An example of inerting design was given for a pulverized coal drying process, where the inert gas flow rate can be estimated by recycled air flow rate and air leaking rate.
给出了一个煤粉干燥工艺惰化设计的实例。正常运行时，惰化气体流量可通过循环风量和漏风率估算。
Production process used in flammable explosive coal powder drying is empoldered.
开发出了应用于易燃易爆煤粉的一种干燥工艺。
The error in division, screening and drying processes in process of preparing coal sample is analysed. The reasons of error and the corresponding countermeasure are put forward.
分析了煤样制备过程中误差的来源，包括制备过程中的缩分误差、 筛分和干燥过程中产生的误差等，并对误差产生的原因提出了相应的对策。
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