JP2006349224A - Scrap tire recycling device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an innovative scrap tire recycling device with favorable profitability since recycling of tires is still not popular, and there seems to be no end to illegal dumping or the like. <P>SOLUTION: To increase the number of scrap tires that can be treated, and to improve profitability, self heating of the scrap tire is carried out from an interior to 250°C by a microwave generated by a microwave generator 6, the scrap tire is inputted in a rotary kiln 10, pyrolysis at 300-450°C is carried out by rotary agitation and heating from a kiln exterior, and it is separated into gas, steel, and char by a screen in the kiln. The gas is sucked and cooled, and used as fuel of a kiln exterior heating burner 28, the steel is recovered after separating it from char again, and the char is recovered as activated carbon by carrying out steam-activation. Everything can be efficiently recovered and recycled by continuous processes, and dioxin generation of combustion gas can be suppressed also. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は廃タイヤをリサイクルするために、出力コントロールが簡単で瞬間的に被加熱物に浸透し、周囲を熱くするロスがなく高い熱効率が得られるマイクロ波で予熱しロータリーキルンでチャーと油の回収率の良い温度で熱分解と分離を連続で行い、スチール、活性炭、ガス及び油を回収する方法の採算性に効力が得られる装置。 In order to recycle waste tires, the present invention can easily control output, instantaneously penetrates the object to be heated, preheats with microwaves that can obtain high thermal efficiency without loss of heating around, and recovers char and oil in a rotary kiln. A device that is effective in the profitability of the method of recovering steel, activated carbon, gas and oil by continuously performing pyrolysis and separation at a good temperature.

従来の廃タイヤリサイクル方法のうちマイクロ波加熱利用や活性炭製造及び装置。
特開2001−89121公報 特開2000−34114公報 特開平9−227112公報 特開2002−130960公報 特開2003−75077公報 特開平5−222377公報 特開H9−59653公報等多くの方法や装置が提示されている。 Among conventional waste tire recycling methods, microwave heating and activated carbon production and equipment.
JP 2001-89121 A JP 2000-34114 A JP 9-227112 A Japanese Patent Laid-Open No. 2002-130960 JP 2003-75077 A JP-A-5-222377 Many methods and apparatuses such as Japanese Patent Application Laid-Open No. H9-59653 have been presented.

本発明は以上のような従来の方法、装置では廃タイヤを連続でリサイクルすることが効率よくできず採算性が解決されていないため、不法投棄等も後を絶たない、よって採算のとれる廃タイヤリサイクル装置の提供を目的としている。 The present invention is not able to efficiently recycle waste tires continuously with the conventional methods and apparatuses as described above, and the profitability has not been solved. The purpose is to provide recycling equipment.

（1）
上記の目的を達成するために本発明は廃タイヤの加熱分解、分離、回収を行う方法で、廃タイヤは外部からの加熱だけでは熱が伝わりにくく効率が悪いためマイクロ波を利用し内部から自己発熱させる方法でマイクロ波の効率を良くするため予備加熱をする搬送装置はマイクロ波反射材であるステンレス鋼で製作し反射撹拌を効率よく行いマイクロ波の漏れ防止のため、ステンレス製反射板を入口に2枚、出口に2枚取付け、同時に開放しない構造と予熱が効率よくできるようにロータリーキルン加熱バーナー燃焼ガスを下槽に取込み加熱する構造を有した装置で、廃タイヤが熱分解を始める300℃以内、250℃前後の温度まで2.45GHzマイクロ波で廃タイヤ内部より自己発熱による予備加熱を行い、熱分解が短時間で効率よくできるようにしてロータリーキルンに投入する方法を特徴としている。 (1)
In order to achieve the above object, the present invention is a method for thermally decomposing, separating and recovering waste tires, and waste tires are difficult to transmit heat only from the outside and are inefficient. In order to improve the efficiency of the microwave by generating heat, the preheating device is made of stainless steel, which is a microwave reflector, and the reflector is made of stainless steel for efficient reflection stirring and the prevention of microwave leakage. 2 at the outlet, 2 at the outlet, and a structure that does not open at the same time and a structure that heats the rotary kiln heating burner combustion gas into the lower tank so that preheating can be performed efficiently. The rotor is preheated by self-heating from the inside of the waste tire with 2.45GHz microwave to a temperature of around 250 ° C so that the thermal decomposition can be efficiently performed in a short time. It features a method of introducing the Kirun.

