问题 问答题 简答题

造成烧成带倾斜的原因有哪些。

答案

参考答案:

①石灰石与焦炭的分布不均匀,石灰石与焦炭混合不均匀,料面形状与规定形状差异大。

②窑内下料不均匀,原燃料含泥土等杂质过多,造成石灰粘结;焦比过高,温度上升引起熔融结瘤,排灰设备不能均匀出灰。

③由上述原因造成偏析,烧成带倾斜引起燃烧空气偏行加剧,再导致倾斜加剧,形成恶性循环。送风管局部堵塞,造成送风不均匀气流偏析,窑顶废气方散不均匀、不稳定。

单项选择题

Randy Kraus was paralyzed. His left side was useless. But his right hand was (1) enough to lift a bucket to his forehead. Once, he’d been a police officer and owned a private-eye agency. Once, he’d been p and able. Now, he felt he was nothing.

His (2) started with Parkinson’s disease, but it didn’t (3) there. In July 2002, the 60 year old Kraus went into the hospital for an operation to control the shaking. (4) , during the operation, he had a stroke. He was paralyzed. The (5) man, who loved golf, could think, but couldn’t (6) . Kraus wanted the doctors to (7) it to him straight. "You may never walk again, " they told him. "Maybe you won’t (8) be able to talk. "

Once at home, he (9) he couldn’t lift a fork or take a drink by himself. Physical treatment was so painful and slow. What did he have to (10) for So now Kraus held the gun against his head. (11) the cold metal on his skin, he began to consider not his pain, but the pain he (12) cause his wife, daughters and grandchildren. He didn’t pull the trigger.

"You are where you are", his exercise physiologist, Andrew Garud told him. "The pace would be slow; the pain would be (13) . But as long as you are (14) , you have the ability to get better. " After three months of (15) with Garud, Kraus wanted to see if he could (16) . He could. Then he took three steps, sat down and cried like a baby. One step (17) to another. Next he managed a short walk. It was the hardest (18) of Kraus’s life.

Garud kept saying he could (19) more. Now, Kraus can brush his teeth, shave himself and get around the house with a walker. Little success only the paralyzed can (20) understand.

17().

A.turned

B.pointed

C.led

D.stuck

单项选择题