JP6767054B2 - Wire processing equipment - Google Patents

Description

The present invention relates to a wire processing apparatus that performs processing such as adjusting the components of a molten metal by inserting a metal wire containing a material such as metallic magnesium into a molten metal obtained by melting a metal such as iron. is there.

Conventionally, a ladle, which is a container for storing the molten metal, has been used for transporting or adjusting the composition of the molten metal obtained by melting the metal.

For example, in Patent Document 1, a cylindrical container-shaped ladle for molten metal that opens upward to store the molten metal inside, and a lid for the ladle located above the ladle are provided, and the ladle is provided. It is disclosed that the lid has an insertion portion through which the metal wire through which the guide pipe is inserted is inserted and a chimney for discharging the smoke generated when the metal wire is added to the molten metal, respectively. ing.

Japanese Unexamined Patent Publication No. 2016-137501

However, in the ladle for molten metal of Patent Document 1, an insertion portion for inserting a metal wire is provided in the lid for the intake pan, but in order to avoid interference with the guide pipe located above the insertion portion, the insertion portion and the insertion portion are provided. Since it is necessary to provide a gap between the guide pipe and the ladle, when the lid for the ladle is attached to the ladle and a metal wire such as metal magnesium is inserted into the ladle to adjust the composition, the metal wire and the ladle There was a risk that the molten metal would leak to the outside through the insertion part due to the violent reaction caused by the contact.

Further, in the ladle for molten metal of Patent Document 1, an insertion portion for inserting a metal wire into the lid for the ladle and a chimney for discharging smoke generated when the metal wire is added to the molten metal are independently erected. Therefore, when the lid for the ladle is placed on the ladle and the metal wire is inserted and processed, it is difficult to adjust the pressure in the internal space of the ladle and the lid for the ladle. There was also.

Therefore, in the present invention, a lid is attached to the main body of the ladle, and a solid wire made of only a material such as magnesium metal or a metal wire which is a coward wire tightly coated with a thin steel plate or the like is inserted into the molten metal. Even if a violent reaction occurs due to contact between the metal wire and the molten metal during the component adjustment process, prevent it from scattering to the outside from the place where the metal wire is inserted, and place the lid on the ladle body. An object of the present invention is to provide a wire processing apparatus capable of adjusting the pressure in the internal space of the ladle body and the lid when the metal wire is inserted and processed.

[1] That is, the present invention includes a ladle body (1) for accommodating the molten metal (8) and a lid (2) for covering the opening (13) of the ladle body (1). The lid (2) is provided with an exhaust stack (3) for discharging the substance generated by supplying the metal wire (W) to the molten metal (8) from the ladle body (1). A guide cylinder (4) for guiding the metal wire (W) is provided inside the cylinder (3), and the exhaust pipe (3) is erected on the lid (2). The wire processing apparatus is provided with a second exhaust stack (32) in which the exhaust stack (31) and the first exhaust stack (31) are separated from each other and the first exhaust stack (31) is internally provided. ..

[ 2 ] Then, a gas is sent from one end of the guide cylinder (4) at which the metal wire (W) is to be inserted toward the other end of the guide cylinder (4) located on the lid body (2) side. The wire processing apparatus according to the above [1] or the above [2], which comprises the air portion (5).

[ 3 ] The dust collector (6) for sucking the substance generated by supplying the metal wire (W) to the molten metal (8) through the exhaust stack (3) is provided. The wire processing apparatus according to any one of [1] to [3] above.

[ 4 ] The first exhaust stack is provided with a dust collector (6) for sucking the substance generated by supplying the metal wire (W) to the molten metal (8) through the exhaust stack (3). The wire processing apparatus according to the above [ 1 ], wherein a gap (33) capable of sucking outside air is provided between the (31) and the second exhaust stack (32).

According to the present invention, a lid is attached to the main body of the ladle, and a solid wire made of only a material such as metallic magnesium or a metal wire which is a coward wire whose material is tightly coated with a thin steel plate or the like is inserted into the molten metal. Even if a violent reaction occurs due to contact between the metal wire and the molten metal during the component adjustment process, prevent it from scattering to the outside from the place where the metal wire is inserted, and place the lid on the ladle body. When the metal wire is inserted and processed, the pressure in the internal space of the ladle body and the lid can be adjusted.

It is a front view of the wire processing apparatus of this invention. FIG. 5 is a partial cross-sectional view taken along the line AA of the wire processing apparatus of the present invention.

