EP3926237A2 - Barreau de grille, agencement de barreau de grille et procédé de fonctionnement d'un dispositif de barreau de grille - Google Patents

Barreau de grille, agencement de barreau de grille et procédé de fonctionnement d'un dispositif de barreau de grille Download PDF

Info

Publication number
EP3926237A2
EP3926237A2 EP21000116.0A EP21000116A EP3926237A2 EP 3926237 A2 EP3926237 A2 EP 3926237A2 EP 21000116 A EP21000116 A EP 21000116A EP 3926237 A2 EP3926237 A2 EP 3926237A2
Authority
EP
European Patent Office
Prior art keywords
grate bar
grate
running surface
head
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21000116.0A
Other languages
German (de)
English (en)
Other versions
EP3926237C0 (fr
EP3926237B1 (fr
EP3926237A3 (fr
Inventor
Ulrich Martin
Helmut Pupp
Max Josef Schönsteiner
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.)
Martin GmbH fuer Umwelt und Energietechnik
Original Assignee
Martin GmbH fuer Umwelt und Energietechnik
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 Martin GmbH fuer Umwelt und Energietechnik filed Critical Martin GmbH fuer Umwelt und Energietechnik
Priority to EP22174061.6A priority Critical patent/EP4067744B1/fr
Publication of EP3926237A2 publication Critical patent/EP3926237A2/fr
Publication of EP3926237A3 publication Critical patent/EP3926237A3/fr
Application granted granted Critical
Publication of EP3926237C0 publication Critical patent/EP3926237C0/fr
Publication of EP3926237B1 publication Critical patent/EP3926237B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/12—Fire-bars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H7/00—Inclined or stepped grates
    • F23H7/06—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding
    • F23H7/08—Inclined or stepped grates with movable bars disposed parallel to direction of fuel feeding reciprocating along their axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H17/00—Details of grates
    • F23H17/08—Bearers; Frames; Spacers; Supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H2900/00—Special features of combustion grates
    • F23H2900/17002—Detachable or removable worn-out parts

