EP0449911B1 - Grille etagee pour feux a grilles pour dechets ou materiaux difficiles a incinerer - Google Patents

Grille etagee pour feux a grilles pour dechets ou materiaux difficiles a incinerer Download PDF

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Publication number
EP0449911B1
EP0449911B1 EP90900816A EP90900816A EP0449911B1 EP 0449911 B1 EP0449911 B1 EP 0449911B1 EP 90900816 A EP90900816 A EP 90900816A EP 90900816 A EP90900816 A EP 90900816A EP 0449911 B1 EP0449911 B1 EP 0449911B1
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EP
European Patent Office
Prior art keywords
distributor
grate
nozzles
air
grate according
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
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EP90900816A
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German (de)
English (en)
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EP0449911A1 (fr
Inventor
Balduin Pauli
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Individual
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Individual
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Priority to AT90900816T priority Critical patent/ATE90439T1/de
Publication of EP0449911A1 publication Critical patent/EP0449911A1/fr
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Publication of EP0449911B1 publication Critical patent/EP0449911B1/fr
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Classifications

    • 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
    • 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
    • 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
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/80—Furnaces with other means for moving the waste through the combustion zone
    • F23G2203/803—Rams or pushers
    • 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
    • F23H2900/17001—Specific materials therefor

Definitions

  • the invention relates to a step grate for grate furnaces for garbage or other difficult to burn fuels with feed devices, fixed grates, final one burn-out grate and with at least two box-like slider-like distributors which are bevelled at the front, at least one distributor sliding over a subsequent fixed grate provided with vortex nozzles.
  • Allocators of the type mentioned above are known (see, for example, WO 88/06256) and are used in particular in waste incineration, combined waste and sludge incineration and in general in the case of fuels which are difficult to burn out but also in the case of non-solid fuels.
  • Allocators are movable slides that are hollow on the inside. They are able to advance the fuel that has not yet been burned or mostly partially burned, ie mostly to push it to the level below. During this process, the material to be burned also experiences a movement similar to a stoking movement.
  • Allocators are arranged in step grates directly above a fixed grate that they are brushing. However, they can also be arranged directly below the feed flap below a feed device or offset below a sludge feed or the like.
  • the allocators can also be chilled.
  • the object of the invention is to increase the combustion intensity in general in the case of a step grate of the type mentioned at the beginning or in the case of grate furnaces and to replace an ordinary grate step or a stepped pivoting grate step.
  • a combustion chamber construction with grate dating from 1951 (FR-A-1 033 867) is known, where the grate consists of relatively wide stepped grate bars and the air is supplied between successive grate bars. Apart from the gaps between the grate bars, which are never tight, there are large air outlet openings on the front side, only low air speeds are possible. This does not change anything if several grate bars are combined into packages of 5 or 7, for example. The air can escape from the known grate bars in a rather uncontrolled manner.
  • step grate of the type mentioned at the beginning with at least two box-like slider-like feeders which are bevelled at the front, at least one feeder having a subsequent one Vortex nozzles provided fixed grate, characterized in that this distributor is air-cooled and carries in its area facing the combustion chamber rows of compressed air-loaded high-speed nozzles arranged on the front.
  • the material to be burned is either already burned (combustion medium). but at least put in suspension by the pressure of the compressed air and distributed towards the main combustion chamber.
  • the slider does not have a vertical end at the front, but a slightly forward-facing termination, for example at 120 ° to its upper boundary surface. Since such distributors for other uses, for example for melting basalt or the like, have the shape of a circular flask and the person skilled in the art understands a distributor in this direction, or understands it as a machine-guided shovel-like structure, the idea is to provide the distributor with air outlet nozzles , a thought that is completely evident in the field.
  • the nozzles are expediently embedded in highly heat-resistant ceramic material. They can also (see, for example, WO-A-8806256 embedded in slag-repellent ceramic material.
  • the ceramic pad can consist of slag-repellent silicon carbide. The ceramic pad can be stamped on. (The ceramic pad can be stamped on in the molding box.)
  • the top of the dispenser can be made from Sicromal or ceramic material.
  • the nozzle diameter can be 2 to 10 mm.
  • the distributor is expediently provided with a firmly connected air supply pipe to which a heat-resistant metal hose is connected as a connection to the compressed air source.
  • the allocator can be ribbed in the front area.
  • the ribs can be separate bodies and can be connected, in particular welded, to the neighboring rib.
  • the upper and the lower row of nozzles are expediently equipped with a single nozzle per rib, the middle row with two nozzles per rib.
