JP2002174412A - Method of incinerating organic waste - Google Patents
Method of incinerating organic wasteInfo
- Publication number
- JP2002174412A JP2002174412A JP2000373637A JP2000373637A JP2002174412A JP 2002174412 A JP2002174412 A JP 2002174412A JP 2000373637 A JP2000373637 A JP 2000373637A JP 2000373637 A JP2000373637 A JP 2000373637A JP 2002174412 A JP2002174412 A JP 2002174412A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- organic waste
- exhaust gas
- combustion
- heat
- 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.)
- Pending
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、汚泥・家畜糞・生
ゴミ等の高含水の有機性廃棄物を焼却する方法に関し、
更に詳細には、この有機性廃棄物を通気乾燥処理により
乾燥原料に変え、この乾燥原料を焼却することにより焼
却負荷を減少させ、同時に排ガス等の高温の熱エネルギ
ーを有効利用できるようにした有機性廃棄物の焼却方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for incinerating highly water-containing organic wastes such as sludge, livestock dung and garbage.
More specifically, this organic waste is converted into a dry raw material by aeration drying treatment, and the incineration of the dry raw material reduces the incineration load, and at the same time, enables the effective use of high-temperature heat energy such as exhaust gas. It relates to the incineration method of municipal waste.
【０００２】[0002]
【従来の技術】一般に、乾燥廃棄物を燃焼させる場合に
は、燃焼装置に補助燃料を投入し、この補助燃料の燃焼
エネルギーで初期投入された廃棄物を燃焼させ、この初
期廃棄物の燃焼エネルギーで後続投入される廃棄物の燃
焼を継続させ、以後の燃焼サイクルを連続させている。
従って、排ガスの熱エネルギーは余剰エネルギーとなる
から、この熱エネルギーを利用して発電を行ったり、工
場内熱源や地域熱源として有効活用する傾向にある。2. Description of the Related Art Generally, when burning dry waste, auxiliary fuel is charged into a combustion device, and the initially input waste is burned with the combustion energy of the auxiliary fuel. , The combustion of the waste subsequently injected is continued, and the subsequent combustion cycle is continued.
Therefore, the thermal energy of the exhaust gas becomes surplus energy, and there is a tendency to generate electric power using this thermal energy or to effectively use it as a heat source in a factory or a local heat source.
【０００３】これに対し、生ゴミ・有機汚泥・家畜糞尿
・屎尿・食品残渣・魚介残渣などの有機性廃棄物（以
下、生原料という）は大量の水を含んでいるために、こ
れらの生原料を焼却処理する場合には、有機物を焼却す
る問題だけでなく、大量の水を蒸発処理するために生じ
る特有の技術的課題がある。On the other hand, organic wastes (hereinafter, referred to as raw materials) such as garbage, organic sludge, livestock manure, human waste, food residues, and seafood residues contain a large amount of water. When a raw material is incinerated, there are not only a problem of incineration of organic substances but also a specific technical problem caused by evaporating a large amount of water.
【０００４】図３は有機性廃棄物を燃焼させる第1従来
例のブロックダイアグラムを示している。この従来例で
は、生原料２を投入フィーダ１４から燃焼装置１６に直
接投入し、有機物が燃焼して生じる排ガスや水蒸気を後
段の排ガス処理装置１８により浄化処理して大気中に放
出している。FIG. 3 is a block diagram showing a first conventional example for burning organic waste. In this conventional example, the raw material 2 is directly charged from a charging feeder 14 into a combustion device 16, and exhaust gas and water vapor generated by burning of organic matter are purified by a downstream exhaust gas treatment device 18 and released to the atmosphere.
【０００５】前述したように、生原料２は高含水である
から、投入初期の生原料２を燃焼させるためには水の蒸
発により予想外に大量の補助燃料が必要となる。また、
生原料が燃え出したとしても、その燃焼エネルギーで後
続投入される生原料２を燃焼させなければならない。後
続の生原料２にも大量の水が含まれているから、この水
の蒸発に燃焼エネルギーの多くが消費され、必然的に排
ガス温度が低下し、排ガスの熱エネルギーの有効利用は
とても望むことは出来ない。As described above, since the raw material 2 has high water content, an unexpectedly large amount of auxiliary fuel is required due to evaporation of water in order to burn the raw material 2 at the initial stage of charging. Also,
Even if the raw material burns out, the raw material 2 to be subsequently supplied must be burned with the combustion energy. Since the subsequent raw material 2 also contains a large amount of water, a large amount of combustion energy is consumed in the evaporation of this water, which inevitably lowers the exhaust gas temperature, and it is highly desirable to use the thermal energy of the exhaust gas effectively. Can not.
