JP2002130638A - Thermal decomposition processing equipment and operation method - Google Patents
Thermal decomposition processing equipment and operation methodInfo
- Publication number
- JP2002130638A JP2002130638A JP2000318934A JP2000318934A JP2002130638A JP 2002130638 A JP2002130638 A JP 2002130638A JP 2000318934 A JP2000318934 A JP 2000318934A JP 2000318934 A JP2000318934 A JP 2000318934A JP 2002130638 A JP2002130638 A JP 2002130638A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- cracked gas
- thermal decomposition
- cracked
- burning
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は廃棄物等の被処理物
を間接加熱処理して熱分解し、減容化（乾燥、炭化、灰
化等により）する熱分解処理施設とその運転方法に関
し、特に、ガス導管内壁に付着している付着物（粉塵、
分解物など）を除去し、内部を清掃する技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pyrolysis facility for indirectly heating and pyrolyzing an object to be treated, such as waste, to reduce its volume (by drying, carbonizing, ashing, etc.) and a method of operating the same. In particular, deposits (dust,
Decomposed products) and cleaning the inside.
【０００２】[0002]
【従来の技術】可燃性成分を含有する各種被処理物（例
えば、廃棄物、各種乾燥処理物、灰化物など）は種々な
方法で加熱処理されている。例えば、加熱容器に被処理
物を投入し、外部からの加熱による乾留（蒸し焼き）処
理で熱分解し、分解ガスと炭化物に分離して炭化物を得
てこれを資源として利用することは一般に行われてい
る。2. Description of the Related Art Various objects to be treated containing combustible components (eg, wastes, various kinds of dried products, incinerated materials, etc.) are subjected to heat treatment by various methods. For example, it is common practice to put an object to be treated into a heating vessel, pyrolyze it by dry distillation (steaming) by heating from the outside, separate it into cracked gas and carbide, obtain a carbide, and use this as a resource. ing.
【０００３】この場合の処理物としては、含有する可燃
性成分の量は大小さまざまであるが、各種廃棄物（一般
廃棄物、産業廃棄物など）、汚泥、焼却灰、飛灰、汚染
土壌、建築廃材、各種シュレッダーダスト、金属スクラ
ップ、有機性物質など各種のものがある。[0003] In this case, the amount of combustible components contained in the treated material varies in size, but various types of waste (general waste, industrial waste, etc.), sludge, incinerated ash, fly ash, contaminated soil, There are various types of construction waste, various types of shredder dust, metal scrap, and organic substances.
【０００４】また、回転キルン内に被処理物を投入し、
回転キルン内の被処理物を間接加熱により所定の温度条
件で処理するものも知られている（例えば特開平１１−
３４４２１３号）。また、バッチ式のものも知られてい
る（特開平６−２６９７６０）。[0004] An object to be processed is put into a rotary kiln,
There is also known an apparatus in which an object to be processed in a rotary kiln is processed under predetermined temperature conditions by indirect heating (for example, Japanese Patent Application Laid-Open No.
344213). Also, a batch type is known (Japanese Patent Application Laid-Open No. 6-269760).
【０００５】一方、発明者らは、有機性物質（塩素など
のハロゲン物質）である有機塩素化合物（塩化水素）が
従来の「排出の抑制」でなく、「発生の抑制」を行うこ
とで、塩化水素などの有害物質の発生を抑制し、排ガス
の無害化、残渣の無害化、塩素による処理装置の損傷の
低減化を行うことを提案している。（例えば、特開平９
−１５５３２６号、特開平１０−４３７１３号、特開平
１０−２３５１８６号、特開平１０−２３５１８７号な
ど）。On the other hand, the present inventors have proposed that the organic chlorine compound (hydrogen chloride), which is an organic substance (halogen such as chlorine), performs "suppression of emission" instead of the conventional "suppression of emission". It has been proposed to suppress the generation of harmful substances such as hydrogen chloride, make the exhaust gas harmless, make the residue harmless, and reduce the damage to the treatment equipment due to chlorine. (See, for example,
155326, JP-A-10-43713, JP-A-10-235186, JP-A-10-235187, etc.).
【０００６】このように被処理物を燃焼処理するのでは
なく、乾留処理する場合には、加熱処理することによっ
てタール分等の可燃成分を含んだ分解ガスが発生し、そ
の処理も必要となる。In the case where the object to be treated is not subjected to the burning treatment but to the dry distillation treatment, the heating treatment generates a decomposition gas containing a combustible component such as a tar component, and the treatment is also required. .
【０００７】即ち、廃棄物等の被処理物を間接加熱処理
して減容化（乾燥、炭化、灰化等）する熱分解処理施設
にあっては、分解発生した分解ガス中の昇華物質が冷却
により針状結晶として付着固化し、更には未燃タール
分、灰分、微細固形分等がガス導管の内壁などに付着固
化してガス導管内を閉塞、局部燃焼するなどの問題を引
き起こす恐れがある。That is, in a thermal decomposition treatment facility in which an object to be treated such as waste is subjected to indirect heating treatment to reduce the volume (drying, carbonization, incineration, etc.), sublimation substances in the decomposition gas generated by decomposition are generated. There is a risk that solidification will occur as needle-like crystals upon cooling, and unburned tar, ash, and fine solids will adhere to the inner walls of the gas conduit and solidify, causing problems such as blockage of the gas conduit and local combustion. is there.
【０００８】従来、これらの問題を解決するために、ガ
ス導管に清掃装置を設けて、付着・堆積するダストを除
去したり（特開２０００−１３６３８７）、または、ガ
ス導管を所定の温度で保温することで付着しないように
すること（特開平１０−２０５７２６）が提案されてい
る。Conventionally, in order to solve these problems, a cleaning device is provided in a gas conduit to remove dust adhering and accumulating (JP-A-2000-136387), or to keep a gas conduit at a predetermined temperature. It has been proposed to prevent the adherence by performing the process (JP-A-10-205726).
【０００９】[0009]
【発明が解決しようとする課題】上記のガス導管に清掃
装置を設けて機械的手段によって除去することは、付着
物除去の効果は期待できるものの、流路の障害物とな
り、ガス流路の抵抗となるばかりか、その手段自体に付
着することになる。The provision of a cleaning device in the above-described gas conduit and removal by mechanical means can be expected to remove deposits, but it becomes an obstacle to the flow path, and the resistance of the gas flow path is reduced. In addition, it will adhere to the means itself.
【００１０】また、ガス導管を所定の温度で保温する方
法は、保温により付着防止効果は期待できるものの、問
題は運転停止時における冷却過程で付着・固化する恐れ
があり、この点で課題が残る。In the method of keeping the gas pipe at a predetermined temperature, the effect of preventing adhesion can be expected by keeping the temperature, but the problem is that the gas may adhere and solidify in the cooling process when the operation is stopped, and the problem remains in this respect. .
【００１１】本発明は、このような課題に鑑みなされた
もので、既設の排気ブロワを利用して簡単に清掃できる
技術を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a technique which can be easily cleaned using an existing exhaust blower.
【００１２】[0012]
【課題を解決するための手段】上記の課題を解決すべく
種々検討した結果、排気ブロワを利用し、運転開始時に
高速空気を導入して通風することで付着物を除去できる
ことを見出した。As a result of various investigations to solve the above-mentioned problems, it has been found that deposits can be removed by using an exhaust blower and introducing high-speed air at the start of operation to allow ventilation.
