JP3325885B1 - Molded coal for fuel, fuel with ignition material, and manufacturing method - Google Patents

Abstract

An object of the present invention is to obtain a fuel capable of shortening the time required for the entire charcoal to ignite (charcoal is generated) and obtaining a constant calorie of combustion for a long time. SOLUTION: A large number of elongated noodle-like or granular primary molded products 1A obtained from a kneaded product containing a charcoal powder and a binder are collected, and a gap S remains between the primary molded products 1A. It is formed into a predetermined shape in the state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to molded coal for fuel and a fuel with an ignition material.

[0002]

BACKGROUND OF THE INVENTION Charcoal is used as a fuel for cooking yakiniku, yakitori, and the like. However, producing charcoal from raw wood requires new resources. Therefore, from the viewpoint of CO ₂ reduction, it is desirable to use molded coal obtained from waste materials and the like.

[0003] As shaped coal for fuel, bean charcoal, charcoal briquettes (ton), briquettes and the like are known. In addition,
No. 26680 has a diameter of 15 mm or more as an industrial fuel.
A lignite pellet shaped to 30 mm is disclosed.

[0004] Fuels such as wood are superior in ignitability to charcoal, but are unsuitable for grilled meat and barbecue because of the high burning rate. On the other hand, charcoal is suitable for barbecues and the like because a constant calorie of combustion is obtained when the entire charcoal is lit. However, charcoal has poor ignitability, so it takes time to obtain sufficient thermal power.

Accordingly, an object of the present invention is to shorten the time required for the entire charcoal to be ignited (charcoal occurs),
The goal is to obtain a fuel that gives a constant calorie of combustion over a long period of time.

Summary of the Invention

[0006] In order to achieve the above object, the present invention is, tree
A large number of elongated noodle-like or granular primary molded products obtained from a kneaded product containing a charcoal powder and a binder are aggregated and formed into a predetermined shape in a state where a gap remains between the primary molded products. It becomes.

According to the present invention, since a gap remains between the primary molded articles, air escapes from the gap, and the primary molded article is a long and thin noodle-like substance or a granular substance, so that the surface area is large. Therefore, the primary molded article is easily ignited. Therefore, a fire spreads over the entire coal, and a constant calorie of combustion can be obtained quickly. Therefore, it can be eaten quickly at a barbecue or the like. In addition, when used in a store, the turnover of the table (seat seat) is increased and the profit is increased. On the other hand, the primary molded product is obtained from charcoal powder, so that the primary molded product itself is dense and has good fire life. That is, a fixed calorie burned for a long time can be obtained.

[0008] From such a viewpoint, it is preferable to increase the density of the primary molded product by applying pressure. In order to form a primary molded product by applying pressure, a kneaded product of charcoal, a binder and water is extruded from an elongated hole. If the kneaded material is continuously extruded, an elongated noodle-like primary molded product can be obtained. Granules can be obtained by intermittently extruding the kneaded material or by cutting the primary molded product shortly after extrusion. In addition, if the long hole from which the kneaded material is extruded has a tapered shape with a taper, the pressing force is increased and the density of the primary molded product is increased.

[0009] As the elongated noodle-like primary molded product, those having a shape such as dry noodles or raw noodles for food can be employed. In addition, as a granular primary molded product, a spherical one can be employed in addition to a cylindrical or cylindrical chip-shaped one. Since pressure is applied to the primary molded product, the density of the primary molded product itself is increased, so that stable combustion calories can be obtained with a small volume for a long time.

[0010] In the present invention, the powdery charcoal may be granules.
It is most preferable to use one having a diameter of 300 microns or less, and about several microns to several tens of microns. Various binders such as lignin, molasses, and starch paste can be used as the binder.

The gap between the primary molded products is preferably increased to increase the ignitability, but is preferably reduced to obtain a large amount of calories for a long time. Note that the gap between the temporary molded products is for supplying air to the surface of the temporary molded product, and therefore does not necessarily need to be visible to the naked eye.

The wire diameter of the noodle-like elongated primary molded product is as follows:
It is preferable to employ one having a size of about 1 mm to 8 mm. In addition, the wire diameter of the noodles is generally set to 12 mm or less.
As the size of the granular material, it is preferable to use a granular material having a particle size of about 3 mm to 10 mm. The particle size of the granular material is generally set to 20 mm or less.

[0013] In order to enhance the shape-retaining property of the formed coal itself, it is preferable that a binder is applied to the surface of the large number of primary molded products separately from the binder contained in the kneaded material. In addition, it is preferable to set the number as a large number of noodles to ten or more. In addition, it is preferable to collect hundreds to hundreds of thousands of particles as a large number of particles. The number of granular materials is generally set to several tens or more.