【０００６】図４は有機性廃棄物を燃焼させる第２従来
例のブロックダイアグラムを示している。この第２従来
例は第１従来例を改良したもので、生原料２を熱風乾燥
装置４に投入して事前に乾燥原料１２へと転換させる方
式である。この乾燥原料１２を投入フィーダ１４から燃
焼装置１６へ投入し、生じた排ガスの熱エネルギーを蒸
気として回収して前記熱風乾燥装置４の熱源に利用し、
最終的に排ガスは排ガス処理装置１８により浄化されて
大気中に放出される。FIG. 4 shows a block diagram of a second conventional example for burning organic waste. The second conventional example is an improvement of the first conventional example, in which the raw material 2 is supplied to a hot-air drying device 4 and converted into a dry raw material 12 in advance. The dried raw material 12 is introduced into the combustion device 16 from the input feeder 14, and the thermal energy of the generated exhaust gas is recovered as steam and used as a heat source of the hot air drying device 4.
Finally, the exhaust gas is purified by the exhaust gas treatment device 18 and released into the atmosphere.
【０００７】この従来例では、排ガスの熱エネルギーを
熱風乾燥装置４の熱源として利用しているために、排ガ
スの温度が低下し、この排ガスの余剰熱を発電などに利
用することが困難になることである。つまり、この方式
では、生原料を乾燥させるためだけに排ガスの熱エネル
ギーが利用され、原料をただ燃焼させて排ガスを放出す
るだけであるから、排ガスの熱エネルギーの再利用とい
う地域環境への貢献を全く行うことが出来ない。In this conventional example, since the thermal energy of the exhaust gas is used as a heat source of the hot-air drying device 4, the temperature of the exhaust gas decreases, and it becomes difficult to use the excess heat of the exhaust gas for power generation and the like. That is. In other words, in this method, the thermal energy of the exhaust gas is used only to dry the raw material, and the raw material is simply burned and the exhaust gas is released, contributing to the local environment by reusing the thermal energy of the exhaust gas. Cannot be performed at all.
【０００８】[0008]
【発明が解決しようとする課題】従って、本発明の目的
は、有機性廃棄物からなる生原料を燃焼処理すると同時
に、その排ガスの熱エネルギーに余剰エネルギー分を確
保して発電や熱源等に積極的に利用し、地域環境に貢献
できる有機性廃棄物の燃焼方法を実現することである。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to simultaneously process a raw material consisting of organic waste, and at the same time, secure excess energy in the heat energy of the exhaust gas to actively generate electricity and heat. It is to realize a method of burning organic waste that can be used in a local manner and contribute to the local environment.
【０００９】[0009]
【課題を解決するための手段】請求項１の発明は、水分
を含んだ有機性廃棄物からなる生原料を通気乾燥装置に
投入する第1工程と、この通気乾燥装置内で生原料を発
酵乾燥させて乾燥原料にする第２工程と、この乾燥原料
を燃焼装置に投入して燃焼させる第３工程から構成され
ることを特徴とする有機性廃棄物の焼却方法である。According to the first aspect of the present invention, there is provided a first step in which a raw material comprising organic waste containing water is introduced into a through-air drying apparatus, and the raw material is fermented in the through-air drying apparatus. An organic waste incineration method characterized by comprising a second step of drying into a dry raw material and a third step of putting the dry raw material into a combustion device and burning it.
【００１０】請求項２の発明は、前記通気乾燥装置は、
生原料を堆積する発酵槽と、この発酵槽に空気を送気す
る送気装置と、発酵槽内の生原料を攪拌する攪拌装置
と、発生した臭気を脱臭する脱臭装置を具備する請求項
1に記載の有機性廃棄物の焼却方法である。According to a second aspect of the present invention, the through-drying device includes:
A fermenter for depositing a raw material, an air supply device for supplying air to the fermenter, a stirring device for stirring the raw material in the fermenter, and a deodorizing device for deodorizing generated odor.
1. The method for incineration of organic waste according to 1.
【００１１】請求項３の発明は、前記焼却装置において
発生した排ガス等の高温の熱エネルギーを電気エネルギ
ー等の有効エネルギーに転換する第4工程を含む請求項
１に記載の有機性廃棄物の焼却方法である。[0013] The invention of claim 3 includes the fourth step of converting high-temperature heat energy such as exhaust gas generated in the incinerator into effective energy such as electric energy. Is the way.
