• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to boilers (1) for solid fuels, in particular pellets, with a combustion chamber (2), wherein in the region of the bottom (2a) of the combustion chamber (2) at least one movable grate assembly (6) is provided. In order to reduce the ash-related maintenance, it is provided that the grate arrangement (6) in the region of the bottom (2a) of the combustion chamber (2) at least two displaceable between a closed position and an open position grate parts (6a, 6b).
    公开号:AT510715A4
    申请号:T106/2011
    申请日:2011-01-27
    公开日:2012-06-15
    发明作者:Josef Ing Goiginger
    申请人:Windhager Zentralheizung Technik Gmbh；
    IPC主号:
    专利说明:

    φ φ 15314
    The invention relates to a solid fuel boiler, in particular pellets, with a combustion chamber, wherein at least one movable grate assembly is provided in the region of the bottom of the combustion chamber.
    From the publications GB 313 757 B and GB 229 866 waste incineration plants with sliding grate arrangements are known, wherein in each case the grate can be moved by a displacement device in the horizontal direction. Combustion residues are stripped off at a scraping edge in the lower region of a combustion chamber wall. Since the grate is formed in one piece, a relatively large amount of space is required to move the grate laterally, which is why sliding brackets from Piatzgründen for smaller and medium sized boilers can not be used.
    From AT 501 610 A a Pelletsheizkessei with a combustion chamber is known, wherein below the combustion chamber, a container for receiving ash and combustion residues is arranged, The resulting ash combustion of the pellets falls through a combustion grate, in an arranged in the combustion chamber floor ash container , To better exploit the container volume, a shaker is provided in the container, whereby the resulting ash is leveled. The intervals for the removal of the containers for the purpose of manual emptying can thus be extended.
    The ash discharge is significantly dependent on the passage openings of the grate. To avoid falling through the introduced pellets body, the openings must not be too large. However, smaller passages have the disadvantage that ash and combustion residues are not completely discharged from the combustion chamber. This increases the maintenance and cleaning costs.
    The object of the invention is to reduce the maintenance effort and to allow an improved ash discharge from the combustion chamber.
    This is inventively achieved in that the grate assembly in the region of the bottom of the combustion chamber has at least two displaceable between a closed position and an open position grate parts.
    The grate parts can be arranged in a plane, preferably normal to a vertical axis of the combustion chamber, displaceable against each other, wherein preferably the grates are not or minimally spaced in the closed position and minimally spaced in the open position.
    The two grate parts give in the open position preferably the bottom portion of the combustion chamber completely free, so that accumulating ash and combustion residues can fall freely into a arranged under the combustion chamber collecting space.
    The combustion chamber may be formed substantially pot-shaped, wherein preferably the combustion chamber has a substantially cylindrical combustion chamber wall in a lower part facing the grate parts.
    The grate parts are preferably closed, so open, executed. This allows easy production of the grate parts. But it is also possible to carry out the grate parts with, for example, wave-shaped expansion slots. These expansion slots cause a release of adhering deposits as a result of temperature-induced expansion phenomena.
    The displacement of the grate parts is carried out by at least one actuating device, wherein preferably the actuating device per Rosttei! has at least one meshing with a gear rack.
    Because the movable grate arrangement has at least two grate parts displaceable grate parts, an air feed device can open into the combustion chamber to improve combustion in the central region of the combustion chamber bottom, wherein each grate part has at least one preferably semicircular recess for the air feed device in the central region.
    In a particularly preferred embodiment of the invention, it is provided that an ash collecting space is arranged below the grate arrangement, and that at least one ash container is arranged spatially separated from the ash collecting space, wherein between the ash collecting space and the ash container a preferably provided by a screw conveyor ash conveyor is provided. Ashes and combustion residues can thus be transported automatically from the collecting chamber of the boiler in a separate from the boiler ash container. This allows the use of large-volume ash containers, whereby the emptying intervals of the ash container can be significantly extended. The maintenance of the boiler can thus be reduced to a minimum.
    The invention will be explained in more detail below with reference to FIGS.
