水溶液全循环法四万吨尿素通用设计装置产品质量的提高,是小氮肥厂转产尿素后必定会遇到的问题。由于诸多的原因,许多小尿素产品质量不高。据了解,转产的数拾家小尿素厂中多数产品的一级品率在50％以下,优级品率则更低。因而提高产品质量已成为迫切需要解决的重要问题。 A total solution of 40,000 tons of urea aqueous solution Universal Design Device product quality improvement, conversion of urea nitrogen plant will inevitably encounter problems. For many reasons, many small urea products are not of high quality. It is understood that the conversion of the pick up a small plant in the majority of urea products in a product rate of 50% or less, excellent product rate is lower. Therefore, improving product quality has become an urgent issue that needs to be solved urgently.