【００１２】請求項４の発明は、前記燃焼装置が循環流
動型焼却炉である請求項１に記載の有機性廃棄物の焼却
方法である。According to a fourth aspect of the present invention, there is provided the organic waste incineration method according to the first aspect, wherein the combustion device is a circulating fluid incinerator.
【００１３】[0013]
【発明の実施の形態】本発明者等は、排ガスの熱エネル
ギーを有効利用できる焼却システムを鋭意研究した結
果、生原料を排ガス以外の手段で乾燥させて乾燥原料と
し、この乾燥原料を燃焼させることによって排ガスの熱
エネルギーに余剰エネルギーを確保し、この余剰熱エネ
ルギーを発電や地域の熱源とする焼却システムを想到す
るに到った。BEST MODE FOR CARRYING OUT THE INVENTION The present inventors have conducted intensive studies on an incineration system capable of effectively utilizing the heat energy of exhaust gas. As a result, surplus energy has been secured for the heat energy of the exhaust gas, and this surplus heat energy has been conceived of a power generation system or an incineration system that uses the heat as a local heat source.
【００１４】排ガスを用いずに生原料を乾燥させる方法
としては通気乾燥法が最良である。この通気乾燥法はい
わゆる発酵乾燥法であり、有機性廃棄物が発酵により発
生する発酵熱を生原料の乾燥に利用する方法である。つ
まり、生原料を通気して発酵させ、その発酵熱により生
原料を乾燥させれば、排ガスの熱エネルギーを全く利用
することなく生原料の乾燥を実現することができるか
ら、極めて合理的な焼却システムを構成することができ
る。The best way to dry raw materials without using exhaust gas is through-flow drying. This aeration drying method is a so-called fermentation drying method in which fermentation heat generated by fermentation of organic waste is used for drying raw materials. In other words, if the raw material is aerated and fermented, and the raw material is dried by the heat of the fermentation, the raw material can be dried without using the thermal energy of the exhaust gas at all. The system can be configured.
【００１５】生原料を発酵させる微生物は既に自然に生
原料に付着しているが、発酵微生物を種菌として生原料
に与えれば発酵を促進することができる。生原料を発酵
槽に投入した後、発酵を促進させるために、発酵槽を攪
拌しながら空気を送気する。発酵は嫌気性微生物でも行
われるが、好気性微生物でも行われ、空気を送気するこ
とにより、好気性微生物の生理活動を活発にして発酵を
促進できる。また、生原料を攪拌すれば、空気を生原料
の隅々にまで供給して発酵の促進を図れる。The microorganisms that ferment the raw material are already naturally attached to the raw material, but fermentation can be promoted by giving the fermenting microorganism to the raw material as a seed. After feeding the raw material into the fermenter, air is supplied while stirring the fermenter to promote fermentation. Although fermentation is performed by anaerobic microorganisms, it is also performed by aerobic microorganisms. By feeding air, the physiological activity of aerobic microorganisms can be activated to promote fermentation. Further, if the raw material is stirred, air can be supplied to every corner of the raw material to promote fermentation.
【００１６】生原料の乾燥は生原料への送気と攪拌によ
っても自然に行われるが、この程度の自然乾燥では乾燥
速度が小さい。しかし、生原料が発酵すると大量の発酵
熱が発生し、この発酵熱により生原料は加熱され、生原
料の水分は次第に蒸発して乾燥が行われる。攪拌によっ
て発酵熱は生原料の隅々に行き渡って乾燥を促進し、し
かも発酵微生物の拡散によって生原料の全域で発酵が促
進される。このように、本発明の通気乾燥は、主として
この発酵熱によって行われる。Drying of the raw material is also carried out spontaneously by feeding air into the raw material and stirring. However, such a natural drying has a low drying rate. However, when the raw material is fermented, a large amount of fermentation heat is generated, and the raw material is heated by the fermentation heat, and the moisture of the raw material gradually evaporates and is dried. The agitation causes the heat of fermentation to spread throughout the raw material to promote drying, and the diffusion of the fermenting microorganisms promotes fermentation throughout the raw material. Thus, the aeration drying of the present invention is mainly performed by this fermentation heat.
【００１７】以下に、本発明に係る有機性廃棄物の焼却
方法の実施形態を図面に従って詳細に説明する。図１は
本発明に係る有機性廃棄物の焼却方法のブロックダイア
グラムを示している。生原料２は、前述したように、生
ゴミ・有機汚泥・家畜糞尿・屎尿・食品残渣・魚介残渣
などのように水分を大量に含んだ有機性廃棄物であるAn embodiment of the method for incinerating organic waste according to the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a block diagram of an organic waste incineration method according to the present invention. As described above, the raw material 2 is an organic waste containing a large amount of water, such as garbage, organic sludge, livestock manure, human waste, food residue, seafood residue, and the like.
