KR20210028506A - Fine iron carrier charging device and method for manufacturing the same - Google Patents

Abstract

It provides a spectroscopic feeding device and a method of manufacturing the same. The spectroscopic feeding device according to the present invention includes a plurality of insulation boards installed at set intervals on the inner circumferential surface of the steel skin, an anchor device fixedly coupled to the inner surface of the steel skin and protruding to the inside of the insulation board, and casting on the inside of the insulation board And a refractory material for embedding the anchor device.

Description

Spectroscopic charge charging device and its manufacturing method TECHNICAL FIELD [FINE IRON CARRIER CHARGING DEVICE AND METHOD FOR MANUFACTURING THE SAME}

The present invention relates to a spectroscopic feeding device and a method of manufacturing the same.

In general, in the Finex process, a plurality of spectral gas charging devices are installed at the lower end of the last flow reduction furnace among the plurality of flow reduction furnaces, have a set length, and are composed of several ducts, all of which are treated with refractory materials inside. .

This spectroscopic feed charging device is for charging into a high-temperature reduced iron storage facility that stores and ejects reduced powdered iron ore (DRI) through the last flow reduction furnace.

The duct of the spectroscopic gas feeding device must have heat resistance without adhering to the device because the reduced reduced iron is transported at a high temperature at a high reduction rate.

In addition, the duct of the spectroscopic transport charging device must be equipped with abrasion resistance and durability without cracking or cracking of the duct because the reduced iron is transported under high pressure.

However, since the spectroscopic feed charging device is forced to give considerable blows and thermal shock to the duct while the high-temperature and high-pressure powdered reduced iron is sent, the lifespan has to be shortened by that amount.

In other words, the duct of the spectroscopic gas charging device is simply stacked by casting a refractory castable inside the insulation material after installing it with an insulating refractory castable on the outside.

When the high-temperature and high-pressure branched iron is sent to the duct of such a structure, it gives a physical and thermal shock to the refractory material, and the insulation material and the refractory material can be easily removed.

In addition, since an anchor for supporting the heat insulating material and the refractory material is not separately provided, the heat insulating material and the refractory material in the duct can be easily removed, and thus, a problem of clogging of the duct due to the dropping of the refractory material occurs.

Due to this, the reduced-cut iron impacts the insulation material and easily breaks the insulation, and the iron shell that forms the outer surface of the duct is also broken, and the reduced-cut iron is sprayed to the outside, generating oxidation and flame, which can lead to a serious unexpected situation. There was a problem that the operation was stopped.

The present invention is a spectroscopic gas charging device capable of maximally prolonging the life of the high-temperature powder reduced iron (DRI) reduced in the final flow reduction furnace even with thermal shock and pressure fluctuations generated in the process of passing through the spectroscopic gas charging device. And it is intended to provide a manufacturing method.

The spectral transport charging device according to an embodiment of the present invention is composed of several ducts having a set length, and the duct includes a cylindrical iron skin forming an outer shape, a plurality of insulation boards installed at set intervals on the inner circumferential surface of the iron skin. can do.

In addition, the spectral transport charging device, one end is fixedly coupled to the inner surface of the steel shell and the other end protrudes toward the center of the duct, and the anchor device disposed between the insulating board and the insulating board, and the anchor device of the insulating board while embedding. It is disposed on the inside and may include a refractory material supported by the anchor device.

The anchor device may include a fixing part fixedly coupled to the inner surface of the iron shell, and an anchor part and a second anchor part branching at a set angle from one end of the fixing part and buried in a refractory material.

The first anchor portion and the second anchor portion may have a structure that is separated from one end of the fixing portion at an arbitrary angle.

A flange having a coupling hole for coupling with another iron shell may be installed on the outer surface of one end or both ends of the iron skin.

At one end of the first anchor portion and the second anchor portion, a first cap member and a second cap member for firmly fixing the refractory material while melting at a set temperature may be installed, respectively.

