Hollow channel type electromagnetic induction hot melting device and using method thereof

Abstract

The invention relates to the field of steel smelting, in particular to a hollow channel type electromagnetic induction hot melting device and a using method thereof. The hollow channel type electromagnetic induction hot melting device comprises a hot melting body (1) and an inductor (2), and is characterized in that the hot melting body (1) comprises a shell (11) and a lining (12), and the lining (12) is embedded in the shell (11); the shell (11) consists of a first steel shell (111) and a second steel shell (112) which are adjacent to each other; an inner cavity of the lining (12) is divided into an adding chamber (121) and an outflow chamber (122) by a lining wall (13); the inductor (2) comprises an upper iron core (21), a lower iron core (22), a coil (23) and a pivot (24). The using method of the hollow channel type electromagnetic induction hot melting device is characterized by being implemented according to the following steps in sequence: S1, pouring molten steel; s2, melting steel; and S3, molten steel is poured out. The production efficiency is high.

Description

Technical Field

[0001] The invention relates to the field of steel smelting, and in particular to a hollow channel type electromagnetic induction hot melting device and a use method thereof. Background Art

[0002] Scrap steel generated in steel mills, such as scrap plates and scrap steel coils, needs to be cut into small pieces and returned to the furnace for re-smelting. Traditionally, scrap steel is added to the smelting furnace in solid form and melted in the smelting furnace. The amount of scrap steel added is limited, and the smelting speed, molten steel quality, and production efficiency are affected. In some steel mills, there are devices and solutions that use electromagnetic induction furnaces to melt scrap steel into molten steel and add it to the smelting furnace. This device must be powered off when scrap steel is added and molten steel flows out, which has low production efficiency. Summary of the invention

[0003] In order to overcome the defects of the prior art and provide a steelmaking equipment with high production efficiency, the present invention discloses a hollow channel type electromagnetic induction hot melting device and a use method thereof.

[0004] The present invention achieves the purpose of the invention through the following technical solutions: A hollow channel electromagnetic induction hot-melt device, comprising a hot-melt body and an induction body, characterized in that: The hot melt body comprises an outer shell and an inner lining, wherein the inner lining is embedded in the outer shell; The outer shell is composed of a first steel shell and a second steel shell adjacent to each other, an insulating material is filled between the first steel shell and the second steel shell, and the first steel shell and the second steel shell are connected by insulating bolts; The inner cavity of the liner is divided into an inlet chamber and an outlet chamber by an inner liner wall. A first through hole in a vertical direction and two second and third through holes in horizontal directions are provided on the inner liner wall. An outflow hole is provided at the bottom of the outflow chamber, a stopper rod is installed above the outflow hole, and a chute is provided at the upper part of the outflow chamber. The induction body comprises an upper iron core, a lower iron core, a coil and a pivot, the upper iron core is rotatably sleeved outside the pivot, the coil is wound around and fixed on the lower iron core, the lower iron core fixed with the coil is embedded and fixed in the first through hole, and the upper iron core and the lower iron core form a rectangular frame through a hinge; The cylinder bodies of the two driving cylinders are respectively fixed on the foundation, the two ends of one side of the bottom of the hot melt body are respectively connected to and fixed to the movable end of a driving cylinder piston rod, and the two ends of the other side of the bottom of the hot melt body are respectively rotatably arranged on the foundation through a hinge.

[0005] The hollow channel electromagnetic induction hot-melt device is characterized by: The outer shell is made of carbon steel; The insulating material filled between the first steel shell and the second steel shell is made of asbestos or magnesium oxide; the insulating bolts connecting the first steel shell and the second steel shell are made of glass fiber impregnated with epoxy resin matrix through high temperature pultrusion; The method for using the hollow channel electromagnetic induction hot melting device is characterized by: performing the following steps in sequence: S1. Pour molten steel: Add a small amount of molten steel to the adding chamber, and the molten steel flows into the outflow chamber through the second through hole and the third through hole in sequence; S2. Melting steel: Alternating current is passed through the coil, and an alternating magnetic field is induced in the upper and lower iron cores, which further generates an induced current with alternating current direction in the molten steel, thereby generating heat energy to heat the molten steel. Scrap steel is added to the adding chamber, and the scrap steel is gradually melted to form high-temperature molten steel; S3. Pour out the molten steel: lift the stopper rod and the high-temperature molten steel flows out through the outflow hole.

[0006] The present invention has the following beneficial effects: adding of scrap steel, outflow of molten steel and electric heating do not interfere with each other, thus greatly improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0008] The present invention is further described below by means of specific examples. Example