【００１８】この生原料２は通気乾燥装置５に投入され
て通気乾燥される。後述する図２には、回転ドラム式通
気乾燥装置を示しているが、発酵槽の形は送気装置と攪
拌装置を備えていればどんな形式でも構わない。具体的
には、生原料２は発酵槽６に投入堆積され、この発酵槽
６内に送気装置７により空気が供給され、同時に攪拌装
置８により生原料２が攪拌される。生原料２には発酵微
生物が既に自然に付着しており、この発酵微生物により
生原料２は次第に発酵され、送気と攪拌によって発酵は
生原料２の全域に拡大促進される。The raw material 2 is put into a through-air drying device 5 and is through-air dried. FIG. 2 to be described later shows a rotary drum-type through-air drying apparatus, but the fermenter may be in any form as long as it has an air supply device and a stirring device. Specifically, the raw material 2 is charged and deposited in the fermenter 6, air is supplied to the fermenter 6 by the air supply device 7, and the raw material 2 is simultaneously stirred by the stirring device 8. The fermenting microorganisms have already naturally adhered to the raw material 2, and the fermenting microorganisms gradually ferment the raw material 2, and the fermentation is expanded and promoted throughout the raw material 2 by air supply and stirring.
【００１９】発酵過程で発生する発酵熱は発酵微生物の
増殖を促し、更に発酵が加速するに従って発酵熱が発生
し、この発酵熱によって生原料２は強制的に乾燥されて
ゆく。発酵中に発生するガスは悪臭が多いため、併設す
る脱臭装置１０により脱臭され、屋外に悪臭を放散しな
いので、環境を健全に保持できる。The heat of fermentation generated in the fermentation process promotes the growth of the fermenting microorganisms. Further, as the fermentation accelerates, heat of fermentation is generated, and the raw material 2 is forcibly dried by the heat of fermentation. Since the gas generated during fermentation has a lot of bad smell, it is deodorized by the attached deodorizing device 10 and does not emit the bad smell outdoors, so that the environment can be kept healthy.
【００２０】前記通気乾燥装置５により生原料２は乾燥
原料１２へと転換される。一般に、生原料の水分含量は
７０〜８０％もあるが、この通気乾燥により乾燥原料１
２の水分含量は３０〜５０％へと低減でき、乾燥過程で
蒸発した水分は２０〜３０％にも達する。The raw material 2 is converted into a dry raw material 12 by the through-air drying device 5. In general, the raw material has a water content of 70 to 80%,
2, the water content can be reduced to 30-50%, and the water evaporated during the drying process can reach 20-30%.
【００２１】乾燥原料１２は投入フィーダ１４を通して
焼却装置１６に投入され、初期燃焼では補助燃料の助勢
により燃焼される。乾燥原料１２中の水分含量は少ない
ので、補助燃料も一定量以上は必要ない。後続して投入
される乾燥燃料１２の燃焼エネルギーにより自立燃焼が
生起し、以後安定した燃焼が継続する。The dry raw material 12 is fed into the incinerator 16 through the feeder 14, and is burned with the aid of the auxiliary fuel in the initial combustion. Since the moisture content in the dry raw material 12 is small, no more than a certain amount of auxiliary fuel is required. Independent combustion occurs due to the combustion energy of the subsequently supplied dry fuel 12, and thereafter stable combustion continues.
【００２２】燃焼エネルギーのうち水分蒸発に消費され
る熱量は小さく、燃焼により生じた排ガスは依然として
高温の熱エネルギーを有している。従って、この排ガス
の熱エネルギーによりボイラーで水蒸気を発生させ、こ
の水蒸気で蒸気タービンを回転させて発電し、工場や地
域の電力として使用される。排出した蒸気は工場等に回
送されて、熱源として利用できる。The amount of heat consumed for evaporating water out of the combustion energy is small, and the exhaust gas generated by the combustion still has high-temperature heat energy. Therefore, steam is generated in the boiler by the heat energy of the exhaust gas, and the steam is rotated by the steam to generate power and used as power for factories and local areas. The discharged steam is sent to factories and the like and can be used as a heat source.