【００１３】また、付着しても成長固化しないように、
特に、分解ガス導管を被処理物から発生した分解ガス温
度以上の温度で保温することを併用すれば、付着物の除
去に更に効果があることが判った。In order not to grow and solidify even if adhered,
In particular, it has been found that the combined use of keeping the decomposition gas conduit at a temperature equal to or higher than the temperature of the decomposition gas generated from the object to be treated is more effective in removing the adhered substances.
【００１４】本発明はこれらの知見に基づいてなされた
ものである。即ち、上記の課題を解決するための加熱処
理施設は、被処理物を搬送する搬送手段と、被処理物を
外部間接加熱により減容化する熱分解処理手段と、発生
した残渣を回収する残渣処理手段と、発生した分解ガス
を燃焼する分解ガス燃焼手段と、熱分解処理手段で発生
した分解ガスを分解ガス燃焼手段に導く分解ガス導管手
段と、分解ガス燃焼手段で燃焼した排ガスを排気する排
気ブロワ手段と、前記熱分解処理手段における被処理物
の流路および／又は分解ガス導管手段に開閉扉を有する
付着物除去手段を備えたことを特徴とする。The present invention has been made based on these findings. That is, a heat treatment facility for solving the above-mentioned problems includes a conveyance means for conveying the object to be processed, a thermal decomposition treatment means for reducing the volume of the object to be processed by external indirect heating, and a residue for collecting generated residues. Processing means, cracked gas burning means for burning the generated cracked gas, cracked gas conduit means for guiding the cracked gas generated by the thermal cracking means to the cracked gas burning means, and exhaust gas burned by the cracked gas burning means is exhausted. An exhaust blower means, and a deposit removing means having an opening / closing door in a flow path of an object to be processed in the thermal decomposition processing means and / or a decomposition gas conduit means are provided.
【００１５】上記の付着物除去手段は、熱分解処理手段
における加熱処理炉の被処理物の投入側および／又は排
出側に設けることが望ましい。It is desirable that the above-mentioned attached matter removing means be provided on the side of the thermal decomposition treatment means on the side of the heating furnace where the object to be treated is charged and / or discharged.
【００１６】また、上記の分解ガス導管手段は、分解ガ
ス導管と該分解ガス導管を囲繞する保温管とから成り、
保温管内に熱分解処理手段で発生した分解ガスの温度以
上の熱ガスを導入するようにする。The cracked gas conduit means comprises a cracked gas conduit and a heat retaining tube surrounding the cracked gas conduit.
A hot gas having a temperature equal to or higher than the temperature of the decomposition gas generated by the thermal decomposition processing means is introduced into the heat retaining pipe.
【００１７】被処理物から発生した分解ガスの温度は、
被処理物の資質によって異なるが、例えば、３５０℃〜
４００℃の場合、それ以上の温度とすることが望まし
い。The temperature of the decomposition gas generated from the object is
Depending on the quality of the material to be treated,
In the case of 400 ° C., it is desirable to set the temperature higher than that.
【００１８】更に、保温管内に導入する熱ガスは、分解
ガス燃焼手段から排出される排ガスは８５０℃程度の高
温であることから、その一部を分岐し、下温して使用す
れば、排ガスの有効利用が図れる。Further, since the hot gas introduced into the heat retaining pipe has a high temperature of about 850 ° C. as the exhaust gas discharged from the decomposed gas combustion means, if a part of the hot gas is branched and used at a lower temperature, the exhaust gas can be exhausted. Can be used effectively.
【００１９】上記の熱分解処理施設の運転方法は、前記
の排気ブロワ手段を起動して熱分解処理手段と排気ブロ
ワ手段との間におけるガスの流路内を一定時間吸引減圧
し、所定減圧後、付着物除去手段の開閉扉を開いて少な
くとも分解ガス導管手段内に空気を急激に導入すること
で、少なくとも分解ガス導管内の付着物を除去するよう
にする。The method of operating the thermal decomposition treatment facility is characterized in that the exhaust blower is started to suck and decompress the gas flow path between the pyrolysis treatment and the exhaust blower for a predetermined time. By opening the opening / closing door of the adhering substance removing means and rapidly introducing air into at least the decomposing gas conduit means, at least the adhering substances in the decomposing gas conduit are removed.
【００２０】この付着物除去手段の開閉扉の開く時期
は、加熱処理の運転開始時（運転開始毎）に行うことが
望ましい。It is desirable that the opening of the opening / closing door of the attached matter removing means be performed at the start of the heat treatment operation (every time the operation is started).
【００２１】[0021]
【発明の実施の形態】以下、本発明の実施の形態を図面
によって説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００２２】図１は本発明の熱分解処理施設の概念図を
示す。同図において１は被処理物を破砕する破砕手段、
２は破砕した被処理物から釘などの鉄系金属を取り除く
金属除去手段で、例えば、磁選機からなる。FIG. 1 shows a conceptual diagram of a thermal decomposition treatment facility of the present invention. In the figure, reference numeral 1 denotes a crushing means for crushing the object,
Reference numeral 2 denotes a metal removing means for removing iron-based metals such as nails from the crushed workpiece, and includes, for example, a magnetic separator.
【００２３】３は除去された金属を収容する容器、４は
第１の閉鎖搬送手段で、該閉鎖搬送手段４はパイプコン
ベアとも称され、図２に示すように、閉鎖された無端管
路５と、該無端管路５内に設けられ、無端管路５内を循
環移動する可撓性搬送手段６とによって構成されてい
る。Reference numeral 3 denotes a container for accommodating the removed metal, 4 denotes first closed conveying means, which is also called a pipe conveyor, and as shown in FIG. And flexible transfer means 6 provided in the endless conduit 5 and circulating in the endless conduit 5.
【００２４】無端管路５は、往管路Ｇを形成する下部水
平管部５ａ、起立（垂直又は傾斜）管部５ｂ、上部水平
管部５ｃ及び復管路Ｒを形成する上部水平管部５ｄ、起
立管部５ｅ、下部水平管部５ｆからなり、往管路Ｇと復
管路Ｒは曲線管５ｇ，５ｈとによってエンドレスに連結
されている。The endless pipe line 5 includes a lower horizontal pipe section 5a forming a forward pipe G, an upright (vertical or inclined) pipe section 5b, an upper horizontal pipe section 5c, and an upper horizontal pipe section 5d forming a return pipe R. , An upright pipe section 5e and a lower horizontal pipe section 5f, and the forward pipe G and the return pipe R are connected endlessly by curved pipes 5g and 5h.
【００２５】可撓性搬送手段６は、図２に示すように、
無端管路５内に無端の可撓性搬送手段として設けられ、
被処理物受け体（以下、ブレードと称す）６ａと、多間
接体、チェーン又はロープ等のような可撓性の牽引体
（以下、チェーンと略称する）６ｂと、該チェーン６ｂ
を牽引駆動する駆動源７によって構成され、牽引体を一
方向に循環移動させる。この駆動源７は、モータ７ａ、
牽引体と係合して駆動するスプロケット７ｂからなり、
スプロケット７ｂは、曲線管５ｈ内で可撓性搬送手段６
のチェーン６ｂと噛合し、可撓性搬送手段６を駆動す
る。この噛合部はカバー７ｃで密閉されている。As shown in FIG. 2, the flexible conveying means 6
Provided as an endless flexible conveying means in the endless conduit 5,
An object receiver (hereinafter, referred to as a blade) 6a, a flexible traction member (hereinafter, abbreviated as a chain) 6b such as a multi-joint, a chain or a rope, and the chain 6b
, And circulates the towing body in one direction. The drive source 7 includes a motor 7a,
It consists of a sprocket 7b which is driven by engaging with the towing body,
The sprocket 7b is connected to the flexible conveying means 6 in the curved tube 5h.