[0009] A hollow channel electromagnetic induction hot-melt device, comprising a hot-melt body 1 and an induction body 2, such as Figure 1 As shown, the specific structure is: The hot melt body 1 comprises an outer shell 11 and an inner lining 12, wherein the inner lining 12 is embedded in the outer shell 11; The housing 11 is composed of a first steel shell 111 and a second steel shell 112 adjacent to each other. Insulating material is filled between the first steel shell 111 and the second steel shell 112. The first steel shell 111 and the second steel shell 112 are connected by insulating bolts. The inner cavity of the liner 12 is divided into an addition chamber 121 and an outflow chamber 122 by a liner wall 13. A first through hole 131 in a vertical direction and two second through holes 132 and a third through hole 133 in horizontal directions are formed on the liner wall 13. An outflow hole 1221 is formed at the bottom of the outflow chamber 122. A stopper rod 7 is installed above the outflow hole 1221. A chute 8 is formed at the upper part of the outflow chamber 122. The inductor 2 includes an upper iron core 21, a lower iron core 22, a coil 23 and a pivot 24. The upper iron core 21 is rotatably sleeved outside the pivot 24. The coil 23 is wound around and fixed on the lower iron core 22. The lower iron core 22 with the coil 23 fixed is embedded and fixed in the first through hole 131. The upper iron core 21 and the lower iron core 22 form a rectangular frame through the hinge 24. The cylinder bodies of the two driving cylinders 4 are respectively fixed on the foundation, and the two ends of one side of the bottom of the hot melt body 1 are respectively connected to and fixed to the movable end of the piston rod of a driving cylinder 4, and the two ends of the other side of the bottom of the hot melt body 1 are respectively rotatably arranged on the foundation through a hinge 6.

[0010] In this embodiment: The housing 11 is made of carbon steel; The insulating material filled between the first steel shell 111 and the second steel shell 112 is made of asbestos or magnesium oxide; the insulating bolts connecting the first steel shell 111 and the second steel shell 112 are made of glass fiber impregnated with epoxy resin matrix through high temperature pultrusion; When this embodiment is used, the following steps are implemented in sequence: S1 pouring molten steel: adding a small amount of molten steel to the adding chamber 121, the molten steel sequentially flows into the outflow chamber 122 through the second through hole 132 and the third through hole 133; S2. Melting steel: When an alternating current is passed through the coil 23, an alternating magnetic field is induced in the upper core 21 and the lower core 22, and an induced current with an alternating current direction is further generated in the molten steel, thereby generating heat energy to heat the molten steel, and the scrap steel 3 is added to the adding chamber 121, and the scrap steel 3 is gradually melted to form a high-temperature molten steel; S3. Pouring out the molten steel: lifting the stopper rod 7, the high-temperature molten steel flows out through the outflow hole 1221.

Claims

1. A hollow channel type electromagnetic induction hot-melt device, comprising a hot-melt body (1) and an induction body (2), characterized in that: The hot-melt body (1) comprises an outer shell (11) and an inner lining (12), wherein the inner lining (12) is embedded in the outer shell (11); The housing (11) is composed of a first steel shell (111) and a second steel shell (112) adjacent to each other, an insulating material is filled between the first steel shell (111) and the second steel shell (112), and the first steel shell (111) and the second steel shell (112) are connected by insulating bolts; The inner cavity of the liner (12) is divided into an addition chamber (121) and an outflow chamber (122) by an inner liner wall (13); a first through hole (131) in a vertical direction and two second through holes (132) and a third through hole (133) in a horizontal direction are provided on the inner liner wall (13); an outflow hole (1221) is provided at the bottom of the outflow chamber (122); a stopper rod (7) is installed above the outflow hole (1221); and a chute (8) is provided at the top of the outflow chamber (122); The induction body (2) comprises an upper iron core (21), a lower iron core (22), a coil (23) and a pivot (24); the upper iron core (21) is rotatably sleeved outside the pivot (24); the coil (23) is wound around and fixed on the lower iron core (22); the lower iron core (22) fixed with the coil (23) is embedded and fixed in the first through hole (131); the upper iron core (21) and the lower iron core (22) form a rectangular frame through a hinge (24); The cylinder bodies of the two driving cylinders (4) are respectively fixed on the foundation, the two ends of one side edge of the bottom of the hot melt body (1) are respectively connected and fixed to the movable end of the piston rod of a driving cylinder (4), and the two ends of the other side edge of the bottom of the hot melt body (1) are respectively rotatably arranged on the foundation via a hinge (6).

2. The hollow channel electromagnetic induction hot melting device according to claim 1, characterized in that: The housing (11) is made of carbon steel; The insulating material filled between the first steel shell (111) and the second steel shell (112) is selected from asbestos or magnesium oxide; the insulating bolts connecting the first steel shell (111) and the second steel shell (112) are made of glass fiber impregnated with an epoxy resin matrix through high-temperature pultrusion.

3. The method for using the hollow channel type electromagnetic induction hot melting device according to claim 1 or 2, characterized in that: Follow the steps below to implement: S1. Pour molten steel: Add a small amount of molten steel to the adding chamber (121), and the molten steel flows into the outflow chamber (122) through the second through hole (132) and the third through hole (133) in sequence; S2. Melting steel: An alternating current is passed through the coil (23), an alternating magnetic field is induced in the upper iron core (21) and the lower iron core (22), and an induced current with alternating current direction is further generated in the molten steel, thereby generating heat energy to heat the molten steel, and scrap steel (3) is added to the adding chamber (121), and the scrap steel (3) is gradually melted to form high-temperature molten steel; S3. Pouring out the molten steel: The stopper rod (7) is lifted, and the high-temperature molten steel flows out through the outflow hole (1221).

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