EP1001218B1 - Grille de combustion refroidie par eau et procédé de combustion de déchets correspondant - Google Patents

Grille de combustion refroidie par eau et procédé de combustion de déchets correspondant Download PDF

Info

Publication number
EP1001218B1
EP1001218B1 EP99810954A EP99810954A EP1001218B1 EP 1001218 B1 EP1001218 B1 EP 1001218B1 EP 99810954 A EP99810954 A EP 99810954A EP 99810954 A EP99810954 A EP 99810954A EP 1001218 B1 EP1001218 B1 EP 1001218B1
Authority
EP
European Patent Office
Prior art keywords
grate
combustion
primary air
zone
water
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
EP99810954A
Other languages
German (de)
English (en)
Other versions
EP1001218A2 (fr
EP1001218A3 (fr
Inventor
Jakob Stiefel
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.)
Doikos Investments Ltd
Original Assignee
Doikos Investments Ltd
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 Doikos Investments Ltd filed Critical Doikos Investments Ltd
Publication of EP1001218A2 publication Critical patent/EP1001218A2/fr
Publication of EP1001218A3 publication Critical patent/EP1001218A3/fr
Application granted granted Critical
Publication of EP1001218B1 publication Critical patent/EP1001218B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/002—Incineration of waste; Incinerator constructions; Details, accessories or control therefor characterised by their grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L1/00—Passages or apertures for delivering primary air for combustion 
    • F23L1/02—Passages or apertures for delivering primary air for combustion  by discharging the air below the fire
    • 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
    • F23H2900/03021—Liquid cooled grates

