CN102848487B - 一种胶木粉热态制粒方法及其设备 - Google Patents

一种胶木粉热态制粒方法及其设备 Download PDF

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CN102848487B
CN102848487B CN201210354714.3A CN201210354714A CN102848487B CN 102848487 B CN102848487 B CN 102848487B CN 201210354714 A CN201210354714 A CN 201210354714A CN 102848487 B CN102848487 B CN 102848487B
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granulation
bakelite powder
extruser
hot melt
melt state
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CN102848487A (zh
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王雪鸿
王俊
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Hang Mo New Material Group Co., Ltd.
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ZHEJIANG HANGMO SYNTHETIC MATERIAL CO Ltd
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Abstract

本发明涉及一种将胶木粉在热熔状态制成颗粒体的方法及其设备。一种胶木粉热态制粒方法,包括将胶木粉加热呈熔融凝块状,将所述呈熔融凝块状的胶木粉加入螺旋挤出机挤出成细条并切割成颗粒,冷却后得颗粒产品。胶木粉热态挤出造粒方法,实现了一次成型,颗粒十分均匀,无需筛分;风流快速冷却,成品质量好,生产效率高。彻底改变了传统的先将胶木粉融熔固化再粉碎、筛分的低效率、高粉尘环境污染的落后的冷态造粒方法。

Description

一种胶木粉热态制粒方法及其设备
技术领域
本发明涉及一种将胶木粉在热熔状态制成颗粒体的方法及其设备。
背景技术
   胶木又称电木,是以木粉为填料的酚醛塑料,广泛用于制作电器、仪表的绝缘机构件。胶木制品的传统生产方法是用胶木粉模压而成,而现在较先进的生产方法,是将胶木粉造粒后通过注塑机注射成型。但目前胶木粉造粒均为冷态造粒法,即先将胶木粉热熔制成片块状,待冷却后破碎或用刀切成小颗粒,然后经筛分得到8~60目的注射颗粒。在上述生产过程中,约有30%的粒料不符合注射粒料规格而被废弃作为回料,因此,冷造粒法生产效率低,能耗大,成本高。
发明内容
本发明的目的是提供一种造粒规范均匀而高效的胶木粉热态制粒方法及其设备。
一种胶木粉热态制粒方法,包括将胶木粉加热呈熔融凝块状,将所述呈熔融凝块状的胶木粉加入螺旋挤出机挤出成细条并切割成颗粒,冷却后得颗粒产品。
作为优选,所述螺旋挤出机挤出口,胶木粉凝块细条即被旋切刀片切成颗粒体。
作为优选,所述螺旋挤出机挤出口的挤出细条即被旋切成颗粒体后,由压缩空气吹向颗粒体,使其悬浮、分散、冷却。
上述方法的胶木粉热态造粒设备,具有造粒罐和螺旋挤出机,所述螺旋挤出机的挤出端伸入所述造粒罐中,所述螺旋挤出机的螺旋叶传动轴的端部伸出挤出机挤出端面并安装有径向旋切刀,该径向旋切刀贴近所述的挤出端面,在所述造粒罐内下部安装有针对着挤出机挤出端口的压缩空气喷头。
作为优选,所述挤出端伸入造粒罐中的螺旋挤出机向下倾斜安装,其中心轴线与水平线呈夹角Φ。
作为优选,所述夹角Φ为30°~60°。
作为优选,所述压缩空气喷头的朝向与所述螺旋挤出机的中心轴线相垂直。
作为优选,所述造粒罐内上出风口处设有网孔挡料板。
本发明的有益效果是:胶木粉热态挤出造粒方法,实现了一次成型,颗粒十分均匀,无需筛分;风流快速冷却,成品质量好,生产效率高。彻底改变了传统的先将胶木粉融熔固化再粉碎、筛分的低效率、高粉尘环境污染的落后的冷态造粒方法。其生产设备结构简单,可连续化且封闭式,操作方便、可靠,环境污染少。
附图说明
图1是本发明的总体结构示意图;
图2是本发明的螺杆挤出机的端面视图;
图中,1是造粒罐,2是挡料板,3是压缩空气喷头,4是压缩空气接口管,5是出料管,6是排风管,7是螺旋挤出机,71是螺旋叶传动轴,72是螺旋叶,73是挤出机挤出端面,74是径向旋切刀,75是挤出孔。
具体实施方式
以下结合附图对本发明做进一步的解释。
本具体实施方式是对本发明的解释,并不是对本发明的限制。本领域技术人员在阅读了本发明的说明书后,所做的任何改进和修改,只要在本申请文件的权利要求书范围之内,都将受到法律的保护。
一种胶木粉热态制粒方法,包括将胶木粉加热呈熔融凝块状,其特征在于将所述呈熔融凝块状的胶木粉加入螺旋挤出机挤出成细条并切割成颗粒,冷却后得颗粒产品;所述螺旋挤出机挤出口,胶木粉凝块细条即被旋切刀片切成颗粒体;所述螺旋挤出机挤出口的挤出细条即被旋切成颗粒体后,由压缩空气吹向颗粒体,使其悬浮、分散、冷却。
一种应用于上述胶木粉热态制粒方法的胶木粉热态造粒设备,由造粒罐1和螺旋挤出机7组成。螺旋挤出机7包括螺旋叶传动轴71、螺旋叶72、挤出端面73、径向旋切刀74,径向端上设有挤出孔75。造粒罐1内部设有网孔挡料板2、压缩空气喷头3。
螺旋挤出机7的挤出端伸入所述造粒罐中。螺旋叶传动轴71的端部伸出挤出机挤出端面73并安装有径向旋切刀74,该径向旋切刀74贴近所述的挤出端面73。
网孔挡料板2设在造粒罐1内上出风口处,在所述造粒罐1内下部安装有针对着挤出机挤出端口的压缩空气喷头3,挤出端伸入造粒罐中的螺旋挤出机7向下倾斜安装,其中心轴线与水平线呈夹角30°。所述压缩空气喷头3的朝向与所述螺旋挤出机7的中心轴线相垂直。

Claims (2)

1.一种胶木粉热态造粒设备,其特征在于具有造粒罐(1)和螺旋挤出机(7),所述螺旋挤出机(7)的挤出端伸入所述造粒罐中,所述螺旋挤出机(7)的螺旋叶传动轴(71)的端部伸出挤出机挤出端面(73)并安装有径向旋切刀(74),该径向旋切刀(74)贴近所述的挤出端面(73),在所述造粒罐(1)内下部安装有针对着挤出机挤出端口的压缩空气喷头(3);所述挤出端伸入造粒罐中的螺旋挤出机(7)向下倾斜安装,其中心轴线与水平线呈夹角Φ;所述夹角Φ为30°~60°;所述压缩空气喷头(3)的朝向与所述螺旋挤出机(7)的中心轴线相垂直。
2.根据权利要求1所述的胶木粉热态造粒设备,其特征在于所述造粒罐(1)内上出风口处设有网孔挡料板(2)。
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