KR20200075572A - Manufacturing apparatus of briquette, manufacturing method of briquette, manufacturing apparatus of molten iron and briquette - Google Patents

Abstract

Introduced is a briquette manufacturing apparatus comprising: a compacted iron providing unit supplying a plate-shaped compacted iron downward; a coal briquette providing unit supplying a plate-shaped coal briquette downward; a resin material providing unit supplying a sheet-shaped resin material between the compacted iron and the coal briquette; and a briquette manufacturing unit comprising a pair of forming rolls, and compressing the compacted iron and the coal briquette, which are disposed on both sides of the resin material, to manufacture the briquette. According to the apparatus for manufacturing the briquette of the present invention, existing fuel/raw material mixing facilities and charging facilities for distribution control may not be required.

Description

Briquette manufacturing equipment, briquette manufacturing method, charter manufacturing equipment, and briquettes

The present invention relates to a briquette manufacturing apparatus, a briquette manufacturing method, a molten iron manufacturing apparatus and a briquette. More specifically, it is located between a compacted body part containing reduced iron on one side, a coal briquette part containing fuel on the other side, and a compacted body part and a coal briquette part. It relates to an apparatus, a method, and a molten iron manufacturing apparatus using the same.

In the process of manufacturing molten iron for hot metal, unlike the Blast Furnace method, the FINEX process is a soft/raw material that can be loaded into the reactor without pre-processing of raw/raw materials that must exist alone, such as chemical conversion and sintering. Production processes are in operation.

In the case of iron ore as a raw material, HCI (Hot Compacted Iron) formed by reducing iron, a hot iron powder ore passing through a flow path for preliminary reduction, and coal that acts as a heat source and a reducing agent are uniformly crushed, mixed with a binder, and then coal briquette equipment It is prepared in the form of agglomerates.

Subsequently, the compacted body and coal briquettes are charged into a molten gasification furnace which is a reaction furnace through a charging device, and oxygen is blown to burn coal briquettes to produce molten iron through reduction from iron ore, and at the same time generate high-temperature combustion gas.

The high-temperature combustion gas is converted into a reducing gas and fed back to the flow reduction furnace for preliminarily reducing the iron ore. The mixed charge of the compacted material and coal briquettes must be charged in the reactor through uniform mixing at a certain ratio, and this is controlled by indirect monitoring to detect the real-time distribution state through the charging device.

In the macroscopic view, the mixing charge of the compacted body and the coal briquettes can be seen as a mixture of dissimilar powders, and may affect the physicochemical reaction rate of the mixture according to the uniform distribution of the distribution in the powder mixing. .

Fundamentally, mixing of heterogeneous powders is limited in securing a uniform distribution, so if a heterogeneous material is prepared as one powder, a stable reaction through an ideal distribution can be expected. Of course, in order to be charged in a high-temperature molten gasifier, it must have a property of maintaining a strength above a certain level at room temperature and high temperature.

The existing FINEX soft/raw material manufacturing process is manufactured by separating the raw material compacted material and the fuel coal briquettes process, and using a swing type charging device to simply mix the two molded materials and charge them into the reaction furnace molten gasifier. .

The mixing uniformity of two molded bodies with different physical properties cannot be verified separately after charging in the furnace, and the distribution of the charge in the furnace itself can be indirectly controlled through the swing charging device, but uniform distribution control between the two molded bodies constituting the charge is expected. There is a problem that it is difficult to do.

Briquettes consisting of a compacted body part containing reduced iron on one side, a coal briquette part containing fuel on the other side, and a compacted body part and a coal briquette part, and a briquette composed of a resin part integrally joining the compacted body part and the coal briquette, and an apparatus, method, and method for manufacturing the same Provided is a molten iron manufacturing apparatus using the same.

Briquette according to an embodiment of the present invention includes a compacted body containing reduced iron; Coal briquettes containing fuel; And a resin portion positioned between the compacted body portion and the coal briquette portion, and integrally bonding the compacted body portion and the coal briquette portion.

Briquette manufacturing apparatus according to an embodiment of the present invention provides a compacted material providing unit for supplying the compacted material in the form of a plate downward; A coal briquette providing unit for supplying coal briquettes in a plate form downward; A resin material providing unit for supplying a sheet-shaped resin material between the compacted body and the coal briquettes; And a briquette manufacturing unit including a pair of forming rolls and compressing and compacting the compacts and coal briquettes disposed on both sides of the resin material to produce a briquette.

