JP2004043708A - Carbonizing and fractionating apparatus and carbonizing treatment method of waste - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carbonizing and fractionating apparatus and carbonizing treatment method of waste, capable of continuously practicing steps from carbonization of a material to be treated such as waste to fractionation of the material by one apparatus and capable of readily removing a metal, etc., mixed in the waste in a high efficiency at low facility cost and operation cost. <P>SOLUTION: The carbonizing and fractionating apparatus has a rotating retort furnace 1 equipped with a beater member 22 arranging a plurality of wing pieces 24 in a furnace core pipe 2. In the carbonizing and fractionating apparatus, the rotating retort furnace 1 is equipped with a carbonization area for carrying out carbonizing treatment of the material to be treated and a fractionating area for fractionating the carbonized material to be treated into a carbonized material of an atomized inflammable substance and a substance other than the carbonized material. The inflammable material in the waste such as municipal waste is taken out as atomized carbonized material or active carbonized material and an incombustible material such as metals mixed in the waste can efficiently be removed by the carbonizing and fractionating apparatus. <P>COPYRIGHT: (C)2004,JPO

Description

【００３２】
同表より明らかなように、比較例１に対して、実施例１及び実施例２については、処理能力（効率）が大幅に上昇し、処理時間が短縮されることがわかる。
【００３３】
次に、本発明にかかる炭化分別装置のもう一つの実施例について、図４を参照しながら説明する。すなわち、前記炭化処理方法及び炭化分別装置において、スチームを吹き込むことにより活性炭化を行う方法及び装置について説明する。尚、本実施例において、図１乃至図３に示した上記実施例と同様の構成要素については、同一の参照番号を付して詳細説明を省略する。
【００３４】
本実施例においても、ビーター部材２２を挿入した回転レトルト炉１を使用し、この回転レトルト炉１は、円筒状の炉芯管２と、保温部３と、ヒーター５等で構成され、炉芯管２を、その軸芯を中心として減速回転させるため、スプロケット１６と、モータ１７と、スプロケット１８と、チェーン１９とが配置される。
【００３５】
炉芯管２の前部入口側には、ホッパ１０と、案内羽根９とが配置され、案内羽根９は、軸９ａ、スプロケット１１、チェーン１４、スプロケット１３を介してモータ１２によって回転する。また、炉芯管２の後端部は、被処理物取出室４０内に挿入されて開放され、ビーター部材２２が炉芯管２の外に出るのを防止し、スチーム吹き込み管４１を炉芯管２内に入れるため、十字形の枠体２０がストッパとして開口部より若干内側に固定される。
【００３６】
炉芯管２の内部には、図３に示すような複数のビーター部材２２が挿入される。また、図４に示すように、炭化領域には、３基のヒーター５Ａ〜５Ｃが配置され、ヒーター５Ａは乾燥処理温度を、ヒーター５Ｂは炭化処理温度を、ヒーター５Ｃは活性炭化処理温度（賦活処理温度）を各々独立して制御できる。各々の適正温度は、乾燥処理温度が５０〜３００℃、炭化処理温度が２５０℃〜７５０℃、活性炭化処理温度が７００℃〜１０００℃である。また、各領域の滞留時間は、乾燥領域が３〜３０分、炭化領域が１〜５０分、活性炭化領域が５〜１２０分とすることが好ましい。分別領域には、篩３１が設けられる。
【００３７】
スチーム吹き込み管４１は、出口側より炉芯管２内に挿入され、ビーター部材２２との接触を防ぐため、出口より若干内側に設置された十字形の枠体２０より外側に導入される。但し、別の実施の形態として、廃棄物投入側からスチームを吹き込むことも可能である。
