JP2008106221A - Carbonization apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new carbonization apparatus which exhibits unprecedented workings. <P>SOLUTION: The carbonization apparatus heats and carbonizes materials to be carbonized 1 and is provided with material transportation and carbonization part 3 of a specific length in which the materials to be carbonized 1 are carbonized while they are being transported. The material transport and carbonization part 3 has material-dropping means 4 which drops the materials to be carbonized 1 during the process of the carbonization and material guide means 5 which guides the lighter materials to be carbonized 1 out of the materials to be carbonized 1 fallen by the material-dropping means 4 or in the process of falling for a longer distance in the direction of transport than the heavier materials to be carbonized 1 and discharges them from the material transport and carbonization part 3. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a carbonization apparatus for heating and carbonizing an object to be carbonized.

  For example, carbonization apparatuses (hereinafter referred to as conventional examples) disclosed in, for example, JP-A-10-17311 and JP-A-2006-104284 have been proposed as carbonization apparatuses that heat waste to make charcoal.

  This conventional example is a structure in which a carbonized tube maintained in a low oxygen atmosphere is installed substantially horizontally in a carbonization furnace, and the carbonized material conveyed by the screw conveyor is heated from the outside of the carbonized tube and dry-distilled to obtain charcoal. .

  In the case of this conventional example, since the carbonization work is performed without bringing the carbonized material into direct contact with the flame, it is possible to prevent the carbonized material from becoming ash as much as possible and to produce good quality charcoal. It is said. The charcoal produced in this way is not limited to use as a fuel, but is effectively used in various fields such as soil improvement materials.

JP-A-10-17311 JP 2006-104284 A

  By the way, when carbonizing the object to be carbonized, the heating time until carbonization depends on the type (various conditions such as material, size, moisture content, etc.). This is done by changing the heating time by changing the conveying speed of the screw conveyor according to the type of carbide.

  However, the conventional example cannot perform good treatment when different types of carbides are mixed. That is, for example, when processing a plurality of types of carbides having different moisture contents, if processing is performed according to settings corresponding to the carbides having a high moisture content, the heating time is increased by slowing the screw conveyor conveyance speed. If the material to be carbonized with a low water content becomes ash, it will be discharged from the discharge part. The conveying speed of the conveyor is increased to shorten the heating time, and the carbonized material having a high water content is discharged from the discharge portion while being semi-burned (semi-lived state).

  Therefore, the conventional example has a problem that only the same type of carbide can be processed, and even if the same type of carbide, there are many cases where the conditions such as the difference in size and moisture content are different, and the quality is high. There is a problem that stable charcoal cannot be obtained stably.

  In view of the above-described problems, the present invention provides an epoch-making carbonization device that exhibits unprecedented effects.

  The gist of the present invention will be described with reference to the accompanying drawings.

  A carbonization apparatus that heats and carbonizes the object to be carbonized 1, and has a carbonized object conveying carbonization part 3 having a predetermined length that carbonizes the object 1 while conveying the object 1, and The to-be-carburized object dropping means 4 for dropping the to-be-carburized object 1 and the to-be-carburized object 1 falling by the to-be-carburized object dropping means 4 or the falling to-be-carburized object 1 The present invention relates to a carbonization apparatus comprising: a carbide guiding means 5 that is guided in a conveying direction by a distance longer than that of the carbide 1 and is derived from the carbide conveying carbonization unit 3.

  Further, in the carbonization apparatus according to claim 1, the carbide dropping means 4 is configured to drop the carbide 1 in a conveying direction or a reverse conveying direction after raising the carbide 1 to a predetermined height position. This relates to a carbonizing apparatus characterized by the above.

  The carbonization apparatus according to any one of claims 1 and 2, wherein the to-be-carburized guidance means 5 is an air flow that flows down in the to-be-carburized carrying carbonization section 3 in the carrying direction. It concerns the device.

  Moreover, the carbonization apparatus of any one of Claims 1-3 WHEREIN: The said to-be-carburized conveyance carbonization part 3 is the cylindrical rotary body 25, It concerns on the carbonization apparatus characterized by the above-mentioned.

