中华劳动卫生职业病杂志
中華勞動衛生職業病雜誌
중화노동위생직업병잡지
CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES
2012年
11期
845-848
,共4页
王德军%隋少峰%孔凡玲%黄东海
王德軍%隋少峰%孔凡玲%黃東海
왕덕군%수소봉%공범령%황동해
硅酸盐类%粉尘%职业暴露%干预性研究
硅痠鹽類%粉塵%職業暴露%榦預性研究
규산염류%분진%직업폭로%간예성연구
Silicates%Dust%Occupational exposure%Intervention studies
目的 了解新型干法水泥生产线粉尘职业暴露水平,提出整改治理措施,为现代水泥生产企业的粉尘治理及职业卫生管理提供思路.方法 采用职业卫生现场调查和现场检测相结合的方法,测定工作场所粉尘时间加权平均浓度(CTWA),对粉尘浓度不合格的作业岗位进行整改治理,评估整改粉尘作业场所防尘设施的防护效果.结果 现场调查发现,整改前某新型干法水泥生产线粉尘作业岗位存在防尘设施密闭不严、吸尘罩设置不当、漏尘点过多等不足,其防尘设施难以起到有效的除尘效果.经现场检测,绝大多数作业岗位粉尘浓度超标,岗位合格率仅为31.8％.采取一系列整改治理措施,整改后粉尘作业岗位的CTWA较整改前大幅下降,作业岗位粉尘浓度合格率上升为90.9％.结论 新型干法水泥生产作业的粉尘危害不容忽视.采取适当的卫生工程防护措施是遏止现代水泥生产作业粉尘危害的关键.
目的 瞭解新型榦法水泥生產線粉塵職業暴露水平,提齣整改治理措施,為現代水泥生產企業的粉塵治理及職業衛生管理提供思路.方法 採用職業衛生現場調查和現場檢測相結閤的方法,測定工作場所粉塵時間加權平均濃度(CTWA),對粉塵濃度不閤格的作業崗位進行整改治理,評估整改粉塵作業場所防塵設施的防護效果.結果 現場調查髮現,整改前某新型榦法水泥生產線粉塵作業崗位存在防塵設施密閉不嚴、吸塵罩設置不噹、漏塵點過多等不足,其防塵設施難以起到有效的除塵效果.經現場檢測,絕大多數作業崗位粉塵濃度超標,崗位閤格率僅為31.8％.採取一繫列整改治理措施,整改後粉塵作業崗位的CTWA較整改前大幅下降,作業崗位粉塵濃度閤格率上升為90.9％.結論 新型榦法水泥生產作業的粉塵危害不容忽視.採取適噹的衛生工程防護措施是遏止現代水泥生產作業粉塵危害的關鍵.
목적 료해신형간법수니생산선분진직업폭로수평,제출정개치리조시,위현대수니생산기업적분진치리급직업위생관리제공사로.방법 채용직업위생현장조사화현장검측상결합적방법,측정공작장소분진시간가권평균농도(CTWA),대분진농도불합격적작업강위진행정개치리,평고정개분진작업장소방진설시적방호효과.결과 현장조사발현,정개전모신형간법수니생산선분진작업강위존재방진설시밀폐불엄、흡진조설치불당、루진점과다등불족,기방진설시난이기도유효적제진효과.경현장검측,절대다수작업강위분진농도초표,강위합격솔부위31.8％.채취일계렬정개치리조시,정개후분진작업강위적CTWA교정개전대폭하강,작업강위분진농도합격솔상승위90.9％.결론 신형간법수니생산작업적분진위해불용홀시.채취괄당적위생공정방호조시시알지현대수니생산작업분진위해적관건.
Objective To investigate the occupational exposure levels of dust in new suspension preheater dry process (NSP) cement production line and put forward rectification measures for dust-exposed posts,and to provide ideas for the modern cement production enterprises in dust control and occupational health management.Methods Occupational health field investigation combined with field test were used to measure the time-weighted average concentration (CTWA) of the dust in the workplace.Rectification measures were taken for the dust-exposed posts with unqualified dust concentration,and the protective effects of dustproof facilities in the rectified workplace were evaluated.Results The field investigation revealed incompletely closed dustproof facilities,improperly set dust hoods,excess of dust leakage points,and other problems in the dust-exposed posts of an NSP cement production line before rectification,and the dustproof facilities could hardly exert dust removal effect.The field test showed that the vast majority of dust-exposed posts had the dust concentrations exceeding the occupational exposure limits (OELs),with a qualified rate as low as 31.8％.A series of rectification measures were taken for these posts.After the rectification,the dust-exposed posts demonstrated dramatically dropped CTWA,and the qualified rate of dust concentration in the dust-exposed posts rose to 90.9％.Conclusion The dust hazards in NSP cement production line cannot be ignored.Taking appropriate protective measures are critical for curbing dust hazards in modern cement production.
