PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH STEAM PIPING DRYING
    2.
    发明申请
    PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH STEAM PIPING DRYING 审中-公开
    采用蒸汽管道干燥技术降低燃煤发电厂煤层消耗的工艺

    公开(公告)号:US20110214427A1

    公开(公告)日:2011-09-08

    申请号:US13039707

    申请日:2011-03-03

    IPC分类号: F01K17/06

    CPC分类号: F01K17/06 Y02P70/405

    摘要: The present invention relates to a process for reducing coal consumption in coal fired power plant with steam-piping drying, namely a steam-piping drying system is provided between a coal grinding mill and a coal powder bunker as well as a weighing belt of the prior coal fired boiler generating set, and superheated steam which have done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.

    摘要翻译: 本发明涉及一种通过蒸汽管道干燥来降低燃煤电厂煤耗的方法,即在磨煤机和煤粉仓之间设置蒸汽管道干燥系统以及先前的称重带 燃煤锅炉发电机组和部分工作的过热蒸汽从蒸汽轮机中提取出来,用作干燥介质,煤粉中含有的水分被显热和过热蒸汽的潜热蒸发, 过热蒸汽的冷凝通过用于再循环的冷凝泵进入蒸汽轮机的除气器。 本发明具有减少煤耗,节约煤炭,回收余热,减少二氧化碳排放,采取国家节能减排工业政策的优势。

    Process for reducing coal consumption in coal fired power plant with fluidized-bed drying
    3.
    发明授权
    Process for reducing coal consumption in coal fired power plant with fluidized-bed drying 有权
    采用流化床干燥技术降低燃煤电厂煤耗的工艺

    公开(公告)号:US08661821B2

    公开(公告)日:2014-03-04

    申请号:US13040016

    申请日:2011-03-03

    IPC分类号: F01K7/34 B09B3/00

    摘要: The present invention relates to a process for reducing coal consumption in coal fired plant with fluidized-bed drying, namely a fluidized-bed drying system is provided between a coal powder bunker as well as a weighing belt and a coal grinding mill of the prior coal fired boiler generating set, and superheated steam which has done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.

    摘要翻译: 本发明涉及一种通过流化床干燥来降低燃煤发电厂煤耗的方法,即在煤粉仓和称重带之间设置流化床干燥系统和现有煤的煤磨机 燃烧锅炉发电机组,从蒸汽轮机抽出部分作业的过热蒸汽,作为干燥介质,煤粉中所含的水分由显热和过热蒸汽的潜热,冷凝产生的水蒸发 的过热蒸汽通过用于再循环的冷凝泵进入蒸汽轮机的除气器。 本发明具有减少煤耗,节约煤炭,回收余热,减少二氧化碳排放,采取国家节能减排工业政策的优势。

    PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH FLUIDIZED-BED DRYING
    4.
    发明申请
    PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH FLUIDIZED-BED DRYING 有权
    采用流化床干燥技术降低燃煤发电厂煤层消耗的工艺

    公开(公告)号:US20110220744A1

    公开(公告)日:2011-09-15

    申请号:US13040016

    申请日:2011-03-03

    IPC分类号: B02C21/00

    摘要: The present invention relates to a process for reducing coal consumption in coal fired plant with fluidized-bed drying, namely a fluidized-bed drying system is provided between a coal powder bunker as well as a weighing belt and a coal grinding mill of the prior coal fired boiler generating set, and superheated steam which has done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.

    摘要翻译: 本发明涉及一种通过流化床干燥来降低燃煤发电厂煤耗的方法,即在煤粉仓和称重带之间设置流化床干燥系统和现有煤的煤磨机 燃烧锅炉发电机组,从蒸汽轮机抽出部分作业的过热蒸汽,作为干燥介质,煤粉中所含的水分由显热和过热蒸汽的潜热,冷凝产生的水蒸发 的过热蒸汽通过用于再循环的冷凝泵进入蒸汽轮机的除气器。 本发明具有减少煤耗,节约煤炭,回收余热,减少二氧化碳排放,采取国家节能减排工业政策的优势。

    DRYING PROCESS FOR DRYING LIGNITE BY SWASHING DUST COLLECTING AND WASHING
    5.
    发明申请
    DRYING PROCESS FOR DRYING LIGNITE BY SWASHING DUST COLLECTING AND WASHING 审中-公开
    干燥方法用于通过洗涤灰尘收集和洗涤来干燥木质素

    公开(公告)号:US20110167668A1

    公开(公告)日:2011-07-14

    申请号:US12987768

    申请日:2011-01-10

    IPC分类号: F26B7/00 F26B3/02

    CPC分类号: F26B11/04 C10L9/00

    摘要: The present invention relates to A drying process for drying lignite by swashing dust collection and washing, comprising steps of: conveying wet powdered coal into a dryer by a feed belt so as to be dried; introducing hot steam for drying via a rotary joint at an outlet end of the dryer and into a heat exchange tube via a steam chamber; having the wet powdered coal contact and heat exchange with a steam pipe and dried; discharging the dried coal from an discharge port and conveying the dried coal to a subsequent station by a discharging belt; introducing condensed water resulted from steam heat exchange into a condensate pot via a rotating joint and then conveying the condensed water to a next station via a condensate pump; performing a primary dust collecting in a bin at a tail end of the dryer on waste gas produced during the drying process, discharging the waste gas from a top end of the bin and the introducing the waste gas into a swashing dust collector; discharging waste liquid resulted from washing the waste gas from a bottom of the swashing dust collector, conveying the waste liquid discharged from the swashing dust collector via a waste liquid pump. In the present invention, lignite is dried with steam latent heat, and the dried waste gas is washed by a gravity settlement and swashing dust collection so as to assure that the waste gas is discharged after reaching a standard value and avoid the risk of taking fire and explosion occurred in a dry-type dust collecting way.

    摘要翻译: 本发明涉及通过粉尘收集和洗涤来干燥褐煤的干燥方法,包括以下步骤:通过进料带将湿粉煤输送到干燥机中以进行干燥; 通过干燥器的出口端处的旋转接头引入热蒸汽以通过蒸汽室进入热交换管; 与湿粉煤接触并与蒸汽管进行热交换并干燥; 从排出口排出干燥的煤,并通过排放带将干燥的煤输送到后续的站; 引入通过旋转接头将蒸汽热交换到冷凝罐中的冷凝水,然后经由冷凝泵将冷凝水输送到下一站; 在干燥过程中产生的废气上,在干燥机尾端的垃圾箱内进行一次粉尘收集,从垃圾箱的顶端排出废气,并将废气引入粉碎集尘器; 从排出的集尘器的底部清洗废气而排出的废液通过废液泵输送从排出的集尘器排出的废液。 在本发明中,褐煤用蒸汽潜热干燥,干燥废气通过重力沉降和粉尘收集来洗涤,以确保废气在达到标准值后排出,避免发生火灾的风险 爆炸发生在干式集尘方式。