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阐述了云峰分公司针对硝铵的改性自主研发的全熔融法生产高浓度硝铵磷复合肥(30-10-0)的生产技术,对生产原理、工艺流程、工艺参数、生产进展,以及技术开发过程中的设备改造等方面作了总结。在硝铵改性生产高浓度硝铵磷产品开发过程中,进行了技术创新,采用低共熔体配方对硝铵改性,在不添加阻爆剂的情况下通过国家抗爆检测试验;进行了设备创新,应用了差动双速旋转造粒机,实现了在高44 m硝铵造粒塔中生产高浓度复合肥。该技术优势明显,产品w(总养分)≥40%,w(硝态氮)/w(总氮)≥46%,质量优于国内同类产品;效益好,仅投资314万元,可增加利润4 096万元。
The production technology of high concentration ammonium nitrate phosphorus compound fertilizer (30-10-0) developed by Yunfeng Branch for the wholly melting method independently developed by modification of ammonium nitrate was expounded. The production principle, process flow, process parameters, production progress, As well as the technical development process of equipment transformation made a summary. During the course of the development of high-concentration ammonium nitrate and phosphorus ammonium nitrate-modified products, the technical innovation was carried out, the ammonium nitrate was modified with the eutectic formulation, and the national anti-explosion test was carried out without adding the anti-knocking agent; The equipment innovation, the application of a differential two-speed rotary granulator, achieved in 44 m high ammonium nitrate granulation tower to produce high concentrations of compound fertilizer. The technology has obvious advantages, the product w (total nutrients) ≥40%, w (nitrate nitrogen) / w (total nitrogen) ≥46%, the quality is better than similar domestic products; the benefit is good, only invests 3.14 million yuan, 40.66 million yuan.