  • Air can be supplied from an air distributor pipe located in the interior of the distributor via a feed pipe on the back to a box-like admission collector following the distributor outside.
  • Each allocation rib formation can be assigned its own exposure collector, which feeds the nozzles.
  • the distributor is subdivided because steel, the carrier and base material of the distributor, has a different coefficient of thermal expansion than the ceramic material, and because the different heating of the distributor would otherwise unpredictably twist and jam during operation.
  • the tube fixed to the distributor can also be a telescopic tube.
  • the allocator can be guided and stored in such a way that it moves contact-free over the fixed grate level assigned to it or coated by it.
  • It can preferably be driven via guide rollers fixed to it at the top and bottom of a fixed mounting rail in its rear area, via a camber roller in its front area on the combustion chamber side and driven by means of a drive pinion which engages on its underside and which engages in pin rods or a toothed rack.
  • a scraper can be interposed between the grate stage and the distributor located underneath, which wipes the upper side of the distributor as it moves into and out of its advanced position.
  • blow-out nozzles can additionally be provided in the nose area.
  • the distributor nozzles according to the invention which discharge at such high speeds, have the effect that the fire bed is torn open and swirled.
  • the dynamic energy is used to achieve a stoking movement or stoking effect: the fire bed is torn open as mentioned above and whirled up at all points in a relatively short time.
  • Another function of the arbiter is to advance heavy parts. This combination with the vortex nozzles of the fixed grate level (vortex component level) enables circulation / shifting. The switching is also done automatically. Tearing open the material also results in a certain size reduction (large pieces or bridges disintegrate into smaller pieces).
  • the new grate step which no longer has to be a stepped swivel grate, is now much smaller than, for example, a stepped swivel grate arrangement.
  • the resistance to wear due to the mass being massaged is very considerable.
  • the lead in the Tecknik becomes obvious, since with metallic grates chrome and nickel get into the flue gas path through abrasion.
  • a large area is covered with SiC concrete. No wear and tear occurs on metallic parts, just as little as scaling. The heat conduction is also lower compared to that of steel.
  • insulating material for example a light fire material
  • 50 to 60 m of insulating material can also be applied to the grate bar or the distributor itself, and only then is the dusting applied.
  • the pinion drive can be carried out in addition to toothed racks in such a way that Ouer bolts, the so-called pin rods, sit on a long rod fixed to the distributor, into which the teeth of the pinion engage.
  • the angle between the nozzle axes (from the nose section) of the distributor and the nozzles of the fixed grate (flat grate) is approximately 90 ° (plus 20 °).
  • the light fuel fraction is thus burned in the balance, the heavy fuel fraction from stage to stage on the grate.
  • a stepped grate consisting exclusively of feeding equipment, two fixed grids, each of which one feeder slides over, and a final burn-out grate, whereby the air from the second fixed flat grate and feeder results in the stoking and tearing effect. Above all, it is unusual to supply air via the distributor.
  • the distributor also has the function of a transport device on the grate with swirl nozzles and takes over the function of the movable grates or movable grate bars.
  • Fig. 1 shows a grate arrangement as it is in a combustion chamber.
  • a task 1 is shown, the furnace frame 2 (indicated), an upper distributor, a fixed grate 50, the distributor 10 designed according to the invention, a further fixed grate 52 below the distributor and a ram-burned out grate 5.
  • the allocator 10 is located below the fixed grate 50 and above the fixed grate 52; in the rear area it is guided over rollers, for example on U-bars, in the front area it is pushed over a support roller.
  • a running rail 11 is firmly attached.
  • Guide rollers 13 are fixedly mounted on the distributor via pendulum axles.
  • the allocator 10 thus travels along the fixed travel rail 11 and slides in the front region over a nozzle grate 52. The movement takes place via a drive pinion 15 which is in engagement with a toothed rack or pin rod (not shown in FIG. 1).
  • the allocator 10 is open at the bottom. For better weight absorption, the allocator rests on a support roller 19 at the front.
  • Air from the network 44 passes through a supply line 18 and via a hose feed 16, position 20 (joint head) making the retracted position 20 'the feed position of the distributor recognizable.
  • the air then flows in the distributor via an air supply 12 into a transverse air distribution pipe 22.
  • the operating pressure of the compressed air at this point is approximately 6,000 to 80,000 Pa, depending on the operating conditions.
  • the rows of nozzles 24 are acted upon by the air distributor pipe 22.
  • the allocator 3 is the same in terms of guidance (running rail, rollers), but without any air supply.
  • a scraper 21 which hangs freely with its axis 23 on the furnace housing (not shown) and which cleans the distributor 10 when it moves back and forth.
  • the arbiter consists of a sheet metal stamped on the front.
  • the scraper 21 has a special effect when it cleans the dispenser when it is withdrawn. From the fixed grate step, more than 25 supplied air exits at 27 or via nozzles 29.
  • the fixed grate 52 designed as a vortex stage has nozzles to be described below, which blow out upwards, and a row of nozzles 29 which blow out towards the front.
  • the axis of the nozzle rows 29 is directed and blows at an acute angle below 45 °, for example 30 ° over the front nose 31 of the fixed grate.
