浅谈我国复混肥料(复合肥料)工业(编辑修改稿)

浅谈我国复混肥料(复合肥料)工业(编辑修改稿)内容摘要：

calcium nitrate, ammonia neutralization of mother liquor and evaporation process of slurry are discussed based on its increasing slurry viscosity, rowing fine crystal and troubling filtration in production of nitrophosphate by nitric acid deposing phosphate rock. Adopting concentrated phosphate rock raw material and making some technological improvements are feasible ways for stable operation before a reliable defluorinated technique from liquid phase is invented. 硝酸磷肥装置粉尘回收系统的改造 李阳宝，薛继勇，尹 汾，牛 山，薄奋勇 (天脊煤化工集团公司，山西 潞城 047507) 【饲料磷酸盐】 混合法生产磷酸二氢钙 葛 斌 (襄樊市化工厂，湖北 襄樊 441002) ［关键词］ 磷酸二氢钙；混合法；工程设计； 生产；效益 ［摘 要］ 介绍以湿法磷酸生产的饲料级磷酸氢钙和热法磷酸为原料，采用混合法 — 气流烘干流程生产磷酸二氢钙的方法。 着重谈了在此种流程的工程设计和生产中应注意的问题。 对以常见的 4种钙品粉体直接与热法磷酸混合生产磷酸二氢钙的效益作了简评。 Production of MCP by mixing process GE Bin (Xiangfan Chemical Factory, Xiangfan, Hubei 441002, China) Key words: monocalcium phosphate (MCP)。 mixing process。 engineering design。 production。 benefit Abstract: The feed grade DCP by wetprocess phosphoric acid production and thermalprocess phosphoric acid are as raw materials for MCP production with mixingpneumatic drying process. The engineering design of process and operation are discussed and the MCP benefits are pared, which are manufactured by 4 calcium chemicals reacting with thermalprocess phosphoric acid respectively. 【硫 酸】 硫酸生产中内喷文氏管的设计 李烈栋 (湖南今天化肥化工股份有限公司 松化分公司，湖南 常宁 421513) ［关键词］ 硫酸；内喷文氏管；旋转流；喷头 ［摘 要］ 从分析内喷文氏管喷头旋流特征入手，建立有关数学模型或表达式，提出对内喷文氏管喷头、收缩管支管内径、喷嘴与喉管距离进行设计的方法，并对设计中值得注意的问题进行理论和实践上的讨论。 Phosphate amp。 Compound Fertilizer 6 Design of Venturi scrubber with internal injection in sulfuric acid production LI Liedong (Songhua Branch, Jintian Fertilizer and Chemicals Co., Ltd, Changning, Hunan 421513, China) Key words: sulfuric acid。 Venturi scrubber with internal injection。 swirl fluid。 sprayer Abstract: Beginning at the characteristic analysis of swirl fluid in Venturi scrubber with internal injection, some concerned mathematical models and expressions are established. Then the design methods for the sprayer, inner diameter of shrinking pipe branch, spout and choke are presented. Some design items in theory and practice are discussed. 干燥塔的技术改造 赵 霞 (番禺凤山实业总公司，广东 广州 511483) 【复 混 肥】 30 kt/a 复混肥生产线的运行经验 熊惠文 （安徽华星化工股份有限公司，安徽 和县 238251) ［关键词］ 复混肥；运行；经验 ［摘 要］ 根据 30 kt/a复混肥生产线运行中存在的问题及其处理所取得的经验，讨论在复混肥设计中，设备的平面布置、设备 (如固体输送机、链磨机、烘干机等 )选用时应注意的问题。 Performance of pound fertilizer plant with 30 kt/a capacity XIONG Huiwen (Huaxin Chemical Stock Co., Ltd, Hexian, Anhui 238251, China) Key words: pound fertilizer。 operation。 experience Abstract: Based on some existing problems in the operation of pound fertilizer plant with 30 kt/a capacity and experiences to solve the problems, some suggestions for plant design are presented about the selection and layout of equipment, including solid conveyer, chain crusher and drier. 过磷酸钙在高浓度复肥生产中的应用 张洋球 (安庆石化 复合肥厂，安徽 安庆 246001) ［关键词］ 高浓度；复混肥；生产；过磷酸钙；应用 ［摘 要］ 通过技改，在高浓度复肥生产中掺用一定量 (每吨产品加入 66kg SSP)理化性质欠佳的过磷酸钙，改进了高浓度复肥的生产配方，每吨原料生产成本降低 21 元，能耗降低 6 元， 5万吨 /年复肥厂年创经济效益 135万元。 Application of SSP in highanalysis pound fertilizer production ZHANG Yangqiu (Compound Fertilizer Plant of Anqing Petrochemical Company, Anqing,Anhui 246001, China) Key words: highanalysis。 pound fertilizer。 production。 single superphosphate (SSP)。 application Abstract: Through experiment, a modified formula is given of 66 kg SSP raw material with poor physicochemical property in per ton finishing product of highanalysis pound fertilizer, which results in decreasing 21 RMB Yuan raw material cost and 6 RMB Yuan energy consumption. So, annual economic benefit of million RMB Yuan will be brought for pound fertilizer plant with 50kt/a capacity. 低温下熔融原料生产复合肥 Phosphate amp。 Compound Fertilizer 7 包同力 (宁夏丰友化工有限公司 ，宁夏 银川 750021) 尿素 过磷酸钙系复混肥“析晶”的原因及预防措施 张志勇，李志远 (山东农业专用肥料厂，山东 齐河 251121) ［关键词］ 尿素；过磷酸钙；复混肥；析晶；规律 ［摘 要］ 尿素 过磷酸钙系复混肥料在夏季存放时易出现“析晶”现象，导致产品粉化而带来经济损失 ，对该问题进行初步的原因分析，并提出几种预防措施。 The cause of crystal precipitation in pound fertilizer based on ureaSSP and its preventive measures ZHANG Zhiyong, LI Zhiyuan (Shandong Agricultural Specialty Fertilizer Plant, Qihe, Shandong 251121, China) Key words: urea。 single superphosphate (SSP)。 pound fertilizer。 crystal precipitation。 rule Abstract: In summer storage, pound fertilizer based on ureaSSP is likely to crystal precipitation and crash, leading to economic loss to the producer. The causes are examined and several countermeasures are presented. 尿素 过磷酸钙系复混肥料生产的一种新工艺 董 彬 (四川康达集团 复合肥厂，四川 威。