摘要
针对现有热法磷酸二步法水化塔存在余热未被利用的问题,提出水化塔余热利用方案及装置。根据能量平衡得到水化塔的能流图,建立水化塔的热平衡方程式,得到水化塔的热效率正反平衡、塔内换热量、产汽量和各项热损失的计算式,分析了提高水化塔热利用效率的技术措施,并进行实例计算。
Aiming at the problem that the waste heat of the hydration tower of two-step thermal phosphoric acid process was not utilized,a waste heat utilization scheme and device for the hydration tower was proposed.According to the energy balance,the energy flow chart of the hydration tower was obtained,and the heat balance equation of the hydration tower was established.The calculation formula of the thermal efficiency positive and negative balance of the hydration tower,the heat exchange amount in the tower,the steam production and various heat losses were obtained.Technical measures to improve the heat utilization efficiency of the hydration tower were analyzed and an example calculation was conducted.
作者
王政伟
李晓博
梁慧力
李佩萤
Wang Zhengwei;Li Xiaobo;Liang Huili;Li Peiying(Changzhou University,Changzhou 213164,China)
出处
《无机盐工业》
CAS
CSCD
北大核心
2020年第11期95-98,共4页
Inorganic Chemicals Industry
基金
江苏省研究生科研与实践创新计划项目(SJX18_0966)。
关键词
热法磷酸
水化塔
热平衡
热利用效率
thermal process phosphoric acid
hydration tower
heat balance
heat utilization efficiency