  5. The carbonization apparatus according to claim 4, wherein the carbide dropping means 4 is provided on the inner surface of the rotating body 25, and the feed blade body 6 that protrudes inward in the transport direction and inclines toward the tip side, and the feed blade body 6. The carbonization apparatus is characterized by comprising a feed blade body 6 provided at a position opposed to the blade body 6 and a return blade body 7 whose inclination direction is opposite.

  Moreover, the carbonization apparatus of any one of Claims 1-5 WHEREIN: The said to-be-carburized conveyance carbonization part 3 is carbonized, conveying the said to-be-carburized 1 by the said to-be-carburized dropping means 4 and the said to-be-carbide to-be-carburized means 5. Thus, the carbonization apparatus is characterized in that it is derived from the carbonized article transport carbonization section 3.

  Moreover, the carbonization apparatus of any one of Claims 5 and 6 concerns the carbonization apparatus characterized in that a plurality of the opposed feed blade bodies 6 and return blade bodies 7 are arranged in parallel.

  Moreover, the carbonization apparatus of any one of Claims 1-7 WHEREIN: In the downstream part rather than the site | part in which the said to-be-carbide falling means 4 is provided in the to-be-carburized conveyance carbonization part 3, the said to-be-carbide 1 The carbonization apparatus is characterized by being provided with a forcible transport means 8 for forcibly transporting.

  Further, in the carbonization apparatus according to claim 8, the forced conveying means 8 is located at a low speed conveyance area 8A for conveying the article 1 to be carbonized at a low speed, and downstream of the low speed conveyance area 8A, and the low speed area 8A. And a high-speed transfer region 8B having a higher speed for transferring the article 1 to be carbide is provided.

  Further, in the carbonization apparatus according to claim 9, the forced conveying means 8 is a spiral feed blade body 9A, 9B that protrudes inward and inclines toward the distal end side, and the low-speed conveying region 8A and the In the high-speed conveyance area 8B, the inclination degree of the feeding blade bodies 9A and 9B is set to be different from each other.

  Since the present invention is configured as described above, an extremely efficient carbonization treatment is performed, and an innovative carbonization that exhibits unprecedented effects such as high-quality charcoal can be obtained reliably and stably. It becomes a device.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  The to-be-carburized object 1 is carbonized and becomes charcoal while being conveyed by the to-be-carburized object conveying carbonization unit 3.

  By the way, the to-be-carburized conveyance carbonization part 3 of the present invention includes a to-be-carburized dropping means 4 for dropping the to-be-carburized 1 at the time of carbonization, and a to-be-fallen or dropped to-be-falling to-be-carbide 1 by the to-be-carburized dropping means 4. And a carbide guiding means 5 for guiding the light-weight to-be-carbide 1 in the conveying direction by a longer distance than the heavy-to-be-carburized 1 and deriving from the to-be-carburized conveying carbonized portion 3. It will exhibit a periodical effect.

  Specifically, as described above, in the conventional example, when the carbides 1 having different types (moisture contents) are to be processed, the different types of carbides 1 are simultaneously conveyed. However, since the present invention includes the above-described carbide dropping means 4 and the carbide guiding means 5 in the carbide conveying carbonization section 3, for example, the carbide to be carbide having a high water content and a heavy weight. 1 is carefully heated, while the light-weight to-be-carburized object 1 with a low water content is conveyed early while being heated early. That is, it is conveyed from the light thing among the to-be-carburized objects 1 to the downstream side of the to-be-carburized object conveying carbonization part 3.

  Therefore, heating corresponding to the type of the object to be carbide 1 is always performed, and an extremely efficient carbonization process is performed, so that high-quality charcoal can be obtained reliably and stably.

  Specific embodiments of the present invention will be described with reference to the drawings.

  The present embodiment is a carbonization apparatus that heats and carbonizes the object to be carbonized 1, and has a carbonized object conveying carbonization part 3 of a predetermined length that carbonizes while conveying the object 1, and this object conveying carbonization part 3. Is a carbide dropping means 4 for dropping the carbide 1 during carbonization, and the carbide 1 having a light weight among the carbides 1 dropped or dropped by the carbide dropping means 4. And a to-be-carburized material guiding means 5 for guiding from the to-be-carburized material-conveying carbonized portion 3 by guiding the material in the conveying direction by a distance longer than that of the heavy material-to-be-carburized 1.