（2）
ロータリーキルンに投入された廃タイヤの加熱分解と分離の方法で、内部より自己発熱した廃タイヤを外部から加熱するためロータリーキルンを熱分解で発生したガスと油を燃料に使用した混焼バーナーで外部加熱し高温となった内部で回転攪拌し温度を上げながらチャーと油の回収が多い温度の300℃〜450℃で熱分解し、螺旋付網でスチール、チャー、ガスへの分離を連続で行う方法を特徴としている。 (2)
This is a method of thermal decomposition and separation of waste tires put into the rotary kiln.To heat the waste tires that generate heat from the outside, the rotary kiln is externally heated with a mixed burner using gas and oil generated by pyrolysis as fuel. A method of performing thermal decomposition at 300 ° C to 450 ° C, the temperature at which char and oil are often recovered, while rotating and stirring inside a hot interior, and continuously separating into steel, char and gas with a spiral mesh It is a feature.

（3）
分離されたガス、スチール、チャーの回収方法で、ガスはブロアーで吸引し除塵、冷却、油水分離をして回収した油と、油にならなかったガスをキルン加熱の混焼バーナーの燃料として再利用し、スチールはチャーの付着を再度分離させるためローラーで圧縮して回収し、チャーは温水を吹付けスクリューコンベアーで搬送しながら加熱する方法で水蒸気賦活を行い活性炭として回収し、廃タイヤ構成物全てを分解、分離、回収を連続で効率よく行う方法を特徴として採算性にも効力が得られる。 (3)
The recovered gas, steel, and char are collected using a blower to remove the dust, cool it, and separate the oil and water, and reuse the recovered oil as fuel for the kiln-heated mixed burner. Steel is then recovered by compressing it with a roller in order to separate the adhesion of char again, and char is recovered as activated carbon by steam activation using a method of heating while transporting with hot water spraying screw conveyor, and all the waste tire components Efficient profitability can be obtained with a method that efficiently and continuously decomposes, separates and recovers.

（4）
回収したガス及び油を混焼バーナーで燃焼した排ガスの排出方法で、キルン外部加熱の燃焼室は螺旋を付けてあり、燃焼ガスは螺旋に沿って回り800℃以上で外気を遮断した状態で滞留時間を長くし煙突内に水配管を配して排煙温度を200℃にして、ダイオキシン類の発生を抑制する方法を特徴とし、廃タイヤを連続して効率よく、公害及び廃棄物を排出せずにリサイクルでき環境保全にも効果が得られる。 (Four)
Exhaust gas discharged from combustion of recovered gas and oil with a mixed burner. Combustion chamber of kiln external heating has a spiral, and the combustion gas travels along the spiral and stays in a state where the outside air is shut off at over 800 ℃ It is characterized by a method that suppresses the generation of dioxins by lengthening the length of water pipes in the chimney and setting the smoke emission temperature to 200 ° C, eliminating waste and exhausting waste tires continuously and efficiently. It can be recycled in an environmentally effective manner.

（5）
以下本発明の廃タイヤリサイクル装置の実施の形態を図に基づいて説明する。 (Five)
Embodiments of the waste tire recycling apparatus of the present invention will be described below with reference to the drawings.

