Coal gas production system for main air saturation by using condensation section circulating water

一种应用冷凝工段循环水进行主风饱和的煤气生产系统

Abstract

The utility model discloses a coal gas production system for main air saturation by using condensation section circulating water, which comprises a feed system and a coal gas producer, wherein the coal gas producer is provided with an upper section coal gas outlet and a lower section coal gas outlet; mixed coal gas output by the upper section coal gas outlet sequentially passes through an electric dust collector, an indirect cooler and an electric oil trap to implement gas-liquid separation, and the separated coal gas is delivered to users; high-temperature mixed coal gas output by the lower section coal gas outlet is delivered to a cyclone dust collector and a washing saturation tower; low-temperature circulating water sprayed from the top of the saturation tower cools the high-temperature mixed coal gas, and the heated circulating water enters the washing section to perform humidification saturation on air which enters via the air inlet; and the air subjected to humidification saturation is used as a gasifying agent. The main air humidification saturation technique, which consumes abundant energies in the coal gas production process, can be performed in the washing saturation tower by using the circulating water in the circulating tank, thereby greatly lowering the consumption of fresh water and energies and achieving the goals of energy saving and emission reduction.
本实用新型公开了一种应用冷凝工段循环水进行主风饱和的煤气生产系统,包括:进料系统;煤气发生炉:煤气发生炉具有上段煤气出口和下段煤气出口;上段煤气出口输出的混合煤气,依次经过电气除尘器、间冷器和电捕油器完成气液分离,分离的煤气输送至用户;下段煤气出口输出的高温混合煤气,输送至旋风除尘器和洗涤饱和塔;饱和塔顶部喷洒的低温循环水,对高温混合煤气降温,升温后的循环水进入所述洗涤段,为由所述进风口进入的空气进行增湿饱和;增湿饱和后的空气作为气化剂。使得在煤气生产过程中十分耗费能源的主风增湿饱和工艺能够利用循环池中的循环水在洗涤饱和塔中进行,大大降低了新鲜水和能源的消耗和达到了节能减排的目的。

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