问题
问答题 简答题
电力行业标准对电厂入炉煤采样有何要求？
答案
参考答案：
入炉原煤样在输送系统中采取，如皮带上、落煤流处。为达到采样精密度，原煤应使用机械化采样装置；采样精密度以干燥基灰分计算时，在95%概率下为±1%以内。
标准规定：入炉煤粉样的检测结果只用于监测制粉系统运行工况，不能代表入炉原煤质量，并且不能用于计算煤耗。
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电力行业标准对电厂入炉煤采样有何要求？
参考答案：
入炉原煤样在输送系统中采取，如皮带上、落煤流处。为达到采样精密度，原煤应使用机械化采样装置；采样精密度以干燥基灰分计算时，在95%概率下为±1%以内。
标准规定：入炉煤粉样的检测结果只用于监测制粉系统运行工况，不能代表入炉原煤质量，并且不能用于计算煤耗。
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| Lucy bought shoes from shoe factory and tried to sell them to people. There were not many 1 in small villages. People there didn't want to go to town to buy their shoes. So Lucy 2 a lot of shoes there. One day Lucy 3 along the street. She stopped in front of a house. There was a small boy beside the door. Lucy opened the window of her lorry (运货汽车) and asked the boy, "Hello! Is your mother 4 ?" The boy looked at Lucy. Then he answered, "Yes, she is." "That's 5 ," Lucy said. She got out of the lorry, took some 6 and went to the door of the house. She 7 the door and waited for a few 8 , but nobody came to answer the door. Lucy knocked again and waited for a few more minutes, but 9 no one answered. Then Lucy looked at the boy and said 10 , "Your mother is not at home!" "She is!" the boy said. "Why didn't she open the door?" "This is not my house!" the boy shouted. | ||||
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