    1 shows a boiler according to the invention in a first embodiment in an oblique view, FIG. 2 shows the boiler in a section according to the line II-II in FIG. 3, FIG. 3 shows the boiler in a section according to the line III- In Fig. 2, Fig. 4, the combustion chamber and the actuator for the grate parts in the closed position in a longitudinal section, Fig. 5, the combustion chamber and the actuator for the grate parts in the closed position in an oblique view, Fig. 6, the grate parts together with actuator in 7 shows the grate parts in the closed position in a further oblique view, Fig. 8 shows the combustion chamber and the actuator for the grate parts in the open position in a longitudinal section, Fig. 9 the combustion chamber and the actuator for the grate parts in open Position in an oblique view, Fig. 10, the grate parts together with actuator in ge opened position in an oblique view and Fig. 11, the grate parts in the open position in a further oblique view.
    The boiler 1 has a substantially pot-shaped combustion chamber 2, in which via a pellet feed 3 of the solid fuel formed by pellets via a screw conveyor 4 from a arranged next to the boiler 1 pellet container 5 is fed.
    The bottom 2a of the combustion chamber 2 is formed by a grate assembly 6 with two oppositely relative to each other sliding grate parts 6a, 6b, the two plate-shaped grate parts 6a, 6b can be moved via an actuator 7 normal to the vertical axis 2 'of the combustion chamber 2. Each grate part 6a, 6b is closed in the embodiment, that is formed without openings. However, it is also possible to carry out the grate parts 6a, 6b with slots which are not shown in any more detail. As a result of thermal expansion and shrinkage processes of the grate parts 6a, 6b, any deposits can be solved thereby.
    In a central region of the bottom 2a around the vertical axis 2 ', an air supply device 8 for primary air opens into the combustion chamber 2, the air supply device 8 having a bell-shaped outflow part 8a. The grate parts 6a, 6b have around the air supply device 8 around corresponding circular recesses 9, wherein the radius of the recesses 9 may correspond approximately to the radius of the bottom 8a 'of the outflow part 8a.
    The grate parts 6a, 6b are fixedly connected to racks 12, 13, wherein each rack 12, 13 are meshingly engaged with a common gear 14. The racks 12, 13 are diametrically arranged with respect to the gear 14, ie above or below. Each rack is firmly connected to a respective grate part 6a, 6b. The racks 12, 13 and thus the two grate parts 6a, 6b can thus be moved in opposite directions with a single gear 14.
    The combustion chamber wall 2b is surrounded by an annular air passage 17 for supplying secondary air via air outlet openings 18 arranged in the combustion chamber wall 2b.
    To avoid contamination and increased wear, the actuator 7 is integrated outside the boiler 1 in the subsequent to the boiler 1 tank module 20. As a result, contamination and wear of the actuator 7 can be substantially reduced.
    As can be seen from FIGS. 1 to 3, a collecting space 21 for ash and unburned parts is arranged below the combustion chamber 2. The actual ash container 22 is spatially separated from the boiler 1 in the memory module 20 accommodated. The storage module 20 comprises the pellet container 5 and the ash container 20. In the bottom region of the collecting space 21, a conveying device formed by a screw conveyor 23 is arranged between the collecting space 21 and the ash container 22.
    The pellets are introduced from the Pelletsbehäiter 5 via the screw conveyor 4 and the feeder 3 in the combustion chamber 2, wherein they burn with supply of primary and secondary air. Ash and unburned combustion residues accumulate in the bottom portion 2a of the combustion chamber 2 and are removed at regular or irregular intervals by shifting the two grate portions 6a, 6b from the closed position to the open position, whereby the ash and the combustion residues are scraped off by the lower edge 19 of the combustion chamber wall 2b , Ash and combustion residues fall into the collecting chamber 21 arranged below the combustion chamber 2. The screw conveyor 23 conveys the ash and the combustion residues from the collecting space 21 into the adjacent ash container 22.
    The removal of the ash from the combustion chamber 2 and the deposition of the ash in the ash container 22 can be carried out automatically. Due to the spatial separation of the ash container 22 from the receiving space 21 of the boiler 1, the ash container 22 can be carried out with a relatively large volume, whereby emptying of the ash container can be carried out at relatively large intervals.
    权利要求:
    Claims (11)
    [1]
    1. A boiler (1) for solid fuel, in particular pellets, with a combustion chamber (2), wherein in the region of the bottom (2a) of the combustion chamber (2) at least one movable grid arrangement (6) is provided characterized in that the grate assembly (6) in the region of the bottom (2a) of the combustion chamber (2) at least two displaceable between a closed position and an open position grate parts (6a, 6b).
