall 24 is closed by a side wall 29.
  • the tube 16 has a water supply connection 30 and then climbs to the corner between the top wall 23 and the side wall 29 and runs there in a section 16a along the corner in Longitudinal direction L to the corner 25. Then the pipe falls 16 from to the height of the foot 26 and then runs perpendicular to the viewing plane through foot 26.
  • the tube 16 runs over a length L2 as a section 16a in the longitudinal direction L along the corner.
  • the Tube 16 runs along a length L5 along the side wall 29.
  • the grate block 1 has an entire length L4 on and the foot a bearing surface 26a of length L3. There is also an air outlet opening in the front wall 24 47 arranged.
  • Fig. 1 b shows a further embodiment a grate block 1 which is very similar to that in Fig. 1a example is designed.
  • the pipe 16 initially runs approximately vertically after the nozzle 30 to the longitudinal direction L, then has an arc of 90 Degrees, and runs in section 16a again in the corner between upper wall 23 and side wall 29 in the longitudinal direction L.
  • the section 16a extends over a length L2 in the longitudinal direction L, the length L2 advantageously at least a fifth of the total length L4 of the grate block 1.
  • Fig. 1 a extends the section 16a is approximately over two thirds of the length L4, in Fig. 1 b about four fifths of the length L4.
  • FIG. 2a shows another in a bottom view Embodiment of a grate block 1.
  • This in essentially rectangular grate block 1 defines a longitudinal direction L and points, as already in Fig. 1 a shown, an upper wall 23, which laterally through a left side wall 29a and a right one Side wall 29b is bounded by the front at the front Wall 24 and back through the rear wall 21.
  • On the rear wall 21, two hooks 22 are arranged.
  • the Grate block 1 has one in the longitudinal direction L and perpendicular plane of symmetry extending to the viewing plane S on.
  • the tube 16 and the nozzle 30, 43 are symmetrical arranged to level S extending in grate block 1.
  • the sockets 30, 43 are over the rear wall 21 above and thus easily accessible.
  • the sections 16a of the tube 16 run in a first section free and open against the front Wall 24 into the casting.
  • the essentially has in the longitudinal direction L portion 16a then a curved section 16b, opens into another in the longitudinal direction L-running section 16c, then again into a curved section 16d, which opens into section 16e.
  • FIG. 2b shows a sectional view along the line A-A the course of the section 16e, which in the corner of top wall 23 and right side wall 29b runs. Then the pipe sinks in a section 16f and opens into the transverse to Longitudinal direction L in the foot portion 26 extending 16g.
  • the tube 16 has a slightly meandering, over long distances, however, running in the longitudinal direction L. Shape up. This tube 16 has relatively few Curvature points on, which is why it can be manufactured inexpensively is.
  • the side walls 29a, 29b are covered by the in Longitudinal direction L section 16e very well cooled. Is the cooling water, for example, by the Stubs 30 initiated, the right side wall experiences 29b a slightly stronger cooling than the side wall 29a, since the water reaches the subsection 16e the side wall 29a has already reached. This is usually a slight temperature difference from the left and right side walls 29a, 29b partly due to the thermal conductivity of the casting compensated.
  • left and / or right of the grate block 1 shown another grate block 1 arranged so that the side walls 29a, 29b are opposite and thus their slightly different Temperatures is additionally compensated so that a relatively uniform temperature distribution arises.
  • grate element 3 is a grate element 3 as part of a Grate for a thermal treatment plant represented by waste as garbage.
  • Several grate blocks 1 arranged side by side form the width of the grate.
  • the grate element 3 has in the illustrated embodiment nine in the longitudinal direction L. arranged rows 4.5 of rust blocks 1, wherein each a fixed realm 4 a movable Row 5 follows. All grate blocks 1 are on one End pivotally mounted around a block holder tube 7. The block holder tube 7 of the fixed grate blocks 1 is attached to a fixed console 8, whereas that Block holding tube 7 of the movable grate blocks 1 on one in the longitudinal direction L linearly movable bracket 9 attached is. All movable consoles 9 are in one Longitudinal direction L reciprocating grate car attached, which via rollers on a carrier of the Grate element 3 is mounted.
  • This movement in Longitudinal direction L essentially causes a movement the movable row 5 of grate blocks 1 in the direction of movement L1, with all grate blocks also one slight swiveling movement around the respective block holder tube 7 run.
  • the formed by the grate blocks 1 Conveyor track is laterally through a side end 15 or a side wall 15 limited.
  • a major advantage of the inventive Rust block 1 can be seen in that only one Embodiment meets all requirements regarding Cooling sufficient, both the cooling of the Rust block as well as the cooling of the side end 15.
  • the sockets 30, 43 are always on the same Place arranged what is the supply of the fluid much simplified.
  • 3a shows a perspective bottom view a further embodiment of a rust block 1, the meaning of the reference numerals with those 2a, 2b corresponds.
  • This one too Grate block 1 is symmetrical to one shown in FIG. 3b Plane of symmetry S designed.
  • 3b shows the course of the cast in the grate block 1 according to Fig. 3a Rohres 16.
  • the water is over the nozzle 30 fed, and then flows over the sections 16a, 16b, 16i, 16d, 16k, 16h for the longitudinal direction L and section extending along the side wall 29b 16e, and then over the section 16f to the section running perpendicular to the longitudinal direction L. 16g, and then over the symmetrical designed course of the tube 16 back to the nozzle 43rd
  • the grate block is preferably cooled in such a way that it is as warm as possible to prevent garbage lying on the surface 33 to little heat withdraw, but on the other hand is so cool that the Cast rust block not excessive Undergoes wear due to the high temperature.
  • the cast pipe 16 is made of metal or a metal alloy, for example made of cast iron.
  • the tube 16 can be formed in one piece, or from several connected sections exist, which form a flow for the fluid.
  • In the grate block 1 could also be several, for example two separate ones Pipes 16 can be cast in, both pipes two each Have nozzle 30.43 and thus separated with one Fluid such as water can be supplied. These two Pipes 16 are symmetrical to Plane of symmetry S arranged in the grate block 1 his.