Definitions

  • the invention relates to a grate bar with a grate bar head, two side walls, a tread behind the grate bar head between the side walls and an underside lying between the side walls under the tread, a recess in a side wall forming at least one air slot between the tread and the underside.
  • Stair gratings are used for lumpy and ash-rich fuels that require improved stoking, e.g. B. household and commercial waste, biomass, processed garbage or now less often also lignite.
  • Stair grates have a large number of grate bars that can be firmly connected to one another or can be moved relative to one another in order to move the items to be fired on the grate.
  • Grate bars usually have air slots in a grate bar head in front of the running surface.
  • recesses or also in the form of round openings in the surface are provided on the side wall of the grate bar, which make it possible to convey air to the underside of the grate bar, which can then escape between grate bars through the air slot to the combustion bed.
  • round openings for example, can also be provided in the surface of the grate bar.
  • the EP 2 614 304 A1 Air slots which are arranged in the side walls of the grate bar in the area of the grate bar head and the running surface. Since these air slots are arranged on both sides of the grate bar, recesses are opposite each other when the grate bar is installed and together form an air slot. With a relative movement of grate bars lying next to one another, particles that have penetrated the air slots are cut up and thus comminuted in such a way that they are conveyed back into the combustion bed by the air flow in the air slots.
  • the invention is therefore based on the object of further developing such known grate bars in order to protect the grate bars in practical operation and to achieve a defined ventilation of the combustion bed.
  • the shear effect thus essentially does not work between two grate bars lying next to one another, but between a grate bar below, where particles can possibly penetrate into the air slot, and a grate bar above, which slides on the running surface and thus also pushes out particles that have penetrated into an air slot .
  • the grate bar head of the grate bar arranged above the air slits arranged in the running surface passes over ensures that the air slit is temporarily located in the combustion bed and is temporarily covered by the grate bar above. This reduces the thermal wear on the air slot.
  • the passage over the air slot by the grate bar head of the grate bar sliding over it leads to the fact that the running surface is cleaned or at least pushed free. This also cleans the top of the air slot. In the area of the air slots, the fire is fanned by the air supplied. This can cause so-called forge fires, which lead to thermal wear, especially in the area of the air slots.
  • a particular advantage is that this forge fire is extinguished by the upper grate bar head moving over it.
  • the air slots are even briefly covered by the grate rod head moving over them, so that they can cool down a little. But even after that, the air slots that have been driven over can cool down further, as the burning material above has been pushed away.
  • the grate bar located above frees the air slots from particles trapped therein in the area of the running surface of the grate bar underneath, it is further proposed that the side wall have at least one air slot only in the area of the running surface.
  • the grate bar no longer has any air slots in the area of the grate bar head and either an air slot is provided in the area of the running surface or several air slots are provided one behind the other, two air slots preferably being arranged one behind the other in the area of the running surface.
  • the air slot have a cross-sectional area which widens from the running surface towards the bottom.
  • the air slot thus expands from the running surface lying above to the underside below, and this leads to the fact that particles that get from the combustion bed and thus from the running surface into the air slot fall down through the air slot can if they are pressed or cut into the air slot by an upper grate bar guided over the running surface.
  • the lower end of the grate bar head lies on the running surface of an underlying grate bar and the sliding surface of the upper grate bar head touches the running surface of the grate bar below.
  • This sliding surface can have a clearing strip which is shaped in such a way that it acts with a defined force on particles lying on the running surface or possibly also something that has penetrated the air slots.
  • the clearing strip can have a contact surface extending at an acute angle or an arc with a radius of less than 200 mm and in particular around a sector of a circle of less than 80 ° to the sliding surface as the cutting edge.
  • This cutting edge can be arranged in the longitudinal direction of the grate bar at the front end of the sliding surface in order to cut, scrape or advance material from the surface of the grate bar below when the grate bar is advanced over a running surface of an underlying grate bar.
  • the sliding surface of the grate bar can, however, also have a clearing strip which, as a sliding edge, has a contact surface extending at an obtuse angle or an arc with a radius of more than 200 mm and in particular around a sector of a circle of more than 100 ° to the sliding surface.
