Flue gas cooling dust arrester installation of outer hot type reducing roasting rotary kiln

一种外热式还原焙烧回转窑的烟气冷却收尘装置

Abstract

本实用新型公开了一种外热式还原焙烧回转窑的烟气冷却收尘装置,安装在回转窑的窑头一侧,它是由烟气管道(10)、烟气冷却器(16)、冷却收尘装置风机(15)、布袋收尘器(18)顺序连接构成,在烟气冷却器(16)下端装有集尘抽屉(19),所述的烟气冷却器(16)采用U型冷却器。烟气冷却收尘装置的烟气管道(10)的温度保持在1050-1200℃,冷却收尘装置风机的入口温度小于150℃。本实用新型具有运行平稳、可靠、有色金属挥发率高以及有色金属在烟尘中高效富集回收的特点,其中含铁尘泥中铅和锌的挥发率可分别达到90%和95%以上,烟尘中氧化锌的品位可达到70%以上。
The utility model discloses a flue gas cooling dust arrester installation of outer hot type reducing roasting rotary kiln installs in the kiln hood of rotary kiln one side, and it is connected by flue gas pipeline (10), gas cooler (16), cooling dust arrester installation fan (15), cloth screen (18) order to constitute, is equipped with album dirt drawer (19) at gas cooler (16) lower extreme, gas cooler (16) adopt U type cooler. The temperature of flue gas pipeline (10) of flue gas cooling dust arrester installation keeps at 1050-1200 DEG C, and the inlet temperature of cooling dust arrester installation fan is less than 150 DEG C. The utility model has the characteristics of operate steadily, reliably, the high-efficient enrichment in the smoke and dust of non ferrous metal volatility height and non ferrous metal retrieves, wherein volatility plumbous and zinc can reach respectively more than 90% and 95% among the iron content sludge, and the grade of zinc oxide can reach more than 70% in the smoke and dust.

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