WO2006117478A1 - Barreau de grille et grille pour foyer a gradins solidaires - Google Patents
Barreau de grille et grille pour foyer a gradins solidaires Download PDFInfo
- Publication number
- WO2006117478A1 WO2006117478A1 PCT/FR2006/000993 FR2006000993W WO2006117478A1 WO 2006117478 A1 WO2006117478 A1 WO 2006117478A1 FR 2006000993 W FR2006000993 W FR 2006000993W WO 2006117478 A1 WO2006117478 A1 WO 2006117478A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bar
- plate
- bars
- angle
- longitudinal projection
- Prior art date
Links
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
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H1/00—Grates with solid bars
- F23H1/02—Grates with solid bars having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H15/00—Cleaning arrangements for grates; Moving fuel along grates
-
- 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
- F23H3/00—Grates with hollow bars
- F23H3/04—Grates with hollow bars externally cooled, e.g. with water, steam or air
Definitions
- the present invention relates to a grid bar and a grid for stepped hearth. It finds particular application in the field of furnaces for waste recovery units, such as ordinary waste, industrial, household, or hospital waste water sludge, or flours.
- Furnaces truly designed for the incineration of waste have existed for a long time, and have undergone a constant evolution to the present day.
- furnaces such as grid, roller or fluidized bed furnaces, in which the waste is discharged by a hopper onto a carpet consisting of moving steps which stir and push the waste into the chambers. of combustion.
- furnaces allow the combustion of waste, thus reducing the production of pollutant.
- the oven In a recovery unit, the oven is the part where the waste is dried and where their combustible fraction is oxidized.
- a high-performance furnace must be designed so that the waste is well distributed on the combustion support, and is properly stirred. This mixing allows the waste to come into contact with the hot air coming from the oven in order to dry them, to distil the volatile materials and to break down the products into simple molecules which finally reach their ignition temperature.
- the quality of the combustion is related mainly to the oxygen content which must be sufficient, at the temperature which must be high, to the controlled turbulence which must be sufficient for a good combustion. while avoiding flights of dust constituting fly ash, and a sufficient residence time of the waste on the grid.
- Most of the known grids comprise bars whose main section has an inverted "U" shape, that is to say a plate and two lateral legs, which are assembled so as to form a movable step, in which some bars move in limited translation relative to others, in order to advance the particles and to evacuate them.
- One of the disadvantages of this type of bars is that the path that the particles must travel along the legs of the bars, before being completely evacuated under these bars, is long. It corresponds to the length of the legs of the bar.
- One of the consequences is that the particles heat longer and may stick on, under or between the bars.
- Some grids are known whose bars have a main section in the form of "T”, that is to say with a plate is a portion projecting longitudinally under the plate. These bars partly limit the aforementioned disadvantage of the main section bars in the shape of "U” reversed, since the path traveled by the particles in evacuation between the bars corresponds to the thickness of the plate, so is shorter.
- these bars do not prevent enough progressive accumulation between and under the bars of refractory materials. This accumulation can then cause in particular the paralysis of the back and forth of the bars. It can also cause the amplification of the spacings between the bars, which contributes to the blockage of the grid movements and increases the difficulties of adjusting the combustion. This may indeed require a stop production to clean or change one or more bars, especially because of mechanical wear as a result of this gradual accumulation of refractory materials.
- the problem then is to prevent the accumulation progressive between and under the bars of the refractory materials, in order to ensure effective evacuation of these refractory materials, to ensure the relative movement of the bars, increase the life of each bar, and facilitate the adjustment of combustion.
- the object of the invention is therefore to provide a solution to the aforementioned problems among other problems.
- the invention thus relates, in a first aspect, to a grate bar for an incineration furnace hearth.
- the bar comprises a plate whose upper surface is intended to receive the incinerated elements and which extends into a rear end and a front end each forming a return serving as a fulcrum to the bar.
- the bar also comprises a longitudinal projection located under the plate and which extends at least partially between the rear and front ends of the bar.