  • This sliding edge can also be formed on the front area of the sliding surface and / or on the rear area of the sliding surface in order to allow the sliding surface of the grate bar head to slide safely over such deposits even if the running surface under the grate bar head is dirty.
  • the screw of the bolt has a head which has a polygonal socket.
  • the screw can then be, for example, a so-called Allen screw, a hexagon socket or a square socket.
  • the head of the screw is preferably located on a side wall in such a way that it protrudes outward over the side wall and takes on the function of the bolt, while a nut is arranged below the running surface and only serves to hold the screw and, if necessary, to replace the screw.
  • the head of the bolt functions as the known bolt, since this head can engage in a bolt window of an adjacent grate bar. It is advantageous if this head has a round cross-section, since no interfering material can then collect on the bolt. The round surface of the bar no longer forms a plane on which disruptive material agglomerates.
  • a grate bar can also have several bars at different points on the grate bar. However, it is advantageous if the grate bar has only one latch, since then the problems arising on the latch are also reduced to one problem area.
  • the bolt window thus has an opening at the bottom through which material that has entered the bolt window can fall out of the bolt window again.
  • the grate bar has a core bar which is cast into the grate bar.
  • grate bars made of different materials. These grate bars have a special material on the running surface, while the rest of the grate bar is made of a different material. This enables particularly stable running surfaces.
  • a core bar cast into the grate bar has a different function. It can be designed to be particularly ductile, so that it does not break if the rod breaks or at least still holds the fragments of the rod together in such a way that the rod cannot fall off. This means that the grate can continue to operate until the next controlled standstill, even if the grate bar is broken, without a broken bar missing from the grate, which has fallen into the funnel below.
  • a grate bar In the operation of a furnace, a grate bar is not used as a single grate bar, but as a grate bar arrangement with several grate bars.
  • An upper grate bar with its grate bar head is movably arranged relative to a lower grate bar in such a way that the grate bar head can slide over a front and a rear area of the running surface of the grate bar.
  • the running surface has air slots in the front and rear areas and the grate bar head is displaceable relative to these air slots in such a way that the opening cross-section of all ventilation slots remains constant.
  • Grate bars arranged one above the other can be moved relative to one another and grate bars arranged next to one another can either be movable relative to one another or can also be screwed tightly to one another.
  • the object on which the invention is based is achieved with a method for operating a grate bar arrangement with several grate bars, each with a running surface and a grate bar head, in which an upper grate bar with its grate bar head is moved relative to a lower grate bar in such a way that the grate bar head slides over a front and a rear area of the running surface of the grate bar.
  • the running surface has air slots in the front and rear area and the grate bar head is displaced relative to these air slots in such a way that the opening cross-section of all ventilation slots remains constant.
  • This grate bar arrangement does not have to contain all of the grate bars of the furnace. It is sufficient if these grate bars are arranged in an area of several grate bars arranged one above the other and are provided with air slots in such a way that the opening cross-section of all ventilation slots remains essentially constant even during operation.
  • the in Figure 1 The grate bar 1 shown has a grate bar head 2, two side walls 3 and 4 and a running surface 5.
  • the grate bar head is located in a front region of the grate bar 1 2 and behind it lies the running surface 5 in a rear region of the grate bar 1. Below the running surface 5, between the side walls 3 and 4, the underside 6 of the grate bar 1 is located.
  • the air slots 9 and 10 are only arranged in the area of the running surface 5 and not in the area of the grate bar head 2. As a result, the air slots 9, 10 are completely passed over by a grate bar head of another grate bar pushed onto the running surface 5.
  • the front flank 11 and the rear flank 12 of the air slot 9 are each arranged at an acute angle to the running surface 5, so that the cross-sectional area 13 (cf. Figure 6 ) expanded from the running surface 5 to the bottom 6 of the grate bar 1.
  • the expansion of the cross-sections 13 and 14 from the running surface 5 to the underside 6 of the grate bar 1 is also reinforced by the fact that the recesses 7 and 8 are arranged between the flanks 11 and 12 or 15 and 16 at an acute angle to the running surface 5 that the cross-sectional area 13, 14 of the air slots 9, 10 expands from the running surface 5 to the bottom 6.
  • the Figure 6 shows how several grate bars 1, 21, 22 are arranged next to one another in order to provide running surfaces 5, 23, 24 with air slots 25 to 28 in between, essentially in one plane.
  • the Figure 7 shows how the grate bar heads 29 and 30 of further grate bars 31 and 32 slide along the running surfaces 5 and 23 of the grate bars 1 and 21.
