摘要:锡渣中含有比较可观有价金属、氧化物和硫化物等,所以对锡渣的处理有可观的经济价值。另外,锡渣中也含有大量有毒有害物质,直接排放会给环境造成很大的影响。本论文结合国外先进的技术,采用烟化炉处理锡渣,提高锡渣的回收率。用烟化炉处理锡渣,是将大部分锡渣放入烟化炉内,添加一定比例的配料,再将温度较高的锡渣通入烟化炉内,通入煤粉使它在高温下燃烧,在用布袋收尘圆盘制粒机制成半成品。
本论文通过通过烟化炉处理锡渣工艺和工艺选择,根据锡渣的年处理量(1.5万吨),计算出所需物料,根据物料多少性质确定设备的选择,所采用烟化炉的大小和类别,最后设计出合理、经济的工艺流程,车间布局和能量补给。
关键词: 锡渣;烟化炉;锡渣处理;车间设计;年处理量
ABSTRACT:Tin smelting using either by fire or wet process, tin sulfide concentrate before roasting. Therefore, the roasting of sulfide ore is extracted from tin concentrate tin metal first metallurgical process. tin sulfide concentrate by roasting process is at a high temperature by means of oxygen in the air for oxidation desulfurization process, in order to change its composition in order to adapt to the requirements of the next step of metallurgical process. Roasting the aim and requirements to decide the next step production process. In the face of tin ore resource is becoming more and more problems, only by improving the roasting of tin concentrate quality can improve the yield, reduce the consumption of resources.
In this paper, through the fuming furnace tin slag process and process selection ,according to annual production (150000 tons), calculate the required material, according to the amount of materials properties determine the choice of equipment, used in baking furnace size and type, finally design a reasonable, economic process, the layout and energy supply.
Keywords:Tin dross; Fuming furnace; Tin slag treatment; Plant design; The annual handing capacity