JP2001192669A - Method of carbonization using screw type carbonizing furnace - Google Patents
Method of carbonization using screw type carbonizing furnaceInfo
- Publication number
- JP2001192669A JP2001192669A JP2000006109A JP2000006109A JP2001192669A JP 2001192669 A JP2001192669 A JP 2001192669A JP 2000006109 A JP2000006109 A JP 2000006109A JP 2000006109 A JP2000006109 A JP 2000006109A JP 2001192669 A JP2001192669 A JP 2001192669A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- screw conveyor
- carbonization
- screw
- heating tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Coke Industry (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、有機性の被炭化物
をスクリュー式炭化炉により炭化する方法に関し、より
詳細には、下水汚泥、製紙工場スラッジ、化学工場スラ
ッジ、食品加工工場スラッジ、家畜糞等の有機物をスク
リュー式炭化炉により炭化する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for carbonizing organic carbonized materials by a screw type carbonizing furnace, and more particularly, to sewage sludge, paper mill sludge, chemical mill sludge, food processing mill sludge, livestock manure. And other methods for carbonizing an organic substance such as an organic substance using a screw type carbonization furnace.
【０００２】[0002]
【従来の技術】円筒状搬送路内に被炭化物を送りながら
連続して有機物を炭化する装置として、角筒状炉体の底
部に燃焼室を備え、炉体内に配設した乾留ガス吹出し口
を有する円筒状搬送路内に家畜糞等の有機物原料を搬送
しながら、燃焼室で発生する熱でそれらを乾燥、炭化す
る装置がある。これらの装置で、高い含水率の有機物原
料が供給された場合には、搬送速度を低下させて加熱時
間を長くしたり、炉内温度を上昇させる等の調節を行な
っている。2. Description of the Related Art As a device for continuously carbonizing an organic substance while feeding a substance to be carbonized into a cylindrical conveying path, a combustion chamber is provided at the bottom of a rectangular cylindrical furnace body, and a dry distillation gas blowing port provided in the furnace body is provided. There is a device for drying and carbonizing organic raw materials such as livestock dung while transporting them in a cylindrical transport path having the same, by using heat generated in a combustion chamber. When an organic material having a high water content is supplied by these devices, adjustments such as lowering the conveying speed to lengthen the heating time and increasing the furnace temperature are performed.
【０００３】このような乾燥、炭化を同一装置で連続し
て行なうことに伴う処理の困難さを解消する装置とし
て、有機物原料を乾燥させる蒸発用搬送路と、それを炭
化させる炭化用搬送路を区分し、これらの搬送路の間に
原料振分け手段を設置すると共に、その原料振分け手段
と蒸発用搬送路の搬送始端部との間に返戻用搬送路を設
けている。そして、原料振分け手段により、蒸発用搬送
路から送給された有機物原料を炭化用搬送路及び返戻用
搬送路のうち任意の一方又は双方に適宜振り分けること
ができるようにしているものがある（例えば、特許第２
７６４５６５号登録公報参照）。[0003] As an apparatus for solving the processing difficulties involved in continuously performing such drying and carbonization by the same apparatus, an evaporating transport path for drying organic material and a carbonizing transport path for carbonizing the same are used. In addition to the separation, a material distribution means is provided between these conveyance paths, and a return conveyance path is provided between the material distribution means and the conveyance start end of the evaporation conveyance path. In some cases, the organic material supplied from the evaporating conveyance path can be appropriately distributed to any one or both of the carbonizing conveyance path and the return conveyance path by the raw material distribution means (for example, , Patent No. 2
765565).
【０００４】[0004]
【発明が解決しようとする課題】通常、炭化炉において
は、炭化途中の材料状態の確認が困難であることから、
装置出口製品外観又は最終段出口温度で炭化状態を管
理、制御する必要があると共に、装置の滞留時間が１５
ないし３０分程度と長く、押し出し流れなので最終段出
口温度によるスクリュー速度のワンループ制御等では遅
れが大きく、品質のばらつきが大きかった。ところで、
炭化を確実に均一にするためには最終段出口の炭化物の
温度を適正値に保つことが必要であるが、そのためには
炭化炉入口ガス温度を制御することが有効である。ま
た、乾留ガスの燃焼で発生する有害物質を小型な設備で
効率よく除去する必要がある。さらに、伝熱を良くして
エネルギーを有効利用することが必要である。しかしな
がら、上述の装置の制御は、乾燥装置に係わるもので、
炭化炉にそのまま適用するには有機物である被炭化物の
物性等に対する考慮が不十分で、品質のばらつきが大き
いものである。本発明者は上述した課題に対処して創案
したものであって、スクリュー式炭化炉による炭化方法
について研究し、排出される炭化物の温度に応じて加熱
用ガス温度を調節し、被炭化物の搬送速度を変化させ、
炭化炉に燃焼用空気等の気体を吹き込む等により、設備
を小型にできることを究明した。Generally, in a carbonization furnace, it is difficult to confirm the state of the material during carbonization.
It is necessary to control and control the carbonization state based on the appearance of the product at the outlet of the device or the temperature at the outlet of the final stage.
Since the extrusion flow is as long as about 30 minutes or so, the delay is large in the one-loop control of the screw speed depending on the final stage outlet temperature, and the quality is largely dispersed. by the way,
In order to ensure uniform carbonization, it is necessary to maintain the temperature of the carbide at the outlet of the final stage at an appropriate value. For that purpose, it is effective to control the gas temperature at the inlet of the carbonization furnace. In addition, it is necessary to efficiently remove harmful substances generated by the combustion of the carbonization gas with a small facility. Furthermore, it is necessary to improve the heat transfer and use the energy effectively. However, the control of the above-described device relates to the drying device,
In order to apply it to a carbonization furnace as it is, consideration is not given to the physical properties of the organic matter to be carbonized, and the quality varies greatly. The inventor of the present invention has been devised in view of the above-described problem, has studied a carbonization method using a screw-type carbonization furnace, and adjusted a heating gas temperature in accordance with the temperature of the discharged carbide to convey the material to be carbonized. Change the speed,
It has been clarified that the equipment can be made compact by blowing gas such as combustion air into the carbonization furnace.
【０００５】本発明の目的とする処は、製品の品質を一
定にでき、炭化炉性能を向上して設備を小型にできるス
クリュー式炭化炉による炭化方法を提供することにあ
る。An object of the present invention is to provide a carbonization method using a screw-type carbonization furnace which can make the product quality constant, improve the carbonization furnace performance, and reduce the size of the equipment.