It is preferable that the formed coal has a layer having a small bulk density and a layer having a large bulk density which are vertically overlapped. In this way, if the densities are different, if the fire is ignited from below with the low bulk density layer down and the high bulk density layer up, the air will easily pass through, and the fire will blow from the lower layer to the upper layer at once. Turn around. That is, the entire coal is ignited more quickly.

Such a change in the bulk density can be achieved by simply dropping the primary molded article into the mold from above, thereby forming a layer having a large bulk density under its own weight. Also, after filling the female mold with the primary molded product, the male mold is lightly clamped from above, and if a molded product is made, the portion pressed by the male mold generally has a higher bulk density, The bulk density is smaller on the stationary female side.

A plurality of projections are provided at the lower part of the coal,
It is preferable to form a passage through which air passes when the coal is burned between the plurality of protrusions. In the case of a shaped coal having such a shape, a plurality of projections form a grate at the time of burning the shaped coal, so even a simple barbecue stove having no grate can be easily formed. After ignition, a certain combustion state can be obtained. Further, even in the case where there is a grate, the combustion state is improved because the air flow is improved.

[0017] The plurality of projections may be formed of a part of the coal. Some convex portions may be formed of metal or the like,
Preferably, it is formed from a part of the coal. By doing so, cost can be reduced and waste of resources can be prevented. When the projections are formed of metal or the like, it is preferable to form the projections with a wire net made of a thin wire.

[0018] A layer of an igniting material having a higher burning rate than the charcoal may be laminated below the charcoal. Charcoal is significantly less ignitable than paper and sawdust. Therefore, ignitability can be remarkably improved by laminating an igniting material having a higher burning rate than charcoal.

The ignition material layer is preferably formed by depositing a fibrous material and / or a powdery material containing cellulose as a component. This is because such fibrous materials and powdery materials are not only excellent in ignitability but also have small holes through which air passes, so that the flame rises from below to above. Furthermore, if a fibrous material and / or a powdery material containing cellulose as a component is allowed to enter the gaps of the formed coal, the fibrous or powdery materials entering the gaps burn, and the entire coal is quickly ignited. Turns around.

It is preferable that a plurality of projections forming a grate at the time of ignition of the ignition material are formed at the bottom of the ignition material layer. Further, it is more preferable that an igniting agent such as another paraffin having a lower ignition point than the igniting material is applied or impregnated on the bottom surface or the bottom surface layer of the igniting material. This makes ignition easier.

In a preferred embodiment of the invention, the igniter forms a container for retaining the shaped coal. According to this embodiment, when the igniting material is burned, not only the entire coal is ignited, but also the coal formed by collecting the primary molded products can be prevented from being out of shape.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show a first embodiment. Molded coal for fuel: The molded coal for fuel of the present invention may have various shapes as its shape and the shape of a primary molded product forming the molded coal. For example, first, FIG.
The molded coal 2A formed into a cylindrical shape using the noodle-shaped primary molded product 1A shown in (a) will be described.

As shown in FIG. 1 (a), the fuel coal 2A of the present invention is formed in a substantially columnar shape. The molded coal 2A is formed of a large number of elongated noodle-shaped primary molded products 1A. The primary molded product 1A is obtained from a kneaded product containing a powder of charcoal, water and a binder.

The noodle-like primary molded product 1A is molded by applying pressure, as will be described later, and has a circular cross section as shown in FIG. 1B, for example. The molded charcoal 2A is formed into a predetermined shape in such a manner that a large number of elongated noodle-shaped primary molded products 1A are assembled, and a gap S remains between the noodle-shaped primary molded products 1A. On the surface of the primary molded product 1A, in order to enhance the shape retention of the molded coal 2A,
A binder 6 is applied separately from the binder contained in the kneaded material.

The coal 2A is formed such that a layer having a small bulk density and a layer having a large bulk density are vertically overlapped. The bulk density is set so that the lower layer is smaller than the upper layer when the surface to be ignited is down.

Fuel with ignition material: As shown in FIG.
The fuel with an igniting material according to the present invention includes a layer of an igniting material 3 having a higher combustion rate than the above-mentioned shaped coal 2A below the above-mentioned shaped coal 2A. The igniting material 3 is formed by depositing a fibrous material and / or a powdery material containing cellulose in its component. For example, sawdust is used as the powdery material. The ignition material 3 slightly enters the gap S of the noodle-like primary molded product 1A.

