JP7668153B2 - Charcoal manufacturing equipment - Google Patents

Description

The present invention relates to a charcoal manufacturing device that burns rice husks and other materials to produce charcoal.

A conventional charcoal manufacturing device for producing charcoal is known to be "a charcoal manufacturing device that is composed of an inlet for feeding charcoal material, a cylindrical member having one end connected to the inlet, extending in a substantially horizontal direction, and having a discharge outlet at the other end, a screw conveyor provided inside the cylindrical member for transporting the charcoal material fed from the inlet to the discharge outlet, and a firing device provided between the inlet and the discharge outlet for firing the charcoal material" (Patent Document 1).

However, although this type of charcoal production device was able to heat the entire charcoal material evenly, the cylindrical member was heated by the baking device, and heat was trapped inside the cylindrical member, so there was a risk that the temperature of the baking section would rise too high.

JP 2021-011558 A

In view of the above-mentioned conventional shortcomings, the present invention aims to provide a charcoal production device that can uniformly and efficiently burn charcoal materials such as rice husks.

In order to achieve the above object, the smoked charcoal producing apparatus according to claim 1 of the present invention is a smoked charcoal producing apparatus comprising a tubular member having an inlet at one end for feeding a smoked charcoal material and an outlet at the other end for discharging the smoked charcoal produced by firing the smoked charcoal material, the smoked charcoal producing apparatus being provided inside the tubular member and including a screw conveyor for sending the smoked charcoal material fed from the inlet to the outlet, and a firing device provided between the inlet and the outlet for firing the smoked charcoal material, the firing device including a kiln-shaped firing section provided to cover a part of the tubular member and a heating means for heating the smoked charcoal material, at least a part of the part covered by the firing section is formed into an approximately semicircular pipe shape and has an open upper side , the heating means being a gas burner provided in the firing section, and the angle of the tip of the gas burner being adjustable .

As is clear from the above description, the present invention provides the following effects.
(1) In the invention described in claim 1, the baking device is provided in a part of the cylindrical member in which the screw conveyor is arranged, so that the smoked material can be baked while being stirred by the screw conveyor.
Therefore, the charcoal material can be uniformly fired.
(2) In addition, by adjusting the feeding speed of the screw conveyor, it is possible to set a suitable burning time for the charcoal material and to perform the burning stably.

1 to 7 are explanatory views showing a first embodiment of the present invention.
FIG. 2 is a front view of the charcoal producing apparatus according to the first embodiment. FIG. FIG. 1 is a schematic vertical cross-sectional view of a charcoal production apparatus. FIG. An explanatory diagram of a screw conveyor. FIG. FIG.

The present invention will be described in detail below with reference to the embodiments shown in the drawings. The left-right direction refers to the left-right direction in FIG. 1 (front view), the front-rear direction refers to the left-right direction in FIG. 2 (left side view), and the up-down direction refers to the up-down direction in FIG. 1.

In the first embodiment of the present invention shown in Figures 1 to 7, 1 is a charcoal manufacturing device that burns charcoal material 2 such as rice husks to produce charcoal 3. This charcoal manufacturing device 1 is equipped with a substantially horizontal tubular member that has an inlet at one end through which the charcoal material can be charged and an outlet at the other end through which the charcoal produced by burning the charcoal material is discharged.

That is, as shown in Figs. 1 and 2, the charcoal production device 1 is composed of an inlet 4 for introducing the charcoal material 2, a tubular member 6 (see Fig. 4) whose one end side, for example, near the one end, is connected to the inlet 4, extends in a substantially horizontal direction, and has a discharge outlet 5 formed on the other end side, for example, near the other end, a screw conveyor 7 (see Fig. 5) provided inside the tubular member 6 and transports the charcoal material 2 introduced from the inlet 4 to the discharge outlet 5, and a calcination device 8 (see Fig. 6) provided between the inlet 4 and the discharge outlet 5 and calcining the charcoal material 2.

As shown in FIG. 3 or 4, in this embodiment, the tubular member 6 has an opening 6a at the top (upper wall side) of at least a portion of the horizontal section (excluding one end side and the other end side), and this opening 3a is formed, for example, in a shape such as a substantially semicircular cross section, a substantially downward trapezoidal cross section, or a substantially downward recessed cross section. In this embodiment, since the cross section is substantially semicircular, the overall shape is a substantially cylindrical member having a substantially semicircular pipe-shaped portion. The tubular member 6 has flanges at both ends.

In this embodiment, the tubular member 6 is made up of five tubular member bodies 9 that extend horizontally in the left-right direction, have an open upper portion, and are arranged in parallel so as to abut in the front-to-rear direction. The five tubular member bodies 9 have a cross-sectional shape of a roughly semicircular pipe. The five tubular member bodies 9 are connected at one end to each other in an insertion section 10 having an insertion port 4 formed at the top, and the other end of each of the tubular member bodies 9 has an ejection section 11 having an ejection port 5.

