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简述 8 0年代以来我国磷铵工业的发展历程。指出磷铵企业应通过产品结构多样化和综合经营摆脱困境、提高竞争力 ,提出磷铵联产饲料级磷酸氢钙的方案 ,并给出了简要的经济评价数据。建 1套 1 0 kt/a饲钙装置需投资 90 0万元 ,而 30 kt/a磷铵装置联产 1 0 kt/a饲钙仅需投资 50 0～ 60 0万元 ;建 1套 40 kt/a饲钙装置需投资 2 50 0万元 ,而 30 kt/a磷铵装置改产 40 kt/a饲钙仅需投入 1 0 0 0万元。用经济数据印证了盐肥结合的必要性和可行性。
Briefing the Development of Ammonium Phosphate Industry in China since the 1980s. It is pointed out that the enterprises of ammonium phosphate should diversify their product mix and get rid of their difficulties through integrated management, so as to raise their competitiveness. Proposed a plan of feed-grade calcium hydrogen phosphate with ammonium phosphate and ammonium bicarbonate together with brief economic evaluation data. A set of 10 kt / a calcium feeding device to invest 990,000 yuan, while 30 kt / a ammonium phosphate plant co-production of 10 kt / a calcium only need to invest 50 to 60 million yuan; to build a set of 40 The kt / a feeding calcium plant needs to invest 25 million yuan while the 30 kt / a ammonium phosphate plant only needs to invest 10 million yuan to feed 40 kt / a of calcium. With the economic data confirmed the necessity and feasibility of combining salt and fertilizer.