适当过滤的操作室Employeeeducation员工教育-OHLearning.ppt

PracticalApplicationsofControlStrategies控制措施应用实例TopicstobeDiscussed讨论内容Additionofhydratedlimetocyanidetanks 向***化物提取罐添加熟石灰Respirablesilicaduringsandblasting 喷砂处理产生的呼吸性矽尘Ventilationinalaboratorysampleroom 实验室样品间的排风系统Mercuryexposureinagoldroom炼金室的水银污染Manufactureofphthalicanhydride生产邻苯二甲酸酐Controlofpowdersinthepharmaceuticalindustry 制药业对粉末的控制Dieselparticulateinundergroundcoalmines 地下煤矿的柴油微粒AdditionofHydratedLimetoCyanideTanks向***化物提取罐添加熟石灰Atacarbon‑pulpgoldprocessingplantinEquatorialAfrica,theneedarosetomakeroutineadditionsofhydratedlime(Ca(OH)2)tothecyanideextractiontanksinordertocontrolpH一家位于赤道非洲使用含碳矿浆法的炼金厂,需要向***化物提取罐中例行添加熟石灰(Ca(OH)2)以控制罐内pH值Todothisthemilldecidedtousebulkhydratedlimedeliveredtothesitein1000 kgbulkbagssoastominimisetransportationcosts 为此,该厂决定使用散装的熟石灰,为了最大限度地降低成本,这些熟石灰装在1000公斤一个的集装袋中运往工地AdditionofHydratedLime添加熟石灰ThepHinthetankswasmonitoredandwhenrequireda1000 kgbagwasliftedbycraneaboveachutewhichhadaninternalspeartopiercethebagandreleasethehydratedlimetothecyanidemixingtanksbelow 提取罐内的pH值是受到监控的,必要时起重机会将1000公斤的单个熟石灰袋吊至溜槽上,用该溜槽上自带的锥刺破外袋,并向下方的***化物混合罐中倾倒熟石灰Thisprocessgeneratedsignificantlevelsofdust 这一过程会产生大量的粉尘ProcessofAddingHydratedLime熟石灰的添加过程Source:UniversityofWollongongPropertiesofHydratedLime熟石灰的属性ReferencetotheproductMSDSindicatedthatthematerialwascorrosivebyinhalation,ingestion,skinandeyes 据材料安全数据表(MSCS)显示,熟石灰对呼吸道、消化道、皮肤和眼部都有腐蚀作用Inhalationwouldresultinseveremucousmembraneirritationofthenoseandthroatandprolongedandrepeatedcontactwiththeskinwouldresultinasevereskinrash,dermatitisandpossiblechemicalulceration 人体吸入熟石灰会导致严重的鼻、喉部的粘膜产生强烈的刺痛感,而皮肤长期不断地同熟石灰接触会引发严重皮疹、各种皮肤病,甚至有可能化学性溃烂。InitialIssuesmenced,operatorsexperiencedrespiratoryirritationandduetothehothumidequatorialclimate,severeskinirritationandinonecase,ulceration 这一过程一开始,操作员就得承受呼吸道不适再加上炙热的赤道气候对皮肤的刺激,甚至还出现过一例皮肤溃烂。InitialControlMeasures初级控制措施Theresponseofthemillmanager(anexpatriatefromNorthAmerica)wastosupplyrespiratoryprotectionandimperviousraincoatssothattheproductdidn’tcontacttheskin 当时,炼金厂经理(一位北非