- at least one angular cutting element, or knife is disposed under the plate, on a first side of the longitudinal projection.
- the bar of the invention comprises at least one second angular cutting element located under the plate, a second side of the longitudinal projection.
- the bar comprises a plurality of angular cutting elements distributed under the plate, a first or each side of the longitudinal projection.
- each of the angular cutting elements is situated against the lower surface of said plate and perpendicular to this lower surface, and / or each of these angular cutting elements is located against one or the other side of the longitudinal projection. (6) and perpendicular to this side.
- the angular cutting elements favor, during the relative movements of a bar relative to the adjacent bar, the evacuation of refractory materials which accumulate gradually. between, on and under the bars.
- the bar of the invention comprises at least one wing disposed under the plate, a first side of the longitudinal projection.
- this wing disposed beneath the plate is provided with at least one lateral recess which defines, with the lateral recess of a wing of a first adjacent bar, a duct passage of air to the front end of the bar.
- the bar of the invention comprises at least one second wing disposed under the plate, a second side of the longitudinal projection. This second wing is provided with a lateral recess which defines, with the lateral recess of a wing of a second adjacent bar, a second duct passage of the air to the front end of the bar.
- the bar comprises a plurality of wings distributed under the plate, along the longitudinal projection, of a first or each side of this longitudinal projection.
- These wings are provided with respective lateral recesses which define, with the respective lateral recesses of the wings of one or more neighboring bars (9, 13), passages.
- These passages in turn define, from the first or each side of the longitudinal projection, a channel for channeling the air to the front end of the bar.
- the passages are delimited at least partially by the upper surface of the tray, so that the ducted air circulates just below this plate.
- the base of the front end of the bar has an angle of attack ⁇ greater than 0 °.
- this angle of attack ⁇ is between 2 ° and 10 °. More preferably, this angle of attack ⁇ is substantially equal to 3 °.
- the front end of the plate is provided, on at least one of the sides of the longitudinal projection, with a fin for redirecting the air coming from the passages defined by the lateral recesses, to at least one channel located in the upper part of the front end of the bar.
- the channel begins at the lower surface of the plate and perpendicular to the latter, and opens above the upper surface of the plate, parallel to the latter.
- the invention also relates, according to a second aspect, to an incineration furnace hearth grate which comprises at least one bar according to the first aspect of the invention presented above.
- the grid comprises at least one group of three bars according to the first aspect of the invention presented above, the central bar in this group being movable relative to the two side bars in the group.
- the bars in at least one of the groups are assembled by dowelling means which block the two lateral bars with respect to each other, and which leaves the central bar free in translation, between two extreme positions, by compared to the two lateral bars.
- the invention therefore advantageously, particularly during the relative movements of a bar relative to the neighboring bar, to evacuate the refractory materials which accumulate gradually between, on and under the bars.
- the structure with a plate and a longitudinal projection under this plate which gives the assembly a main section in the shape of "T” makes it possible to obtain a short path of evacuation of the particles between each bar .
- the presence of angular cutting elements, or knives allows, during relative movements of the bars relative to each other, to cut any particles that accumulate between the bars.
- the shape, the position and the number of wings make it possible to accelerate the cooling of the bar from below.
- the shape of the front end of the bar in particular with the presence of the air redirection fin coming from the passages defined by the lateral recesses, towards a channel located in the upper part of the front end of the bar, allows an effective blowing of the combustion air, on the surface of the plate, towards the rear end of the bar, therefore of the grid, that is to say a blowing in the direction of the evacuation of the products.
- the angle of attack of the front end of the bar prevents the accumulation of particles at this location and thus the lifting of the bar.