The compacted material providing unit includes a first storage unit in which a first raw material containing reduced iron is stored; And a pair of first compression rolls positioned below the first storage portion and positioned above the forming rolls.

The coal briquette providing unit includes a second storage unit in which a second raw material containing fuel is stored; And a pair of second compression rolls positioned below the second storage portion and positioned above the forming rolls.

The outer surfaces of the first compression roll and the second compression roll may have a flat shape.

The resin material providing unit may include a supply roll for supplying the resin material downwardly between the first compression roll and the second compression roll.

A plurality of intaglio portions may be formed on the outer circumferential surface of the forming roll.

The briquette manufacturing unit may further include; a hydraulic machine for adjusting the gap between the pair of forming rolls.

It may further include a guide unit for guiding the compacted body and the coal briquettes between the pair of molding rolls.

An apparatus for manufacturing molten iron according to an embodiment of the present invention includes a compacted body providing unit for supplying a compacted material in the form of a plate downward; A coal briquette providing unit for supplying coal briquettes in a plate form downward; A resin material providing unit for supplying a sheet-shaped resin material between the compacted body and the coal briquettes; A briquette manufacturing unit including a pair of forming rolls and compressing and compacting the compacts and coal briquettes disposed on both sides of the resin material to produce a briquette; And a molten gasifier disposed below the briquette manufacturing unit.

Briquette manufacturing method according to an embodiment of the present invention comprises the steps of manufacturing a compact in the form of a plate and supplying it downward; Preparing a coal briquette in a plate form and supplying it downward; Supplying a sheet-shaped resin material between the compacted body and the coal briquettes; And compressing and compacting the compacts and coal briquettes disposed on both sides of the resin material by using a pair of molding rolls.

In the step of manufacturing and supplying the compacted material, the compacted material may be prepared by compressing the first raw material containing reduced iron through a pair of first compression rolls having a flat outer circumferential surface.

In the step of manufacturing and supplying the coal briquettes, the coal briquettes may be manufactured by compressing a second raw material containing fuel through a pair of second compression rolls having a flat outer circumferential surface.

In the step of supplying the resin material, the resin material may include a thermoplastic resin.

In the step of manufacturing the briquette, compression molding may be performed at a temperature of 150 to 300°C.

In the step of manufacturing the briquette, a plurality of intaglio portions are formed on the outer circumferential surface of the forming roll, and as a result, the briquette corresponding to the shape of the intaglio portion can be manufactured by compression molding the compact and coal briquettes disposed on both sides of the resin material.

According to the briquette manufacturing apparatus according to an embodiment of the present invention, an existing soft/raw material mixing facility and a charging facility for distribution control may not be required. The resin material enables physical bonding of the compact and the coal briquettes to a briquette that is a single molded body, so that a single particle is distributed on both sides of the briquette. Therefore, it can be expected that a single particle has a reactive substance and a reacted substance at the same time, and thus an ideal distribution is expected.

In addition, the distribution of the materials in the molten gas furnace can be very ideally distributed regardless of the distribution control charge, which can lead to the omission of the mixing facility and the distribution control charging facility. This can be expected to be more flexible due to the reduction in investment costs such as charging facilities and the opening of refueling inspection facilities.

1 is a view schematically showing a briquette manufacturing apparatus according to an embodiment of the present invention.
2 is a view schematically showing a briquette manufacturing apparatus according to an embodiment of the present invention.
3 is a diagram schematically showing an apparatus for manufacturing molten iron according to an embodiment of the present invention.
4 is a view showing a briquette according to an embodiment of the present invention.

Terms such as first, second and third are used to describe various parts, components, regions, layers and/or sections, but are not limited thereto. These terms are only used to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, a first portion, component, region, layer or section described below may be referred to as a second portion, component, region, layer or section without departing from the scope of the present invention.

The terminology used herein is only to refer to a specific embodiment and is not intended to limit the invention. The singular forms used herein also include plural forms unless the phrases clearly indicate the opposite. As used herein, the meaning of “comprising” embodies a particular property, region, integer, step, action, element, and/or component, and the presence or presence of another property, region, integer, step, action, element, and/or component. It does not exclude addition.

