磷石膏制硫酸联产水泥熟料的竞争力——大型装置设计思路  

Competitiveness of Sulphuric Acid from Phosphogypsum with Co-production of Cement Clinker——Thinkings of Design for Large-sized Plants

作　　者：丁汝斌 丁竑广 俞德田 

机构地区：[1]济南红墅科技公司,山东济南250013 [2]江苏庆峰工程公司,江苏扬州225115

出　　处：《硫磷设计与粉体工程》2013年第2期1-5,共5页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：介绍了以硬石膏为原料生产硫酸联产水泥装置的生产实践,提出了以磷石膏为原料生产硫酸联产水泥熟料的设计构想。通过分析磷石膏品质及原燃材料的预均化,将磷石膏烧制的水泥熟料与石灰石烧制的熟料按一定比例搭配制成水泥;采用新工艺、设备及严格的操作制度,以提高设备的热利用率。按新的设计思路,以磷石膏生产硫酸联产水泥熟料可将生产设备省去一半,投资降低40%以上,窑气中φ(SO2)可提高至10%～12%,回转窑的热效率达45%,熟料热耗6 100～6 500 kJ/kg。The production practice for making sulphuric acid from anhydrite with co-production of cement is described,and the design scheme for using phosphogypsum as raw material for making sulphuric acid with co-production of cement clinker is proposed.through analysis of the phosphogypsum quality and pre-homogenization of raw material,it is thought that cement is made according to certain ratio from cement clinker made from phosphogypsum and clinker made from limestone,and the measures for new process and equipment and stringent operation rules are taken to enhance the thermal utilization rate of the equipment.Based on the new design philosophy,for sulphuric acid production from phosphogypsum with co-production of cement clinker,half of the equipment can be save,which will reduce the cost by more than 40%,φ(SO 2) in the kiln gas can be increased by 10% ～12%,thermal efficiency of the rotary kiln can reach 45%,thermal consumption of clinker 6 100 ～ 6 500 kJ / kg.

关 键 词：硫酸生产+磷石膏 水泥熟料 效果 措施 

分 类 号：TQ111.16[化学工程—无机化工]