And drives the flexible conveying means 6. This meshing portion is closed by a cover 7c.
【００２６】８は往管路の下部水平管５ａに設けられた
被処理物の投入口、９は復路管Ｒの上部水平管部５ｄに
設けられた被処理物の排出口を示している。Reference numeral 8 denotes an inlet for the workpiece provided in the lower horizontal pipe 5a of the forward pipe, and reference numeral 9 denotes an outlet for the workpiece provided in the upper horizontal pipe 5d of the return pipe R.
【００２７】１０はホッパで、第１の閉鎖搬送手段４か
らの被処理物を貯留し、第２の閉鎖搬送手段１１を介し
て第１の定量供給手段１２に供給する。第２の閉鎖搬送
手段１１は第１の閉鎖搬送手段４と構成は同じである。
この第２の閉鎖搬送手段１１の適宜の箇所、例えば、下
部水平管５ａに脱塩素剤としての処理剤１４を注入す
る。なお、閉鎖搬送手段４及び１１の供給口と排出口に
接続される機器（金属除去手段２、ホッパ１０、定量供
給手段１２）との接続は密閉接続とする。Reference numeral 10 denotes a hopper which stores the object to be processed from the first closed conveying means 4 and supplies it to the first fixed supply means 12 via the second closed conveying means 11. The configuration of the second closed transport means 11 is the same as that of the first closed transport means 4.
A treatment agent 14 as a dechlorinating agent is injected into an appropriate portion of the second closed conveyance means 11, for example, into the lower horizontal pipe 5a. The connection between the supply ports and the discharge ports of the closed transport means 4 and 11 (the metal removing means 2, the hopper 10, and the fixed quantity supply means 12) is a hermetic connection.
【００２８】また定量供給手段１２も、上下に開閉バル
ブを有し、両方の開閉バルブが同時に開くことのないよ
うに操作し、外気の流通を防止している。The fixed-quantity supply means 12 also has open / close valves at the top and bottom, and is operated so that both open / close valves are not opened at the same time, thereby preventing the flow of outside air.
【００２９】１５は被処理物を乾燥・脱塩素処理を行う
加熱処理炉（以下、脱塩炉と略称する）で、該脱塩炉１
５は、被処理物と処理剤とを外部加熱手段で加熱し、加
熱により被処理物から分解析出する分解ガスと処理剤と
を反応させて脱塩素処理をするもので、回転キルン形に
例をとれば、回転円筒体１５ａの外周にガスダクト１５
ｂを形成して熱ガスを導入して回転円筒体１５ａ内の被
処理物を加熱する。この回転円筒体１５ａは、図示を省
略してあるが、支持ローラで回転自在に支持されるとと
もに、回転駆動手段で回転駆動され、且つ内部に送り羽
根を有し、回転円筒体１５ａの回転によって被処理物が
供給口側から排出口側に撹拌しながら移送するようにな
っている。Reference numeral 15 denotes a heat treatment furnace (hereinafter abbreviated as a desalination furnace) for drying and dechlorinating an object to be treated.
5 is a rotary kiln type in which an object to be treated and a treatment agent are heated by an external heating means, and a decomposition gas decomposed and precipitated from the object to be treated by heating is reacted with the treatment agent to perform a dechlorination treatment. For example, a gas duct 15 is provided around the outer periphery of the rotating cylindrical body 15a.
b is formed and a hot gas is introduced to heat the object to be processed in the rotating cylindrical body 15a. Although not shown, the rotary cylinder 15a is rotatably supported by a support roller, is rotationally driven by rotary drive means, has a feed blade inside, and is rotated by the rotation of the rotary cylinder 15a. The object is transferred from the supply port side to the discharge port side while stirring.
【００３０】１６は供給側ダクトで、定量供給手段１２
で定量化された被処理物と処理剤の混合物を回転円筒体
１５ａ内に供給する。１７は誘導加熱手段で、加熱コイ
ルを有し、該加熱コイルは、加熱ジャケット１５ｂの両
端側の回転円筒体１５ａの外周に、該回転円筒体１５ａ
とは非接触に設けられ、回転円筒体１５ａの両端側の温
度の低下を補充的に加熱する。Reference numeral 16 denotes a supply side duct,
The mixture of the object to be treated and the treatment agent quantified by the above is supplied into the rotating cylindrical body 15a. Reference numeral 17 denotes an induction heating means having a heating coil. The heating coil is provided on the outer periphery of the rotating cylindrical body 15a at both ends of the heating jacket 15b.
Is provided in a non-contact manner, and replenishes heating of a decrease in temperature at both ends of the rotating cylindrical body 15a.
【００３１】１８は脱塩炉１５で脱塩素処理した被処理
物を炭化処理する加熱処理炉（以下、炭化炉と称す）
で、前記の脱塩炉１５の加熱処理炉と同じ構成をなして
いる。即ち、回転円筒体１８ａと、該回転円筒体１８ａ
の外周に設けられた外部加熱手段としてのガスダクト１
８ｂから成る。１９は、回転円筒体１８ａの外周でガス
ダクト１８ｂの両側に設けられた誘導加熱手段を示す。Reference numeral 18 denotes a heat treatment furnace (hereinafter, referred to as a carbonization furnace) for carbonizing an object to be processed which has been dechlorinated in the desalination furnace 15.
Thus, it has the same configuration as the heat treatment furnace of the desalination furnace 15 described above. That is, the rotating cylinder 18a and the rotating cylinder 18a
Gas duct 1 as an external heating means provided on the outer periphery of
8b. Reference numeral 19 denotes induction heating means provided on the outer periphery of the rotary cylindrical body 18a on both sides of the gas duct 18b.
【００３２】２０は被処理物の導出入ダクトで、脱塩炉
１５で加熱処理した被処理物を炭化炉１８に導入する。
２１は排出側ダクトで、炭化炉１８で炭化処理した炭化
物を定量供給手段２２に導入する。Numeral 20 denotes a duct for introducing and discharging the object to be treated, and the object to be treated which has been heated in the desalination furnace 15 is introduced into the carbonization furnace 18.
Reference numeral 21 denotes a discharge-side duct, which introduces the carbide that has been carbonized in the carbonization furnace 18 into the quantitative supply unit 22.
【００３３】なお、回転円筒体１５ａ及び１８ａとガス
ダクト１５ｂ及び１８ｂとの各回転接触部にはメカニカ
ルシールＣが施され、熱ガスの漏れを防止している。同
様に回転円筒体１５ａと供給側ダクト１６、導出入ダク
ト２０との回転接触部、回転円筒体１８ａと導出入ダク
ト２０、排出側ダクト２１との回転接触部にもメカニカ
ルシールＣが施され、回転円筒体内からのガス漏れを防
止している。Incidentally, a mechanical seal C is applied to each rotating contact portion between the rotating cylindrical bodies 15a and 18a and the gas ducts 15b and 18b to prevent leakage of hot gas. Similarly, a mechanical seal C is also applied to a rotating contact portion between the rotating cylindrical body 15a and the supply-side duct 16 and the lead-in / duct duct 20, and a rotating contact portion between the rotating cylindrical body 18a and the lead-in / out duct 20 and the discharge-side duct 21. Gas leakage from the rotating cylinder is prevented.
