碎煤机运行中的注意事项是什么？_爱下问搜题

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问题问答题简答题

碎煤机运行中的注意事项是什么？

答案

参考答案：

（1）电动机外壳，碎煤机轴承温度不应超过80℃；（2）紧固连接螺栓应无松动，电动机和碎煤机机体无剧烈振动和异间；（3）碎煤机振动值应在0.18mm以下，窜动在0.5mm以下；（4）环式碎煤机出料粒度≤20mm；（5）运行中若发现异常情况，危及人身和设备安全时，应紧急停止碎煤机运行。

填空题

词汇应用：选用方框内的单词或短语完成句子。

imagine, mend, worry, hate, explain, fight for, at least,
plenty of, instruction, friendship, stamps

1. I can't ________ what he looks like.
2. Those children enjoy collecting ________.
3. The boys have had a long ________.
4. Can you ________ the hole in my shirt?
5. Don't ________! Everything will be all right.
6. He's going away for ________ a week.
7. The kind-hearted people ________ violence (暴力).
8. Will you please ________ the third paragraph again for us?
9. Before eating these food, you must read the ________ on the pocket.
10. People often have to ________ their liberty (自由).
11. I like eating ________ vegetables every day.

计算题

课本中有这样一句话：“完全氧化1 ×10^-3 kg 脂肪所产生的能量约为39.3 kJ”。在正常情况下，每日摄入50 g ～60 g 油脂，它供给人体日需能量的20% ～50% ，据此，请你粗略估算一下，通常情况下人体每天需要多少能量。