  • the nozzles of the fixed grate stage (vortex stage, also called vortex component) are dusted.
  • the feeder hovers with its feeder nose above the fixed grate step due to the guidance described.
  • the distributor 10 which is designed as an air distributor, is ribbed and has individual ribs 46 which are arranged closely next to one another and are tightly connected.
  • the back and forth distributor 10 is formed in one piece with its air distribution piece.
  • the top 38 of the dispenser consists of Sicromal or ceramic material.
  • the side of the distributor ribs facing the combustion chamber consists of highly heat-resistant ceramic material 32.
  • the distributor pushes out into the vortex component stage 40, into which air is also blown via the upwardly directed nozzles. Allocator and vortex component stage can be acted upon by a common air supply at almost the same pressure conditions.
  • the nozzles or rows of nozzles 57 of the fixed nozzle grate 52 are supplied via air supply pipes which discharge in air distribution boxes 59.
  • the additional row of nozzles 55 on the front side of the vortex component step 52 (solid grating), which is chamfered at the front, can have its own air supply or can optionally also be supplied by the air distribution box 59 '.
  • the distributor is cleaned again via the loosely mounted scraper 21 in the manner described with reference to FIG. 1.
  • the air distributor head of the distributor In the area of the air distributor head of the distributor, it is dusted with ceramic mass 32 in an absolutely tight manner, just as the flat gratings are so dusted that they are absolutely tight (partly liquid) for receiving the problem goods. Since the distributor slides over the nozzles 57 of the vortex component stage 40 without contact at a distance of, for example, 5 mm, neither the nozzles nor the ceramic mass are damaged.
  • FIGS. 3 and 4 The construction described above can be seen more precisely in FIGS. 3 and 4. On average you can see the three rows of nozzles with the nozzles 28 and the front nozzle inserts 26, which only release the defined outlet.
  • the nozzle inserts are made of a particularly durable material.
  • the air is guided via the fixed pipe 12 into the air distributor pipe 22 which is arranged in the distributor in the direction of the width of the distributor. The air then passes through short connection stubs 48 in each of the ribs assigned to the admission collectors 30 and 30 '.
  • FIG. 4 shows a section along the plane A-A in FIG. 3 through two such ribs 46. In FIG. 4 the individual nozzles 28 can be seen.
  • the exposure collectors follow the shape of the ribs deflected from the horizontal to the bevel (forward) and have the shape of a pipe knee.
  • Fig. 4 is a section through middle rows of nozzles, since two nozzles 28 per rib can be seen.
  • the ceramic material around the ribs can be stamped on, between the ribs there is a highly refractory expansion compensation material 62. Since the steel material of the collector 30, 30 'expands to different extents from the ceramic mass 32, 32, the compensation material 62 performs well.
  • a uniform pressure for the nozzles is ensured by the admission collectors 30, 30 '.
  • 60 to 140 m / s are aimed for as the exit speed of the air from the nozzles 28.
  • the desired value can be achieved by appropriate variations in air volume, pressure, nozzle cross-section and number of nozzles.
  • the axes of the nozzles 28 can be arranged instead of parallel (as in the exemplary embodiment shown) at an angle to one another which can be determined according to the needs.
  • the upper and lower rows of nozzles can be directed at an angle to the plane of the middle rows of nozzles containing the axis.
  • Arranging the rows of nozzles at an angle of 60 ° results in the advantage that all the nozzles are always the same distance from each neighboring nozzle, and the dead spaces that are not reached by the air cones and in which no swirling occurs become as small as possible .
  • the nozzles can be set up for blowing out enriched air, for example oxygen-enriched air, vapors or steam, and possibly also for exhaust gas recirculation.
  • enriched air for example oxygen-enriched air, vapors or steam, and possibly also for exhaust gas recirculation.
  • Fig. 5 shows a modified nozzle.
  • the nozzle tube 50 is welded into the collector 30 '.
  • a nozzle head 52 made of 1.4828 Sicromal steel (about 2% C, 20% Cr, 12% Ni, 4% Si as well as Ti, Mb and the rest iron) is attached at 54 by means of two relatively short tack seams 54.
  • the stitching seams are only 1 cm long, for example, so that the connection does not break when the thermal expansion between the nozzle head 52 and the nozzle tube 50 is different.
  • the nozzle head sits on the nozzle tube with a fit (H 7 / s 6).
  • the nozzle head 52 is approximately 5 mm deep on the outside and, for example, flattened at 45 °.
  • the nozzle head is largely protected against heat radiation by stamping in the SiC mass (46 'in FIG. 4).
  • the nozzle head tapers inside at 58 into the straight nozzle outlet 60 with a diameter of, for example, 20 mm and at 56 to about 6 mm at Nozzle outlet 60.
  • the nozzle head has a length of, for example, 40 mm and is pushed up to 20 mm onto the nozzle tube.
  • the distributor 10 shows the distributor 10, which is open at the bottom, in cross section.
  • the distributor 10 consists of lateral longitudinal distributor frames 64 and several stiffening profiles 65 and shows two carrier profiles 66, on which, for example, bolt rods 67 are seated, which are in engagement with the pinions 15 mentioned.
  • a flat rod can also be provided.
  • An electric motor 68 drives the pinion 15 via a reduction gear 69.
  • Support is provided, for example, by means of gallows 70, storage by bearings 71 and lowerable supports 72.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Furnace Details (AREA)