The input section 10, the tubular member main body 9, and the discharge section 11 each have a flange portion, and are connected together via this flange portion to form a single tubular member 6. The connection order is from one end side of the tubular member 6, in the order of the input section 10, the tubular member main body 9, and the discharge section 11.

In this embodiment, the tubular member main body 9 is formed into an approximately semicircular pipe shape except for the portion covered by the baking section 16, i.e., the vicinity of the flange portions at both ends, and the portion with the open top is placed inside the baking device 8. Here, approximately semicircular pipe shape does not only mean a shape obtained by cutting an approximately perfect circle in half, but also includes shapes such as an approximately U-shaped cross section and an upward-facing approximately C-shaped cross section obtained by cutting out about the upper third of an approximately perfect circle. As described above, in this embodiment, the cross section is a shape obtained by cutting an approximately perfect circle in half.

In this embodiment, the upper part of the cylindrical member main body 9 is open over substantially the entire portion covered by the baking section 16, but the cylindrical member main body 9 may be open only partially at the upper part.
The input section 10 has a flange portion connected to the tubular member main body 9, and has an input port 4 formed at the top. A hopper 12 having a substantially inverted cone shape or a substantially inverted pyramid shape is provided so as to communicate with the input port 4. The lower end of the hopper 12 has a through hole formed therein that communicates with the tubular member main body 9.

The discharge section 11 has an opening on the side or bottom surface, or in this embodiment, on the bottom surface, which serves as the discharge outlet 5. A discharge chute (not shown) is attached to this discharge outlet 5 as necessary.

As shown in Figures 2 and 4, for example, the screw conveyor 7 is composed of a spiral screw conveyor body 14 fixed to the outer periphery of a rod-shaped shaft member 13 that is provided to penetrate each of the five cylindrical member bodies 9, and a drive unit 15 disposed on one end side of the screw conveyor body 14 so that each of the screw conveyor bodies 14 can be rotated in any direction. The drive unit 15 may also be one that drives multiple screw conveyor bodies 14 collectively.

The screw conveyor 7 is disposed inside the cylindrical member 6, with the left and right ends of the shaft member 13 penetrating from one end (input section 10) and the other end (discharge section 11) of the cylindrical member 6 to the outside.

A motor 15 is provided at either the left or right end of the shaft member 13 as a drive unit 15 for rotating the screw conveyor 7. A drive unit 15 may be provided at each end. In this embodiment, a solid member is used as the shaft member 13, but a hollow pipe-shaped member may also be used.

As shown in FIG. 5, the calcination device 8 is composed of a small chamber-shaped (kiln-shaped) calcination section 16 made of a fireproof material, which is provided to cover the outer periphery of a part of the tubular member 6, in this embodiment, the tubular member main body 9 (through which the tubular member main body 9 penetrates), a heating means 17 provided in the calcination section 16 to heat the inside of the calcination section 16 to a high temperature and heat the charcoal material 2, a smoke exhaust section 18 to exhaust the air inside the calcination section 16 to the outside, and a blowing means 20 to send air into the inside of the calcination section 16.
In this embodiment, the baking section 16 has a dome-shaped upper portion (roof) and is formed in the shape of a small room (kiln-shaped) that is substantially rectangular when viewed from the front, and is made of firebricks, firecement, fireclay, etc. The baking section 16 and the driving device 15 have their bottoms supported by a frame-shaped base member 23 made of H-beams or the like.

Five round hole-shaped insertion sections 16a into which the tubular member 6 (tubular member main body 9) is inserted are formed in the front-rear direction near the bottom of both sides of the baking section 16, and five tubular member main bodies 9 are arranged in a state of approximately abutment in the front-rear direction so as to pass through the insertion sections 16a. The inner bottom surface of the baking section 16 is formed with an approximately semicircular or approximately U-shaped groove section 16b that communicates with the insertion sections 16a so that the top surface of the half-shaped tubular member main body 9 is open.

The through hole of the baking section 16 may be formed so that only one tubular member body 9 can be placed therein, or five or more tubular member bodies 9 can be inserted therein. A heat-resistant packing (not shown) is provided in any gap between the tubular member body 9 and the baking section 16, etc., into which outside air may enter.
A smoke exhaust section 18 such as a chimney and a heating means 17 are provided on the outer circumferential surface of the baking section 16 .

In this embodiment, the heating means 17 is a gas burner 17, which is attached so that the tip (fire outlet) 17a faces diagonally downward so that the flame of the gas burner 17 faces the charcoal material 2.

That is, the charcoal material 2 is charcoaled by heating the inside of the charcoal burning section 16 to a high temperature using the gas burner 17 and by being directly heated by the flame of the gas burner 17, and becomes charcoal 3.