Definitions

  • the invention relates primarily to a water-cooled combustion grate for waste or incineration. Secondly, the invention relates to a Process for incinerating waste or trash on such incineration grate.
  • Burning grates for the combustion of rubbish are in many different Executions known.
  • a special type of combustion grate is the so-called thrust combustion grate, which has moving parts includes that are capable of performing strokes, thereby causing the firing material to open the rust is promoted and stoked.
  • the firing material is in Conveyed forward direction for the loading of firing material, on the latter in the reverse direction to it, being in the forward direction due to the strong inclination of the Reverse grate rolls down due to gravity alone.
  • a mechanical one Drive device ensures that every such second grate level can perform a stroke, which is that these grate steps in the direction of fall their inclination to be moved back and forth collectively. So that is achieved that the burning garbage lying on the moving grate at a high Residence time of 45 to 120 minutes slowly transported and also relocated and evenly distributed on the grate.
  • the moving grate is loaded with rubbish.
  • the incoming garbage is initially affected by the garbage Heat radiation dried.
  • gassing sets in namely the solid components of the refuse change to the gaseous state and release energy. It then follows a primary combustion zone and then a burnout zone.
  • the moving grate is with a tiled roof to compare with reverse slope. It brings the advantage of being direct embers lying on the grate from the collectively moved grate steps is pushed back to the beginning of the grate, while the higher layers of the combustion bed roll down in the general direction of transport. From the start of rust to his At the end the primary combustion extends overlapping.
  • This intense, Garbage fire starting at the beginning of the grate is an essential feature of a moving grate. It is created by already burning garbage components with the upward conveying effect of the grate with not yet ignited Parts of the firing material are brought together and mixed, creating a zone very high temperature with high combustion intensity already at the beginning of the grate is produced.
  • the stoking movement consists on the one hand of the natural downward movement of the firing material due to gravity and the opposite acting pushing motion of the grate.
  • a sliding grate you can generate a certain buffer effect against fluctuations in the calorific value of the fired material, by tearing off the ignition or running away the fire Towards the end of the grate is reliably prevented.
  • Such return grids provide an evenly high burning layer without holes that covers the rust would leave and thus lead to its thermal wear.
  • the primary air supply can continue because the primary air from the Cooling function is relieved, local and time very fine to the actual need of fire can be adjusted by targeting through a number of feed openings is blown.
  • a combustion air supply defined at any time and at any location on the grate is the most important prerequisite for the operation of a waste furnace, which should have the lowest possible emissions. Reaching In practice, this goal is becoming more and more difficult due to the fact that quality of the refuse in the course of the operating life designed for at least 20 years a waste incineration plant varies. In addition to the basic physical and chemical composition of the garbage it is especially the very widely varying calorific value of the refuse, which causes problems. Rose the Calorific value just a few years ago as a result of commercial waste and sorting of difficultly flammable materials such as green waste and compostable Substances continuously to approx.
  • the object of the present invention is therefore one Water-cooled incineration grate for garbage and a method for the same
  • a water-cooled combustion grate for burning waste consisting of water-cooled, lying on top of each other Grate plates that cover part of the width of the grate or over the extend the entire width of the grate and form a grate step, at least every second grate stage is designed to be movable, and that of primary air supply openings is penetrated, through which individually or zone-wise metered air can be supplied to the fire, which is characterized in that the combustion grate consists of a combination of a feed and a return grate.
  • a water-cooled moving grate is referenced as an example shown on its basic structure, how it is for the realization of the Individual drive of the grate levels can be built.
  • this thrust combustion grate with its essential elements can be seen from Figure 1, regardless of whether it is in the individual case is a moving grate or a moving grate.
  • a moving grate shown in a perspective view as he presents itself during construction, where individual grate plates are still missing and thus the view of the substructure is clear.
  • Sliding grate is reversed.
  • Two vertically standing, parallel to each other side steel walls 1,2 are here a number of spacer tubes 3.4 stably connected to each other. These distance tubes 3,4 run across the grate and extend on two different ones Level over the clear width between the two side steel walls 1,2.
