安庆石化对该厂生产的“全国名牌产品”、“2 0 0 2年度全国免检产品”———“双环牌”尿素进行技术“保养” ,增设了尿素过筛和大块尿素破碎装置 ,降低尿素中的粉尘含量 ,进一步提高“双环”牌尿素的外观质量。这一技改项目于 2 0 0 3年 1月完成 ,使“双环牌”尿素售价比竞争 Anqing Petrochemical Technology “maintenance” of “National Famous Brand Product” and “National Inspection-Free Product of 2002” --- “Shuanghuai Brand” produced by the plant, adding urea screening and bulk urea crushing device to reduce Dust in urea content, to further improve the “double ring” brand urea appearance quality. This technical reform project was completed in January 2003, so that “Shuanghuan card” urea price competition