- FIG. 1 schematically represents a set of three bars according to the invention, in cross section
- FIG. 2 schematically represents a portion of a bar according to the invention, in perspective
- FIG. 3 a schematically represents a portion of a bar according to FIG. the invention, seen from the side
- FIG. 3b schematically represents a portion of a bar according to the invention, seen from below and in perspective
- FIG. 1 schematically represents a set of three bars according to the invention, in cross section
- FIG. 2 schematically represents a portion of a bar according to the invention, in perspective
- FIG. 3 a schematically represents a portion of a bar according to FIG. the invention, seen from the side
- FIG. 3b schematically represents a portion of a bar according to the invention, seen from below and in perspective
- FIG. 1 schematically represents a set of three bars according to the invention, in cross section
- FIG. 2 schematically represents a portion of a bar according to the invention, in perspective
- FIG. 3 a schematically represents a portion of
- Figure 4 schematically represents the front end of a bar according to the invention, Side view, Figure 5a: schematically shows a grid formed of several bars assembled according to the invention, seen from below, Figure 5b shows schematically a detail of the assembly of three bars according to the invention, seen from below.
- Figure 1 shows schematically a set of three bars according to the invention, in cross section.
- each bar has a shape of " T " with, for the bar 1, a plate 3 which overcomes a longitudinal projection 6.
- This main section in the form of "T” offers among other advantages a level of geometric accuracy and optimized mechanics, and good resistance to deformation at high temperature due to its moment of inertia.
- the material used is preferably a refractory alloy which offers good resistance to hot abrasion, hot corrosion, oxidation and thermal shock.
- a method of manufacturing by molding allows the realization of such bars in highly alloyed and refractory alloys.
- the main section "T” form, completely demoldable, allows to use a molding process called "natural” which has the particular advantage of being cheaper compared to other more complex molding processes.
- Under the plate 3, a first flange 7 is disposed on a first side 6a of the longitudinal projection 6, and a second flange 11 can be disposed on another side 6b of this longitudinal projection 6.
- the flanges 7 and 11 have respectively lateral recesses 7a and 11a.
- the neighboring bars 9 and 13 also have wings 08 and 12, respectively.
- the wing 8 opposite the wing 7 of the bar 1, has a lateral recess 8a which is opposite the lateral recess 7a of the wing 7 of the bar 1.
- a passage 10 is formed between the bar 1 and the bar 9
- a passage 14 is formed between the bar 1 and the bar 13.
- the position of the lateral recesses in the wings that is to say the upper corner opposite the longitudinal projection of the bar to which each wing belongs, allows precisely the creation of passages just below the o respective trays of the bars. These passages are intended to channel the air to the front end of each bar.
- FIG. 2 diagrammatically represents a portion of a bar according to the invention, in perspective.
- the plate 3 there is the plate 3 and the longitudinal projection 6.
- the bar 1 is extended towards a front end 5 forming a return serving as a fulcrum to the bar 1.
- the longitudinal projection 6 effectively extends under the plate 3 from the front end 5 towards the rear end (not shown). It could possibly extend only partially under the plate 3 between the front end and the rear end.
- On one side 6a or on each side 6a and 6b of the longitudinal projection 6 may be arranged several wings: the wings 7, T and 7 "of a first side 6a, and the wings 11, 11 'and 11" of the other side 6b.
- the wings 7, T and 7 “respectively have lateral recesses 7a, 7a 'and 7a”.
- the wings 1 1, 1 V, and 11 “respectively have lateral recesses 11a, 11a 'and 11a" partially shown in view of the perspective.
- the number of these wings on each side of the longitudinal projection 6 is of course not limited to the invention, since the bar 1 is not shown in its entire length. The number of these wings will depend essentially on the length of the bar 1. This number is an important parameter for the acceleration of the cooling of the bar 1.
- the wings 7, 7 'and 7 ", and 11, 11', and 11" are shown perpendicular to the longitudinal projection 6 and inclined slightly with respect to the plate 3, towards the rear end (not shown) of the bar 1.
- this position is just one example and is not limiting of the invention. Indeed, these wings could just as well be positioned in an inclined manner, for example towards the rear, with respect to the longitudinal projection 6, and perpendicular to the plate 3.
- the position in the example of FIG. results compared to the objective sought which is the cooling of the bar 1 by the combustion air circulating between the wings.