【００３８】
次に、上記構成を有する炭化分別装置を用いた廃棄物の処理方法について説明する。
【００３９】
発生現場等から受け入れた都市ゴミ等の廃棄物を、解砕機で解砕して廃棄物をホッパ１０に投入した後、炉芯管２を２〜３０ｒｐｍ程度の速度で、０．５〜８°程度の傾斜角で回転させ、炉芯管２を間接的に加熱し、炉芯管２内の温度を、先に示したように、５０〜１０００℃程度に維持する。
【００４０】
モータ１２を回転駆動することにより、案内羽根９を回転させ、廃棄物をホッパ１０から炉芯管２へ供給する。供給量は、充填率３〜２５％程度であり、炉内の水蒸気分圧が０．０５〜０．４になるように水蒸気をスチーム吹き込み管４１より吹き込むと、廃棄物は、炉芯管２内において、ビーター部材２２とともに転動し、炉芯管２内で流動しながら炉芯管２の内壁に接触し、炉芯管２の入口側から出口側へと移動して乾燥、炭化、活性炭化し、活性炭化物となる。
【００４１】
この方法では、ビーター部材２２がヒーター５からの熱を効率よく廃棄物に伝えるとともに、ビーター部材２２の翼片２４と炉芯管２の内壁とで囲繞された空間内で廃棄物を蒸し焼き状態にすることができて熱効率が上昇し、さらに粉砕による反応性の向上により廃棄物の処理効率が上昇し、全体の処理時間を短縮することができる。また、廃棄物が炉芯管２内で乾燥、炭化、活性炭化（賦活）されると同時に、ビーター部材２２によって打撃、攪拌、混合され、炭化によって脆くなった廃棄物が粉砕されるため、回転レトルト炉の後の粉砕工程を省略することができる。廃棄物に混入した金属等の不燃物は、炉芯管２内で粉砕されにくく、分別領域において容易に分別することができる。
【００４２】
【発明の効果】
以上説明したように、本発明によれば、炭化効率が高く、短時間で炭化処理を行うことができ、設備コスト及び運転コストが低く、廃棄物に混入した金属等についても容易に除去することのできる廃棄物の炭化処理方法、及び廃棄物等の被処理物の炭化から分別までの工程を連続して一基の装置で実施することができ、高効率で、設備コスト及び運転コストが低く、廃棄物に混入した金属等も容易に除去することができる炭化分別装置を提供することができる。
【図面の簡単な説明】
【図１】本発明にかかる炭化分別装置の一実施例を示す縦断面図である。
【図２】図１の炭化分別装置を示す横断面図である。
【図３】本発明にかかる炭化分別装置の回転レトルト炉のビーター部材の一例を示す斜視図である。
【図４】本発明にかかる炭化分別装置の他の実施例を示す縦断面図である。
【符号の説明】
１　　　　　　回転レトルト炉
２　　　　　　炉芯管
３　　　　　　保温部
５Ａ　　　　乾燥用ヒーター
５Ｂ　　　　炭化用ヒーター
５Ｃ　　　　活性炭化（賦活）用ヒーター
６　　　フランジ
９　　　　　　案内羽根
９ａ　　軸
１０　　　　ホッパ
１１　　　　スプロケット
１２　　モータ
１３　　　　スプロケット
１４　　チェーン
１６　　スプロケット
１７　　モータ
１８　　スプロケット
１９　　チェーン
２０　　十字形の枠体
２２　　ビーター部材
２３　　中心軸部
２４　　翼片
３１　　　　篩
４０　　不燃物取出室
４１　　スチーム吹き込み管
４２　　マントル
４３　　ロータリーバルブ
４４　　マントル[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a carbonization and separation apparatus for carbonizing and separating an object to be treated such as waste, and a carbonization treatment method for waste using the apparatus and the like.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a technique of carbonizing waste such as municipal waste and waste wood using a rotary retort furnace to obtain a carbide has been known. This rotary retort furnace is a rotary kiln type (external heat kiln) device of an indirect heat exchange type, in which a furnace core tube arranged substantially horizontally is rotatable around its axis, and A device in which a heating device is provided on the outside to move the waste in the rotating furnace core tube and contact the inner wall of the furnace core tube while moving the waste material from the inlet side to the outlet side of the furnace core tube to obtain carbide. .
