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我厂现有两台硫化钠罐,在运行中曾发生了几起破损事故,给生产及安全都带来了不利影响。1 设备结构与工艺简介硫化钠罐是非那西丁原料药生产中的主要设备,其结构为立式圆筒体,椭圆形封头,外设有夹套,内设有单层桨式搅拌器,搅拌轴转速75转/分,罐内下封头上侧装有金属蓖子,搅拌叶位于蓖子下部。罐内工作压力为常压,夹套内蒸汽压力为0.4MPa。其生产工艺过程是:将固体块状硫化钠(Na_2S)投入罐内篦子上面
I plant two existing sodium sulfide tank, in operation there have been several incidents of damage, have brought adverse effects on production and safety. 1 Equipment Structure and Process Introduction Sodium sulfide tank is phenacetin raw materials in the production of major equipment, the structure of the vertical cylinder, oval head, the outer jacket, equipped with a single layer paddle stirrer , Stirring shaft speed of 75 rev / min, the tank is equipped with a lower end of the head metal grate, grate impeller is located in the lower part. The working pressure in the tank is atmospheric, and the steam pressure in the jacket is 0.4 MPa. The production process is: the solid bulk sodium sulfide (Na2S) into the pot above the grate