WO2011124762A1 - Structure de chaudière pour brûler du combustible solide - Google Patents

Structure de chaudière pour brûler du combustible solide Download PDF

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Publication number
WO2011124762A1
WO2011124762A1 PCT/FI2011/050297 FI2011050297W WO2011124762A1 WO 2011124762 A1 WO2011124762 A1 WO 2011124762A1 FI 2011050297 W FI2011050297 W FI 2011050297W WO 2011124762 A1 WO2011124762 A1 WO 2011124762A1
Authority
WO
WIPO (PCT)
Prior art keywords
grate
combustion
fuel
combustion chamber
tube
Prior art date
Application number
PCT/FI2011/050297
Other languages
English (en)
Inventor
Taisto MÄKIVIRTA
Original Assignee
Maekivirta Taisto
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 Maekivirta Taisto filed Critical Maekivirta Taisto
Publication of WO2011124762A1 publication Critical patent/WO2011124762A1/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
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/16—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support
    • 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
    • F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • 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
    • F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • 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
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H13/00—Grates not covered by any of groups F23H1/00-F23H11/00
    • F23H13/06—Dumping grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
    • F23K3/16—Over-feed arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/30—Pyrolysing
    • F23G2201/303—Burning pyrogases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/30—Pyrolysing
    • F23G2201/304—Burning pyrosolids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00—Furnace arrangements
    • F23G2203/50—Fluidised bed furnace
    • F23G2203/502—Fluidised bed furnace with recirculation of bed material inside combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00—Waste feed arrangements
    • F23G2205/12—Waste feed arrangements using conveyors
    • F23G2205/121—Screw conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying

