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德昌化工有限责任公司每年副产肥料级磷酸氢钙 0 .7万吨 (干基 ) ,为使饲钙生产有较好的经济效益 ,该公司分别在过磷酸钙和硫基复合肥生产中添加肥钙 ,每年可完全消化肥钙。该文主要介绍硫基复合肥生产中添加肥钙的工艺技术 ,通过物热衡算说明每生产 1吨硫基复合肥可添加 2 0 0 kg肥钙 (干基 )的可行性。投入运行数月 ,各项指标稳定 ,年可创经济效益 2 0 0万元 ,缺点是硫基复合肥养分含量仅 4 0 %左右 ,氨耗提高 3%。
Johnson Chemical Co., Ltd. annual output of 0.70 million tons of calcium phosphate dough (dry basis), in order to feed calcium production have better economic benefits, the company respectively in the production of superphosphate and sulfur-based compound fertilizer Add fertilizer calcium, every year can completely digest fertilizer calcium. This paper mainly introduces the technology of adding calcium fertilizer in the production of sulfur-based compound fertilizer, and shows that it is feasible to add 200 kg of fat calcium (dry basis) for every 1 ton of sulfur-based compound fertilizer produced through physical heat balance calculation. Put into operation for several months, the indicators are stable, the annual economic benefit of 20000000 yuan, the disadvantage is the sulfur-based compound nutrient content of only about 40%, ammonia consumption increased by 3%.