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1. 发明授权

US09561988B2 Method for preparing controlled release fertilizer with water-based coating on the basis of closed circulating fluidized bed, and device therefor 有权
标题翻译：在封闭循环流化床的基础上制备具有水性涂层的控释肥料的方法及其装置
公开(公告)号：US09561988B2
公开(公告)日：2017-02-07
申请号：US14388817
申请日：2012-04-23
申请人： Changwen Du , Yazhen Shen , Jianmin Zhou
发明人： Changwen Du , Yazhen Shen , Jianmin Zhou
IPC分类号： C05G3/00 , B05B13/00 , B05B7/02 , B05B12/00
CPC分类号： C05G3/0029 , B05B7/02 , B05B12/004 , B05B13/00 , C05G3/0011 , Y02P20/123
摘要： Disclosed is a method for making a controlled release fertilizer with water-based coating using a closed large numerically controlled fluidized bed and a device therefor: collecting a granular fertilizer with a suitable granule size into a barrel; sucking the same into a coating cavity by negative pressure and making the same fluid; directing a water-based coating liquid into a spray gun, then spraying the liquid onto the surface of the fertilizer granules after nebulization; collecting the impurities in the air discharged from the coating cavity by means of a cyclone separator; dehumidifying the air discharged from the cyclone separator by means of a fluidized drying tower; and then the coating is completed. The closed large numerically controlled fluidized bed coating machine has a fluidized bed coating machine main tower, a cyclone separator, a fluidized drying tower, a blower, a heater, an air compressor, a coating liquid inlet system and a control system, and is characterized in that it has a closed air circulation system, and is provided with a dehumidifying mechanism and a water condensing mechanism for the fluidized drying tower. The present invention can reduce energy consumption, increase heating efficiency and has moisture-absorbing function; it can prevent the spray gun from blocking; it has the function of automatic feeding, which improves the efficiency of coating; therefore it is important for the achievement of a water-based coating process.
摘要翻译：公开了一种使用封闭的大型数控流化床制备具有水基涂层的控释肥料的方法及其装置：将具有合适颗粒尺寸的颗粒肥料收集到桶中; 通过负压将其吸入涂层腔中并制成相同的流体; 将水性涂布液引入喷枪中，然后在雾化后将液体喷洒到肥料颗粒表面上; 通过旋风分离器收集从涂层腔排出的空气中的杂质; 通过流化干燥塔对从旋风分离器排出的空气进行除湿; 然后涂层完成。封闭的大型数控流化床涂布机具有流化床涂布机主塔，旋风分离器，流化干燥塔，鼓风机，加热器，空气压缩机，涂布液入口系统和控制系统，其特征在于因为它具有封闭的空气循环系统，并且设置有用于流化干燥塔的除湿机构和水冷凝机构。本发明可以降低能耗，提高加热效率并具有吸湿功能; 可防止喷枪堵塞; 具有自动进料功能，提高了涂层效率; 因此，实现水性涂料工艺是重要的。

2. 发明申请

US20150210603A1 Method for Preparing Controlled Release Fertilizer with Water-Based Coating on the Basis of Closed Circulating Fluidized Bed, and Device therefor 审中-公开
标题翻译：基于封闭循环流化床的水性涂料控释肥料的制备方法及装置
公开(公告)号：US20150210603A1
公开(公告)日：2015-07-30
申请号：US14388817
申请日：2012-04-23
申请人： Changwen Du , Yazhen Shen , Jianmin Zhou
发明人： Changwen Du , Yazhen Shen , Jianmin Zhou
IPC分类号： C05G3/00 , B05B12/00 , B05B7/02
CPC分类号： C05G3/0029 , B05B7/02 , B05B12/004 , B05B13/00 , C05G3/0011 , Y02P20/123
摘要： Disclosed is a method for making a controlled release fertilizer with water-based coating using a closed large numerically controlled fluidized bed and a device therefor: collecting a granular fertilizer with a suitable granule size into a barrel; sucking the same into a coating cavity by negative pressure and making the same fluid; directing a water-based coating liquid into a spray gun, then spraying the liquid onto the surface of the fertilizer granules after nebulization; collecting the impurities in the air discharged from the coating cavity by means of a cyclone separator; dehumidifying the air discharged from the cyclone separator by means of a fluidized drying tower; and then the coating is completed. The closed large numerically controlled fluidized bed coating machine has a fluidized bed coating machine main tower, a cyclone separator, a fluidized drying tower, a blower, a heater, an air compressor, a coating liquid inlet system and a control system, and is characterized in that it has a closed air circulation system, and is provided with a dehumidifying mechanism and a water condensing mechanism for the fluidized drying tower. The present invention can reduce energy consumption, increase heating efficiency and has moisture-absorbing function; it can prevent the spray gun from blocking; it has the function of automatic feeding, which improves the efficiency of coating; therefore it is important for the achievement of a water-based coating process.
摘要翻译：公开了一种使用封闭的大型数控流化床制备具有水基涂层的控释肥料的方法及其装置：将具有合适颗粒尺寸的颗粒肥料收集到桶中; 通过负压将其吸入涂层腔中并制成相同的流体; 将水性涂布液引入喷枪中，然后在雾化后将液体喷洒到肥料颗粒表面上; 通过旋风分离器收集从涂层腔排出的空气中的杂质; 通过流化干燥塔对从旋风分离器排出的空气进行除湿; 然后涂层完成。封闭的大型数控流化床涂布机具有流化床涂布机主塔，旋风分离器，流化干燥塔，鼓风机，加热器，空气压缩机，涂布液入口系统和控制系统，其特征在于因为它具有封闭的空气循环系统，并且设置有用于流化干燥塔的除湿机构和水冷凝机构。本发明可以降低能耗，提高加热效率并具有吸湿功能; 可防止喷枪堵塞; 具有自动进料功能，提高了涂层效率; 因此，实现水性涂料工艺是重要的。

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