【０００６】[0006]
【課題を解決するための手段】そして、上記目的を達成
するための手段としての本発明の請求項１のスクリュー
式炭化炉による炭化方法は、加熱槽内に略水平に設けら
れた乾留ガス吹出し口を有する複数のスクリューコンベ
ヤ内を被炭化物を搬送しながら加熱して炭化する炭化方
法であって、少なくとも最終段又はその前段のスクリュ
ーコンベヤから排出される炭化物または前記被炭化物の
温度を測定して、その測定値に応じてスクリューコンベ
ヤの搬送速度を調節することを特徴とする。According to a first aspect of the present invention, there is provided a carbonization method using a screw-type carbonization furnace as a means for achieving the above object. It is a carbonization method of heating and carbonizing while conveying the material to be carbonized in a plurality of screw conveyors having a mouth, at least measuring the temperature of the carbide or the material to be carbonized discharged from the screw conveyor at the final stage or the preceding stage. The transport speed of the screw conveyor is adjusted according to the measured value.
【０００７】請求項２のスクリュー式炭化炉による炭化
方法は、前記最終段のスクリューコンベヤから排出され
る炭化物の温度と、加熱槽から排出される排ガスの温度
に応じて加熱槽に吹き込む熱風温度を調節する。請求項
３のスクリュー式炭化炉による炭化方法は、請求項１又
は２において、前記各調節方法をファジィ制御により行
なう。請求項４のスクリュー式炭化炉による炭化方法
は、請求項１〜３において、前記スクリューコンベヤの
搬送速度を炭化物または被炭化物の乾燥・炭化の進行状
態による体積変化に応じて調節する。請求項５のスクリ
ュー式炭化炉による炭化方法は、請求項１〜４におい
て、前記加熱槽内に側壁から気体を吹き込んで該加熱槽
内の燃焼ガスを攪拌する。According to a second aspect of the present invention, the temperature of the hot air blown into the heating tank is adjusted according to the temperature of the carbide discharged from the screw conveyor at the final stage and the temperature of the exhaust gas discharged from the heating tank. Adjust. According to a third aspect of the present invention, in the carbonization method using the screw type carbonization furnace, the respective adjustment methods are performed by fuzzy control in the first or second aspect. According to a fourth aspect of the present invention, in the carbonization method using the screw type carbonization furnace, the conveying speed of the screw conveyor is adjusted according to a volume change due to a progress of drying and carbonization of the carbide or the material to be carbonized. According to a fifth aspect of the present invention, in the carbonization method using the screw-type carbonization furnace, in the first to fourth aspects, a gas is blown into the heating tank from a side wall to stir the combustion gas in the heating tank.
【０００８】本発明におけるスクリュー式炭化炉による
炭化方法は、乾留ガス吹出し口を有するスクリューコン
ベヤで被炭化物の搬送速度を変えて加熱槽内を搬送しな
がら加熱し、炭化させる。この際、炭化物または被炭化
物の温度を測定して、その測定値に応じてスクリューコ
ンベヤの搬送速度を調節することで、加熱効率を向上さ
せ、製品の品質の均一化が図れる。また、前記スクリュ
ーコンベヤの搬送速度の調節と共に、最終段のスクリュ
ーコンベヤから排出される炭化物の温度と、加熱槽から
排出される排ガスの温度とに応じて加熱槽に吹き込む熱
風温度を調節することで、さらに加熱効率を向上させ、
製品の品質の均一化が図れる。この調節の際、ファジィ
制御をすることにより一層きめ細かな制御が可能とな
り、一層均一な品質の製品を得ることができる。In the carbonization method using a screw-type carbonization furnace according to the present invention, carbonization is performed while heating the carbonized material while transporting it in a heating tank while changing the transport speed of the material to be carbonized by a screw conveyor having a dry distillation gas outlet. At this time, by measuring the temperature of the carbide or the material to be carbide and adjusting the conveying speed of the screw conveyor according to the measured value, the heating efficiency can be improved and the quality of the product can be made uniform. Also, by adjusting the conveying speed of the screw conveyor, by adjusting the temperature of the carbide discharged from the final stage screw conveyor and the temperature of the hot air blown into the heating tank according to the temperature of the exhaust gas discharged from the heating tank. , Further improve the heating efficiency,
Uniform product quality can be achieved. At the time of this adjustment, finer control becomes possible by performing fuzzy control, and a product of more uniform quality can be obtained.
【０００９】[0009]
【発明の実施の形態】以下、添付図面を参照しながら、
本発明を具体化した実施の形態について説明する。ここ
に、図１は本発明に係るスクリュー式炭化炉による炭化
方法を説明する炭化炉の概略構成図である。図２は被炭
化物の搬送部の構成を示す説明図、図３は炭化炉の一部
の構成の加熱槽の気体吹き込み状態を示す断面図であ
る。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment embodying the present invention will be described. Here, FIG. 1 is a schematic configuration diagram of a carbonization furnace for explaining a carbonization method using a screw type carbonization furnace according to the present invention. FIG. 2 is an explanatory view showing a configuration of a transporting part of the material to be carbonized, and FIG. 3 is a cross-sectional view showing a gas blowing state of a heating tank having a partial configuration of the carbonization furnace.
【００１０】本願発明の実施に使用するスクリュー式炭
化炉１は、角筒状の加熱槽２内に乾留ガス吹出し口を有
する複数のスクリューコンベヤ３、４、５、６が略水平
に配設され、最上段のスクリューコンベヤ３に乾燥汚泥
を貯留したホッパー７から供給する汚泥供給装置８が接
続され、加熱槽２の下部には乾燥汚泥加熱用の予熱炉９
が接続されて構成されている。また、加熱槽２に周囲か
ら攪拌用の気体を吹き込むための吹込気体供給管１０が
設けられ、加熱槽２の上部には炭化に使用した排気を処
理する再燃焼炉１１が設けられている。In a screw type carbonizing furnace 1 used for carrying out the present invention, a plurality of screw conveyors 3, 4, 5, and 6 having a dry distillation gas outlet are disposed substantially horizontally in a rectangular cylindrical heating tank 2. A sludge supply device 8 for supplying a dried sludge from a hopper 7 storing the dried sludge is connected to the uppermost screw conveyor 3, and a preheating furnace 9 for heating the dried sludge is provided below the heating tank 2.
Are connected and configured. Further, a blowing gas supply pipe 10 for blowing a gas for stirring from the surroundings into the heating tank 2 is provided, and a reburning furnace 11 for treating exhaust gas used for carbonization is provided above the heating tank 2.
【００１１】スクリューコンベヤ３は一端側で汚泥供給
装置８に接続し、供給される乾燥汚泥を他端側に搬送す
る。このスクリューコンベヤ３は、図２に示すように、
複数個の乾留ガス吹出し口３ａを設けたトラフからな
り、他端側で第１接続シュート１２に接続し、第１接続
シュート１２は第１段のスクリューコンベヤ３と第２段
のスクリューコンベヤ４とを接続している。スクリュー
コンベヤ３の回転軸１３の他端側には伝導機構が連結さ
れ、駆動モータ１４に連結されている。スクリューコン
ベヤ３の搬送速度（搬送量）は、駆動モータ１４から伝
導機構を経て駆動される回転軸１３の回転数を調節する
ことにより行なわれる。ホッパ７に貯留された汚泥は、
汚泥供給装置８によりスクリューコンベヤ３の一端側に
供給され、駆動モータ１４により駆動されて、加熱槽２
内を他端側に搬送される間に、加熱槽２内を流れている
予熱炉９からの加熱ガスおよび自身の発生する乾留ガス
の燃焼によって加熱されて炭化される。第１接続シュー
ト１２には温度検出器１５が設けられ、スクリューコン
ベヤ３から第２段のスクリューコンベヤ４へ送られる被
炭化物の材料温度を測定する。この材料の温度の上昇程
度を知ることによって加熱程度を知ることができる。な
お、スクリュ−コンベヤ３，４，５，６は個々に駆動モ
−タを設け、変速可能としてもよい。The screw conveyor 3 is connected at one end to a sludge supply device 8, and conveys the supplied dry sludge to the other end. This screw conveyor 3, as shown in FIG.
