Workstation Design Improvements for the Reduction of Dust Exposures During Weighing of Chemical Powders

M. Gressel, T. Fischbach
{"title":"Workstation Design Improvements for the Reduction of Dust Exposures During Weighing of Chemical Powders","authors":"M. Gressel, T. Fischbach","doi":"10.1080/08828032.1989.10388568","DOIUrl":null,"url":null,"abstract":"Abstract Ventilated booth workstations often do not provide complete dust control during the manual transfer and weigh out of chemical powders. In a typical process, a worker removes powder from the bulk material drum with a scoop, weighs the powder into a paper bag, and then places the full bag into a second drum. A previous study identified points of exposure in a ventilated weigh-out operation at a plastics manufacturing plant. Eddies in front of the worker and inside the weigh-out drum hindered dust control. The depth of the powder in the weigh-out drum also contributed to increased exposures. This follow-up study sought to apply and evaluate three different control modifications of the weigh-out station. The first control was the modification of the worktable to streamline the process. The second control was a local exhaust hood placed at the lip of the bulk material drum. This hood controlled the eddy in the bulk material drum. The last control was an air shower, i.e., a low-velocity, fresh air supp...","PeriodicalId":8049,"journal":{"name":"Applied Industrial Hygiene","volume":"48 1","pages":"227-233"},"PeriodicalIF":0.0000,"publicationDate":"1989-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Industrial Hygiene","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/08828032.1989.10388568","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8

Abstract

Abstract Ventilated booth workstations often do not provide complete dust control during the manual transfer and weigh out of chemical powders. In a typical process, a worker removes powder from the bulk material drum with a scoop, weighs the powder into a paper bag, and then places the full bag into a second drum. A previous study identified points of exposure in a ventilated weigh-out operation at a plastics manufacturing plant. Eddies in front of the worker and inside the weigh-out drum hindered dust control. The depth of the powder in the weigh-out drum also contributed to increased exposures. This follow-up study sought to apply and evaluate three different control modifications of the weigh-out station. The first control was the modification of the worktable to streamline the process. The second control was a local exhaust hood placed at the lip of the bulk material drum. This hood controlled the eddy in the bulk material drum. The last control was an air shower, i.e., a low-velocity, fresh air supp...
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
工作站设计的改进,以减少粉尘暴露在称重期间的化学粉末
通风工位工作站在人工输送和称量化学粉末过程中往往不提供完全的粉尘控制。在一个典型的过程中,工人用勺子从散装物料桶中取出粉末,将粉末称重放入纸袋中,然后将整个袋子放入第二个桶中。先前的一项研究确定了一家塑料制造厂通风称重操作中的暴露点。工人前方和称重滚筒内部的涡流阻碍了粉尘的控制。称量筒内粉末的深度也增加了曝光量。这项后续研究试图应用和评估称重站的三种不同的控制修改。第一个控制是工作台的修改,以简化过程。第二个控制是放置在散装物料桶唇的局部排气罩。这个罩控制了散装物料桶内的涡流。最后一个控制是空气淋室,即低速新鲜空气供应。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Asbestos—Analytical Techniques Exposures to Extremely Low Frequency (ELF) Electromagnetic Fields in Occupations with Elevated Leukemia Rates Focus on …: Air Sampling: Sampling and Analysis of Air Contaminants: An Overview Major Accomplishments in Occupational Health in the past Fifty Years Air Sampling Instruments
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1