Hereinafter, embodiments of the wire processing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. Since the embodiments described below are specific examples preferable for carrying out the present invention, various technical restrictions are made, but the present invention is intended to particularly limit the invention in the following description. Unless otherwise stated, it is not limited to this form. Further, the vertical direction in the description is the vertical direction in FIGS. 1 and 2. The expression indicating the numerical range includes an upper limit and a lower limit.

As shown in FIGS. 1 and 2, in the wire processing apparatus of the present invention, the ladle body 1 that houses the molten metal 8 and the lid that covers the opening 11 that opens upward of the ladle body 1 It has a body 2.

The ladle body 1 is a bottomed, substantially cylindrical container, and an opening 11 for pouring the molten metal 8 or the like is provided in the upper portion. Further, since the ladle body 1 is in direct contact with the molten metal 8, particularly on the inner side surface and the inner bottom surface, silica, zirconia, which are excellent in refractory bricks, refractory heat insulating bricks, etc. It is preferable that the material is mainly composed of an inorganic compound such as clay or alumina. Further, in another embodiment, a groove is provided on the upper end surface of the ladle body 1 so as to surround the opening 11, or a groove is provided on the lower surface of the lid 2 that abuts on the upper end surface of the ladle body 1. When the lid 2 is placed by disposing a flexible gasket that can be deformed by stress in those grooves, the molten metal 8 is ejected and leaks from the gap between the ladle body 1 and the lid 2. You can try to prevent it. In addition, those grooves can be provided in at least one of the ladle body 1 and the lid 2.

The lid 2 is a member that covers the opening 11 of the ladle body 1, and faces outward toward the box-shaped lid base 21 having a space S toward the opening 11 side and the peripheral edge of the lid base 21. It is provided with a flange portion 22 projecting from the top. Since the lid base 21 has a space S inside, a violent reaction occurs when a metal wire is added to the molten metal 8 in the ladle body 1, and even if the pressure suddenly increases, the air in the space S remains. The force of cushioning and pushing up the lid 2 can be relaxed.

Further, the lid 2 has a plate-shaped lid exterior portion 23 located on the outside and a lid fireproof portion 24 located on the inside that can come into contact with the molten metal 8, and the lid exterior portion 23 and the lid fireproof portion. A part of the lid 24 constitutes the lid base portion 21, and the other portion of the lid exterior portion 23 and the lid fireproof portion 24 constitutes the collar portion 22. The lid exterior portion 23 is preferably made of a material having strength and fire resistance such as metal. Further, since the lid refractory portion 24 can come into direct contact with the molten metal 8, inorganic compounds such as silica, zirconia, clay and alumina having excellent fire resistance, heat resistance and corrosion resistance such as refractory bricks and refractory heat insulating bricks. It is preferable that the material is mainly composed of.

Then, in order to add the metal wire W to the molten metal 8 in the pot body 1, a hole is formed on the upper surface of the lid base 21 to communicate the internal space S with the outside. An exhaust stack 3 is inserted into the hole.

The exhaust stack 3 is inserted in the upper part of the lid 2 so as to stand upright against the lid 2, and the substance generated by the supply of the metal wire W to the molten metal 8 is discharged from the pan body 1. It is a shaped member. When the metal wire W is added to the molten metal 8, the exhaust stack 3 does not release substances such as steam derived from the metal wire W generated by the reaction between the metal wire W and the molten metal 8 to the outside to increase the internal pressure too much. can do.

The exhaust stack 3 is formed from a first exhaust stack 31 erected on the lid 2 and a second exhaust stack 32 or the like in which the first exhaust stack 31 is physically separated from the first exhaust stack 31 and the first exhaust stack 31 is installed internally. It is configured. The first exhaust stack 31 is a tubular member that is erected substantially vertically from the upper portion of the lid 2 and has an upper end and a lower end opened. The second exhaust stack 32 has an inner diameter larger than the outer diameter of the first exhaust stack 31, so that the first exhaust stack 31 is partially installed inside, the lower end is opened, and the guide cylinder 4 is placed at the upper end. It is a member closed by a plate member having a hole for insertion. Even if the second exhaust stack 32 is moved up and down by 30 to 200 cm, since the first exhaust stack 31 is partially installed internally, substances such as volatile components generated by adding the metal wire W are almost leaked. It can be exhausted without. The length of the vertical stroke of the first exhaust stack 31 installed in the second exhaust stack 32 can be variously designed depending on the conditions such as the installation location. By physically separating the exhaust stack 3 in this way, as shown in FIG. 1, when the lid 2 is moved up and down from the pan body 1, the second exhaust stack 32 is not moved. Since it is only necessary to move the first exhaust stack 31 which is erected on the lid 2 and is integrated with the lid 2, the force for moving the lid 2 is smaller than that when moving it together with the second exhaust stack 32. The holding member C such as a chain for holding the lid 2 and the drive source D such as a cylinder driven by electric power can be miniaturized, and thus the wire processing device can be miniaturized. In the present embodiment, the exhaust stack 3 is composed of two separated members, the first exhaust stack 31 and the second exhaust stack 32, but in another embodiment, the exhaust stack 3 is a tubular member composed of one member. be able to.