It consists of a trough provided with a plurality of carbonized gas outlets 3a, and is connected at the other end to a first connection chute 12, which is connected to a first stage screw conveyor 3 and a second stage screw conveyor 4. Are connected. A transmission mechanism is connected to the other end of the rotary shaft 13 of the screw conveyor 3, and is connected to a drive motor 14. The conveyance speed (conveyance amount) of the screw conveyor 3 is adjusted by adjusting the number of rotations of the rotating shaft 13 driven by the drive motor 14 via the transmission mechanism. The sludge stored in the hopper 7 is
The sludge is supplied to one end side of the screw conveyor 3 by the sludge supply device 8 and is driven by the drive motor 14 so that the heating tank 2
While being conveyed to the other end side, it is heated and carbonized by the combustion of the heating gas from the preheating furnace 9 flowing in the heating tank 2 and the carbonization gas generated by itself. The first connection chute 12 is provided with a temperature detector 15 for measuring the material temperature of the material to be carbonized sent from the screw conveyor 3 to the second-stage screw conveyor 4. By knowing the degree of temperature rise of this material, the degree of heating can be known. The screw conveyors 3, 4, 5, and 6 may be individually provided with drive motors so that the speed can be changed.
【００１２】第２段のスクリューコンベヤ４は、一端側
で第１接続シュート１２に接続し他端側で第２接続シュ
ート１６に接続され、第２接続シュート１６を介して第
３のスクリューコンベヤ５に接続されている。スクリュ
ーコンベヤ４は、複数個の乾留ガス吹出し口４ａを設け
たトラフと回転軸１７とこれに設けられた羽根からな
り、本実施形態では、この回転軸１７には伝導機構１８
が設けられ、伝導機構１８は回転軸１３に連結し、回転
軸１３を介して駆動されるようになっている。スクリュ
ーコンベヤ４は、スクリューコンベヤ３より搬送量が等
しいか小さくなるように、回転数、直径、羽根高さ等を
変えるのが好ましい。搬送量を変えてスクリューコンベ
ヤ４内での被炭化物の充填量を増やし、スクリューコン
ベヤ４壁に接触する量を増やすことによって良く加熱さ
れるようにする。The second stage screw conveyor 4 is connected at one end to the first connection chute 12 and at the other end to the second connection chute 16, and is connected via the second connection chute 16 to the third screw conveyor 5. It is connected to the. The screw conveyor 4 includes a trough provided with a plurality of carbonized gas outlets 4a, a rotary shaft 17, and blades provided on the rotary shaft 17. In the present embodiment, the rotary shaft 17 includes a transmission mechanism 18
Is provided, and the transmission mechanism 18 is connected to the rotation shaft 13 and is driven via the rotation shaft 13. It is preferable to change the rotation speed, the diameter, the blade height, and the like of the screw conveyor 4 so that the conveyance amount is equal to or smaller than that of the screw conveyor 3. The amount of the material to be carbonized in the screw conveyor 4 is increased by changing the conveying amount, and the amount of the material to be brought into contact with the wall of the screw conveyor 4 is increased so that the screw conveyor 4 is heated well.
【００１３】スクリューコンベヤ４に送られた被炭化物
は、一端側から他端側へ送られながら加熱され、他端側
で第２接続シュート１６により第３のスクリューコンベ
ヤ５に送られる。第２接続シュート１６には温度検出器
１９が設けられ、スクリューコンベヤ４から第３段のス
クリューコンベヤ５へ送られる被炭化物の材料温度を測
定する。この材料の温度の上昇程度を知ることによって
加熱程度を知ることができる。The carbonized material sent to the screw conveyor 4 is heated while being sent from one end to the other end, and is sent to the third screw conveyor 5 by the second connection chute 16 at the other end. The second connection chute 16 is provided with a temperature detector 19 for measuring the material temperature of the material to be carbonized sent from the screw conveyor 4 to the third-stage screw conveyor 5. By knowing the degree of temperature rise of this material, the degree of heating can be known.
【００１４】第３段のスクリューコンベヤ５は、一端側
で第２接続シュート１６に接続し、他端側で第３接続シ
ュート２０に接続され、第３接続シュート２０を介して
第４のスクリューコンベヤ５に接続されている。スクリ
ューコンベヤ５は、複数個の乾留ガス吹出し口５ａを設
けたトラフと回転軸２１とこれに設けられた羽根からな
り、本実施形態では、この回転軸２１には伝導機構２２
が設けられ、伝導機構２２は駆動モータ２３に連結し、
駆動モータ２３により回転数が可変に駆動されるように
なっている。スクリューコンベヤ５は、スクリューコン
ベヤ４より搬送量が等しいか小さくなるように、回転
数、直径、羽根高さ等を変えるのが好ましい。炭化の進
行により嵩が減少した被炭化物の搬送量を変えてスクリ
ューコンベヤ５内での被炭化物の充填量を増やし、スク
リューコンベヤ５壁に接触する量を増やすことによって
伝熱を良くし、加熱効率をよくする。The third stage screw conveyor 5 is connected at one end to a second connection chute 16, at the other end to a third connection chute 20, and via the third connection chute 20 to a fourth screw conveyor. 5 is connected. The screw conveyor 5 includes a trough provided with a plurality of carbonized gas outlets 5a, a rotating shaft 21 and blades provided thereon. In the present embodiment, the rotating shaft 21 includes a transmission mechanism 22
Is provided, and the transmission mechanism 22 is connected to the drive motor 23,
The rotation speed is variably driven by the drive motor 23. It is preferable to change the number of revolutions, the diameter, the blade height, and the like of the screw conveyor 5 so that the conveyance amount is equal to or smaller than that of the screw conveyor 4. The heat transfer efficiency is improved by increasing the amount of the material to be carbonized in the screw conveyor 5 by increasing the amount of the material to be carbonized in the screw conveyor 5 by changing the conveyance amount of the material to be carbonized whose bulk has been reduced due to the progress of carbonization, thereby improving heat transfer. Better.