[0003]
[Problems to be solved by the invention]
However, in the conventional waste carbonization method using the rotary retort furnace, the carbonization efficiency is low, and the carbonization process requires a long time. In addition, since the processed material is discharged as a large lump from the furnace core tube, it is necessary to install a pulverizing facility at a subsequent stage of the rotary retort furnace, and there is a problem that the facility cost increases. Furthermore, when non-carbonized incombustible substances such as metals mixed into waste are crushed by the crushing equipment, there is a problem that it is not easy to remove impurities from the carbides.
[0004]
In addition, when carbonizing, pulverizing, and sorting wastes, installing a plurality of independent devices requires the connection of independent devices and the need for individual installation spaces, resulting in enormous equipment costs as a whole. In addition to this, not only the maintenance of the device itself but also the maintenance of the connection parts of the individual devices are required, which causes a problem that the maintenance cost and the operating cost increase.
[0005]
Therefore, the present invention has been made in view of the problems in the above-described conventional waste carbonization method, and has a high carbonization efficiency, can perform carbonization processing in a short time, has low equipment costs, and has a low disposal cost. It provides a method of carbonizing waste that can easily remove even metals and the like mixed into the waste.Furthermore, the process from carbonization to separation of the waste to be treated is separated by a single device. It is an object of the present invention to provide a carbon fractionating apparatus that can be implemented, is highly efficient, has low equipment costs and operating costs, and can easily remove metals and the like mixed into waste.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is a carbonization sorting apparatus having a rotary retort furnace including a beater member having a plurality of blade pieces arranged in a furnace core tube, wherein the rotary retort furnace includes: It is characterized by comprising a carbonization processing region for carbonizing the object to be processed, and a separation region for separating the carbonized object to be processed into a carbonized material of a finely divided combustible substance and other substances. .
[0007]
According to the first aspect of the present invention, the workpiece is rolled in the furnace core tube of the rotary retort furnace together with the beater member in which the plurality of blade pieces are arranged, so that the furnace core tube is provided via the beater member. Heat from the outside of the furnace is transferred to the object to be processed, and the object to be processed can be brought to a high temperature state in the space surrounded by the blade pieces of the beater member and the inner wall of the furnace core tube, thereby increasing the heat treatment efficiency. , The overall processing time is reduced. In addition, at the same time as the heat treatment is performed on the object to be processed, the object to be processed is hit and stirred and mixed by the beater member. In the separation area of the rotary retort furnace, the pulverized workpiece is separated into finely divided combustible material carbide and other substances. Separation steps such as sieving, air selection, and magnetic separation can be omitted. This can provide a carbonized fractionating device that can be carbonized, pulverized, and separated by a single device.
[0008]
According to a second aspect of the present invention, in the carbonization and separation apparatus according to the first aspect, a sieve unit is provided in the separation area.
[0009]
According to the second aspect of the invention, it is possible to effectively separate the foreign matter from the carbide of the atomized combustible substance as the target substance. Further, it is preferable to change the size of the sieves according to the particle size of the target product. If the target product has a plurality of particle sizes, a plurality of sieves having different sizes may be provided. As a result, the non-combustible substance or the large combustible substance (foreign matter) that is not sufficiently carbonized and not brittle is discharged from the discharge port of the rotary retort furnace.
[0010]
The invention according to claim 3 is a method for carbonizing waste, comprising arranging a plurality of blade pieces in a furnace core tube of a rotary retort furnace, wherein waste including combustible waste and non-combustible waste is disposed. By rolling the combustible waste together with the beater member, the combustible waste is carbonized and pulverized at the same time, and thereafter the combustible waste carbonized into fine particles is separated from the non-combustible waste remaining without being pulverized. It is characterized by doing.
