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1964年,我在电厂参加生产实践时,厂里要我改进锅炉的给煤系统,解决运行中堵煤的问题。当时我感到很辣手,因为在不少电厂这都是个“老、大、难”问题。设计院也没有很成熟的经验,加上自己又不是搞这个专业的,更觉难办。怎样来解决堵煤问题呢!这个厂锅炉的给煤方式是:煤→原煤斗→落煤管→炉前给煤皮带→裤叉落煤管→匀煤机→锅炉。堵煤经常发生在原煤斗出口部位和落煤管中,裤叉落煤管虽然也有堵塞现象,但不严重,所以改进工作以解决前两部分堵煤为重点。根据这几年电厂设计和生产运行的经验看,这种给煤系统容易堵煤,比起加装金属小煤斗的给煤系统是要差些。所以一开始就
In 1964, when I participated in the production practice at the power plant, the factory asked me to improve the boiler’s coal feeding system and solve the problem of coal jam during operation. At that time, I felt very hot, because in many power plants this was an “old, big, hard” problem. The design institute did not have a very mature experience, and it was even more difficult to do it with its own professional staff. How to solve the coal-blocking problem? The coal-feeding method of this boiler is: coal → raw coal hopper → falling coal pipe → coal feed belt in front of the furnace → trousers and fork falling coal pipe → straightening machine → boiler. Blocking coal often occurs at the exit of raw coal hoppers and in coal-removal pipes. Although the crotch-fork coal-falling pipe is also blocked, it is not serious. Therefore, the improvement work should be focused on solving the first two parts of coal plugging. According to the design and production operation experience of the power plant in recent years, this kind of coal supply system is easy to stop coal, and is worse than the coal feeding system installed with a small metal hopper. So at the beginning