EP2505916A2 - Brenner für einen erhitzer mit einem biomasse-festbrennstoff - Google Patents

Brenner für einen erhitzer mit einem biomasse-festbrennstoff Download PDF

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Publication number
EP2505916A2
EP2505916A2 EP10830162A EP10830162A EP2505916A2 EP 2505916 A2 EP2505916 A2 EP 2505916A2 EP 10830162 A EP10830162 A EP 10830162A EP 10830162 A EP10830162 A EP 10830162A EP 2505916 A2 EP2505916 A2 EP 2505916A2
Authority
EP
European Patent Office
Prior art keywords
screw
solid fuel
boiler
combustion chamber
fluid
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.)
Withdrawn
Application number
EP10830162A
Other languages
English (en)
French (fr)
Inventor
Kyo Ung Kim
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.)
INTER BIO Co
Original Assignee
INTER BIO Co
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
Priority claimed from KR1020090108526A external-priority patent/KR100959697B1/ko
Priority claimed from KR1020100109229A external-priority patent/KR20120047580A/ko
Application filed by INTER BIO Co filed Critical INTER BIO Co
Publication of EP2505916A2 publication Critical patent/EP2505916A2/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B30/00—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber
    • F23B30/02—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts
    • F23B30/06—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone
    • F23B30/10—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone with fuel-supporting surfaces having fuel advancing elements that are movable, but remain essentially in the same place, e.g. with rollers or reciprocating grate bars
    • 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
    • F23K3/10—Under-feed arrangements
    • F23K3/14—Under-feed arrangements feeding by screw
    • 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
    • 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
    • F23L5/00—Blast-producing apparatus before the fire
    • F23L5/02—Arrangements of fans or blowers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00—Feeding arrangements
    • F23K2203/10—Supply line fittings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2203/00—Feeding arrangements
    • F23K2203/20—Feeding/conveying devices
    • F23K2203/202—Feeding/conveying devices using screws