  • the grate bar heads 29 and 30 move over the air slots 9, 10 and 27 and 28 of the grate bars 1 and 21 in order to push material of the combustion bed lying on the running surfaces 5 and 23 away from the air slots 9, 10 and 27 and 28.
  • the front end of the grate bar head 2, 29, 30 has a special shape that, depending on the intended use and area of use - as in the Figures 8, 9 and 10 shown in cross section - can be formed.
  • the in Figure 8 The grate bar head 33 shown has a lower end 34 with a sliding surface 35 which has a cut edge 37 at the front end of the grate bar head 33.
  • This cutting edge 37 has an acute angle 38 between the sliding surface 35 and a pushing surface 36.
  • the inside 40 serves as a clearing strip, which is in the in Figure 8
  • the exemplary embodiment shown is designed as a pushing edge 41 in the transition to the sliding surface 35.
  • This pushing edge 41 has an obtuse angle 42 between the sliding surface 35 and a pushing surface 40.
  • FIG Figure 8 has an arc with a radius of approximately 6 mm and a circular sector of approximately 105 ° as the pushing edge 41
  • FIG Figure 9 a cutting edge 46 on the grate bar head 45 - as in Figure 8 -
  • a pushing edge 41 in cross section a training as a corner with an obtuse angle.
  • the Figure 10 shows a grate bar head 50 with a cut edge 51 with an acute angle 52 in the front area of the sliding surface 53 and a further cutting edge 54 with an acute angle 55 in the rear area of the sliding surface 53 of the grate bar head 50.
  • the Figures 2 to 5 show two-part bolts 60, 61, each consisting of a screw 62, 63 and a nut 64, 65.
  • the screw 62 has a screw head 66 with an internal polygon 67 and the screw 63 has a screw head 68 a mushroom-shaped training.
  • the bolt 60, 61 has a bolt head with a round cross-section, which is either arranged in the wall of the adjacent grate bar ( Figure 3 ) or under the underside 69 of the adjacent grate bar ( Figure 5 ).
  • the undersides 6 and 69 of adjacent grate bars 1 and 23 are essentially flat between the side walls 3 and 4 in the area of the bolts 60 and 61, so that the screws 62 and 63 and the nuts 64 and 65 are easily accessible.
  • Each grate bar 1, 23 has a bolt window 70, 71 on one side wall 3 and a bolt 60, 61 on the opposite side wall 4, so that when the grate bars 1, 23 are adjacent one bolt 60, 61 is in the bolt window 70, 71 of the neighboring one Latch can intervene.
  • the bolt window 70, 71 can receive the bolt 60, 61 of the adjacent grate bar in the upper area and have an opening (not shown) on its side opposite the running surface 5.
  • the grate bar shown has only a single bolt 66 and a core bar 80 is cast into the grate bar 1.
  • This cast-in core rod 80 lies under the running surface in such a way that it does not touch the running surface.
  • Cast in means that the core bar is preferably completely surrounded by the rest of the material of the grate bar and is thus completely encased by other material.
  • the Figure 21 shows how the core bar 80 bends when the grate bar 1 breaks and how it bridges this gap 81 and holds the fractions 82, 83 of the grate bar 1 together when a gap 81 occurs during the break.
  • Figures 15 to 17 show a grate bar arrangement 90 with two fixed grate bars 91 and 92 and a movable grate bar 93 arranged between them Figures 15 to 17 it can be seen how the movable grate bar 93 between the fixed grate bars 91 and 92 of the in Figure 15 lower position shown in Figure 16 middle position shown in Figure 17 upper position shown can be pushed.
  • the grate bars 91 and 93 have a running surface 98, 99 and each a grate bar head 100, 101 and the grate bar 93 is movably arranged as an upper grate bar with its grate bar head 101 relative to the grate bar 91, which serves as a lower grate bar.
  • the grate bar head 101 slides over a front area 102 and a rear area 103 of the running surface 98 of the grate bar 91.
  • the air slot 95 in the rear area 103 is passed over by the grate bar head 101 of the grate bar 93, so that the air slot 95 then - as in Figure 16 - is covered by the grate bar head 101 of the grate bar 93.
  • the air slot 96 in the grate bar 93 which was previously covered by the grate bar 92, is exposed.
  • the grate bar position shown open the louvers 94 and 95 while in the FIG Figure 16 position shown the louvers 94 and 96 are open.
  • the Figure 17 shows the grate bar 93 pushed completely upwards, which now covers both the air slot 95 and the air slot 94 of the grate bar 91.
  • the air slots 96 and 97 of the movable grate bar 93 are exposed, so that two air slots are again exposed in this position of the movable grate bar 93.
  • This example of a grate bar arrangement shows how the arrangement of the air slots 94, 95, 96, 97 in the area of the running surfaces 98, 99 makes it possible to always ensure that the opening cross-section of all air slots remains constant during the movement of the grate bars.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Incineration Of Waste (AREA)
  • Metal Rolling (AREA)
EP21000116.0A 2020-05-25 2021-04-26 Barreau de grille, agencement de barreau de grille et procédé de fonctionnement d'un dispositif de barreau de grille Active EP3926237B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22174061.6A EP4067744B1 (fr) 2020-05-25 2021-04-26 Agencement de barreau de grille et procédé permettant de faire fonctionner un agencement de barreau de grille

