JP2005273926A - Rotary kiln apparatus and pyrolizing facility - Google Patents

Rotary kiln apparatus and pyrolizing facility Download PDF

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JP2005273926A
JP2005273926A JP2004083896A JP2004083896A JP2005273926A JP 2005273926 A JP2005273926 A JP 2005273926A JP 2004083896 A JP2004083896 A JP 2004083896A JP 2004083896 A JP2004083896 A JP 2004083896A JP 2005273926 A JP2005273926 A JP 2005273926A
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rotary kiln
raw
flexible
stirring
conveying blades
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Yoshiyuki Kashiwagi
佳行 柏木
Hiroyuki Ishikawa
博之 石川
Keiji Yasuda
圭児 安田
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Meidensha Corp
株式会社明電舎
Tokai Techno Kk
東海テクノ株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To effectively pyrolize a material by effectively agitating/carrying the material and preventing the material from being lumped. <P>SOLUTION: A plurality of agitating/carrying blades 27 are installed in the circumferential and axial directions of a rotatably cylindrical rotary kilns 1 and 2. A flexible member (chain) 28 is installed across agitating/carrying blades 27 adjacent to each other in the circumferential direction of the rotary kilns 1 and 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、各種の有機性物質を含む原料(各種の有機物を含む固形物、各種汚泥、土壌等)を熱分解反応により減容、減量化する施設に係り、特に攪拌・搬送羽根を備えた回転キルン装置及び熱分解施設に関するものである。   The present invention relates to a facility for reducing and reducing the volume of raw materials containing various organic substances (solids containing various organic substances, various sludges, soils, etc.) by a thermal decomposition reaction, and particularly equipped with stirring and conveying blades. The present invention relates to a rotary kiln device and a pyrolysis facility.
各種原料(被処理物)である各種有機性物質、各種汚泥、土壌、土砂等を、間接加熱による還元性の雰囲気において熱分解を行い、乾燥、炭化、灰化、浄化等の加工を施すことが行われている。回転キルンの内部に原料を収納して間接加熱により原料を熱分解する熱分解手段を使用する場合、回転キルンの内部には、原料の攪拌と搬送を加熱効率を含めて効果的に行うための工夫が施されている。例えば、複数の羽根の設置とか、炉内壁の工夫等である。   Various organic substances, various sludges, soil, earth and sand, etc., which are various raw materials (processed materials), are pyrolyzed in a reducing atmosphere by indirect heating and processed such as drying, carbonization, ashing, purification, etc. Has been done. When using a pyrolysis means that contains raw materials inside the rotary kiln and thermally decomposes the raw materials by indirect heating, the rotary kiln is designed to effectively stir and transport the raw materials including heating efficiency. Ingenuity is given. For example, installation of a plurality of blades, a device for the furnace inner wall, or the like.
特許文献1においては、回転キルン内の伝熱管(羽根)を前方側に傾斜させて設けており、特許文献2,3においては、回転キルンを上流側から下流側に向けて下方に傾斜させて配置するとともに、回転キルンの内壁に羽根を固定しており、特許文献4においても、回転キルンの内壁に羽根を固定しており、特許文献5においては、回転キルンは傾斜して設けられるとともに、回転キルンの内壁は多角形に形成されており、やはり攪拌・搬送が効果的に行われるようにしている。   In Patent Document 1, the heat transfer tubes (blades) in the rotary kiln are provided to be inclined forward, and in Patent Documents 2 and 3, the rotary kiln is inclined downward from the upstream side toward the downstream side. In addition, the blades are fixed to the inner wall of the rotary kiln. Also in Patent Document 4, the blades are fixed to the inner wall of the rotary kiln. In Patent Document 5, the rotary kiln is provided with an inclination. The inner wall of the rotary kiln is formed in a polygonal shape, so that stirring and transport are effectively performed.
