一、概述石灰碳化煤球是我国小合成氨生产的主要原料之一,煤球碳化罐是碳化煤球制作的关键设备。自1977年至今,我省小氨厂煤球碳化罐发生多起爆炸事故,1977年至1979年三年间,尤溪、安溪和南安等合成氨厂先后有廿多个碳化罐发生了爆炸或破裂。如尤溪化肥厂2~#罐体原制造时壁厚为8毫米,仅使用三年八个月就发生爆炸,爆炸后对其裂口及罐壁进行测量(图2),最薄壁厚仅3 I. Overview Lime carbide briquettes is one of the main raw materials for the production of small synthetic ammonia in our country. The briquette carbonization tank is the key equipment for making carbonized briquettes. Since 1977, there have been many explosions in the small briquette briquette carbonization tank in our province. Between 1977 and 1979, more than 20 carbonization tanks have been exploded or ruptured in synthetic ammonia plants such as Youxi, Anxi and Nanan. Such as Youxi Fertilizer Plant 2 ~ # tank when the original manufacturing wall thickness of 8 mm, only three months and eight months on the explosion, the explosion after the crack and tank wall measurements (Figure 2), the thinnest wall thickness of only 3