问题:带式输送机的托辊倾角由20°提高到30°,其输送量可提高()...
Friday, September 16, 2022
Friday, September 16, 2022
问题:把煤加热到一定温度时,煤中的碳氢化合物、氧化碳、碳化氢、氢气以及氮气等就会以气体形式逸出,这些气态物质就称为煤的()。...
Wednesday, April 3, 2024
Tuesday, December 27, 2022
问题:斗轮机行走机构啃轨的消除方法有()。A、修正变形;B、更换车轮;C、修整齿轮;D、清除冰或油污。...
Monday, November 28, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Friday, September 16, 2022
Tuesday, September 13, 2022
Friday, September 16, 2022
问题:叶轮给煤机行走电机停止转动的原因是()。A、拨煤锥齿轮箱中齿轮损害;B、减速电机中的轴承损坏;C、被异物或大块煤卡住;D、行走电机损坏。...
Wednesday, May 10, 2023
Friday, September 16, 2022
Friday, September 16, 2022
问题:带式输送机找正时中间架间距的偏差不应超过±2.5mm。()...
Friday, September 16, 2022
问题:集控值班员应掌握输煤系统一般电气设备的工作原理、主要参数、运行使...
Friday, September 16, 2022
Wednesday, April 3, 2024
Friday, September 16, 2022
问题:脱水仓使用料位计发出信号距满仓()米,切换另一仓。...
Friday, September 16, 2022
问题:污水泵停运时,先关闭入出阀门,然后按下停止按钮,水泵停转。()...
Friday, September 16, 2022
问题:叶轮给煤机叶轮传动不平稳、晃动的原因是什么?如何解决?...
Friday, September 16, 2022