问题 问答题 简答题

斗轮式取料机主要有哪几种取料工艺?

答案

参考答案:

斗轮式取料机主要有两种取料工艺:

(1)旋转分层取料工艺:旋转分层取料工艺可分为分段取料工艺和不分段取料工艺两种。分段取料就是根据要求将料场条形物料分成几段取完;不分段取料工艺亦称全层取料法,就是将分段取料工艺中的给定取料长度,变成整个料堆长,臂架旋转将整个料堆每层全部取完后再转向下一层,适用于较低较短的料堆。

(2)连续行走取料工艺:连续行走取料方式就是斗轮机在行走过程中进行取料,作业效果较好,取料量稳定,但连续行走功率消耗大,一般不采用,只适用于清理正常取料范围外的小料堆。

选择题
完形填空
An old man went to live with his son, daughter-in-law, and 4-year-old grandson. The old man’s hands    , his eyesight was not clear, and his    unsteady(不稳定的). The family were    every night at the dinner table. But the elderly grandfather’s shaky hands and     sight made this rather difficult. Peas rolled off his spoon onto the floor. When he grasped the glass,       would often spill(洒落)onto the tablecloth. “We must do something about grandfather,” said the husband.
So the husband and wife set a small table in the corner. There, grandfather ate    in the corner while the rest of the family enjoyed dinner at the dinner table.       grandfather had already broken a dish or two, his food was served in a    bowl. Sometimes, when the family      grandfather, he had a tear in his eye as he ate alone.      , the only words the couple had for him were sharp    when he dropped a fork or spilled food. The 4-year-old boy watched all this      .
One evening before supper, the father      his son playing with wood scraps(小块)on the floor. He asked the child sweetly: “What are you making?” Just as      , the boy answered: “Oh, I am making a little    for you and mama to eat your food from when I grow up.” The 4-year-old boy smiled and went back to      on it.
The words    the parents so much that they were    . Then tears started to stream down their cheeks.        no word was spoken, both knew what they had to do. That evening, the husband took grandfather’s hand and      led him back to the family table.
小题1:
A.woundedB.movedC.trembledD.dragged
小题2:
A.stepB.feetC.speechD.body
小题3:
A.awayB.togetherC.asleepD.apart
小题4:
A.losingB.failingC.disappearingD.rising
小题5:
A.foodB.panC.milkD.dinner
小题6:
A.aloneB.casuallyC.steadilyD.bitterly
小题7:
A.AfterB.SinceC.WhileD.When
小题8:
A.smallB.safeC.bigD.wooden
小题9:
A.glanced atB.stared atC.looked throughD.looked after
小题10:
A.HoweverB.OtherwiseC.StillD.Rather
小题11:
A.commentsB.quarrelsC.warningsD.remark
小题12:
A.in silenceB.in advanceC.in dangerD.in charge
小题13:
A.researchedB.noticedC.searchedD.explored
小题14:
A.firmlyB.suddenlyC.cruellyD.sweetly
小题15:
A.bowlB.cupC.spoonD.pan
小题16:
A.worshipB.workC.whisperD.weave
小题17:
A.impressedB.touchedC.confusedD.struck
小题18:
A.speechlessB.homelessC.fearlessD.hopeless
小题19:
A.OnceB.WhetherC.ThoughD.Unless
小题20:
A.gentlyB.happilyC.fluentlyD.fortunately