- FIG. 2 symbolizes the circulation of this combustion air between the wings to promote the cooling of the bar.
- angular cutting elements 15, 15 'and 15 " also called angular elements or knives, on the side 6a of the longitudinal projection 6, under the plate 3.
- the number and the position of these angular elements are not limiting of the invention
- An appropriate position is a position which makes it possible to obtain a good cutting power of any particles between an angular element of a bar and a angular element of a neighboring bar.
- the bar 1 may also have one or more of these angular elements on the other side 6b of this longitudinal projection 6, which are not shown in view of the perspective.
- these angular elements or knives 15, 15 ', 15 are arranged against the lower surface 3b of the plate 3, perpendicular to the latter.
- they may be arranged against the side 6a or 6b of the longitudinal projection 6, perpendicularly to this side.
- Figure 3a shows schematically a portion of a bar according to the invention, seen from the side.
- the angular elements 15, 15 'and 15 are shown in solid lines, and the angular elements on the other side of the longitudinal projection 6 and / or a neighboring bar are shown in dashed lines (but not referenced).
- Figure 3b schematically shows a portion of a bar according to the invention, seen from below and in perspective.
- the angular elements are precisely arranged under the plate 3, against and perpendicular to the lower surface 3b of this plate 3. They are distributed on each side of the longitudinal projection 6, against and perpendicular to the respective sides of this projection longitudinal 6.
- Figure 4 shows schematically the front end of a bar according to the invention, seen from the side.
- the front end 5 of the bar forms a return whose base 5a serves as a fulcrum bar.
- This base 5a has an angle of attack ⁇ greater than 0 °.
- an effective angle of attack will be between 2 ° and 10 °.
- a good result is obtained especially with an angle of attack substantially equal to 3 °.
- This front end 5 of the bar further has, on one side or on each side of the longitudinal projection 6, a fin 16 of redirection of the air (the redirection being symbolized by the arrow going upwards from the bottom upwards) coming from the passages defined by the lateral recesses in the wings (not shown) along the longitudinal projection 6.
- the curved inner shape of this fin 16 actually favor the redirection of air.
- This air is redirected to a channel 18, on one side or on each side of the longitudinal projection 6.
- This channel 18 begins at the lower surface 3b of the plate 3, perpendicular to the plate 3. It then opens above of the upper surface 3a of the plate 3, parallel to this plate 3. The air leaving this channel 18 is symbolized by the arrow towards the rear end (not shown) of the bar.
- This channel 18 may have a circular section, possibly of input diameter, that is to say at the lower surface 3b of the plate 3, greater than the output diameter, that is to say above the upper surface 3a of the plate 3.
- FIG. 5a schematically shows a grid formed of several bars assembled according to the invention, seen from below.
- the grid 2 comprises two groups 20 and 20 'each of three bars, respectively 1, 9, 13 and 1', 9 ', 13'.
- the central bar 1 or 1 ' is movable relative to the side bars 9 and 13 or 9' and 13 'which remain fixed.
- the movements of these central bars 1 and 1 'relative to their respective adjacent bars 9, 13 and 9', 13 ' are symbolized by arrows in the direction of the longitudinal axis of the bars, in both directions.
- dowelling means 21, 22, 23 for the group 20 (highlighted in the circular area D), which will be described in more detail in relation to Figure 5b, and 21 ', 22' and 23 'for the group 20'.
- Figure 5b thus schematically shows the area D of the assembly of the three bars 1, 9 and 13 of the group 20 of Figure 5a, seen from below.
- the assembly is carried out at the front ends of the bars by dowelling means which comprise a threaded axial rod 21 and two blocking bolts, one 22 at a first lateral bar 9 with a right-hand thread, and the other 23 at the other side bar 13 with a thread on the left.
- dowelling means which comprise a threaded axial rod 21 and two blocking bolts, one 22 at a first lateral bar 9 with a right-hand thread, and the other 23 at the other side bar 13 with a thread on the left.
