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发明公开
CN102192639A 一种增设流化床干燥降低燃煤电厂煤耗的方法 无效 - 撤回

一种增设流化床干燥降低燃煤电厂煤耗的方法
摘要：
本发明提出的是一种增设流化床干燥降低燃煤电厂煤耗的方法，即在现有燃煤锅炉发电机组中的煤粉料仓+称重皮带与磨煤机之间增设流化床干燥系统，并从汽轮机抽出做过部分功的过热蒸汽作为干燥介质，利用过热蒸汽的显热和潜热使煤粉中的水份蒸发，过热蒸汽冷凝成水后通过凝液水泵送入汽轮机组的除氧器循环使用。本发明的特点是节煤降耗、余热回收利用、减少二氧化碳排放量，适应国家节能减排的产业政策。
摘要（英）：

The invention provides a method for reducing coal consumption of a coal-fired power plant by adding a fluidized bed drying system, namely a fluidized bed drying system is added between a coal powder storehouse as well as a weighing belt and a coal mill in the conventional coal-fired boiler generator set; overheated steam which does partial work is extracted out from a steam turbine and used as a drying medium; due to sensible heat and latent heat of the overheated steam, water in the coal powder is evaporated; and the overheated steam is condensed into water, and water is sent into an oxygen remover of a steam turbine set through a condensed water pump and used circularly. The method has the characteristics of saving coal and reducing consumption, recycling and reusing afterheat and reducing carbon dioxide emission, along with adaptability to an industrial policy of energy saving and emission reduction in China.

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