Mounting arrangement for auxiliary burner or lance

A mounting enclosure for an apparatus in a furnace having a hearth of refractory material which collects molten metal and a plurality of fluid cooled panels forming a side wall and having a refractory step extending a width between the side wall and the hearth, said mounting enclosure comprising:

• a fluid cooled enclosure inside of said side wall;
• said enclosure including a front area adapted to face the inside of the furnace, a back area adapted to face the outside of the furnace, and a width between said front area and back area approximately equal to the width of the step;
• an aperture adapted to receive the apparatus;
• and
• a porch having a corrugated slope toward the inside of the furnace for deflecting charged scrap away from the mounting enclosure and for maintaining a slag covering,
• wherein said apparatus aperture is aligned at an mounting angle of between 20 and 50 degrees from the horizontal to direct the discharge end of the apparatus toward the molten metal and wherein the apparatus when received through said apparatus aperture extends near the edge of the step.

A method for mounting an apparatus with a discharge end used in a furnace having a hearth of refractory material which collects molten metal and a plurality of fluid cooled panels forming a side wall with a refractory step extending a width between the side wall and the hearth, said molten metal circulating in the furnace in a preferred direction, said method of mounting comprising:

• mounting the apparatus such that its discharge end extends near the edge of the step in the furnace;
• directing the apparatus at a mounting angle of between 30-60 degrees from the horizontal direction to direct the discharge end of the apparatus toward the surface of the molten metal;
• and
• directing the apparatus at a mounting angle of between 0-20 degrees from a radial direction to the center of the furnace to direct the discharge end of the apparatus in the direction of the melt circulation of the furnace.

A mounting arrangement for a plurality of apparatus with discharge ends used in a furnace having a hearth of refractory material which collects molten metal and a plurality of fluid cooled panels forming a side wall and having a refractory step extending a width between the side wall and the hearth, said mounting arrangement comprising:

• a mounting enclosure having a width approximately equal to the width of the refractory step, said mounting enclosure having a first aperture adapted to receive a first apparatus and a second aperture adapted to receive a second apparatus;
• at least one of the wall panels adapted to receive the enclosure;
• wherein the first apparatus when received through said first aperture has its flame discharge end extending near the edge of said step;
• and
• wherein the second apparatus when received through said second aperture has its flame discharge end extending near the edge of said step.

A mounting arrangement for a plurality of apparatus with discharge ends used in a furnace having a hearth of refractory material which collects molten metal and a plurality of fluid cooled panels forming a side wall and having a refractory step extending a width between the side wall and the hearth, said mounting arrangement comprising:

• a fluid cooled side wall panel adapted to receive a mounting enclosure;
• said mounting enclosure being fluid cooled and mounted inside of said side wall, said mounting enclosure having a front area adapted to face the inside of the furnace, a back area adapted to face the outside of the furnace, a width between said front area and back area approximately equal to the width of said step, a porch having a corrugated slope toward the inside of the furnace for deflecting charged scrap away from said mounting enclosure and means for maintaining a slag covering, and said mounting enclosure further having a first aperture adapted to receive a first apparatus and a second aperture adapted to receive a second apparatus;
• wherein said first and second apertures are aligned at a mounting angle of up to 60 degrees from the horizontal to direct the flame discharge ends of the first and second apparatus toward the molten metal;
• and
• wherein the first and second apparatus when received through said first and second apertures have their flame discharge ends extending near the edge of said step.

A mounting enclosure for an apparatus in a furnace having a hearth of refractory material which collects molten metal and a plurality of fluid cooled panels forming a side wall and having a refractory step extending a width between the side wall and the hearth, said mounting enclosure comprising:

• a fluid cooled enclosure for mounting inside of the side wall;
• said enclosure including a front area adapted to face the inside of the furnace, a back area adapted to face outside of the furnace, and a width between said front area and back area approximately equal to the width of the step;
• a first aperture adapted to receive a first apparatus;
• a second aperture adapted to receive a second apparatus;
• a corrugated porch sloped toward the inside of the furnace for deflecting charged scrap away from said mounting enclosure;
• means for maintaining a slag covering,
• wherein said first aperture and second aperture are aligned at an mounting angle of between 20 and 50 degrees from the horizontal to direct the discharge ends of the first and second apparatus toward the molten metal and wherein the discharge ends of the first and second apparatus when received through said first and second apertures extend near the edge of the step.

A method for mounting a plurality of apparatus with discharge ends used in a furnace having a hearth of refractory material which collects molten metal and a plurality of fluid cooled panels forming a side wall with a refractory step extending a width between the side wall and the hearth, said molten metal circulating in the furnace in a preferred direction, said method of mounting comprising:

• mounting a first apparatus such that its discharge end extends near the edge of the step in the furnace;
• directing said first apparatus at a mounting angle of between 30-60 degrees from the horizontal direction to direct the discharge end of the apparatus toward the surface of the molten metal;
• directing said first apparatus at a mounting angle of between 0-20 degrees from a radial direction to the center of the furnace to direct the discharge end of the apparatus in the direction of the melt circulation the of the furnace;
• and
• mounting a second apparatus such that its discharge end extends near the edge of the step in the furnace;
• directing said second apparatus at a first mounting angle of between 30-60 degrees from the horizontal direction to direct the discharge end of the apparatus toward the surface of the molten metal;
• and
• directing said second apparatus at a second mounting angle of between 0-20 degrees from the radial direction to the center of the furnace to direct the discharge end of the apparatus toward the circulation the of the furnace.