Description

Die Erfindung betrifft einen Rostblock für eine Anlage zur thermischen Behandlung von Abfall gemäss dem Oberbegriff von Anspruch 1.The invention relates to a grate block for a Plant for the thermal treatment of waste according to the preamble of claim 1.

Aus der Druckschrift EP 0 844 438 A2 ist ein Rost für eine Feuerungsanlage bekannt, welcher eine Mehrzahl von mit Kühlkanälen versehenen Rostblöcken aufweist. Diese bekannten, eine Längsrichtung aufweisenden Rostblöcke haben senkrecht zur Längsrichtung des Rostes verlaufende Kühlkanäle, welche mäanderförmig angeordnet sind, und in Längsrichtung eine unterschiedlich starke Kühlung erlauben.From EP 0 844 438 A2 is a Grate known for a furnace, which one A plurality of grate blocks provided with cooling channels having. These known, having a longitudinal direction Grate blocks are perpendicular to the longitudinal direction of the grate cooling channels, which are meandering are arranged, and in the longitudinal direction a different allow strong cooling.

Nachteilig an diesen bekannten Rostblöcken ist die Tatsache, dass für einen Rost aufweisend eine Mehrzahl von nebeneinander angeordneter Rostblöcke unterschiedlich ausgestaltete Rostblöcke erforderlich sind. Weiter sind die Seitenwände des Rostes schlecht kühlbar. Zudem ist die Ausgestaltung der mäanderförmigen Kühlkanäle relativ aufwendig und entsprechend teuer.A disadvantage of these known rust blocks is the fact that for a grate having a A plurality of grate blocks arranged side by side differently designed grate blocks required are. Furthermore, the side walls of the grate are bad cooled. In addition, the design is meandering Cooling channels relatively expensive and accordingly expensive.

Dokument EP-A-0 924 464 (Zwischenliteratur im Sinne von Artikel (54(3)) offenbart einen Roststab mit einem Kuhlrohr.Document EP-A-0 924 464 (intermediate literature in the sense of Article (54 (3)) discloses a grate bar a cooling pipe.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen wirtschaftlich vorteilhafteren Rostblock zu bilden.The object of the present invention is to achieve this based on an economically more advantageous grate block to build.

Diese Aufgabe wird gelöst mit einem Rostblock aufweisend die Merkmale von Anspruches 1. Die Unteransprüche 2 bis 8 beziehen sich auf weitere, vorteilhafte Ausgestaltungen des Rostblockes.This problem is solved with a grate block having the features of claim 1. Die Subclaims 2 to 8 relate to further advantageous Refinements of the grate block.

Die Aufgabe wird durch die Merkmale gemäß Anspruchs 1 gelöst.The object is achieved by the features according to claim 1.

