EP0304514B1 - Grate for fire-boxes, stoves and central-heating boilers - Google Patents

Grate for fire-boxes, stoves and central-heating boilers

Info

Publication number
EP0304514B1
EP0304514B1 EP19870201628 EP87201628A EP0304514B1 EP 0304514 B1 EP0304514 B1 EP 0304514B1 EP 19870201628 EP19870201628 EP 19870201628 EP 87201628 A EP87201628 A EP 87201628A EP 0304514 B1 EP0304514 B1 EP 0304514B1
Authority
EP
European Patent Office
Prior art keywords
grate
hearth
pivoting
free
grid
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
EP19870201628
Other languages
German (de)
French (fr)
Other versions
EP0304514A1 (en
Inventor
Jean Driesmans
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.)
Vfm Verkoop En Fabrikatie Van Metaalprodukten NV
Original Assignee
Vfm Verkoop En Fabrikatie Van Metaalprodukten NV
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 Vfm Verkoop En Fabrikatie Van Metaalprodukten NV filed Critical Vfm Verkoop En Fabrikatie Van Metaalprodukten NV
Priority to EP19870201628 priority Critical patent/EP0304514B1/en
Priority to DE8787201628T priority patent/DE3774877D1/en
Publication of EP0304514A1 publication Critical patent/EP0304514A1/en
Application granted granted Critical
Publication of EP0304514B1 publication Critical patent/EP0304514B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B13/00—Details solely applicable to stoves or ranges burning solid fuels 
    • F24B13/02—Arrangement or mountings of fire-grate assemblies; Arrangement or mountings of linings for fire-boxes, e.g. fire-backs 
    • 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

Definitions

  • the invention relates to a central heating hearth, stove or boiler, by means of which it is possible to substantially increase the combustion capacity and efficiency.
  • the grid consists of several elements.
  • the upper part, on which the coal or other fuels are burned, consists in this embodiment of a fixed rectangular grid 1 with oblong openings 2.
  • the central part 3 of this grid is spherical and the periphery of the grid is provided with lateral edges 4 , which adapt in depth 5 to the bottom 6 of the stove or hearth.
  • the grid is provided with openings 7.
  • the bottom 6 is provided with a recess 8 in the form of a saucer with a conical wall and the bottom of which has a circular opening 9.
  • a rotating circular grid 10 with a conical peripheral edge and radial openings 11 with a conical wall is provided in the recess 8 in the form of a saucer.
  • the central part of the rotating grid 10 has a hexagonal opening 12 with conical walls in which a hexagonal conical head 13 and bipartite with shaft 14 fits and by means of which the rotating grid 10 can be rotated in the recess 8 in the form of saucer.
  • the lower part of the shaft 14 has a rectangular cross section which is smaller than that of the hexagonal head 13.
  • the shaft 14 is slid into the rectangular opening of a lever 17 and fixed by means of a tenon 16 , which lever can rotate the rotating grid 10 in a horizontal plane.
  • the ash and the carbuncles which are between the fixed grid 1 and the rotating grid 10 are ground or pulverized, as a result of which the remaining ash descends more easily and is evacuated through the radial openings 11 of the rotating grid 10.
  • a circular shaking grid 18 on board conical device and radial openings 19 with conical wall which openings can, as will appear below, be rotated above the radial openings 11 of the rotating grate 10 so that the ash can be easily removed from the bottom 6 via these openings 11-19 and the circular opening 9.
  • the central part of the shaking grid 18 is provided with a central opening 20 with a diabolo or double cone shape (fig. 5), through which the part of the shaft 14 with rectangular cross section passes and whose dimensions are smaller as the dimensions of the central opening 20, so that when the shaft 14 rotates the rotating grid 10 this shaft only comes into contact with the walls of the central opening 20 and will rotate the shaking grid 18 after the grid rotating 10 is already rotated at a certain angle and the ash is sprayed between the fixed grid 1 and the rotating grid 10.
  • a shaking movement is transmitted to the shaking grid 18, which is moved for this in both horizontal and vertical.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Solid-Fuel Combustion (AREA)

Description

L'invention concerne un foyer, poêle ou chaudière de chauffage central, au moyen duquel il est possible de faire sensiblement monter la capacité et le rendement de combustion.The invention relates to a central heating hearth, stove or boiler, by means of which it is possible to substantially increase the combustion capacity and efficiency.

Connus sont des foyers et poêles pourvus d'une grille qui peut être mue en va-et-vient dans un plan horizontal ou dans une voie circulaire pour secouer tant soit peu le combustible sur la grille et faire ainsi descendre la cendre dans ce combustible et la faire finalement tomber dans le cendrier. Un tel foyer est connu du DE-936230.Known are fireplaces and stoves provided with a grate which can be moved back and forth in a horizontal plane or in a circular way to shake the fuel a little bit on the grate and thus bring down the ash in this fuel and finally drop it into the ashtray. Such a focus is known from DE-936230.

