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1、精品好文档,推荐学习交流一、重介选煤工艺流程图给煤机皮带机1破碎机皮带机2三产品重介质旋流器授煤坑或缓冲仓精煤脱介筛中煤矸石离心机1精煤皮带离心液精煤场精磁尾桶磁尾泵高频筛离心机2浮选机浮精池渣浆泵压滤机浓缩池渣浆泵压滤机煤泥皮带煤泥场合介桶磁选机1脱介筛中煤皮带矸石皮带磁选机2中矸旋流器高频筛合格介质泵循环池供筛子及磁选机喷水标注:实线表示煤的流向,虚线表示介质液的流向,点实线表示水的流向。仅供学习与交流,如有侵权请联系网站删除谢谢4精品好文档,推荐学习交流二、跳汰选煤工艺流程图(市场普遍使用)精煤皮带1精煤皮带3精煤堆场离心机离心筛精煤中煤矸石
2、中煤斗提机矸石斗提机矸石堆场中煤堆场浓缩池压滤机煤泥皮带煤泥堆场精煤弧形筛直线筛块煤分级筛筛下水池筛下水泵悬流器组末煤筛浮选机末精煤池精煤皮带2压滤机浮精皮带循环池煤泥泵给煤机皮带机1破碎机皮带机2三产品跳汰机授煤坑或缓冲仓罗茨风机空压机(筛下物)(筛上物)(筛下物)块煤皮带筛(底流)(›1cm精煤)(筛下物)(溢流)(0.5mm~1cm精煤)渣浆泵(溢流)(离心液)(0.3mm~0.5mm精煤)(底流)(0mm~0.3mm精煤)(筛下物)(溢流)标注:实线表示煤的流向,虚线表示煤泥水的流向,点实线表示水的流向。九年级英语期中考试卷第二部分笔试部分
3、二、单项填空(本题有15小题,每小题1分,共15分)仅供学习与交流,如有侵权请联系网站删除谢谢4精品好文档,推荐学习交流16.---Howdoyoustudyatest?---Istudyworkingagroup.A.for,in,withB.for,by,atC.for,by,withD.of,in,by17. ---Hey!Don’tyourememberme?---Wow!Paula?Youusedto________curlyhair.A.beB.areC.haveD.has18. Sixteen-years-olds shouldn’t
4、 ______ to go to an Internet bar.
A. be allowed B. be allowC. allow D. are allowed19. -–Doyoufeeltired?---No,Idon’t.IfIweretired,I______arest.AhadBwouldhaveCwillhaveDhave20. ---Tom,whereisyourfather?
---I’mnotsure.He_______inhisoffice.
A.is B.mayb
5、e C.maybe D.may21. Idon’tlikepeople______talkmuchbutdolittle.A.whoB.thatC.whichD.whose22. ---Wherewouldyouliketogo?
---I’dliketogo________.A.warmsomewhere B.placewarm C.somewherewarm D.warmplace23. ---Youlookso,don'tyou?---Yes,I'vegotabirthdaypresent.A.sadB.happyC.tiredD.wo
6、rried24.---Mom,________is my MP4? ---I put it in your backpack. A. what B. how C. whose D. where25.---I’mnothungrybutthirsty.---________A.I’mhungry,too.B.Whataboutsomecakes?C.I’mhappytohearthat.D.Howaboutaglassofwater?26. —________areyo
7、utalkingabout?—TheOlympicGamesinBeijing.A.WhatB.WhomC.HowD.Where27. ---Whynotcomeandjoinusinthegame?---_______.ButImustmeetMrSmithathisofficenow..A.I’dliketo.B.Let’sgoC.Yes,pleaseD.No,problem.28. —Myclockdoesn’t.—Letmehavealook.MaybeIcanhelpyou.A.workB.stopC.openD.answer仅供学习与交
8、流,如有侵权请联系网站删除谢谢4精品好文档,推荐学习交流29.—WecanuseQQtotalkwitheachother