Die Anordnung eines über einem Teilabschnitt seitlich im Rostblock in Längsrichtung verlaufenden Rohrs weist den Vorteil auf, dass über die Seitenflächen eine grosse Wärmemenge abführbar ist. Ein Vorteil der Erfindung ist darin zu sehen, dass sich die Seitenwände bzw. die seitlichen Begrenzungen des Rostes mit dem erfindungsgemässen Rostblock auf einfache Weise kühlen lassen. Die Längsausrichtung der Rohre verhindert zudem weitgehend eine differenzierte Kühlung in Längsrichtung des Rostblockes, was den Vorteil aufweist, dass in Längsrichtung keine grossen Temperaturunterschiede auftreten. Da sich im Rostblock üblicherweise nur ein einziges Rohr befindet, welches von einem gemeinsamen Fluid durchströmt ist, kann der Effekt auftreten, dass der eine Teilabschnitt des seitlich verlaufenden Rohres eine höhere Temperatur aufweist als der andere, senkrecht zur Längsrichtung gegenüberliegende Teilabschnitt des seitlich verlaufenden Rohres. Dies kann im Rostblock einen senkrecht zur Längsrichtung verlaufenden Temperaturunterschied zur Folge haben. Der erfindungsgemässe Rostblock weist den Vorteil auf, dass dieser Effekt dadurch kompensierbar ist, dass zwei Rostblöcke mit ihren Seitenflächen nebeneinander angeordnet werden, wobei die eine Seitenfläche die leicht höhere Temperatur und die andere Seitenfläche die leicht tiefere Temperatur aufweist, so dass der vorhandene Temperaturunterschied durch einen Wärmetausch über die angrenzenden Seitenflächen reduziert wird.The arrangement of one over a section extending laterally in the grate block in the longitudinal direction Rohrs has the advantage that over the side surfaces a large amount of heat can be dissipated. An advantage of Invention can be seen in the fact that the side walls or the lateral boundaries of the grate with the rust block according to the invention in a simple manner let cool. The longitudinal alignment of the pipes prevented also largely differentiated cooling in Longitudinal direction of the grate block, which has the advantage that there are no major temperature differences in the longitudinal direction occur. Because usually in the grate block only a single pipe is located, which of a common fluid flows through, the effect occur that a section of the side extending pipe has a higher temperature than the other, opposite perpendicular to the longitudinal direction Section of the laterally extending Tube. This can be perpendicular to the grate block Longitudinal temperature difference have as a consequence. The grate block according to the invention has the advantage that this effect can be compensated for is that two grate blocks with their side faces be arranged side by side, the one side face the slightly higher temperature and the other side surface which has a slightly lower temperature, so the existing temperature difference through a heat exchange over the adjacent side surfaces is reduced.

In einer besonders vorteilhaften Ausgestaltung ist das Rohr bezüglich einer in Längsrichtung des Rostblockes verlaufenden Symmetrieebene symmetrisch verlaufend angeordnet. Dies weist den Vorteil auf, dass es zur Bestückung eines ganzen Rostes nur noch einer einzigen Ausführungsform von Rostblöcken bedarf.In a particularly advantageous embodiment is the pipe with respect to a in the longitudinal direction of the Grate block running symmetry plane symmetrical arranged progressively. This has the advantage that it only has to be used to load an entire grate requires a single embodiment of rust blocks.

Ein weiterer Vorteil des erfindungsgemässen Rostblockes ist darin zu sehen, dass das eingelegte Rohr zur Erzielung der geforderten Kühlleistung relativ weniger Krümmungen bedarf, weshalb die Ausgestaltung der Form des Rohres kostengünstig herstellbar ist. Dieses Rohr wird als Halbfabrikat vorgefertigt und das formfertige Rohr in eine Gussform für eine Rostblockeinheit eingelegt und der Rostblock auf an sich bekannte Weise gegossen.Another advantage of the invention Rust block can be seen in that the inserted Relative tube to achieve the required cooling capacity requires fewer curvatures, which is why the design the shape of the tube is inexpensive to manufacture. This tube is prefabricated as a semi-finished product and that ready-to-use tube in a mold for a grate block unit inserted and the grate block on known Poured way.

Die Erfindung wird an Hand mehrerer Ausführungsbeispielen mit Hilfe der nachfolgenden Figuren näher erläutert.The invention is based on several exemplary embodiments with the help of the following figures explained in more detail.

Es zeigen:

Fig.1 a
einen Längsschnitt eines Rostblocks;
Fig. 1b
eine perspektivische Ansicht eines Längsschnittes eines weiteren Rostblockes;
Fig. 2a
Unteransicht eines weiteren Rostblockes;
Fig. 2b
einen Querschnitt durch den Rostblock gemäss Fig. 2a entlang der Linie A-A;
Fig. 3a
eine perspektivische Unteransicht eines weiteren Rostblockes;
Fig. 3b
eine perspektivische Ansicht des Rohrverlaufes im Rostblock gemäss Fig. 3a;
Fig. 4
eine perspektivische Ansicht eines Rostes.
Show it:
Fig.1 a
a longitudinal section of a grate block;
Fig. 1b
a perspective view of a longitudinal section of a further grate block;
Fig. 2a
Bottom view of another grate block;
Fig. 2b
a cross section through the grate block according to Figure 2a along the line AA.
Fig. 3a
a bottom perspective view of another grate block;
Fig. 3b
a perspective view of the pipe run in the grate block according to Fig. 3a;
Fig. 4
a perspective view of a grate.