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020003114.5A DE102020003114A1 (de) 2020-05-25 2020-05-25 Roststab, Roststabanordnung und Verfahren zum Betreiben einer Roststabanordnung

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP22174061.6A Division EP4067744B1 (fr) 2020-05-25 2021-04-26 Agencement de barreau de grille et procédé permettant de faire fonctionner un agencement de barreau de grille
EP22174061.6A Division-Into EP4067744B1 (fr) 2020-05-25 2021-04-26 Agencement de barreau de grille et procédé permettant de faire fonctionner un agencement de barreau de grille

Publications (4)

Publication Number Publication Date
EP3926237A2 true EP3926237A2 (fr) 2021-12-22
EP3926237A3 EP3926237A3 (fr) 2022-02-23
EP3926237C0 EP3926237C0 (fr) 2023-12-13
EP3926237B1 EP3926237B1 (fr) 2023-12-13

Family

ID=75728540

Family Applications (2)

Application Number Title Priority Date Filing Date
EP21000116.0A Active EP3926237B1 (fr) 2020-05-25 2021-04-26 Barreau de grille, agencement de barreau de grille et procédé de fonctionnement d'un dispositif de barreau de grille
EP22174061.6A Active EP4067744B1 (fr) 2020-05-25 2021-04-26 Agencement de barreau de grille et procédé permettant de faire fonctionner un agencement de barreau de grille

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22174061.6A Active EP4067744B1 (fr) 2020-05-25 2021-04-26 Agencement de barreau de grille et procédé permettant de faire fonctionner un agencement de barreau de grille

Country Status (6)

Country Link
US (2) US11906162B2 (fr)
EP (2) EP3926237B1 (fr)
JP (1) JP7235799B2 (fr)
DE (1) DE102020003114A1 (fr)
PL (1) PL4067744T3 (fr)
SG (1) SG10202104656WA (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112021025791A2 (pt) * 2019-07-05 2022-05-10 Hitachi Zosen Inova Ag Bloco de grelha para uma grelha de incineração
BR112021025942A2 (pt) * 2019-07-05 2022-02-22 Hitachi Zosen Inova Ag Bloco de grelha para uma grelha de incineração
EP3982044B1 (fr) * 2020-10-08 2024-04-24 Martin GmbH für Umwelt- und Energietechnik Procédé pour maintenir ensemble des barreaux de grille adjacents, ainsi qu'un ensemble de barreaux de grille

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2614304A1 (fr) 2010-09-09 2013-07-17 Tiska GmbH Barreau de grille pour four avec conduits d'airgrate bar for a furnace comprising air ducts

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE416243C (de) 1923-02-11 1925-07-10 Evaporator Akt Ges Fa Deutsche Roststab fuer Unterwindfeuerungen
US1931003A (en) * 1932-12-19 1933-10-17 Nathan K Kramaroff Water heater
US2879727A (en) * 1953-06-29 1959-03-31 Arthur L Walters Furnace sawdust burners
JPS53130204U (fr) * 1977-03-25 1978-10-16
DE2808057C2 (de) 1978-02-24 1980-02-14 Josef Martin Feuerungsbau Gmbh, 8000 Muenchen Rostbelag für mechanisch bewegte stufenförmige Feuerungsroste von Großfeuerungen
FR2609530B1 (fr) * 1987-01-09 1991-01-11 Traitement Indl Residus Urbain Grille de foyer, avec des barreaux transversaux en elements solidarises par leurs faces frontales
CH684118A5 (de) * 1993-04-20 1994-07-15 Doikos Investments Ltd Verfahren zum Verbrennen von Kehricht auf einem Verbrennungsrost sowie Verbrennungsrost zur Ausübung des Verfahrens und Rostplatte für einen solchen Verbrennungsrost.
ATE165433T1 (de) * 1993-10-21 1998-05-15 Asea Brown Boveri Rost für eine feuerungsanlage
DE19528310A1 (de) * 1995-08-02 1997-02-06 Abb Management Ag Rost für eine Feuerungsanlage
US5551356A (en) * 1995-10-11 1996-09-03 Powerhouse Technology, Inc. Two piece grate clip for use as a power generator maintenance part
DE19648128C2 (de) 1996-11-21 2002-11-07 Alstom Rost für eine Feuerungsanlage
DE19851471A1 (de) * 1998-11-09 2000-05-11 Mitteldeutsche Feuerungs Und U Durchfallarmer Vorschubrostbelag
DE19907944A1 (de) * 1999-02-25 2000-09-07 Saacke Gmbh & Co Kg Rostplatte für einen Vorschubrost
DE102009016523A1 (de) * 2009-04-08 2010-11-25 Baumgarte Boiler Systems Gmbh Roststab für einen Verbrennungsofen und Verfahren zur Herstellung eines Roststabes
KR101346218B1 (ko) * 2011-11-14 2014-01-02 일도바이오테크주식회사 내열성 및 내마모성이 우수한 화격자를 구비한 보일러

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2614304A1 (fr) 2010-09-09 2013-07-17 Tiska GmbH Barreau de grille pour four avec conduits d'airgrate bar for a furnace comprising air ducts