- the circular heads of the studs 22 and 23 each have a blocking flat (referenced 25 for the bolt 22 in FIG. 5a), and each is housed in a circular housing.
- each bar 9 and 13 each circular housing each also having a locking flat.
- the role of these locking flats is effectively to ensure the locking of the bars, both at the level of rotation about the axis of the rod 21, and at the translation of a neighboring bar 9 relative to the other neighboring bar 13.
- each bar has a longitudinal extension towards the rear in the form of a groove 27 of sufficient width to allow the passage of the rod 21.
- this assembly system by such doweling means ensures the freedom in translation of the central bar 1, in each group 20, 20 ', between two extreme positions, with respect to the two respective lateral bars 9, 13 and 9 ', 13'. Indeed the translational travel of the central bars 1, 1 'is limited by the length of the groove 27.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Gasification And Melting Of Waste (AREA)
- Incineration Of Waste (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06764590A EP1877703A1 (fr) | 2005-05-03 | 2006-05-03 | Barreau de grille et grille pour foyer a gradins solidaires |
AU2006243134A AU2006243134A1 (en) | 2005-05-03 | 2006-05-03 | Grate bar and grate for a step-grate stoker |
US11/912,909 US20080163860A1 (en) | 2005-05-03 | 2006-05-03 | Grate Bar and Grate for a Step-Grate Stoker |
BRPI0610897-0A BRPI0610897A2 (pt) | 2005-05-03 | 2006-05-03 | barra de grade e grade para forno com bancadas solidárias |
JP2008509471A JP2008540988A (ja) | 2005-05-03 | 2006-05-03 | 階段式火格子ストーカに用いられる火格子片及び火格子 |
CA002607137A CA2607137A1 (fr) | 2005-05-03 | 2006-05-03 | Barreau de grille et grille pour foyer a gradins solidaires |
NO20076182A NO20076182L (no) | 2005-05-03 | 2007-11-30 | Riststang og rist for en trinnristoker |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0504504A FR2885403A1 (fr) | 2005-05-03 | 2005-05-03 | Barreau de grille et grille pour foyer a gradins solidaires |
FR0504504 | 2005-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006117478A1 true WO2006117478A1 (fr) | 2006-11-09 |
Family
ID=35519958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2006/000993 WO2006117478A1 (fr) | 2005-05-03 | 2006-05-03 | Barreau de grille et grille pour foyer a gradins solidaires |
Country Status (11)
Country | Link |
---|---|
US (1) | US20080163860A1 (fr) |
EP (1) | EP1877703A1 (fr) |
JP (1) | JP2008540988A (fr) |
KR (1) | KR20080020598A (fr) |
CN (1) | CN101180500A (fr) |
AU (1) | AU2006243134A1 (fr) |
BR (1) | BRPI0610897A2 (fr) |
CA (1) | CA2607137A1 (fr) |
FR (1) | FR2885403A1 (fr) |
NO (1) | NO20076182L (fr) |
WO (1) | WO2006117478A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012032492A1 (fr) | 2010-09-09 | 2012-03-15 | Tiska Gmbh | Barreau de grille pour un four comprenant un moyen d'entrée en prise |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE7713314L (sv) * | 1976-12-17 | 1978-06-18 | Rohm & Haas | Artropodrepellenter |
CN103791504B (zh) * | 2014-02-24 | 2016-03-02 | 吕英 | 一种环保高效垃圾焚烧设备 |
