JPH0562551U - Carbonization equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To reliably prevent the displacement of the drum in the axial direction of the drum arranged in an inclined state. [Structure] The drum 3 constituting the dry distillation furnace has a supply port 3a at one end in the drum axis X direction and a discharge port 3b at the other end, and the drum is supported on the floor frame 2 rotatably around the drum shaft. A tilting hydraulic cylinder 8b is provided for converting the floor frame into a tilted state in which the floor frame is inclined downward. An annular flange 14 is provided which protrudes in the outer peripheral direction from the outer peripheral surface of the drum at an appropriate position in the drum axis X direction. This flange 1
The support roller 15 that rolls close to and faces the side surface on the outlet side of 4 is rotatably fixed to the floor frame about an axis orthogonal to the drum axis.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a carbonization device for carbonizing carbonaceous material such as waste wood, for reuse.

[0002]

[Prior Art]

 Conventionally, as a carbonization device of this type, a carbonaceous material is heated in a drum in which a supply section is connected to one end side in the drum axial direction and a discharge section is connected to the other end side to generate a carbide. The thing is known (for example, refer Unexamined-Japanese-Patent No. 47-15387). In this conventional carbonization device, the drum is arranged at an inclination angle (about 10 degrees) so as to be slightly inclined toward the discharge portion, and the drum is mounted on a guide roller attached to the cradle side. A guide rail mounted around the is mounted and rotatably supported around the drum shaft.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional carbonization device, since the drum shaft of the drum is arranged not at horizontal but at a certain inclination angle, rotation around the drum shaft causes the drum to move toward the discharge portion side in the drum shaft direction. There is a risk that the guide rail will disengage from the guide roller. When the guide rail is disengaged, the drum cannot be rotated and the carbonization process cannot be continued.

Therefore, as the guide roller, a guide roller with a flange integrally formed with a flange portion at the end portion in the axial direction of the drum is used, and the flange portion prevents displacement of the drum in the drum axial direction. ing. However, the self-weight of the drum is relatively large, and a displacement force proportional to the self-weight acts on the collar portion.Therefore, merely providing the collar portion is not always reliable as a stopper that prevents the displacement of the drum. I can't say.

In addition, the inclination angle of the drum is made variable, and particularly at the time of discharging after the end of the carbonization process, the downward gradient to the discharging portion side is made steeper to shorten the discharging time of the carbide in the drum to the discharging portion. It is possible to plan. However, as the inclination angle is increased, the displacement force acting on the collar portion is increased, and the possibility that the guide rail is disengaged from the guide roller is increased.

The present invention has been made in view of the above circumstances, and an object thereof is to reliably prevent the displacement of the drum in the drum axial direction in the drum arranged in the inclined state. Especially.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 is a drum constituting a dry distillation furnace, the drum having a supply port at one of both end portions in the drum axial direction and a discharge port at the other end, A gantry that rotatably supports the drum around the drum axis is provided, and the drum is arranged in an inclined state in which the drum has a downward slope toward the discharge port. In this structure, the drum is provided with an annular flange projecting from the outer peripheral surface at an appropriate position in the drum axial direction in the outer peripheral direction. Then, a support roller that rotates around an axis orthogonal to the drum axis and rollably faces the side surface of the flange on the discharge port side is mounted on the gantry.

[0008]

[Action]

 With the above structure, in the device according to the first aspect, the drum is arranged in the inclined state in which the drum has a downward slope toward the discharge port. Therefore, the drum is rotated about the drum axis to correspond to the inclined angle. Due to the weight of the drum, a displacement force is generated toward the discharge port in the drum axial direction. On the other hand, the side face of the flange provided on the drum on the outlet side is in contact with the support roller, and moreover, since this support roller is positionally fixed to the mount by the shaft orthogonal to the drum shaft, The support roller plays a role of a stopper that prevents the flange from being displaced toward the discharge port side in the axial direction of the drum with respect to the mount. Therefore, the support roller bears the above-mentioned displacement force and prevents the displacement of the drum. Further, since the support roller rotates around an axis orthogonal to the drum axis and faces the flange so as to be rollable, the support roller guides the rotation of the drum.