【００１５】スクリューコンベヤ５に送られた被炭化物
は、一端側から他端側へ送られながら加熱され、他端側
で第３接続シュート２０により第４のスクリューコンベ
ヤ６に送られる。第３接続シュート２０には温度検出器
２４が設けられ、スクリューコンベヤ５から第４段のス
クリューコンベヤ６へ送られる被炭化物の材料温度を測
定する。この材料の温度の上昇程度を知ることによって
スクリューコンベヤ５での加熱程度を知ることができ
る。The carbonized material sent to the screw conveyor 5 is heated while being sent from one end to the other end, and is sent to the fourth screw conveyor 6 by the third connection chute 20 at the other end. The third connection chute 20 is provided with a temperature detector 24 for measuring the material temperature of the carbonized material sent from the screw conveyor 5 to the fourth stage screw conveyor 6. By knowing the degree of temperature rise of this material, the degree of heating by the screw conveyor 5 can be known.
【００１６】第４段のスクリューコンベヤ６は、一端側
で第３接続シュート２０に接続し、他端側に被炭化物の
排出口２５が設けられている。スクリューコンベヤ６
は、複数個の乾留ガス吹出し口６ａを設けたトラフと回
転軸２６とこれに設けられた羽根からなり、本実施形態
では、この回転軸２６には伝導機構２７が設けられ、伝
導機構２７は前記第３段のスクリューコンベヤ５を駆動
する駆動モータ２３に連結し、駆動モータ２３又は伝導
機構２７により回転数が可変に駆動されるようになって
いる。スクリューコンベヤ６は、スクリューコンベヤ５
より搬送量が等しいか小さくなるように、回転数、直
径、羽根高さ等を変えるのが好ましい。炭化の進行によ
り嵩が減少した被炭化物の搬送量を変えてスクリューコ
ンベヤ６内での被炭化物の充填量を増やし、スクリュー
コンベヤ６での炭化を効率よく行なわれるようにする。
スクリューコンベヤ６で他端側に搬送されながら炭化さ
れた炭化物（製品）は、排出口２５から排出され、製品
取出機３０により製品として取り出される。排出口２５
近辺には温度検出器２８が設けられ、最終段のスクリュ
ーコンベヤ６から排出される炭化物の材料温度を測定す
る。The fourth stage screw conveyor 6 has one end connected to the third connection chute 20 and the other end provided with a discharge port 25 for the material to be carbonized. Screw conveyor 6
Is composed of a trough provided with a plurality of carbonized gas outlets 6a, a rotating shaft 26, and blades provided thereon. In the present embodiment, the rotating shaft 26 is provided with a transmission mechanism 27, and the transmission mechanism 27 is The third stage conveyor 5 is connected to a drive motor 23 for driving the screw conveyor 5, and the rotation speed is variably driven by the drive motor 23 or the transmission mechanism 27. The screw conveyor 6 is a screw conveyor 5
It is preferable to change the rotation speed, the diameter, the blade height, and the like so that the transport amount is equal or smaller. The amount of the material to be carbonized in the screw conveyor 6 is increased by changing the conveyance amount of the material to be carbonized whose bulk has been reduced by the progress of carbonization, so that the carbonization in the screw conveyor 6 can be performed efficiently.
The carbide (product) carbonized while being conveyed to the other end by the screw conveyor 6 is discharged from the discharge port 25 and is taken out as a product by the product take-out machine 30. Outlet 25
A temperature detector 28 is provided in the vicinity, and measures the material temperature of the carbide discharged from the screw conveyor 6 at the last stage.
【００１７】加熱槽２は、外殻のケーシングの内側に断
熱材が設けられ、内部にスクリューコンベヤ３、４、
５、６が配置され、約４００〜９００℃の予熱炉出口ガ
スにより加熱される。加熱槽２に開口して、吹込気体供
給管１０に連結した複数個の吹込開口３２ａ，３３ａ，
３４ａ，３５ａが設けられている。本実施形態では、加
熱槽２の前面壁の吹込開口３３ａ，３５ａと後面壁の吹
込開口３２ａ，３４ａ及び隣接する上下方向の段の吹込
開口、例えば、３２ａと３３ａ，３４ａと３５ａとは千
鳥配列としている。また、加熱槽２の吹込開口３２ａ，
３３ａ，３４ａ，３５ａへ供給する気体は、供給管１０
に設けた調節弁３６により制御する。The heating tank 2 is provided with a heat insulating material inside a casing of an outer shell, and has screw conveyors 3, 4,.
5 and 6 are arranged and heated by the preheating furnace outlet gas at about 400 to 900 ° C. A plurality of blowing openings 32a, 33a, which open to the heating tank 2 and are connected to the blowing gas supply pipe 10,
34a and 35a are provided. In the present embodiment, the blowing openings 33a and 35a in the front wall of the heating tank 2 and the blowing openings 32a and 34a in the rear wall and the blowing openings in adjacent vertical steps, for example, 32a and 33a, and 34a and 35a are staggered. And In addition, the blowing openings 32a of the heating tank 2,
The gas supplied to 33a, 34a, 35a is supplied to the supply pipe 10
The control is performed by a control valve 36 provided in the above.
【００１８】各気体吹込開口３２ａ，３３ａ，３４ａ，
３５ａは、図３に示すように、下方に向けて気体を噴射
し、加熱槽２内での気体の滞留を良くすると共に撹拌が
良好に行なえるようにしている。なお、吹込開口の形
状、寸法、配置等は、一定でもよいし、変えてもよい。
また、開口の吹込方向を、上下方向の段毎に変えたり、
左右方向で変えてもよい。加熱ガスと吹込気体との進行
方向を交差するようにすると、攪拌をより良く行なうこ
とができる。各吹込開口３２ａ，３３ａ，３４ａ，３５
ａへ供給する気体を調節弁３６で制御しているが、各吹
込開口ごと若しくは吹込開口をグループ分けしてグルー
プごとに制御するようにしてもよい。Each of the gas blowing openings 32a, 33a, 34a,
As shown in FIG. 3, 35a injects gas downward, so that the gas stays in the heating tank 2 and the stirring can be performed satisfactorily. Note that the shape, size, arrangement, and the like of the blowing openings may be constant or may be changed.
In addition, the blowing direction of the opening can be changed for each vertical step,
It may be changed in the left-right direction. When the traveling directions of the heating gas and the blown gas are made to cross each other, the stirring can be performed better. Each blow opening 32a, 33a, 34a, 35
Although the gas supplied to a is controlled by the control valve 36, it may be controlled for each blowing opening or for each group by grouping the blowing openings.
