MULTI-BURNER ROTARY FURNACE MELTING SYSTEM AND METHOD

A method of melting a charge in a double-pass tilt rotary furnace having a door, includes operating a first burner at a first firing rate, the first burner being mounted in a lower portion of the door and producing a first flame having a length; operating a second burner at a second firing rate, the second burner being mounted in an upper portion of the door and producing a second flame having a length, the second flame being distal from the charge relative to the first flame; in an initial phase when the solids in the charge impede the first flame, controlling the second firing rate to be greater than the first firing rate; and in an later phase after melting of the solids in the charge sufficiently that the first flame is not impeded, controlling the first firing rate to be greater than the second firing rate. 一种在具有门的双程倾斜旋转炉中熔融炉料的方法，包括：以第一燃烧速率操作第一喷燃器，第一喷燃器安装在门的下部部分中并产生具有长度的第一火焰；以第二燃烧速率操作第二喷燃器，第二喷燃器安装在门的上部部分中并产生具有长度的第二火焰，第二火焰相对于第一火焰远离炉料；在炉料中的固体阻碍第一火焰的初始阶段，将第二燃烧速率控制为大于第一燃烧速率；以及在炉料中的固体充分熔融使得第一火焰不受阻碍之后的后期阶段，将第一