Definitions

  • the invention relates to the boiler structure as defined in the preamble of claim 1 for burning solid fuel in a combustion chamber of a boiler provided with a grate.
  • the boiler structures used in combustion processes are normally either boilers provided with different types of chain grates or fluidized-bed boilers. Both structures are well-functioning and efficient per se, but only with specific fuels. Clean and complete combustion would require high temperatures, which easily leads to melting of the ash. In addition, operation at high temperatures often approaches the thermal resistance limits of the structures.
  • the objective of the invention is to eliminate the drawbacks of the prior art referred to above.
  • the boiler structure according to the invention includes a combustion chamber having a grate on the bottom thereof. Furthermore, it includes fuel supply means and combustion air supply means as well as an outlet duct in order to lead the hot exhaust gases to the heat exchangers and other destinations according to the application and need. In addition, heat ex- changers, such as superheaters, may be disposed even at the top part of the combustion chamber.
  • the grate includes a nozzle structure provided with a primary combustion air feed-through, i.e. a set of holes directing a strong air flow upwards from the top of the planar grate.
  • a primary combustion air feed-through i.e. a set of holes directing a strong air flow upwards from the top of the planar grate.
  • the fuel is fluidized above the grate in an intensive combustion process.
  • the grate includes two substantially horizontal hinged sections which may be turned to a substantially vertical position independently of each other and which provide for the dropping of the ash from the top of the grate into an ash box below the grate.
  • the combustion process can be made continuous, because the combustion may go on at one part of the grate while the other part_ of .
  • the fuel supply means include a substantially straight and vertical tube extending within the combustion chamber from the top part of the combustion chamber to the space above the grate, to a distance therefrom. This way, the tube is surrounded by hot combustion gases during the combustion process. As the tube jacket is additionally provided with holes substantially along its entire length, the fuel flowing down the tube is dried. In consequence, the steam released from the fuel at the top end of the tube is able to access the top end of the combustion chamber through the holes.
  • the burning gases gasifying from the drier fuel are discharged to the combustion chamber through the holes of the tube and are burnt therein.
  • the dry fuel which is already partially gasified or even charred falls from the bottom end of the tube onto the grate or, more specifically, onto a primary combustion air cushion on top of the grate, where it gasifies and burns cleanly and completely.
  • the top end of the tube supplying fuel onto the grate includes a supply device, such as a screw conveyor, by which the fuel can be supplied in a controlled manner into the vertical tube with a desired mass flow.
  • a feed screw is preferably used in the vertical tube. This way, blockage of the tube is prevented and steady fuel supply is ensured with different fuels of varying properties and their mixtures.
  • the grate In order to carry out fluidization of the fuel only by means of air, the grate has openings for the primary combustion air flow, distributed substantially evenly over its entire area.
  • the planar hinged sections of the grate consist of a two-layer structure, i.e. an upper jacket and a lower jacket.
  • the primary combustion air is then led into the space formed therebetween, suitably for example via a pivoting shaft of the hinged section.
  • the density of the holes and their size on the grate may vary in different applications.
  • Their purpose is to provide a strong upwardly oriented primary combustion air flow forcing the fuel upwards and off from the surface of the grate. This way, the combustion takes place as fluid- ized combustion or at least as a swirling moving mass on top of the grate in the hot preheated primary corn- bustion air flow surrounded by the hot wall structures of the combustion chamber.
  • the combustion chamber also has secondary combustion air nozzles disposed above the grate and the fluidizing layer of fuel, preferably approximately at the level of the bottom end of the tubes supplying the fuel to the combustion chamber.
  • the final combustion of the compounds that have not yet burnt can be ensured by tertiary combustion air nozzles disposed at the top .
  • the vertical tubes carrying out the fuel supply can be defined as having such a length that the fuel therein is always dried first and then gasified in such a way that the fuel discharging from the bottom end of the tube onto the air cushion is practically pure carbon.
  • a three-step combustion process is developed vertically in the combustion chamber, wherein drying of the fuel, gasifying and combustion of the carbon take place as substantially overlapping and sequential processes .
  • the combustion chamber is a vertical and cylindrical structure, i.e. it has a circular horizon- tal cross-section.
  • the combustion chamber jacket has at least a two-layer steel sheet structure, wherein the primary, secondary or tertiary combustion air circulates between the jackets, cooling the jacket while the air is thus heating up before flowing into the combustion process.
  • the jacket may have other air circulations by which it is cooled down and the heated air is utilized in another way in the combustion process or externally.
  • the wall structures of the combustion chamber are intensively cooled by preheating the combustion air and drying the fuel, providing for high combustion temperatures and clean and complete combustion without the temperature of the combustion chamber structure being able to rise to a harmful level.
  • T & gxa£.e p.e —s-e—nd—the—&o ⁇ --e- on4 ftg—h-i-R-ging—mea-R-s- may constitute an assembly wherein the planar grate consisting of two sections and constituting the entire bottom of the combustion chamber can be turned in two separate sections independently of each other, the sections of the grate having for example the shape of a half of a circle.
  • the essential feature is that the grate sections operate independently of each other in such a way that the combustion may go on at one half of the grate while the other half of the grate is turned in the vertical direction in order to clean it from the ash.
  • the combustion takes place mainly by fluidiza- tion or at least as a strong swirling mass movement immediately above the grate, whereupon also the producing ash is mostly moving on top of the grate. Therefore, when the grate is turned down and the air flow carrying out the fluidization turns horizontal, the ash produced on top of the grate falls down into the ash box. The same also happens to ash possibly ad- hered to the grate, i.e. continuing the strong air flow through the grate also when it is turned into the substantially vertical position is sufficient to blow the grate clean.
  • a vibrator can also be used in connection with the grate if necessary so as to be able to shake off any adhered matter from the grate.
  • scrapers scrubbing the surface of the grate or moving in other ways along its surface or other ar- rangements pushing or pulling the adhered impurities off from the grate surface can be used.
  • the boiler structure according to the invention provides considerable a Lantaxj S—a.s—compar-e-d- ⁇ Q—t3 ⁇ 4-e—pr-i-e-r- art.