Il a toutefois été constaté qu'au moyen de ces foyers connus, il n'est pas possible d'obtenir une grande capacité ni rendement de combustion du foyer ou du poêle.However, it has been found that by means of these known stoves, it is not possible to obtain a large capacity or combustion efficiency of the hearth or the stove.

Pour y remédier, un foyer a été réalisé qui comprend les caractéristiques telles que décrites dans les revendications.To remedy this, a fireplace has been produced which includes the features as described in the claims.

Ainsi, au moyen d'une seule action à exécuter, un mouvement de secouement maximum est transmis à la grille du foyer. De ce fait, la cendre dans le combustible sur la grille descend mieux et tombe plus aisément dans le cendrier sous la grille, par suite de quoi la capacité et le rendement de la combustion dans le foyer sont sensiblement augmentés.Thus, by means of a single action to be executed, a maximum shaking movement is transmitted to the grid of the foyer. As a result, the ash in the fuel on the grate descends better and falls more easily in the ashtray under the grate, as a result of which the capacity and the efficiency of combustion in the hearth are significantly increased.

En faisant usage de la forme plus élaborée et décrite ci-dessous de la grille du foyer conforme à l'invention, il devient aussi possible de pulvériser la cendre et les escarbilles avant de les évacuer dans le cendrier et de secouer la combustion sur la grille d'une manière efficace, et tout cela moyennant une seule action à effectuer, ainsi qu'il ressortira de la description donnée ci-dessous.By making use of the more elaborate and described form of the grate of the hearth according to the invention, it also becomes possible to pulverize the ash and the carbuncles before discharging them into the ashtray and to shake off the combustion on the grate effectively, and all this with a single action to perform, as will become apparent from the description given below.

A titre d'exemple, une description est donnée ci-après d'une forme d'exécution choisie mais nullement limitée de la grille conforme à l'invention. Cette description renvoie aux dessins annexés, dans lesquels

  • la fig. 1 représente une coupe transversale des pièces constituantes de la grille, et ce suivant la ligne I-I de la fig. 2;
  • la fig. 2 en représente une vue d'en haut;
  • la fig. 3 représente une coupe d'un détail de la grille suivant la ligne III-III de la fig. 1;
  • la fig. 4 représente une vue d'en haut de la grille tournante;
  • la fig. 5 représente une vue d'en haut de la grille secouante.
By way of example, a description is given below of a chosen but in no way limited embodiment of the grid according to the invention. This description refers to the accompanying drawings, in which
  • fig. 1 shows a cross section of the constituent parts of the grid, and this along line II of FIG. 2;
  • fig. 2 shows a view from above;
  • fig. 3 shows a section of a detail of the grid along line III-III of FIG. 1;
  • fig. 4 shows a view from above of the rotating grid;
  • fig. 5 shows a top view of the shaking grid.