Definitions

  • the present invention relates to a burner for a biomass solid fuel boiler, and more particularly, to a burner for a boiler using solid fuel, such as wood pellets, which is being spotlighted as biomass energy.
  • the present invention relates to a biomass solid fuel boiler burner adapted to realize a new type of combustion, i.e. combustion occurs in a specific area, into which air (oxygen) is supplied by a blower, while fuel is being fed by a screw, inside which water circulates, thereby guaranteeing durability of the screw against the high temperature caused by combustion, completely processing sludge and ash, simplifying the overall boiler structure (e.g. substantially reducing the size of the boiler using solid fuel), and reducing manufacturing costs.
  • a biomass solid fuel boiler burner adapted to realize a new type of combustion, i.e. combustion occurs in a specific area, into which air (oxygen) is supplied by a blower, while fuel is being fed by a screw, inside which water circulates, thereby guaranteeing durability of the screw against the high temperature caused by combustion, completely processing sludge and ash, simplifying the overall boiler structure (e.g. substantially reducing the size of the boiler using solid fuel), and reducing manufacturing costs.
  • the present invention relates to a biomass solid fuel boiler burner including a screw formed as a hollow pipe inside the combustion chamber of the boiler to discharge sludge and ash, a circulation fan or a compressor adapted to circulate a fluid inside the hollow portion of the screw, and a cooler positioned outside the combustion chamber to cool the circulating fluid (gaseous air, liquid refrigerant, etc.) so that the fluid lowers the high temperature inside the combustion chamber, thereby improving operations and functions for efficient processing of sludge and ash while guaranteeing durability of the screw inside the combustion chamber against the high temperature caused by combustion.
  • a biomass solid fuel boiler burner including a screw formed as a hollow pipe inside the combustion chamber of the boiler to discharge sludge and ash, a circulation fan or a compressor adapted to circulate a fluid inside the hollow portion of the screw, and a cooler positioned outside the combustion chamber to cool the circulating fluid (gaseous air, liquid refrigerant, etc.) so that the fluid lowers the high temperature inside the combustion chamber, thereby improving operations
  • Biomass solid fuel typically refers to a type of renewable energy extracted from energy-dedicated crops and trees, agricultural products and fodder crops, farm wastes and leftovers, etc.
  • the movable grate type which is based on a conveyor belt (chain), etc., has a complicated mechanical structure, which increases the manufacturing cost. And the fact that a large space is occupied below the boiler makes it difficult to manufacture a high-efficiency boiler (burner). Therefore, this type is not suitable for small-sized boilers (e.g. domestic boilers).
  • the burner type and crucible type which are commonly employed to burn wood pellets, have problems related to processing of sludge and ash, which are generated in a large amount when low-quality pellets are burnt. This is one of fundamental reasons of malfunctioning of boilers.
  • the burner structure of these types makes it impractical to manufacture medium and large-sized boiler burners for commercial and industrial purposes.
  • an aspect of the present invention is to provide a biomass solid fuel burner and a boiler burner adapted to realize a new type of combustion, i.e. combustion occurs in a specific area, into which air is supplied by a blower, while fuel is being fed by a screw, inside which water circulates, thereby guaranteeing durability of the screw against the high-temperature flames caused by combustion, accurately controlling the amount of combustion by adjusting the rotation and feed rates of the screw, completely processing sludge and ash generated by combustion, simplifying the overall boiler structure (e.g. substantially reducing the size of the boiler combustion chamber), and reducing manufacturing costs.
  • a new type of combustion i.e. combustion occurs in a specific area, into which air is supplied by a blower, while fuel is being fed by a screw, inside which water circulates, thereby guaranteeing durability of the screw against the high-temperature flames caused by combustion, accurately controlling the amount of combustion by adjusting the rotation and feed rates of the screw, completely processing sludge and ash generated by combustion, simplifying the overall boiler
  • Another aspect of the present invention is to improve durability of the screw by using a refrigerant (e.g. gas or liquid) injected separately, not using water existing in the piping of the boiler, as the fluid circulating inside the screw, thereby lowering the temperature of the screw, which is inside the high-temperature combustion chamber, sufficiently.
  • a refrigerant e.g. gas or liquid
  • Another aspect of the present invention is to improve durability of the screw, which is adapted to discharge sludge and ash from the boiler combustion chamber, by lowering the temperature of the screw more efficiently using a cooler adapted to separately cool the high-temperature fluid, which circulates inside the screw, outside the boiler combustion chamber.
  • a biomass solid fuel boiler including a fuel supplier adapted to supply solid fuel; a combustion device adapted to burn the solid fuel; and a boiler body adapted to heat water using combustion heat
  • the combustion device includes a combustion chamber having a solid fuel supply hole on a front side and a sludge/ash discharge hole on a rear side, the solid fuel being burnt in the combustion chamber; a screw arranged along and in parallel with the interior of the combustion chamber and installed so as to rotate, the screw including a hollow pipe, inside which water circulates so that the screw can endure high temperature inside the combustion chamber, the screw being adapted to both feed the solid fuel and discharge sludge and ash through a rotating operation; a driver installed on a front portion of the combustion chamber to rotate the screw; and an igniter installed on a lateral portion of the combustion chamber to ignite the solid fuel.
  • This construction improves fuel efficiency and effectively processes sludge and ash.
  • the biomass solid fuel boiler preferably further includes a blowing device installed below the combustion chamber to inject air necessary for combustion into the combustion chamber.