図1は本発明の実施例1の断面図であり、廃タイヤ1を搬送装置本体4にステンレス製のマイクロ波反射板2を通過させ、その反射板が閉じてから2枚目の反射板が開いて本体内部のステンレス製のマイクロ波加熱槽に入る加熱槽は下部にキルンより熱風通路27より燃焼ガスを取込み加熱する。2.45GHzマイクロ波発振器6で発振したマイクロ波は加熱槽で反射攪拌し廃タイヤ1を内部より自己発熱させ250℃前後の温度まで上昇させる。3枚目の反射板を開けて廃タイヤを移動させ3枚目の反射板を閉めて、4枚目の投入用反射板を開けてロータリーキルン本体10に投入する。以上の工程でマイクロ波の漏れ防止と廃タイヤの予備加熱を連続で行う。ロータリーキルン10に投入された廃タイヤは混焼バーナー28による外部からの加熱で温度を上げながら回転し300〜450℃で螺旋付網15においてスチール36、チャー35に分離される。分離されたガスはブロアー17で吸引し、サイクロン18で除塵し、ガス冷却器19で油化し油水分離器20を通して油を回収し、油にならなかったガスとをキルン加熱の混焼バーナー28の燃料とする。スチールは螺旋付網15でチャーと分離しながら排出され回転ローラー21で圧縮し再度チャーとの分離を行って回収する。スチールと分離したチャーは螺旋14によって排出され温水を吹付けスクリューコンベアー23で搬送しながら加熱バーナー34で加熱する水蒸気賦活を行って回収する。回収したガス及び油は混焼バーナー28で燃焼し、燃焼ガスは燃焼室11内部の螺旋12に沿って燃焼室11を滞留時間を長くして回り煙突16内に水配管37で排煙を200℃に冷却してダイオキシン類の発生を抑制して煙突16より排煙する。連続で効率よくリサイクルができ採算性に効力が得られる廃タイヤリサイクル装置である。 FIG. 1 is a cross-sectional view of Embodiment 1 of the present invention, in which a waste tire 1 is passed through a conveyor body 4 through a stainless steel microwave reflector 2, and the second reflector is closed after the reflector is closed. The heating tank that opens and enters the stainless steel microwave heating tank inside the main body takes the combustion gas from the hot air passage 27 into the lower part and heats it. The microwaves oscillated by the 2.45 GHz microwave oscillator 6 are reflected and stirred in the heating tank to cause the waste tire 1 to self-heat from the inside and raise the temperature to around 250 ° C. The third reflector is opened, the waste tire is moved, the third reflector is closed, the fourth reflector is opened, and the rotary kiln 10 is inserted. Through the above steps, microwave leakage prevention and preheating of waste tires are continuously performed. The waste tire thrown into the rotary kiln 10 rotates while raising the temperature by external heating by the mixed combustion burner 28, and is separated into steel 36 and char 35 in the spiral mesh 15 at 300 to 450 ° C. The separated gas is sucked by the blower 17, dust is removed by the cyclone 18, converted to oil by the gas cooler 19, oil is recovered through the oil / water separator 20, and the gas that has not been converted to oil is used as the fuel for the kiln heating mixed combustion burner 28. And The steel is discharged while being separated from the char by the spiral mesh 15, compressed by the rotating roller 21, separated from the char again and collected. The char separated from the steel is discharged by the spiral 14 and recovered by performing steam activation by heating with a heating burner 34 while transporting hot water with a screw conveyor 23. The recovered gas and oil are combusted in the mixed combustion burner 28, and the combustion gas travels through the combustion chamber 11 along the spiral 12 inside the combustion chamber 11 for a longer residence time and exhausts smoke at 200 ° C in the chimney 16 through the water pipe 37. The product is cooled down to suppress the generation of dioxins and exhausted from the chimney 16. It is a waste tire recycling device that can be continuously and efficiently recycled and has an effect on profitability.

本発明の廃タイヤリサイクル装置は、燃焼処理方法が主流であるが今後はリサイクルに切替える必要があるので、廃タイヤ処理業には利用増が見込める。 In the waste tire recycling apparatus of the present invention, the combustion treatment method is the mainstream, but it is necessary to switch to recycling in the future.

本発明を実施するための最良の形態の断面図である。It is sectional drawing of the best form for implementing this invention. 本発明を実施するための燃焼部の正面図である。It is a front view of the combustion part for implementing this invention. 本発明を実施するためのキルン排出口の正面図である。It is a front view of the kiln discharge port for implementing this invention.

符号の説明Explanation of symbols

1…廃タイヤ 2…マイクロ波反射板 3…廃タイヤ搬送装置 4…搬送装置本体
5…搬送ローラー 6…マイクロ波発振器 7…導波管 8…マイクロ波他電源（200V）
9…点検扉 10…ロータリーキルン本体 11…燃焼室 12…燃焼室螺旋
13…ロータリーキルン駆動ギヤー 14…チャー搬送用螺旋
15…スチール搬送及びチャーとの分離用螺旋付網 16…煙突 17…ガス吸引ブロアー 18…サイクロン 19…ガス冷却器 20…油水分離器 21…圧縮ローラー
22…駆動ギヤードモーター 23…スクリューコンベアー 24…駆動ギヤードモーター
25…スチール槽 26…ロータリーキルン駆動サイクロ減速モーター
27…熱風通路 28…ガス油混焼バーナー 29…熱分解油配管 30…熱分解ガス配管
31…サイドローラー 32…キルン受ローラー 33…耐火断熱材
34…チャー加熱バーナー
35…チャー 36…スチール 37…水配管
1 ... Waste tire 2 ... Microwave reflector 3 ... Waste tire transport device 4 ... Transport device body
5 ... Conveying roller 6 ... Microwave oscillator 7 ... Waveguide 8 ... Microwave power supply (200V)
9 ... Inspection door 10 ... Rotary kiln body 11 ... Combustion chamber 12 ... Combustion chamber spiral
13 ... Rotary kiln drive gear 14 ... Spiral for char transport
15 ... Steel helix with separation for steel transport and char 16 ... Chimney 17 ... Gas suction blower 18 ... Cyclone 19 ... Gas cooler 20 ... Oil-water separator 21 ... Compression roller
22 ... Drive geared motor 23 ... Screw conveyor 24 ... Drive geared motor
25… Steel tank 26… Rotary kiln drive cyclo reduction motor
27 ... Hot air passage 28 ... Gas oil mixed burner 29 ... Pyrolysis oil piping 30 ... Pyrolysis gas piping
31 ... Side roller 32 ... Kiln receiving roller 33 ... Fireproof insulation
34… Char heating burner
35 ... Char 36 ... Steel 37 ... Water piping