An ignition agent 4 is impregnated on the bottom surface of the ignition material 3. The ignition agent 4 is made of a material whose ignition point is lower than that of the ignition material 3. As the igniter 4, for example, paraffin can be used. The above-mentioned molded coal 2A,
The entire fuel including the ignition material 3 and the ignition agent 4 is shrink-wrapped by the flammable film 5.

In order to burn the fuel with ignition material, a fire is brought close to the lower igniter 4. By approaching the fire, the film 5 melts and the ignition agent 4 is ignited. Since the igniter 4 is composed of paraffin having a low ignition point, it can be ignited relatively easily. The ignition material 3 is ignited by the combustion of the ignition agent 4. The burning of the ignition material 3 ignites the coal 2A having a high ignition point.

As described above, since the lower layer is set to have a lower bulk density than the upper layer, the formed coal 2A can easily pass air when ignited from below. Since the fire is turned to the upper layer, the fire is quickly turned on the whole of the coal 2A.

The gap S between the primary molded products 1A
May be appropriately changed depending on the use of the main coal 2A.
For example, if a person who is not good at ignition wants to cook quickly at an outdoor barbecue, etc.
When A is used, and when it is desired to use it for a long time in a store or the like, it is preferable to use molded coal 2A having a small gap.

FIG. 1D shows a modification of the fuel with an ignition material. In the present modification, the ignition material 3 covers almost the entire surface of the formed coal 2A. That is, the igniting material 3 is, for example, a corrugated cardboard or sawdust formed into a container shape, and covers substantially the entire bottom surface, side surface (peripheral surface) and top surface of the formed charcoal 2A. Thus, not only can the primary molded product 1A be peeled off to prevent the molded coal 2A from breaking out of shape, but also after the ignition material 3 is burned, the entire molded coal 2A is lit.

Manufacturing method of fuel with ignition material: Step of obtaining kneaded material; In FIG. 2, in order to obtain the fuel with ignition material, first, a coal powder is prepared or manufactured. The firing temperature for obtaining the raw coal is 400 ° C to 1200 ° C, but it is preferable to use high-temperature coal or white coal. The high-temperature coal powder can be industrially mass-produced, for example, through the following steps. In other words, the waste wood is crushed into powder (sawdust (sawdust))
Then, the powdery waste material at a maximum temperature of 800 ℃ ~ 1000 ℃,
20 minutes to 60 minutes (preferably 30 minutes to 40 minutes) in the furnace
Min) to heat and carbonize to obtain high temperature coal. The average particle size of the carbonized high-temperature coal is 300μ by a roll crusher.
Disintegrate into powders of m or less. For example, a binder such as starch and water are mixed with the charcoal powder, and the mixture is kneaded in a mixer to obtain a kneaded product.

Step of obtaining a primary molded product; Next, as shown in FIG. The extrusion port of the extruder 61 is provided with a large number of holes (not shown). The kneaded material is extruded from the extrusion port, and is formed under pressure to form a plurality of primary noodles. The molded product 1A is discharged into the lower cylindrical mold 62. At this time, the binder 6 may be sprayed on the surface of the primary molded article 1A in order to strengthen the bonding force between the primary molded articles 1A.

Secondary molding step: The primary molded product 1A is dropped into the cylindrical mold 62 below, so that the primary molded product 1A is filled in a wave shape and the primary molded product 1A , A gap S is generated. The primary molded product 1A is filled along the cylindrical mold 62, a large number of them are assembled, and the primary molded product 1A is molded into a cylindrical shape to form molded coal 2A.

Here, the primary molded article 1A is compressed downward by its own weight to form a layer having a large bulk density. Therefore, the coal 2A
Is a layer with a large bulk density (lower in FIG. 3)
And a small layer (upper part in FIG. 3) are formed in a state of being vertically overlapped.

Step of Forming a Layer of Ignition Material: The cylindrical mold 62 has a number of holes for suctioning air at a lower portion thereof, and is fixed on the first conveyor 65. After the filling, the cylindrical mold 62 is transported downstream, and the igniting material 3 is sprayed from above and the air is sucked from below. The igniting material 3 is made of, for example, a mixture of sawdust and water and a binder. The igniting material 3 enters the gap S between the primary molded products 1A and forms a layer on the upper portion of the molded coal 2A. As the binder, for example, starch or glue can be used. Thereafter, the cylindrical mold 62 is conveyed downstream, and an igniting agent 4 made of paraffin is sprayed from above, and the igniting agent 4 permeates the ignition material 3.