A plurality of anchor devices are disposed at an arbitrary interval along the circumferential direction and the length direction of the duct, and the arrangement directions of the anchor devices may be alternately disposed along the circumferential direction and the length direction of the duct.

The manufacturing method of the spectroscopic feeding device may include a duct cutting step of cutting the duct into at least two unit duct portions with a set unit length.

In addition, in the manufacturing method of the spectroscopic conveyance charging device, in the anchor device including a fixing part, and a 1st anchor part and a 2nd anchor part branching at an arbitrary interval from the fixing part, the fixing part changes the outer shape of a unit duct part. It may include an anchor device coupling step of fixedly coupled to the inner circumferential surface of the iron skin formed at a set interval.

The manufacturing method of the spectral transport charging device is the step of attaching the insulation board to the inner circumferential surface of the steel skin after placing the insulation board between the fixing part and the fixing part, and connecting the unit duct part and the unit duct part in a straight line by welding. It may include a duct manufacturing step of manufacturing a duct of a set length.

In addition, the manufacturing method of the spectroscopic feeding device includes a mold insertion step of inserting a mold for manufacturing an inner diameter of a cylindrical duct having a set size inside the duct manufactured in the duct manufacturing step, and in the space between the insulation board and the mold inside the duct. It may include a refractory material casting step of casting the refractory material to bury the first anchor part and the second anchor part.

The step of attaching the insulation board may include a step of applying a moisture barrier to the exposed surface of the insulation board attached to the inner circumferential surface of the iron skin.

The duct manufacturing step may include a step of aligning the straightness and horizontality of the unit duct portion after arranging the unit duct portion and the unit duct portion on a straight line before executing the duct manufacturing step.

Before performing the mold inserting step, it may include a duct standing step of erecting the duct manufactured in the duct manufacturing step in a direction perpendicular to the installation surface.

The mold inserting step may include a mold centering step of aligning the center of the duct and the mold after inserting the mold into the duct.

According to an embodiment of the present invention, the high-temperature reduced iron (DRI) reduced in the final flow reduction furnace hardly undergoes deformation even during thermal shock and pressure fluctuations occurring in the process of passing through the spectroscopic feeding device, and the lifespan can be extended as much as possible. have.

Accordingly, it is possible to prevent the refractory material from falling off from the inside of the duct and the duct from being clogged, and it is possible to prevent the cracking of the refractory material and the iron skin in advance, thereby preventing a serious unexpected situation during operation of the spectral transport charging device. Therefore, it is possible to prevent the operation of the Finex process from being stopped in advance.

1 is a schematic configuration diagram for explaining an application portion of a spectroscopic feeding device according to an embodiment of the present invention.
FIG. 2 is a partial cross-sectional view of a duct in the radial direction of the spectroscopic feeding device according to an embodiment of the present invention, and is a cross-sectional view taken along line II-II of FIG. 1.
3 is a partial cross-sectional view in the longitudinal direction of the duct of the spectroscopic feeding device according to an embodiment of the present invention.
4 is a schematic flowchart of a method of manufacturing a spectroscopic feeding device according to an embodiment of the present invention.
5 is a schematic configuration diagram showing a method of manufacturing a spectroscopic feeding device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. As those of ordinary skill in the art to which the present invention pertains can be easily understood, the following embodiments may be modified in various forms without departing from the concept and scope of the present invention. As far as possible, the same or similar parts are indicated using the same reference numerals in the drawings.

The terminology used below is only for referring to specific embodiments, and is not intended to limit the present invention. Singular forms as used herein also include plural forms unless the phrases clearly indicate the opposite. As used in the specification, the meaning of "comprising" specifies a specific characteristic, region, integer, step, action, element and/or component, and other specific characteristic, region, integer, step, action, element, component and/or group It does not exclude the existence or addition of

All terms including technical and scientific terms used below have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. The terms defined in the dictionary are further interpreted as having a meaning consistent with the related technical literature and the presently disclosed content, and are not interpreted in an ideal or very formal meaning unless defined.

