Six-hole different-included-angle type oxygen lance spray head for converter

The invention discloses a six-hole different-included-angle type oxygen lance spray head for a converter. The six-hole different-included-angle type oxygen lance spray head comprises a spray head bodywhich is provided with six spray holes, wherein the hole diameter of three of the spray holes is larger than the hole diameter of the other three holes; the included angle between the axis of each large-diameter spray hole and the axis of the spraying head body is 11 degrees; and the included angle between the axis of each small-diameter spray hole and the axis of the spraying head body is 13 degrees. By adjusting the oxygen lance spray head included angles and the diameter of the spray holes, the contact area between a gas stream and metal is increased, the metal splashing amount is decreased, the dephosphorizing efficiency is improved, and the spray head metallurgy effect is improved. Compared with existing converter function oxygen supply spray heads, the six-hole different-included-angle type oxygen lance spr