Thereafter, the formed coal 2A to which the igniting material 3 and the igniter 4 have been blown is discharged from the cylindrical mold 62 onto a second conveyor 66 downstream. The above-mentioned molded coal 2A
When it is discharged from the cylindrical mold 62, it is transported downstream with its upside down. As shown in FIG. 2, after the spraying, the formed coal 2A is conveyed downstream, dried using the waste heat of the carbonization furnace, and then shrink-packed by a well-known shrink wrapping machine.

In general, charcoal has a low viscosity and is often cut short. However, by adjusting the type of binder used in the kneaded material and the proportion of water, the charcoal can be reduced as shown in FIG.
, A relatively long primary molded product 1B may be formed.

Modified Example: Next, other shapes of the formed coal and the fuel with the ignition material are exemplified below. Note that the formed coal 2B shown in FIG. 4 is drawn with the lower part facing upward. The molded coal 2B shown in FIG. 4A is formed in a substantially rectangular parallelepiped, and a convex portion 21 larger than the wire diameter of the primary molded product 1A is provided at a lower portion (upper portion in FIG. 4) of the molded coal 2B. Have been. The convex portion 21 is formed at a part of a lower portion of the formed coal 2B, and is formed at a plurality of locations of the formed coal 2B. Therefore, a passage 20 through which the air A passes when the coal 2B is burned is formed between the convex portions 21.

The fired coal 2B has a grate formed by the projections 21 during combustion, and can easily ignite when air A escapes from between the projections 21 and can stably obtain a constant heating power. it can.

The convex portion 21 of the coal 2B is shown in FIG.
May be provided only at both ends as shown in FIG.
A layer of the igniting material 3 is provided on the formed coal 2B shown in FIG. In the formed coal 2B provided with the layer of the ignition material 3 shown in FIG.
Is provided.

[0044] The formed coal 2C shown in FIGS.
The cross-sectional shape is formed in a wave shape. The molded coal 2C
As shown in FIG. 5 (b), the thermal power can be adjusted by stacking the formed coal 2C.

The formed coal 2D shown in FIGS. 5C and 5D is formed in a donut shape centering on a through hole 22 penetrating vertically, and the through hole 22 is formed at the bottom of the formed coal 2D. An igniter 4 is provided so as to close. The shaped coal 2D
In this case, the ignitability is remarkably improved by the flow of air from the through hole 22.

Second Embodiment: As shown in FIG.
The molded coal 2E of the second embodiment is formed of a linear elongated noodle-like (rod-like) primary molded product 1E. The formed coal 2E is formed in such a state that a gap S remains between the noodle-shaped primary molded products 1E in parallel with the primary molded product 1E. On the surface of the primary molded product 1E, formed charcoal 2E
The binder 6 is applied separately from the binder contained in the kneaded material in order to enhance the shape retention of the mixture.

Since the gap S is formed in the formed coal 2E in parallel with the primary molded product 1E, the air passing through the gap S causes a substantially constant thermal power to be generated in any part of the formed coal 2E. can get. Therefore, cooking can be efficiently performed, particularly in stores such as grilled chicken and eel kabayaki. In addition, since the elongated primary molded product 1E is in a lump, fine adjustment of the heating power can be easily performed by finely changing the posture and moving the molded coal 2E.

The molded coal 2E can be obtained by drying and collecting the rod-shaped primary molded products 1E and joining the primary molded products 1E together with a binder, but can also be obtained by the following production method.

In order to manufacture the molded coal 2E, FIG.
As shown in (b), the kneaded material 30 is extruded downward from the extrusion port 45 by the screw conveyor 41. A number of holes 42 are formed in the extrusion port 45, and the kneaded material 30 is extruded from the extrusion port 45 to form a plurality of linear primary molded products 1E. Here, since the diameter of the hole 42 is set to be smaller from the upper side to the lower side, the kneaded material 30 is compressed and extruded.

The plurality of primary molded products 1E are formed in close contact with each other by the narrow discharge port 43 at the bottom to form the molded coal 2E. Thereafter, the formed coal 2E is cut into a predetermined length, and after being blown with a binder 6 made of, for example, starch, is dried. The igniting material 3 or the igniting agent 4 may be sprayed on the molded coal 2E, or shrink wrapping may be performed.

Since it is assumed that the shaped coal of the second embodiment is used for yakitori or kabayaki, the kneaded product is made of charcoal powder or fragrance made from high-quality wood such as cherry blossoms or cedar. By mixing at the time, scenting at the time of combustion may be performed.