【００３４】２３は熱風炉で、ＬＮＧ，ＬＰＧ又は石油
等の燃料をバーナ等で燃焼して熱ガスを発生させ、炭化
炉１８のガスダクト１８ｂ内に供給し、炭化炉１８を加
熱した後、連絡管２４を介して脱塩炉１５のガスダクト
１５ｂ内に導入し、脱塩炉１５を加熱した後、ガス管Ｌ
1を介して熱交換器２６に、またその一部を熱風炉２３
に導入する。２７は上記の熱ガスを循環させる循環ブロ
ワを示す。Reference numeral 23 denotes a hot blast stove, which burns a fuel such as LNG, LPG or petroleum with a burner or the like to generate a hot gas, supplies the hot gas into a gas duct 18b of the coking furnace 18, heats the coking furnace 18, and connects After being introduced into the gas duct 15b of the desalination furnace 15 through the pipe 24 and heating the desalination furnace 15, the gas pipe L
1 to the heat exchanger 26, and a part of the heat exchanger
To be introduced. Reference numeral 27 denotes a circulation blower for circulating the hot gas.
【００３５】２８は第１の閉鎖搬送手段４と同じ構成の
第３の閉鎖搬送手段で、第２の定量供給手段２２で定量
化された炭化物を第３の定量化供給手段２９を介して分
解ガス燃焼炉３０内に導入する。この分解ガス燃焼炉３
０は、ＬＮＧ，ＬＰＧ又は石油等の燃料を燃焼させ、炭
化処理された炭化物の他、脱塩炉１５及び炭化炉１８で
加熱処理中に発生する分解ガス（乾留ガス）も分解ガス
導管Ｌ2，Ｌ3を介して導入して燃焼させる。燃焼後の排
ガスはガス管Ｌ4を介してサイクロン３１で集塵した
後、熱交換器２６に導入して熱を回収し、バグフィルタ
３２で清浄化して、サイレンサ３３を通して排出する。
３４はこれらのガスを吸引して排出する排気ブロワであ
る。Reference numeral 28 denotes a third closed conveying means having the same configuration as the first closed conveying means 4, which decomposes the carbide quantified by the second quantitative supplying means 22 through the third quantifying supplying means 29. It is introduced into the gas combustion furnace 30. This cracked gas combustion furnace 3
No. 0 is a gas obtained by burning a fuel such as LNG, LPG or petroleum and carbonizing, as well as cracking gas (carbonization gas) generated during the heat treatment in the desalination furnace 15 and the carbonization furnace 18 in addition to the cracking gas conduit L 2. , burning is introduced through the L 3. After the exhaust gas after combustion was dust collection in a cyclone 31 via a gas pipe L 4, the heat is recovered and introduced into heat exchanger 26, and cleaned in a bag filter 32 is discharged through the silencer 33.
An exhaust blower 34 sucks and discharges these gases.
【００３６】熱交換器２６は、２つのガス室に分け、一
方は熱風炉２３からの熱ガスと各加熱処理炉を加熱した
後の熱ガスをガス管Ｌ1を介して導入しそのまま排出
し、又、乾留ガス燃焼炉３０から発生する燃焼ガスは、
種々の物質が混入しているので他方のガス室を通してバ
グフィルタ３２で清浄化した後排出する。The heat exchanger 26 is divided into two gas chambers, one a hot gas after heating the hot gas and the respective heat treatment furnace as it is discharged introduced through the gas pipe L 1 from the hot air oven 23 The combustion gas generated from the carbonization gas combustion furnace 30 is
Since various substances are mixed in, the gas is cleaned by the bag filter 32 through the other gas chamber and then discharged.
【００３７】３５は温水利用設備で、ポンプ３６で水を
熱交換器２６内を循環させて温水を得る。Numeral 35 denotes hot water utilization equipment, which circulates water in the heat exchanger 26 by a pump 36 to obtain hot water.
【００３８】なお、金属除去手段２から分解ガス燃焼炉
３０に至る被処理物の通路を形成する各機器の接続は密
閉接続とし、通路全体としても気密性が保持され、低酸
素域を保持するとともに、悪臭は外部に漏れることがな
いように形成してある。The devices forming the passage of the object to be treated from the metal removing means 2 to the cracked gas combustion furnace 30 are connected in a hermetically closed manner so that the entire passage is kept airtight and maintains a low oxygen region. At the same time, the odor is formed so as not to leak outside.
【００３９】被処理物は必ずしも炭化する必要がない場
合は、導出入ダクト２０から定量供給手段（図示省略）
を介して第３の閉鎖搬送手段２８に接続してもよい。When the material to be treated does not necessarily need to be carbonized, a constant-quantity supply means (not shown) is provided from the inlet / outlet duct 20.
May be connected to the third closed transport means 28 via the.
【００４０】３７は灰化物回収手段で、分解ガス燃焼炉
３０で燃焼して生じた灰が所定量になったとき、扉イを
開けて取り出す。Reference numeral 37 denotes ash collection means. When the ash generated by burning in the cracked gas combustion furnace 30 reaches a predetermined amount, the door a is opened and taken out.
【００４１】分解ガス導管Ｌ2及びＬ3は夫々二重管で構
成されている。即ち、Ｘ−Ｘ断面矢視図の図１（Ｂ）に
示すように、分解ガス（乾留ガス）を導通する分解ガス
導管Ｌ2およびＬ3と、その外周に所定のギャップｇをも
って同心円的に配設した保温管Ｐ2およびよりＰ3とな
り、ギャップｇには熱ガスを送通させ分解ガス導管を加
熱保温する。The cracked gas conduits L 2 and L 3 are each constituted by a double pipe. That is, as shown in Figure 1 of the sectional view taken along line X-X arrow view (B), the decomposition gas conduit L 2 and L 3 to conduct decomposition gas (dry distillation gas), concentrically with a predetermined gap g in its outer periphery provided the insulated pipe P 2 and from P 3 becomes, the gap g to heat insulation cracked gas conduit is communicated feed hot gas.
【００４２】導入する熱ガスは、本例では分解ガス燃焼
炉３０からの排ガスをサイクロン３１に送出するガス管
Ｌ4からブロワ３８によって保温管Ｐ2，Ｐ3の一端側
（分解ガス燃焼炉３０側）からギャップｇ内に送り込
み、他端側（導出入ダクト２０側）からガス管Ｌ5を介
して導出し、サイクロン３１に送出する。The hot gas to be introduced, one end (decomposed gas fired furnace 30 of insulated pipe P 2, P 3 by the blower 38 through the gas pipe L 4 for delivering exhaust gas from the decomposition gas fired furnace 30 to the cyclone 31 in this embodiment fed from the side) into the gap g, is derived through the gas pipe L 5 from the other end (derivation duct 20 side), and sends it to the cyclone 31.
【００４３】このとき新鮮空気３９を導入して温度をタ
ール分が固化しない温度、即ち、被処理物から発生した
分解ガスの温度以上の温度で保温するようにする。At this time, fresh air 39 is introduced to maintain the temperature at a temperature at which the tar component does not solidify, that is, at a temperature equal to or higher than the temperature of the decomposition gas generated from the material to be processed.
【００４４】４０，５０，６０および７０は付着物除去
手段で、これら付着物除去手段は、脱塩炉１５の供給側
ダクト１６，炭化炉１８の排出側ダクト２１，導出入ダ
クト２０の上部および下部に夫々設けられている。な
お、導出入ダクト２０に設けた付着物除去手段６０，７
０は、分解ガス導管Ｌ2，Ｌ3内に空気を導入するための
ものであるから、分解ガス導管自体に設けてもよい。Reference numerals 40, 50, 60 and 70 denote deposit removing means. These deposit removing means are provided on the supply side duct 16 of the desalination furnace 15, the discharge side duct 21 of the carbonization furnace 18, the upper part of the lead-in / out duct 20, and the like. Each is provided at the lower part. The adhering matter removing means 60, 7 provided in the lead-in / out duct 20
Since 0 is for introducing air into the cracked gas conduits L 2 and L 3 , it may be provided in the cracked gas conduit itself.