  • the two steel walls 1,2 left and right of the grate can consist of several Steel plates or parts consist of each other in an appropriate manner are screwed.
  • the spacer tubes 3, 4 penetrate these steel walls a thread on both sides and are by means of cones and nuts 7 firmly screwed to the side steel walls 1,2.
  • the spacer or cross tubes 3 of the upper level also serve as support tubes for those on them stationary grate plates 5.
  • the lowest stationary grate plate 5 lies with its front edge on a fixed between the side steel walls 1,2 welded ejection lip 22, and with its rear area it is hung over the first upper spacer or cross tube 3.
  • the grate plates therefore each extend over the entire width of the grate track and thus form a grate step.
  • the individual grate plates are on their bevelled front of primary air slots 25 interspersed with primary air from below the grate the combustion is blown into the firing material.
  • the individual grate plates are on their bevelled front of primary air slots 25 interspersed with primary air from below the grate the combustion is blown into the firing material.
  • Hollow profiles in the form of square tubes 8.9, the ones at their lower level Are closed by being welded there. These square tubes 8,9 form the side planks of the grate run and limit this in operation Firing bed laterally.
  • the individual grate plates 5,6 are made of sheet steel and also designed as a hollow body, which is inevitably made of water are flowed through that their cavity is always completely filled with water and no air bubbles can form inside. All steel sheet parts of the grate, be it the side planks 8.9 or the grate plates 5.6, which with coming into contact with the firing material are therefore on the rear side of the sheet constantly covered by water. So everyone can come into contact with fire Parts are constantly cooled and kept at a stable temperature so that practically no dilations occur. It is therefore not necessary to the side of the Provide any compensation elements.
  • the stability of the rust construction is essentially achieved by the spacer or transverse tubes 3.4, which in two brace the two outer steel walls 1, 2 parallel planes and tense up, as has already been described.
  • One of the square tubes, namely the square tube 10 leads from bottom up the cooling water for the grate plates 5,6 while the other Square tube 11 purge air and cooling air for the drives of the movable grate plates 6 feeds.
  • support elements 12 are installed for the movable grate plates 6.
  • these support elements 12 are by means of two bolts 13, 14, which are the two Push through square tubes 10,11, held on them.
  • hollow profiles 10, 11 have welded cross tubes with a such an inner diameter that the retaining bolts 13,14 for the support elements 12 fit into this.
  • the support elements 12 themselves each have a parallel to corresponding rust plate level lying steel roller 15, and left and on the right a steel roller 16, 17 running there in the vertical plane.
  • a hydraulic cylinder 18 is articulated on each such support element 12, the Piston rod 19 in turn on the underside of the movable it moves Grate plate 6 is articulated.
  • the grate plate itself which is shown on the here Support element 12 rests, is only indicated here with dashed lines.
  • On its underside it has a central guide groove with which it rests on the steel rollers 16, 17, which when moving the grate plate on the Unroll the bottom of this guide groove.
  • the clear width of the guide groove is chosen so that they are slightly larger than the diameter of the lying steel roll 15, whereby the grate plate from the roller 15 in the transverse direction to the grate track is sufficient is led.
  • To guide the front of the movable grate plate are 8 additional steel rollers 20, 21 attached to the planks.
  • the associated movable grate plate now has such on the front underside Recesses so that a guide surface is formed on each side, which runs parallel to the side surface of the grate plate, but opposite it is set back, and on which these steel rollers 20,21 when moving back and forth unroll.
  • Each movable grate plate thus has one Three-point bearing on.
  • the grate plate guided horizontally and vertically by the corresponding steel rollers 15, 16, 17, and at the front it is guided to the left and right by the steel rollers 20, 21, while with their front lower edge on the next lower stationary one
  • the grate plate rests and slides on it when it is moved back and forth.
  • the lower edge is specially provided with a sliding block made of wear material, which can be replaced from time to time without the actual The grate plate must be replaced.
  • An advantage of the one described here Construction is now that the movable grate plates are precisely guided and there is no more lateral friction because the lateral guidance is set so that between the side edge of the movable grate plate 6 and the adjacent plank 8 a constant short distance is maintained so that no jamming small parts can fall into this slot and at the same time but the slot is so wide that there is no sliding friction. The Because of this precise guidance, the grate plate can no longer tilt, as was still possible with conventional designs.