又、特許文献6においては、回転キルンの内壁に形状を工夫した羽根を固定しており、特許文献7においては、回転キルンの内壁に形状と配置を工夫した羽根が設けられ、特許文献8においては、回転キルンの内壁にピン状突起物を所定間隔で設けたものが示され、特許文献9においては、回転キルンの内壁に形状と配置を工夫した羽根を設けており、特許文献10においては、回転キルンの内壁に複数の螺旋状のリフタを設けている。さらに、特許文献11においては、汚泥の乾燥と燃焼を連続して行うものにおいて、回転キルンを傾斜させるとともに、可撓性部材(チェーン)により原料を解砕することにより加工効率を向上させるものが示されている。
特開2002−156105号公報 特開2000−97567号公報 特開2000−153523号公報 特開2000−249475号公報 特開平7−120161号公報 特開平8−110164号公報 特開平11−63830号公報 特開平10−267239号公報 特開平10−54523号公報 特開平8−233234号公報 特許第2869643号公報
Moreover, in patent document 6, the blade which devised the shape was fixed to the inner wall of a rotation kiln, and in patent document 7, the blade | wing which devised the shape and arrangement | positioning was provided in the inner wall of the rotation kiln. Shows that the pin-shaped projections are provided at predetermined intervals on the inner wall of the rotary kiln. In Patent Document 9, the inner wall of the rotary kiln is provided with blades devised in shape and arrangement. In Patent Document 10, A plurality of spiral lifters are provided on the inner wall of the rotary kiln. Further, in Patent Document 11, in which sludge is continuously dried and burned, the rotary kiln is inclined and the raw material is crushed by a flexible member (chain) to improve the processing efficiency. It is shown.
JP 2002-156105 A JP 2000-97567 A JP 2000-153523 A JP 2000-249475 A JP-A-7-120161 JP-A-8-110164 Japanese Patent Laid-Open No. 11-63830 Japanese Patent Laid-Open No. 10-267239 Japanese Patent Laid-Open No. 10-54523 JP-A-8-233234 Japanese Patent No. 2869643
上記したように、従来の回転キルン装置及び熱分解施設においては、回転キルン内に原料の攪拌と搬送を行う羽根を備えており、この羽根は、原料の性状、滞留時間、回転キルンの回転数等を考慮して、高さ、長さ、傾斜角等の諸元が決定される。しかしながら、各種原料の性状に応じた羽根の形状や配置の条件は、技術的蓄積はあるものの、実運転を行って見ないと不明であり、従来においては回転キルン内の羽根は何れも固定されているので、羽根の形状や設置位置等の変更は容易でなく、回転キルンの回転数の調整(原料の滞留時間の調整)や加熱温度の調整といった限られた手段によって対応していた。   As described above, the conventional rotary kiln apparatus and the thermal decomposition facility are provided with blades for stirring and transporting the raw material in the rotary kiln, and these blades have the properties of the raw material, the residence time, and the rotational speed of the rotary kiln. And other factors such as height, length, and inclination angle are determined. However, although the blade shape and arrangement conditions according to the properties of various raw materials are technically accumulated, it is unclear unless they are actually operated, and conventionally, all the blades in the rotary kiln are fixed. Therefore, it is not easy to change the shape and installation position of the blades, and it has been dealt with by limited means such as adjustment of the rotational speed of the rotary kiln (adjustment of the residence time of the raw material) and adjustment of the heating temperature.
又、実負荷試験に適した量の原料の入手が困難な場合もあり、少量の原料でのサンプル試験結果が良好であり、これに基づき羽根の条件を決定しても、実負荷時においてはサンプル試験の結果と乖離することも現実にはある。これは、原料に対して最適な熱分解処理が行えないこと、加熱源燃料の消費量が増加すること、及び運転時間が長期化すること等による施設の運転コストの増加が原因である。   In addition, it may be difficult to obtain a raw material in an amount suitable for the actual load test, and the sample test result with a small amount of raw material is good. In reality, there is a discrepancy with the results of the sample test. This is due to an increase in the operating cost of the facility due to the fact that the optimum pyrolysis treatment cannot be performed on the raw material, the consumption of the heating source fuel increases, and the operation time is prolonged.
また、原料が含水物質の場合には、粘性のある場合がある。例えば、活性汚泥法による汚泥の場合には、微生物の存在により粘性が高い場合がある。しかも、脱水汚泥に加工する際に使用する凝集剤の存在により一層粘性が増す場合もある。
このように、原料の粘性が高い場合には、原料が回転キルンの内壁や攪拌・搬送羽根に付着したり、あるいは凝集して団子状の塊となり、伝熱効率が低下して、加熱加工(乾燥)効率が低下する場合があるが、上記の何れの技術においても、原料の攪拌・搬送を効率的に行い、かつ原料の団子状塊化への変化を解消することは困難であった。特許文献11の場合においても、可撓性部材の存在により団子状化の阻止はある程度可能であるが、搬送が回転キルンの傾斜により行われる場合には、原料の攪拌・搬送のコントロールには自ずから限界があった。
In addition, when the raw material is a hydrous material, it may be viscous. For example, in the case of sludge by the activated sludge method, the viscosity may be high due to the presence of microorganisms. In addition, the viscosity may be further increased due to the presence of the flocculant used when processing into dehydrated sludge.