Abstract

Un distributeur pour feux à grilles comprend une coulisse en forme de caisse à paroi avant inclinée dont la section postérieure notamment est montée sur des rouleaux et dont la section antérieure se déplace sur un rouleau de support. La coulisse a environ la largeur de la chambre du four, dont la longueur dépasse sa largeur, et se caractérise par le fait que le distributeur (10), qui est le cas échéant refroidi à l'air, est pourvu de son côté qui fait face à la chambre du four de rangées d'orifices (24) de sortie d'air.

Claims (17)

  1. Grille en gradins pour feux à grille destinés à des ordures ou à des matières combustibles brûlant difficilement, comportant un dispositif d'alimentation, des grilles fixes avec une dernière grille servant de grille de post-combustion, et au moins deux doseurs de type registre, en forme de caisson, inclinés vers l'avant, au moins un doseur (10) poussant le combustible sur une grille fixe située en aval et pourvue de buses à turbulence, caractérisée en ce que ce doseur (10) est refroidi à l'air et porte, dans sa zone dirigée vers la chambre de combustion, des rangées (28) de buses à grande vitesse disposées côté frontal et recevant de l'air comprimé.
  2. Grille en gradins selon la revendication 1, caractérisée en ce que les doseurs sont supportés par des roulements à rouleaux dans leur zone arrière, opposée à la chambre de combustion, et sont logés sur un rouleau d'appui dans leur zone avant, dirigée vers la chambre de combustion.
  3. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que les buses sont noyées dans un matériau céramique très réfractaire.
  4. Grille en gradins selon la revendication 3, caractérisée en ce que le diamètre des buses (28) est de 2 à 10 mm.
  5. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que la vitesse de sortie est d'environ 60-140 m/s et notamment de 100-120 m/s, ce qui permet d'obtenir une turbulence intense.
  6. Grille en gradins selon l'une des revendications 3 à 5, caractérisée en ce que le matériau céramique (32) a un effet repoussant les scories et est en particulier constitué de carbure de silicium.
  7. Grille en gradins selon la revendication 5, caractérisée en ce que le revêtement céramique (32) est appliqué par pilonnage.
  8. Grille en gradins selon l'une des revendications précédentes, caractérisée par un tube d'amenée d'air (12),fixé à demeure au doseur correspondant, tube auquel est raccordé un tuyau métallique souple (18), résistant à la chaleur et assurant la liaison avec la source d'air comprimé (44).
  9. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que les buses sont installées pour éjecter en alternance de l'air enrichi, des brouillards ou de la vapeur.
  10. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que le ou les doseurs (10) sont formés, dans la zone frontale avant (42), par des nervures (46) très voisines les unes des autres.
  11. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que le ou les doseurs portent, dans leur zone avant occupée par les buses, en haut et en bas, des rangées de buses comportant une buse unique par nervure (46) et, au milieu d'une rangée, deux buses (28) par nervure, pour provoquer une répartition extrêmement flexible de l'air éjecté par les buses, de façon à réaliser une répartition très flexible des buses.