【００２３】排ガスの有効利用は発電に限らず、公知の
技術全てに利用できる。例えば、排ガスを熱源として直
接利用すれば、低コストで工場や地域の冷暖房、温泉、
養殖などが実現できる。このように、排ガスの廃熱利用
をした後、低温化した排ガスは排ガス処理装置１８によ
り浄化されて、大気中に放出される。The effective use of exhaust gas is not limited to power generation, but can be used for all known techniques. For example, if exhaust gas is directly used as a heat source, it can be used at low cost to cool and heat plants and
Aquaculture can be realized. As described above, after using the waste heat of the exhaust gas, the cooled exhaust gas is purified by the exhaust gas treatment device 18 and released into the atmosphere.
【００２４】図２は本発明にかかる有機性廃棄物の焼却
方法の一実施形態を示す概略装置図である。通気乾燥装
置５の搬入口２１から生原料２を矢印ａ方向に投入し、
スクリューフィーダ２２によりこの生原料２を発酵槽６
へ順次移送する。発酵槽６は回転円筒型で、モータ２４
により発酵槽６を回転させて内部に堆積された生原料２
を回転攪拌する。この回転機構が前述した攪拌装置８と
なる。FIG. 2 is a schematic apparatus diagram showing an embodiment of the method for incinerating organic waste according to the present invention. Raw material 2 is introduced from the entrance 21 of the through-air drying device 5 in the direction of arrow a,
The raw material 2 is fed to the fermenter 6 by the screw feeder 22.
Sequentially transferred to The fermenter 6 is of a rotary cylindrical type and has a motor 24.
The raw material 2 deposited inside by rotating the fermenter 6
Is rotated and stirred. This rotating mechanism is the above-described stirring device 8.
【００２５】発酵槽２６の後部外側には通風機２９が配
置され、導入管３０、自在管３１、分配弁３２、空気送
入ノズル３３ａ、３３ｂ及びノズル孔３３ｃを通して発
酵槽６内に空気が送気される。これらの部材群が前述し
た送気装置７である。注入された空気は発酵槽６の回転
に連れて生原料２と攪拌され、生原料２の発酵が促進さ
れる。A ventilator 29 is disposed outside the rear part of the fermenter 26, and air is fed into the fermenter 6 through an inlet pipe 30, a universal pipe 31, a distribution valve 32, air inlet nozzles 33a and 33b, and nozzle holes 33c. I'm bothered. These members are the air supply device 7 described above. The injected air is stirred with the raw material 2 with the rotation of the fermenter 6, and fermentation of the raw material 2 is promoted.
【００２６】後部鏡板２５には排出扉２６が形成され、
その背部にはフード２７が配置されている。発酵槽２６
の中で生原料２は発酵しながら乾燥され、乾燥が一定度
まで進行すると乾燥原料１２となる。排出扉２６を開い
て乾燥原料１２を矢印ｂ方に従ってフード２７に移送す
る。A discharge door 26 is formed in the rear end plate 25,
A hood 27 is arranged at the back. Fermenter 26
The raw material 2 is dried while being fermented, and becomes a dry raw material 12 when the drying proceeds to a certain degree. The discharge door 26 is opened and the dry raw material 12 is transferred to the hood 27 in the direction of arrow b.
【００２７】次に、フード２７から矢印ｃ方向及び矢印
ｄ方向に従って投入フィーダ１４へと乾燥原料１２を移
送する。この投入フィーダ１４から乾燥原料１２を燃料
投入口４１に送り、燃料口４２から補助燃料を投入して
起動用バーナ４３により燃焼を開始する。Next, the dry raw material 12 is transferred from the hood 27 to the feeding feeder 14 in the directions of the arrows c and d. The dry feedstock 12 is sent from the input feeder 14 to the fuel input port 41, auxiliary fuel is input from the fuel port 42, and combustion is started by the starter burner 43.
【００２８】本実施形態において用いる燃焼装置１６は
循環流動型燃焼装置である。押込通風機４４により矢印
ｅ方向に空気を送りながら、主燃焼室４５内で乾燥燃料
１２を燃焼する。燃焼ガスや燃焼粉塵は砂４０とともに
主燃焼室４５を上昇し、ボイラ５１で蒸気を発生させ、
サイクロン燃焼室４６で砂４０と排ガスは上下に分流す
る。The combustion device 16 used in this embodiment is a circulating-flow type combustion device. The dry fuel 12 is burned in the main combustion chamber 45 while sending air in the direction of the arrow e by the forced draft fan 44. The combustion gas and the combustion dust rise in the main combustion chamber 45 together with the sand 40, and generate steam in the boiler 51.