Third Embodiment: A plurality of truncated conical legs (convex portions) 23 are provided on a square shaped coal 2F shown in FIG. 7 (a). FIG. 7A illustrates the lower part upward. The molded coal 2F shown in FIG. 7A is formed by a large number of granular primary molded products 1F. Examples of the primary molded product 1F include a spherical shape 13 shown in FIG.
A cylindrical shape 14 shown in FIG. 7C and a cylindrical shape 15 shown in FIG.
Can be used. The primary molded product 1F preferably has a particle size of 3 mm to 10 mm, and more preferably 5 mm to 9 mm. In addition, the shape of the molded coal 2F formed by the primary molded product 1F can be formed into various shapes shown in the first embodiment and the modified examples, in addition to the square shape having the leg portions 23.

In order to manufacture the molded charcoal 2F, the primary molded product 1F is dropped and filled into a cylindrical mold 62A having a concave portion 67 formed in the lower part according to the shape of the leg 23. I do. Other manufacturing methods are the same as those of the first method described above.
This is the same as the embodiment, and the detailed description and illustration are omitted.

[Brief description of the drawings]

FIG. 1 is a perspective view and an enlarged sectional view showing a formed coal and a fuel with an ignition material according to a first embodiment of the present invention.

FIG. 2 is a process chart showing the same manufacturing method.

FIG. 3 is a schematic side view showing the manufacturing apparatus.

FIG. 4 is a perspective view showing a modified example of a formed coal and a fuel with an ignition material.
FIG.

FIG. 5 shows another modified example of the formed coal and the fuel with an ignition material.
It is a perspective view and a sectional view.

FIG. 6A is a perspective view illustrating a formed coal according to a second embodiment, and FIG. 6B is a cross-sectional view illustrating a manufacturing apparatus.

7A is a perspective view showing a formed coal according to a third embodiment, FIGS. 7B, 7C, and 7D are perspective views showing a primary molded product, and FIG. FIG.

Continuation of the front page (56) References JP-A-11-302672 (JP, A) JP-A-9-58399 (JP, A) JP-A-2000-273476 (JP, A) JP-A-57-117594 (JP, A A) JP-A-63-142096 (JP, A) JP-A-10-130671 (JP, A) JP-A-64-45496 (JP, A) JP-A-63-264697 (JP, A) JP-A Sho 60 JP-A-2000-288504 (JP, A) JP-A-63-85645 (JP, U) JP-A-2-25551 (JP, U) JP-A-7-21751 (JP, U) Japanese Utility Model Laid-Open 4-110736 (JP, U) Japanese Utility Model 63-158955 (JP, U) Japanese Utility Model 59-37349 (JP, U) Japanese Utility Model Utility Model 58-110044 (JP, U) Japanese Patent Publication 45-10414 (JP, B1) Jikken Sho 53-4214 (JP, Y1) Registered utility model 47969 (JP, Z1) (58) Fields investigated (Int. Cl. ⁷ , DB name) C10L 5/36 C10L 5/10 C10L 5/38 C10L 11/06

Claims (5)

(57) [Claims] An agglomerate of a large number of granular primary molded products obtained from a kneaded product containing a charcoal powder having an average particle diameter of 300 μm or less and a binder, and the primary molded product Molded coal for fuel formed in a predetermined shape with a gap left between them. 2. An elongated noodle-like primary material obtained from a kneaded product containing a charcoal powder having an average particle size of 300 μm or less and a binder.
Molded coal for fuel formed by assembling a large number of shaped articles and molding them into a predetermined shape in a state where a gap remains between the primary molded articles. 3. The molded coal for fuel according to claim 1, wherein the molded coal is a state in which a layer having a small bulk density and a layer having a large bulk density of the primary molded product are vertically overlapped. 4. The formed coal according to claim 1, wherein
And burning below the coal, laminated below the coal
With ignited fuel having a high velocity igniter layer
The ignition material layer is made of a fibrous material containing cellulose as an ingredient.
A fuel with an igniting material, wherein the fuel and / or powder is formed by depositing and / or depositing a fibrous substance and / or powder containing cellulose as a component into gaps between the primary molded articles of the molded coal. 5. A method for producing a fuel with an ignition material according to claim 4.
A step of kneading a powdery substance of coal, a binder and water to obtain a kneaded product, a step of obtaining an elongated noodle-like or granular primary molded product from the kneaded product, and A step of assembling a large number on a net-like support plate; and spraying a fibrous material and / or a powdery material containing cellulose as a component onto the upper surface of the primary molded product from above the collection of the primary molded product. The air is sucked from below to form the ignition material layer, and the ignition material
To enter the gap between the primary moldings of the coal
And a manufacturing method.