Fig. 1a zeigt einen Längsschnitt durch einen Rostblock 1 in Längsrichtung L. Der Rostblock 1 ist als ein Gussteil mit einem eingegossenen Rohr 16 gefertigt. Der Rostblock weist eine obere Wand 23 auf, welche eine Nutzfläche 33 ausbildet. Auf der linken Seite mündet die obere Wand 23 in eine hintere Wand 21 sowie in einen Haken 22. Auf der rechten Seite mündet die obere Wand 23 in eine Ecke 25 und danach in die vordere Wand 24, welche unten einen Fuss 26 mit einer Auflagefläche 26a ausbildet. Gegen hinten wird die obere Wand 23, die hintere Wand 21 sowie die vordere Wand 24 durch eine Seitenwand 29 abgeschlossen. Das Rohr 16 weist einen Wasserzufuhrstutzen 30 auf und steigt anschliessend auf bis zur Ecke zwischen der oberen Wand 23 sowie der Seitenwand 29 und verläuft dort in einem Teilabschnitt 16a entlang der Ecke in Längsrichtung L bis zur Ecke 25. Danach fällt das Rohr 16 ab bis zur Höhe des Fusses 26 und verläuft danach senkrecht zur Betrachtungsebene durch den Fuss 26. Das Rohr 16 verläuft über einer Länge L2 als Teilabschnitt 16a in Längsrichtung L entlang der Ecke. Das Rohr 16 verläuft über eine Länge L5 entlang der Seitenwand 29. Der Rostblock 1 weist eine gesamte Länge L4 auf und der Fuss eine Auflagefläche 26a der Länge L3. In der vorderen Wand 24 ist zudem eine Luftaustrittsöffnung 47 angeordnet.Fig. 1a shows a longitudinal section through a Grate block 1 in the longitudinal direction L. The grate block 1 is as a casting with a cast tube 16 made. The grate block has an upper wall 23 which forms a usable area 33. Merges on the left the upper wall 23 into a rear wall 21 as well into a hook 22. On the right side the upper wall 23 in a corner 25 and then in the front Wall 24, which has a foot 26 with a bottom Forms bearing surface 26a. Towards the back is the upper one Wall 23, the rear wall 21 and the front Wall 24 is closed by a side wall 29. The tube 16 has a water supply connection 30 and then climbs to the corner between the top wall 23 and the side wall 29 and runs there in a section 16a along the corner in Longitudinal direction L to the corner 25. Then the pipe falls 16 from to the height of the foot 26 and then runs perpendicular to the viewing plane through foot 26. The tube 16 runs over a length L2 as a section 16a in the longitudinal direction L along the corner. The Tube 16 runs along a length L5 along the side wall 29. The grate block 1 has an entire length L4 on and the foot a bearing surface 26a of length L3. There is also an air outlet opening in the front wall 24 47 arranged.

Fig. 1 b zeigt ein weiteres Ausführungsbeispiel eines Rostblockes 1 welches sehr ähnlich dem in Fig. 1a dargestellten Beispiel ausgestaltet ist. Das Rohr 16 verläuft nach dem Stutzen 30 anfänglich etwa senkrecht zur Längsrichtung L, weist danach einen Bogen von 90 Grad auf, und verläuft im Teilabschnitt 16a wiederum in der Ecke zwischen oberer Wand 23 und Seitenwand 29 in Längsrichtung L. Der Teilabschnitt 16a erstreckt sich über eine Länge L2 in Längsrichtung L, wobei die Länge L2 vorteilhafterweise zumindest ein Fünftel der Gesamtlänge L4 des Rostblockes 1 beträgt. In Fig. 1 a erstreckt sich der Teilabschnitt 16a etwa über zwei Drittel der Länge L4, in Fig. 1 b etwa über vier Fünftel der Länge L4.Fig. 1 b shows a further embodiment a grate block 1 which is very similar to that in Fig. 1a example is designed. The pipe 16 initially runs approximately vertically after the nozzle 30 to the longitudinal direction L, then has an arc of 90 Degrees, and runs in section 16a again in the corner between upper wall 23 and side wall 29 in the longitudinal direction L. The section 16a extends over a length L2 in the longitudinal direction L, the length L2 advantageously at least a fifth of the total length L4 of the grate block 1. In Fig. 1 a extends the section 16a is approximately over two thirds of the length L4, in Fig. 1 b about four fifths of the length L4.