When one part is said to be "on" or "on" another part, it may be directly on or on the other part, or another part may be involved therebetween. In contrast, if one part is said to be "just above" another part, no other part is interposed therebetween.

Although not defined differently, all terms including technical terms and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention pertains.

Commonly used dictionary-defined terms are additionally interpreted as having meanings consistent with related technical documents and currently disclosed contents, and are not interpreted as ideal or very formal meanings unless defined.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art to which the present invention pertains can easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

Briquette Manufacturing equipment

Referring to Figure 1, the briquette manufacturing apparatus according to an embodiment of the present invention supplies the compacted material providing unit 100 for supplying the compacted material 10 in the form of a plate downward, and the coal briquettes 20 in the form of a plate in the downward direction. It includes a coal briquettes providing unit 200, a compacted material 10 and a resin material providing unit 300 for supplying a sheet-shaped resin material 30 between the coal briquettes 20 and a pair of molding rolls 410, It includes a briquette manufacturing unit 400 for producing a briquette 40 by compression molding the compacted body 10 and the coal briquettes 20 disposed on both sides of the resin material 30.

The compacted material providing unit 100 manufactures the compacted material 10 in the form of a plate using the first raw material containing reduced iron, and supplies it downward. The compacted material 10 in the form of a plate may be in a form in which bending is easy.

Specifically, the compacted material providing unit 100 is located below the first storage unit 110 and the first storage unit 110 in which the first raw material containing reduced iron is stored, and is located above the forming roll 410. It may include a pair of first compression roll (120).

A first raw material containing reduced iron is stored in the first storage unit 110, and the first raw material may be supplied between a pair of first compression rolls 120 positioned below. The pair of first compression rolls 120 can be compressed by receiving the first raw material to produce a compact 10 in the form of a plate. The pair of first compression rolls 120 are positioned above the forming rolls 410 to supply the compacted body 10 toward the forming rolls 410.

The supply speed of the compacted body 10 can be adjusted by adjusting the rotation speed of the first compression roll 120.

The outer circumferential surface of the first compression roll 120 is formed in a flat shape, and thus the compacted body 10 manufactured therefrom may also be manufactured in a plate shape in which the upper and lower surfaces are flat.

The coal briquette providing unit 200 manufactures coal briquette 20 in the form of a plate using a second raw material containing fuel, and supplies it downward. The coal briquette 20 in the form of a plate may be in the form of easy bending, like the compacted body 10.

Specifically, the coal briquette providing unit 200 is located below the second storage unit 210 and the second storage unit 210 in which the second raw material containing fuel is stored, and is located above the molding roll 410. A pair of second compression rolls 220 may be included.

In the second storage unit 210, a second raw material containing fuel such as coke and anthracite is stored, and the second raw material may be supplied between a pair of second compression rolls 220 positioned below. The pair of second compression rolls 220 may be compressed by receiving a second raw material to manufacture coal briquettes 20 in the form of a plate. The pair of second compression rolls 220 are positioned above the forming rolls 410 to supply the coal briquettes 20 toward the forming rolls 410.

The second compression roll 220 may be disposed in a shape parallel to the first compression roll 120 on the side of the first compression roll 120. In addition, the supply speed of the coal briquettes 20 may be adjusted by adjusting the rotation speed of the second compression roll 220.

The outer circumferential surface of the second compression roll 220 is formed in a flat shape, and thus the coal briquettes 20 manufactured therefrom may also be manufactured in a plate shape in which the upper and lower surfaces are flat.

The resin material providing unit 300 supplies the sheet-shaped resin material 30 between the compacted material 10 in the form of a plate material and the coal briquettes 20. Accordingly, the resin material 30 may be interposed between the compacted material 10 in the form of a plate and the coal briquette 20 by the forming roll 410. Specifically, the resin material providing unit 300 may include a supply roll 310 that supplies the resin material 30 downwardly between the first compression roll 120 and the second compression roll 220.

The supply roll 310 is disposed above the first compression roll 120 and the second compression roll 220, and is disposed in a central region in the upper direction, and the first compression roll 120 inside and the second compression roll inside. A sheet-shaped resin material 30 may be supplied between 220. Accordingly, the sheet-shaped resin material 30 can be supplied between the compacted material 10 in the form of a plate material and the coal briquettes 20. The resin material 30 may include a thermoplastic resin material.