  • each movable grate plate can be driven individually be what the requirements for driving a geometric as possible Fire does justice.
  • the constructive solution with the support elements 12 between the longitudinal two Square tubes 10, 11 even allows the replacement of a drive unit during operation of the grate.
  • the grate plates 5.6 either extend individually over the entire width of the grate track or in a variant several grate plates are connected together so that they Cover the entire width of the grate track without slits between them and thereby hardly any rust diarrhea occurs, which is due to the ones under the grate Fitters could fall down.
  • several grate plates become one Grate step can be connected together, for example by screwing them together or welding such individual grate plates together take place, each of which extends over part of the grating track width.
  • two, three or more grate plates arranged side by side can be used can be combined into a single grate level.
  • each support element 12 is by means of the bolts 13.14 hung on the square tubes 10.11 so that by knocking out of the rear bolt 13, the entire support element can be tilted backwards can, after which the articulation of the hydraulic cylinder 18 is accessible and this can be easily expanded.
  • Figure 1 is a longitudinal section Rostbahn shown. The entire rust track often consists of several such sections.
  • the ends of the square tubes 10, 11 and the planks 8, 9 are included Flanges 51,52 equipped so that they are waterproof with the planks and square tubes of the subsequent section can be flanged together.
  • This design allows individual longitudinal sections of a grate track in the Prepare the workshop ready for installation and complete such grate track sections on site assemble quickly. Complicated special transports on the one hand or protracted on-site assembly work is avoided.
  • the Water cooling of the grate plates takes place through connections on the square tube 10, in which cooling water flows from bottom to top. It is based on one open expansion tank, which is, for example, at the level of Dispenser gutter or higher located, through a line by means of a Electric pump pumped down into the square tube 10 and therein at a pressure held by 3-4 bar. Two adjacent grate plates become one in series Cooling circuit switched, since together they always have a constant grate surface form.
  • each Adjacent grate plates is therefore a water connection on the square tube 10 available, and the corresponding cooling water is in each case a separate Return pipe returned to the expansion tank.
  • the square tube 11 does not carry water, but air at an overpressure that an air pump for the following purpose:
  • This Hydraulic cylinders are each housed in a tubular jacket, so that between that and the actual hydraulic cylinder have a free space. This Free space is flushed with air from the square tube 11, so that the Pipe jacket forms a rinsing cylinder.
  • the area below the grate plates is over the grate track length divided into several underwind zones. Each below one stationary grate plate, a partition is built in, which separates the neighboring ones Separates wind zones practically airtight. In the individual underwind zones is blown in primary air by means of a separate fan blower, which then passes through the primary air slots 25 into the combustion chamber.
  • the primary air volume can be varied by varying the speed of the individual Fans are regulated. This variability of the primary air supply in the individual rust zones helps to drive a geometric fire by the fire is supplied locally with air in the amount required can be.
  • a combination of a feed grate with a downstream one Reverse grate proves to be a surprising solution for the shown Dilemma.
  • Such a combination of a feed grate is shown in FIG Design described for Figure 1 with a sliding grate of basically the same Design shown from the side.
  • the firing material passes through a Dump channel 26 on a loading chute 27 by a hydraulic cylinder-piston unit 28 is driven and the firing stock as evenly as possible promoted the rust.
  • the feed chute 27 moves slowly forward, continuously Rubbish falls over the edge 29 onto the grate. From the foremost position of the Feeding chute 27 moves it back quickly and starts again if necessary pushing garbage slowly from behind, so that if desired one almost uniform supply of rubbish on the grate is possible.
  • the movable Grate plates 6 are each with a cylinder-piston unit arranged below the grate plate 18.19 equipped.
  • Primary air openings 25 are present, which are formed by pipe sections, which push through the grate plates 5,6 from below.
  • the primary air openings 25 of the first six grate plates 5, 6 are assigned to the primary air zone 32, those of the next eight grate plates 5,6 are fed from the primary air zone 33, and the last seven grate plates 5,6 are supplied with primary air from the primary air zone 34.
  • These different primary air zones 32-34 are separate from each other and additional can target combustion-promoting gases to each of these zones Pure oxygen, for example.