【００４５】図３はこれらの付着物除去手段の一実施例
で、皆同じ構成をしているので、付着物除去手段４０に
ついて説明すると、４１は供給側ダクト１６に設けられ
た開閉口、４２は開閉口４１を囲み供給側ダクト１６の
外側に突設された円筒体座、４３は円筒体座４２の外端
部に設けられたパッキン、４４はパッキン４３に当接し
て開閉口４１を閉塞、開口する開閉扉で、下部は支軸４
５に回動自在に軸支されいる。FIG. 3 shows one embodiment of these adhering substance removing means. Since all of them have the same structure, the adhering substance removing means 40 will be described. Is a cylindrical body seat surrounding the opening / closing opening 41 and protruding outside the supply side duct 16, 43 is a packing provided at the outer end of the cylindrical body sitting 42, and 44 is in contact with the packing 43 to close the opening / closing opening 41. , Opening and closing door, the lower part is a support shaft 4
5 rotatably supported.
【００４６】４６は開閉扉４４を開閉操作する扉操作部
で、シリンダ４６ａ，操作桿４６ｃを取り付けたピスト
ン４６ｂ，操作桿４６ｃに弾装した蓄勢ばね４６ｄ，シ
リンダ４６ａ内の圧力制御用の切換弁４６ｅ，迂回管４
６ｆとからなり、シリンダ４６ａの一端は、固定部材４
６ｇに回動自在に取り付けられ、また操作桿４６ｃの先
端部は、開閉扉４４に回動自在に取り付けられている。Reference numeral 46 denotes a door operating portion for opening and closing the opening / closing door 44. A cylinder 46a, a piston 46b having an operating rod 46c attached thereto, a spring spring 46d elastically mounted on the operating rod 46c, and switching for pressure control in the cylinder 46a. Valve 46e, bypass pipe 4
6f, and one end of the cylinder 46a is
6g, and the tip of the operation rod 46c is rotatably attached to the opening / closing door 44.
【００４７】４７は開閉扉４４のロック部で、電磁石４
７ａと、該電磁石４７ａによって操作されるロックピン
４７ｂとからなり、ロックピン４７ｂは電磁石４７ａの
付勢により上昇し、消勢により下降する。下降したとき
開閉扉４４の上部に設けた係合部４４ａの嵌入孔４４ｂ
および円筒体座４２に設けた係合部４２ａの嵌入孔４２
ｂに嵌入して開閉扉４４をロックする。Reference numeral 47 denotes a lock portion of the opening / closing door 44.
7a and a lock pin 47b operated by the electromagnet 47a. The lock pin 47b rises by the bias of the electromagnet 47a and falls by deenergization. Fitting hole 44b of engaging portion 44a provided on opening / closing door 44 when lowered
And a fitting hole 42 of an engaging portion 42a provided in the cylindrical body seat 42
b and locks the door 44.
【００４８】従って、開閉扉４４を閉じる場合は、切換
弁４６ｅをコンプレッサ側に切り換えて図示省略したコ
ンプレッサより空気をシリンダ４６ａ内に送り込みピス
トン４６ｂを介して操作桿４６ｃによって開閉扉４４を
図の反時計方向に回動操作して閉じる。閉じた状態で電
磁石４７ａを消勢してロックピン４７ｂを下降させて開
閉扉をロックする。Therefore, when the door 44 is closed, the switching valve 46e is switched to the compressor side, air is sent from the compressor (not shown) into the cylinder 46a, and the door 44 is moved by the operation rod 46c via the piston 46b. Rotate clockwise to close. In the closed state, the electromagnet 47a is deenergized and the lock pin 47b is lowered to lock the door.
【００４９】このとき、蓄勢ばね４６ｄは、ピストン４
６ｂの移動により蓄勢されるので蓄勢状態を保持してい
る。開閉扉４４をロックした後には切換弁４６ｅを排気
側に切り換え、シリンダ４６ａ内を大気圧にしておく。At this time, the energy storage spring 46d is
Since the energy is accumulated by the movement of 6b, the accumulated state is maintained. After the door 44 is locked, the switching valve 46e is switched to the exhaust side, and the pressure in the cylinder 46a is kept at the atmospheric pressure.
【００５０】開閉扉４４の開操作は、電磁石４７ａを付
勢してロックピン４７ｂを上昇させ、係合部４４ａとの
係合を外す。ロックが解かれると蓄勢ばね４６ｄの放勢
により、開閉扉４４は急速に時計方向に回動して開く。
このとき、迂回管４６ｆによってピストン４６ｂ内の空
気はシリンダ４６ａの反対側にも放圧され、シリンダ４
６ａの動きを助ける。When the door 44 is opened, the lock pin 47b is raised by urging the electromagnet 47a to disengage the engagement with the engagement portion 44a. When the lock is released, the opening / closing door 44 is quickly rotated clockwise and opened by the release of the urging spring 46d.
At this time, the air in the piston 46b is released to the opposite side of the cylinder 46a by the bypass pipe 46f, and
6a help movement.
【００５１】次に、被処理物の一連の加熱処理方法につ
いて説明する。Next, a series of heat treatment methods for an object to be processed will be described.
【００５２】運転開始より、各機器・装置は駆動される
が、排気ガス系はガスの流路の下流側から順次起動され
る。まず、排気ブロワ３４を起動して各炉から排気ブロ
ワに至るガスの流路における圧力、特に、各炉内圧力、
分解ガス燃焼炉内の圧力などを監視し、所定の減圧状態
（例えば、−４０００〜１３３００Ｐａ）に到達したと
き、付着物除去手段６０および／又は７０の開閉扉４４
を開ける。この開閉扉の開放により大量の空気が高速で
導入され、分解ガス導管Ｌ2およびＬ3−分解ガス燃焼炉
３０−ガス管Ｌ4−サイクロン３１−熱交換器２６−バ
グフィルタ３２−排気ブロワ３４−サイレンサ３３を通
して排気される。この空気流によって分解ガス導管
Ｌ2，Ｌ3内に付着している付着物は除去され、導入空気
とともに通風してサイクロン３１又はバグフィルタ３２
で回収される。この動作を３〜５回繰り返す。From the start of operation, each apparatus and device is driven, but the exhaust gas system is sequentially started from the downstream side of the gas flow path. First, the exhaust blower 34 is activated, and the pressure in the gas flow path from each furnace to the exhaust blower, in particular, the pressure inside each furnace,
The pressure and the like in the cracked gas combustion furnace are monitored, and when a predetermined reduced pressure state (for example, −4000 to 13300 Pa) is reached, the opening / closing door 44 of the adhering matter removing means 60 and / or 70.
Open. Large amount of air by the opening of the door is introduced at a high speed, it cracked gas conduit L 2 and L 3 - decomposition gas fired furnace 30- gas pipe L 4 - cyclone 31- heat exchanger 26- bag filter 32 the exhaust blower 34 -Exhausted through the silencer 33; Deposits adhering to the decomposed gas conduits L 2 and L 3 are removed by this air flow, and are passed through with the introduced air to allow the cyclone 31 or the bag filter 32 to pass through.
