Filter bag for bag-type dust collector, bag-type dust collector and flue gas mercury removal method

The invention provides a filter bag for a bag-type dust collector. The filter bag comprises a base cloth and a filter material. The filter bag is characterized in that a mercury adsorbent is arranged between the base cloth and the filter material, the mercury adsorbent comprises metal-modified activ...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN XINGWANG, LIN CHIQIAN, ZHANG ZHERAN, JIN YUJIAN, ZHANG YUAN, WANG JIANCHUN, CHEN XURONG, ZHAN WEIQUAN, LIN WENFENG, LIN CHUNYUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention provides a filter bag for a bag-type dust collector. The filter bag comprises a base cloth and a filter material. The filter bag is characterized in that a mercury adsorbent is arranged between the base cloth and the filter material, the mercury adsorbent comprises metal-modified active carbon fibers and the metal and mercury can form an amalgam. The filter bag is used in flue gas mercury removal. Flue gas to be treated goes through a bag-type dust collector with the filter bag so that dust is removed and flue gas mercury is removed. The method has full contact reaction time of mercury in flue gas and the mercury adsorbent in the filter bag. The mercury adsorbent has a high mercury adsorption saturation capacity. The metal in the mercury adsorbent and mercury form a stable amalgam so that adsorption efficiency and capacity are greatly improved. The filter bag maximally reduces flue gas dust-caused influence on mercury removal. The method has high mercury removal efficiency.