    [2]
    2. Heating boiler (1) according to claim 1, characterized in that the grate parts (6a, 6b) in a plane, preferably normal to a vertical axis (2 ') of the combustion chamber (2), are arranged in opposite directions displaceable.
    [3]
    3. Heating boiler (1) according to claim 1 or 2, characterized in that the grate parts (6a, 6b) in the Schließsteliung are not or minimally spaced apart in the open position and maximum.
    [4]
    4. Heating boiler (1) according to one of claims 1 to 3, characterized in that the combustion chamber (2) is substantially cup-shaped, wherein preferably the combustion chamber (2) has a substantially cylindrical combustion chamber wall (2b) in one of the grate parts (6a , 6b) facing lower portion.
    [5]
    5. Heating boiler (1) according to one of claims 1 to 4, characterized in that each grate part (6a, 6b) and / or the carrier plate (16) is formed respectively by a plate.
    [6]
    6. A heating boiler (1) according to claim 5, characterized in that at least one, preferably each plate in the region adjacent to the combustion chamber (2) is open area.
    [7]
    7. Heating boiler (1) according to claim 5 or 6, characterized in that at least one plate has at least one expansion slot.
    [8]
    8. A heating boiler (1) according to any one of claims 1 to 6, characterized in that the grate parts (6a, 6b) by at least one Betätigungseinrich device (7) are displaceable, wherein preferably the actuating device (7) per grate part (6a, 6b) at least one with a gear (14) meshing rack (12, 13), wherein preferably the racks (12, 13) are arranged diametrically to the gear (14).
    [9]
    9. A heating boiler (1) according to claim 8, characterized in that the actuating device (7), in particular the toothed racks (12, 13) and the gear (14), at least predominantly in one of the fired space and / or the ash collecting space (21). spatially separated space is arranged.
    [10]
    10. A heating boiler (1) according to one of claims 1 to 9, characterized in that in a central region of the combustion chamber bottom (2 a) an air supply device (8) opens into the combustion chamber (2), wherein each grate part (6 a, 6 b) In the central region, at least one preferably semicircular recess (9) for the air supply device (8).
    [11]
    11. Boiler (1) according to one of claims 1 to 10, characterized in that below the grate assembly (6) a collecting space (21) is arranged for ashes, and that spatially separated from the collecting space (21) at least one ash container (22) is, between the collecting space (21) and the ash container (22) is preferably provided by a screw conveyor (23) formed ash conveyor. 2011 01 27 Fu / St

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    同族专利:
    公开号 | 公开日
    AT510715B1|2012-06-15|
    DE102011055015B4|2021-07-29|
    DE102011055015A1|2012-08-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE460823C|1928-06-06|Fritz Hezinger|Heating furnace with pull-out grate and adjustable burner for the optional burning of coal or gas|
    GB229866A|1924-03-07|1925-03-05|Heenan & Froude Ltd|Improvements in refuse destructor furnaces|
    GB313757A|1928-06-25|1929-06-20|Heenan & Froude Ltd|Improvements in refuse destructors|
    DE701731C|1936-08-01|1941-01-22|Rheinmetall Borsig Akt Ges|Dust firing|
    DE936230C|1951-11-13|1955-12-07|Carl Alfred Simon|Grate with two grate plates one above the other|
    AT501610B1|2005-05-31|2006-10-15|Windhager Zentralheizung Ag|SOLID BOILER|
    ITPD20060341A1|2006-09-15|2008-03-16|Mario Calvi|"BRAZIER PARTICULARLY FOR STOVES AND BOILERS WITH SOLID FUEL"|ITBO20130460A1|2013-08-09|2015-02-10|Amantini Projects S N C|BURNER DEVICE FOR SOLID FUELS|
    FR3046455B1|2015-12-31|2020-08-14|Actinov|PELLET STOVE CRUCIBLE TO AVOID PYROLISE PHENOMENA WHEN START-UP OF STOVES, ESPECIALLY FOR WATERTIGHT STOVES|
    HU1700093A2|2017-03-02|2018-09-28|Primus Net Kft|Pellet boiler with grid burner and proceedings of the combustion to maintain|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA106/2011A|AT510715B1|2011-01-27|2011-01-27|HEATING BOILERS FOR SOLID FUELS|ATA106/2011A| AT510715B1|2011-01-27|2011-01-27|HEATING BOILERS FOR SOLID FUELS|
    DE102011055015.1A| DE102011055015B4|2011-01-27|2011-11-03|Solid fuel boilers|
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