Method and system of denitration of rotary kiln flue gas

The invention provides a method and system of denitration of rotary kiln flue gas. The rotary kiln flue gas is waste gas generated by sintering raw slurry in a rotary kiln and the method comprises the following steps: mixing the raw slurry with a solution of a reducing agent with stirring to obtain...

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Bibliographische Detailangaben
Hauptverfasser:	HAN JINGKUI, MA BINGYUAN, LIU ZHILAI, ZHANG SHENG, ZHOU LIPING, DENG ZHONGGUI, LIU AIMIN, AN AIWEN, SU JIE, SUN ZHENBIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING MECHANICAL ENGINEERING OVENS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL RETORTS SEPARATION TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides a method and system of denitration of rotary kiln flue gas. The rotary kiln flue gas is waste gas generated by sintering raw slurry in a rotary kiln and the method comprises the following steps: mixing the raw slurry with a solution of a reducing agent with stirring to obtain a mixed solution, and spraying the mixed solution into the rotary kiln to perform heating to realize denitration of the rotary kiln flue gas. The denitration method can effectively realize wet denitration of the rotary kiln flue gas, and the flue gas denitration rate is 49.7% or above, in addition the method is safe, effective, economical and efficient. 本发明提供种回转窑烟气脱硝方法及系统，所述回转窑烟气为在回转窑中烧结生料浆所产生的废气，所述方法包括如下步骤：将所述生料浆与还原剂溶液混合搅拌生成混合液，将所述混合液喷入所述回转窑中进行加热，实现所述回转窑烟气的脱硝。该脱硝方法能够有效实现湿法回转窑烟气脱硝，并且烟气脱硝率在49.7％以上，安全有效，经济高效。