1 is a schematic configuration diagram for explaining an application portion of a spectroscopic feeding device according to an embodiment of the present invention.

2 is a partial cross-sectional view of a duct in the radial direction of the spectral transport charging device according to an embodiment of the present invention, and is a cross-sectional view taken along line II-II of FIG. 1, and FIG. 3 is a duct of the spectral transport charging device according to an embodiment of the present invention Is a partial cross-sectional view in the longitudinal direction.

1 to 3, the spectroscopic feeding device 20 according to an embodiment of the present invention is reduced after passing through the last flow reduction furnace 11 among a plurality of flow reduction furnaces 11, 12, 13 It is for charging the powdered iron ore (DRI: Direct Reduced Iron) to the high-temperature powdered reduced iron storage facility 30 that stores and ejects.

In FIG. 1, reference numeral 40 denotes a compacting device, and 50 denotes a melting gasification furnace. In addition, the dotted arrow indicates the reducing gas flow, and the solid arrow indicates the ore flow.

The spectroscopic feeding device 20 includes several ducts 100 having a set length, and several ducts 100 may be connected according to a required length.

The duct 100 may include a cylindrical steel shell 110 forming an outer shape and empty inside, and a plurality of insulating boards 120 that are in close contact with the inner circumferential surface of the iron shell 110 at set intervals.

For example, the insulation board 120 may take a form made by segmenting a cylindrical tube at arbitrary intervals along the circumferential direction corresponding to the outer shape of the iron skin 110.

In addition, the duct 100 has one end fixedly coupled to the inner circumferential surface of the iron skin 110 and the other end protrudes to the inside of the insulating board 120, and an anchor disposed between the insulating board 120 and the insulating board 120 Device 200 may be included.

In addition, the duct 100 is cast on the inner side of the insulation board 120 and is supported by the anchor device 200 by embedding the anchor device 200, and a cylindrical refractory material having an inner diameter of a set size (Refractory Castable) ( 130).

Flanges 300 for coupling with other iron skins 110 may be installed on the outer surfaces of one end or both ends of the iron skin 110.

The flange 300 may have a coupling hole 310 through which a bolt (not shown) for fixed coupling with the flange 300 of the other steel shell 110 may be coupled.

The iron skin 110 has a cylindrical shape, etc., has a structure in which the inside is emptied, and may have an inner diameter of a set size.

The insulation board 120 has a set size (thickness, length, height), and may be attached to the inner surface of the iron skin 110 by an adhesive or the like.

The insulation board 120 may be made of a material capable of withstanding a high temperature higher than a set temperature (eg, 1000° C.).

In addition, as shown in FIG. 2, the plurality of insulation boards 120 may be disposed at a set interval on the inner circumferential surface of the iron skin 110 when viewed based on a cross section perpendicular to the length direction of the duct 100.

As shown in FIG. 3, the insulation board 120 extends long along the longitudinal direction (X direction of FIG. 3) of the iron skin 110 when viewed with respect to a cross section along the length direction of the duct 100.

The insulating board 120 may have a trapezoidal shape in which an arc of an outer circumferential surface is larger than an arc of an inner circumferential surface, as shown in FIG. 2.

A moisture barrier material such as a paint may be applied to the surface of the insulation board 120 to block moisture.

In addition, the anchor device 200 may be made of a material capable of withstanding a high temperature equal to or higher than a set temperature (eg, 1000° C.).

In addition, the anchor device 200 may be disposed between the insulation board 120 and the insulation board 120 as shown in FIG. 2.

A plurality of anchor devices 200 may be disposed at set intervals along the length direction (X direction of FIG. 3) of the insulation board 120, and are located at one point of the insulation board 120 along the circumference of the duct 100. Also, a plurality of arrangements may be made.