【００１９】加熱槽２の排気を処理する再燃焼炉１１
は、加熱槽２と排気路４１で連通され、排気路４１には
温度検出器４２、圧力検出器４３が設けられている。加
熱槽２の排気温度は温度検出器４２で測定され、圧力は
圧力検出器４３で測定され、図示されていない排気側設
備で調節されるようになっている。再燃焼炉１１は、所
定の温度で加熱槽２の排気を処理するように加熱装置が
設けられている。また、再燃焼炉１１には、圧力を逃が
す爆発口、処理排気を排気する排気路４５を設けると共
に、停止時の熱気逃し路４６を設けている。酸素濃度検
出器４７及び温度検出器４８を排気路４５に設け、再燃
焼炉１１で排気の浄化を所要の条件でできるようにして
いる。Reburning furnace 11 for treating exhaust gas from heating tank 2
Is connected to the heating tank 2 via an exhaust passage 41, and the exhaust passage 41 is provided with a temperature detector 42 and a pressure detector 43. The exhaust temperature of the heating tank 2 is measured by a temperature detector 42, and the pressure is measured by a pressure detector 43, and is adjusted by an exhaust-side facility (not shown). The reburning furnace 11 is provided with a heating device for processing the exhaust gas from the heating tank 2 at a predetermined temperature. Further, the reburning furnace 11 is provided with an explosion port for releasing pressure, an exhaust path 45 for exhausting process exhaust gas, and a hot air release path 46 at the time of stop. An oxygen concentration detector 47 and a temperature detector 48 are provided in the exhaust path 45 so that the exhaust gas can be purified in the reburning furnace 11 under required conditions.
【００２０】製品取出機３０には、冷却缶５０が設けら
れ、冷却缶５０に冷却水供給管５１が連結され、排出口
２５から排出された炭化物を製品取出機３０で搬送中に
冷却し、冷却製品を得るようにしている。冷却缶５０か
ら排出された使用水は、排水管５２により、再使用のた
めの冷却装置、又は排水するための処理もしくはそのま
ま排水するために排水部に送られる。The product take-out machine 30 is provided with a cooling can 50, a cooling water supply pipe 51 is connected to the cooling can 50, and the carbide discharged from the discharge port 25 is cooled by the product take-out machine 30 during transportation. Trying to get a cooling product. The used water discharged from the cooling can 50 is sent to a cooling device for reuse, or to a drainage unit for treatment for drainage or drainage as it is, through a drainpipe 52.
【００２１】以下に、上記構成からなる炭化炉により、
被炭化物として乾燥汚泥を炭化する方法について説明す
る。先ず、加熱槽２を予熱炉９で熱風を発生させて、そ
の熱風で加熱して所定の温度に昇温する。予熱炉９から
加熱槽２へ送る入口ガス温度は温度検出器２９により測
定して予熱炉バ−ナ５３を操作して調節し、加熱槽２か
ら出る出口排ガス温度は温度検出器４２により測定す
る。加熱槽２の排気は再燃焼炉１１を経て排気路４５を
通して、必要設備に送る。必要ならば、排気の温度は温
度検出器４８により測定して再燃焼炉バ−ナ５４を操作
して調節し、排気中の酸素濃度は酸素濃度検出器４７で
測定する。In the following, the carbonization furnace having the above structure
A method of carbonizing dry sludge as a material to be carbonized will be described. First, the heating tank 2 generates hot air in the preheating furnace 9 and is heated by the hot air to raise the temperature to a predetermined temperature. The temperature of the inlet gas sent from the preheating furnace 9 to the heating tank 2 is measured by the temperature detector 29 and adjusted by operating the preheating furnace burner 53, and the temperature of the exhaust gas discharged from the heating tank 2 is measured by the temperature detector 42. . The exhaust gas from the heating tank 2 passes through the reburning furnace 11 and is sent to necessary facilities through an exhaust passage 45. If necessary, the temperature of the exhaust gas is measured by the temperature detector 48 and adjusted by operating the reburning furnace burner 54, and the oxygen concentration in the exhaust gas is measured by the oxygen concentration detector 47.
【００２２】所定の温度に昇温したら、ホッパー７の乾
燥汚泥を汚泥供給装置８を運転して所定の供給速度で供
給する。スクリューコンベヤ３で加熱槽２中を搬送しつ
つ加熱し、第１接続シュート１２を介してスクリューコ
ンベヤ４に移送する。スクリューコンベヤ３で加熱され
た被炭化物の温度を温度検出器１５で測定する。同様に
して、スクリューコンベヤ５、スクリューコンベヤ６と
順次搬送しつつ加熱して炭化し、製品取出機３０に搬送
する。冷却水を冷却缶５０に供給して炭化物を冷却し、
燃焼の危険をなくしてから製品を取り出す。スクリュー
コンベヤ６の出口で炭化物の出口温度を温度検出器２８
により測定する。この温度に基づいて予熱炉９から加熱
槽２へ送る入口ガス温度、風量等を調節する。When the temperature is raised to a predetermined temperature, the dried sludge in the hopper 7 is supplied at a predetermined supply speed by operating the sludge supply device 8. The heating is performed while being conveyed in the heating tank 2 by the screw conveyor 3 and transferred to the screw conveyor 4 via the first connection chute 12. The temperature of the carbonized material heated by the screw conveyor 3 is measured by the temperature detector 15. Similarly, it is heated and carbonized while being sequentially conveyed to the screw conveyor 5 and the screw conveyor 6, and is conveyed to the product take-out machine 30. Cooling water is supplied to the cooling can 50 to cool the carbide,
Remove the product after eliminating the danger of burning. At the outlet of the screw conveyor 6, the outlet temperature of the carbide is detected by a temperature detector 28.
Measured by Based on this temperature, the temperature of the inlet gas sent from the preheating furnace 9 to the heating tank 2, the air volume, and the like are adjusted.
【００２３】次に、制御方法について説明する。炭化の
進行による被炭化物（材料）の体積変化に合わせて各段
スクリューコンベヤ３、４、５、６の搬送量をそれぞれ
操作し、充填率を適性値に維持する方法について説明す
る。ここで、汚泥供給装置８、スクリューコンベヤ３，
４，５，６のスクリュー径、ピッチ、１回転当りの搬送
容積は同じとする。又、各スクリュ−コンベヤは個々に
駆動モ−タを有し、変速可能としている。泥供給装置８
での材料の体積比を１．０、スクリュー回転比を１．
０、充填率を１００％とし、スクリューコンベヤ３出口
の材料体積比が０．８、スクリューコンベヤ４出口の材
料体積比が０．７、スクリューコンベヤ５出口の材料体
積比が０．６、スクリューコンベヤ６出口の材料体積比
が０．５となる材料であるとする。この場合の各段の制
御スクリュー回転数比と達成充填率との関係を表１に示
す。材料搬送量をこの表の、スクリューの回転数比によ
り変えることにより、スクリューで運ばれる材料の充填
率を高くし、材料の加熱効率を向上することができる。
なお、炭化途中で体積が増加する材料に関しては、スク
リュ−回転比を１以上として良い。Next, a control method will be described. A description will be given of a method of maintaining the filling rate at an appropriate value by manipulating the transport amounts of the screw conveyors 3, 4, 5, and 6 in accordance with the volume change of the material to be carbide (material) due to the progress of carbonization. Here, the sludge supply device 8, the screw conveyor 3,
The screw diameter, pitch, and transport volume per rotation of 4, 5, and 6 are the same. Further, each screw conveyor has a drive motor individually so that the speed can be changed. Mud supply device 8
The volume ratio of the material was 1.0 and the screw rotation ratio was 1.