Thus, when the viscosity of the raw material is high, the raw material adheres to the inner wall of the rotary kiln or the agitating / conveying blade, or aggregates into a dumpling-like lump, resulting in a decrease in heat transfer efficiency and heat processing (drying However, in any of the above-described techniques, it is difficult to efficiently stir and convey the raw material and eliminate the change of the raw material into dumpling agglomeration. In the case of Patent Document 11 as well, it is possible to prevent dumping to some extent due to the presence of the flexible member. However, when the conveyance is performed by the inclination of the rotary kiln, the control of the agitation / conveyance of the material is naturally performed. There was a limit.
そこで、発明者は、攪拌・搬送を専ら担う手段と原料の解砕を専ら担う可撓性手段とを設けることにより、回転キルンの回転時において原料の攪拌・搬送を効率的に行い、かつ原料の解砕が促進できることを見出した。   Therefore, the inventor can efficiently stir and convey the raw material during the rotation of the rotary kiln by providing means exclusively for stirring and conveying and a flexible means exclusively for crushing the raw material. It was found that crushing of can be promoted.
この発明は上記のような課題を解決するために成されたものであり、原料の攪拌・搬送を効率的に行うことができ、これによって原料に最適な熱分解を効果的に行うことができ、また原料の塊化を防止して熱分解加工を効果的に行うことができる回転キルン装置及び熱分解施設を得ることを目的とする。   The present invention has been made to solve the above-described problems, and can efficiently stir and convey the raw material, thereby effectively performing the optimum thermal decomposition on the raw material. It is another object of the present invention to provide a rotary kiln apparatus and a pyrolysis facility that can effectively perform pyrolysis processing while preventing agglomeration of raw materials.
この発明の請求項1に係る回転キルン装置は、回転自在で筒状の回転キルン内の周方向及び軸方向に複数の攪拌・搬送羽根を備えた回転キルン装置において、攪拌・搬送羽根間に橋渡しして原料の解砕を行う可撓性部材を設けたものである。   According to a first aspect of the present invention, there is provided a rotary kiln apparatus comprising a plurality of agitating / conveying blades in a circumferential direction and an axial direction in a rotatable and cylindrical rotating kiln. Thus, a flexible member for crushing the raw material is provided.
請求項2に係る熱分解施設は、回転自在で筒状の回転キルン内の周方向及び軸方向に複数の攪拌・搬送羽根を設けるとともに、回転キルンの両端部に原料の導入手段と排出手段を設け、回転キルンの内部に原料を収納して間接加熱により原料を熱分解する熱分解手段を備えた熱分解施設において、攪拌・搬送羽根間に橋渡しして原料の解砕を行う可撓性部材を設けたものである。   The thermal decomposition facility according to claim 2 is provided with a plurality of stirring / conveying blades in a circumferential direction and an axial direction in a rotatable and cylindrical rotary kiln, and raw material introducing means and discharging means at both ends of the rotary kiln. A flexible member that breaks down the raw material by bridging between the stirring and conveying blades in a thermal decomposition facility equipped with thermal decomposition means that contains the raw material inside the rotary kiln and thermally decomposes the raw material by indirect heating Is provided.
請求項3に係る回転キルン装置又は熱分解施設は、可撓性部材が、回転キルンの周方向に隣接する攪拌・搬送羽根間に橋渡しして設けられたものである。   In the rotary kiln apparatus or the thermal decomposition facility according to claim 3, the flexible member is provided by bridging between the stirring / conveying blades adjacent in the circumferential direction of the rotary kiln.
請求項4に係る回転キルン装置又は熱分解施設は、可撓性部材が、回転キルンの半径方向に対向する攪拌・搬送羽根間に橋渡しして設けられたものである。   In the rotary kiln apparatus or the thermal decomposition facility according to the fourth aspect, the flexible member is provided by bridging between the stirring / conveying blades facing in the radial direction of the rotary kiln.