[0011]
According to the invention as set forth in claim 3, the waste rolls with the beater member in which the plurality of blade pieces are arranged in the core tube of the rotary retort furnace, so that heat from outside the core tube via the beater member. Is transmitted to the waste, and the waste can be steamed in the space surrounded by the blade pieces of the beater member and the inner wall of the furnace tube, so that the carbonization efficiency of combustible waste increases, The carbonization time is reduced. In addition, since the combustible waste is carbonized and simultaneously struck and stirred by the beater member, the combustible waste carbonized by the carbonization is pulverized, and the pulverization step after the carbonization treatment in the rotary retort furnace. Can be omitted. On the other hand, non-combustible non-carbonized waste such as metal, porcelain, glass swarf, and concrete mixed into the waste is hard to be crushed in the furnace tube, so it can be easily processed by vibrating sieve, wind or magnetic separation in the process after the rotary retort furnace. Can be removed.
[0012]
According to a fourth aspect of the present invention, there is provided a method of carbonizing waste according to the third aspect, wherein the method is implemented by using the carbonizing and separating apparatus according to the first or second aspect.
[0013]
According to the fourth aspect of the present invention, in the carbonization treatment area, the waste is heat-treated and, at the same time, is beaten and stirred and mixed by the beater member, so that the waste that has become brittle due to the heat treatment is crushed. Here, what is pulverized is combustible waste such as paper waste, wood, waste plastic and the like that has been weakened by the carbonization treatment, and non-combustible waste such as metal, ceramics, glass waste, and concrete is hard to be pulverized. That is, in the carbonization region of the rotary retort furnace, heat treatment products of atomized combustible waste and heat treatment products of non-agglomerated non-combustible waste are mixed. Then, the combustible waste atomized in the separation area is separated into non-combustible waste that is not pulverized or hardly pulverized. This makes it possible to omit a separation step such as a vibrating sieve, air selection, and magnetic separation in a step after the rotary retort furnace, and it is possible to carbonize and separate waste with a single apparatus. Further, iron and non-ferrous metals can be recovered as non-oxides through carbonization.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, specific examples of the embodiments of the carbonization separation apparatus and the waste carbonization method according to the present invention will be described with reference to the drawings.
[0015]
The present inventors have developed a waste carbonization method that is highly efficient, has low equipment costs and operating costs, can easily remove metals and the like mixed into the waste, and a continuous carbonization method using a single apparatus. As a result of intensive research on a carbonization and separation device for waste that can carry out the process from to separation, a carbonization region and a separation region are provided in the rotary retort furnace, and the waste is collected in the furnace core tube of the rotary retort furnace. It has been found that the above problem can be solved by rolling the wing pieces together with the beater member.
[0016]
Rotary retort furnaces using this beater member have been patented as Japanese Patent No. 1629623, Japanese Patent No. 1634094, Japanese Patent No. 1630922, Japanese Patent No. 1630923, Japanese Patent No. 1739522, and Japanese Patent No. 3073717.
[0017]
As shown in FIGS. 1 and 2, the rotary retort furnace 1 includes a cylindrical furnace core tube 2, a heat retaining section 3, a heater 5 (5A, 5B) and the like. The sprocket 16 provided on one side of the flange 6 of the furnace core tube 2 meshes with the sprocket 18 on the motor 17 side via a chain 19 in order to rotate the furnace core tube 2 at a reduced speed about its axis. .
[0018]
On the front entrance side (left side in FIG. 1) of the furnace core tube 2, a hopper 10 and a guide blade 9 are arranged. The guide blade 9 is rotated by a motor 12 via a shaft 9a, a sprocket 11, a chain 14, and a sprocket 13.
[0019]
On the other hand, the rear end portion of the furnace core tube 2 is inserted into the workpiece removal chamber 40 and opened. The axis of the furnace core tube 2 is inclined from the inlet side to the outlet side, and the cross-shaped frame 20 is used to prevent the beater member 22 inserted into the furnace core tube 2 from coming out of the furnace core tube 2. Is fixed slightly inside the opening as a stopper.
[0020]
A plurality of beater members 22 are inserted into the furnace core tube 2 as shown in FIG. The beater member 22 is housed in an internal space substantially equal to the axial length of the furnace core tube 2, and three blade pieces 24 are radially arranged at equal intervals from the central shaft portion 23, for example, three are implanted or integrally formed. And a single body having a predetermined axial length L. The axial lengths L may be constant or different from each other.