Fig. 2a zeigt in einer Untenansicht ein weiteres Ausführungsbeispiel eines Rostblockes 1. Dieser im wesentlichen rechteckförmig ausgestaltete Rostblock 1 definiert eine Längsrichtung L und weist, wie bereits in Fig. 1 a dargestellt, eine obere Wand 23 auf, welche seitlich durch eine linke Seitenwand 29a sowie eine rechte Seitenwand 29b begrenzt ist, vorne durch die vordere Wand 24 und hinten durch die hintere Wand 21. An der hinteren Wand 21 sind zwei Haken 22 angeordnet. Der Rostblock 1 weist eine in Längsrichtung L und senkrecht zur Betrachtungsebene verlaufende Symmetrieebene S auf. Das Rohr 16 sowie die Stutzen 30,43 sind symmetrisch zur Ebene S verlaufend im Rostblock 1 angeordnet. Die Stutzen 30, 43 sind über die hintere Wand 21 vorstehend und somit einfach zugänglich angeordnet. Die Teilabschnitte 16a des Rohrs 16 verlaufen in einem ersten Abschnitt frei und münden gegen die vordere Wand 24 hin in das Gussteil. Der im wesentlichen in Längsrichtung L verlaufende Teilabschnitt 16a weist darauf folgend einen gekrümmt verlaufenden Teilabschnitt 16b auf, mündet in einen weiteren in Längsrichtung Lverlaufenden Teilabschnitt 16c, daraufhin wiederum in einen gekrümmt verlaufenden Teilabschnitt 16d, welcher in den Teilabschnitt 16e mündet.2a shows another in a bottom view Embodiment of a grate block 1. This in essentially rectangular grate block 1 defines a longitudinal direction L and points, as already in Fig. 1 a shown, an upper wall 23, which laterally through a left side wall 29a and a right one Side wall 29b is bounded by the front at the front Wall 24 and back through the rear wall 21. On the rear wall 21, two hooks 22 are arranged. The Grate block 1 has one in the longitudinal direction L and perpendicular plane of symmetry extending to the viewing plane S on. The tube 16 and the nozzle 30, 43 are symmetrical arranged to level S extending in grate block 1. The sockets 30, 43 are over the rear wall 21 above and thus easily accessible. The sections 16a of the tube 16 run in a first section free and open against the front Wall 24 into the casting. The essentially has in the longitudinal direction L portion 16a then a curved section 16b, opens into another in the longitudinal direction L-running section 16c, then again into a curved section 16d, which opens into section 16e.

Fig. 2b zeigt in einer Schnittdarstellung entlang der Linie A-A den Verlauf des Teilabschnittes 16e, welcher in der Ecke von oberer Wand 23 und rechter Seitenwand 29b verläuft. Daraufhin senkt sich das Rohr in einem Teilabschnitt 16f und mündet in den quer zur Längsrichtung L im Fuss 26 verlaufenden Teilabschnitt 16g.2b shows a sectional view along the line A-A the course of the section 16e, which in the corner of top wall 23 and right side wall 29b runs. Then the pipe sinks in a section 16f and opens into the transverse to Longitudinal direction L in the foot portion 26 extending 16g.

Das Rohr 16 weist eine leicht mäanderförmige, über weite Strecken jedoch in Längsrichtung L verlaufende Form auf. Dieser Rohr 16 weist relativ wenige Krümmungsstellen auf, weshalb es kostengünstig herstellbar ist. Die Seitenwände 29a,29b sind durch den in Längsrichtung L verlaufenden Teilabschnitt 16e sehr gut gekühlt. Wird das Kühlwasser beispielsweise durch den Stutzen 30 eingeleitet, so erfährt die rechte Seitenwand 29b eine leicht stärkere Kühlung als die Seitenwand 29a, da sich das Wasser, bis es zum Teilabschnitt 16e der Seitenwand 29a gelangt ist, bereits erwärmt hat. Dieser üblicherweise geringfügige Temperaturunterschied von linker und rechter Seitenwand 29a, 29b wird teilweise durch die Wärmeleitfähigkeit des Gussteils kompensiert. Vorteilhafterweise wird links und/oder recht des dargestellten Rostblockes 1 ein weiterer Rostblock 1 angeordnet, so dass deren Seitenwände 29a, 29b gegenüber liegen und dadurch deren leicht unterschiedliche Temperaturen zusätzlich kompensiert wird, so dass eine relativ gleichförmige Temperaturverteilung entsteht.The tube 16 has a slightly meandering, over long distances, however, running in the longitudinal direction L. Shape up. This tube 16 has relatively few Curvature points on, which is why it can be manufactured inexpensively is. The side walls 29a, 29b are covered by the in Longitudinal direction L section 16e very well cooled. Is the cooling water, for example, by the Stubs 30 initiated, the right side wall experiences 29b a slightly stronger cooling than the side wall 29a, since the water reaches the subsection 16e the side wall 29a has already reached. This is usually a slight temperature difference from the left and right side walls 29a, 29b partly due to the thermal conductivity of the casting compensated. Advantageously, left and / or right of the grate block 1 shown another grate block 1 arranged so that the side walls 29a, 29b are opposite and thus their slightly different Temperatures is additionally compensated so that a relatively uniform temperature distribution arises.

