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一、前言固体合成渣喷吹试验于1985年10～11月在鄂钢进行。本试验开始喷吹的前9罐,主要任务是调试双孔喷枪,首先使用的喷嘴直径为2×φ5mm,喷粉罐的喉口直径φ10·5mm,其它喷吹参数均按常规控制,喷粉速度仅为4kg/min,吨钢喷粉量不到2kg。为了提高喷粉速度,曾两次调换喉口,其直径依次增加到φ12、φ14mm,同时调整喷吹参数,提高载流气体的压力和流量,喷粉速度虽然有
I. Introduction Solid synthetic slag injection test was carried out in Hubei Steel from October to November, 1985. The first 9 cans to be sprayed by this test are mainly used to debug double-hole spray gun. The diameter of the nozzle used is 2 × φ5mm and the diameter of the throat of the powder spray can φ10 · 5mm. The other parameters are controlled according to the conventional method. Speed of only 4kg / min, tons of steel powder less than 2kg. In order to improve the speed of powder spraying, the throat has been changed twice, its diameter in turn increased to φ12, φ14mm, while adjusting the injection parameters to increase the pressure and flow of carrier gas, although the speed of dusting