The briquette manufacturing unit 400 includes a pair of forming rolls 410, and compresses the compacted body 10 and the coal briquettes 20 disposed on both sides of the resin material 30 to produce a briquette 40. . The pair of forming rolls 410 may be disposed below the first compression roll 120 and the second compression roll 220.

Specifically, a plurality of intaglio portions may be formed on the outer circumferential surface of the forming roll 410. The plurality of intaglio portions may be regularly formed on the outer circumferential surface of the forming roll 410 in the form of a pocket. Accordingly, when the compacted body 10 and the coal briquettes 20 disposed on both sides of the resin material 30 are integrally compressed, a briquette 40 having a shape corresponding to the shape of the intaglio portion may be manufactured.

Briquette 40 is located between the compacted part containing the reduced iron on one side, the coal briquette part containing the fuel on the other side, and the compacted body part and the coal briquette part, and may be composed of a resin part integrally joining the compacted body part and the coal briquette part.

The briquette manufacturing unit 400 may further include a hydraulic machine that adjusts the gap between the pair of forming rolls 410. Specifically, the hydraulic machine is connected to the rotating shaft of the forming roll 410 and operated in a horizontally moving form by hydraulic pressure, so that a gap between the pair of forming rolls 410 can be adjusted. Accordingly, the density of the briquette 40 can be adjusted.

Compression molding is performed at a temperature of 150 to 300°C by a pair of molding rolls 410 to compress the compacted body 10 and coal briquettes 20 as the resin material 30 is thermoset.

Referring to Figure 2, the briquette manufacturing apparatus according to an embodiment of the present invention may further include a guide unit 500 for guiding the compacted body 10 and the coal briquettes 20 between a pair of forming rolls 410. have.

The guide unit 500 may include a plurality of guide rolls 510 that guide the movement path of the compacted body 10 and the coal briquettes 20. By the arrangement of the guide roll 510, the compacted body 10 and the coal briquette 20, which are in the form of easy bending, can be naturally moved between the pair of molding rolls 410.

Charter manufacturing equipment

Referring to Figure 3, the molten iron manufacturing apparatus according to an embodiment of the present invention supplies the compacted body providing unit 100 for supplying the compacted material 10 in the form of a plate downward, and the coal briquette 20 in the form of a plate downward A resin material providing unit 300 for supplying a sheet-shaped resin material 30 between the coal briquettes providing unit 200, the compacted body 10, and the coal briquettes 20, and a pair of molding rolls 410, The briquette manufacturing unit 400 for manufacturing the briquette 40 by compression molding the compacted body 10 and the coal briquettes 20 disposed on both sides of the resin material 30 and the melt placed below the briquette manufacturing unit 400 It includes a gasifier 600.

The description by the compacted object providing unit 100, the coal briquette providing unit 200, the resin material providing unit 300, and the briquette manufacturing unit 400 will be replaced by the description of the briquette manufacturing apparatus described above.

The molten gasifier 600 is disposed below the briquette manufacturing unit 400, and the compacted body 10 containing reduced iron on one side from the briquette manufacturing unit 400, and the coal briquettes and compacted body parts containing fuel on the other side. Located between the coal briquettes portion, it is provided with a briquette (40) consisting of a resin portion for integrally bonding the compacted body and the coal briquettes.

Thus, the reduction and combustion reaction rates can be kept constant by preparing molten iron in the molten gasifier 600 through the briquette 40 in which the compacted body 10 and the coal briquettes 20 are uniformly distributed.

Existing lead/raw material mixing equipment and charging equipment for distribution control may not be required by the configuration of the molten iron manufacturing apparatus according to an embodiment of the present invention. The resin material 30 enables physical bonding of the compacted body 10 and the coal briquettes 20 to the briquette 40, which is one molded body, so that single particles are distributed on both sides of the briquette 40, respectively. Therefore, it can be expected that a single particle has a reactive substance and a reacted substance at the same time, and thus an ideal distribution is expected.

In addition, the distribution control of the charge in the molten gasification furnace 600 can irrespectively charge the distribution of raw materials and fuels, which can lead to the omission of mixing equipment and distribution control charging equipment. This can be expected to be more flexible due to the reduction of investment costs such as charging facilities and the opening of refueling inspection facilities.