In the cyclone combustion chamber 46, the sand 40 and the exhaust gas are divided vertically.
【００２９】この循環流動型の燃焼装置１６は、炉内で
の熱、空気、燃料の混合攪拌が極めて盛んであるため、
空気過剰率が低く、燃焼効率が極めて高い特性を有す
る。また、燃焼室４５全域で約８５０℃の均一な温度が
得られるため、低温燃焼・低空気過剰率・二段燃焼によ
り低ＮＯXが実現でき、しかも優れた混合攪拌により極
めて高効率の脱硫作用が発揮される。更に、完全燃焼に
よるダイオキシンの低減といったクリーンな排ガス特性
が得られる。従って、排ガス４７には固形成分は含まれ
るものの、公害ガス成分はほとんど含まれない。In the circulating fluid type combustion device 16, the mixing and stirring of heat, air and fuel in the furnace are extremely active.
It has characteristics of low excess air ratio and extremely high combustion efficiency. Further, since the uniform temperature of about 850 ° C. is obtained in the combustion chamber 45 throughout the low NO X can be achieved by low-temperature combustion, low excess air ratio, the two-stage combustion, moreover desulfurization of extremely high efficiency by better mixing and stirring Is exhibited. Further, clean exhaust gas characteristics such as reduction of dioxin by complete combustion can be obtained. Accordingly, the exhaust gas 47 contains solid components, but hardly contains pollutant gas components.
【００３０】砂４０は矢印で示すようにサイクロン運動
しながらサイクロン燃焼室４６を下降し、再び主燃焼室
４５の下端部にフィードバックされる。高温化した砂４
０は新たに投入される乾燥燃料１２を燃焼させ、以後同
様の過程を経る。排ガス４７はサイクロン燃焼室４６を
上昇し、熱交換室４８を下降して行く。The sand 40 descends in the cyclone combustion chamber 46 while performing cyclone motion as indicated by the arrow, and is fed back to the lower end of the main combustion chamber 45 again. Hot sand 4
A value of 0 burns newly supplied dry fuel 12, and the same process is performed thereafter. The exhaust gas 47 rises in the cyclone combustion chamber 46 and descends in the heat exchange chamber 48.
【００３１】熱交換室４８には熱交換器５３が配置され
ている。前記ボイラ５１にはボイラ給水ポンプ４９から
入力管５０を通して水が供給され、ボイラ５１で発生し
た蒸気は出力管５２を通して熱交換器５３に入る。この
熱交換器５３で蒸気は更に加熱され、高温高圧の蒸気が
タービン入力管５４へと出力される。A heat exchanger 53 is arranged in the heat exchange chamber 48. Water is supplied to the boiler 51 from a boiler feed pump 49 through an input pipe 50, and steam generated in the boiler 51 enters a heat exchanger 53 through an output pipe 52. The steam is further heated by the heat exchanger 53, and high-temperature and high-pressure steam is output to the turbine input pipe 54.
【００３２】高温高圧の蒸気は蒸気タービン２０ａを高
速回転させ、発電機２０ｂにより排ガスの熱エネルギー
を利用した発電が行われる。前述した発電装置２０はこ
の蒸気タービン２０ａと発電機２０ｂから構成される。
蒸気タービン２０ａから出た蒸気はまだかなりの高温と
高圧を有しているから、工場施設５５へ送られて熱源と
して再利用される。The high-temperature and high-pressure steam causes the steam turbine 20a to rotate at a high speed, and power is generated by the generator 20b using the heat energy of the exhaust gas. The above-described power generation device 20 includes the steam turbine 20a and the power generator 20b.
Since the steam from the steam turbine 20a still has a considerably high temperature and high pressure, it is sent to the factory facility 55 and reused as a heat source.
【００３３】前記排ガス４７は熱交換室４８を下降して
バグハウス５６に入り、固形成分は分離されて灰サイロ
５７に蓄積される。前記サイクロン燃焼室４６を砂４０
と一緒に下降した固形成分も矢印ｇ方向に灰サイロ５７
へと移送される。灰サイロ５７の中の灰（固形成分）は
回収され、再利用されたり汚泥として処理される。The exhaust gas 47 goes down the heat exchange chamber 48 and enters the baghouse 56, where the solid components are separated and accumulated in the ash silo 57. The cyclone combustion chamber 46 is sand 40
The solid component that has dropped together with the ash silo 57 in the direction of arrow g
Transferred to. The ash (solid component) in the ash silo 57 is collected and reused or treated as sludge.
