Turbulence Calculations of a Dual-Structure Oxygen Lance for Converter Based on Hydrodynamics

Table 1

Nozzle size parameters of the oxygen lance.

Sequence number	The identifier of oxygen lance nozzle model	The exit diameter of the large hole (d13) (mm)	The exit diameter of the small hole (d23) (mm)	The throat diameter of the large holes (d12) (mm)	The throat diameter of the small holes (d22) (mm)	Length of throat (mm)	Inclination angle of large hole (α1) (°)	Inclination angle of small hole (α2) (°)	Proportion of flow rate through large hole (%)	Proportion of flow rate through small hole (%)	Distance between large hole and central axis (L1) (mm)	Distance between small hole and central axis (L2) (mm)
1	12-16-60	60.9	49.7	45.7	37.3	30	12	16	60	40	110	120
2	12-17-60	60.9	49.7	45.7	37.3	30	12	17	60	40	110	120
3	12-18-60	60.9	49.7	45.7	37.3	30	12	18	60	40	110	120
4	13-16-60	60.9	49.7	45.7	37.3	30	13	16	60	40	110	120
5	13-17-60	60.9	49.7	45.7	37.3	30	13	17	60	40	110	120
6	14-17-65	61.7	55.8	46.6	42.2	30	14	17	55	45	110	120
7	14-17-60	65	53	49	40	30	14	17	60	40	110	120
8	14-17-55	67.5	49.6	50.7	37.2	30	14	17	65	35	110	120
9	15-5	63.8		47.7		47	15		100		117.5
10	15-6	58.6		44		30	15		100		110