Also Published As

Publication number Publication date
JP7235799B2 (ja) 2023-03-08
US20230392787A1 (en) 2023-12-07
SG10202104656WA (en) 2021-12-30
PL4067744T3 (pl) 2024-04-08
US11906162B2 (en) 2024-02-20
EP3926237C0 (fr) 2023-12-13
EP4067744A1 (fr) 2022-10-05
EP3926237B1 (fr) 2023-12-13
EP4067744C0 (fr) 2023-10-25
JP2021188894A (ja) 2021-12-13
EP4067744B1 (fr) 2023-10-25
EP3926237A3 (fr) 2022-02-23
US20210364164A1 (en) 2021-11-25
DE102020003114A1 (de) 2021-11-25

Similar Documents

Publication Publication Date Title
EP3926237B1 (fr) Barreau de grille, agencement de barreau de grille et procédé de fonctionnement d'un dispositif de barreau de grille
EP1992897B1 (fr) Procédé et dispositif destinés à refroidir une couche de produits en vrac se trouvant sur une grille de transport
EP1617143B1 (fr) Barreau de grille, grille et incinerateur équipés dudit barreau
EP0389789B1 (fr) Dispositif pour extraire des déchets d'un liquide courant dans un égout
EP0206174B1 (fr) Barreau à feu pour une grille d'un chauffage de grande dimension et grille pour un tel chauffage
AT506411B1 (de) Rost für feste brennstoffe
EP2487414B1 (fr) Barreau de grille
EP0086488A2 (fr) Dispositif de déchargement pour four à tambour rotatif
EP0499912A2 (fr) Barreau de grille et grille pour installations de combustion
DE102017100408A1 (de) Rost für Feuerungsanlagen
DE19622423C1 (de) Rostelement und Rost für Verbrennungsanlagen sowie Verfahren zum Betrieb des Rostes
AT514565B1 (de) Ofen mit einer einen Brennraum bildenden Brennkammer
EP2562477A1 (fr) Dispositif de décrassage destiné à la sortie de résidus de combustion d'une installation de combustion
EP1612483A2 (fr) Elément de grille, grille de combustion associée et installation d'incinération de matière résiduelle
DE2809845C2 (de) Rostbelag, insbesondere für Großfeuerungen
WO1998030840A1 (fr) Dispositif de charge de dechets et procede de charge d'une chambre a dechets ou d'un dispositif de transport de dechets
DE2654961A1 (de) Verschleisschutzplatte
EP3348903B1 (fr) Bloc de grillage
DE102022109943A1 (de) Rostbahntrennungselement
DE102020003219A1 (de) Roststein mit Stirnluftramme
DE969643C (de) Mit Vorspruengen versehene Rostglieder bei bewegten Feuerungsrosten, insbesondere Vor- und Rueckschubrosten
DE67536C (de) Treppenrost mit T- förmigen Roststäben
DE19712801C2 (de) Brennraum
EP4394249A2 (fr) Bloc de grille pour une grille de combustion
DE9002711U1 (de) Heizvorrichtung, insbesondere Feststoff-Heizvorrichtung

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

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

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

RIC1 Information provided on ipc code assigned before grant

Ipc: F23H 17/00 20060101ALI20220119BHEP

Ipc: F23H 7/08 20060101AFI20220119BHEP

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220621

RBV Designated contracting states (corrected)

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

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20221103

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230725

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

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: DE

Ref legal event code: R096

Ref document number: 502021002139

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

U01 Request for unitary effect filed

Effective date: 20231220

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT SE SI

Effective date: 20240103

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

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: 20240314

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

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: 20231213

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

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: 20240314

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: 20231213

U20 Renewal fee paid [unitary effect]

Year of fee payment: 4

Effective date: 20240424

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

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: 20231213

Ref country code: HR

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: 20231213

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

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: 20240413

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

Ref country code: CH

Payment date: 20240501

Year of fee payment: 4

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

Ref country code: CZ

Payment date: 20240419

Year of fee payment: 4

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

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: 20231213

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: 20231213

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: 20231213

Ref country code: RO

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: 20231213

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: 20240413

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

Ref country code: NO

Payment date: 20240422

Year of fee payment: 4

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

Ref country code: PL

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: 20231213

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

Ref country code: PL

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: 20231213

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

Ref country code: TR

Payment date: 20240419

Year of fee payment: 4