摘要：针对燃煤电厂的锅炉干渣气力输送系统,采用气-固射流喷射器进行干渣气力输送实验,通过改变射流喷射器的结构参数和运行操作参数,分析各结构尺寸和运行参数对下料特性的影响,并通过数值模拟计算,对实验结果进行验证。结果表明,通过优化射流喷射器的结构尺寸和运行参数,在下料口可形成负压,提高落料均匀性及给料机运行可靠性。

关键词：射流喷射器；喷嘴；气力输送

Abstract: The factors that influenced the performance of gas-solid injector were analyzed by experiment and numerical simulation for the slag pneumatic conveying system of coal-fired power’s boiler. The slag pneumatic conveying experiment were carried out for gas - solid jet injector， the structure size and operating parameters that affected the discharge characteristics were analyzed with data by changing the jet injector’s structure and operating parameters. The experimental results were validated by numerical simulation. The results show that vacuum can be formed in blanking mouth by optimizing the structure size and operating parameters of the jet injector. The blanking becomes more uniform and the feeder runs more reliably. 

Keywords: jet injector； nozzle； pneumatic conveying