0, the filling rate is 100%, the material volume ratio at the outlet of the screw conveyor 3 is 0.8, the material volume ratio at the outlet of the screw conveyor 4 is 0.7, the material volume ratio at the outlet of the screw conveyor 5 is 0.6, and the screw conveyor is It is assumed that the material has a material volume ratio at the outlet 6 of 0.5. Table 1 shows the relationship between the control screw rotational speed ratio of each stage and the achieved filling rate. By changing the material conveyance amount according to the ratio of the number of rotations of the screw in this table, the filling rate of the material carried by the screw can be increased, and the heating efficiency of the material can be improved.
For materials whose volume increases during carbonization, the screw rotation ratio may be 1 or more.
【００２４】[0024]
【表１】 [Table 1]
【００２５】 さらに、加熱槽２、スクリューコンベ
ヤ速度及び温度をファジィ制御する方法を説明する。ま
ず、スクリューコンベヤ３〜６の速度の速度制御を被炭
化物または炭化物の温度でファジィ制御する方法を説明
する。いま、スクリューコンベヤ６の出口の炭化物の温
度が４５０℃を適温とする。スクリューコンベヤ速度と
出口の被炭化物温度との関係を図５に示し、３段目のス
クリューコンベヤ５出口と最終段のスクリューコンベヤ
６出口のファジィ集合のメンバーシップ関数をそれぞれ
図６、図７にそれぞれ示し、スクリューコンベヤ３〜６
の速度のファジィ制御方法を表２に示す。Further, a method for fuzzy controlling the heating tank 2, the screw conveyor speed and the temperature will be described. First, a method of fuzzy controlling the speed of the screw conveyors 3 to 6 with the temperature of the carbide or the carbide will be described. It is assumed that the temperature of the carbide at the outlet of the screw conveyor 6 is 450 ° C. The relationship between the screw conveyor speed and the carbonized material temperature at the outlet is shown in FIG. 5, and the membership functions of fuzzy sets at the outlet of the third-stage screw conveyor 5 and the outlet of the final-stage screw conveyor 6 are shown in FIGS. 6 and 7, respectively. Shown, screw conveyor 3-6
Table 2 shows a fuzzy control method of the speed of the above.
【００２６】[0026]
【表２】 [Table 2]
【００２７】スクリュ−コンベヤ出口被炭化物温度を正
に大きい（ＰＬ）、ほとんど適正（ＺＲ）、負に大きい
（ＮＬ）と分類した場合、スクリューコンベヤの速度制
御を被炭化物の体積変化に加えて各段スクリューコンベ
ヤ出口の被炭化物温度でスクリューコンベヤの速度を制
御することで、品質の均一化と高品質化を図ることがで
きる。さらに、この表２に示すファジィ制御によりスク
リューコンベヤ速度を制御すると、ワンル−プ制御では
困難なきめ細かい制御ができ、品質の均一化と高品質化
を図ることができる。When the temperature of the carbonized material at the screw conveyor outlet is classified as positively large (PL), almost appropriate (ZR), or negatively large (NL), the speed control of the screw conveyor is performed in addition to the volume change of the carbonized material. By controlling the speed of the screw conveyor at the temperature of the carbonized material at the outlet of the stepped screw conveyor, it is possible to achieve uniform quality and high quality. Further, when the screw conveyor speed is controlled by the fuzzy control shown in Table 2, fine-grained control, which is difficult with the one-loop control, can be performed, and uniform quality and high quality can be achieved.
【００２８】つぎに、被炭化物の材料の水分をファジィ
制御する方法は、製品温度及び加熱槽出口排ガス温度の
メンバーシップ関数が図７、図８に示すようになってい
るとすると、スクリューコンベヤ最終段出口の炭化物温
度と炭化炉出口排ガス温度との関連で表３に示すような
関係で制御することになる。Next, the method of fuzzy control of the water content of the material to be carbonized is based on the assumption that the membership functions of the product temperature and the exhaust gas temperature at the outlet of the heating tank are as shown in FIGS. Control is performed according to the relationship shown in Table 3 in relation to the carbide temperature at the step outlet and the exhaust gas temperature at the carbonization furnace outlet.
【００２９】[0029]
【表３】 [Table 3]
【００３０】加熱槽入口ガス温度を制御するには、メン
バーシップ関数として図７、図８、図９に示すように、
最終段炭化物温度、加熱槽出口排ガス温度及び加熱槽入
口ガス温度についてのものであるとすると、加熱槽の入
口ガス温度を負に大きい（ＮＬ）、ほとんど適正（Ｚ
Ｒ）、正に大きい（ＰＬ）と分類した場合に対応しての
ファジィ制御をそれぞれ表４、表５、表６に示す。な
お、この制御は遠隔設定値変更により、予熱炉バ−ナ５
３を操作して行なう。In order to control the gas temperature at the inlet of the heating tank, as shown in FIGS. 7, 8 and 9 as a membership function,
Assuming that the temperature of the final stage carbide, the temperature of the exhaust gas at the outlet of the heating tank, and the temperature of the gas at the inlet of the heating tank are negative, the inlet gas temperature of the heating tank is negatively large (NL) and almost appropriate (Z
Tables 4, 5, and 6 show fuzzy controls corresponding to the case of classifying R) and a large value (PL), respectively. Note that this control is performed by changing the remote set value, thereby controlling the preheating furnace burner 5.
Operate 3
【００３１】[0031]
【表４】 [Table 4]
【００３２】[0032]
【表５】 [Table 5]
【００３３】[0033]
【表６】 [Table 6]
【００３４】上記したようにファジィ制御によれば、要
素を多くしてもそれに相応の制御をすることができ、き
め細かい制御ができる。その結果、運転状態が安定し、
製品の品質が均一になり、高品質の製品を得ることがで
きる。As described above, according to the fuzzy control, even if the number of elements is increased, it is possible to perform a control corresponding to the increased number of elements, and it is possible to perform fine control. As a result, the driving condition becomes stable,
The quality of the products becomes uniform, and high quality products can be obtained.
【００３５】なお、上記説明において、ファジィ制御で
スクリューコンベヤ搬送速度、加熱槽入口ガス温度等を
制御する例を説明したが、これに限られるものでなく、
ＰＩＤ制御によっても被炭化物の温度により、スクリュ
ーコンベヤ搬送速度を操作し、炭化物の温度を制御する
ことによって炭化状態の調整をすることができる。多入
力のファジィ制御とすることにより、この効果を一層良
好にすることができるのである。また、度合いをＰＬ，
ＺＲ，ＮＬの３つに分類したがもっと多い分類としても
よい。また、加熱槽の吹き込み気体として空気を吹き込
んで、被炭化物からの発生ガスが燃焼する例で示した
が、燃焼ガス、窒素ガス等の不活性のガスを吹き込んで
もよい。In the above description, an example in which the screw conveyor conveyance speed, the temperature of the gas at the inlet of the heating tank, and the like are controlled by fuzzy control has been described. However, the present invention is not limited to this.