[0009]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a carbonization apparatus according to an embodiment of the present invention, in which 1 is a support frame and 2 is a floor frame supported on the support frame 1 so as to be tiltable about a horizontal axis Z. A drum 3 is disposed laterally on the floor frame 2 and is supported rotatably around a drum axis X orthogonal to the horizontal axis Z. 4 is one end of the drum 3 in the drum axis X direction. A supply part 5 connected to the supply port 3a, which is the left end part of FIG. 1, and a discharge part 5 connected to the discharge port 3b, which is the other end part (right end part of FIG. 1) of the drum 3 described above. Is a discharge amount adjusting means arranged on the side of the discharge port 3b, and 7 is a smoke discharge processing means connected to the discharge portion 5. The carbonization device includes the support frame 1 and a device main body including the floor frame 2, the drum 3, the supply unit 4, the discharge unit 5, and the like. It is tiltably supported at a predetermined upper position.

The support frame 1 includes a base member 1a that is fixed in position at an installation location, a plurality of pillar members 1b, 1b, ... Standing on the base member 1a, and upper ends of the pillar members 1b. It comprises a beam member 1c to be connected.

The floor frame 2 constitutes a pedestal that integrally supports the drum 3, the supply unit 4, the discharge unit 5, and the like. A portion of the floor frame 2 on the drum shaft X direction discharge outlet 3b side is connected to a tilt support portion 8a provided on the beam member 1c so as to be tiltable around the horizontal axis Z, and at the same time, in the drum shaft X direction. The portion on the side of the supply port 3a is attached to the base member 1a via a tilting hydraulic cylinder 8b. Then, the floor frame 2 is placed on the beam member 1c by the reduction operation of the hydraulic cylinder 8b and is converted into a horizontal state (the state shown in FIG. 1) in which the drum 3 is kept substantially horizontal, By the extension operation, the drum 3 is tilted about the horizontal axis Z and is converted into an inclined state (the state shown in FIG. 2) in which the drum 3 has a downward slope from the supply section 4 toward the discharge section 5. ..

The drum 3 has a pair of flanged guide rollers 9a, 9a mounted on a predetermined position on the upper surface of the floor frame 2 so as to be rotatable around an axis parallel to the drum axis X, and a flat roller surface. Are supported by three pairs of guide rollers 9b, 9b, ... Each of the guide rollers 9a at the central position has a pair of flange portions 9c, 9c forming an annular convex portion on both end faces thereof, and the annular convex portion having a width corresponding to the interval between the both flange portions 9c, 9c. The endless guide rail 10a is formed on the outer peripheral surface of the drum 3 at a center position in the drum axis X direction. The guide rollers 9a are in rollable contact with the guide rails 10a in a state where both side surfaces of the guide rails 10a in the direction of the drum axis X are sandwiched by the collar portions 9c, 9c.

Further, guide rails 10b each having a width larger than the width of each of the guide rollers 9b by a predetermined amount are provided on the outer peripheral surfaces of both side end portions 3a and 3b of the drum 3, respectively. The guide rollers 9b are in rolling contact with each other. That is, the relative movement of the drum 3 with respect to the floor frame 2 at the central portion in the drum axis X direction is restricted by the guide rollers 9a and the guide rails 10a, and the guide rollers 9b and the guide rails 10b are also provided. By this, relative movement of the both end portions 3a, 3b in the drum axis X direction is allowed.

Of the six guide rollers 9a, 9b, ..., The guide roller 9a on one side and the adjacent guide roller 9b with the drum axis X interposed therebetween are connected to each other by a drive rod 11. The drive rod 11 is rotationally driven by a drive motor 12 connected via a chain 13, so that the guide rollers 9a and 9b are rotated. The drum 3 is rotated around the drum axis X by the rotation of both the guide rollers 9a and 9b.

Further, on the outer peripheral surface of the drum 3 at an appropriate position in the drum axis X direction (the intermediate position between the two adjacent guide rails 10a and 10b in the illustrated example), an annular flange 14 protruding in the outer peripheral direction is formed. Is fixed to the side surface 14a of the flange 14 on the discharge portion 5 side in the drum axis X direction. The support roller 15 is rotatably attached and fixed on the floor frame 2 in the horizontal state about a vertical axis Y orthogonal to the drum axis X. That is, in addition to the rotation guide of the drum 3, it also functions as a stopper that finally prevents the drum 3 from moving toward the discharge side in the above-mentioned inclined state (see FIG. 2).