  • a single boiler structure can be used to burn any bio-based fuels and wastes. The combustion is efficient and complete, and the combustion process is controlled and stable, irrespective of the different moisture contents of different fuels, their ash con- tents and the melting temperatures of the ash. Thanks to the boiler structure, very high combustion temperatures can be used, ensuring clean combustion products. Furthermore, by the properly controlled heat flows in the structure, the structures are able to withstand even intensive heat.
  • FIG. 1 is a schematic cross-sectional view from the side of one boiler structure according to the invention.
  • Fig. 2 is a schematic view of the grate of the structure illustrated in Fig. 1 as seen from the top .
  • One boiler structure according to the invention pre- sented in Fig. 1 includes a combustion chamber 1 having the cross-section of a circular cylinder structure.
  • the vertical walls of the cylinder are formed by a three-layer steel sheet structure forming air ducts.
  • the irsr 2 at the bottom of thie combustion chamber ⁇ is a circular structure consisting of two semi-circular hinged sections 6 having a bottom plate 14 and a top plate 15, whereby an air space is formed therebetween. Between the hinged sections there is a hollow pivoting shaft 11 by which the grate is supported to the sides of the combustion chamber.
  • the pivoting shaft 11 may have for example two shafts within each other, one being coupled to the first hinged section 6 and the other one to the second hinged section 6 in such a way that the halves of the grate, i.e. the hinged sections, can be turned between a horizontal service position and a downward substantially vertically turned cleaning position independently of each other.
  • the middle part 16 of the grate not turning with either of the hinged sections but instead remaining in place.
  • the two hinged sections together constitute the entire top surface of the grate.
  • the top plates 15 of the hinged sections 6 and the middle part are provided with a nozzle structure 5, i.e. they are provided with a large number of holes distributed substantially evenly over their entire surface area. This way, the primary combustion air blown from the hollow pivoting shaft 11 between the bottom plates 14 and the top plates 15 of the grate is discharged up into the combustion chamber 1 through the holes.
  • the fuel supply means 3 of the boiler structure include fuel silos 17 from which the wood chips, peat, straw, pellets, sawdust or other solid fuel is supplied into the combustion chamber .1....Under, the fuel _s_i-Lo ]_7 thexe—is——fi-r-s-—suppl-y— ev-iee—9—p-ifov-drded—w-rth a rotatable coil by which the fuel is moved on top of the combustion chamber into the actual vertical fuel supply tube 7.
  • the supply tube 7 is a long tube extending from the top of the combustion chamber to the interior thereof, to a distance from the grate above it.
  • a second supply device 10 provided with a coil, the rotation of which may be controlled to control the amount of fuel falling onto the grate.
  • the entire jacket of the tube 7 over the portion within the combustion chamber 1 is perforated, i.e. the tube jacket has a large number of holes 8 disposed along its entire length.
  • the second supply device 10 dries first, i.e. moisture evaporates from it. The moisture is able to discharge into the top part of the combustion chamber through the holes of the tube. After dry- ing, the fuel begins to gasify and, in the same way, the gases are able to access the combustion chamber through the holes 8 of the tube 7 where they burn.
  • a primary air blower 18 blows pri ⁇ mary combustion air around the ash box 19 and from there on around the bottom part of the combustion chamber 1, first upwards on the outside and then back down closer to the combustion process, after which the heated _combustion air is led into . the grate . via the fa arln-g-s of the— ⁇ i-v-oting—sii-aft—1-1— ⁇ —tfee—g-r-a4Ere—2—a-fi-d- there on out and upwards through the holes on the top plate 15 of the grate.
  • the primary air flow heating up cools the bottom part of the combustion chamber as well as the grate structures, providing for a hot and efficient combustion process in the strong air flow carrying the fuel on top of the grate.
  • the combustion chamber is surrounded by a second two-jacket air circulation 21 where a secondary air blower 22 blows com- bustion air to the outer jacket 23 surrounding the combustion chamber, wherefrom the air is led to the inner air jacket 24.
  • a secondary air blower 22 blows com- bustion air to the outer jacket 23 surrounding the combustion chamber, wherefrom the air is led to the inner air jacket 24.
  • the hot combustion air can be drawn in a controlled manner by a control device 25 to secondary combustion air nozzles 12 by which the secondary combustion air is led into the combustion chamber 1, approximately to the level of the bottom end of the tubes 7.
  • hot combustion air is drawn from the in- ner air jacket 24 by a second control device 26 into tertiary combustion air nozzles 13 disposed in the top part of the combustion chamber, i.e. approximately in the hottest part of the combustion chamber.
  • the excess hot air flows are guided to another application through an outlet 27.
  • water can be injected into the combustion chamber by nozzles 28 and a supply arrangement 29 connected thereto.
  • the structure according to Fig. 1 and 2 operates in the following way.
  • the fuel dries and gasifies, and the steam and burning gases are able to discharge out into the combustion space through the holes 8 in the tubes 7.
  • the partially or even completely charred fuel falls towards the grate 2 from the bottom end of the tubes.
  • the fuel burns as fluidized combustion on the intensive air cushion oriented upwards from the grate.
  • the combustion is further intensified by the secondary combustion air to be led to the level of the bottom end of the tubes and assisted with the tertiary combustion air to be led to the top end of the combustion chamber.
  • additional water may also be led to the combustion process through the nozzles 28 in order to maintain the temperature of the combustion gases below the allowed maximum limits of the structures.
  • An essential feature in the structure and operation according to the invention is also the removal of the ash carried out during the continuous combustion by tipping over the sections of the two-piece grate at different times according to need.
  • the tipping over and the efficient cleaning of the grate is important for the reason alone that extremely hot and complete combustion bears a great risk that the ash would melt and block the grate.
  • This way by the strong air flow through the grate, also effected when the grate is disposed in the vertical position, the grate is kept clean and operational irrespective of the employed fuels and temperatures. Furthermore, during cleaning of one of the grate halves, the fuel supply and combustion goes on uninterrupted and at full power at the other grate section.
  • the essential feature in the structure according to the invention is the extremely hot combustion as well as proper control of the heat-resistant materials having good heat-storing and conducting properties, and of the heat flows.
  • the combustion may take place in extremely hot conditions because the wall structure limiting the combustion space is highly heat- resistant, thanks to the strong and efficiently cooling air flows. Furthermore, the combustion air to be led to the combustion space is very hot, ensuring quick and complete combustion. Due to the two-step operation of the grate, the process will not cool down when the grate is being turned, but instead the combustion is continuous and the burning hot combustion air flows into the combustion chamber steadily and continuously. This way, after turning the grate section back to the horizontal position, the steady and complete combustion is immediately continued.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Solid-Fuel Combustion (AREA)