[0021]
When the furnace core tube 2 rotates in the direction of the arrow shown in FIG. 2, the end faces of two of the three blade pieces 24 of the beater member 22 are the bottom inner surface of the furnace core tube 2. , And the remaining one blade piece 24 is in an upright state in the inner space of the furnace core tube 2. Then, with the rotation of the furnace core tube 2, the two blade pieces 24 that are in contact with the inner bottom surface of the furnace core tube 2 also rotate, and the one blade piece 24 that stands upright in the internal space has its own weight. As a result, one of the other two wing pieces 24 separates from the inner surface and stands upright in the internal space. When the fallen blade piece 24 comes into contact with the inner surface of the furnace core tube 2, the workpiece is hit and the brittle carbide is crushed.
[0022]
Two heaters 5A and 5B are arranged in the carbonization region, and the heater 5A can independently control the drying temperature and the heater 5B can independently control the carbonization temperature. The respective appropriate temperatures are a drying temperature of 50 to 300C and a carbonization temperature of 250 to 750C. In addition, the residence time in each region varies greatly depending on the moisture content of the object, the state of the size, and the like, and the treatment temperature. .
[0023]
The sieves of the sieve device provided in the separation area can be appropriately selected according to the particle size of the target substance, but are preferably selected in the range of 1 to 30 mm. If it is less than 1 mm, clogging is likely to occur, and the sorting efficiency deteriorates. Conversely, if it is larger than 30 mm, the amount of non-combustible substances that pass through the sieve and mix into the target product increases, which is not preferable. The residence time in the separation area is preferably 3 to 30 minutes.
[0024]
Next, a method for treating waste using the charcoal separation apparatus having the above configuration will be described. The waste suitable for the treatment by the carbon separation apparatus according to the present invention includes municipal waste generated in general homes and offices, construction waste generated in construction sites, waste home appliances and waste substrates collected in electric appliance stores and the like. Combustible materials such as sewage sludge generated in sewage treatment plants and incombustible materials are mixed waste.
[0025]
The waste received from the generation site or the like is crushed by a crusher and the waste is put into the hopper 10. The furnace core tube 2 is rotated at a speed of about 2 to 30 rpm at an inclination angle of about 0.5 to 8 °, and the furnace core tube 2 is indirectly heated by the heater 5 to reduce the temperature inside the furnace core tube 2. As described above, the temperature is maintained at about 50 to 750 ° C. The generated gas is burned in a secondary combustion furnace at 850 ° C. or more for 2 seconds or more.
[0026]
By rotating the motor 12, the guide blades 9 are rotated via the sprocket 18, the chain 19, the sprocket 16, and the shaft 9a, and waste is supplied from the hopper 10 to the furnace core tube 2. In addition, the supply amount is a filling rate of about 1 to 25%. The waste rolls with the beater member 22 in the furnace core tube 2, contacts the inner wall of the furnace core tube 2 while flowing in the furnace core tube 2, and moves from the inlet side to the outlet side of the furnace core tube 2. It moves and is dried and carbonized to become carbide.
[0027]
In this method, the beater member 22 efficiently transfers the heat from the heater 5 to the waste, and the waste is steamed in a space surrounded by the blade pieces 24 of the beater member 22 and the inner wall of the furnace core tube 2. The heat treatment efficiency can be increased, and the efficiency of waste treatment can be increased by the improvement of the reactivity by pulverization, so that the entire treatment time can be shortened.
[0028]
Further, at the same time as the waste is dried and carbonized in the furnace core tube 2, the beater member 22 strikes, agitates, mixes, and crushes the waste that has become brittle under the influence of heat. The subsequent pulverizing step can be omitted. In addition, even when incombustible substances such as metals are mixed in the waste, the incombustible substances are not pulverized in the furnace core tube 2 and are guided to the separation area. Then, in the separation area, the fine powder of the carbide passes through the sieve 31 and falls into the mantle 42. Clogging can be prevented by the vibration caused by the rolling of the beater member 22, and adhesion of fine particles to incombustibles can be suppressed. Incombustibles that do not pass through the sieve 31 are discharged from the end of the furnace core tube 2 to the incombustibles removal chamber 40. The fine particles of carbide that have fallen into the mantle 42 are discharged from the rotary valve 43.