The anchor device 200 is branched at a set angle from the fixed part 210 fixedly coupled to the inner surface of the iron shell 110 by welding or the like, and one end of the fixed part 210, and is buried in the refractory material 130 to insulate A first anchor unit 220 and a second anchor unit 230 for fixing the position of the board 120 and preventing the refractory material 130 from falling off may be included.

The fixing part 210 may include a coupling flange 211 to increase the coupling area with the inner circumferential surface of the iron skin 110 by being connected to one end of the fixing part 210 vertically and in contact with the inner circumferential surface of the iron skin 110 have.

The first anchor unit 220 and the second anchor unit 230 may be branched at an angle of 90 degrees from one end of the fixing unit 210 in order to effectively prevent the refractory material 130 from falling off. Accordingly, the anchor device 200 may have a Y-shaped structure as a whole.

In the above, the angle between the first anchor unit 220 and the second anchor unit 230 is not necessarily limited to 90 degrees. This angle may be appropriately adjusted within a range in which the anchor device 200 supports the refractory material 130 and prevents it from falling off.

As described above, the anchor device 200 may be disposed in plurality along the circumference of the duct 100 at random intervals, in which case, the anchor device 200 is alternately arranged in different directions. Can be.

For example, as shown in FIG. 2, in a state in which three anchor devices 200 are arranged at intervals (eg, 120 degrees) to show a Y-shape, the other three anchor devices 200 have a Y-shape. It may be arranged to show a straight shape between the anchor device 200 of.

That is, the straight anchor device 200 is in a state in which the Y-shaped anchor device 200 is rotated by 90 degrees in a clockwise (or counterclockwise) direction.

The straight anchor device 200 may also be disposed between the Y-shaped anchor device 200 at an interval of 120 degrees, and accordingly, the Y-shaped anchor device 200 and the straight anchor device 200 Between them can achieve an angle of 60 degrees.

Furthermore, as shown in FIG. 3, the Y-shaped anchor device 200 and the straight-shaped anchor device 200 may be alternately disposed along the longitudinal direction X of the duct 100.

The configuration and arrangement of the anchor device 200 can be expected to effectively prevent the refractory material 130 from falling off.

Meanwhile, at one end of the first anchor unit 220 and the second anchor unit 230, when the temperature reaches a set temperature, the refractory material 130 is melted by the first anchor unit 220 and the second anchor unit 230. A first cap member 221 and a second cap member 231 may be installed respectively to securely fix the device.

The first cap member 221 and the second cap member 231 may be made of a material such as rubber that can be easily melted when the temperature reaches a set temperature.

Hereinafter, with reference to FIGS. 1 to 3, the operation of the spectroscopic feeding device according to an embodiment of the present invention will be described.

First, the insulating board 120 having a set size is on the inner circumferential surface of the iron skin 110 forming the outer shape of the duct 100 of the spectroscopic feeding device 20 in the radial direction and the length direction of the duct 100 (X in FIG. 3 ). A plurality of installations are installed at intervals set in (direction). That is, the insulation board 120 is attached to the inner circumferential surface of the iron skin 110 by an adhesive or the like.

In addition, the anchor device 200 disposed between the insulating board 120 and the insulating board 120 is fixed to the iron shell 110 by coupling the fixing part 210 to the inner circumferential surface of the iron shell 110 by welding or the like.

At this time, the first anchor portion 220 and the second anchor portion 230 of the anchor device 200 maintain a state protruding toward the inner side of the insulation board 120, that is, the central portion of the duct 100.

In this state, after inserting a mold (not shown) for manufacturing the inner diameter of the duct 100 into the center of the duct 100, the refractory material 130 is injected into the space between the insulation board 120 and the mold, and the duct 100 To manufacture the inner diameter of.

At this time, when the refractory material 130 is injected into the space between the heat insulating board 120 and the mold and cast, the first anchor part 220 and the second anchor part 230 of the anchor device 200 are attached to the refractory material 130. It is buried.

