流态化浓相输粉及计量的试验研究

Experimental study of Fluidized Dense-Phase Coal Powder Transport and Metering.

本项试验研究工作实现了流态化浓相的稳定输送,试验测定了在常压及增压情况下流化床给粉流量随床层压降变化的规律,成功地解决了煤粉难以正常流化的问题。叙述了采用流化方法进行计量的基本原理,介绍了自动计量系统,并对计量精度进行了检验。

Through an experimental study and related tests the stable transport of fluidized dense-phase coal powder has been achieved and the variation of the fluidized bed coal dust flow rate under normal and supercharged pressure with fluidized bed pressure drop identified, thus successfully resolving the problem of normal fluidized flow of coal powder. Described in the paper are the basic principles of metering techniques by the use of fluidization method and the automatic metering system employed by the authors with the metering precision being verified.