问题 问答题 简答题

综放工作面放顶煤时要遵守哪些规定?

答案

参考答案:

⑴放煤前要认真检查放煤机构、液压元件、放煤口喷雾装置是否完好,后部过煤空间是否符合要求。发现问题及时汇报处理。

⑵必须及时清理架间和架后浮煤,确保放煤口放煤情况清晰可见。

⑶严格按照作业规程规定的放煤步距、放煤顺序等放煤工艺要求操作。

⑷当大块煤堵住放煤口时,可反复活动尾梁,必要时可用插板插碎。严禁采用爆破的方法处理大块煤、矸。

⑸放煤位置距移架位置不得超过作业规程规定,不得移架后立即放煤。

⑹工作面后部刮板输送机停止运转时严禁放煤。

⑺放煤时必须及时打开喷雾装置喷雾降尘。

⑻放煤结束后,必须把支架尾架升起,将插板伸出,并将放煤阀组拨回到“零”位,关闭喷雾装置。

单项选择题
完形填空
It was just getting dark. There was a touch of fog and I was on a lonely stretch of road.   36 I was going along cheerfully, thinking about the dinner I would eat when I got to Salistury .
I was going along   37 at about thirty-five miles an hour when suddenly I heard a scream, a  38 scream--- “ Help! ” I looked round, but the only   39 of life was a large, black, rather suspicious--looking(可疑的)car just   40  a bend in the road about a hundred yards away. That was where the cry had come from. I   41  speed and went after it. I think the driver saw what I was doing, for he did the same and began to draw   42  me. As I drew near, the girl’s voice came again, a lovely voice but trembling with   43  .
“Let me go, you coward; you’re hurting me. Oh ! Oh ! ”
I felt my   44  boil. The fog was coming down   45  now, and the countryside was lonelier. I had no  46 that the murderous guy in the car noticed this. Again came a cry.
“Drop that knife, you fool. Oh ! ” Then a cry and a groan(呻吟).
If I was to save her, it was now or   47 . Perhaps even now I was too late. But if I couldn’t save the girl, I would at least try to bring the murderer to   48 . The car was only a couple of yards away now. I drove the bike right across its   49 , and its brakes(刹车)screamed as the driver tried to pull it over and  50  into the ditch(沟)at the side of the road. The door of the car was pushed open angrily and a dark, evil-looking fellow stepped out .
“You fool!” he shouted as he came towards me with his fist raised to hit me. But I was   51   than he. I put all I could into   52  that would have knocked out Joe Louis. It   53  him right on the point of the chin; his   54  slowly bent under him, and he dropped to the ground without a sound. I rushed to the car,   55  open the door and looked inside. There was no girl there. Suddenly from the back of the car came a voice.
“You have been listening to a radio play, Murder in Hollywood, with Mae Garbo and Clark Taylor. The news will follow immediately . ”
小题1:
A.AndB.ThoughC.ThereforeD.But
小题2:
A.quietlyB.quicklyC.carefullyD.nervously
小题3:
A.boy’sB.man’sC.woman’sD.driver’s
小题4:
A.personB.signC.soundD.form
小题5:
A.turningB.crossingC.goingD.driving
小题6:
A.slowed down B.put onC.added toD.took up
小题7:
A.right behindB.close toC.away fromD.near by
小题8:
A.joyB.sorrowC.fearD.anger
小题9:
A.tearsB.heartC.faceD.blood
小题10:
A.slighterB.thickerC.lowerD.harder
小题11:
A.needB.effortC.troubleD.doubt
小题12:
A.neverB.lateC.everD.then
小题13:
A.justiceB.courtC.lawyerD.sentence
小题14:
A.directionB.pathC.frontD.nose
小题15:
A.droveB.ranC.crashedD.sped
小题16:
A.slowerB.quickerC.tallerD.heavier
小题17:
A.an angerB.a fistC.a beatD.a blow
小题18:
A.caughtB.struckC.knockedD.beat
小题19:
A.chinB.fistsC.kneesD.body
小题20:
A.hitB.broughtC.pushedD.pulled