請求項5に係る回転キルン装置又は熱分解施設は、可撓性部材が、回転キルンの軸方向に隣接する攪拌・搬送羽根間に橋渡しして設けられたものである。   In the rotary kiln apparatus or the thermal decomposition facility according to claim 5, the flexible member is provided by bridging between the stirring / conveying blades adjacent in the axial direction of the rotary kiln.
以上のようにこの発明によれば、攪拌・搬送羽根間に原料の解砕手段として可撓性部材を設けたことにより、回転キルンの回転時において原料が適宜に可撓性部材に係合してその解砕が促進され、原料の塊化が防止され、熱分解加工(乾燥、炭化)が効果的に行える。しかも、可撓性部材を既存の回転キルン装置あるいは熱分解施設に追加して設置することは容易であるので、原料が粘性の無いものから有るものに変化した場合にも容易に対応することができる。又、攪拌・搬送羽根が設けられているので、原料の攪拌・搬送も効率的に行われて、これによっても原料の熱分解加工も効果的に行われる。従って、加熱源燃料の節減及び運転時間の短縮等の施設の運転コストの削減が図れる。   As described above, according to the present invention, since the flexible member is provided as the raw material crushing means between the stirring / conveying blades, the raw material is appropriately engaged with the flexible member when the rotary kiln is rotated. Thus, the crushing is promoted, the agglomeration of raw materials is prevented, and pyrolysis processing (drying and carbonization) can be effectively performed. Moreover, since it is easy to install a flexible member in addition to an existing rotary kiln apparatus or thermal decomposition facility, it is possible to easily cope with a case where the raw material is changed from a non-viscous one. it can. Further, since the stirring / conveying blade is provided, the raw material is efficiently stirred and transported, and the thermal decomposition processing of the raw material is also effectively performed. Therefore, it is possible to reduce the operating cost of the facility such as saving of the heat source fuel and shortening the operation time.
実施最良形態1
以下、この発明を実施するための最良の形態を図面とともに説明する。図2はこの発明の実施最良形態1による熱分解施設の構成図を示し、1,2は筒状の回転キルンであり、回転キルン1,2の周囲には回転キルン1,2をそれぞれ外部から加熱する外部加熱手段3,4が設けられ、回転キルン1と外部加熱手段3とにより乾燥炉(加熱熱風温度300〜450℃)が形成され、回転キルン2と外部加熱手段4とにより炭化炉(加熱熱風温度400〜650℃)が形成される。外部加熱手段4には燃焼バーナを有する熱風炉5から熱風ガスが導入され、この熱風ガスは外部加熱手段3にも導入された後、配管19を介して排気される。回転キルン1,2の内部には、後述するように、周方向及び軸方向に複数の攪拌・搬送羽根が設けられている。
Best Embodiment 1
The best mode for carrying out the present invention will be described below with reference to the drawings. FIG. 2 is a block diagram of a thermal decomposition facility according to the first embodiment of the present invention. Reference numerals 1 and 2 denote cylindrical rotary kilns. External heating means 3 and 4 for heating are provided, a rotary kiln 1 and external heating means 3 form a drying furnace (heating hot air temperature 300 to 450 ° C.), and a rotary kiln 2 and external heating means 4 form a carbonization furnace ( Heating hot air temperature 400-650 ° C.) is formed. Hot air gas is introduced into the external heating means 4 from a hot air furnace 5 having a combustion burner, and this hot air gas is also introduced into the external heating means 3 and then exhausted through a pipe 19. As will be described later, a plurality of stirring / conveying blades are provided in the rotary kilns 1 and 2 in the circumferential direction and the axial direction.
回転キルン1の一端側には、原料を貯留するホッパ6、モータ駆動の搬送手段7及び投入ボックス8が設けられ、回転キルン1の他端側には回転キルン2の他端側にまたがって接続ボックス9が設けられている。又、回転キルン1の両端寄り部分の外周には環状の突出部1a,1bが設けられ、突出部1a,1bは回転支持ローラ10,11により回転自在に支持される。又、回転キルン1の突出部1b側にはスプロケットが設けられ、このスプロッケットと駆動源であるモータ12とはチェーン13によって連結されている。   On one end side of the rotary kiln 1, a hopper 6 for storing raw materials, a motor-driven transfer means 7 and a charging box 8 are provided. The other end side of the rotary kiln 1 is connected across the other end side of the rotary kiln 2. A box 9 is provided. In addition, annular protrusions 1 a and 1 b are provided on the outer periphery of the portion near both ends of the rotary kiln 1, and the protrusions 1 a and 1 b are rotatably supported by the rotation support rollers 10 and 11. Further, a sprocket is provided on the projecting portion 1 b side of the rotary kiln 1, and the sprocket and the motor 12 as a driving source are connected by a chain 13.