  • a push-back grate 31 is attached, which has a greater inclination, here 26 °, because the firing material is due to a moving-back grate alone gravity is transported.
  • This sliding grate 31 out in the same way water-cooled stationary 5 and movable arranged therebetween Grate plates 6 are divided into two primary air zones 35 and 36.
  • each movable grate is individually movable, both in relation to the respective stroke length as well as in relation to the stroke speed and the frequency of the batches, the firing material lying on the grate can be local and treated separately in terms of time and transported by name and be stoked.
  • the primary air supply can be regulated zone by zone and the addition of oxygen when required can also be difficult help combustible materials to burn out completely. This rust allows hence a much more universal adjustment of the significant conditions for the Burning out of a certain product to be burned. It can therefore targeted consideration of the calorific values and the composition of the rubbish be taken and optimal burnout can be achieved in any case.
  • the deep, of the primary air zones 34 and 35 come from layers well supplied with primary air in the combustion bed 39 in higher positions, while the upper ones are not yet complete burned-out layers in the burning bed 39 are plowed in so to speak and thus exposed to the heat and primary air supply, so that they too burn out completely.
  • the burned out slag finally falls on End of the push-back grate 31 over the last grate level into a slag collector.
  • Each individual movable grate plate 6 of both the feed 30 and the sliding grate 31 can be moved individually and as required whereby the current firing situation is optimally taken into account can.
  • Feed grate 30 can be played.
  • the following can be used as tax parameters
  • Temperatures of the returns of the water cooling circuits of the individual grate levels 5,6 serve, together with the optical detection of the fire by means of pyrometers.
  • Another parameter, in addition to the local and temporal transport and the stoking forms the primary air supply.
  • the amount of supplied air can be varied as needed.
  • the Primary air can be enriched with pure oxygen, or it can be oxygenated enriched air is also blown into primary air zones 32-36.
  • the mouths 25 of these primary air pipes or corresponding primary air supply channels are included Guide elements in the form of, for example, bow-shaped guide plates, the are simply welded onto the top of the grate plate.
  • the top section the baffle is V-shaped in cross section. The bottom of these baffles impacting primary air jet is therefore divided by the baffles, deflected laterally, its speed slows and the air swirls.
  • the effect is that the air is diffused into the Firing material penetrates.
  • the air that flows through the primary air outlets arranged in a row 25 flows in, so that the burning bed in its entirety Diffuse width to penetrate, so that the atmospheric oxygen much more homogeneous than before is supplied to the combustion. It becomes, so to speak, the entire burning bed penetrating carpet of air and harmful blow-through can be avoided become.
  • Blow-throughs are primary air streams that localize the combustion bed break through and carry a lot of dust and ashes up into the boiler room, what is very undesirable.
  • the bow-shaped baffles cover the mouths 25 in the thrust direction of the grate, so that the firing material is around the guide plates is passed around and does not directly cover the primary air orifices 25.
  • the combustion therefore takes place in accordance with the method described here of the garbage basically first on a moving grate and then to achieve it optimal burnout on a downstream sliding grate.
  • the system can be designed on a case-by-case basis. In extreme cases it is Feed or retractable grate of very short length and may include just one movable grate.
  • Feed or retractable grate of very short length may include just one movable grate.
  • the movable grate levels individually can be moved, both in terms of stroke length as also in terms of stroke speed and stroke frequency. Short stroke lengths then cause local agitation without any significant transport effect to pull on the kiln.
  • the water-cooled combustion grate presented here and with this operated combustion process allows because of the many degrees of freedom a universal adaptation of the combustion to a wide variety of rubbish qualities.
  • Especially the combination of feed and push-back grate proves itself as the key, because only this combination allows the transport and the Varying to vary in a wide band range, so that garbage with high Calorific value is transported quickly and vice versa difficult to combustible waste the burnout zone can be relocated for a particularly long time, much longer than that on a pure infeed or on a backfeed grate, if at the same time new rubbish is added in the initial area of the grate shall be.
  • the air duct with separate zones and covered air outlet openings and the possibility of being able to meter in pure oxygen is one optimal and complete combustion further beneficial.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Incineration Of Waste (AREA)
  • Baking, Grill, Roasting (AREA)
  • Processing Of Solid Wastes (AREA)