Abstract

L'invention concerne une structure de chaudière pour brûler du combustible solide; la structure de chaudière comporte une chambre de combustion (1) ayant sur le fond une grille (2); un moyen d'alimentation en combustible (3); un moyen d'alimentation en air de combustion; et un tuyau d'évacuation (4) de gaz d'échappement chauds. Selon l'invention, la grille (2) comporte une structure de buses (5) pourvue d'alimentation en air à combustion primaire afin de fluidiser le combustible dans l'écoulement d'air au-dessus de la grille, et deux sections articulées (6) que l'on peut tourner dans une position sensiblement verticale indépendamment l'une de l'autre afin de vider les cendres de la partie supérieure de la grille dans le bac à cendres inférieur. De plus, selon l'invention, le moyen d'alimentation en combustible (3) comporte un tube sensiblement droit et vertical (7) s'étendant de la partie supérieure de la chambre de combustion (1) à l'espace au-dessus de la grille et enveloppé par les gaz de combustion chauds durant le processus de combustion. En outre, l'enveloppe du tube (7) est pourvue de trous (8) placés sensiblement le long de sa hauteur afin de diriger la vapeur libérée à mesure que sèche le combustible s'écoulant dans le tube, et les gaz brûlant dans la chambre de combustion avant que le combustible tombe sur la grille et dans la couche d'air primaire.
PCT/FI2011/050297 2010-04-09 2011-04-06 Structure de chaudière pour brûler du combustible solide WO2011124762A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20105365A FI123120B (fi) 2010-04-09 2010-04-09 Kattilarakenne kiinteän polttoaineen polttamiseksi
FI20105365 2010-04-09

