Method and system for reprocessing high carbon coal fly ash to produce cementitious materials
    3.
    发明授权
    Method and system for reprocessing high carbon coal fly ash to produce cementitious materials 有权
    后处理高碳煤飞灰生产水泥材料的方法和系统

    公开(公告)号:US09284219B2

    公开(公告)日:2016-03-15

    申请号:US13516636

    申请日:2010-10-28

    摘要: A method is provided of thermally processing carbonaceous ash and ancillary carbonaceous material to produce a carbon-free inert, pozzolanic, or cementitious material and synthesis gas. The carbonaceous ash and ancillary fuels are fed into a thermal reactor along with oxides provided in the ash or in additives including limestone or glass. Carbon in the ancillary fuel and coal fly ash is converted to synthesis gas that is combusted to generate process steam and electricity. Remaining ash exits the thermal reactor chamber for processing at high temperature in a kiln gasifier to react the remaining fixed carbon and produce carbon-free partially-fused nodules or clinker that are cooled and ground to a desired fineness for cementitious or aggregate material in concrete. Carbonaceous ash, especially high carbon coal fly ash and other carbonaceous waste, are converted to energy and non-toxic, carbon-free aggregate or cementitious material used as architectural fill or in concrete mixes.

    摘要翻译: 提供了热处理含碳灰和辅助碳质材料以产生无碳惰性,火山灰或水泥质材料和合成气的方法。 碳灰和辅助燃料与灰分中提供的氧化物或包括石灰石或玻璃在内的添加剂一起进料到热反应器中。 辅助燃料中的碳和煤飞灰转化为燃烧以产生过程蒸汽和电力的合成气。 剩余的灰分离开热反应器室,在窑式气化炉中高温处理,使剩余的固定碳反应,并产生无碳的部分熔结的结核或熟料,冷却并研磨成混凝土中水泥质或骨料的理想纤度。 碳质灰,特别是高碳煤飞灰和其他碳质废物,被转化为能量和无毒的,无碳的骨料或水泥材料,用作建筑填料或混凝土混合物。

    Gasification furnace raw material supplying apparatus
    4.
    发明授权
    Gasification furnace raw material supplying apparatus 有权
    气化炉原料供给装置

    公开(公告)号:US09192900B2

    公开(公告)日:2015-11-24

    申请号:US13701592

    申请日:2011-06-13

    申请人: Makoto Takafuji

    发明人: Makoto Takafuji

    摘要: In the gasification furnace raw material supplying apparatus, the protective gas (36) is jetted toward the fluidized bed (4) formed in the fluidized bed gasification furnace (1) from an end portion on the downstream side (B) of the screw feeder (28) in the raw material supplying direction using the nozzle (42) in the screw shaft (27). In addition, the protective gas (36) is jetted toward the fluidized bed (4) from the periphery of the end portion on the downstream side (B) of the screw feeder (28) in the raw material supplying direction using the nozzles (37) provided at the furnace wall (23) of the fluidized bed gasification furnace (1). As a result, the end portion of the screw shaft (27) on the downstream side (B) in the raw material supplying direction is prevented from being exposed to the bed material which is a component of the fluidized bed (4), and abrasion of the front end portion of the screw can be suppressed.

    摘要翻译: 在气化炉原料供给装置中,保护气体(36)从螺旋给料器(1)的下游侧(B)的端部向流化床气化炉(1)中形成的流化床(4) 28)在螺杆轴(27)中使用喷嘴(42)在原料供给方向上。 另外,使用喷嘴(37)从保护气体(36)向原料供给方向从螺旋给料器(28)的下游侧(B)的端部的周边向流化床(4)喷出 )设置在流化床气化炉(1)的炉壁(23)处。 结果,防止原材料供给方向下游侧(B)的螺杆轴(27)的端部暴露于作为流化床(4)的一部分的床材料和磨损 可以抑制螺杆的前端部。

    METHOD OF AND APPARATUS FOR CONTROLLING A GASIFIER
    5.
    发明申请
    METHOD OF AND APPARATUS FOR CONTROLLING A GASIFIER 有权
    用于控制气化器的方法和装置

    公开(公告)号:US20150315500A1

    公开(公告)日:2015-11-05

    申请号:US14648321

    申请日:2013-12-04

    IPC分类号: C10J3/72 G05B15/02 C10J3/46

    摘要: A method of controlling a circulating fluidized bed gasifier includes feeding first and second portions of particulate material to be gasified through inlets in a gasifier. Oxygen and steam are fed through a bottom grid into a lower portion of the gasifier to fluidize the bed. Product gas and entrained particles are discharged from an upper portion of the gasifier. Particles are separated from the product gas and a portion of the separated particles is returned to the lower portion. A portion of the returned particles is oxidized to generate heat. Heat and oxidizing products from the lower portion are transferred to the center portion to generate the product gas. A ratio of the first and second portions of particulate material to be gasified is determined on the basis of a measured temperature profile so as to control the vertical temperature distribution in the gasifier.

    摘要翻译: 控制循环流化床气化器的方法包括通过气化器中的入口进料待气化的颗粒材料的第一和第二部分。 氧气和蒸汽通过底部格栅进入气化器的下部以使床流化。 产物气体和夹带的颗粒从气化器的上部排出。 颗粒与产物气体分离,一部分分离的颗粒返回到下部。 一部分返回的颗粒被氧化以产生热量。 来自下部的热和氧化产物被转移到中心部分以产生产物气体。 基于测量的温度分布来确定待气化的颗粒材料的第一和第二部分的比例,以控制气化器中的垂直温度分布。

    Device for removing fine-grained or dust-like solids from a container
    8.
    发明授权
    Device for removing fine-grained or dust-like solids from a container 失效
    用于从容器中除去细粒或灰尘状固体的装置

    公开(公告)号:US08430950B2

    公开(公告)日:2013-04-30

    申请号:US12736037

    申请日:2009-02-27

    IPC分类号: B01D53/14

    摘要: A device for removal of fine-grained or dust-like solids from a container that is to be pressurized or is pressurized, whereby the container is equipped with a double-walled discharge cone or funnel, avoids the use of porous materials, such as sintered metals or the like, while making available good conveyance properties in the transfer funnel, without restricting the grain sizes of the material, in each instance, whereby even particle-charged gas can be used for conveyance. The gas exit openings are larger than the largest particles of the solid to be removed, and the gas exit openings are provided with a pipe connector or gas feed channel that projects into the interior of the ring chamber and has at least one angle with an imaginary horizontal plane, and the gas feed channel is part of a retention device for preventing solid from trickling into the ring chamber.

    摘要翻译: 用于从被加压或加压的容器中除去细粒或灰尘状固体的装置,由此容器装备有双壁排出锥或漏斗,避免使用多孔材料,例如烧结 金属等,同时在输送漏斗中提供良好的输送性能,而不限制材料的粒径,因此即使使用带电荷的气体也可以用于输送。 气体出口开口大于要除去的固体的最大颗粒,并且气体出口开口设置有管连接器或气体供给通道,该管连接器或气体供给通道突出到环室的内部,并且具有至少一个与虚拟 水平面,气体供给通道是用于防止固体滴入环形室的保持装置的一部分。