MOULD FOR RECEIVING SLAG AND METAL Russian patent published in 2023 - IPC B22D7/06 

FIELD: foundry production.

SUBSTANCE: mould for receiving the slag melt of the aluminothermic process of smelting ferrovanadium with the subsequent separation of the metal component is made in the form of a through truncated cone widened at the top and with a round cross-section and equipped with an attached bottom. The bottom consists of a central part - a bowl (3) and a peripheral part - a tray (1), separated from each other by a heat-insulating partition (4), having a contact support surface and made with the ability to move relative to each other in the radial direction. The thickness of the bowl in the molten slag receiving area is 80-140 mm, and its working surface is made in the form of a double conical recess with a slope in the peripheral zone of 9-30% with a subsequent increase to the top of the recess by 3-10%. On the outside of the bowl, 3-6 through technological openings are located evenly along the side surface.

EFFECT: deep deposition of beads is ensured, which reduces losses of vanadium, improves the quality of the slag, and improves durability of the mould.

2 cl, 2 dwg 1 tbl