Further, between the first exhaust stack 31 and the second exhaust stack 32, there is a gap 33 in which outside air can be sucked by a dust collector 6, which will be described later. By having the gap 33, the pressure of the space S is lowered more than necessary and the substance such as the volatile component generated by adding the metal wire W is not increased, and the first exhaust stack 31 and the second exhaust stack 32 Substances such as volatile components floating inside can be sucked by the dust collector 6. In the present embodiment, the exhaust stack 3 is airtight in the gap 33 between the first exhaust stack 31 and the second exhaust stack 32, but in other embodiments, the splashed molten metal 8 A ring member made of an inorganic material such as silica, alumina, or zirconia is inserted into the void 33 so that combustion or deterioration does not occur even if a part thereof adheres, so that almost no ventilation is possible, and the exhaust stack It is also possible to improve the airtightness inside the 3 and weaken the suction force of the dust collector 6 described later, or make it easier to adjust the pressure by using the dust collector 6 having a weak suction force in advance.

Further, on the side surface of the second exhaust stack 32, a tubular third exhaust stack 34 is erected so as to communicate with the inside of the first exhaust stack 31 and the second exhaust stack 32. The third exhaust stack 34 serves as a connecting path through which substances such as volatile components generated by adding the metal wire W pass inside the first exhaust stack 31 and the second exhaust stack 32 and are collected by the dust collector 6. There is. Since the inner diameter of the third exhaust stack 34 can be designed independently of the inner diameter of the first exhaust stack 31 and the inner diameter of the second exhaust stack 32, it can be appropriately designed in consideration of the suction force of the dust collector 6. it can. In this embodiment, the first exhaust stack 31, the second exhaust stack 32, and the third exhaust stack 34 have a cylindrical shape, but in other embodiments, the first exhaust stack 31, the second exhaust stack 32, and the third exhaust stack 34 have a cylindrical shape, an elliptical cylinder shape, or the like. be able to.

The guide cylinder 4 is an elongated tubular member provided inside the exhaust pipe 3 and guides the metal wire W to the ladle body 1. More specifically, a part of the guide cylinder 4 is provided inside the second exhaust pipe 32 of the exhaust pipe 3 along the longitudinal direction of the second exhaust pipe 32, and the other part is the exhaust pipe 3. Among them, the inside of the first exhaust stack 31 is provided along the longitudinal direction which is the insertion direction of the first exhaust stack 31 with respect to the lid 2. In the present embodiment, the guide cylinder 4 has a cylindrical shape, but in other embodiments, the guide cylinder 4 has a cylindrical shape, an elliptical cylinder shape, or the like as long as the metal wire W can be inserted. Can be done.

The guide cylinder 4 is inserted into a hole of a plate member provided at the upper end of the second exhaust pipe 32, and is fixed to the plate member at the upper end of the second exhaust pipe 32. Further, the guide cylinder 4 is preferably made of a material of a metal such as stainless steel or iron or an inorganic compound material such as ceramics such as silica, zirconia or alumina.

The air supply unit 5 is a member that sends gas from one end of the guide cylinder 4 that starts inserting the metal wire W toward the other end of the guide cylinder 4 located on the lid 2 side. Specifically, the air supply unit 5 is a member that includes a fan that can rotate with electric power or the like and various compression devices that compress the gas and sends the gas in a certain direction, and is not limited to air. It is a member such as a high-pressure gas cylinder into which an inert gas such as nitrogen or argon is press-fitted. As shown in FIG. 2, air can be blown from the air blower unit 5, which is a blower including a compression device, from the upper side to the lower side of the guide cylinder 4 via the blower pipe T. The air supply unit 5 prevents a substance such as steam derived from the metal wire W generated by the reaction between the metal wire W and the molten metal 8 when the metal wire W is added to the molten metal 8 to flow into the guide cylinder 4. Since it is prevented and the guide cylinder 4 is not clogged, the metal wire W can be stably transmitted.

