问题 问答题 简答题

选煤厂工艺设备岗位皮带作业,皮带起车后现场应该检查哪些事项?

答案

参考答案:

要现场检查皮带是否有跑偏,拉线开关是否复位,皮带上、下表面、托辊和滚筒包胶是否完好,是否有妨碍皮带正常运行的因素存在,各润滑部位是否正常,如有应先期处理。

检查皮带上、下及周围是否有障碍物,皮带架下是否有落煤堆积情况,是否有其他工作人员在皮带机上、下及周围工作,冬季检查各转动部件有无冻结现象。

检查减速机油位是否在基准线以上,执行机构油位是否在上、下限之间,否则应通知机修工添加合适的油,并检查油管、油箱是否破裂漏油。

检查皮带溜槽是否有堵塞现象,堵溜槽开关是否灵活可靠,各溜槽闸板位置是否符合生产要求。

检查皮带松紧度是否正常,拉紧装置是否灵活,皮带清扫器磨损和松紧度是否情况良好,计量皮带秤称重托辊架周围是否清洁,如有煤块卡住秤架,应及时清除,确保称重准确。

检查挡煤皮及挡煤板是否完好,溜槽衬板是否有丢失及松动。

有CST的减速机,应检查CST各转动部件螺丝是否有缺失,CST的散热器是否可以正常工作,如有妨碍因素,应于先期处理。

阅读理解

阅读理解。

     Mrs Janes didn't have a husband, but she had two sons. They were big, strong boys, but they were

lazy (懒). On Saturdays they did not go to school, and then their mother always said, "Please cut the

grass in the garden this afternoon, boys, "The boys did not like it, but they always did it.

     Then somebody gave one of the boys a magazine, and he saw a picture of a beautiful lawn-mover

(割草机) in it. There was a seat on it and there was a woman on the seat.

     The boy took the picture to his mother and brother, and said to them, "Look, that woman's sitting on

the lawn-mover and driving it and cutting the grass, we want one of these."

     "One of these lawn-mover?" his mother asked.

     "No," the boy said, "We want one of those women. Then she can cut the grass every day."

1. Mrs Janes had _____.

A. a husband and two sons  

B. two big and busy sons

C. two sons, big, strong and laz y  

D. two strong but busy sons

2. Mrs Janes' sons _____.

A. cut the grass in the garden in the afternoon every day.  

B. cut the grass in the garden on Sundays.

C. cut the grass in the garden on Saturdays.  

D. liked to cut the grass in the garden.

3. What did somebody give one of Mrs Janes' sons?

A. A picture  

B. A magazine  

C. A lawn-mover    

D. A phone

4. Which of the following is true?

A. The two sons saw a woman driving a lawn-mover and cutting the grass in the garden.

B. One of the two sons saw a beautiful woman sitting on a lawn-mover.

C. One of the two sons liked the woman.

D. One of the two sons saw a picture of a lawn-mover in the magazine.

5. What did one of Mrs Janes' sons really want to have?

A. The woman driving the lawn-mover  

B. The magainze.

C. The lawn-mover        

D. The picture

单项选择题