Collected at. This operation is repeated three to five times.
【００５３】また、付着物除去手段４０および５０の開
閉扉を開ければ、加熱処理炉１５および１８の炉壁に付
着している付着物を除去することができる。Further, if the opening / closing doors of the adhering matter removing means 40 and 50 are opened, the adhering matter adhering to the furnace walls of the heat treatment furnaces 15 and 18 can be removed.
【００５４】付着物除去手段の開閉扉４４を所定時間
（例えば、５分程度）開いた後、開閉扉４４を閉じて開
閉口４１を閉鎖し、運転を継続する。この作業は、運転
開始毎に行うことが望ましい。勿論、被処理物の資質に
より運転頻度は適宜選定する。After the opening / closing door 44 of the attached matter removing means is opened for a predetermined time (for example, about 5 minutes), the opening / closing door 44 is closed to close the opening / closing port 41, and the operation is continued. This work is desirably performed every time the operation is started. Of course, the operation frequency is appropriately selected depending on the quality of the material to be treated.
【００５５】次に、熱風炉２３でＬＮＧ等の燃料を燃焼
して熱ガスを発生させるとともに循環ブロワ２７を運転
し、熱ガスを炭化炉１８のガスダクト１８ｂ及び脱塩炉
１５のガスダクト１５ｂに導入し、各回転円筒体１８ａ
及び１５ａを加熱する。Next, the fuel such as LNG is burned in the hot blast stove 23 to generate hot gas, and the circulation blower 27 is operated to introduce the hot gas into the gas duct 18 b of the carbonization furnace 18 and the gas duct 15 b of the desalination furnace 15. And each rotating cylinder 18a
And 15a are heated.
【００５６】脱塩素処理のための加熱温度は、２５０℃
〜３５０℃、炭化するための加熱温度は４５０℃〜６５
０℃とすると、まず、炭化炉１８を４５０℃〜６５０℃
に加熱し、加熱後の熱ガスを連絡管２４から脱塩炉１５
に導入する。このとき、連絡管２４に温度調節用空気２
５を導入して脱塩炉１５の温度を２５０℃〜３５０℃に
調節する。The heating temperature for the dechlorination treatment is 250 ° C.
~ 350 ° C, heating temperature for carbonization is 450 ° C ~ 65
When the temperature is set to 0 ° C., first, the carbonizing furnace 18 is set at 450 ° C. to 650 ° C.
And the heated hot gas is passed from the connecting pipe 24 to the desalination furnace 15.
To be introduced. At this time, the air for temperature control 2
5, the temperature of the desalination furnace 15 is adjusted to 250 ° C. to 350 ° C.
【００５７】次に、破砕手段１に被処理物を投入し、所
定の大きさ（３０ｍｍ以下）に破砕する。そして、金属
除去手段２で釘などの鉄系金属を除外し、第１の閉鎖搬
送手段４でホッパ１０に搬送し一時貯留する。Next, the object to be treated is put into the crushing means 1 and crushed to a predetermined size (30 mm or less). Then, iron-based metals such as nails are removed by the metal removing means 2, and the metal is conveyed to the hopper 10 by the first closed conveying means 4 and temporarily stored.
【００５８】次に、ホッパ１０の下部から第２の閉鎖搬
送手段１１を介して第１の定量供給手段１２に導入し、
ここで計量して所定の量（投入量の一定量化）を脱塩炉
１５に供給する。このとき、第２の閉鎖搬送手段１１内
に脱塩素用の処理剤１４を注入する。この第２の閉鎖搬
送手段１１で被処理物、被処理物と処理剤は、搬送過程
において撹拌と混合が行われる。Next, the hopper 10 is introduced from the lower part of the hopper 10 to the first fixed-quantity supply means 12 through the second closed conveyance means 11,
Here, a predetermined amount (a quantification of the input amount) is supplied to the desalination furnace 15 by weighing. At this time, the treatment agent 14 for dechlorination is injected into the second closed conveyance means 11. The object to be processed, the object to be processed and the processing agent are agitated and mixed by the second closed transport means 11 in the transport process.
【００５９】この脱塩炉１５での加熱処理は、被処理物
の含有する有害物質（塩化水素など）が析出する温度と
時間によって行う。この温度と時間は、事前に調査し
て、被処理物の性質を把握し、この調査結果を十分にカ
バーできる温度（２００℃〜３５０℃、約３０分）と時
間で処理する。The heat treatment in the desalination furnace 15 is performed depending on the temperature and time at which harmful substances (such as hydrogen chloride) contained in the material to be treated precipitate. The temperature and time are investigated in advance to grasp the properties of the object to be treated, and the treatment is performed at a temperature (200 ° C. to 350 ° C., about 30 minutes) and time that can sufficiently cover the result of the investigation.
【００６０】また、この脱塩炉１５および炭化炉１８で
の加熱処理は、燃焼、焼却ではなく、低酸素雰囲気中で
の蒸し焼き、熱分解での処理とし、熱分解により析出し
たハロゲン系の物質（ＨＣｌガス等）の有害物質と処理
剤とを接触反応させる。The heat treatment in the desalination furnace 15 and the carbonization furnace 18 is not a combustion and incineration but a steaming in a low-oxygen atmosphere and a thermal decomposition, and a halogen-based substance deposited by the thermal decomposition. A harmful substance (HCl gas or the like) is brought into contact with the treating agent.
【００６１】被処理物と混合又は添加する処理剤は、少
なくともＨＣｌ（塩化水素）と接触反応して無害な塩化
物を生成するアルカリ物質を使用する。例えば、本願の
出願人が先に出願した特開平９−１５５３２６号、特開
平１０−４３７１３号、特開平１０−２３５１８６号、
特開平１０−２３５１８７号、特開平１１−９９３７
号、特開平１１−１０１４１７号に示すように、アルカ
リ土類金属、アルカリ土類金属化合物、アルカリ金属、
アルカリ金属化合物で、具体的には、カルシウム、石
灰、消石灰、炭酸カルシウム、ドロマイト、珪酸塩（珪
酸カルシウムなど）、炭酸水素ナトリウム、炭酸ナトリ
ウム、セスキ炭酸ナトリウム、天然ソーダ、水酸化ナト
リウム、水酸化カリウム、炭酸水素カリウム、炭酸カリ
ウムの中から１種類選択するか、数種類混合して使用す
る。使用量としては、被処理物に対して５〜３０重量％
を混合又は添加する。As the treating agent to be mixed or added with the article to be treated, use is made of an alkaline substance which forms a harmless chloride by reacting with at least HCl (hydrogen chloride). For example, JP-A-9-155326, JP-A-10-43713, JP-A-10-235186, which the applicant of the present application previously filed,
JP-A-10-235187, JP-A-11-9937
As shown in JP-A-11-101417, alkaline earth metals, alkaline earth metal compounds, alkali metals,
Alkali metal compound, specifically, calcium, lime, slaked lime, calcium carbonate, dolomite, silicate (such as calcium silicate), sodium hydrogen carbonate, sodium carbonate, sodium sesquicarbonate, natural soda, sodium hydroxide, potassium hydroxide , Potassium bicarbonate or potassium carbonate, or a mixture of several types. The amount used is 5 to 30% by weight based on the object to be treated.
Is mixed or added.