  Specifically, the heating chamber 2 is an inner space of a box-like base 10 formed of an appropriate metal member as shown in FIG. 1 and is described later with a burner device 11 provided at a predetermined position of the base 10. It is comprised so that the to-be-carburized object conveyance carbonization part 3 to be heated may be heated. In addition, a present Example is comprised as a badge type carbonization apparatus which carbonizes in a low-oxygen atmosphere by making the heating chamber 2 into a sealed space.

  In addition, the heating chamber 2 is provided with a to-be-carburized transport carbonization unit 3 that transports the to-be-carburized 1.

  As shown in FIG. 1, the to-be-carburized material conveying carbonization unit 3 is configured to rotate by driving the driving device 12 to convey the to-be-carburized material 1 inside and carbonize it by the heat in the heating chamber 2.

  Specifically, as shown in FIG. 1, a metal tubular rotator 25 is provided between the left and right side walls 10 a and 10 b of the base 10 in a horizontal state and arranged in the heating chamber 2. A sprocket 16 around which a chain 15 extending from the driving device 12 is wound is provided at the end, and the rotating body 25 is rotatably provided by the driving of the driving device 12.

  Further, the base end of the rotating body 25 is set as a steam vent for releasing the steam generated by the carbonization treatment to the steam vent pipe 20, and the tip of the rotating body 25 is heated and carbonized. It is set in a discharge section that discharges and discharges the primary combustion gas (a combustible gas containing Co) to the degassing pipe 19.

  Further, on the base end side of the rotating body 25, there is provided a carbide dropping means 4 for causing the carbide 1 to be raised to a predetermined height position with the rotation of the rotating body 25 and then obliquely dropping in the conveying direction or the reverse conveying direction. ing.

  The carbide dropping means 4 is provided on the inner surface of the rotating body 25, and is provided at a position opposite to the feed blade body 6 and the feed blade body 6 that protrudes inward in the transport direction and inclines toward the tip side. It is the structure by which the body 6 and the return blade body 7 from which an inclination direction is opposite were arranged in multiple numbers.

  As shown in FIG. 2, the feed blade body 6 is formed by forming an appropriate metal plate material in a C shape, and the cross section of the feed blade body 6 is formed in a curved shape.

  The base end portion 6 a (the edge of the large diameter portion) of the feed blade body 6 is welded to a predetermined position on the inner surface of the rotating body 25, and the distal end portion of the feed blade body 6 is the inner surface of the rotating body 25. In contrast, the tip end side is provided in an inclined state so as to project inward and inward so as to be about 40 °.

  As shown in FIG. 2, the return blade body 7 is formed by forming an appropriate metal plate material in an inverted C shape, and the return blade body 7 has a curved cross-sectional shape.

  Further, the base end portion 7 a (the edge of the large diameter portion) of the return blade body 7 is welded to a predetermined position on the inner surface of the rotating body 25, and the distal end portion of the return blade body 7 is the inner surface of the rotating body 25. In contrast, the tip end side is provided so as to be inclined in the reverse conveying direction and inward so as to be about 40 °.

  The cutout portions 6d and 7d of the feed blade body 6 and the return blade body 7 are positions where the top and bottom are reversed. The solid line portion in FIG. 3 is the feed blade body 6, and the two-dot chain line portion is the return blade body 7.

  From the above configuration, the to-be-carburized dropping means 4 is inclined in the transport direction or the reverse transport direction after raising the to-be-carburized 1 to a predetermined height position with the rotation of the rotating body 25 by the feed blade body 6 and the return blade body 7. It will fall.

  Specifically, as shown in FIG. 4-A, the to-be-carburized object 1 received by the feed blade body 6 is lifted upward by the rotation of the rotating body 25, and then passes through the cutout portion 7d of the return blade body 7. As shown in FIG. 4B, the carbide 1 received by the return blade body 7 is lifted upward, and then passes through the notch 6d of the feed blade body 6 to be reversed. Drop diagonally in the transport direction. When the article to be carbide 1 falls obliquely by the feed blade body 6 and the return blade body 7, the light article 1 having a low moisture content and light weight is sent in the conveying direction by an air flow as the article-to-be-carburized guiding means 5 described later. The heavy to-be-carburized object 1 with a high water content falls directly below or falls obliquely at a short distance in the direction in which the feed blade body 6 and the return blade body 7 are inclined (conveying direction or reverse conveying direction). In addition, the to-be-carburized object 1 is raised to a predetermined height position by the feed blade body 6 and the return blade body 7 is in a state where the to-be-carburized object 1 has moisture and adheres to the feed blade body 6 and the return blade body 7. Because. In consideration of improving the adhesion of the carbide 1, the surface may be roughened to increase the frictional resistance of the feed blade body 6 and the return blade body 7.