In this way, as the first anchor part 220 and the second anchor part 230 are buried in the refractory material 130, the refractory material 130 is formed by the first anchor part 220 and the second anchor part 230. It is firmly supported, and the insulation board 120 is fixed by a fixing part 210 and a coupling flange 211 installed on the inner circumferential surface of the iron skin 110.

After the mold is removed from the inside of the duct 100, the inner diameter of the duct 100 may be made.

The anchor device 200 is a fixing part 210 fixedly coupled to the inner surface of the iron shell 110 by welding, a first anchor branched at a set angle from one end of the fixing part 210 and buried in the refractory material 130 Since the part 220 and the second anchor part 230 are included, the position of the insulation board 120 is firmly fixed, and the refractory material 130 may be prevented from falling off from the iron shell 110.

The first anchor unit 220 and the second anchor unit 230 have a structure that is opened in a Y-shape at 90 degrees from one end of the fixing unit 210, so that the refractory material 130 is removed from the iron shell 110. Can be prevented.

In addition, at one end of the first anchor unit 220 and the second anchor unit 230, a first cap member 221 and a second cap member 231 made of a material such as rubber that can be melted when the temperature reaches a set temperature. ) Are installed respectively, so that the refractory material 130 can be firmly fixed by the first anchor unit 220 and the second anchor unit 230.

The first anchor part 220 and the second anchor part 230 are welded at an angle of 90 degrees from one end of the fixing part 210, that is, in a state that is open in a perpendicular direction to each other, so that the refractory material 130 can be prevented from falling off. Therefore, it is possible to prevent the cracking phenomenon of the refractory material 130 and the iron shell 110 in advance, and it is possible to prevent the operation of the spectroscopic transport charging device from being stopped.

In other words, since the refractory material 130 can be prevented from falling off by the spectroscopic gas charging device 20 of the present application, the high-temperature, high-pressure powdered reduced iron (DRI) reduced in the final flow reduction furnace 11 is stored in the high-temperature powdered reduced iron. It can be smoothly charged to the facility 30.

In addition, even if thermal shock and pressure fluctuations occur in the process of the high-temperature partial reduced iron (DRI) reduced in the final flow reduction furnace 11 passing through the spectroscopic gas charging device 20 of the present application, deformation does not occur, and thus the spectroscopic gas charging device (20) can extend its life as much as possible.

The manufacturing method of the spectroscopic feed charging device according to an embodiment of the present invention is the same as the matters described in the spectroscopic feed charging device according to an embodiment of the present invention, except for the matters specifically described below, a detailed description thereof will be omitted.

In the manufacturing method of the spectroscopic feeding device according to an embodiment of the present invention, the duct 100 is divided into at least two unit duct portions 101 and 103 with a set unit length so that an operator can easily work inside. It may include a duct cutting step (S10) to cut (see FIG. 4A).

The manufacturing method of the spectroscopic feeding device is a combination of an anchor device in which the fixing part 210 of the anchor device 200 is fixedly coupled to the inner circumferential surface of the iron shell 110 forming the outer shape of the unit duct parts 101 and 103 at a set interval. It may include a step (S20) (see Fig. 4b).

The anchor device 200 of the anchor device coupling step (S20) comprises the first fixing part 210 and the entire shape of the anchor device 200 branching from the fixing part 210 at an arbitrary interval in a Y-shape. An anchor unit 220 and second anchor units 220 and 230 may be included.

In addition, in the manufacturing method of the spectroscopic feeding device, the insulation board 120 is provided between the fixing part 210 of the anchor device 200 and the fixing part 210 of the anchor device 200 as unit duct parts 101 and 103. After arranging in the longitudinal direction (X direction of FIG. 5), the insulation board attaching step (S30) of attaching the insulation board 120 to the inner surface of the iron skin 110 by an adhesive or the like may be included (see FIG. 4B ). ).

The manufacturing method of the spectroscopic feeding device may include a duct manufacturing step (S40) of manufacturing a duct 100 having a set length by connecting the unit duct unit 101 and the unit duct unit 103 in a straight line by welding or the like. Yes (see Fig. 4c).