[0029]
Next, a test example of the carbonization / separation apparatus for waste according to the present invention will be described.
[0030]
Example 1 of the waste carbon separation apparatus according to the present invention, using a furnace core tube 2 having a diameter of 570 mm and a length of 7000 mm, having a shape as shown in FIG. 3 and having L = 1400 mm, H = 230 mm, and t = 30 mm Using four beater members 22, a carbonized area of 2000 mm and a separation area of 2000 mm were created. Further, as Example 2, Example 2 was the case where the same furnace core tube 2 and four beater members 22 as described above were used, and no separation area was provided without the sieve 31. On the other hand, as Comparative Example 1, similarly to the above, using a furnace core tube 2 having a diameter of 570 mm and a length of 7000 mm, carbonizing the waste without disposing the beater member in the furnace core tube 2, and then pulverizing with a rod mill. , Sifted through a vibrating screen. Table 1 shows the test results.
[0031]
[Table 1]

[0032]
As is clear from the table, the processing capacity (efficiency) of Example 1 and Example 2 is significantly increased and the processing time is shortened as compared with Comparative Example 1.
[0033]
Next, another embodiment of the carbon fractionating apparatus according to the present invention will be described with reference to FIG. That is, a method and an apparatus for performing activated carbonization by blowing steam in the carbonization method and the carbon separation apparatus will be described. In this embodiment, the same components as those in the above embodiment shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0034]
Also in this embodiment, the rotary retort furnace 1 into which the beater member 22 is inserted is used, and the rotary retort furnace 1 includes a cylindrical furnace core tube 2, a heat retaining section 3, a heater 5, and the like. A sprocket 16, a motor 17, a sprocket 18, and a chain 19 are arranged to rotate the tube 2 at a reduced speed about its axis.
[0035]
A hopper 10 and a guide blade 9 are arranged on the front entrance side of the furnace core tube 2, and the guide blade 9 is rotated by a motor 12 via a shaft 9 a, a sprocket 11, a chain 14, and a sprocket 13. Further, the rear end of the furnace core tube 2 is inserted into the workpiece removal chamber 40 and opened, thereby preventing the beater member 22 from going out of the furnace core tube 2 and connecting the steam blowing tube 41 to the furnace core. For insertion into the tube 2, a cross-shaped frame 20 is fixed slightly inside the opening as a stopper.
[0036]
A plurality of beater members 22 are inserted into the furnace core tube 2 as shown in FIG. Also, as shown in FIG. 4, three heaters 5A to 5C are arranged in the carbonization region. The heater 5A has a drying temperature, the heater 5B has a carbonization temperature, and the heater 5C has an activated carbonization temperature (activation temperature). Process temperature) can be controlled independently of each other. As appropriate temperatures, the drying temperature is 50 to 300 ° C, the carbonizing temperature is 250 to 750 ° C, and the active carbonizing temperature is 700 to 1000 ° C. The residence time of each zone is preferably 3 to 30 minutes in the dry zone, 1 to 50 minutes in the carbonized zone, and 5 to 120 minutes in the activated carbonized zone. A sieve 31 is provided in the separation area.
[0037]
The steam blowing pipe 41 is inserted into the furnace core pipe 2 from the outlet side, and is introduced outside the cross-shaped frame 20 installed slightly inside the outlet to prevent contact with the beater member 22. However, as another embodiment, it is also possible to blow steam from the waste input side.
[0038]
Next, a method for treating waste using the charcoal separation apparatus having the above configuration will be described.