  Subsequently, as shown in FIG. 4-C, the to-be-carburized object 1 having sufficiently evaporated water is reduced in weight, and therefore, the return vane that has been received by being guided by the to-be-carburized object guiding means 5 at the time of the oblique fall. It is sent in the transport direction over the body 7.

  Although not shown, the carbide 1 attached to the inner surface of the rotating body 25 may be raised to an upper position and dropped from that position.

  By the feed blade body 6 and the return blade body 7 related to the carbonized material dropping means 4, the carbonized material 1 having a high moisture content is heated while being stirred (squeezed), so that moisture is sufficiently blown away ( Dry combustion effect is exerted).

  Moreover, the to-be-carburized conveyance carbonization part 3 is longer than the said to-be-carburized object 1 with a heavy weight of the to-be-carburized object 1 with a light weight among the to-be-carburized objects 1 which fall by the to-be-carburized object fall means 4 Carbide material guiding means 5 for guiding the distance in the conveying direction is provided.

  The to-be-carburized guidance means 5 is a flow of air in the conveying direction that naturally occurs in the to-be-carburized conveying carbonization section 3 when the primary combustion gas (exhaust gas combusted in the heating chamber 2) is combusted in the secondary combustion chamber 22 described later. (Draft action), and this air flow induces the article to be carbide 1 in the conveying direction. In addition, as the to-be-carburized guidance means 5, it is good also as a structure which provides a fan etc. and forcibly flows down air in the to-be-carburized material conveyance carbonization part 3, for example. Moreover, the air as the to-be-carburized guidance means 5 said by a present Example also includes the primary combustion gas which generate | occur | produces in the to-be-carburized material conveyance carbonization part 3. FIG.

  In this embodiment, the rotational speed of the rotating body 25 is appropriately adjusted, and further, the combustion in the heating chamber 2 and the secondary combustion chamber 22 is appropriately adjusted to obtain a desired air flow. It is comprised so that can be obtained.

  The carbonized material dropping means 4 having the above configuration, that is, the plurality of feed blade bodies 6 and the return blade body 7 and the carbonized material guiding means 5 perform proper carbonization conveyance according to the weight of the carbonized material 1, and the carbonized well. Is transported to the forced transport means 8 provided on the front end side of the carbonized material transport carbonization section 3.

  The inventor has confirmed by experiments that good carbonization is performed by the drop in the transport direction or the reverse transport direction by the feed blade body 6 and the return blade body 7 and the air flow.

  The forced conveying means 8 is located at a low speed conveying area 8A for conveying the carbide 1 at a low speed and downstream of the low speed conveying area 8A, and has a higher speed for conveying the carbide 1 than the low speed area 8A. And a high-speed conveyance area 8B.

  This forced conveying means 8 is composed of feed blade bodies 9A and 9B in which an appropriate metal plate material is spirally formed, and the feed blade body 9A is provided in a state of projecting inward and inclining toward the tip side. It has been. Further, the protruding length of the feed blade body 9A from the rotating body 25 is set to about two thirds of the feed blade body 6 described above.

  Further, the feed blade body 9A has a base end portion 9A 'welded to a predetermined position on the inner surface of the rotating body 25, and is provided so as to be approximately 35 ° with respect to the inner surface of the rotating body 25.

  On the other hand, the feed blade body 9B is provided in a state in which it protrudes inward in the transport direction and inclines toward the tip side. Further, the protruding length of the return blade body 9B from the rotating body 25 is set to about half of the above-described feed blade body 9A, and the helical pitch is set to be shorter than that of the feed blade body 9A.

  Further, the return blade body 9B has a base end portion 9B 'welded to a predetermined position on the inner surface of the rotating body 25, and is provided so as to be about 20 ° with respect to the inner surface of the rotating body 25.