  • the screw is preferably wound in the shape of a spring having straight portions on both ends adapted to act as fulcrums during rotation.
  • the screw is preferably connected to a boiler water tube to receive water in the boiler water tube forcibly circulated by a circulation pump.
  • the screw may be adapted so that its size can be adjusted based on boiler capacity, and a plurality of screws can be arranged in parallel and used.
  • durability of the screw which is adapted to discharge sludge and ash from the boiler combustion chamber, is improved by lowering the temperature of the screw more efficiently using a cooler adapted to separately cool the high-temperature fluid, which circulates inside the screw, outside the boiler combustion chamber.
  • FIG. 1 is a perspective view illustrating the overall shape of a burner for a biomass solid fuel boiler according to an embodiment of the present invention.
  • a boiler body 12 is provided as a means for heating water, which flows through internal piping, using combustion heat obtained by burning biomass solid fuel; a combustion device 11 is installed below the boiler body 12 as a means for burning solid fuel; and a fuel supplier 10 is installed in front of the boiler body 12 and the combustion device 11 as a means for supplying solid fuel.
  • the fuel supplier 10 may be any means capable of supplying biomass fuel, such as wood pellets, in a predetermined size condition continuously or periodically in a controlled manner (a spring screw is commonly used), detailed description thereof being omitted herein.
  • the boiler body 12 is adapted to heat water inside the piping through heat exchange with combustion heat in a conventional manner, detailed description thereof being omitted herein.
  • Reference numeral 20 refers to a fuel supply tube, which is connected to a solid fuel feeder (not shown) in front of the combustion device 11, so that solid fuel is fed into the inner front area of the combustion device 11.
  • FIGs. 2 and 3 are perspective and sectional views of a combustion device of a biomass solid fuel boiler according to an embodiment of the present invention.
  • the combustion device 11 is structured to use a screw 16 of a special type, which has excellent durability against the high-temperature condition inside the combustion chamber 15, to both feed solid fuel and efficiently process sludge and ash generated during combustion.
  • a combustion chamber 15 is provided as an elongated housing installed along and in parallel with the lower portion of the boiler body 12, and a screw 16 is installed in parallel inside the combustion chamber 15 to substantially feed solid fuel and discharge sludge and ash.
  • a solid fuel supply hole 13 is formed on the front portion of the combustion chamber 15 so that solid fuel can be introduced through it, and a sludge/ash discharge hole 14 is formed on the rear portion so that sludge and ash, which are generated after combustion, are naturally discharged and processed by the operation of the screw 16.
  • the screw 16 consists of a hollow pipe, inside which water circulates.
  • the overall shape of the screw 16 is as follows: it has straight portions 16a on both ends, and is wound in the shape of a spring 16b so as to push solid fuel or sludge and ash towards one side.
  • Such construction of the screw 16, inside which water flows, enables the screw to endure any high temperature occurring during combustion, meaning that it can fulfill the role of feeding solid fuel and discharging sludge and ash without being deformed or burnt down by heat.
  • the screw 16 is supported on the front and rear wall surfaces of the combustion chamber 15 via bearings, for example, using the straight portions on both ends, respectively, so that the screw 16 rotates, as a driver 17 is actuated, and pushes solid fuel, sludge, and ash towards one side.
  • the driver 17 includes a motor 21, a belt 22, and pulleys 23.
  • the motor 21 is installed on one side of a frame 24.
  • the pulleys 23 are installed on a shaft of the motor 21 and on a straight portion of the screw 16, which extends to the outside through the front portion of the combustion chamber 15, respectively.
  • the belt 22 is installed to connect between the two pulleys 23.
  • the driver 17 can adopt any other transmission type, such as chain transmission, gear transmission, motor direct-connection transmission, etc.
  • water inside the boiler water tube may be used.
  • the front and rear straight portions of the screw 16 are provided with valves 25, respectively, and are connected to piping 26 (e.g. hose) extending from the boiler water tube through a coupler (not shown), so that water forcibly circulated by a boiler-side circulation pump (not shown) can also circulate inside the screw 16.
  • piping 26 e.g. hose
  • a boiler-side circulation pump not shown
  • the screw 16 can be arranged in various numbers and configurations depending on the boiler capacity.
  • a small-sized boiler e.g. domestic boiler
  • a single row of small screw may be arranged and used.
  • a large-sized boiler e.g. industrial boiler
  • a large screw or multiple rows of a plurality of screws may be arranged in parallel and used.
  • boilers of various capacities can be obtained by properly setting the screw size, the number of screws, the capacity of the blowing device (described later), etc.
  • the combustion device 11 is provided with a blowing device 19 to help efficient complete combustion of solid fuel.
  • the blowing device 19 includes a blowing fan, etc., and is installed in a predetermined position below the combustion chamber 15, preferably on an introduction portion into which solid fuel is introduced, to supply an adequate amount of wind necessary for combustion into the combustion chamber 15, thereby guaranteeing more efficient solid fuel combustion.
  • An igniter 18 is installed in a lateral area of the combustion chamber 15, e.g. next to the introduction portion into which solid fuel is introduced, to enable initial ignition of solid fuel during boiler operation.
  • the igniter 18 may be an ignition means used for a conventional solid fuel boiler (electric ignition rod, electric heat wind ignition, etc.).
  • FIG. 5 illustrates a schematic operating condition of the biomass solid fuel boiler according to an embodiment of the present invention.
  • biomass solid fuel e.g. wood pellets
  • the following ignition by the igniter 18 starts combustion of the solid fuel, and following injection of air by the blowing device 19 results in the main phase of combustion of the solid fuel.