Claims (10)

  1. Grille de combustion refroidie par eau, destinée à la combustion de déchets ou d'ordures, composée de plaques de grilles (5, 6) refroidies par eau et disposées les unes sur les autres, qui s'étendent sur une partie de la largeur du tapis de grille ou sur toute cette largeur et forment chaque fois un gradin de grille, cependant qu'au moins un gradin de grille sur deux est mobile et que la grille est traversée par des ouvertures d'alimentation en air primaire (25), par lesquelles de l'air primaire peut alimenter le feu soit individuellement soit zone par zone, caractérisée en ce que la grille de combustion est constituée par une combinaison d'une grille d'avance (30) et d'une grille de recul (31).
  2. Grille de combustion refroidie par eau suivant la revendication 1, caractérisée en ce que dans le sens de la charge ou alimentation en ordures il est disposé d'abord une grille d'avance (30), suivie d'une grille de recul (31) d'une inclinaison plus grande, de manière que celle-ci puisse être alimentée par la grille d'avance (30).
  3. Grille de combustion refroidie par eau suivant une des revendications précédentes, caractérisée en ce qu'au-dessus des bouches des ouvertures d'alimentation en air primaire (25), des éléments de guidage sont disposés sur la grille, contre lesquels l'air primaire sortant doit venir, pour qu'une diffusion fine et l'élimination de flux traversants soient assurées.
  4. Grille de combustion refroidie par eau suivant une des revendications précédentes, caractérisée en ce qu'il est attribué aussi bien à la grille d'avance (30) qu'à la grille de recul (31) plusieurs zones séparées (32-36) ayant leurs propres soufflantes, par lesquelles de l'air primaire peut être envoyé dans le lit de combustion, en traversant la grille par en dessous.
  5. Grille de combustion refroidie par eau suivant une des revendications précédentes, caractérisée en ce que des canaux d'alimentation traversent la grille d'avance (30) ou la grille de recul (31), cependant que, par ces canaux, un fluide devant être brûlé est injectable directement par en bas dans le lit de combustion.
  6. Procédé de combustion d'ordures sur une grille de combustion suivant la revendication 1, caractérisé en ce que :
    a. la matière à brûler arrivante est étalée sur la grille d'avance (30) au moyen d'une commande individuelle de la longueur de course et de la fréquence de course des différentes plaques de grille (6), pour former un lit de combustion (38) régulier, puis qu'elle continue à être transportée en tant que telle, pendant que les substances facilement combustibles sont brûlées complètement, et qu'enfin elle parvient sur la grille de recul (31) disposée à la suite ;
    b. la matière à brûler se trouvant sur la grille de recul (31), disposée à la suite de la grille d'avance (30), est brassée au moyen d'une commande individuelle de la longueur de course et de la fréquence de course des différentes plaques de grille (6), jusqu'à ce qu'une combustion aussi complète que possible soit atteinte pour toutes les substances.
  7. Procédé de combustion d'ordures suivant la revendication 6, caractérisé en ce que :
    aa. dans la première zone de grille, la matière à brûler est étalée sur la grille d'avance (30) correspondante au moyen d'une commande individuelle de la longueur de course et de la fréquence de course des différentes plaques de grille (6), pour former un lit de combustion (38) régulier ;
    ab. dans la deuxième zone de la grille d'avance (30), au moyen d'une commande individuelle de la longueur de course et de la fréquence de course des différentes plaques de grille (6) le lit de combustion régulier (38) est transporté aussi vite ou aussi lentement que l'exige la combustion complète des substances facilement combustibles ;
    b. sur la grille de recul disposée à la suite (31), les matières ou substances qui ne sont pas encore complètement brûlées sont brassées au moyen d'une commande individuelle de la longueur de course et de la fréquence de course des différentes plaques de grille (6), jusqu'à ce qu'elles soient complètement brûlées.
  8. Procédé de combustion d'ordures suivant une des revendications 6 à 7, caractérisé en ce que l'air primaire pour la grille d'avance (30) et la grille de recul (31) est envoyé séparément, zone par zone, par des soufflantes séparées et qu'en cas de besoin, de l'oxygène pur est additionné zone par zone, de manière dosée et ciblée, à l'air primaire.
  9. Procédé de combustion d'ordures suivant les revendications 6 à 8, caractérisé en ce que la commande du brassage, du transport et de l'alimentation en air primaire zone par zone ainsi que, le cas échéant, du dosage d'oxygène zone par zone est commandée en fonction au moins de la température de la recirculation du refroidissement par eau concernant les différentes plaques de grille (5, 6).
  10. Procédé de combustion d'ordures suivant les revendications 6 à 9, caractérisé en ce que, par l'intermédiaire de canaux d'alimentation traversant la grille d'avance (30) ou la grille de recul (31), des fluides devant être brûlés sont injectés à travers la grille, directement par en bas, dans le lit de combustion.
EP99810954A 1998-11-10 1999-10-20 Grille de combustion refroidie par eau et procédé de combustion de déchets correspondant Expired - Lifetime EP1001218B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH224798 1998-11-10
CH224798 1998-11-10

