CAJ | 학술논문

主要针对艾萨熔炼体系中贫化电炉的浸没式油气混合顶吹喷枪对熔池的搅拌效果影响进行实验。设计并搭建了一定相似比的贫化电炉水模型平台，通过计算所得的最佳深度范围设计三喷枪混合顶吹组合实验方案。在其他实验条件，如气含率、喷吹速度等与实际生产相似的前提下，实验研究改变喷枪插入深度对搅拌效果的影响，并对各条件下的实验现象及拍摄照片进行对比。实验结果表明：当顶吹喷枪插入深度为渣层厚度的1/2～2/3时，两相流混合喷射对熔池的搅拌效果最佳，并应用于贫化电炉实际生产，取得了单枪8%以上的节油量。
주요침대애살용련체계중빈화전로적침몰식유기혼합정취분창대용지적교반효과영향진행실험。설계병탑건료일정상사비적빈화전로수모형평태，통과계산소득적최가심도범위설계삼분창혼합정취조합실험방안。재기타실험조건，여기함솔、분취속도등여실제생산상사적전제하，실험연구개변분창삽입심도대교반효과적영향，병대각조건하적실험현상급박섭조편진행대비。실험결과표명：당정취분창삽입심도위사층후도적1/2～2/3시，량상류혼합분사대용지적교반효과최가，병응용우빈화전로실제생산，취득료단창8%이상적절유량。
The stirring effect experiment of immersion top-blowing into molten bath in slag cleaning furnace was conducted for ISA smelting system. A scaled down water model platform of the bath was designed and built. A three top-blowing combination regimen was determined with an optimum range of immersion depth calculated from actual production data. Experimental conditions were the same as actual production,such as gas holdup and injection speed. The experiment studied the impact of single spray gun immersion depth on stirring effect,and compared photos and experimental results under different conditions. When top-blowing immersion depth was about 1/2—2/3 of the slag layer thickness,two-phase mixing injection was optimum,and stirring effect in the bath was also optimum. The stirring radius of two-phase flow in the bath was greater. Application to actual production saved above 8%fuel quantity of single spray gun.