In Fig. 4 ist ein Rostelement 3 als Teil eines Rostes für eine Anlage zur thermischen Behandlung von Abfall wie Müll dargestellt. Mehrere Rostblöcke 1 nebeneinander angeordnet bilden die Breite des Rostes.4 is a grate element 3 as part of a Grate for a thermal treatment plant represented by waste as garbage. Several grate blocks 1 arranged side by side form the width of the grate.

Das Rostelement 3 weist im dargestellten Ausführungsbeipiel neun in Längsrichtung L hintereinander angeordnete Reihen 4,5 von Rostblöcken 1 auf, wobei jeweils eine feststehende Reiche 4 einer beweglichen Reihe 5 folgt. Alle Rostblöcke 1 sind an deren einem Ende um ein Blockhalterohr 7 schwenkbar gelagert. Das Blockhalterohr 7 der feststehenden Rostblöcke 1 ist an einer ortsfesten Konsole 8 befestigt, wogegen das Blockhalterohr 7 der beweglichen Rostblöcke 1 an einer in Längsrichtung L linear beweglichen Konsole 9 befestigt ist. Alle beweglichen Konsolen 9 sind an einem in Längsrichtung L hin und her beweglichen Rostwagen befestigt, welcher über Rollen an einem Träger des Rostelementes 3 gelagert ist. Diese Bewegung in Längsrichtung L bewirkt im wesentlichen eine Bewegung der beweglichen Reihe 5 von Rostblöcken 1 in Bewegungsrichtung L1, wobei alle Rostblöcke zudem eine geringe Schwenkbewegung um das jeweilige Blockhalterohr 7 ausführen. Die durch die Rostblöcke 1 gebildete Förderstrecke ist seitlich durch einen Seitenabschluss 15 bzw. eine Seitenwand 15 begrenzt.The grate element 3 has in the illustrated embodiment nine in the longitudinal direction L. arranged rows 4.5 of rust blocks 1, wherein each a fixed realm 4 a movable Row 5 follows. All grate blocks 1 are on one End pivotally mounted around a block holder tube 7. The block holder tube 7 of the fixed grate blocks 1 is attached to a fixed console 8, whereas that Block holding tube 7 of the movable grate blocks 1 on one in the longitudinal direction L linearly movable bracket 9 attached is. All movable consoles 9 are in one Longitudinal direction L reciprocating grate car attached, which via rollers on a carrier of the Grate element 3 is mounted. This movement in Longitudinal direction L essentially causes a movement the movable row 5 of grate blocks 1 in the direction of movement L1, with all grate blocks also one slight swiveling movement around the respective block holder tube 7 run. The formed by the grate blocks 1 Conveyor track is laterally through a side end 15 or a side wall 15 limited.

Durch die erfindungsgemässe Anordnung des Teilabschnittes 16a,16e im Rostblock 1 lassen sich die Seitenwände 15 auf einfache weise über die jeweils anliegende Seitenwand 29a,29b des Rostblockes 1 kühlen.Due to the arrangement of the Section 16a, 16e in the grate block 1, the Side walls 15 in a simple manner over the adjacent Cool side wall 29a, 29b of grate block 1.

Ein wesentlicher Vorteil des erfindungsgemässen Rostblockes 1 ist darin zu sehen, dass eine einzige Ausführungsform genügt um allen Anforderungen bezüglich Kühlung zu genügen, sowohl der Kühlung des Rostblockes als auch der Kühlung des Seitenabschlusses 15. Zudem sind die Stutzen 30,43 immer an derselben Stelle angeordnet, was die Zuführung des Fluides wesentlich vereinfacht.A major advantage of the inventive Rust block 1 can be seen in that only one Embodiment meets all requirements regarding Cooling sufficient, both the cooling of the Rust block as well as the cooling of the side end 15. In addition, the sockets 30, 43 are always on the same Place arranged what is the supply of the fluid much simplified.