The gas burner 17 may be provided with an angle adjustment means (not shown) that can adjust the angle of the tip (fire outlet) 17a of the gas burner 17. This angle adjustment may be achieved by an attachment method that allows the angle of the gas burner 17 itself to be adjusted, or the gas burner 17 may be provided with a mechanism that allows the angle of only the tip 17a to be adjusted.

By adjusting the angle of the tip of the gas burner 17 in this way, the way the fire hits the charcoal material 2 can be adjusted appropriately, allowing for proper burning. It is preferable that this angle adjustment means be one that can adjust the angle of the tip 17a of the gas burner 17 downward from the horizontal.

In this embodiment, the smoke exhaust section 18 is located on the front side of the baking section 16 and is equipped with a valve 19 that adjusts the flow of air in and out of the interior.

In this embodiment, an air compressor 20 is used as the air blowing means 20, and air sent out from this air compressor 20 is supplied to the inside of the baking section 16 from a nozzle 20a at the top of the baking section 16. Note that instead of the air compressor 20, a blower or other air blowing device may be used as the air blowing means 20.

In addition, approximately in the center of the front side of the baking section 16, there is an opening 21 through which the internal condition can be seen, and a door 22 that can be opened and closed to cover this opening 21.

When this smoked charcoal producing apparatus 1 is used, as shown in Fig. 7, the smoked charcoal material 2 is fed into the cylindrical member 6 through a hopper 12. The smoked charcoal material 2 fed into the cylindrical member 6 falls into the feed port 4 from a through hole at the lower end of the hopper 12. The smoked charcoal material 2 that has fallen into the feed port 4 is drawn into the screw portion at one end side of the screw conveyor 7 (the left side in the drawing).
The charcoal material 2 drawn into the screw section at one end is wound into the long screw section continuing from the one end, and is guided to the screw section at the other end (the right side in the drawing), and reaches the discharge outlet 5.

As shown in FIG. 7, the baking device 8 is preferably installed between the inlet 4 side and the outlet 5 side of the tubular member 6, and the smoky material 2 is baked by the baking device 8 while being transported by the screw conveyor 7 to become smoky charcoal 3. At this time, the smoky material 2 is transported in the direction of the outlet 5 while being stirred by the screw conveyor 7 over a required time, so that the baking device 8 transfers heat to the smoky material 2 evenly and the flame of the gas burner 17 hits the smoky material 2 evenly. Therefore, the smoky material can be baked without any so-called unevenness.

By adjusting the time for passing through the baking device 8 (baking section 16), the baking time can be made suitable for the smoky carbon material 2 used.
In addition, smoke and the like generated from the charcoal material 2 while passing through the baking device 8 is exhausted to the outside through the smoke exhaust section 18.

When the burned charcoal 3 passes through the area where the burning device 8 is provided, the burned charcoal 3 is discharged from the discharge port 5. After the burned charcoal 3 is discharged from the discharge port 5, the burned charcoal 3 is cooled by air cooling, water cooling, or the like.
In the embodiment of the present invention, as shown in FIG. 4, the tubular member 1 is composed of an input portion 10, a tubular member main body 9, and a discharge portion 11, but it may also be composed of only the tubular member main body 9, with the input and discharge ports provided in this tubular member main body.

In addition, the tubular member has been described as having multiple tubular member bodies (five in this embodiment), but the tubular member may have only one tubular member body, or may be configured using less than five or more than five tubular member bodies.

Furthermore, in the embodiment of the present invention, a gas burner is used as the heating means, but the heating means may be one that uses electricity, such as a heating wire.

This invention is used in the charcoal manufacturing industry.

1: Smoky charcoal manufacturing equipment, 2: Smoky charcoal material,
3: Smoky charcoal, 4: Inlet,
5: Discharge port, 6: Cylindrical member,
7: screw conveyor, 8: baking device,
9: tubular member main body; 10: input portion;
11: discharge section, 12: hopper,
13: shaft member, 14: screw conveyor body,
15: driving device, 16: baking unit,
17: heating means, 18: smoke exhaust section,
19: valve; 20: blowing means;
21: opening, 22: door,
23: Base member.

Claims (1)

A charcoal producing apparatus having a tubular member having an inlet at one end for inputting charcoal material and an outlet at the other end for discharging charcoal produced by burning the charcoal material,
The charcoal manufacturing apparatus includes a screw conveyor provided inside the cylindrical member, which conveys the charcoal material fed from the feed port to the discharge port, and a firing device provided between the feed port and the discharge port for firing the charcoal material;
The firing device has a kiln-shaped firing section arranged to cover a portion of the cylindrical member, and a heating means for heating the charcoal material, at least a portion of the cylindrical member covered by the firing section is formed into an approximately semicircular pipe shape with an open upper side , the heating means is a gas burner arranged in the firing section, and the angle of the tip of the gas burner can be adjusted .

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