  • combustion heat which is generated by intense combustion of the solid fuel, heats water flowing through the boiler's internal piping and thus provides hot water and steam as needed.
  • a suitable amount of solid fuel is continuously or periodically supplied into the combustion chamber 15 of the combustion device 11 (the amount of supplied fuel can be controlled using a fuel introduction screw), and the concurrent slow rotation of the screw 16, which is driven by the driver 17, feeds the solid fuel to the combustion area (area into which air is injected by the blower) to be burnt therein.
  • the water in a high-temperature condition, is introduced into a water tube inside the boiler, in the case of a hot-water boiler.
  • the water is transferred to a condensation water tank and fed into the boiler at a high temperature to be recycled. This prevents the minimum heat loss that would otherwise occur due to the cooling action of the screw inside the combustion chamber.
  • sludge or ash which is generated by combustion of the solid fuel, is repeatedly pushed back by rotation of the screw 16, and is eventually discharged to the outside through the sludge/ash discharge hole 14, which is on the end of the combustion chamber 15, to be processed.
  • the present invention employs a screw, which has a special shape and a cooling type, and substantially improves problems of conventional solid fuel boiler burner structures, i.e. excessive manufacturing cost, bulky combustion furnace, difficulty in processing sludge and ash, etc.
  • screw provided by the present invention makes it possible to manufacture a boiler capable of properly using various types of fuel, which has a predetermined particle size or less, including not only wood pellets, which are being spotlighted as biomass energy, but also wood chips, farm byproducts, livestock excretion pellets, etc.
  • FIG. 6 illustrates fluid circulation inside a screw of a biomass solid fuel boiler according to another embodiment of the present invention
  • FIG. 7 illustrates fluid circulation operation in a screw of a biomass solid fuel boiler according to another embodiment of the present invention
  • FIG. 8 illustrates a schematic operating condition of a biomass solid fuel boiler according to another embodiment of the present invention.
  • the fluid circulating inside the screw 16 is not used as water inside the boiler water tube, unlike the above-described embodiment of the present invention. That is, according to another embodiment of the present invention, it is preferable to use a separate gas or liquid refrigerant, for example, which is introduced from the outside.
  • gas, liquid, or water in the boiler piping flows inside the screw 16 as a fluid (refrigerant), so that the cooling action of the fluid flowing inside the screw 16 enables the screw 16 to endure the high-temperature environment inside the combustion chamber 15 without being deformed.
  • the present invention does not use the water, which exists inside the boiler, for the hollow pipe-shaped screw 16, but injects a separate fluid (e.g. gas or liquid), which acts as a refrigerant, from the outside to lessen the high temperature inside the combustion chamber and enable the screw to fulfill its role.
  • a separate fluid e.g. gas or liquid
  • the present invention may include, in order for a separate fluid to circulate, fluid circulation piping 28, a circulation fan or a compressor 30, a fluid injection/discharge hole 31, an injection/discharge valve 32, and a cooler 33.
  • the present invention includes a fluid injection/discharge hole 31 for injecting a fluid into the fluid circulation piping 28 from outside the combustion chamber or discharging the fluid from it.
  • a fluid circulating inside the screw 16 is injected into a separate fluid injection/discharge hole 31, and, when the lifetime of the fluid is over or when it needs to be replaced, the fluid is discharged through the fluid injection/discharge hole 31, thereby guaranteeing that it fulfills the role of lowering the high temperature.
  • the fluid injection/discharge hole 31 is typically opened/closed by the injection/discharge valve 32, as shown in FIGs. 6 and 7 , to adjust the injection/discharge of the fluid.
  • the fluid circulation piping 28 is, as shown in FIG. 7 , connected to both ends of the screw 16 so that the fluid is circulated to the outside of the boiler's combustion chamber, and the circulated fluid is cooled outside the boiler.
  • the fluid circulation piping 28 includes a circulation fan or a compressor 30, which is adapted to push the fluid into the hollow pipe-shaped screw 16, to introduce the fluid into the hollow pipe-shaped screw inside the combustion chamber.
  • the high-temperature fluid which is circulated from the screw 16 through the fluid circulation piping 28, is cooled down by a cooler 33, which is adapted to cool the fluid outside the combustion chamber, and is re-circulated into the screw 16. This improves durability of the screw 16 while it is enabled to operate in the high-temperature combustion chamber.
  • the circulation fan or compressor 30, as shown in FIGs. 6 and 7 is adapted to push the fluid into the hollow pipe-shaped screw 16, and is installed on the fluid circulation piping 28.
  • the fluid circulating inside the hollow portion of the screw 16 may be gas functioning as refrigerant, or a liquid-state refrigerant.
  • the circulation fan or compressor 30 may consist of a blowing fan or a compressor, for example; and, when the circulating fluid is liquid (e.g. refrigerant), it may consist of a compressor or a screw fan, for example.
  • the cooler 33 exists outside the combustion chamber of the boiler to cool down the fluid, the temperature of which has increased in the screw 16 of the combustion chamber, and re-circulate the fluid to the screw 16. That is, the high-temperature fluid, which has passed through the screw 16, is cooled down outside the combustion chamber to lower the temperature of the fluid, which is to circulate to the combustion chamber, and improve durability inside the high-temperature combustion chamber.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Solid-Fuel Combustion (AREA)
EP10830162A 2009-11-11 2010-11-10 Brenner für einen erhitzer mit einem biomasse-festbrennstoff Withdrawn EP2505916A2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020090108526A KR100959697B1 (ko) 2009-11-11 2009-11-11 바이오매스 고체연료 보일러용 버너
KR1020100109229A KR20120047580A (ko) 2010-11-04 2010-11-04 바이오매스 고체연료 보일러용 연소기
PCT/KR2010/007918 WO2011059230A2 (ko) 2009-11-11 2010-11-10 바이오매스 고체연료 보일러용 버너