Fig. 3a zeigt eine perspektivische Unteransicht eines weiteren Ausführungsbeispieles eines Rostblokkes 1, wobei die Bedeutung der Bezugszeichen mit denjenigen der Figur 2a,2b übereinstimmt. Auch dieser Rostblock 1 ist symmetrisch zu einer in Fig. 3b angedueteten Symmetrieebene S ausgestaltet. Fig. 3b zeigt den Verlauf des im Rostblock 1 gemäss Fig. 3a eingegossenen Rohres 16. Das Wasser wird über den Stutzen 30 zugeführt, und fliesst daraufhin über die Teilabschnitte 16a, 16b, 16i, 16d, 16k, 16h zum in Längsrichtung L und entlang der Seitenwand 29b verlaufenden Teilabschnitt 16e, und daraufhin über den Teilabschnitt 16f zum senkrecht zur Längsrichtung L ., verlaufenden Teilabschnitt 16g, und daraufhin über den symmetrisch ausgestalteten Verlauf des Rohres 16 zurück zum Stutzen 43.3a shows a perspective bottom view a further embodiment of a rust block 1, the meaning of the reference numerals with those 2a, 2b corresponds. This one too Grate block 1 is symmetrical to one shown in FIG. 3b Plane of symmetry S designed. 3b shows the course of the cast in the grate block 1 according to Fig. 3a Rohres 16. The water is over the nozzle 30 fed, and then flows over the sections 16a, 16b, 16i, 16d, 16k, 16h for the longitudinal direction L and section extending along the side wall 29b 16e, and then over the section 16f to the section running perpendicular to the longitudinal direction L. 16g, and then over the symmetrical designed course of the tube 16 back to the nozzle 43rd

Vorzugsweise wird der Rostblock derart gekühlt, dass dieser einerseits möglichst warm ist, um dem auf der Fläche 33 aufliegenden Müll wenig Wärme zu entziehen, andererseits jedoch derart kühl ist, dass der aus Guss bestehende Rostblock keine übermässige Abnutzung durch die hohe Temperatur erfährt.The grate block is preferably cooled in such a way that it is as warm as possible to prevent garbage lying on the surface 33 to little heat withdraw, but on the other hand is so cool that the Cast rust block not excessive Undergoes wear due to the high temperature.

Das eingegossene Rohr 16 besteht aus Metall oder einer Metalllegierung, beispielsweise aus Guss. Das Rohr 16 kann einstückig ausgebildet sein, oder aus mehreren verbundenen Teilstücken bestehen, welche einen Durchfluss für das Fluid ausbilden. Im Rostblock 1 könnten auch mehrere, beispielsweise zwei getrennte Rohre 16 eingegossen sein, wobei beide Rohre je zwei Stutzen 30,43 aufweisen und somit getrennt mit einem Fluid wie Wasser versorgt werden können. Diese beiden Rohre 16 sind symmetrisch zur Symmetrieebene S verlaufend im Rostblock 1 angeordnet sein.The cast pipe 16 is made of metal or a metal alloy, for example made of cast iron. The tube 16 can be formed in one piece, or from several connected sections exist, which form a flow for the fluid. In the grate block 1 could also be several, for example two separate ones Pipes 16 can be cast in, both pipes two each Have nozzle 30.43 and thus separated with one Fluid such as water can be supplied. These two Pipes 16 are symmetrical to Plane of symmetry S arranged in the grate block 1 his.

Claims (7)

