Method and apparatus for producing a coal/water mixture for combustion
in a fluidized bed unit
    1.
    发明授权
    Method and apparatus for producing a coal/water mixture for combustion in a fluidized bed unit 失效
    用于生产用于在流化床单元中燃烧的煤/水混合物的方法和设备

    公开(公告)号:US4850700A

    公开(公告)日:1989-07-25

    申请号:US197860

    申请日:1988-05-24

    CPC classification number: C10L1/326 F23K1/02 Y10S366/601

    Abstract: A method and apparatus for producing a coal/water mixture for combustion in a fluidized bed unit. To produce a hydraulically transportable coal/water mixture, crushed raw coal is preliminarily mixed with water in a first stage. This mixture is final mixed in a second mixing stage. The fine grain-size fraction required for the hydraulic transport is generated in the first mixing stage. The viscosity of the mixture present in the second mixing stage is determined, and as a function thereof additional water is added to the mixture in the second mixing stage, and/or the mixing process in the first mixing stage is altered in order to alter the fine grain-size fraction.

    Abstract translation: 一种生产用于在流化床单元中燃烧的煤/水混合物的方法和装置。 为了生产水力可运输的煤/水混合物,在第一阶段将压碎的原煤与水预先混合。 在第二混合阶段将该混合物最终混合。 在第一混合阶段产生用于液压输送所需的细粒度级分。 确定在第二混合阶段中存在的混合物的粘度,并且作为其功能,在第二混合阶段向混合物中加入另外的水,和/或改变第一混合阶段中的混合过程以便改变 细粒度分数。

    Method for operating a combined gas turbine/steam turbine process
    2.
    发明授权
    Method for operating a combined gas turbine/steam turbine process 失效
    组合式气体涡轮机/蒸汽涡轮机运行方法

    公开(公告)号:US5212941A

    公开(公告)日:1993-05-25

    申请号:US756843

    申请日:1991-09-06

    CPC classification number: F02C3/205 F01K23/062 F02C6/003

    Abstract: In a method for operating a combination of a gas turbine process and a steam turbine process, in which the superimposed boosted gas turbine process is operated with compressed air and a combustible fluid, and the steam turbine process is operated via a fluidized bed furnace with a carbonaceous solid fuel, whereby the combustion in the fluidized bed furnace is performed with the oxygen-containing exhaust gases of the superimposed gas turbine process and electrical energy is generated with both processes, the efficiency is increased by expanding the exhaust gases of the superimposed gas turbine process only to an extent to which the fluidized bed furnace is operable as a pressurized fluidized bed and subjecting the exhaust gases of the pressurized fluidized bed furnace, after removing solid particles, to a second gas turbine process for further expansion and then to a heat exchange with the compressed air of the superimposed gas turbine process; the air for the superimposed gas turbine process is subjected to a two-stage compression with recooling, whereby the compressing energy for the first stage is derived from the second gas turbine process and the compressing energy for the second stage is derived from the superimposed gas turbine process.

    Abstract translation: PCT No.PCT / EP90 / 00367 Sec。 371日期1991年10月30日 102(e)日期1991年10月30日PCT 1990年3月6日PCT公布。 出版物WO90 / 10785 日本1990年9月20日。在一种用于操作燃气轮机过程和蒸汽涡轮机过程的组合的方法中,其中叠加的增压燃气轮机过程用压缩空气和可燃液体操作,并且蒸汽轮机过程被操作 通过具有碳质固体燃料的流化床炉,由此,通过叠加的燃气轮机过程的含氧废气和两个过程产生电能来进行流化床炉中的燃烧,通过扩大 叠加的燃气轮机过程的废气仅在流化床炉可操作为加压流化床的程度上,并且在除去固体颗粒之后使加压流化床炉的废气在第二燃气轮机过程中进一步 膨胀然后与叠加燃气轮机过程的压缩空气进行热交换; 用于重叠燃气轮机过程的空气经过二级压缩再冷却,由此第一级的压缩能源来自第二级燃气轮机过程,第二级的压缩能源来自叠加的燃气轮机 处理。

    Fluidized bed combustion system that is controllable under pressure
    3.
    发明授权
    Fluidized bed combustion system that is controllable under pressure 失效
    在压力下可控的流化床燃烧系统

    公开(公告)号:US5051040A

    公开(公告)日:1991-09-24

    申请号:US518914

    申请日:1990-05-04

    CPC classification number: F23C9/003 F02C3/205 Y02E20/14

    Abstract: A fluidized bed combustion system that can be operated or controlled under pressure is provided. To eliminate the erosion or abrasion to which heat exchangers located in a fluidized bed combustion chamber are subjected due to the flue dust contained in the flue gas, no thermal withdrawal or exchange takes place in the combustion chamber of the inventive fluidized bed combustion system, although the reaction conditions remain the same. At least one controllable line for returning to the combustion chamber part of the flue gas, if necessary cooled by heat exchangers variously arranged outside the combustion chamber, branches off from the flue gas line downstream of a dust separator that is disposed in the flue gas line downstream of the combustion chamber. The main area of application is the production of electrical energy and heat for the generation of steam, as process heat, or as heat for a remote site, by means of a fluidized bed combustion system that can be operated or controlled under pressure.

    Abstract translation: 提供可在压力下操作或控制的流化床燃烧系统。 为了消除位于流化床燃烧室中的热交换器由于烟道气中所含的烟道灰尘而受到侵蚀或磨损,在本发明的流化床燃烧系统的燃烧室中不会发生热回收或交换,尽管 反应条件保持不变。 至少一条可控制的管道,用于返回到烟道气的燃烧室部分,如果需要由各种布置在燃烧室外部的热交换器所冷却,则从布置在烟道气管线中的灰尘分离器的下游的烟气管线分支 燃烧室下游。 主要的应用领域是通过可在压力下操作或控制的流化床燃烧系统生产电能和热量,用于产生蒸汽,作为过程热,或作为远程场所的热。

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