Dans ces figures on remarque que la grille se compose de plusieurs éléments. La partie supérieure, sur laquelle le charbon ou d'autres combustibles sont brûlés, se compose dans cette forme d'exécution d'une grille rectangulaire fixe 1 à ouvertures oblongues 2. La partie centrale 3 de cette grille est sphérique et la périphérie de la grille est pourvue de rebords latéraux 4, qui s'adaptent dans un approfondissement 5 du fond 6 du poêle ou du foyer. A côté des rebords latéraux la grille est pourvue d'ouvertures 7. Le fond 6 est pourvu d'un renfoncement 8 en forme de soucoupe à paroi conique et dont le fond possède une ouverture circulaire 9. Sous la grille fixe 1 une grille circulaire tournante 10 à bord périphérique conique et ouvertures radiales 11 à paroi conique est prévu dans le renfoncement 8 en forme de soucoupe. Par les parois latérales 4 de la grille fixe 1, la grille fixe 1 et la grille tournante 10 qui se trouve en-dessous sont maintenues à une certaine distance l'une de l'autre dont le but est expliqué ci-dessous. La partie centrale de la grille tournante 10 possède une ouverture hexagonale 12 à parois coniques dans laquelle s'adapte une tête 13 conique hexagonale et bipartite à arbre 14 et au moyen de laquelle la grille tournante 10 peut être tournée dans le renfoncement 8 en forme de soucoupe. La partie inférieure de l'arbre 14 possède une coupe transversale rectangulaire qui est plus petite que celle de la tête hexagonale 13. L'arbre 14 est glissé dans l'ouverture rectangulaire d'une manette 17 et fixé au moyen d'un tenon 16, laquelle manette peut tourner la grille tournante 10 dans un plan horizontal. Pendant la rotation de la grille tournante 10, la cendre et les escarbilles qui se trouvent entre la grille fixe 1 et la grille tournante 10 sont moulues ou pulvérisées, par suite de quoi la cendre restante descend plus facilement et est évacuée à travers les ouvertures radiales 11 de la grille tournante 10. Sous la grille tournante 10 et de même dans le renfoncement 8 en forme de soucoupe est placée une grille secouante circulaire 18 à bord périphérique conique et ouvertures radiales 19 à paroi conique, lesquelles ouvertures peuvent, comme il appraîtra ci-dessous, être tournées au-dessus des ouvertures radiales 11 de la grille tournante 10 de manière telle que la cendre peut être évacuée sans peine du fond 6 via ces ouvertures 11-19 et l'ouverture circulaire 9.In these figures we notice that the grid consists of several elements. The upper part, on which the coal or other fuels are burned, consists in this embodiment of a fixed rectangular grid 1 with oblong openings 2. The central part 3 of this grid is spherical and the periphery of the grid is provided with lateral edges 4 , which adapt in depth 5 to the bottom 6 of the stove or hearth. Next to the side edges, the grid is provided with openings 7. The bottom 6 is provided with a recess 8 in the form of a saucer with a conical wall and the bottom of which has a circular opening 9. Under the fixed grid 1 a rotating circular grid 10 with a conical peripheral edge and radial openings 11 with a conical wall is provided in the recess 8 in the form of a saucer. By the side walls 4 of the fixed grid 1, the fixed grid 1 and the rotating grid 10 which is located below are kept at a certain distance from each other, the purpose of which is explained below. The central part of the rotating grid 10 has a hexagonal opening 12 with conical walls in which a hexagonal conical head 13 and bipartite with shaft 14 fits and by means of which the rotating grid 10 can be rotated in the recess 8 in the form of saucer. The lower part of the shaft 14 has a rectangular cross section which is smaller than that of the hexagonal head 13. The shaft 14 is slid into the rectangular opening of a lever 17 and fixed by means of a tenon 16 , which lever can rotate the rotating grid 10 in a horizontal plane. During the rotation of the rotating grid 10, the ash and the carbuncles which are between the fixed grid 1 and the rotating grid 10 are ground or pulverized, as a result of which the remaining ash descends more easily and is evacuated through the radial openings 11 of the rotating grid 10. Under the rotating grid 10 and likewise in the recess 8 in the form of a saucer is placed a circular shaking grid 18 on board conical device and radial openings 19 with conical wall, which openings can, as will appear below, be rotated above the radial openings 11 of the rotating grate 10 so that the ash can be easily removed from the bottom 6 via these openings 11-19 and the circular opening 9.

Afin de faciliter cette évacuation, les ouvertures 19 sont un peu élargies dans la partie centrale. La partie centrale de la grille secouante 18 est pourvue d'une ouverture centrale 20 à diabolo ou forme de double cône (fig. 5), par laquelle la partie de l'arbre 14 à coupe transversale rectangulaire passe et dont les dimensions sont plus petites que les dimensions de l'ouverture centrale 20, de sorte que quand l'arbre 14 fait tourner la grille tournante 10 cet arbre entre seulement en contact avec les parois de l'ouverture centrale 20 et fera tourner la grille secouante 18 après que la grille tournante 10 est déjà tournée dans un certain angle et que la cendre est pulvérisée entre la grille fixe 1 et la grille tournante 10. Pour évacuer sans peine cette cendre, un mouvement secouant est transmis à la grille secouante 18, qui est mue pour cela dans un plan tant horizontal que vertical. Pour cela deux cames 21 disposées radialement sont prévues dans le renfoncement 8 en forme de soucoupe qui coopèrent avec deux évidements 22 radialement ondulés dans le pourtour de la grille secouante 18, grâce à quoi lorsque la grille secouante 18 est tournée dans un plan horizontal, elle oscillera dans un plan vertical. De ce fait, grâce à une seule action exécutée au moyen de la manette 17, la cendre entre la grille fixe 1 et la grille tournante 10 est pulvérisée et ensuite le combustible sur la grille 1 est secoué, de sorte que la cendre qui y est présente peut descendre et est conduite vers le cendrier du foyer 4 par les ouvertures radiales 11-19 des grilles 10-18, grâce à quoi la capacité et le rendement de combustion du foyer ou du poêle sont considérablement améliorés.In order to facilitate this evacuation, the openings 19 are slightly widened in the central part. The central part of the shaking grid 18 is provided with a central opening 20 with a diabolo or double cone shape (fig. 5), through which the part of the shaft 14 with rectangular cross section passes and whose dimensions are smaller as the dimensions of the central opening 20, so that when the shaft 14 rotates the rotating grid 10 this shaft only comes into contact with the walls of the central opening 20 and will rotate the shaking grid 18 after the grid rotating 10 is already rotated at a certain angle and the ash is sprayed between the fixed grid 1 and the rotating grid 10. To easily evacuate this ash, a shaking movement is transmitted to the shaking grid 18, which is moved for this in both horizontal and vertical. For this two cams 21 arranged radially are provided in the recess 8 in the form of a saucer which cooperate with two recesses 22 radially wavy in the periphery of the shaking grid 18, whereby when the shaking grid 18 is turned in a horizontal plane, it will oscillate in a vertical plane. Therefore, thanks to a single action performed by means of the lever 17, the ash between the fixed grid 1 and the rotating grid 10 is pulverized and then the fuel on the grid 1 is shaken, so that the ash which is there present can descend and is led towards the ashtray of the hearth 4 by the radial openings 11-19 of the grids 10-18, whereby the capacity and combustion efficiency of the fireplace or stove are considerably improved.