【００６２】または、本願の出顧人が先に出願した特願
平１０−１９３８４４号に示す多孔質化したアルカリ物
質（多孔質脱塩素剤）を使用する。多孔質化は、気化成
分（Ｏ，Ｈ，ＣＯ，ＣＯ2等）を含有するアルカリ物質
を加熱して含有する気化成分をＨ2Ｏ，ＣＯ2として蒸発
分離し、この分離飛散によりアルカリ物質体に貫通孔、
凹部（穴）を形成することで多孔質化したものである。
この多孔質化による表面積が増加し、発生ガスとの接触
面積が増大する。この多孔質脱塩素剤を被処理物に対し
て５〜３０重量％を混合又は添加して使用する。Alternatively, a porous alkali substance (porous dechlorinating agent) disclosed in Japanese Patent Application No. 10-193844 previously filed by the present applicant is used. Porousization involves heating an alkaline substance containing vaporized components (O, H, CO, CO 2, etc.) and evaporating and separating the contained vaporized components as H 2 O, CO 2. Through holes,
It is made porous by forming recesses (holes).
The surface area due to the porosity increases, and the contact area with the generated gas increases. This porous dechlorinating agent is used by mixing or adding 5 to 30% by weight to the material to be treated.
【００６３】上記の例えば炭酸水素ナトリウム（ＮａＨ
ＣＯ3）を使用した場合、無害化処理炉５内においてＨ
Ｃｌ成分の分解ガスが発生するが、直ちに炭酸水素ナト
リウムと反応して（ＮａＨＣＯ3）＋（ＨＣｌ）→（Ｎ
ａＣｌ）＋（Ｈ2Ｏ）＋（ＣＯ 2）となり、無害な塩化ナ
トリウム（ＮａＣｌ）を生成し、分解ガスから有害なＨ
Ｃｌがなくなる。このことによって、分解ガス中のＨＣ
ｌ成分の無害化と加熱処理後の被処理物の無害化が同時
に行われる。As described above, for example, sodium hydrogen carbonate (NaH
COThree) Is used in the detoxification furnace 5
Decomposition gas of Cl component is generated.
Reacts with lithium (NaHCOThree) + (HCl) → (N
aCl) + (HTwoO) + (CO Two) And harmless sodium chloride
Produces thorium (NaCl) and generates harmful H
Cl disappears. As a result, the HC in the cracked gas
Simultaneous detoxification of l-component and detoxification of object after heat treatment
Done in
【００６４】この無害化された被処理物は、導出入ダク
ト２０を介して炭化炉１８の回転円筒体１８ａに送り込
まれ、ここで被処理物が炭化する温度（紙類は３５０℃
程度で炭化が始まる。）３５０℃〜７００℃、好ましく
は６００℃で炭化処理される。The detoxified object is sent into the rotating cylindrical body 18a of the carbonization furnace 18 through the lead-in / out duct 20, where it is carbonized (at 350 ° C. for papers).
The carbonization starts at a degree. ) Carbonization treatment at 350 ° C to 700 ° C, preferably 600 ° C.
【００６５】炭化した被処理物（炭化物）は、第２の定
量供給手段２２、第３の閉鎖搬送手段２８及び第３の定
量供給手段２９を介して分解ガス燃焼炉３０に導入され
燃焼される。一方、脱塩炉１５及び炭化炉１８内で発生
した分解ガス（乾留ガス）もこの分解ガス燃焼炉３０内
に導入され、共に燃焼処理（８００℃、２秒以上）され
炭化物は灰化される。この燃焼処理によって発生した排
ガスは、サイクロン３１、熱交換器２６、バグフィルタ
３２、サイレンサ３３を介して大気中に排出される。The carbonized material to be treated (carbide) is introduced into the cracked gas combustion furnace 30 via the second constant-quantity supply means 22, the third closed conveying means 28 and the third constant-quantity supply means 29, and is burned. . On the other hand, cracked gas (dry distillation gas) generated in the desalination furnace 15 and the carbonization furnace 18 is also introduced into the cracked gas combustion furnace 30, and both are burned (at 800 ° C. for 2 seconds or more) to incinerate the carbide. . The exhaust gas generated by this combustion process is discharged into the atmosphere via the cyclone 31, the heat exchanger 26, the bag filter 32, and the silencer 33.
【００６６】また、分解ガス導管Ｌ2，Ｌ3は、保温管Ｐ
2，Ｐ3で夫々囲繞され、保温管の内部に少なくともター
ル分が固化しない温度を維持するための熱ガスが送風さ
れているので、タール分等が分解ガス導管内に付着固化
する現象は解消される。Further, the decomposition gas conduits L 2 and L 3 are connected to the heat insulating pipe P
2, are respectively surrounded by P 3, since the hot gas to maintain the temperature at least tar is not solidified is blown into the interior of the insulated pipe, the phenomenon of tar or the like from adhering solidifies into cracked gas conduit eliminated Is done.
【００６７】[0067]
【発明の効果】本発明は次の効果を奏する。 （１）運転開始初期の減圧環境を利用して、密閉路内の
一部を開口することで大量の空気を高速で通風できるの
で、管路、炉壁に付着している各種付着物は除去回収で
きる。 （２）よって、付着物の成長に起因する閉塞、燃焼とい
った問題は解消され、安定した熱分解処理を行うことが
できる。The present invention has the following effects. (1) A large amount of air can be ventilated at high speed by opening a part of the closed passage using the decompression environment at the beginning of operation, so that various deposits adhering to the pipeline and the furnace wall are removed. Can be collected. (2) Therefore, problems such as clogging and burning caused by the growth of the deposits are solved, and stable thermal decomposition treatment can be performed.
【図１】本発明の熱分解処理施設の概念図。FIG. 1 is a conceptual diagram of a thermal decomposition treatment facility of the present invention.
【図２】閉鎖搬送手段の説明図。FIG. 2 is an explanatory view of a closed conveying means.
【図３】付着物除去手段の説明図。FIG. 3 is an explanatory view of a deposit removing means.