又、同様にして、回転キルン2の両端寄り部分にも突出部2a,2bが設けられ、突出部2a,2bは回転支持ローラ14,15により回転自在に支持され、回転キルン2とモータ16とはスプロケットを介してチェーン17により連結される。又、回転キルン2の一端側には回収ボックス18が設けられている。   Similarly, protrusions 2a and 2b are provided at both end portions of the rotary kiln 2, and the protrusions 2a and 2b are rotatably supported by the rotation support rollers 14 and 15, respectively. Are connected by a chain 17 via a sprocket. A collection box 18 is provided on one end side of the rotary kiln 2.
又、配管19には配管20が分岐接続され、配管20には循環ブロア21及びエゼクタブロア22が設けられ、配管20はエゼクタ及び燃焼バーナを有するガス燃焼炉23に接続される。又、ガス燃焼炉23には配管24を介して接続ボックス9が接続され、原料の乾燥処理により発生した乾留ガスや水蒸気等からなる分解ガスが送入され、燃焼浄化される。ガス燃焼炉23からの燃焼排ガスは気体ー気体熱交換機25等を介して排出される。熱交換機25と熱風炉5とは配管26により接続される。   A pipe 20 is branched and connected to the pipe 19, and a circulation blower 21 and an ejector blower 22 are provided in the pipe 20. The pipe 20 is connected to a gas combustion furnace 23 having an ejector and a combustion burner. Further, the connection box 9 is connected to the gas combustion furnace 23 through a pipe 24, and a cracked gas made of dry distillation gas, water vapor, etc. generated by the raw material drying process is fed into the gas combustion furnace 23 for combustion purification. The combustion exhaust gas from the gas combustion furnace 23 is discharged through the gas-gas heat exchanger 25 and the like. The heat exchanger 25 and the hot stove 5 are connected by a pipe 26.
図1(a),(b)は実施最良形態1による回転キルン装置の縦断正面図及び側面図を示し、回転キルン1,2の内壁には螺旋状配置、即ち周方向及び軸方向に複数の攪拌・搬送羽根27が設けられ、周方向に隣接する攪拌・搬送羽根27間に橋渡しして原料の解砕を行う可撓性部材(チェーン)28を設ける。   1A and 1B show a longitudinal front view and a side view of a rotary kiln device according to the first embodiment, and the inner walls of the rotary kilns 1 and 2 are arranged in a spiral manner, that is, in a circumferential direction and an axial direction. A stirring / conveying blade 27 is provided, and a flexible member (chain) 28 that bridges between the stirring / conveying blades 27 adjacent in the circumferential direction to crush the raw material is provided.
次に、上記構成の動作について説明する。原料(被処理物)はホッパ6、搬送手段7及び投入ボックス8を介して回転キルン1内に投入される。回転キルン1,2はモータ12,16により回転駆動され、回転キルン1内に導入された被処理物は攪拌・搬送羽根27を設けたことにより効果的に攪拌・搬送される。又、周方向に隣接する攪拌・搬送羽根27間に橋渡しして可撓部材28を設けたことにより、この可撓性部材28が原料と接触係合して原料の解砕が行われる。回転キルン1内は熱風ガスにより所定温度に加熱され、被処理物は間接加熱により乾燥(水分除去)されて乾燥物となり、接続ボックス9に排出される。接続ボックス9内においては乾燥物はガイド9aに案内され、回転キルン2の他端内に送入される。この回転キルン2内においても、乾燥物は攪拌・搬送羽根27により攪拌されながら搬送され、また周方向に隣接する攪拌・搬送羽根27間に橋渡しして可撓部材28を設けたことにより原料の解砕が行われる。この間においても熱風炉5からの熱風ガスにより間接加熱され、乾燥物は熱分解処理(炭化処理)されて炭化物となり、この炭化物は回転キルン2の一端から回収ボックス18を介して回収される。   Next, the operation of the above configuration will be described. The raw material (object to be processed) is charged into the rotary kiln 1 through the hopper 6, the conveying means 7 and the charging box 8. The rotary kilns 1 and 2 are rotationally driven by motors 12 and 16, and the workpieces introduced into the rotary kiln 1 are effectively stirred and transported by providing the stirring and transport blades 27. Further, the flexible member 28 is provided by bridging between the stirring / conveying blades 27 adjacent to each other in the circumferential direction, so that the flexible member 28 comes into contact with the raw material and the raw material is crushed. The inside of the rotary kiln 1 is heated to a predetermined temperature by hot air gas, and the object to be processed is dried (moisture removed) by indirect heating to become a dried substance, which is discharged to the connection box 9. In the connection box 9, the dried material is guided by the guide 9 a and fed into the other end of the rotary kiln 2. Also in the rotary kiln 2, the dried product is conveyed while being agitated by the agitating / conveying blades 27, and is provided with a flexible member 28 by bridging between the agitating / conveying blades 27 adjacent in the circumferential direction. Crushing takes place. In the meantime, it is indirectly heated by the hot air gas from the hot air furnace 5, and the dried product is pyrolyzed (carbonized) to become a carbide, and this carbide is recovered from one end of the rotary kiln 2 through the recovery box 18.
