資源描述:
《斗式提升機外文翻譯》由會員上傳分享,免費在線閱讀,更多相關內(nèi)容在行業(yè)資料-天天文庫。
1、爆炸的斗式提升機的排氣摘要Thispaperisareportofanexperimentalprogrammeontheexplosionprotectionofbucketelevatorsbyventing.TheprojectwasacollaborativeeffortwithfundingbytheHealthandSafetyExecutiveandmanufacturersandusersofbucketelevatorsthroughtheBritishMaterialsHandlingBoard.Twobucketelevatorswer
2、eusedintheproject—asinglelegelevatorandatwin-legelevator.FourdustswereusedwithKStvaluesupto211barms?1anddustcloudswereproducedbydustinjectionandbynormaloperation.Reducedexplosionpressuresweremeasuredandguidancehasbeenderivedfromtheresults.Thisguidanceisintermsofventspacingasafuncti
3、onoftheKStvalueofthedust.本文通過通氣附在斗式提升機的防爆試驗計劃。該項目是一個共同的健康與安全執(zhí)行局和制造商和斗式提升機用戶的資金通過英國的材料處理板。兩斗式提升機中使用了一個單腿電梯和一雙腿電梯。四粉塵用該值高達211巴的?1和塵埃云被灰塵注射產(chǎn)生的正常運行。測定了降低爆炸壓力和指導已得出的結果。本指南是在噴口間距作為一個灰塵的KST值函數(shù)。Keywords關鍵詞:粉塵爆炸;發(fā)泄;斗式提升機Bucketelevatorsarewidelyusedinthehandlingoflargequantitiesofbulkpowders
4、andarenormallythepreferredmeansofconveyingwherelongverticalliftsarerequiredforfreeflowingpowders/granularproducts.Assuchtheyaretobefoundinnearlyallanimalfeedmills,bulkgrainstoresandmanyofthelargerinstallationshandlingpowdersinthefoodindustry.Powderorgranularproductsinevitablyspillf
5、romthebucketsduringoperationandfalldowntheuplegoftheelevator.Thefinermaterialislikelytoremaininsuspensionwhilethecoarsermaterialfallsbacktotheboot.Atthetopoftheelevatormostofthepowderwilldischargedowntheoff-takechute,butsomewillnormallybecarriedoverintothedownlegoftheelevator.Thusb
6、othlegsarelikelytocontainadustcloudofunknownconcentration,constantlyagitatedbythemovingbuckets,allthetimetheelevatorisinoperation.Varioussourcesofignitionareforeseeableinsuchunitsandexplosionincidentshavebeenreported.斗式提升機廣泛應用于大批量散裝粉末處理和通常是首選的方式輸送長垂直升降機是自由流動的粉末或顆粒的產(chǎn)品要求。這樣他們可以在幾乎所有的
7、動物飼料的米爾斯發(fā)現(xiàn),散裝谷物的商店和許多大型設備在食品工業(yè)中處理粉末。粉末或顆粒狀產(chǎn)品不可避免地灑在操作中的水桶和下降的電梯次上漲。較細的物料可能會保持在懸浮液中而較粗的物料落回啟動。在頂部的電梯的粉會放電下起飛溜槽,但一些通常會被帶到電梯的下跌。因此,兩條腿可能含有未知濃度的粉塵云,由移動不斷攪拌桶,所有電梯運行時間。各種來源的點火等單位和爆炸事件是可以預見的報道。Explosionventingisonemethodforexplosionprotectionofbucketelevators.ThecurrentInstitutionofChemic
8、alEngineersguidancerequire