In addition, the manufacturing method of the spectroscopic feeding device is a mold for manufacturing the inner diameter of the cylindrical duct 100 having a diameter and length of a size set inside the duct 100 manufactured in the duct manufacturing step (S40) (not shown) It may include a mold inserting step (S50) to insert the city).

The manufacturing method of the spectroscopic feeding device is, after inserting the mold into the duct 100 in the mold inserting step (S50), the fireproof material 130 in the space between the insulation board 120 and the mold inside the duct 100 It may include a refractory casting step (S60) of embedding the first anchor unit 220 and the second anchor unit 230 by casting (see FIG. 4D ).

And, the manufacturing method of the spectroscopic feeding device may include a mold removing step (S70) of removing the mold from the inside of the duct 100 after performing the refractory casting step (S60).

In the duct cutting step S10, the duct 100 having a set length may be cut into two or more unit duct portions 101 and 103 using plasma or the like.

In this way, cutting into the unit duct parts 101 and 103 is performed by the operator in order to fix the anchor device 200 to the inner surface of the unit duct parts 101 and 103 in the anchor device coupling step (S20). It is to easily enter the interior of the duct 100 of the duct portion (101, 103).

In addition, cutting into the unit duct portions 101 and 103 is for easily discharging welding fumes generated by welding or the like when the anchor device 200 is fixedly coupled.

In the anchor device coupling step (S20), the anchor device 200 may be fixedly coupled to the inner surfaces of the unit duct portions 101 and 103 by welding or the like.

As shown in FIG. 2, a plurality of anchor devices 200 may be disposed on the inner circumferential surfaces of the unit duct portions 101 and 103 at a set interval when viewed from the cross section in the radial direction of the unit duct portions 101 and 103.

In addition, as shown in FIG. 3, the anchor device 200 is in the longitudinal direction (X direction of FIG. 3) of the unit duct parts 101 and 103 when viewed from the longitudinal cross section of the unit duct parts 101 and 103. A plurality of arrangements may be made according to the set interval.

The anchor device 200 includes a fixing part 210 fixedly coupled to the inner surface of the iron shell 110 by welding or the like, and a first anchor part 220 branching from one end of the fixing part 210 at a set angle. It may include 2 anchor parts 230.

In the anchor device coupling step (S20), one end of the fixing part 210 of the anchor device 200 may be fixedly coupled to the inner circumferential surface of the iron shell 110.

At this time, the first anchor part 220 and the second anchor part 230 of the anchor device 200 are 90 from one end of the fixing part 210 when viewed from the radial cross section of the unit duct parts 101 and 103. In a state where the road is opened in a Y-shape, it extends to the center of the unit ducts 101 and 103.

Insulation board attaching step (S30) may include a moisture barrier coating step (S31) of applying a moisture barrier material to block moisture on the exposed surface of the insulation board 120 attached to the inner circumferential surface of the iron skin (110).

The duct manufacturing step (S40) is arranged on a straight line so that the end portions of the unit duct unit 101 and the unit duct unit 103 are in contact using a convex chain and a floor support before executing the duct manufacturing step (S40). After the unit ducts 101 and 103 may include a straightness and a horizontality alignment step (S41) of matching the straightness and the horizontality.

Before performing the mold inserting step (S50), it may include a duct standing step (S51) of erecting the duct 100 manufactured in the duct manufacturing step (S40) in a vertical direction with respect to the installation surface.

In this way, erecting the duct 100 in the duct erecting step (S51) is to erect the duct 100 manufactured by connecting the two unit duct portions 101 and 103 vertically to the installation surface and cast it at a time. This is because it is possible to remove the step difference by improving the straightness of the refractory material 130 cast inside the duct 100.

The mold inserting step (S50) includes a mold centering step (S52) of aligning the center of the duct 100 with the mold after inserting a mold (not shown) for manufacturing the inner diameter of the duct 100 into the inside of the duct 100. I can.

