7kt/a磷酸装置与氯化钾低温转化相结合 ,经特制的管道反应器 ,转鼓造粒 ,可生产 14 14 14 ,1515 15 ,16 16 16 ,氯根小于 3% (也可小于 1.5 % )的 S NPK。介绍该工艺流程、主要设备、工艺条件。试生产取得的效果 :产量达 7～ 7.5 t/h(设计能力 5 0 kt/a) ,含氮量最高可达 17% ,颗粒圆整光滑 ,成球率达 70 %～ 80 % ,较喷浆造粒节电 15～ 2 0 k W· h/t,节省投资 30 0～ 5 0 0万元 ,产品规格可调性大。 7kt / a phosphoric acid unit combined with low temperature conversion of potassium chloride, through a special pipeline reactor, drum granulation, can produce 141414, 151515, 161616, chloride less than 3% (also less than 1.5% ) Of S NPK. Describe the process, the main equipment, process conditions. The results of trial production are as follows: the output reached 7-7.5 t / h (design capacity of 50 kt / a), the highest nitrogen content was 17%, the particles were round and smooth, the balling rate reached 70% ~ 80% Slurry granulation power saving 15 ~ 20kW · h / t, saving investment 30 0 ~ 5 0 million, product specifications adjustable.