Briquette Manufacturing method

Referring to Figure 4, the method of manufacturing a briquette according to an embodiment of the present invention is to produce a compact in the form of a plate and supply it downward, to produce a plate-shaped coal briquette and to supply it downward, between the compacted body and coal briquettes. The step of supplying a resin material in the form of a sheet and using a pair of molding rolls to produce a briquette by compression-molding compacts and coal briquettes disposed on both sides of the resin material.

First, in the step of manufacturing and supplying the compacted material, the compacted material in the form of a plate is manufactured using the first raw material containing reduced iron and supplied downward. The compacted material in the form of a plate may be in a form in which bending is easy.

Specifically, a compacted material in the form of a plate can be manufactured using a pair of first compression rolls positioned above the forming roll.

The supply speed of the compacted material can be controlled by adjusting the rotation speed of the first compression roll.

The outer circumferential surface of the first compression roll is formed in a flat shape, and thus the compacted body produced therefrom may also be manufactured in a plate shape in which the upper and lower surfaces are flat.

Next, in the step of manufacturing and supplying the compacted material, a coal briquette in the form of a plate is manufactured using a second raw material containing fuel, and supplied downward. The coal briquettes in the form of a plate may be in the form of easy bending, like a compacted body.

Specifically, it is possible to manufacture a coal briquette in the form of a plate using a pair of second compression rolls positioned above the forming roll.

The second compression roll may be disposed on the side of the first compression roll in a form parallel to the first compression roll. In addition, the supply speed of the coal briquettes can be adjusted by adjusting the rotation speed of the second compression roll.

The outer circumferential surface of the second compression roll is formed in a flat shape, and thus the coal briquettes manufactured therefrom may also be manufactured in a plate shape in which the upper and lower surfaces are flat.

Next, in the step of supplying the resin material, the sheet-shaped resin material is supplied between the compacted body and the coal briquettes. At this time, the resin material may include a thermoplastic resin. The resin material can be interposed between the compacted material in the form of plate and the coal briquettes by the forming roll.

Next, in the step of manufacturing the briquettes, the briquettes are manufactured by compression-molding compacts and coal briquettes disposed on both sides of the resin material using a pair of molding rolls.

Specifically, a plurality of intaglio portions may be formed on the outer circumferential surface of the forming roll. The plurality of intaglio portions may be regularly formed on the outer circumferential surface of the forming roll in the form of a pocket. Accordingly, when the compact and the coal briquettes disposed on both sides of the resin material are integrally compressed, a briquette having a shape corresponding to the shape of the intaglio portion can be manufactured.

The briquette is located between the compacted body part containing reduced iron on one side, the coal briquette part containing fuel on the other side, and the compacted body part and the coal briquette part, and may be composed of a resin part integrally joining the compacted body part and the coal briquette part.

The gap between the pair of forming rolls can be adjusted by a hydraulic machine. Specifically, the hydraulic machine is connected to the rotating shaft of the forming roll to operate in a horizontally moving form by hydraulic pressure so that the gap between the pair of forming rolls can be adjusted. Accordingly, the density of the briquette can be adjusted.

Compression molding is performed at a temperature of 150 to 300°C by a pair of molding rolls, so that the compacted material and the coal briquettes can be compressed as the resin material is thermally cured.

Briquette

The briquette according to an embodiment of the present invention is located between a compacted body part containing reduced iron, a coal briquette part containing fuel, and a compacted body part and a coal briquette part, and includes a resin part integrally joining the compacted body part and the coal briquette part.

The compacted body is located on one side of the briquette and contains reduced iron. The coal briquettes are located on the other side of the briquette and contain fuel. The resin portion is located between the compacted body portion and the coal briquette portion, and the compacted body portion and the coal briquette portion are integrally joined. The resin part may include a thermoplastic resin.

The briquette according to an embodiment of the present invention may be manufactured by a briquette manufacturing apparatus or a briquette manufacturing method according to an embodiment of the present invention. The resin material enables physical bonding of the compact and the coal briquettes to a briquette that is a single molded body, so that a single particle is distributed on both sides of the briquette. Therefore, it can be expected that a single particle has a reactive substance and a reacted substance at the same time, and thus an ideal distribution is expected.