Publications (1)

Publication Number Publication Date
EP2505916A2 true EP2505916A2 (de) 2012-10-03

Family

ID=43992212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10830162A Withdrawn EP2505916A2 (de) 2009-11-11 2010-11-10 Brenner für einen erhitzer mit einem biomasse-festbrennstoff

Country Status (4)

Country Link
US (1) US20120227728A1 (de)
EP (1) EP2505916A2 (de)
CN (1) CN102686945A (de)
WO (1) WO2011059230A2 (de)

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CN103090363A (zh) * 2013-02-08 2013-05-08 胡光 绞龙扰动式生物质燃烧器
CN103438431B (zh) * 2013-08-19 2019-04-02 龚水明 一种生物质固体燃料锅炉
EP3193083A1 (de) * 2016-01-14 2017-07-19 Solontrack, S.L. Roste für horizontale brenner für festen brennstoff
CN106594783A (zh) * 2017-01-04 2017-04-26 江苏鸿烤电器有限公司 一种烧烤炉的送料及燃烧机构
CN107702131A (zh) * 2017-11-21 2018-02-16 威海腾罡智能科技有限公司 取暖炉
CN108895432A (zh) * 2018-08-01 2018-11-27 湖南德赛厨房设备有限公司 生物质颗粒燃料燃烧系统及生物质颗粒燃料商用灶
IL304659A (en) * 2022-10-27 2024-05-01 PEREZ Hadar furnace
PL445867A1 (pl) * 2023-08-22 2025-02-24 Bartosz Roszkowski Kocioł grzewczy na paliwo stałe

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Also Published As

Publication number Publication date
WO2011059230A2 (ko) 2011-05-19
WO2011059230A3 (ko) 2011-09-22
CN102686945A (zh) 2012-09-19
US20120227728A1 (en) 2012-09-13

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