回転キルン1,2内で発生した熱分解ガスは接続ボックス9から配管24及びエゼクタを介してガス燃焼炉23に導入され、燃焼浄化される。ガス燃焼炉23は自身の燃焼バーナにより加熱されるとともに、外部加熱手段3から排出される熱風ガスの一部を配管20を介して送入され、約850℃に加熱される。ガス燃焼炉23からの燃焼排ガスは温度調整空気を導入された後、熱交換機25において外部空気と熱交換されて200〜150℃に冷却される。熱交換により加熱された外部空気は、配管26を介して熱風炉5に導入される。一方、冷却された燃焼排ガスはバグフィルタ及び排気ブロアを介して煙突から排出される。   The pyrolysis gas generated in the rotary kilns 1 and 2 is introduced from the connection box 9 into the gas combustion furnace 23 through the pipe 24 and the ejector, and is purified by combustion. The gas combustion furnace 23 is heated by its own combustion burner, and part of the hot air gas discharged from the external heating means 3 is fed through the pipe 20 and heated to about 850 ° C. The combustion exhaust gas from the gas combustion furnace 23 is introduced with temperature-adjusted air, and then heat-exchanged with external air in the heat exchanger 25 and cooled to 200 to 150 ° C. The external air heated by heat exchange is introduced into the hot stove 5 through the pipe 26. On the other hand, the cooled combustion exhaust gas is discharged from the chimney through the bag filter and the exhaust blower.
実施最良形態1においては、周方向に隣接する攪拌・搬送羽根27間に橋渡しして可撓性部材28を設けており、回転キルン1,2の回転時に可撓性部材28が原料と接触係合することにより粘性のある原料であっても原料の解砕が行われ、原料の塊化が防止され、熱分解加工(乾燥、炭化)が効果的に行われ、原料に最適な熱分解加工を行うことができる。しかも、既存の回転キルン装置や熱分解施設に可撓性部材を追加して設けることは容易であるので、原料の粘性の有無に容易に対応することができる。又、回転キルン1,2内の周方向及び軸方向に複数の攪拌・搬送羽根27を設けているので、原料の攪拌・搬送も加熱効率も含めて効果的に行うことができる。従って、加熱源燃料の節減及び運転時間の短縮等の施設の運転コストの削減が図れる。   In the first embodiment, the flexible member 28 is provided between the stirring / conveying blades 27 adjacent in the circumferential direction, and the flexible member 28 is in contact with the raw material when the rotary kilns 1 and 2 are rotated. By combining the raw materials, even if they are viscous materials, the raw materials are crushed, the raw materials are prevented from agglomerating, and pyrolysis (drying, carbonization) is effectively performed, making the pyrolysis optimal for the raw materials. It can be performed. In addition, since it is easy to add a flexible member to an existing rotary kiln apparatus or thermal decomposition facility, it is possible to easily cope with the presence or absence of the viscosity of the raw material. Further, since the plurality of stirring / conveying blades 27 are provided in the circumferential direction and the axial direction in the rotary kilns 1 and 2, the raw materials can be effectively stirred and conveyed including heating efficiency. Therefore, it is possible to reduce the operating cost of the facility such as saving of the heat source fuel and shortening the operation time.