In this way, the duct 100 manufactured in the method of manufacturing the spectroscopic feed charging device of the present invention can minimize the damage to the refractory material 130 so as to reduce the friction of the divided iron during operation.

In addition, the duct 100 of the set length manufactured in this way is installed on the outer surface of the duct 100, and a plurality of ducts 100 are connected to the coupling hole 310 of the flange 300 using bolts, etc. can do.

Although the present disclosure has been described through preferred embodiments as described above, the present invention is not limited thereto, and various modifications and variations are possible without departing from the scope of the following claims. Those in the field will understand easily.

100: duct
101, 103: unit duct part
200: anchor device
210: fixing part
220, 230: first and second anchor portions
300: flange

Claims (11)

It consists of several ducts with a set length,
The duct,
Cylindrical iron skin forming the outer shape,
A plurality of insulation boards installed at set intervals on the inner circumferential surface of the iron skin,
One end is fixedly coupled to the inner surface of the iron shell and the other end protrudes toward the center of the duct, and an anchor device disposed between the insulation board and the insulation board, and
A refractory material disposed inside the heat insulating board while embedding the anchor device and supported by the anchor device
Spectroscopic beam charging device comprising a. The method of claim 1,
The anchor device,
A fixing part fixedly coupled to the inner surface of the iron skin, and
A spectroscopic feeding device including a first anchor portion and a second anchor portion branched from one end portion of the fixing portion at a set angle and buried in the refractory material. The method of claim 2,
The first anchor portion and the second anchor portion is a spectroscopic transport charging device having a structure that is opened at an arbitrary angle from one end portion of the fixing portion. The method of claim 1,
A spectral transport charging device in which a flange having a coupling hole for coupling with another iron shell is installed on an outer surface of one end or both ends of the iron skin. The method of claim 3,
A spectroscopic feeding device in which a first cap member and a second cap member are respectively installed at one end of the first anchor part and the second anchor part to firmly fix the refractory material while melting at a set temperature. The method of claim 3,
The anchor device is disposed in plurality at random intervals along the circumferential direction and the length direction of the duct,
The disposition direction of the anchor device is a spectral feed charging device that is alternately disposed along the circumferential direction and the length direction of the duct. A duct cutting step of cutting the duct into at least two unit ducts with a set unit length,
In an anchor device comprising a fixing part, and a first anchor part and a second anchor part branching from the fixing part at an arbitrary angle, the fixing part at a set interval on the inner circumferential surface of the iron shell forming the outer shape of the unit duct part. Anchor device coupling step for fixedly coupling,
After arranging the insulation board between the fixing part and the fixing part, the insulation board attaching step of attaching the insulation board to the inner circumferential surface of the iron skin,
Duct manufacturing step of manufacturing a duct having a set length by connecting the unit duct part and the unit duct part in a straight line by welding,
A mold inserting step of inserting a mold for manufacturing an inner diameter of the duct having a cylindrical shape set inside the duct manufactured in the duct manufacturing step, and
Refractory casting step of burying the first anchor part and the second anchor part by casting a refractory material in the space between the insulation board and the mold inside the duct
A method of manufacturing a spectroscopic beam charging device comprising a. The method of claim 7,
The step of attaching the insulation board comprises applying a moisture barrier material to the exposed surface of the insulation board attached to the inner circumferential surface of the iron skin. The method of claim 7,
The duct manufacturing step includes a straightness and horizontality alignment step of aligning the straightness and horizontality of the unit duct part after arranging the unit duct part and the unit duct part on a straight line before executing the duct manufacturing step. Method of manufacturing a spectroscopic beam charging device. The method of claim 7,
Before performing the mold inserting step, a method of manufacturing a spectroscopic conveyance charging device comprising a duct standing step of standing upright in a direction perpendicular to an installation surface of the duct manufactured in the duct manufacturing step. The method of claim 10,
The mold inserting step includes a mold centering step of aligning the center of the duct with the mold after inserting the mold into the duct.

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