  The low-speed conveyance region 8A is set so that the conveyance speed for conveying the carbide 1 is slower than the conveyance speed by the feed blade body 9B, and it takes a relatively long time for the carbide 1 that has passed through the carbide falling part 4 to pass. (The natural combustion effect of burning the dry distillation gas of organic materials is demonstrated).

  The high-speed conveyance area 8B is set so that the conveyance speed for conveying the carbide 1 is about twice the conveyance speed in the low-speed conveyance area 8A described above, and is heated by the feed blade body 9A to become charcoal. It is a part which finishes heating while conveying quickly so that the to-be-carburized 1 may not become ash (adjustment combustion action is exhibited).

  Moreover, the to-be-carburized conveyance carbonization part 3 is provided with the to-be-carburized supply part 17 which supplies the to-be-carburized substance 1 to this to-be-carburized conveyance carbonization part 3 in the base end part.

  As shown in FIG. 1, the carbide supply unit 17 includes a rotating shaft 17c having a spiral blade 17d projecting on a peripheral surface rotated by a driving device 17b. The carbide supply part 17 is provided with a hopper body 17a.

  Moreover, the to-be-carburized material conveyance carbonization part 3 is provided with the charcoal discharge part 18 which discharges the processed charcoal carbonized at the front-end | tip part.

  As shown in FIG. 1, the charcoal discharge unit 18 includes a spiral blade 18d projecting on a circumferential surface rotated by a driving device 18b in a charcoal passage pipe 18a connected to the tip of the rotary body 25. The moving shaft 18c is arranged.

  Further, a steam vent pipe 20 is connected to the base end portion of the carbonized material transport carbonization unit 3, and further, the carbonized gas generated by the carbonization treatment of the material to be carbonized 1 is discharged to the distal end portion of the carbonized material transport carbonization unit 3. A degassing pipe 19 is continuously provided.

  The steam vent pipe 20 and the gas vent pipe 19 are respectively connected to an exhaust portion 10c provided at the top center of the base body 10, and the pipe body 21 provided on the exhaust portion 10c is a secondary combustion chamber. Connected to 22.

  The secondary combustion chamber 22 is an inner space of a box-like body 23 formed of an appropriate metal member as shown in FIG. 1, and is ignited by the burner device 24 of the exhaust part 10c, so that the primary combustion gas is completely Is burned. Reference numeral 26 denotes an oxygen supply unit.

  Accordingly, the dry distillation gas generated by the carbonization process in the heating chamber 2 is combusted in the secondary combustion chamber 22, so that clean exhaust is discharged from the exhaust cylinder 23 a provided at the upper portion of the box-like body 23. The

  Since the present embodiment is configured as described above, the article to be carbide 1 is carbonized while being conveyed by the article-conveying carbonization unit 3 to be charcoal.

  In the present embodiment, the to-be-carburized transporting carbonization unit 3 includes the to-be-carburized dropping means 4 and the to-be-carburized guiding means 5. The to-be-carburized material 1 having a small content and a light weight is conveyed early to the downstream side while being heated early.

  In addition, it is desirable to reduce the moisture content to 50% or less in advance for the carbide 1 having a high moisture content when the carbide 1 is introduced into the carbide supply unit 17 according to the present embodiment. Note that the mixing ratio of the material having a low water content can be obtained by appropriate calculation.

  Specifically, the moisture content of the to-be-carburized object 1 is reduced by mixing the to-be-carburized object 1 having a high moisture content with a material having a low moisture content. As a material to be mixed in order to reduce the moisture content of the carbonized object 1, a material having water absorption and capable of being carbonized itself (for example, rice husk) is desirable, and the moisture content of the carbonized object 1 is reduced. Thus, the carbonization rate will be dramatically improved, and the cost (running cost, etc.) will be superior (effectively compared to the conventional mechanical dehydration method using energy). .)

  Therefore, according to the present embodiment, heating corresponding to the type (variation of materials) of the object to be carbide 1 is performed, and extremely efficient carbonization treatment is performed, and high-grade charcoal is obtained reliably and stably. Will be.