Publications (3)

Publication Number Publication Date
EP1001218A2 EP1001218A2 (fr) 2000-05-17
EP1001218A3 EP1001218A3 (fr) 2000-12-06
EP1001218B1 true EP1001218B1 (fr) 2001-12-12

Family

ID=4229312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810954A Expired - Lifetime EP1001218B1 (fr) 1998-11-10 1999-10-20 Grille de combustion refroidie par eau et procédé de combustion de déchets correspondant

Country Status (4)

Country Link
EP (1) EP1001218B1 (fr)
AT (1) ATE210800T1 (fr)
DE (1) DE59900534D1 (fr)
DK (1) DK1001218T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7424856B2 (en) 2002-08-29 2008-09-16 Von Roll Umwelttechnik Ag Grate element for a grate of a waste combustion installation
WO2011017833A1 (fr) * 2009-08-10 2011-02-17 东南大学 Grille de foyer a vibrations refroidie par eau, a distribution d'air couplee non uniforme, bidirectionnelle, pour chaudiere a combustion directe de biomasse
DE102014008858A1 (de) 2014-06-16 2015-12-17 Joachim Kümmel Verfahren zur Verbrennung von Abfall und Biomassen auf einem Flossenwand-Stufenrost sowie Vorrichtung zur Durchführung des Verfahrens
EP4102133A1 (fr) 2021-06-07 2022-12-14 Ariterm Service Oy Grille refroidie par liquide dans un brûleur de combustible solide

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003025459A1 (fr) * 2001-09-14 2003-03-27 Fls Miljø A/S Chaudiere et procede permettant d'extraire de l'energie d'un combustible
CN101922715B (zh) * 2010-09-01 2011-12-14 重庆科技学院 两段式垃圾焚烧炉
CN110242959A (zh) * 2019-05-09 2019-09-17 重庆三峰卡万塔环境产业有限公司 一种逆推炉排的两段无阶差驱动装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1908992A (en) * 1926-01-29 1933-05-16 Martin Josef Stoking grate
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.
JPH08508818A (ja) * 1994-02-07 1996-09-17 テヒフォルム、エンジニアリング、アクチエンゲゼルシャフト スラスト式焙焼システム上での固体燃焼法
DE4429958A1 (de) * 1994-08-24 1996-02-29 Noell Abfall & Energietech Verfahren und Vorrichtung zur thermischen Behandlung von Rostschlacken
DE19650742C1 (de) * 1996-12-06 1998-02-19 Metallgesellschaft Ag Mit Wasser gekühlter Verbrennungsrost

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7424856B2 (en) 2002-08-29 2008-09-16 Von Roll Umwelttechnik Ag Grate element for a grate of a waste combustion installation
WO2011017833A1 (fr) * 2009-08-10 2011-02-17 东南大学 Grille de foyer a vibrations refroidie par eau, a distribution d'air couplee non uniforme, bidirectionnelle, pour chaudiere a combustion directe de biomasse
DE102014008858A1 (de) 2014-06-16 2015-12-17 Joachim Kümmel Verfahren zur Verbrennung von Abfall und Biomassen auf einem Flossenwand-Stufenrost sowie Vorrichtung zur Durchführung des Verfahrens
EP4102133A1 (fr) 2021-06-07 2022-12-14 Ariterm Service Oy Grille refroidie par liquide dans un brûleur de combustible solide

Also Published As

Publication number Publication date
ATE210800T1 (de) 2001-12-15
EP1001218A2 (fr) 2000-05-17
EP1001218A3 (fr) 2000-12-06
DK1001218T3 (da) 2002-04-08
DE59900534D1 (de) 2002-01-24