The present invention is not limited to the above embodiments and/or embodiments, but may be manufactured in various different forms, and those skilled in the art to which the present invention pertains may change the technical spirit or essential features of the present invention. It will be understood that it may be practiced in other specific forms without. Therefore, it should be understood that the above-described embodiments and/or embodiments are illustrative in all respects and not restrictive.

10: compacted material 20: coal briquettes
30: resin material 40: briquette
100: compacted material providing unit 110: first storage unit
120: first compression roll 200: coal briquettes providing unit
210: second storage unit 220: second compression roll
300: resin material providing unit 310: supply roll
400: briquette manufacturing unit 410: forming roll
500: guide unit 510: guide roll
600: molten gasifier

Claims (16)

A compacted body part containing reduced iron;
Coal briquettes containing fuel; And
Briquette comprising a; located between the compacted body portion and the coal briquettes portion, a resin portion integrally bonding the compacted body and the coal briquettes. A compacted material providing unit for supplying the compacted material in the form of a plate downward;
A coal briquette providing unit for supplying coal briquettes in a plate form downward;
A resin material providing unit for supplying a sheet-shaped resin material between the compacted body and the coal briquettes; And
Briquette manufacturing apparatus comprising a; a pair of forming rolls, a briquette manufacturing unit for manufacturing a briquette by compression-molding compacts and coal briquettes disposed on both sides of the resin material. According to claim 2,
The compacted material providing unit,
A first storage unit in which the first raw material containing reduced iron is stored; And
Briquette manufacturing apparatus comprising; a pair of first compression rolls located below the first storage portion and located above the forming roll. According to claim 3,
The coal briquette providing unit,
A second storage unit in which the second raw material containing fuel is stored; And
Briquette manufacturing apparatus comprising a; located in the lower portion of the second storage portion, a pair of second compression roll located above the forming roll. The method of claim 3 or 4,
Briquette manufacturing apparatus having an outer circumferential surface of the first compression roll and the second compression roll. According to claim 4,
The resin material providing unit,
Briquette manufacturing apparatus comprising a; supply roll for supplying the resin material toward the downward between the first compression roll and the second compression roll. According to claim 2,
Briquette manufacturing apparatus having a plurality of intaglio portions are formed on the outer circumferential surface of the forming roll. According to claim 2,
The briquette manufacturing unit,
Briquette manufacturing apparatus further comprising; a hydraulic press for adjusting the gap between the pair of forming rolls. According to claim 2,
Briquette manufacturing apparatus further comprising; a guide unit for guiding the compacted body and the coal briquettes between the pair of molding rolls. A compacted material providing unit for supplying the compacted material in the form of a plate downward;
A coal briquette providing unit for supplying coal briquettes in a plate form downward;
A resin material providing unit for supplying a sheet-shaped resin material between the compacted body and the coal briquettes;
A briquette manufacturing unit including a pair of forming rolls and compressing and compacting the compacts and coal briquettes disposed on both sides of the resin material to produce a briquette; And
Melting gasifier disposed below the briquette manufacturing unit; molten iron manufacturing apparatus comprising a. Preparing a compact in the form of a plate and supplying it downward;
Preparing a coal briquette in a plate form and supplying it downward;
Supplying a sheet-shaped resin material between the compacted body and the coal briquettes; And
A method of manufacturing a briquette comprising a method of manufacturing a briquette by compression-molding compacted bodies and coal briquettes disposed on both sides of the resin material using a pair of molding rolls. The method of claim 11,
In the step of manufacturing and supplying the compacted material,
Briquette manufacturing method for producing the compact by compressing the first raw material containing reduced iron through a pair of first compression rolls having a flat outer circumferential surface. The method of claim 11,
In the step of manufacturing and supplying the coal briquettes,
Briquette manufacturing method for producing the briquettes by compressing the second raw material containing fuel through a pair of second compression rolls having a flat outer circumferential surface. The method of claim 11,
In the step of supplying the resin material,
The resin material is a briquette manufacturing method comprising a thermoplastic resin. The method of claim 11,
In the step of manufacturing the briquette,
Briquette manufacturing method of compression molding to a temperature of 150 to 300 ℃. The method of claim 11,
In the step of manufacturing the briquette,
A briquette manufacturing method for manufacturing a briquette corresponding to the shape of the intaglio portion by compressing and molding the compact and the coal briquettes disposed on both sides of the resin material by forming a plurality of intaglio portions on the outer circumferential surface of the molding roll.

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