By the PID control, the screw conveyor conveyance speed is controlled according to the temperature of the carbide, and the carbonization state can be adjusted by controlling the temperature of the carbide. This effect can be further improved by using multi-input fuzzy control. Also, the degree is PL,
ZR and NL are classified into three, but more classifications may be used. In addition, although an example is shown in which air is blown as the gas to be blown into the heating tank and the gas generated from the carbonized material burns, an inert gas such as a combustion gas or a nitrogen gas may be blown.
【００３６】[0036]
【発明の効果】本願発明のスクリュー式炭化炉による炭
化方法は、少なくとも最終段又はその前段のスクリュー
コンベヤから排出される前記炭化物または被炭化物の温
度を測定して、その測定値に応じてスクリューコンベヤ
の搬送速度を調節するようにしたので、安定した運転に
より品質のばらつきが小さい均一な炭化物を得ることが
でき、加熱効率を良くして設備を小型化することができ
る。The carbonization method using the screw type carbonization furnace according to the present invention measures the temperature of at least the carbide or the material to be carbonized discharged from the screw conveyor at the last stage or the preceding stage, and according to the measured value, the screw conveyor. The transport speed is adjusted, so that a stable operation makes it possible to obtain a uniform carbide with a small variation in quality, thereby improving the heating efficiency and reducing the size of the equipment.
【００３７】請求項２のスクリュー式炭化炉による炭化
方法は、最終段のスクリューコンベヤから排出される炭
化物の温度と、加熱槽から排出される排ガスの温度に応
じて加熱槽に吹き込む熱風温度を調節するので、運転状
態が安定し、製品の温度を一定にできるから、品質をよ
り一定にできる。請求項３のスクリュー式炭化炉による
炭化方法は、各調節方法をファジィ制御により行なうの
で、一層きめ細かな制御ができる結果、一層前記効果を
良好にすることができる。請求項４のスクリュー式炭化
炉による炭化方法は、スクリューコンベヤの搬送速度を
被炭化物の乾燥・炭化の進行状態による体積変化に応じ
て調節するので、被炭化物の加熱を効率よく行なえるか
ら、装置を小型にでき、製品の品質をよくすることがで
きる。請求項５のスクリュー式炭化炉による炭化方法
は、加熱槽内に側壁から気体を吹き込んで該加熱槽内の
燃焼ガスを攪拌するので、排ガス処理装置を小型にでき
る結果、設備全体を小型化できる。According to the carbonization method using the screw type carbonization furnace, the temperature of the hot air blown into the heating tank is adjusted according to the temperature of the carbide discharged from the screw conveyor at the final stage and the temperature of the exhaust gas discharged from the heating tank. Therefore, the operating state is stable and the temperature of the product can be kept constant, so that the quality can be kept more constant. In the carbonization method using the screw-type carbonization furnace according to the third aspect, since each adjustment method is performed by fuzzy control, finer control can be performed, so that the above effect can be further improved. In the carbonization method using the screw-type carbonization furnace according to claim 4, since the conveying speed of the screw conveyor is adjusted according to the volume change due to the progress of drying and carbonization of the carbonized material, the heating of the carbonized material can be performed efficiently. Can be reduced in size, and the quality of the product can be improved. In the carbonization method using the screw-type carbonization furnace according to the fifth aspect, the gas is blown from the side wall into the heating tank and the combustion gas in the heating tank is stirred, so that the exhaust gas treatment device can be reduced in size and as a result, the entire equipment can be reduced in size. .
【図１】 図１は本発明に係るスクリュー式炭化炉によ
る炭化方法を説明する炭化炉の概略構成図である。FIG. 1 is a schematic configuration diagram of a carbonization furnace explaining a carbonization method using a screw type carbonization furnace according to the present invention.
【図２】 被炭化物の搬送部を説明するための構成図で
ある。FIG. 2 is a configuration diagram for explaining a transporting part of a material to be carbide;
【図３】 加熱槽の気体吹き込み口部を示す断面図であ
る。FIG. 3 is a sectional view showing a gas blowing port of a heating tank.
【図４】 制御装置の制御フロ−を示すブロック図であ
る。FIG. 4 is a block diagram showing a control flow of the control device.
【図５】 各スクリューコンベヤ速度と各スクリューコ
ンベヤ出口温度との関係を示すグラフである。FIG. 5 is a graph showing a relationship between each screw conveyor speed and each screw conveyor outlet temperature.
【図６】 ３段スクリューコンベヤ出口の被炭化物温度
のメンバーシップ関数を示すグラフである。FIG. 6 is a graph showing the membership function of the temperature of the carbonized material at the outlet of the three-stage screw conveyor.
【図７】 ４段スクリューコンベヤ出口の炭化物温度の
メンバーシップ関数を示すグラフである。FIG. 7 is a graph showing the membership function of carbide temperature at the exit of a four-stage screw conveyor.
【図８】 加熱槽の出口ガス温度とメンバーシップ関数
を示すグラフである。FIG. 8 is a graph showing an outlet gas temperature of a heating tank and a membership function.
【図９】 加熱槽の気体吹き込み温度とメンバーシップ
関数を示すグラフである。FIG. 9 is a graph showing a gas blowing temperature of a heating tank and a membership function.