【００３４】バグハウス５６で固形成分を分離した後、
清浄化された排ガス４７は誘引通風機５８により煙突５
９から大気中に放出される。また一部の排ガス４７は排
ガス再循環ファン６０により矢印ｈ方向に誘導され、矢
印ｅ方向に循環して主燃焼室４５の下部に入る。After separating the solid components in the baghouse 56,
The cleaned exhaust gas 47 is discharged from the chimney 5 by an induction ventilator 58.
9 to the atmosphere. A part of the exhaust gas 47 is guided by the exhaust gas recirculation fan 60 in the direction of arrow h, circulates in the direction of arrow e, and enters the lower part of the main combustion chamber 45.
【００３５】本発明は上記実施形態に限定されるもので
はなく、本発明の技術的思想を逸脱しない範囲における
種々の変形例、設計変更などをその技術的範囲内に包含
することは云うまでもない。The present invention is not limited to the above-described embodiment, and it is needless to say that various modifications and design changes within the technical scope of the present invention are included in the technical scope. Absent.
【００３６】[0036]
【発明の効果】請求項１の発明によれば、水分を含んだ
有機性廃棄物からなる生原料を発酵乾燥させて乾燥原料
にし、この乾燥原料を燃焼装置に投入して燃焼させるか
ら、補助燃料が少なくて済み、しかも排ガスは高温の熱
エネルギーを有しているから、発電や熱源などに再利用
できる。According to the first aspect of the present invention, a raw material comprising organic waste containing water is fermented and dried to obtain a dry raw material, and the dry raw material is introduced into a combustion device and burned. Since less fuel is required and the exhaust gas has high-temperature thermal energy, it can be reused for power generation and heat sources.
【００３７】請求項２の発明によれば、通気乾燥するに
際して送気と攪拌を行うから、生原料の発酵乾燥を促進
でき、しかも発生する悪臭を脱臭するから、環境を健全
に保持しながら生原料を乾燥することができる。According to the second aspect of the present invention, air supply and agitation are performed during aeration drying, so that fermentation and drying of the raw material can be promoted, and the generated bad odor is deodorized. Raw materials can be dried.
【００３８】請求項３の発明によれば、発生した排ガス
の高温の熱エネルギーを電気エネルギー等の有効エネル
ギーに転換する第4工程を設けたから、工場や地域に電
気や熱などの有効エネルギーを供給でき、焼却システム
と環境保全との一体化を促進することができる。According to the third aspect of the present invention, since the fourth step of converting high-temperature heat energy of the generated exhaust gas into effective energy such as electric energy is provided, the effective energy such as electricity and heat is supplied to factories and regions. And promote the integration of the incineration system with environmental protection.
【００３９】請求項４の発明によれば、燃焼装置として
循環流動型焼却炉を用いているから、ＮＯＸやＳＯＸ等
の公害ガスの発生を防止でき、環境に優しく地域に適合
した焼却システムを構築できる。According to the fourth aspect of the present invention, since a circulating fluid incinerator is used as the combustion device, generation of pollutant gases such as NOx and SOX can be prevented, and an environment-friendly incineration system adapted to the area is constructed. it can.
【図１】本発明に係る有機性廃棄物の焼却方法のブロッ
クダイアグラムを示している。FIG. 1 shows a block diagram of an organic waste incineration method according to the present invention.
【図２】本発明に係る有機性廃棄物の焼却方法の一実施
形態を示す概略装置図である。FIG. 2 is a schematic diagram illustrating an embodiment of an organic waste incineration method according to the present invention.
【図３】有機性廃棄物を燃焼させる第1従来例のブロッ
クダイアグラムである。FIG. 3 is a block diagram of a first conventional example for burning organic waste.
【図４】有機性廃棄物を燃焼させる第２従来例のブロッ
クダイアグラムである。FIG. 4 is a block diagram of a second conventional example for burning organic waste.