Claims (5)

  1. Hearth provided with a fixed bottom (6), a free grate (18) placed in the fixed bottom of the hearth, a grate (10) which pivots in the horizontal plane and mounted above the free grate (18) and a lever (17) for turning the pivoting grate (10), characterized by the fact that the hearth comprises :
    a- a turning mechanism (12 to 17 and 20) provided between the two grates (10-18) for pivoting the free grate (18) in the horizontal plane after the pivoting grate (10) has been turned to a given angle by means of the lever (17);
    b- a cam system (21-22) provided between the fixed base (6) of the hearth and the free grate (18), for shaking this grate in the vertical plane while it is being pivoted;
    c- a fixed grate (1) for burning the fuel and placed some distance above the pivoting grate (10), the cinders being pulverized between these grates.
  2. Hearth in accordance with claim 1, characterized by the fact that the turning mechanism consists of a central shaft (14) for turning the grates (10-18), the head (13) of which is polygonal and conical and which fits into a polygonal opening (12) with a conical outer end provided in the centre of the pivoting grate (10) and a polygonal and conical opening (20) provided in the centre of the free grate (18), which is larger than the transverse section of the lower part of the shaft (14) which is in contact only with the sides of said opening (20) to pivot the free grate (18), after the pivoting grate (10) is turned to a certain angle.
  3. Hearth in accordance with claim 2, characterized by the fact that the polygonal opening (20) is shaped like an hourglass or double cone.
  4. Hearth in accordance with claim 1, characterized by the fact that the cam system consists of two cams (21) installed radially on the bottom of the hearth (6) and two rippled recesses (22) provided in the shaking grate (18), which act in conjunction with said cams to shake the shaking grate (18) in the vertical plane during its rotation.
  5. Hearth in accordance with claim 1, characterized by the fact that the fixed grate (1) possesses a domed centre (3), is provided with rims at the edges (4) to hold it a certain distance from the pivoting grate (10) underneath and which is provided with openings (7) next to the rims at the edges.
EP19870201628 1987-08-28 1987-08-28 Grate for fire-boxes, stoves and central-heating boilers Expired - Lifetime EP0304514B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19870201628 EP0304514B1 (en) 1987-08-28 1987-08-28 Grate for fire-boxes, stoves and central-heating boilers
DE8787201628T DE3774877D1 (en) 1987-08-28 1987-08-28 RUST FOR FIREPLACE, OVEN AND BOILER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19870201628 EP0304514B1 (en) 1987-08-28 1987-08-28 Grate for fire-boxes, stoves and central-heating boilers

Publications (2)

Publication Number Publication Date
EP0304514A1 EP0304514A1 (en) 1989-03-01
EP0304514B1 true EP0304514B1 (en) 1991-11-27

Family

ID=8197657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870201628 Expired - Lifetime EP0304514B1 (en) 1987-08-28 1987-08-28 Grate for fire-boxes, stoves and central-heating boilers

Country Status (2)

Country Link
EP (1) EP0304514B1 (en)
DE (1) DE3774877D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI123850B (en) * 2007-04-05 2013-11-15 Pauli Pieti Rust
EP2957828A1 (en) * 2014-06-20 2015-12-23 Domusa Calefaccion, S. Coop. Burner that uses a granular-type solid biomass fuel
WO2016210317A2 (en) * 2015-06-26 2016-12-29 Universal Leaf Tobacco Company, Inc. Biomass fuel stove

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE83363C (en) *
DE936230C (en) * 1951-11-13 1955-12-07 Carl Alfred Simon Grate with two grate plates one above the other
GB1459023A (en) * 1974-04-17 1976-12-22 Abernethy A W G Method and improved unit for heating using solid

Also Published As

Publication number Publication date
DE3774877D1 (en) 1992-01-09
EP0304514A1 (en) 1989-03-01

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