実施最良形態2
図3(a),(b)はこの発明の実施最良形態2による回転キルン装置の縦断正面図及び側面図を示し、実施最良形態2においては、回転キルン1,2の内壁の周方向及び軸方向には複数の攪拌・搬送羽根27が設けられ、略半径方向に対向する攪拌・搬送羽根27間に橋渡しして可撓性部材(チェーン)28が設けられる。その他の構成は実施最良形態1と同様である。
Embodiment 2
3 (a) and 3 (b) show a longitudinal front view and a side view of a rotary kiln device according to Embodiment 2 of the present invention. In Embodiment 2, the circumferential direction and axis of the inner walls of the rotary kilns 1 and 2 are shown. A plurality of agitating / conveying blades 27 are provided in the direction, and a flexible member (chain) 28 is provided to bridge between the agitating / conveying blades 27 facing in the substantially radial direction. Other configurations are the same as those of the first embodiment.
実施最良形態2においては、回転キルン1,2の略半径方向に対向する攪拌・搬送羽根27間に橋渡しして可撓性部材28を設けており、この可撓性部材28によって原料の解砕が行われ、熱分解加工が効果的に行われる。その他実施最良形態1と同様の効果を奏する。   In the second embodiment, a flexible member 28 is provided by bridging between the agitating / conveying blades 27 facing the substantially radial direction of the rotary kilns 1 and 2, and the raw material is crushed by the flexible member 28. And the pyrolysis process is effectively performed. In addition, the same effects as in the first embodiment are obtained.
実施最良形態3
図4は実施最良形態3による回転キルン装置の縦断正面図を示し、実施最良形態3においては、回転キルン1,2の内壁の周方向及び軸方向には複数の攪拌・搬送羽根27が設けられ、軸方向に隣接する攪拌・搬送羽根27間に橋渡しして可撓性部材(チェーン)28が設けられる。その他の構成は実施最良形態1と同様である。
Embodiment 3
FIG. 4 shows a longitudinal front view of the rotary kiln device according to the third embodiment. In the third embodiment, a plurality of stirring / conveying blades 27 are provided in the circumferential direction and the axial direction of the inner walls of the rotary kilns 1 and 2. A flexible member (chain) 28 is provided between the stirring / conveying blades 27 adjacent in the axial direction. Other configurations are the same as those of the first embodiment.
実施最良形態3においては、回転キルン1,2の軸方向に隣接する攪拌・搬送羽根27間に橋渡しして可撓性部材(チェーン)28を設けており、この可撓性部材28によって原料の解砕が行われ、熱分解加工が効果的に行われる。その他実施最良形態1と同様の効果を奏する。   In the third embodiment, a flexible member (chain) 28 is provided by bridging between the agitating / conveying blades 27 adjacent to each other in the axial direction of the rotary kilns 1 and 2. Crushing is performed and pyrolysis processing is effectively performed. In addition, the same effects as in the first embodiment are obtained.
なお、上記各実施最良形態においては、可撓性部材28をそれぞれ周方向に隣接する攪拌・搬送羽根27間、略半径方向に対向する攪拌・搬送羽根27間、あるいは軸方向に隣接する攪拌・搬送羽根27間に橋渡しして設けたが、これらを組み合わせた構造とすることにより一層効果を発揮することができる。又、回転キルン2においては原料は既に乾燥しているので、原料の塊化がなくなっていれば、可撓性部材28を設ける必要がない。   In each of the above-described best embodiments, the flexible members 28 are respectively disposed between the agitating / conveying blades 27 adjacent in the circumferential direction, between the agitating / conveying blades 27 opposed in the substantially radial direction, or in the axial direction. Although the bridge is provided between the conveying blades 27, the effect can be further enhanced by combining these. In addition, since the raw material is already dried in the rotary kiln 2, it is not necessary to provide the flexible member 28 if the raw material is not agglomerated.
この発明の実施最良形態1による回転キルン装置の縦断正面図及び側面図である。It is the longitudinal section front view and side view of the rotary kiln apparatus by Embodiment 1 of this invention. 実施最良形態1による熱分解施設の構成図である。1 is a configuration diagram of a thermal decomposition facility according to Embodiment 1. FIG. 実施最良形態2による回転キルン装置の縦断正面図及び側面図である。It is the vertical front view and side view of the rotary kiln apparatus by Embodiment 2. 実施最良形態3による回転キルン装置の縦断正面図である。It is a vertical front view of the rotary kiln apparatus by Embodiment 3.
