介绍挤压造粒抛圆工艺生产有机肥和有机-无机复混肥的工艺流程和工艺创新点。采用有机废弃物经好氧发酵得到的有机肥原料颗粒大,堆积密度小,宜采用三级组合抛光挤压造粒设备生产,生产的有机-无机复混肥成球率高达90%以上,强度大,成球水分低(w(H2O)不超过20%),且吨肥能耗低。 This paper introduces the technological process and process innovation point of extruding granulation and rounding technology to produce organic fertilizer and organic-inorganic compound fertilizer. The organic fertilizer obtained by aerobic fermentation of organic wastes has large particle size and small bulk density, and should be produced by a three-stage combination of extrusion granulation equipment. The organic-inorganic compound fertilizer produced has a balling rate of over 90% Large, into the ball water is low (w (H2O) does not exceed 20%), and tons of fertilizer low energy consumption.