介绍在过磷酸钙生产中,综合利用饲料级磷酸氢钙配套的磷酸装置副产磷石膏的几种方法。将磷石膏直接掺入过磷酸钙一级品中,或者直接掺入过磷酸钙的鲜肥中,不会影响产品的质量、转化率、物性。将磷石膏与磷矿粉制浆后生产过磷酸钙,其产品转化率有所降低,而且会增加球磨机和混合器的生产负荷,降低产量。 This article introduces several ways to synthesize by-product phosphogypsum from phosphoric acid plant that is used in feed grade calcium hydrogen phosphate in the production of superphosphate. Phosphogypsum directly into the first product of superphosphate, or directly into the superfluous calcium fertilizer will not affect product quality, conversion rate, physical properties. The phosphogypsum and phosphate rock pulping production of superphosphate, the conversion rate of their products decreased, and will increase the ball mill and mixer production load, reduce production.