Publications (1)

Publication Number Publication Date
WO2011124762A1 true WO2011124762A1 (fr) 2011-10-13

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Application Number Title Priority Date Filing Date
PCT/FI2011/050297 WO2011124762A1 (fr) 2010-04-09 2011-04-06 Structure de chaudière pour brûler du combustible solide

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FI (1) FI123120B (fr)
WO (1) WO2011124762A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102767833A (zh) * 2012-08-13 2012-11-07 无锡多灵环保工程设备有限公司 垃圾焚烧炉均衡进料装置
ITBG20120031A1 (it) * 2012-06-20 2013-12-21 Greentek Di Salomoni Marco & C S N C Impianto per la produzione di energia termica mediante biomasse
CN103822214A (zh) * 2014-03-13 2014-05-28 四川耀农机电科技有限公司 环保型生活垃圾焚烧炉
CN104913308A (zh) * 2015-06-07 2015-09-16 广西玉林市龙泉水产养殖有限公司 一种顶口进料反烧垃圾炉
US20150300636A1 (en) * 2014-01-08 2015-10-22 Eugene Sullivan Combustion boiler with pre-drying fuel chute
RU182455U1 (ru) * 2017-08-09 2018-08-17 Общество с ограниченной ответственностью "ТРИАЙ" Водогрейный твердотопливный котел длительного горения
RU183159U1 (ru) * 2017-08-09 2018-09-12 Общество с ограниченной ответственностью "ТРИАЙ" Водогрейный твердотопливный котел длительного горения
CZ308666B6 (cs) * 2018-10-22 2021-02-03 Kovosta - fluid a.s. Sestava fluidního kotle a způsob spalování alespoň dvou druhů paliv ve fluidním kotli

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103591573B (zh) * 2013-10-28 2017-02-08 泉州恒灼热力机械科技有限公司 一种生物质燃烧炉
CN112555814A (zh) * 2020-12-31 2021-03-26 河南农业大学 具有履带式燃烧炉膛的烤烟用生物质燃烧器及其操作方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628831A (en) * 1982-01-20 1986-12-16 Charbonnages De France Hearth and process for fluidized-bed treatment of a fuel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4628831A (en) * 1982-01-20 1986-12-16 Charbonnages De France Hearth and process for fluidized-bed treatment of a fuel

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBG20120031A1 (it) * 2012-06-20 2013-12-21 Greentek Di Salomoni Marco & C S N C Impianto per la produzione di energia termica mediante biomasse
CN102767833A (zh) * 2012-08-13 2012-11-07 无锡多灵环保工程设备有限公司 垃圾焚烧炉均衡进料装置
US20150300636A1 (en) * 2014-01-08 2015-10-22 Eugene Sullivan Combustion boiler with pre-drying fuel chute
US9964303B2 (en) * 2014-01-08 2018-05-08 Eugene Sullivan Combustion boiler with pre-drying fuel chute
CN103822214A (zh) * 2014-03-13 2014-05-28 四川耀农机电科技有限公司 环保型生活垃圾焚烧炉
CN103822214B (zh) * 2014-03-13 2015-12-23 四川耀农机电科技有限公司 环保型生活垃圾焚烧炉
CN104913308A (zh) * 2015-06-07 2015-09-16 广西玉林市龙泉水产养殖有限公司 一种顶口进料反烧垃圾炉
RU182455U1 (ru) * 2017-08-09 2018-08-17 Общество с ограниченной ответственностью "ТРИАЙ" Водогрейный твердотопливный котел длительного горения
RU183159U1 (ru) * 2017-08-09 2018-09-12 Общество с ограниченной ответственностью "ТРИАЙ" Водогрейный твердотопливный котел длительного горения
CZ308666B6 (cs) * 2018-10-22 2021-02-03 Kovosta - fluid a.s. Sestava fluidního kotle a způsob spalování alespoň dvou druhů paliv ve fluidním kotli

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FI20105365A0 (fi) 2010-04-09
FI123120B (fi) 2012-11-15

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