Further, as shown in detail in FIG. 4, the inner peripheral surface of the drum 3 is provided with a large number of stirring vane plates 16, 16, ... The vane plates 16 are arranged at equal positions in the circumferential direction on the inner peripheral surface and are arranged at predetermined intervals on a line parallel to the drum axis X.

A cover cylinder 17 attached to the floor frame 2 is externally inserted into the supply port 3a of the drum 3, and the cover cylinder 17 is a seal attached to the outer peripheral surface of the supply port 3a. The supply side opening 3 c is shielded with the inner peripheral surface sealed by the member 18. A combustion means 19 such as a gas burner is attached to the cover cylinder 17 so as to face the inside of the drum 3, and the interior of the drum 3 is heated by the combustion means 19. .. The outer peripheral surface of the drum 3 is covered with a heat insulating material (not shown) to prevent heat radiation.

The drum 3 configured as described above, the combustion means 19 and the like constitute a carbonization furnace for carbonizing carbonaceous material.

The supply unit 4 is mounted above the floor frame 2 and is provided with a hopper 20 for charging carbonaceous material, and is provided at the lower end of the hopper 20 so that the carbonaceous material from the hopper 20 is transferred to the drum 3. It is provided with a feeding means 21 for feeding the inside from the supply side opening 3c. As shown in detail in FIG. 5 and FIG. 6, the feeding means 21 is a lateral feeding cylinder 22 that communicates with the lower end of the hopper 20 and moves forwards and backwards inside the feeding cylinder 22. It comprises a piston member 23 for pushing the carbonaceous material from the lower end of the hopper 20 to the supply side opening 3c, and a pair of hydraulic cylinders 24, 24 for moving the piston member 23 forward and backward.

The pair of hydraulic cylinders 24, 24 are mounted on the outer surface of the feed cylinder 22 in the advancing / retreating direction of the piston member 23, and are connected to the connecting rod 25 connecting the cylinder rods 24a, 24a. The piston rod 23a of the piston member 23 is connected. The piston member 23 repeats reciprocating movements as the hydraulic cylinders 24 expand and contract, whereby the carbonaceous material in the feed cylinder 22 is continuously pushed into the drum 3.

Further, the tip end portion 22a of the feeding cylinder body 22 penetrates the cover cylinder body 17 and is inserted into the lower portion of the drum 3 through the supply side opening portion 3c. As shown in FIG. 5, a semicircular retaining plate 26 that matches the lower inner peripheral surface 3e of the drum 3 is fixed. The retaining plate 26 plays a role of retaining the carbonaceous material supplied into the drum 3 from the tip of the feed cylinder 22 penetrating therethrough so as not to fall into the cover cylinder 17 side. There is. The retaining plate 26 is arranged so as to be slightly separated from the lower inner peripheral surface 3e of the supply port 3a and float so as not to interfere with the drum 3 when the drum 3 rotates.

Reference numeral 27 in FIGS. 1 and 5 is a maintenance discharge pipe connected to the bottom of the cover cylinder 17, and the discharge pipe 27 regularly collects pulverized coal or the like collected on the bottom of the cover cylinder 17. It is designed to be discharged to prevent the dust coal from being caught in the seal member 18.

The discharge unit 5 has an L-shaped discharge duct 28 supported by the floor frame 2, a screen conveyer 29 that feeds the carbide in the discharge duct 28 to the outlet 28a while crushing the carbide. A drive motor 30 for rotating the screw conveyor 29. As shown in detail in FIG. 8, the discharge duct 28 includes a cover tube portion 31 that covers the discharge port 3b of the drum 3 and a drop chute that communicates with the lower end of the cover tube portion 31 and extends downward. It is composed of a tubular portion 32 and a lateral feed tubular portion 33 which is connected to the lower end of the chute tubular portion 32 at its base end side and extends to the outlet 28a.

The cover tubular portion 31 is externally inserted into the discharge port 3b from the drum axis X direction, and the inner peripheral surface thereof is sealed via a seal member 34 attached to the outer peripheral surface of the discharge port 3b. is doing. Then, between the discharge side opening 3d and the end wall 31a of the cover cylinder 31 which is positioned a predetermined distance away from the discharge side opening 3d in the drum axis X direction, the chute cylinder 32 A drop space 35 is formed.

