论文部分内容阅读
我们的锑精鑛焙烧作业,使用挥发焙烧法,在生产中存在着很多缺点.(一)鑛砂粒度在20公厘以下的,不能多处理(处理比不到10％),因为碎砂多了,炉内通风不良,焙烧不完全,造成炉渣含锑量增高,损失国家资源。(二)每日进料次数少,每次进料量多,使空气供给不均衡,不能满足氧化的需耍。(三)山于错误地控制火焰温度为900°～1050℃,加强抽风,促使炉内“高温带”上升至料层面以上。但实际上,料柱内的温度由于进入冷室气过多,反而下降,形成红渣层薄、冷渣层厚的现象,因此达不到氧化所需要的温度和时间。
Our antimony concentrates roasting operation, using the volatile roasting method, there are many shortcomings in the production of (a) sand particle size below 20 mm, can not be multi-processing (less than 10% treatment), because more broken sand , Poor ventilation in the furnace, incomplete roasting, resulting in an increase of slag containing antimony, the loss of state resources. (B) the number of daily feed less, each feed more, the air supply is not balanced, can not meet the needs of oxidation. (III) Shan mistakenly controls the flame temperature to be 900 ° -1050 ° C, and enhances ventilation so that the “high temperature zone” in the furnace rises above the material level. However, in fact, the temperature inside the column due to excessive cold into the chamber, but decreased, forming a red slag layer, cold slag layer thick phenomenon, so the required temperature and time of oxidation.