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环模挤压造粒技术设备占地少、工艺简单、产品质量稳定、生产成本低，为国内中小型复混肥企业广泛采用。但是，制粒机的关键组件造粒环模的使用寿命短，却是一大缺陷。 我厂１９９７年３月购进１台ＫＹＷ２５型环模挤压造粒机，４月投产，至年底，共生产成品肥１２８７吨，使用
Ring die extrusion granulation equipment occupies less land, simple process, stable product quality, low production costs, the domestic small and medium-sized compound fertilizer companies widely used. However, the granulation ring mold, the key component of the granulator, has a short service life but is a major drawback. I plant in March 1997 purchased a Taiwan KYW25 Central extrusion extrusion granulator, put into operation in April, by the end of the year, a total of 1287 tons of finished fertilizer production, use