  Further, in this embodiment, as the carbonized article dropping means 4 that heats the carbonized article transporting carbonization section 3 in accordance with the weight (water content) of the article 1 to be carbonized, the feed blade body 6 is disposed at a position opposite to the feed blade body 6. Since the structure composed of the return blade body 7 whose tilt direction is opposite is employed, the simplified structure is excellent in mass productivity, and the carbide 1 as in the conventional example described above is simply advanced downstream. Compared with the structure to be heated, even if the length of the carbonized article transporting carbonization section 3 is short, sufficient heating can be performed in accordance with the moisture content of the article to be carbide 1, and thus the apparatus itself can be reduced in size and weight. As a result, it can be made mobile due to this small size and light weight, and unlike the conventional example described above, it can be carried to the place where the object to be carbonized 1 is generated and carbonized. It becomes.

  In the present embodiment, the carbide guiding means 5 conveys the carbide when the primary combustion gas (exhaust gas combusted in the heating chamber 2) is combusted in the secondary combustion chamber 22 which is essential in this type of apparatus. Since the structure utilizes the air flow (draft action) in the conveying direction that occurs naturally in the carbonizing section 3, no special device is required to pump the air, which is extremely economical.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is explanatory sectional drawing of a present Example. It is a description perspective view of the principal part concerning a present Example. It is explanatory drawing of the principal part which concerns on a present Example. It is operation | movement explanatory drawing of the principal part which concerns on a present Example. It is a description perspective view of the principal part concerning a present Example. It is operation | movement explanatory drawing of the principal part which concerns on a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Carbide 3 Carbide conveyance carbonization part 4 Carbide fall means 5 Carbide guidance means 6 Feed blade body 7 Return blade body 8 Forced conveyance means 8A Low speed conveyance area 8B Infarct conveyance area 9A Feed blade body 9B Feed blade body
25 Rotating body

Claims (10)

  A carbonization apparatus that heats and carbonizes a material to be carbonized, and has a carbonized material conveying carbonization portion having a predetermined length that carbonizes while conveying the material to be carbonized, and the carbonized material conveying carbonization portion is the carbonized material during carbonization. Of the carbonized material dropping means for dropping the carbonized material, and the falling of the carbonized material falling by the carbonized material dropping means in the conveying direction by a distance longer than the heavy weight of the carbonized material. A carbonization apparatus, comprising: a carbonized material guiding means for guiding and deriving from the carbonized material transport carbonization unit.   The carbonization apparatus according to claim 1, wherein the carbide dropping means is configured to drop the carbide to be obliquely dropped in a conveyance direction or a reverse conveyance direction after being raised to a predetermined height position. Carbonization equipment.   The carbonization apparatus according to claim 1, wherein the carbide guiding means is an air flow that flows down in the conveyance direction within the carbonization carbonization unit.   The carbonization apparatus of any one of Claims 1-3 WHEREIN: The said to-be-carburized conveyance carbonization part is a cylindrical rotary body, The carbonization apparatus characterized by the above-mentioned.   5. The carbonization apparatus according to claim 4, wherein the carbide dropping means is provided on an inner surface of the rotating body, and a feed blade body that protrudes inward in the transport direction and inclines toward the tip side, and a position opposite to the feed blade body. A carbonization apparatus comprising: a feeding blade body and a return blade body whose inclination direction is opposite to each other.   6. The carbonization apparatus according to claim 1, wherein the to-be-carburized conveying carbonization unit carbonizes the to-be-carburized object by conveying the to-be-carburized object by the to-be-carburized dropping unit and the to-be-carburized guiding unit. A carbonization apparatus derived from a carbonization section.   7. The carbonization apparatus according to claim 5, wherein a plurality of the opposed feed blade bodies and the return blade bodies are arranged in parallel.   The carbonization apparatus of any one of Claims 1-7 WHEREIN: The forced conveyance which forcibly conveys the said to-be-carburized object in the downstream part rather than the site | part in which the said to-be-carbide falling means is provided in the said to-be-carburized object conveyance carbonization part. A carbonization device characterized in that means are provided.   9. The carbonization apparatus according to claim 8, wherein the forced conveying means is located at a low speed conveyance area for conveying the carbonized object at a low speed, and is located downstream of the low speed conveyance area, and conveys the carbonized object from the low speed area. And a high-speed transfer area having a high speed.   The carbonization apparatus according to claim 9, wherein the forced conveying means is a spiral feed blade body that protrudes inward and inclines toward the leading end side, and in the low-speed conveyance region and the high-speed conveyance region, A carbonization apparatus, wherein the inclination degree of the feed blade body is set to be different.

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