磷酸二铵产品外观质量改善措施
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摘要
分析利用湖北省黄麦岭磷化工有限责任公司低品位锰质磷矿生产磷酸二铵存在的问题及影响因素,并从装置系统优化、磷矿质量控制、包裹油选择及生产过程控制等方面制定改善措施。经过3次技改后,粒度2～4 mm产品合格率从85%提升至95%以上,磷酸二铵产品颗粒强度从25～30 N提升至35～45 N,外观圆润度和晶体感明显提升,满足了客户的需求。
The existing problems and its causal factors of DAP production from low grade phosphate rock with high manganese content of Hubei Provincial Huangmailing Phosphate Chemical Co., Ltd. are analyzed. The improvement measures are made from plant system optimization, control of phosphate rock, coating oil selection, process control. After technical transformation,the qualification rate of particle size for 2-4 mm is improved from 85% to more than 95%, the product particle intensity is improved from 25-30 N to 35-45 N,the appearance roundness and crystal sense is improved obviously,which can meet the demand of customers.
The existing problems and its causal factors of DAP production from low grade phosphate rock with high manganese content of Hubei Provincial Huangmailing Phosphate Chemical Co., Ltd. are analyzed. The improvement measures are made from plant system optimization, control of phosphate rock, coating oil selection, process control. After technical transformation,the qualification rate of particle size for 2-4 mm is improved from 85% to more than 95%, the product particle intensity is improved from 25-30 N to 35-45 N,the appearance roundness and crystal sense is improved obviously,which can meet the demand of customers.
引文
[1]王永宏.改善磷酸二铵产品外观质量的分析与对策[J].磷肥与复肥,2011,26(2):28-32.
[2]江善襄.磷酸、磷肥和复混肥料[M].北京:化学工业出版社,1999.
[2]江善襄.磷酸、磷肥和复混肥料[M].北京:化学工业出版社,1999.