１：スクリュー式炭化炉 ２：加熱槽 ３，４，５，６：スクリューコンベヤ ７：ホッパー ８：汚泥供給装置
９：予熱炉 １０：吹込気体供給管 １１：再燃焼炉
１２：第１接続シュート １３：回転軸 １４：駆動モータ
１５：温度検出器 １６：第２接続シュート １７：回転軸
１８：伝導機構 １９：温度検出器 ２０：第３接続シュート ２
１：回転軸 ２２：伝導機構 ２３：駆動モータ
２４：温度検出器 ２５：排出口 ２６：回転軸
２７：伝導機構 ２９：温度検出器 ３０：製品取出機 ３２ａ，３３ａ，３４ａ，３５ａ：吹込開口
３６：調節弁 ４１：排気路 ４２：温度検出器
４３：圧力検出器 ４４：熱風逃し路 ４５：排気路
４６：熱風逃し弁 ４７：酸素濃度検出器 ４８：温度検出器 ５０：冷却缶 ５１：冷却水供給管
５２：排水管 ５３：予熱炉バ−ナ ５４：再燃焼炉バ−ナ1: Screw type carbonization furnace 2: Heating tank 3, 4, 5, 6: Screw conveyor 7: Hopper 8: Sludge supply device
9: Preheating furnace 10: Inlet gas supply pipe 11: Reburning furnace
12: first connection chute 13: rotating shaft 14: drive motor
15: Temperature detector 16: Second connection chute 17: Rotating shaft
18: conduction mechanism 19: temperature detector 20: third connection chute 2
1: rotating shaft 22: transmission mechanism 23: drive motor
24: temperature detector 25: outlet 26: rotating shaft
27: conduction mechanism 29: temperature detector 30: product take-out machine 32a, 33a, 34a, 35a: blow opening
36: control valve 41: exhaust path 42: temperature detector
43: Pressure detector 44: Hot air escape path 45: Exhaust path
46: Hot air relief valve 47: Oxygen concentration detector 48: Temperature detector 50: Cooling can 51: Cooling water supply pipe
52: Drain pipe 53: Preheating furnace burner 54: Reburning furnace burner
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀井 重希 東京都新宿区西新宿三丁目４番７号 栗田 工業株式会社内 (72)発明者 丹藤 嘉昭 東京都中央区日本橋三丁目９番２号 第二 丸善ビルヂング 巴工業株式会社内 (72)発明者 山崎 日出夫 静岡県榛原郡吉田町神戸1235番地 株式会 社大川原製作所内 Ｆターム(参考） 4D004 AA02 AA04 AA50 CA15 CA26 CA42 CB08 CB42 CC02 DA02 DA06 DA12 4D059 AA01 AA02 AA07 AA08 BB02 BB03 BB12 EA06 EA10 EB02 EB15 EB20 4H012 HA03 HA05 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigeki Horii 3-4-7 Nishishinjuku, Shinjuku-ku, Tokyo Inside Kurita Kogyo Co., Ltd. (72) Yoshiaki Tanto 3-9-1, Nihonbashi, Chuo-ku, Tokyo 2nd Maruzen Building Tomoe Kogyo Co., Ltd. (72) Inventor Hideo Yamazaki 1235 Kobe, Yoshida-cho, Haibara-gun, Shizuoka Pref. AA01 AA02 AA07 AA08 BB02 BB03 BB12 EA06 EA10 EB02 EB15 EB20 4H012 HA03 HA05
Claims (5)
ス吹出し口を有する複数のスクリューコンベヤ内を被炭
化物を搬送しながら加熱して炭化する炭化方法であっ
て、少なくとも最終段又はその前段のスクリューコンベ
ヤから排出される炭化物または前記被炭化物の温度を測
定して、その測定値に応じてスクリューコンベヤの搬送
速度を調節することを特徴とするスクリュー式炭化炉に
よる炭化方法。1. A carbonization method for heating and carbonizing a plurality of screw conveyors having a dry distillation gas blow-out port provided substantially horizontally in a heating tank while conveying a material to be carbonized, wherein at least a final stage or a preceding stage thereof is provided. The method according to claim 1, wherein the temperature of the carbide discharged from the screw conveyor or the temperature of the material to be carbonized is measured, and the conveying speed of the screw conveyor is adjusted according to the measured value.
排出される炭化物の温度と、加熱槽から排出される排ガ
スの温度に応じて加熱槽に吹き込む熱風温度を調節する
請求項１に記載のスクリュー式炭化炉による炭化方法。2. The screw type carbonizing apparatus according to claim 1, wherein the temperature of the hot air blown into the heating tank is adjusted according to the temperature of the carbide discharged from the screw conveyor at the final stage and the temperature of the exhaust gas discharged from the heating tank. Furnace carbonization method.
行なう請求項１又は２に記載のスクリュー式炭化炉によ
る炭化方法。3. The carbonization method according to claim 1, wherein each of the adjustment methods is performed by fuzzy control.
炭化物または被炭化物の乾燥・炭化の進行状態による体
積変化に応じて調節する請求項１〜３に記載のスクリュ
ー式炭化炉による炭化方法。4. The carbonization method using a screw-type carbonization furnace according to claim 1, wherein the conveying speed of the screw conveyor is adjusted according to a volume change depending on a progress of drying and carbonization of the carbide or the material to be carbonized.
んで該加熱槽内の燃焼ガスを攪拌する請求項１〜４に記
載のスクリュー式炭化炉による炭化方法。5. The carbonization method using a screw-type carbonization furnace according to claim 1, wherein a gas is blown from a side wall into the heating tank to agitate the combustion gas in the heating tank.
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|---|---|---|---|
| JP2000006109A JP4633216B2 (en) | 2000-01-11 | 2000-01-11 | Carbonization method with screw-type carbonization furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000006109A JP4633216B2 (en) | 2000-01-11 | 2000-01-11 | Carbonization method with screw-type carbonization furnace |
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| JP2001192669A true JP2001192669A (en) | 2001-07-17 |
| JP4633216B2 JP4633216B2 (en) | 2011-02-16 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004092303A1 (en) * | 2003-04-14 | 2004-10-28 | Tomoe Engineering Co.,Ltd. | Screw carbonizing oven |
| KR100710014B1 (en) * | 2005-08-23 | 2007-04-20 | 도모에고교 가부시키가이샤 | Screw carbonizing oven |
| JP2009138088A (en) * | 2007-12-06 | 2009-06-25 | Nippon Sharyo Seizo Kaisha Ltd | Multistage screw carbonization furnace |
| JP2009138089A (en) * | 2007-12-06 | 2009-06-25 | Nippon Sharyo Seizo Kaisha Ltd | Multistage screw carbonization device |
| CN103923674A (en) * | 2014-05-05 | 2014-07-16 | 中国科学院地球化学研究所 | Biomass carbonizing equipment |
| CN107098560A (en) * | 2017-06-19 | 2017-08-29 | 重庆航天机电设计院 | Sludge, greasy dirt are combined pyrolysis system |
| US10618088B2 (en) | 2014-12-24 | 2020-04-14 | Takahashi Seisakusho Inc. | Pyrolytic furnace, water gas generation system, and combustion gas supply method for water gas generation system |
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| JPH0967580A (en) * | 1995-09-01 | 1997-03-11 | Seisei Kogyo Kk | Method for drying and carbonizing water-containing organic waste and apparatus therefor |
| JPH1147717A (en) * | 1997-08-05 | 1999-02-23 | Norio Miyakoshi | Continuous carbonization apparatus of organic raw material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004092303A1 (en) * | 2003-04-14 | 2004-10-28 | Tomoe Engineering Co.,Ltd. | Screw carbonizing oven |
| KR100710014B1 (en) * | 2005-08-23 | 2007-04-20 | 도모에고교 가부시키가이샤 | Screw carbonizing oven |
| JP2009138088A (en) * | 2007-12-06 | 2009-06-25 | Nippon Sharyo Seizo Kaisha Ltd | Multistage screw carbonization furnace |
| JP2009138089A (en) * | 2007-12-06 | 2009-06-25 | Nippon Sharyo Seizo Kaisha Ltd | Multistage screw carbonization device |
| CN103923674A (en) * | 2014-05-05 | 2014-07-16 | 中国科学院地球化学研究所 | Biomass carbonizing equipment |
| US10618088B2 (en) | 2014-12-24 | 2020-04-14 | Takahashi Seisakusho Inc. | Pyrolytic furnace, water gas generation system, and combustion gas supply method for water gas generation system |
| CN107098560A (en) * | 2017-06-19 | 2017-08-29 | 重庆航天机电设计院 | Sludge, greasy dirt are combined pyrolysis system |
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|---|---|
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