The screw conveyor 29 is arranged inside the feeding cylinder part 33 from a position below the chute cylinder part 32 to the take-out port 28a, and the shaft part 29a of the screw conveyor 29 extends behind. The floor frame 2 is supported by the floor frame 2 via a bearing 36. The shaft portion 29a is connected to the drive motor 30 arranged at an eccentric position with the shaft portion 29a via a chain 30a. A disc 37a and a rotor 37b projecting from both sides of the disc 37a are fixed to the outer peripheral surface of the shaft 29a at an intermediate position. A cooling tank 38 is provided below the disc 37a and the rotor 37b. Is provided. Cooling water is circulated and supplied to the cooling tank 38 by a cooling water circulation system (not shown), and the disk 37a and a part of the rotor 37b are immersed in the cooling water to cool the shaft portion 29a. There is.

The discharge amount adjusting means 6 is a retaining plate 39 that is an opening / closing body that closes the lower portion of the discharge side opening 3d of the drum 3, and an operating means 40 that moves the retaining plate 39 forward and backward in the drum axis X direction. It has and. As shown in detail in FIG. 9, the retaining plate 39 is formed in a semicircular shape that matches the inner peripheral surface 3f of the lower half of the discharge port 3b, and the retaining plate 39 is in the closed state (FIG. 8). The outer peripheral edge 39a is positioned slightly away from the inner peripheral surface 3f of the discharge-side opening 3b in the state shown by the solid line in FIG.

As shown in detail in FIG. 10, the actuating means 40 includes a hydraulic cylinder 41 mounted on the end wall 31 a of the cover tubular portion 31 so as to be arranged in the drum axis X direction, and the hydraulic cylinder 41. And a pair of guide rods 42, 42 provided in parallel on both sides of the hydraulic cylinder 41. The tip ends of the cylinder rod 41a of the hydraulic cylinder 41 and the pair of guide rods 42, 42 penetrate the end wall 31a and are fixed to the retaining plate 39. The retaining plate 39 is expanded and contracted by the hydraulic cylinder 41. 39 is moved between the closed state and an opened state (state indicated by a chain double-dashed line in FIG. 8) that is translated from the closed state in the drum axis X direction, and is fixed at each moving position between the two states. The plate 39 is fixed in a stepless manner. That is, in the closed state, the lower half portion of the discharge side opening 3d is closed, and the retaining plate 39 prevents the carbide or carbonaceous material in the drum 3 from moving toward the sink space 35, and thus the open state. Then, between the discharge side opening 3d and the retaining plate 39 shown by the chain double-dashed line in FIG. 8, there is a gap S in the drum axis X direction in which the carbide in the drum 3 can drop into the chute cylindrical portion 32 with almost no resistance. The size of the gap S formed is adjusted in accordance with the movement of the retaining plate 39 between the closed state and the open state. In other words, by adjusting the size of the gap S, the amount of carbides that fall into the chute tube portion 32 is adjusted.

The flue gas treatment means 7 has a dry distillation gas intake pipe line 46, one end of which is attached to the upper surface of the cover cylinder portion 31 and communicates with the upper part of the drop space 35, and the dry distillation gas intake pipe line 46. And a blower 44 for sucking and discharging the separated gas from the condenser 43. In the smoke exhaust processing means 7, the high temperature dry distillation gas accumulated in the upper part of the drum 3 and the drop space 35 is sucked into the condenser 43 through the dry distillation gas intake pipe line 46 by the operation of the blower 44. As a result of the sucked high-temperature dry distillation gas being cooled and condensed by the condenser 43, it is separated into gas and liquid. When the carbonaceous material is wood, the dry distillation gas is separated into a liquid such as wood vinegar and combustible gas, the wood vinegar is recovered from the lower part of the capacitor 43, and the combustible gas is collected into the condenser 43. Is collected from the upper part of the blower through the blower 44.

Next, a processing procedure for carbonizing charcoal material such as waste wood by the carbonization apparatus having the above-mentioned configuration to recover charcoal charcoal is described. There are two methods of this processing procedure, batch processing and continuous processing, and either method may be used.

