论文部分内容阅读
一般设计能力为年产3000吨合成氨的小氮肥厂,通过技术改造后,可以达到年产7000吨合成氨生产能力,吨氨单耗由原来的2655万大卡下降到1562万大卡,吨氨可节约标煤1533公斤,全年可节约标煤1.2万吨以上,具体技术措施是:(1)针对上海产kZL-4型锅炉弱点,将引风机更新放大为9＃风机,改善了炉内燃烧工况。(2)设置空气预热器,利用烟道气预热入炉空气达90℃。(3)将软水罐实行串连、改为逆流再生。(4)使用732＃树脂,软水硬度由原来的0.5毫克当量/升下降到0.1毫克当量/
The general design capacity of an annual output of 3,000 tons of ammonia nitrogen fertilizer plant, through technological innovation, can achieve an annual output of 7,000 tons of ammonia production capacity, tons of ammonia consumption from 26.55 million kcal dropped to 15.62 million kcal, tons of ammonia Saving 1533 kilograms of standard coal and saving 12,000 tons of standard coal over the whole year. The specific technical measures are as follows: (1) According to the weakness of Shanghai-made kZL-4 boilers, the induced draft fan is updated and enlarged to a 9 # fan to improve the combustion in the furnace Condition. (2) Set the air preheater, preheat the flue gas into the furnace air up to 90 ℃. (3) The soft water tank in series, replaced by counter-current regeneration. (4) using 732 # resin, soft water hardness from the original 0.5 meq / l down to 0.1 meq /