应用曼海姆炉生产硫酸钾过程中的几点经验

Some experiences of appling Mannheim Stove to produce potassium sulfate

通过不断的探索和借鉴,该公司确定了应用曼海姆炉生产硫酸钾的技术指标为:m(颗粒氯化钾)∶m(粉末氯化钾)=2∶1.5,加入1t硫酸用8kg白灰来中和,耙臂的转数为1r/min。对曼海姆炉的烟道部分、反应炉炉床部分、反应室顶部(碳化硅)部分进行了改造,并增设了电磁铁和连锁装置。其技术已达到同行业先进水平,产品优级品率达到100%,曼海姆炉的维修周期已延长到18个月,设备维修率也大大降低。

Through long - term and unceasing exploration and drawing lessons from others, Heilongjiang Qiqihar Chemical Co. , Ltd. has confirmed its technical indexes for producing potassium sulfate by using Mannheim Stove, which were m（granular KC1） ： m（powder KC1） =2：1.5 ;use 8 kg lime to neutralize,when adding 1 t sulfuric acid;the revolution of drag ann was 1 r/min. In addition,improvements have been made for some parts of Mannheim Stove,such as chimney flue, reactive stove bed, the top of reaction chamber （ silicon carbide ）. The electro - magnet and interlocking device also have been set up. Its technology came up to the advanced level in the same trade and the super - grade product took up 100% of the whole products. The maintaining period of Mannheim Stove has been extended to 18 monthes and the maintaining rate of equipments was also deelined greatly.