[0039]
After the waste such as municipal waste received from the generation site or the like is crushed by a crusher and the waste is put into the hopper 10, the furnace core tube 2 is moved at a speed of about 2 to 30 rpm at 0.5 to 8 °. By rotating the furnace core tube 2 at an inclination angle of about a degree, the furnace core tube 2 is indirectly heated, and the temperature inside the furnace core tube 2 is maintained at about 50 to 1000 ° C. as described above.
[0040]
By rotating the motor 12, the guide blades 9 are rotated, and waste is supplied from the hopper 10 to the furnace core tube 2. The supply rate is a filling rate of about 3 to 25%. When steam is blown from the steam blow pipe 41 so that the steam partial pressure in the furnace becomes 0.05 to 0.4, the waste is reduced to the furnace core pipe 2. In the inside, it rolls together with the beater member 22, contacts the inner wall of the furnace core tube 2 while flowing in the furnace core tube 2, moves from the inlet side to the outlet side of the furnace core tube 2, and dries, carbonizes, and activates the activated carbon. To become activated carbide.
[0041]
In this method, the beater member 22 efficiently transfers the heat from the heater 5 to the waste, and converts the waste into a steamed state in the space surrounded by the blade pieces 24 of the beater member 22 and the inner wall of the furnace core tube 2. As a result, the thermal efficiency is increased, and the efficiency of the waste treatment is increased by the improvement of the reactivity by the pulverization, so that the entire processing time can be shortened. In addition, the waste is dried, carbonized and activated carbonized (activated) in the furnace core tube 2 and, at the same time, is beaten, agitated and mixed by the beater member 22, and the waste brittle by the carbonization is crushed. The pulverizing step after the retort furnace can be omitted. Non-combustible substances such as metals mixed into the waste are hardly pulverized in the furnace core tube 2 and can be easily separated in the separation area.
[0042]
【The invention's effect】
As described above, according to the present invention, carbonization efficiency is high, carbonization can be performed in a short time, equipment costs and operation costs are low, and metals and the like mixed into waste can be easily removed. The waste carbonization method that can be performed, and the process from carbonization of waste to be treated, such as waste, to separation can be performed continuously with one unit, and high efficiency, low equipment costs and low operating costs In addition, it is possible to provide a carbon fractionating apparatus capable of easily removing metals and the like mixed into waste.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing one embodiment of a carbon fractionating apparatus according to the present invention.
FIG. 2 is a cross-sectional view showing the carbon fractionating apparatus of FIG.
FIG. 3 is a perspective view showing an example of a beater member of the rotary retort furnace of the carbon fractionating apparatus according to the present invention.
FIG. 4 is a longitudinal sectional view showing another embodiment of the carbon fractionating apparatus according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotary retort furnace 2 Furnace tube 3 Heat retention part 5A Drying heater 5B Carbonization heater 5C Activated carbonization (activation) heater 6 Flange 9 Guide blade 9a Shaft 10 Hopper 11 Sprocket 12 Motor 13 Sprocket 14 Chain 16 Sprocket 17 Motor 18 Sprocket 19 chain 20 cruciform frame 22 beater member 23 center shaft part 24 wing piece 31 sieve 40 incombustible material discharge chamber 41 steam blowing pipe 42 mantle 43 rotary valve 44 mantle

Claims (4)

A charcoal separation apparatus having a rotary retort furnace including a beater member having a plurality of blade pieces arranged in a furnace core tube,
The rotary retort furnace,
A carbonization treatment area for carbonizing the object to be treated;
A carbonization separation device comprising: a separation region that separates the carbonized material into a finely divided combustible material of a combustible substance and other substances. The carbon separation apparatus according to claim 1, wherein a sieve unit is provided in the separation area. When the waste containing combustible waste and non-combustible waste is rolled together with a beater member in which a plurality of blade pieces are arranged in a core tube of a rotary retort furnace, the combustible waste is carbonized. A carbonization method for wastes, comprising simultaneously pulverizing and then pulverizing the carbonized combustible waste and the non-combustible waste remaining without being pulverized. A method of carbonizing waste according to claim 3, wherein the method is performed using the carbonizing and separating apparatus according to claim 1 or 2.

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