FR3084444B1 (fr) * | 2018-07-27 | 2020-06-26 | Europeenne De Services Techniques Pour L'incineration | Procede de midification d'une grille de four d'incineration, elements support de sommier et four d'incineration |
CN110686263B (zh) * | 2019-10-09 | 2023-12-22 | 科能亚太铸造(武汉)有限公司 | 一种焚烧装置用炉条 |
CN110925766B (zh) * | 2019-12-13 | 2024-03-22 | 重庆科技学院 | 一种多刃复合固定炉排片 |
CN114659111A (zh) * | 2022-03-07 | 2022-06-24 | 北京高安屯垃圾焚烧有限公司 | 一种焚烧炉高效焚烧结构 |
KR102625230B1 (ko) * | 2023-01-27 | 2024-01-16 | 에이치엘에코텍 주식회사 | 화격자 블록, 스토커식 화격장치, 스토커식 소각로 및 폐기물 소각 시스템 |
Citations (9)
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US1338070A (en) * | 1919-04-21 | 1920-04-27 | Marion Foundry Corp | Grate-bar |
US1409205A (en) * | 1918-07-15 | 1922-03-14 | Combustion Eng Corp | Furnace grate bar |
US1715294A (en) * | 1927-06-13 | 1929-05-28 | Hulson Grate Company | Grate structure |
US2527872A (en) * | 1945-09-07 | 1950-10-31 | Dorothy B Balmfirth | Grate and grate bar |
DE1783200B1 (de) * | 1968-05-28 | 1979-10-31 | Prvni Brnenska Strojirna Zd Y | Verbrennungsrost fuer die Verbrennung von Stadt- und Industrieabfall |
US4239029A (en) * | 1978-02-24 | 1980-12-16 | Josef Martin Feuerungsbau Gmbh | Grate for industrial furnaces |
US4520792A (en) * | 1983-08-24 | 1985-06-04 | Martin Gmbh Fur Umwelt- Und Energietechnik | Grate bars for use in the grates of industrial furnaces and the like |
US4719900A (en) * | 1985-06-13 | 1988-01-19 | Martin Walter J | Grate for use in industrial furnaces |
DE3813441A1 (de) * | 1987-04-25 | 1988-11-03 | Mrklas Louis | Roststabelement fuer eine schubrostfeuerung zur muellverbrennung |
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US167230A (en) * | 1875-08-31 | Improvement in furnace grate-bars | ||
US378195A (en) * | 1888-02-21 | Ieon wobks | ||
US54349A (en) * | 1866-05-01 | David houstel | ||
US325852A (en) * | 1885-09-08 | Grate-bar | ||
US361397A (en) * | 1887-04-19 | Grate-bar | ||
US105948A (en) * | 1870-08-02 | William kearney | ||
US1385876A (en) * | 1921-07-26 | Sylvania | ||
US610674A (en) * | 1898-09-13 | Grate | ||
US310097A (en) * | 1884-12-30 | Grate | ||
US199707A (en) * | 1878-01-29 | Austeia | ||
US58252A (en) * | 1866-09-25 | Grate-bar | ||
US1337214A (en) * | 1919-06-11 | 1920-04-20 | Joseph J Fowden | Fire-grate |
US1553587A (en) * | 1924-06-10 | 1925-09-15 | Balmfirth Alfred | Grate |
US1823235A (en) * | 1928-11-05 | 1931-09-15 | Ernest E Lee Co | Furnace grate bar |
US1884557A (en) * | 1929-02-08 | 1932-10-25 | Firebar Corp | Fuel grate |
US1912886A (en) * | 1930-03-01 | 1933-06-06 | Firebar Corp | Furnace grate construction |
US2257287A (en) * | 1939-06-01 | 1941-09-30 | Comb Eng Co Inc | Grate bar |
US2372260A (en) * | 1942-06-09 | 1945-03-27 | Waugh Equipment Co | Grate bar |
US2806439A (en) * | 1952-11-08 | 1957-09-17 | Detroit Stoker Co | Grate |
US3014439A (en) * | 1960-07-11 | 1961-12-26 | Earland R Mitchell | Hollow stoker grate |
FR2885404A1 (fr) * | 2005-05-03 | 2006-11-10 | Saretco Sa | Barreau de grille et grille pour foyer a gradins solidaires avec combustion a air dirige |
-
2005
- 2005-05-03 FR FR0504504A patent/FR2885403A1/fr not_active Withdrawn
-
2006