  12. Grille en gradins selon l'une des revendications 9 ou 10, caractérisée en ce que l'air provenant d'un tube répartiteur d'air (22), se trouvant dans l'espace intérieur du doseur, est envoyé, côté arrière, par une tubulure de raccordement (48), à un collecteur d'admission (30, 30'), en forme de caisson, qui suit le côté extérieur du doseur.
  13. Grille en gradins selon la revendication 11, caractérisée en ce qu'à chaque configuration de nervure de doseur (46) est affecté un collecteur d'admission (34) qui lui est propre et alimente les buses (28).
  14. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que le doseur (10) est guidé sans contact sur le gradin fixe (52), muni de buses et qui lui est affecté.
  15. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que le ou les doseurs courent, dans leur zone arrière, sur des rouleaux de guidage (13), en prise en haut et en bas avec un rail de roulement fixe (11) et fixés aux doseurs et, dans leur zone avant située du côté de la chambre de combustion, sur un rouleau d'appui (19), et sont entraînés à l'aide d'un pignon d'entraînement (15), en prise avec son côté inférieur, lequel est en prise avec une crémaillère ou une tige (67 ; 67 ...).
  16. Grille en gradins selon l'une des revendications précédentes, caractérisée par un racleur (21), logé d'une manière amovible dans la zone de la sortie d'air d'un gradin (50) se trouvant par dessus, racleur qui balaye le côté supérieur du doseur lors de son déplacement vers la position (10') et à partir de cette dernière.
  17. Grille en gradins selon l'une des revendications précédentes, caractérisée en ce que, dans la zone inclinée avant (la "zone du nez"), le gradin (40 ; 52), servant de composant de turbulence et pilonné, constitué de barreaux fixes, porte des buses d'extinction (55).
EP90900816A 1988-12-20 1989-12-18 Grille etagee pour feux a grilles pour dechets ou materiaux difficiles a incinerer Expired - Lifetime EP0449911B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90900816T ATE90439T1 (de) 1988-12-20 1989-12-18 Stufenrost fuer rostfeuerungen fuer muell oder andere schwierig ausbrennende brennstoffe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8815791U DE8815791U1 (de) 1988-12-20 1988-12-20 Zuteiler
DE8815791U 1988-12-20

Publications (2)

Publication Number Publication Date
EP0449911A1 EP0449911A1 (fr) 1991-10-09
EP0449911B1 true EP0449911B1 (fr) 1993-06-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900816A Expired - Lifetime EP0449911B1 (fr) 1988-12-20 1989-12-18 Grille etagee pour feux a grilles pour dechets ou materiaux difficiles a incinerer

Country Status (3)

Country Link
EP (1) EP0449911B1 (fr)
DE (2) DE8815791U1 (fr)
WO (1) WO1990007086A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107795996A (zh) * 2016-09-05 2018-03-13 深圳市能源环保有限公司 一种具有通风孔的垃圾焚烧炉炉排片

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714573C1 (de) * 1997-04-09 1998-04-16 Ecm Ingenieur Unternehmen Fuer Feuerungsrost und Elemente zu seiner Herstellung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1033867A (fr) * 1951-03-12 1953-07-16 Foyer perfectionné plus spécialement destiné à la combustion de fines de charbon
ATE70121T1 (de) * 1987-02-18 1991-12-15 Balduin Pauli Stufenschwenkrostanordnung mit luftduesen.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107795996A (zh) * 2016-09-05 2018-03-13 深圳市能源环保有限公司 一种具有通风孔的垃圾焚烧炉炉排片

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DE58904668D1 (de) 1993-07-15
EP0449911A1 (fr) 1991-10-09
DE8815791U1 (de) 1989-03-23
WO1990007086A1 (fr) 1990-06-28

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