Similar Documents

Publication Publication Date Title
EP0621449B2 (fr) Procédé pour la combustion de déchets sur une grille de combustion ainsi qu'une grille de combustion pour la mise en oeuvre du procédé
DE2814290B2 (de) Müllverbrennungsanlage
EP0954722B1 (fr) Grille de combustion a refroidissement par eau
DE2231001A1 (de) Muellverbrennungsofen
EP1001218B1 (fr) Grille de combustion refroidie par eau et procédé de combustion de déchets correspondant
EP0165432A1 (fr) Four, notamment pour la combustion des ordures, du charbon, du bois et des déchets industriels
EP0406396B1 (fr) Dispositif de combustion et/ou de decomposition thermique de materiaux combustibles, notamment des carburants solides
EP0919771B1 (fr) Procédé de combustion pour matières solides sur une grille coulissante refroidie par eau, ainsi que barreau de grille et grille pour la mise en oeuvre du procédé
DE2745756A1 (de) Verbrennungsofen
EP1850071A2 (fr) Four avec une amenée d'air primaire et procédé de fonctionnement d'un tel four
EP0952396B1 (fr) Dispositif pour brûler des matériaux combustibles particulaires
EP0391146B1 (fr) Installation de combustion pour brûler un matériau de combustion, en particulier des ordures
EP1070918B1 (fr) Appareil pour la combustion et la gazéification de biomasse compactée
EP1113223B1 (fr) Appareil de combustion
AT410128B (de) Rost für feste brennstoffe
DE19910530A1 (de) Vorrichtung zum kontinuierlichen Verbrennen von festen Abfallstoffen, Speiseabfällen und Ölschlamm
EP0815394B2 (fr) Systeme d'incineration
DE3826894A1 (de) Drehrohrofen mit sektionaler verbrennungsluftzufuhr
DE9414691U1 (de) Vorrichtung zum Beschicken eines Kehrrichtverbrennungsrostes
DE102012107974B3 (de) Feuerung für holzartige verklumpbare Biomassebrennstoffe
EP0568104B1 (fr) Installation de pyrolyse et de combustion
DE3114722C2 (fr)
DE949518C (de) UEberschubfeuerung, insbesondere fuer Dampfkessel
DE27909C (de) Feuerung mit glockenförmigem Vorrost
DE19502261A1 (de) Verfahren und Verbrennungsrost zum Verbrennen von festen Brennstoffen wie Müll, insbesondere zur Verbesserung des Ausbrandes

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20001220

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010323

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

AKX Designation fees paid

Free format text: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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

Ref country code: IE

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: 20011212

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: 20011212

Ref country code: FI

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: 20011212

REF Corresponds to:

Ref document number: 210800

Country of ref document: AT

Date of ref document: 20011215

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 59900534

Country of ref document: DE

Date of ref document: 20020124

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: FELBER & PARTNER AG PATENTANWAELTE

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

Ref country code: PT

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: 20020312

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20020312

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

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: 20020627

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

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

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021020

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

Ref country code: CY

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: 20021031

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030501

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

Ref country code: GB

Payment date: 20031010

Year of fee payment: 5

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

Ref country code: AT

Payment date: 20031016

Year of fee payment: 5

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

Ref country code: SE

Payment date: 20031017

Year of fee payment: 5

Ref country code: DE

Payment date: 20031017

Year of fee payment: 5

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

Ref country code: BE

Payment date: 20031020

Year of fee payment: 5

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

Ref country code: CH

Payment date: 20031024

Year of fee payment: 5

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

Ref country code: DK

Payment date: 20031027

Year of fee payment: 5

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

Ref country code: FR

Payment date: 20031030

Year of fee payment: 5

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

Ref country code: NL

Payment date: 20031031

Year of fee payment: 5

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041020

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041020

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

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041021

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

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041031

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041031

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041101

BERE Be: lapsed

Owner name: *DOIKOS INVESTMENTS LTD

Effective date: 20041031

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050501

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050503

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20041020

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050630

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20050501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20051020

BERE Be: lapsed

Owner name: *DOIKOS INVESTMENTS LTD

Effective date: 20041031