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针对40万t/a大型料浆法粒状重钙装置改产粒状磷铵产品存在的关键工序与产能不匹配,筛分、收尘、尾气处理系统不能满足生产要求等问题,通过现状分析和技术研究,对反应、造粒、筛分、收尘、尾气处理等工序提出技术改进方案,并实施技术改造。通过技术改进,实现利用重钙装置生产多规格磷铵产品,为实现产品结构调整发挥了积极作用,对行业内类似装置具有借鉴意义。
Aiming at the problems of the key processes and capacity mismatch, screening, dust collection, tail gas treatment system can not meet the production requirements of the large-scale slurry granulated calcium carbonate plant with a capacity of 400,000 t / a, the present situation analysis and technology Research, the reaction, granulation, screening, dust collection, exhaust gas treatment and other processes proposed technological improvement programs, and the implementation of technological transformation. Through technical improvements, the production of multi-specification ammonium phosphate products by using the TSP device has played a positive role in the adjustment of product structure and has reference significance for similar devices in the industry.