It is preferable that the air supply unit 5 is provided with a control device that can be installed by purchasing a commercially available product or the like and can adjust the amount of air blown.

The dust collector 6 is a member that sucks the substance generated by supplying the metal wire W to the molten metal 8 through the exhaust stack 3. Specifically, the dust collector 6 has a plurality of fine holes for adsorbing a fan that can rotate by power such as electric power and a substance such as fine particles generated by supplying the metal wire W to the molten metal 8. It is a device equipped with a filter and the like. Then, as shown in FIG. 2, the dust collector 6 is connected to the end of the third exhaust stack 34 of the exhaust stack 3 opposite to the second exhaust stack 32, and is connected to the first exhaust stack 31 and the second exhaust stack 32. It communicates with the inside of. When the metal wire W is added to the molten metal 8 by the dust collector 6, substances such as steam generated by the reaction between the metal wire W and the molten metal 8 are collected from the first exhaust stack 31, the second exhaust stack 32, and the like. Then, it can be sucked through the inside of the third exhaust stack 34.

As the dust collector 6, it is preferable that a commercially available product or the like can be purchased and installed, and a control device capable of adjusting the suction amount is provided. Further, it is more preferable that the dust collector 6 can be controlled to blow and suck at a constant air volume in conjunction with the air volume of the air supply unit 5.

As shown in FIGS. 1 and 2, the wire transmission machine 7 is located above the exhaust pipe 3 and the guide cylinder 4, and has a first roller 72 that is rotated by power from a drive source 71 that is a motor, and a first roller 72. It is a member including a second roller 73 that opposes and drives the roller 72. By adjusting the distance between the first roller 72 and the second roller 73 relative to each other, the metal wire W can be sandwiched and inserted into the guide cylinder 4. The rotation speed of the first roller 72 is adjusted by a control device (not shown), and the metal wire W is added to the molten metal 8 at a predetermined speed via the exhaust pipe 3 and the guide cylinder 4.

The metal wire W is a linear metal that adjusts the components of the molten metal 8 and the like. For example, as its components, a material containing calcium and silicon for deoxidation, and calcium and aluminum for desulfurization. A material containing the above can be used. Then, a material containing sulfur can be used to stabilize the molten steel component, and a material containing carbon can be used to fine-tune the molten metal component. Further, for cast iron, a material containing magnesium, silicon, iron or the like can be used for desulfurization or spheroidization. Further, as the metal wire W, a solid wire made of only these materials can be used, but it is preferable that these materials are cored wires tightly coated with a thin steel plate or the like. As the metal wire W, one kind or a combination of two or more kinds of the above materials can be used depending on the purpose.

1 ... Ladle body 11 ... Opening 2 ... Lid body 21 ... Lid body base 22 ... Flange part 23 ... Lid body exterior part 24 ... Lid body fireproof part 3 ...・ ・ Exhaust pipe 31 ・ ・ ・ First exhaust pipe 32 ・ ・ ・ Second exhaust pipe 33 ・ ・ ・ Void 34 ・ ・ ・ Third exhaust pipe 4 ・ ・ ・ Guide cylinder 5 ・ ・ ・ Air supply part 6 Dust collector 7 ... Wire transmitter 71 ... Drive source 72 ... First roller 73 ... Second roller 8 ... Molten metal S ... Space W ... Metal wire

Claims (4)

The main body of the ladle that houses the molten metal inside,
A lid covering the opening of the ladle body is provided.
The lid body is provided with an exhaust stack for discharging a substance generated by supplying a metal wire to the molten metal from the ladle body.
A guide cylinder for guiding the metal wire is provided inside the exhaust pipe .
The exhaust stack is characterized by including a first exhaust stack erected on the lid and a second exhaust stack separately from the first exhaust stack and internally provided with the first exhaust stack. Wire processing equipment. The wire processing apparatus according to claim 1, further comprising an air supply unit that sends gas from one end of the guide cylinder into which the metal wire is to be inserted toward the other end of the guide cylinder located on the lid side. .. The wire processing apparatus according to claim 1 or 2 , further comprising a dust collector that sucks the substance generated by supplying the metal wire to the molten metal through the exhaust stack . A dust collector for sucking the substance generated by supplying the metal wire to the molten metal through the exhaust stack is provided.
The wire processing apparatus according to claim 1, further comprising a gap capable of sucking outside air between the first exhaust stack and the second exhaust stack .

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