问题 问答题 简答题

现场搅拌站有哪些设备?

答案

参考答案:

有装运提升部分、贮存部分、计量装置和搅拌部分。

(1)装运提升设备:

1)对于砂石有拉铲、抓斗、皮带运输机、铲车、装载机、应根据具体情况选定。

2)水泥,使用散装水泥时,用自动汽泵或空压机吹入水泥罐(仓)内,袋装水泥仍用人工装运堆放。

(2)贮存部分,有砂石贮料车、水泥贮罐。

(3)计量装置利用杠杆原理进行计量。杠杆一端为称量斗,另一端为平衡箱,平衡箱内的配量随称量要求而定。当进料达到设计数量时,称杠上升碰到行程开关即切断电源,同时关闭贮料斗门。砂、石、水泥分别计量,达到计量准确。

(4)搅拌部分搅拌机的规格和数量,可根据混凝土计划产量和进度要求,并结合设备条件的可能来确定,按搅拌站平面布置设置一台或数台,排成为一列式和放射式。为了充分发挥搅拌机效能,可采用双阶式工艺流程,即在出料口下设混凝土贮料斗。搅拌机上料斗沿轨道下滑,可用碰撞方法使计量斗门或汇总斗门自动打开,砂、石、水泥同时进入上料斗内。

填空题
完形填空
One day I visited an art museum while waiting for my husband to finish a business meeting . I was expecting a quiet   21  of the splendid artwork.
A young   22  viewing the paintings ahead of me   23  nonstop between themselves. I watched them a moment and decided the lady was doing all the talking. I admired the man’s
  24  for putting up with her  25  stream of words.  26  by their noise, I moved on.
I met them several times as I moved   27  the various rooms of art, Each time I heard her continuous flow of words, I moved away   28  .
I was standing at the counter of the museum gift shop making a   29  when the couple approached the   30  . Before they left, the man  31  into his pocket and pulled out a white object. He   32  it into a long sick and then  33  his way into the coatroom to get his wife’s jacket.
“He′s a   34  man.” The clerk at the counter said. “Most of us would give up if we were blinded at such a young age, During his recovery, he made a promise his life wouldn’t change. So, as before, he and his wife come in   35  there is a new art show.”
“But what does he get out of the art?”I asked .“He can’t see.”
“Can’t see? You’re   36  . He sees a lot, More than you and I do,” the clerk said, “His wife  37  each painting so he can see it in his head.”
I learned something about patience,  38  and love that day. I saw the patience of a young wife describing paintings to a person without   39  and the courage of a husband who would not   40  blindness to change his life. And I saw the love shared by two people as I watched this couple walk away, their arms intertwined.
小题1:
A.viewB.touchC.wanderD.scenery
小题2:
A.ladyB.manC.coupleD.clerk
小题3:
A.yelledB.arguedC.screamedD.chatted
小题4:
A.attemptB.patienceC.wisdomD.independence
小题5:
A.vividB.constantC.casualD.exciting
小题6:
A.AdoptedB.AdaptedC.ConductedD.Disturbed
小题7:
A.towardsB.toC.throughD.from
小题8:
A.anxiouslyB.slowlyC.quicklyD.sensibly
小题9:
A.commentB.decisionC.purchaseD.profit
小题10:
A.entranceB.queueC.frontD.exit
小题11:
A.pluggedB.reachedC.heldD.bent
小题12:
A.lengthenedB.madeC.broughtD.broadened
小题13:
A.ledB.foundC.forcedD.tapped
小题14:
A.braveB.roughC.smartD.generous
小题15:
A.whereverB.whateverC.wheneverD.whichever
小题16:
A.wrongB.sillyC.equalD.unique
小题17:
A.describesB.drawsC.showsD.decorates
小题18:
A.kindnessB.courageC.enthusiasmD.pride
小题19:
A.supportB.expectationC.sightD.confidence
小题20:
A.allowB.hopeC.getD.Cause