符号の説明Explanation of symbols
1,2…回転キルン
3,4…外部加熱手段
8…投入ボックス
9…接続ボックス
10,11,14,15…回転支持ローラ
18…回収ボックス
27…攪拌・搬送羽根
28…可撓性部材(チェーン)
DESCRIPTION OF SYMBOLS 1, 2 ... Rotary kiln 3, 4 ... External heating means 8 ... Input box 9 ... Connection box 10, 11, 14, 15 ... Rotation support roller 18 ... Collection box 27 ... Stirring and conveyance blade 28 ... Flexible member (chain )

Claims (5)

  1. 回転自在で筒状の回転キルン内の周方向及び軸方向に複数の攪拌・搬送羽根を備えた回転キルン装置において、攪拌・搬送羽根間に橋渡しして原料の解砕を行う可撓性部材を設けたことを特徴とする回転キルン装置。   In a rotary kiln apparatus equipped with a plurality of stirring / conveying blades in a circumferential direction and an axial direction in a rotatable cylindrical kiln, a flexible member that bridges between the stirring / conveying blades and crushes the raw material A rotary kiln device characterized by being provided.
  2. 回転自在で筒状の回転キルン内の周方向及び軸方向に複数の攪拌・搬送羽根を設けるとともに、回転キルンの両端部に原料の導入手段と排出手段を設け、回転キルンの内部に原料を収納して間接加熱により原料を熱分解する熱分解手段を備えた熱分解施設において、攪拌・搬送羽根間に橋渡しして原料の解砕を行う可撓性部材を設けたことを特徴とする熱分解施設。   A plurality of agitating and conveying blades are provided in the circumferential direction and the axial direction in a rotatable, cylindrical rotary kiln, and raw material introduction means and discharge means are provided at both ends of the rotary kiln, and raw materials are stored inside the rotary kiln. In a pyrolysis facility equipped with a pyrolysis means for pyrolyzing the raw material by indirect heating, a thermal decomposition is provided, which is provided with a flexible member that bridges between the stirring and conveying blades and crushes the raw material Facilities.
  3. 可撓性部材は、回転キルンの周方向に隣接する攪拌・搬送羽根間に橋渡しして設けたことを特徴とする請求項1又は2記載の回転キルン装置又は熱分解施設。   The rotary kiln apparatus or the thermal decomposition facility according to claim 1 or 2, wherein the flexible member is provided by bridging between the stirring / conveying blades adjacent in the circumferential direction of the rotary kiln.
  4. 可撓性部材は、回転キルンの略半径方向に対向する攪拌・搬送羽根間に橋渡しして設けたことを特徴とする請求項1〜3の何れかに記載の回転キルン装置又は熱分解施設。   The rotary kiln apparatus or thermal decomposition facility according to any one of claims 1 to 3, wherein the flexible member is provided by bridging between the stirring / conveying blades facing each other in a substantially radial direction of the rotary kiln.
  5. 可撓性部材は、回転キルンの軸方向に隣接する攪拌・搬送羽根間に橋渡しして設けたことを特徴とする請求項1〜4の何れかに記載の回転キルン装置又は熱分解施設。
    The rotary kiln apparatus or the thermal decomposition facility according to any one of claims 1 to 4, wherein the flexible member is provided by bridging between the stirring / conveying blades adjacent in the axial direction of the rotary kiln.
JP2004083896A 2004-03-23 2004-03-23 Rotary kiln apparatus and pyrolizing facility Pending JP2005273926A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2506122C1 (en) * 2012-07-31 2014-02-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный технический университет" Barrel dye mixer
RU2515304C1 (en) * 2012-11-16 2014-05-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный технический университет" Material mixing in barrel
WO2021116819A1 (en) * 2019-12-10 2021-06-17 株式会社半導体エネルギー研究所 Method for producing positive electrode active material, kiln, and heating furnace

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2506122C1 (en) * 2012-07-31 2014-02-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный технический университет" Barrel dye mixer
RU2515304C1 (en) * 2012-11-16 2014-05-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный технический университет" Material mixing in barrel
WO2021116819A1 (en) * 2019-12-10 2021-06-17 株式会社半導体エネルギー研究所 Method for producing positive electrode active material, kiln, and heating furnace

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