  1. A grate block (1) for a plant for the thermal treatment of waste, comprising an essentially rectangular body establishing a longitudinal direction (L) and having an integrally cast pipe (16) running in a meander shape, the grate block (1) having an effective surface (33) pointing upward, wherein a section (16a, 16e) of the pipe (16) is arranged laterally in the grate block (1) so as to run in longitudinal direction (L), and wherein the pipe (16) is arranged so as to run symmetrically with regard to a plane (S) running perpendicularly to the effective surface (33) and in longitudinal direction (L) and the grate block has, in his front part (24), air-outlet openings (47) running approximately in the longitudinal direction (L).
  2. The grate block (1) as claimed in claim 1, wherein this grate block (1) has an overall length (L4) in longitudinal direction (L), and wherein the section (16a, 16e) extends at least over one fifth of the overall length (L4).
  3. The grate block (1) as claimed in one of the preceding claims, wherein this grate block (1) has a top wall (23), which forms the effective surface (33) and is connected on either side to two side walls (29a, 29b) running in longitudinal direction (L) and approximately perpendicularly to the effective surface (33).
  4. The grate block (1) as claimed in claim 3, wherein the side wall (29a, 29b) and the wall (23) forming the effective surface (33) form a corner along which the section (16a, 16e) runs.
  5. The grate block (1) as claimed in one of the preceding claims, wherein this grate block (1) has a front part (24) running perpendicularly to the longitudinal direction (L), and wherein a section (16g) of this pipe (16) is arranged in this front part (24) so as to run perpendicularly to the longitudinal direction (L) .
  6. The grate block (1) as claimed in one of the preceding claims, wherein this grate block (1) has a closure part (21) running perpendicularly to the longitudinal direction (L), and wherein the pipe (16) has a fluid-feed connection (30) and a fluid-discharge connection (43), and wherein these connections (30, 43) are arranged in the region of the closure part (21).
  7. A garbage-incineration plant comprising a grate block (1) as claimed in one of claims 1 to 6.
EP98810960A 1998-09-24 1998-09-24 Grate bar Expired - Lifetime EP0989363B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP98810960A EP0989363B2 (en) 1998-09-24 1998-09-24 Grate bar
DE59800483T DE59800483D1 (en) 1998-09-24 1998-09-24 Rust block
TW092222303U TW595703U (en) 1998-09-24 1999-09-03 Grate block
KR10-1999-0041198A KR100413503B1 (en) 1998-09-24 1999-09-22 A grate block for a plant for the thermal treatment of waste
CZ19993396A CZ292887B6 (en) 1998-09-24 1999-09-24 Grate block for waste treatment plant and combustion equipment in which such grate block is comprised
JP11269897A JP2000104913A (en) 1998-09-24 1999-09-24 Stoker block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98810960A EP0989363B2 (en) 1998-09-24 1998-09-24 Grate bar

Publications (3)

Publication Number Publication Date
EP0989363A1 EP0989363A1 (en) 2000-03-29
EP0989363B1 EP0989363B1 (en) 2001-02-21
EP0989363B2 true EP0989363B2 (en) 2003-12-10

Family

ID=8236346

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810960A Expired - Lifetime EP0989363B2 (en) 1998-09-24 1998-09-24 Grate bar

Country Status (6)

Country Link
EP (1) EP0989363B2 (en)
JP (1) JP2000104913A (en)
KR (1) KR100413503B1 (en)
CZ (1) CZ292887B6 (en)
DE (1) DE59800483D1 (en)
TW (1) TW595703U (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002021049A1 (en) * 2000-09-04 2002-03-14 Theodor Koch Grate bar with liquid cooling for incinerators
DE102004034322B4 (en) * 2004-07-15 2006-09-28 Lurgi Lentjes Ag grate plate
DE202005011215U1 (en) * 2005-07-16 2005-09-29 Lls Standardkessel Service Gmbh Internally cooled sliding grate for combustion plants, has coolant supply line with extendible cylinder
JP5422291B2 (en) * 2009-07-30 2014-02-19 株式会社タクマ Water-cooled stoker furnace
DE102015101356A1 (en) * 2015-01-30 2016-08-04 Standardkessel Baumgarte Service GmbH Grate bar with coolant channel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240590A (en) 1938-05-02 1941-05-06 George W Wallace Automatic fluid cooled grate
WO1996029544A1 (en) 1995-03-23 1996-09-26 Theodor Koch Combustion grate and process for optimising its operation
DE19650742C1 (en) 1996-12-06 1998-02-19 Metallgesellschaft Ag Water-cooled vibrating grate for solid fuel incinerator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9416320U1 (en) * 1994-01-14 1995-01-12 Noell Abfall & Energietech Remaining rod and rest with cooling device
DE19648128C2 (en) 1996-11-21 2002-11-07 Alstom Grate for a furnace
EP0924464A1 (en) * 1997-12-19 1999-06-23 KOCH, Theodor Grate for a combustion plant and method for its cooling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240590A (en) 1938-05-02 1941-05-06 George W Wallace Automatic fluid cooled grate
WO1996029544A1 (en) 1995-03-23 1996-09-26 Theodor Koch Combustion grate and process for optimising its operation
DE19650742C1 (en) 1996-12-06 1998-02-19 Metallgesellschaft Ag Water-cooled vibrating grate for solid fuel incinerator

Also Published As

Publication number Publication date
JP2000104913A (en) 2000-04-11
CZ9903396A3 (en) 2001-01-17
CZ292887B6 (en) 2003-12-17
KR20000023442A (en) 2000-04-25
KR100413503B1 (en) 2003-12-31
TW595703U (en) 2004-06-21
DE59800483D1 (en) 2001-03-29
EP0989363B1 (en) 2001-02-21
EP0989363A1 (en) 2000-03-29

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