SYSTEM AND METHOD FOR COOLING AND EXTRACTION OF HEAVY ASHES WITH INCREASE IN TOTAL BOILER EFFICIENCY
    3.
    发明公开
    SYSTEM AND METHOD FOR COOLING AND EXTRACTION OF HEAVY ASHES WITH INCREASE IN TOTAL BOILER EFFICIENCY 审中-公开
    系统和方法与总额增加锅炉冷却效率和提取重灰烬

    公开(公告)号:EP2665971A2

    公开(公告)日:2013-11-27

    申请号:EP12703161.5

    申请日:2012-01-18

    IPC分类号: F23J1/02

    摘要: A cooling system (1 ) for heavy ashes of the type apt to be used in association with a combustion chamber (2), in particular for large flows rates of ashes deriving for example from solid fossil fuel in an energy-production unit, which system (1 ) comprises: - a transport belt (31 ) for transporting the heavy ashes, apt to be arranged below the combustion chamber (2) and having a containment casing (3) and a transport surface (311) equipped with openings (9) for the transit of cooling air, which transport surface (311) is apt to receive the ashes produced in the combustion chamber (2) substantially in the form of continuous bed; and - cooling means for cooling the heavy ashes received on said transport surface (311), which cooling means comprises at least one partitioned region (4) arranged below said transport surface (311) and forced feeding means (11) for a forced feeding of cooling air at said partitioned region (4), wherein said partitioned region (4) is configured so as to limit outflows of air fed therein, and wherein the overall arrangement is such that, in use, the cooling air fed into said partitioned region (4) crosses said openings (9) in said transport surface (311) and the bed of ashes received on the latter (Fig.1).

    INTEGRATED SYSTEM FOR THE EXTRACTION OF HEAVY ASH, CONVERSION THEREOF INTO LIGHT ASH AND REDUCTION OF UNBURNT MATTER
    4.
    发明公开
    INTEGRATED SYSTEM FOR THE EXTRACTION OF HEAVY ASH, CONVERSION THEREOF INTO LIGHT ASH AND REDUCTION OF UNBURNT MATTER 有权
    用于提取重灰,将它们转换成光灰和减少未燃烧成分的集成系统

    公开(公告)号:EP1779036A1

    公开(公告)日:2007-05-02

    申请号:EP05759444.2

    申请日:2005-07-08

    IPC分类号: F23C9/06 F23J1/02 F23J3/06

    摘要: The present invention is about a process for treating all the ashes produced by a coal dust boiler (1), able to reduce the total unburnt matter content, to increase the combustion efficiency of the boiler (1), and to have the light ashes as the only waste arising from the coal combustion. In particular, said process provides for the extraction of the heavy ashes (4) from the boiler bottom (23), the ashes coming from the hoppers of the economizers (5) and the fraction of light ash richer of unburnt matter coming from the filters (11) used to collect the dust from the flue gas; said ashes are mixed in a silo (15), proportioned and transferred in one or more feeders (17) of the coal mills (18), and reintroduced in the boiler (1) after being mixed with the coal through the burners (2).

    COOLING SYSTEM FOR THE DRY EXTRACTION OF HEAVY ASHES FROM BOILERS
    6.
    发明公开
    COOLING SYSTEM FOR THE DRY EXTRACTION OF HEAVY ASHES FROM BOILERS 审中-公开
    冷却系统从锅炉重骨灰提取干

    公开(公告)号:EP2057415A1

    公开(公告)日:2009-05-13

    申请号:EP06796268.8

    申请日:2006-08-22

    发明人: MAGALDI, Mario

    IPC分类号: F23J1/02

    摘要: The present invention relates to an additional cooling system (1) for the dry extraction of large flow of heavy ashes produced by boilers (100) with solid fuel apt to decrease the temperature of the ashes. The system comprises an extractor with metallic belt (2) gathering the ash which deposits onto the bottom of the boiler (100), a crushing system (3), having the purpose of increasing the thermal exchange surface of the material, one or more metallic conveyors (4, 6) having the cooling function by introducing countercurrent air - flow running through transported ashes, an in-line cooling device (5) having the function of putting into contact the ash several times with additional countercurrent air in order to increase the possible exchange without necessarily increasing the air - flow entering the combustion chamber. Such additional air can be sent preferably upstream of the air heater or in atmosphere upon fines' captation (figure 1).