Claims (4)

廃タイヤの加熱分解、分離、回収を行う方法で、廃タイヤは外部からの加熱だけでは熱が伝わりにくく効率が悪いためマイクロ波を利用し内部から自己発熱させる方法でマイクロ波の効率を良くするため予備加熱をする搬送装置はマイクロ波反射材であるステンレス鋼で製作し反射撹拌を効率よく行いマイクロ波の漏れ防止のため、ステンレス製反射板を入口に2枚、出口に2枚取付け、同時に開放しない構造と予熱が効率よくできるようにロータリーキルン加熱バーナー燃焼ガスを下槽に取込み加熱する構造を有した装置で、廃タイヤが熱分解を始める300℃以内、250℃前後の温度まで2.45GHzマイクロ波で廃タイヤ内部より自己発熱による予備加熱を行い、熱分解が短時間で効率よくできるようにしてロータリーキルンに投入する方法の廃タイヤリサイクル装置。 This is a method of thermal decomposition, separation, and recovery of waste tires. Since waste tires are not efficient because heat is not transmitted only from outside, the efficiency of microwaves is improved by using microwaves to generate heat from the inside. Therefore, the preheating device is made of stainless steel, which is a microwave reflecting material, and reflection stirring is efficiently performed to prevent leakage of microwaves. At the same time, two stainless steel reflectors are installed at the inlet and two at the outlet. A device that has a structure that does not open and a structure that heats the rotary kiln heating burner combustion gas into the lower tank so that preheating can be performed efficiently. Waste tires that are preheated by self-heating from the inside of the waste tires by waves and put into the rotary kiln so that thermal decomposition can be efficiently performed in a short time Cycle device. 前記方法により予備加熱をしてロータリーキルンに投入された廃タイヤは内部から自己発熱しており、キルン内では外部より加熱をするため、熱分解で発生したガス及び油を燃料としたバーナーでロータリーキルン外部からの加熱で温度を上昇させながら回転攪拌し300℃から熱分解を始め450℃前後のチャー及び油の回収率の良い温度で、螺旋付網によりスチールとチャー及びガスに分離させる方法の廃タイヤリサイクル装置。 The waste tires preheated by the above method and put into the rotary kiln are self-heated from the inside, and are heated from outside in the kiln, so a burner that uses gas and oil generated by pyrolysis as fuel and the outside of the rotary kiln Waste tires with a method of separating the steel and char and gas by a spiral mesh at a temperature with good recovery rate of char and oil at around 450 ° C by rotating and stirring while increasing the temperature by heating from Recycling equipment. 前記方法によりロータリーキルン内で分離されたガス、スチール、チャーの回収の方法で、ガスはブロアーで吸引しサイクロンで除塵し冷却器を通り、油水分離器を通して回収した油と油にならなかったガスをキルン加熱混焼バーナーの燃料とし、スチールは再度チャーとの分離を行うため圧縮ローラーを通して回収し、チャーは温水を吹付けスクリューコンベアーで搬送しながら加熱する方法で水蒸気賦活を行って活性炭にして回収する方法の廃タイヤリサイクル装置。 The gas, steel, and char separated in the rotary kiln by the above method are collected. The gas is sucked with a blower, removed with a cyclone, passed through a cooler, and the oil recovered through the oil-water separator and the gas that has not become oil are collected. The fuel is used as a fuel for the kiln heated co-firing burner, and the steel is recovered through a compression roller for separation from the char again, and the char is recovered as activated carbon by steam activation using a method in which hot water is sprayed and conveyed by a screw conveyor. Method waste tire recycling equipment. 前記方法で回収したガス、油を混焼バーナーで燃焼した排ガスは、キルン外部燃焼室螺旋を回り800℃以上で外気と遮断した状態で滞留時間を長くし煙突内に水配管を配して排煙温度を200℃にしてダイオキシン類の発生を抑制する方法の廃タイヤ熱分解ガス燃焼装置を有したリサイクル装置。
Exhaust gas burned with gas and oil recovered by the above method with a co-firing burner goes around the spiral of the kiln external combustion chamber and is cut off from the outside air at 800 ° C or higher, and the residence time is lengthened and water piping is arranged in the chimney to remove the smoke. Recycling device with waste tire pyrolysis gas combustion device with a method of suppressing the generation of dioxins at a temperature of 200 ° C.

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