１…破砕手段 ２…金属除去手段 ３…容器 ４，１１，２８…閉鎖搬送手段 ５…無端管路 ６…可撓性搬送手段 ７…駆動源 ８…投入口 ９…排出口 １０…ホッパ １２，２２，２９…定量供給手段 １４…処理剤 １５…脱塩炉 １６…供給側ダクト １７，１９…誘導加熱手段 １８…炭化炉 ２０…導出入ダクト ２１…排出側ダクト ２３…熱風炉 ２４…連絡管 ２５…温度調節用空気 ２６…熱交換器 ２７…循環ブロワ ３０…分解ガス燃焼炉 ３１…サイクロン ３２…バグフィルタ ３３…サイレンサ ３４…排気ブロワ ３５…温水利用設備 ３６…ポンプ ３７…灰化物回収手段 ３８…ブロワ ４０，５０，６０，７０…付着物除去手段 Ｌ2，Ｌ3…分解ガス導管DESCRIPTION OF SYMBOLS 1 ... Crushing means 2 ... Metal removal means 3 ... Container 4, 11, 28 ... Closed conveyance means 5 ... Endless pipeline 6 ... Flexible conveyance means 7 ... Drive source 8 ... Input port 9 ... Discharge port 10 ... Hopper 12, 22, 29: fixed-quantity supply means 14: treatment agent 15: desalination furnace 16: supply-side duct 17, 19: induction heating means 18 ... carbonization furnace 20: lead-in / out duct 21: discharge-side duct 23: hot-air stove 24: connecting pipe 25 ... air for temperature control 26 ... heat exchanger 27 ... circulation blower 30 ... cracked gas combustion furnace 31 ... cyclone 32 ... bag filter 33 ... silencer 34 ... exhaust blower 35 ... hot water utilization equipment 36 ... pump 37 ... ash collection means 38 ... blower 40, 50, 60, 70 ... deposit removal means L 2, L 3 ... cracked gas conduit
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２３Ｊ 1/00 Ｆ２３Ｊ 3/00 Ｚ 3/00 Ｃ１０Ｂ 53/00 Ａ // Ｃ１０Ｂ 53/00 Ｆ２３Ｇ 5/16 ＺＡＢＢ Ｆ２３Ｇ 5/16 ＺＡＢ Ｂ０９Ｂ 3/00 ＺＡＢ Ｆターム(参考） 3K061 AA07 AA24 AB02 AC01 AC02 AC03 AC13 AC17 BA01 CA01 FA02 FA10 FA21 FA23 ND03 ND13 QA01 QA08 QA16 3K065 AA07 AB02 AC01 AC02 AC03 AC13 AC17 BA01 CA01 CA02 CA11 HA01 3K078 AA03 BA06 BA07 CA02 CA07 CA21 CA24 4D004 AA02 AA31 AA36 AA46 BA03 CA26 CA27 CA42 CB42 CB43 CB50 CC02 DA02 DA06 DA07 4H012 HA03 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F23J 1/00 F23J 3/00 Z 3/00 C10B 53/00 A // C10B 53/00 F23G 5/16 ZABB F23G 5/16 ZAB B09B 3/00 ZAB F term (reference) 3K061 AA07 AA24 AB02 AC01 AC02 AC03 AC13 AC17 BA01 CA01 FA02 FA10 FA21 FA23 ND03 ND13 QA01 QA08 QA16 3K065 AA07 CA01 AC01 CA01 AC02 AA03 BA06 BA07 CA02 CA07 CA21 CA24 4D004 AA02 AA31 AA36 AA46 BA03 CA26 CA27 CA42 CB42 CB43 CB50 CC02 DA02 DA06 DA07 4H012 HA03
Claims (6)
物を外部間接加熱により減容化する熱分解処理手段と、
発生した残渣を回収する残渣処理手段と、発生した分解
ガスを燃焼する分解ガス燃焼手段と、熱分解処理手段で
発生した分解ガスを分解ガス燃焼手段に導く分解ガス導
管手段と、分解ガス燃焼手段で燃焼した排ガスを排気す
る排気ブロワ手段と、前記熱分解処理手段における被処
理物の流路および／又は分解ガス導管手段に開閉扉を有
する付着物除去手段を備えたことを特徴とする熱分解処
理施設。1. A conveying means for conveying an object to be processed, a thermal decomposition processing means for reducing the volume of the object by external indirect heating,
Residue processing means for collecting the generated residue, cracked gas burning means for burning the generated cracked gas, cracked gas conduit means for leading the cracked gas generated by the thermal cracking means to the cracked gas burning means, cracked gas burning means Pyrolysis, comprising: an exhaust blower for exhausting exhaust gas burned in the apparatus; and an adhering matter removing means having an opening / closing door in a flow path and / or a decomposition gas conduit of the object in the thermal decomposition processing means. Processing facility.
ける加熱処理炉の被処理物の投入側および／又は排出側
に設けたことを特徴とする請求項１記載の熱分解処理施
設。2. The thermal decomposition treatment facility according to claim 1, wherein the attached matter removing means is provided on a side of the heat treatment furnace in the thermal decomposition treatment means where the object to be treated is charged and / or discharged.
分解ガス導管を囲繞する保温管とから成り、保温管内に
熱分解処理手段で発生した分解ガスの温度以上の熱ガス
を導入するようにしたことを特徴とする請求項１又は２
記載の熱分解処理施設。3. The cracked gas conduit means comprises a cracked gas conduit and a heat retaining tube surrounding the cracked gas conduit, and introduces a hot gas having a temperature equal to or higher than the temperature of the cracked gas generated by the thermal decomposition treatment means into the heat retaining tube. 3. The method according to claim 1, wherein
The pyrolysis treatment facility described.
燃焼手段で得た熱ガスを導入することを特徴とする請求
項３記載の熱分解処理施設。4. The thermal decomposition treatment facility according to claim 3, wherein the hot gas introduced into the heat retaining pipe is a hot gas obtained by a decomposition gas burning means.
物を外部間接加熱により減容化する熱分解処理手段と、
発生した残渣を回収する残渣処理手段と、発生した分解
ガスを燃焼する分解ガス燃焼手段と、熱分解処理手段で
発生した分解ガスを分解ガス燃焼手段に導く分解ガス導
管手段と、分解ガス燃焼手段で燃焼した排ガスを排気す
る排気ブロワ手段と、前記熱分解処理手段における被処
理物の流路および／又は分解ガス導管手段に開閉扉を有
する付着物除去手段を備え、前記排気ブロワ手段を起動
して熱分解処理手段と排気ブロワ手段との間におけるガ
スの流路内を一定時間吸引減圧し、所定減圧後、付着物
除去手段の開閉扉を開いて少なくとも分解ガス導管手段
内に空気を急激に導入することで、少なくとも分解ガス
導管内の付着物を除去するようにしたことを特徴とする
熱分解処理施設の運転方法。5. A conveying means for conveying an object to be processed, a thermal decomposition processing means for reducing the volume of the object by external indirect heating,
Residue processing means for collecting the generated residue, cracked gas burning means for burning the generated cracked gas, cracked gas conduit means for leading the cracked gas generated by the thermal cracking means to the cracked gas burning means, cracked gas burning means Exhaust blower means for exhausting the exhaust gas burned in the step, and adhering matter removing means having an opening / closing door in a flow path of the object to be treated and / or a decomposition gas conduit means in the thermal decomposition treatment means, and activating the exhaust blower means. Then, the inside of the gas flow path between the thermal decomposition processing means and the exhaust blower means is sucked and depressurized for a certain period of time, and after a predetermined depressurization, the opening / closing door of the adhering matter removing means is opened and the air is rapidly aspirated into at least the decomposed gas conduit means. A method for operating a pyrolysis treatment facility, characterized in that at least deposits in a decomposition gas conduit are removed by introduction.
始時に行うことを特徴とする請求項５記載の熱分解処理
施設の運転方法。6. The method according to claim 5, wherein the opening of the opening / closing door of the attached matter removing means is performed at the start of operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000318934A JP3951587B2 (en) | 2000-10-19 | 2000-10-19 | Pyrolysis treatment facility and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000318934A JP3951587B2 (en) | 2000-10-19 | 2000-10-19 | Pyrolysis treatment facility and operation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002130638A true JP2002130638A (en) | 2002-05-09 |
| JP3951587B2 JP3951587B2 (en) | 2007-08-01 |
Family
ID=18797479
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000318934A Expired - Fee Related JP3951587B2 (en) | 2000-10-19 | 2000-10-19 | Pyrolysis treatment facility and operation method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010215689A (en) * | 2009-03-13 | 2010-09-30 | Jfe Steel Corp | Apparatus for manufacturing formed coke |
| WO2018171566A1 (en) * | 2017-03-23 | 2018-09-27 | 肖国雄 | Dry distillation type discontinuous tunnel pyrolysis furnace |
-
2000
- 2000-10-19 JP JP2000318934A patent/JP3951587B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010215689A (en) * | 2009-03-13 | 2010-09-30 | Jfe Steel Corp | Apparatus for manufacturing formed coke |
| WO2018171566A1 (en) * | 2017-03-23 | 2018-09-27 | 肖国雄 | Dry distillation type discontinuous tunnel pyrolysis furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3951587B2 (en) | 2007-08-01 |
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