CN202986059U - 一种用于聚苯乙烯片材的挤出机低聚物废气处理装置 - Google Patents

一种用于聚苯乙烯片材的挤出机低聚物废气处理装置 Download PDF

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CN202986059U
CN202986059U CN201220695627XU CN201220695627U CN202986059U CN 202986059 U CN202986059 U CN 202986059U CN 201220695627X U CN201220695627X U CN 201220695627XU CN 201220695627 U CN201220695627 U CN 201220695627U CN 202986059 U CN202986059 U CN 202986059U
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oligomer
extruder
vavuum pump
buffer barrel
treatment device
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万伏业
吴加力
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SHANGHAI LUOXING PACKING CO Ltd
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SHANGHAI LUOXING PACKING CO Ltd
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Abstract

本实用新型涉及机械技术领域,具体地说是一种用于聚苯乙烯片材的挤出机低聚物废气处理装置。一种用于聚苯乙烯片材的挤出机低聚物废气处理装置,包括挤出机、低聚物缓冲桶、真空泵、气水分离器,其特征在于:挤出机的排气口通过联接管道连接低聚物缓冲桶,低聚物缓冲桶通过球阀及止回阀连接1号真空泵的一端,1号真空泵的另一端连接气水分离器。同现有技术相比,气流在真空桶内缓冲一次,由于压力的变化,部分气态低聚物会重新凝结,落在缓冲桶底部,从而减少带进真空泵的低聚物量,两台真空泵并联联接进系统,一台运行、一台备用,一旦运行的真空泵出现异常状态,就切换管道上的阀门、启动另一台真空泵,可以确保挤出机持续运行,检修方便。

Description

一种用于聚苯乙烯片材的挤出机低聚物废气处理装置
技术领域
本实用新型涉及机械技术领域,具体地说是一种用于聚苯乙烯片材的挤出机低聚物废气处理装置。
背景技术
由于树脂在挤出机内的加工过程中,低聚物容易降解、气化,因此需要配有一套排气装置。主要作用是对将低聚物废气从挤出机内吸出来,无害化处理后排放出去。目前国内大多数抽真空排气装置的主要原理是:在挤出机的排气口,安装一个真空泵,废气经由真空泵直接排出。在挤出机开开停停、或开停损失不大的工况下,采用这种简单的排气方法是可以的。但如果挤出机长时间运行后,真空泵内的低聚物越聚越多,严重时会影响吸气效果。这时就要停机、拆卸并清洗真空泵。直接影响公司的生产效率。
发明内容
本实用新型为克服现有技术的不足,提供一种运行稳定、抽真空彻底、运行平稳、可长时间连续运转的一种废气处理装置。
为实现上述目的,设计一种用于聚苯乙烯片材的挤出机低聚物废气处理装置,包括挤出机、低聚物缓冲桶、真空泵、气水分离器,其特征在于:挤出机的排气口通过联接管道连接低聚物缓冲桶,低聚物缓冲桶通过球阀及止回阀连接1号真空泵的一端,1号真空泵的另一端连接气水分离器。
所述的低聚物缓冲桶与气水分离器之间设有2号真空泵。
所述的低聚物缓冲桶的上端设有真空压力表,低聚物缓冲桶的下端设有排污口。
所述的气水分离器的上端设有排气口,气水分离器的下端设有排水口。
所述的1号真空泵及2号真空泵的末端连接自来水管。
本实用新型同现有技术相比,气流在真空桶内缓冲一次,由于压力的变化,部分气态低聚物会重新凝结,落在缓冲桶底部,从而减少带进真空泵的低聚物量。两台真空泵并联联接进系统,一台运行、一台备用,一旦运行的真空泵出现异常状态,就切换管道上的阀门、启动另一台真空泵。可以确保挤出机持续运行。检修方便。
附图说明
图1为本实用新型结构示意图。
参见图1,1为挤出机,2为联接管道,3为真空压力表,4为球阀,5为止回阀,6为低聚物缓冲桶,7为排污口,8为1号真空泵,9为2号真空泵,10为气水分离器,11为排气口,12为排水口,13为自来水管。
具体实施方式
下面根据附图对本实用新型做进一步的说明。
如图1所示,挤出机1的排气口通过联接管道2连接低聚物缓冲桶6,低聚物缓冲桶6通过球阀4及止回阀5连接1号真空泵8的一端,1号真空泵8的另一端连接气水分离器10。
低聚物缓冲桶6与气水分离器10之间设有2号真空泵9。
低聚物缓冲桶6的上端设有真空压力表3,低聚物缓冲桶6的下端设有排污口7。
气水分离器10的上端设有排气口11,气水分离器10的下端设有排水口12。
1号真空泵8及2号真空泵9的末端连接自来水管13。
真空压力表3安装在低聚物缓冲桶6上,用于显示系统内真空度;两台真空泵并联,泵的入口接入真空桶,泵的出口接入气水分离器10。
挤出机1内的低聚物气流被吸入低聚物缓冲桶6后,由于压力的变化,部分气态的物质转变为液态,初步沉淀在缓冲桶内;真空泵的吸入口接在低聚物缓冲桶6的顶部,不会将桶内的沉淀物吸进真空泵,从而延长真空泵连续工作时间;另外,两台真空泵并联设置,一备一用,当发现工作的真空泵有堵塞现象时,马上切换到备用泵,可保证挤出机不用停机。切换下来的真空泵,关闭进口、出口阀门后,可以进行单独检修、保养。

Claims (5)

1.一种用于聚苯乙烯片材的挤出机低聚物废气处理装置,包括挤出机、低聚物缓冲桶、真空泵、气水分离器,其特征在于:挤出机(1)的排气口通过联接管道(2)连接低聚物缓冲桶(6),低聚物缓冲桶(6)通过球阀(4)及止回阀(5)连接1号真空泵(8)的一端,1号真空泵(8)的另一端连接气水分离器(10)。
2.根据权利要求1所述的一种用于聚苯乙烯片材的挤出机低聚物废气处理装置,其特征在于:所述的低聚物缓冲桶(6)与气水分离器(10)之间设有2号真空泵(9)。
3.根据权利要求1所述的一种用于聚苯乙烯片材的挤出机低聚物废气处理装置,其特征在于:所述的低聚物缓冲桶(6)的上端设有真空压力表(3),低聚物缓冲桶(6)的下端设有排污口(7)。
4.根据权利要求1所述的一种用于聚苯乙烯片材的挤出机低聚物废气处理装置,其特征在于:所述的气水分离器(10)的上端设有排气口(11),气水分离器(10)的下端设有排水口(12)。
5.根据权利要求1或2所述的一种用于聚苯乙烯片材的挤出机低聚物废气处理装置,其特征在于:所述的1号真空泵(8)及2号真空泵(9)的末端连接自来水管(13)。
CN201220695627XU 2012-12-14 2012-12-14 一种用于聚苯乙烯片材的挤出机低聚物废气处理装置 Expired - Fee Related CN202986059U (zh)

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