In the case of batch processing, first, the tilting hydraulic cylinder 8b is contracted to bring the drum 3 into a horizontal state. Next, the drum 3 is rotated by driving the drive motor 12, and the inside of the drum 3 is heated by the combustion means 19. Then, a carbonaceous material such as waste wood is charged into the hopper 20 of the supply section 4, and a predetermined amount of this carbonaceous material is supplied from the supply side opening section 3c into the drum 3 by the feeding means 21. Then, the carbonaceous material is heated at a predetermined temperature (for example, 300 to 700 ° C.) for a predetermined time (for example, several hours) while being stirred by the vane plates 16, 16, ... During this carbonization process, the retaining plate 39 of the discharge amount adjusting means 6 is closed, as shown in FIG. 11, so that the carbonaceous material or the carbide 45 in the drum 3 does not drop into the chute cylinder portion 32 of the discharge portion 5. To do so. It should be noted that the combustion means 19 may be brought into a full output state at an initial stage to raise the temperature, and when the temperature reaches a predetermined temperature, the output is stopped, and after that, it is treated with residual heat.

When the carbonaceous material is carbonized to a predetermined state and becomes charcoal such as charcoal, the tilting hydraulic cylinder 8b is extended while the drum 3 is being rotated to make the drum 3 in an inclined state and The means 40 is activated to open the retaining plate 39 as shown in FIG. As a result, the carbide 45 deposited on the bottom of the drum 3 slides on the inner peripheral surface of the bottom of the drum 3 and enters the chute cylindrical portion 32 from the gap S1 between the discharge side opening 3d and the retaining plate 39 due to gravity. It falls and the whole amount is discharged from the drum 3.

In the case of continuous processing, the initial operation is similar to the batch processing described above, in which a predetermined amount of carbonaceous material is supplied from the supply unit 4 into the drum 3 in the horizontal state, and the carbonaceous material is stirred at a predetermined temperature for a predetermined time. To heat. When a predetermined carbonized state is reached, the drum 3 is gently tilted, and the retaining plate 39 is fixed in a fixed amount discharge state in which it is retracted from the closed state by a predetermined amount as shown in FIG. The supply means 21 is operated to supply a relatively small amount of carbonaceous material into the drum 3. As a result, a certain amount of carbide 45 corresponding to the amount of the gap S2 between the retaining plate 39 and the discharge side opening 3d can be continuously dropped into the chute cylinder 32. After that, the supply of the carbon material and the discharge of the carbide 45 are continuously performed. In this case, the combustion means 19 may be brought to a full output state in the initial stage to raise the temperature, and when the temperature reaches a predetermined temperature, the output may be throttled to maintain the predetermined temperature.

In the case of this continuous treatment, when the carbonization rate is high depending on the type of carbonaceous material, the position of the retaining plate 39 is adjusted further backwards accordingly, and the space between the retaining plate 39 and the discharge side opening 3 d is adjusted. The gap S may be increased and the supply amount of the carbonaceous material may be increased accordingly. As a result, the amount of carbides falling onto the chute cylinder portion 32 increases as the gap S increases, so that the amount of carbides discharged can be adjusted to a desired amount. In addition, when it is desired to adjust the weight reduction, the fastening plate 39 may be moved forward in the opposite manner to the above.

In the case of the carbonization process by the carbonization device, since the guide rail 10a at the substantially central position of the drum 3 is fitted to the guide roller 9a with the flange, the drum axis relative to the floor frame 2 in the drum axis X direction. Relative movement of the drum 3 can be prevented, and the rotational operation state of the drum 3 can be maintained at a predetermined value.

Moreover, the side surface 14a of the flange 14 on the discharge port 3b side contacts the supporting roller 15, and the supporting roller 15 is positionally fixed on the floor frame 2 by the vertical axis Y orthogonal to the drum axis X. Therefore, the support roller 15 plays a role of a stopper for preventing the relative movement of the flange 14 toward the discharge portion 5, and thus the flange 14 is stopped from moving toward the discharge portion 5. Therefore, even when the drum 3 is inclined downward to the discharge outlet 3b, the drum 3 can be securely held so as not to move to the discharge portion 5 side, and the floor frame can be surely held. It is possible to reliably prevent the displacement of the drum 3 with respect to 2 toward the discharge port 3b side in the drum axis X direction. As a result, it is possible to reliably prevent the guide rails 10a and 10b from coming off the guide rollers 9a and 9b.

