论文部分内容阅读
我厂精矿脱水,原设计为浓密机、圆盘真空过滤机、干燥机组成的三段脱水工艺。长期以来,由于设备效率低,造成能耗高、备件消耗高和金属流失高的“三高一低”的被动局面。据测定每天仅从烟囱流失的铜金属就有56.7kg,每天损失14.175t,价值6.45万元,而且还要消耗燃料煤705t,同时严重污染环境。由于环保治理的要求和节能的需要,70年代制定了取消干燥作业,实现两段脱水的规划。但开始只是在真空过滤机上做文章,反复改进滤饼水份降到15.6％,仍达不到14％的要求。直到80年代,压滤机迅速发展后,我们最后决定选用自动化程度高、结构
I plant concentrate dehydration, the original design thickener, disc vacuum filter, dryer composed of three paragraphs dehydration process. For a long time, due to the low efficiency of equipment, high energy consumption, high consumption of spare parts and high metal loss “three high and one low” passive situation. It is determined that only 56.7kg of copper metal is lost from the chimney everyday, resulting in a loss of 14.175t per day, worth 64,500 yuan, but also consuming 705 tons of fuel coal and seriously polluting the environment. Due to the requirements of environmental protection and the need for energy saving, the 1970s formulated a plan to cancel the drying operation and realize the two-stage dehydration. But at the beginning just make a fuss about the vacuum filter, repeatedly improve the cake moisture dropped to 15.6%, still less than 14% of the requirements. Until the 80s, filter press rapid development, we finally decided to use a high degree of automation, structure