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hua fei chang an qi dui gong ren de wei hai
Author(s): 
Pages: 16
Year: Issue:  5
Journal: Occupation and Health

Keyword:  氮肥厂化肥厂碳酸氢铵氨气浓度生产工艺危害眼结膜炎煤燃烧作业工人设备系统;
Abstract: <正> 近年来,各地纷纷建起小型氮肥厂,据不完全统计,目前我国有碳酸氢铵氮肥厂1400多个,按合成氨产量划分,年产氨低于4.5万吨的小型氮肥厂占90%以上。其生产工艺基本一样,即用原煤燃烧造气发生CO—CO2,经水洗、脱硫、精炼、转换与氨水中和,母液离心甩干成碳酸氢铵,成品装入塑料袋外运。生产过程中,由于设备系统的跑冒滴漏,精炼、合
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