Moreover, the vertical axis Y is orthogonal to the drum axis X, that is, is positioned in the radial direction of the drum 3 with the drum axis X as the center, and the support roller 15 rotates about the vertical axis Y. Since the side surface 14a of the flange 14 is rollably contacted, the rotation of the drum 3 around the drum axis X can be guided. For this reason, the drum 3 in the inclined state can be reliably rotatably supported while preventing relative movement to the discharge portion 5 side. By these, the carbonization process by the present carbonization device can be reliably performed.

It should be noted that the present invention is not limited to the above-described embodiment, but includes various other modifications. That is, in the above embodiment, the flange 14 is formed at a position close to the supply port 3a of the drum 3, but not limited to this, it may be formed at another position in the drum axis X direction.

Further, in the above embodiment, the structure for preventing the relative movement of the central position of the drum 3 in the direction of the drum axis X is constituted by the combination of the guide rail 10a and the two flange portions 9c and 9c of the guide roller 9a. However, the present invention is not limited to this, and contrary to the above configuration, the outer peripheral surface of the guide roller may be flat, and the guide roller may be guided by an annular groove formed on the outer peripheral surface of the drum. ..

Further, although waste wood is used as the carbonaceous material in the above embodiment, the present invention is not limited to this, and any organic solid material such as animals and plants can be used.

[0041]

[Effect of the device]

 As described above, according to the carbonizing apparatus of the first aspect of the present invention, the discharge flange side surface of the annular flange fixed to the outer peripheral surface of the drum contacts the support roller, and the support roller is attached to the drum shaft. Since the position is fixed on the frame by the orthogonal shafts, the relative movement of the flange toward the discharge port side in the drum axial direction can be stopped by this support roller. For this reason, even when the drum is inclined so as to have a downward slope toward the discharge port, the drum can be securely held so as not to move toward the discharge port side in the drum axial direction. It is possible to reliably prevent the above-mentioned displacement of the drum to the discharge side in the drum axial direction. As a result, it is possible to reliably prevent the drum from falling off the pedestal that rotatably supports the drum.

Moreover, since the support roller is rotated around an axis positioned in the radial direction of the drum to be rollably proximate to the side surface of the flange, the drum in the inclined state is It is possible to reliably support in a rotatable state while preventing relative movement toward the discharge port in the axial direction. As a result, the carbonization treatment of the carbonaceous material by the present carbonization device can be reliably performed.

[Brief description of drawings]

FIG. 1 is an overall view showing an embodiment of the present invention.

2 is an overall view of the drum in FIG. 1 in a tilted state.

3 is a partially omitted enlarged cross-sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged vertical sectional view of a drum.

FIG. 5 is an enlarged cross-sectional view of a supply unit.

6 is a cross-sectional view taken along the line BB of FIG.

7 is a cross-sectional view taken along the line CC of FIG.

FIG. 8 is an enlarged cross-sectional view of a discharge unit.

9 is a cross-sectional view taken along the line DD of FIG.

10 is a cross-sectional view taken along the line EE of FIG.

FIG. 11 is a schematic view showing a state of carbides in a closed state of a retaining plate.

FIG. 12 is a simplified diagram showing a state of carbides in an opened state of a retaining plate.

FIG. 13 is a simplified diagram showing a state of carbide in a fixed amount discharge state in which a retaining plate is at an intermediate movement position.

[Explanation of symbols]

 2 Floor frame (frame) 3 Drum 3a Supply port 3b Discharge port 14 Flange 14a Flange discharge side surface 15 Support roller X Drum shaft Y Shaft orthogonal to drum shaft

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Toshiaki Narada 3-4-2, Shite, Tsurumi-ku, Yokohama-shi, Kanagawa Shinmeiwa Industry Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A drum constituting a dry distillation furnace, comprising: a drum having a supply port at one of both end portions in the drum axial direction and a discharge port at the other end; and a drum rotatably supported around the drum shaft. In a carbonization device in which the drum is arranged in an inclined state in which the drum has a downward slope toward the discharge port, the drum has an annular flange protruding from the outer peripheral surface at an appropriate position in the drum axial direction to the outer peripheral direction. And a support roller that rotates around an axis orthogonal to the drum axis and rollably faces the discharge port side surface of the flange. A carbonization device characterized by the above.