- 2006-05-03 BR BRPI0610897-0A patent/BRPI0610897A2/pt not_active Application Discontinuation
- 2006-05-03 KR KR1020077025496A patent/KR20080020598A/ko not_active Application Discontinuation
- 2006-05-03 CA CA002607137A patent/CA2607137A1/fr not_active Abandoned
- 2006-05-03 AU AU2006243134A patent/AU2006243134A1/en not_active Abandoned
- 2006-05-03 CN CNA2006800152366A patent/CN101180500A/zh active Pending
- 2006-05-03 JP JP2008509471A patent/JP2008540988A/ja active Pending
- 2006-05-03 WO PCT/FR2006/000993 patent/WO2006117478A1/fr active Application Filing
- 2006-05-03 EP EP06764590A patent/EP1877703A1/fr not_active Withdrawn
- 2006-05-03 US US11/912,909 patent/US20080163860A1/en not_active Abandoned
-
2007
- 2007-11-30 NO NO20076182A patent/NO20076182L/no not_active Application Discontinuation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US1409205A (en) * | 1918-07-15 | 1922-03-14 | Combustion Eng Corp | Furnace grate bar |
US1338070A (en) * | 1919-04-21 | 1920-04-27 | Marion Foundry Corp | Grate-bar |
US1715294A (en) * | 1927-06-13 | 1929-05-28 | Hulson Grate Company | Grate structure |
US2527872A (en) * | 1945-09-07 | 1950-10-31 | Dorothy B Balmfirth | Grate and grate bar |
DE1783200B1 (de) * | 1968-05-28 | 1979-10-31 | Prvni Brnenska Strojirna Zd Y | Verbrennungsrost fuer die Verbrennung von Stadt- und Industrieabfall |
US4239029A (en) * | 1978-02-24 | 1980-12-16 | Josef Martin Feuerungsbau Gmbh | Grate for industrial furnaces |
US4520792A (en) * | 1983-08-24 | 1985-06-04 | Martin Gmbh Fur Umwelt- Und Energietechnik | Grate bars for use in the grates of industrial furnaces and the like |
US4719900A (en) * | 1985-06-13 | 1988-01-19 | Martin Walter J | Grate for use in industrial furnaces |
DE3813441A1 (de) * | 1987-04-25 | 1988-11-03 | Mrklas Louis | Roststabelement fuer eine schubrostfeuerung zur muellverbrennung |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012032492A1 (fr) | 2010-09-09 | 2012-03-15 | Tiska Gmbh | Barreau de grille pour un four comprenant un moyen d'entrée en prise |
WO2012032278A1 (fr) | 2010-09-09 | 2012-03-15 | Européenne De Services Techniques Pour L'incinération | Barreau de grille pour un foyer de combustion avec une tète remplaçable. |
WO2012032490A1 (fr) | 2010-09-09 | 2012-03-15 | Tiska Gmbh | Barreau de grille pour four avec conduits d'air grate bar for a furnace comprising air ducts |
US9371996B2 (en) | 2010-09-09 | 2016-06-21 | Tiska Gmbh | Grate bar for a furnace comprising air ducts |
US9803858B2 (en) | 2010-09-09 | 2017-10-31 | Tiska Gmbh | Grate bar for a furnace comprising engaging means |
US10670266B2 (en) | 2010-09-09 | 2020-06-02 | Cronite Cz S.R.O. | Grate bar for a furnace comprising engaging means |
Also Published As
Publication number | Publication date |
---|---|
AU2006243134A1 (en) | 2006-11-09 |
EP1877703A1 (fr) | 2008-01-16 |
KR20080020598A (ko) | 2008-03-05 |
JP2008540988A (ja) | 2008-11-20 |
BRPI0610897A2 (pt) | 2010-08-03 |
NO20076182L (no) | 2008-01-30 |
FR2885403A1 (fr) | 2006-11-10 |
CA2607137A1 (fr) | 2006-11-09 |
US20080163860A1 (en) | 2008-07-10 |
CN101180500A (zh) | 2008-05-14 |
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