The invention discloses a drying method for extrusion granulation of kaolin, which belongs to the technical field of extrusion granulation of kaolin. The granulation drying method is as follows: the filter cake is extruded by a screw extruder to form a granular object, and the surface of the granular object is cylindrical granular. The length and diameter of the granular object are 1 cm and 0.5 cm. The granular object can be made into a product with 2% moisture content by air drying, and the drying time is 3 to 5 days. After granulation, the surface of the particles is cylindrical, the specific surface area is increased, and the stacking is loose, which is conducive to water discharge; the particles can be dried by air drying and belt dryer, with fast drying speed, convenient and accurate moisture control, and high output; there is no dust phenomenon in the production process. Small pollution, even in the open air, even if there is a small amount of dust pollution, it can be removed by adding vibration screen before the finished product; less equipment investment, easy operation, low energy consumption, energy saving and environmental protection.
【技术实现步骤摘要】
一种高岭土挤压造粒干燥方法
:本专利技术涉及一种高岭土挤压造粒干燥方法,属于高岭土挤压造粒
技术介绍
:目前,高岭土经精选之后处理方式有三种:压滤膏状滤饼、膏状滤饼晾晒打粉、干燥机直接干燥成干粉,普遍存在如下不足:①.膏状滤饼高岭土直接供应下游使用时,滤饼水分控制在32-36%,范围广,折干量计算不精确,制浆固含量难掌握,同时化浆分散困难;②.膏状滤饼晾晒打粉时受场地限制,易被污染,同时滤饼比表面积小,晾晒效率不高,后期打粉时易扬尘;
技术实现思路
:针对上述问题,本专利技术要解决的技术问题是提供一种高岭土挤压造粒干燥方法。本专利技术的高岭土挤压造粒干燥方法为:将滤饼经过螺旋挤压造粒机挤压,制成颗粒状物体,且颗粒状物体表面为圆柱形颗粒状,物体的长度为1厘米,直径为0.5厘米,颗粒状的物体再经过晾晒制成水分含量为2%的成品即可,晾晒时间为3-5天。作为优选,所述的滤饼为方形结构,上面四个角处分布有四个圆孔。本专利技术的有益效果:①.经过造粒,颗粒表面为圆柱形,比表面积增大,堆放疏松,有利于水分排出;②.颗粒可以采用晾晒和带式干燥机干燥,干燥速度快,水分控制方便、准确,产量高;③.生产过程不存在扬尘现象。受污染小,即使在露天场地晾晒,即使有少量沙尘污染,也可在成品前加用振动筛去除;④.设备投入少,操作方便,能耗低,节能环保;⑤.成品堆比重稳定,包装、运输方便;⑥.颗粒成品在下游使用投料方便,无扬尘,对投料员工和生产环境有效保护。附图说明图1为本专利技术中滤饼结构示意图;图2为本专利技术制备的圆柱形颗粒物的结构示意图。具体实施方式:本具体实施方式采用以下技 ...
【技术保护点】
1.一种高岭土挤压造粒干燥方法,其特征在于:所述的造粒干燥方法为:将滤饼经过螺旋挤压造粒机挤压,制成颗粒状物体,且颗粒状物体表面为圆柱形颗粒状,物体的长度为1厘米,直径为0.5厘米,颗粒状的物体再经过晾晒制成水分含量为2%的成品即可,晾晒时间为3‑5天。
【技术特征摘要】
1.一种高岭土挤压造粒干燥方法,其特征在于:所述的造粒干燥方法为:将滤饼经过螺旋挤压造粒机挤压,制成颗粒状物体,且颗粒状物体表面为圆柱形颗粒状,物体的长度为1厘米,直径为0.5厘米,颗...
【专利技术属性】
技术研发人员:吴土生,
申请(专利权)人:高州市恒和新材料有限公司,
类型:发明
国别省市:广东,44
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