    COOLING SYSTEM FOR DRY EXTRACTION OF HEAVY BOTTOM ASH FOR FURNACES DURING THE STORING STEP AT THE HOPPER
    7.
    发明公开
    COOLING SYSTEM FOR DRY EXTRACTION OF HEAVY BOTTOM ASH FOR FURNACES DURING THE STORING STEP AT THE HOPPER 有权
    冷却系统重底灰电烤箱干提取过程中存储步骤ON料斗

    公开(公告)号:EP2032899A1

    公开(公告)日:2009-03-11

    申请号:EP07725542.0

    申请日:2007-05-21

    IPC分类号: F23J1/02

    摘要: The present invention relates to a cooling system for dry extraction of heavy bottom ash output from furnaces for solid fuel during storing step at hopper, characterized by suitable air intakes (2), placed on the sidewalls of the hopper (1) at the hopper bottom, through which a controlled amount of cooling air passes sucked up in the combustion chamber (12) by the depression value therein, capable to achieve an uniform and balanced distribution system for such air during storing step at hopper (1) which optimizes the cooling of the falling ash, leaving the total amount of the air entering the furnace unchanged. The distribution header of the intakes (2) is connected to the extractor environment (6) by the lid (7) through a suitable conduit (3) provided with automated valve (8) being open during the storing step allowing the cooling air through to pass said intakes (2) placed on the sidewalls of the hopper (1). A more efficient cooling may be obtained by any addition of water input by nozzles (14) suitably placed within the hopper (1). The water amount may be adjusted such that the ash cooling improvement function is actuated without humidifying it.

    DRY MECHANICAL CONVEYOR PLANT FOR PYRITES AND COAL DUST
    9.
    发明授权
    DRY MECHANICAL CONVEYOR PLANT FOR PYRITES AND COAL DUST 有权
    用于黄磷和煤尘的干燥机械输送装置

    公开(公告)号:EP1789727B1

    公开(公告)日:2007-12-19

    申请号:EP05776722.0

    申请日:2005-08-01

    发明人: MAGALDI, Mario

    IPC分类号: F23K3/00

    摘要: The present invention is about a conveyor plant for pyrites, other foreign materials like metal parts and occasionally ground solid fossil fuel, coming from the grinding mills of the solid fossil fuel, substantially comprising an open or enclosed metal container (1) inside which a metal conveyor belt (6) is disposed. The conveyor receives the material to be conveyed from the pyrites storage tanks (2) of each mill, through interception valves (3) and vibrating feeders (4) or directly from gravity discharge channels. Any spontaneous ignition of the conveyed material is controlled by a putting out system with water nozzles (17) or inert gas or steam admission nozzles (18) according to the plant configurations. The pyrites and the ground solid fossil fuel are collected in a stockage silo (16), it too provided with an inert gas or steam putting out system. For the storage tanks (2) a gas or steam inertization system is provided as well.

    摘要翻译: 本发明涉及来自固体矿物燃料的研磨机的用于黄铁矿,其他外来物质如金属部件和偶尔研磨的固体化石燃料的输送设备,其基本上包括敞开或封闭的金属容器(1),金属容器 传送带(6)被布置。 输送机通过截流阀(3)和振动进料器(4)或直接从重力排放通道接收待从每个磨机的黄铁矿储罐(2)输送的物料。 输送物料的任何自发点火由具有水喷嘴(17)或惰性气体或蒸汽进入喷嘴(18)的输出系统根据设备配置控制。 黄铁矿和地面固体化石燃料被收集在储存仓(16)中,它也提供惰性气体或蒸汽排出系统。 对于储罐(2)也提供气体或蒸汽惰化系统。

    DRY MECHANICAL CONVEYOR PLANT FOR PYRITES AND COAL DUST
    10.
    发明公开
    DRY MECHANICAL CONVEYOR PLANT FOR PYRITES AND COAL DUST 有权
    干式机械输送机黄铁矿和煤尘

    公开(公告)号:EP1789727A1

    公开(公告)日:2007-05-30

    申请号:EP05776722.0

    申请日:2005-08-01

    发明人: MAGALDI, Mario

    IPC分类号: F23K3/00

    摘要: The present invention is about a conveyor plant for pyrites, other foreign materials like metal parts and occasionally ground solid fossil fuel, coming from the grinding mills of the solid fossil fuel, substantially comprising an open or enclosed metal container (1) inside which a metal conveyor belt (6) is disposed. The conveyor receives the material to be conveyed from the pyrites storage tanks (2) of each mill, through interception valves (3) and vibrating feeders (4) or directly from gravity discharge channels. Any spontaneous ignition of the conveyed material is controlled by a putting out system with water nozzles (17) or inert gas or steam admission nozzles (18) according to the plant configurations. The pyrites and the ground solid fossil fuel are collected in a stockage silo (16), it too provided with an inert gas or steam putting out system. For the storage tanks (2) a gas or steam inertization system is provided as well.