The present invention provides a Co-free heat-resistant alloy for a hearth metal member that has properties superior to or equal to those of Co-containing heat resistant steel. The heat-resistant alloy for a hearth metal member according to the present invention is a heat-resistant alloy used in a hearth metal member of a steel heating furnace, the heat resistant alloy containing: 0.05% to 0.5% of C; more than 0% and 0.95% or less of Si, where 0.05% C+Si1.0%; more than 0% and 1.0% or less of Mn; 40% to 50% of Ni; 25% to 35% of Cr; 1.0% to 3.0% of W; and 10% or more of Fe and inevitable impurities as the balance, with all percentages being in mass %. The heat-resistant alloy for a hearth metal member may further contain 0.05% to 0.5% of Ti and/or 0.02% to 1.0% of Zr, with all percentages being in mass %

The present invention provides a Co-free heat-resistant alloy for a hearth metal member that has properties superior to or equal to those of Co-containing heat resistant steel. The heat-resistant alloy for a hearth metal member according to the present invention is a heat-resistant alloy used in a hearth metal member of a steel heating furnace, the heat resistant alloy containing: 0.05% to 0.5% of C; more than 0% and 0.95% or less of Si, where 0.05% C+Si1.0%; more than 0% and 1.0% or less of Mn; 40% to 50% of Ni; 25% to 35% of Cr; 1.0% to 3.0% of W; and 10% or more of Fe and inevitable impurities as the balance, with all percentages being in mass %. The heat-resistant alloy for a hearth metal member may further contain 0.05% to 0.5% of Ti and/or 0.02% to 1.0% of Zr, with all percentages being in mass %

The present invention provides an electric furnace including: a cylindrical furnace wall; a furnace cover that is provided at an upper end of the furnace wall; and a furnace bottom that is provided at a lower end of the furnace wall and includes a deep bottom portion and a shallow bottom portion as a region having a height of 150 mm to 500 mm from a deepest point of the deep bottom portion, in which a slag pouring port into which molten slag or a solidified slag lump is capable of being poured from a slag transport container directly or through a tilting trough is provided, the slag pouring port overlaps the shallow bottom portion in a plan view, and the area ratio of the shallow bottom portion to the furnace bottom in a plan view is 5% to 40%.

The present invention provides an electric furnace including: a furnace body that includes an electrode; and a slag holding furnace that is configured to hold molten slag in a molten state and is capable of pouring the molten slag into the furnace body when tilted, in which the furnace body includes a cylindrical furnace wall, a furnace cover that is provided at an upper end of the furnace wall, a furnace bottom that is provided at a lower end of the furnace wall and includes a deep bottom portion and a shallow bottom portion as a region having a height of 150 mm to 500 mm from a deepest point of the deep bottom portion, and a slag pouring port that is provided at the furnace cover and through which the molten slag is poured from the slag holding furnace, the slag pouring port overlaps the shallow bottom portion in a plan view, and the area ratio of the shallow bottom portion to the furnace bottom in a plan view is 5% to 40%.

A metallurgical furnace including a hearth, a sidewall structure, and a surrounding cooling element structure including cooling elements. Each cooling element have a planar back surface. A surrounding binding structure including binding sections surrounds partly the surrounding surface. Adjacent binding sections of the surrounding binding structure are connected by tension assemblies. At least one planar back surface of at least one cooling element is parallel with and is in a horizontal direction of the metallurgical furnace supported by at least one planar surface means of at least one binding section of the surrounding binding structure. Said at least one cooling element of the surrounding cooling element structure is located at least partly between the surrounding surface and said one binding section.

A metallurgical furnace including a hearth, a sidewall structure, and a surrounding cooling element structure including cooling elements. Each cooling element have a planar back surface. A surrounding binding structure including binding sections surrounds partly the surrounding surface. Adjacent binding sections of the surrounding binding structure are connected by tension assemblies. At least one planar back surface of at least one cooling element is parallel with and is in a horizontal direction of the metallurgical furnace supported by at least one planar surface means of at least one binding section of the surrounding binding structure. Said at least one cooling element of the surrounding cooling element structure is located at least partly between the surrounding surface and said one binding section.

A metal melting and retention furnace is provided, wherein a tubular member in a furnace chamber, a table-like melting part is formed directly below the tubular member and a melting burner is arranged in the furnace chamber, a molten metal retention part in which the melting material which has been melted is introduced and which is provided with a retention burner for heating the introduced molten metal is formed around the outer circumference of the table-like melting part, and the molten metal in the molten metal retention part flows to a molten metal ladle part adjacent to the furnace chamber.

A metal melting and retention furnace is provided, wherein a tubular member in a furnace chamber, a table-like melting part is formed directly below the tubular member and a melting burner is arranged in the furnace chamber, a molten metal retention part in which the melting material which has been melted is introduced and which is provided with a retention burner for heating the introduced molten metal is formed around the outer circumference of the table-like melting part, and the molten metal in the molten metal retention part flows to a molten metal ladle part adjacent to the furnace chamber.

A molten metal scrap submergence system comprising a furnace and a vortexing scrap submergence well. The vortexing scrap submergence well includes a diverter suspended above the well and oriented for immersion in a bath of molten metal circulating within the well. The system, or an alternative scrap submergence system, can include a hood element disposed in an overlapping position with regard to a top opening of the scrap submergence well. The hood at least substantially seals the top opening. The hood element includes a scrap piece feed chute and a burner allowing carbon containing vapor evaporated from the surface of the molten scrap pieces to combust and form predominantly water. The system, or an alternative scrap submergence system can include internal side walls of the well with a first diameter portion adjacent and above said ramp and a second, larger diameter portion above said first portion.

The present invention relates to a pharmaceutical formulation for vaginal administration, wherein the formulation comprises a pharmaceutical acceptable excipient and glucono -lactone, wherein the glucono -lactone is present in an amount of 5 to 99 wt % of the formulation. The invention also relates to a pharmaceutical formulation according to the invention for use in the prevention or treatment of a urogenital fungal infection. Furthermore, the invention relates to glucono -lactone (formula (III)), for use in the in the prevention or treatment of a fungal infection.