２は生原料、４は熱風乾燥装置、５は通気乾燥装置、６
は発酵槽、７は送気装置、８は攪拌装置、１０は脱臭装
置、１２は乾燥原料、１４は投入フィーダ、１６は燃焼
装置、１８は排ガス処理装置、２０は発電装置、２０ａ
は蒸気タービン、２０ｂは発電機、２１は搬入口、２２
はスクリューフィーダ、２４はモータ、２５は後部鏡
板、２６は排出扉、２７はフード、２９は通風機、３０
は導入管、３１は自在管、３２は分配弁、３３ａ・３３
ｂは空気送入ノズル、３３ｃはノズル孔、４０は砂、４
１は燃料投入口、４２は燃焼口、４３は起動用バーナ、
４４は押込通風機、４５は主燃焼室、４６はサイクロン
燃焼室、４７は排ガス、４８は熱交換室、４９はボイラ
給水ポンプ、５０は入力管、５１はボイラ、５２は出力
管、５３は熱交換器、５４はタービン入力管、５５は工
場施設、５６はバグハウス、５７は灰サイロ、５８は誘
引通風機、５９は煙突、６０は排ガス再循環ファン。2 is a raw material, 4 is a hot air dryer, 5 is a through-air dryer, 6
Is a fermenter, 7 is an air supply device, 8 is a stirring device, 10 is a deodorizing device, 12 is a dry raw material, 14 is an input feeder, 16 is a combustion device, 18 is an exhaust gas treatment device, 20 is a power generation device, 20a
Is a steam turbine, 20b is a generator, 21 is a loading port, 22
Is a screw feeder, 24 is a motor, 25 is a rear end plate, 26 is a discharge door, 27 is a hood, 29 is a ventilator, 30
Is an introduction pipe, 31 is a universal pipe, 32 is a distribution valve, 33a / 33
b is an air inlet nozzle, 33c is a nozzle hole, 40 is sand,
1 is a fuel inlet, 42 is a combustion port, 43 is a starter burner,
44 is a push-in ventilator, 45 is a main combustion chamber, 46 is a cyclone combustion chamber, 47 is an exhaust gas, 48 is a heat exchange chamber, 49 is a boiler feed pump, 50 is an input pipe, 51 is a boiler, 52 is an output pipe, and 53 is an output pipe. A heat exchanger, 54 is a turbine input tube, 55 is a factory facility, 56 is a bag house, 57 is an ash silo, 58 is an induction ventilator, 59 is a chimney, and 60 is an exhaust gas recirculation fan.
───────────────────────────────────────────────────── 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） Ｆ２３Ｇ 5/30 ＺＡＢ Ｂ０９Ｂ 3/00 ３０３Ｍ Ｆターム(参考） 3K065 AA11 AB01 AC01 AC02 AC11 BA04 CA11 4D002 AB02 BA05 BA12 BA17 EA05 GA03 GB03 HA01 HA08 4D004 AA03 BA03 CA15 CA19 CA28 CA42 CA48 CB36 CC02 4G075 AA37 AA43 AA44 AA63 BA06 BB02 BD11 CA02 CA45 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F23G 5/30 ZAB B09B 3/00 303M F-term (Reference) 3K065 AA11 AB01 AC01 AC02 AC11 BA04 CA11 4D002 AB02 BA05 BA12 BA17 EA05 GA03 GB03 HA01 HA08 4D004 AA03 BA03 CA15 CA19 CA28 CA42 CA48 CB36 CC02 4G075 AA37 AA43 AA44 AA63 BA06 BB02 BD11 CA02 CA45
Claims (4)
料２を通気乾燥装置５に投入する第1工程と、この通気
乾燥装置５内で生原料２を発酵乾燥させて乾燥原料１２
にする第２工程と、この乾燥原料１２を燃焼装置１６に
投入して燃焼させる第３工程から構成されることを特徴
とする有機性廃棄物の焼却方法。1. A first step in which a raw material 2 comprising organic waste containing water is introduced into a through-drying device 5, and the raw material 2 is fermented and dried in the through-drying device 5 to obtain a dry raw material 12.
And a third step in which the dry raw material 12 is charged into the combustion device 16 and burned.
する発酵槽６と、この発酵槽６に空気を送気する送気装
置７と、発酵槽６内の生原料２を攪拌する攪拌装置８
と、発生した臭気を脱臭する脱臭装置１０を具備する請
求項１に記載の有機性廃棄物の焼却方法。2. The aeration drying device 5 stirs the fermenter 6 for accumulating the raw material 2, an air supply device 7 for supplying air to the fermenter 6, and the raw material 2 in the fermenter 6. Stirrer 8
The organic waste incineration method according to claim 1, further comprising a deodorizing device 10 for deodorizing generated odor.
スの高温の熱エネルギーを電気エネルギー等の有効エネ
ルギーに転換する第４工程を含む請求項１に記載の有機
性廃棄物の焼却方法。3. The organic waste incineration method according to claim 1, further comprising a fourth step of converting high-temperature thermal energy of the exhaust gas generated in the incinerator 16 into effective energy such as electric energy.
ある請求項１に記載の有機性廃棄物の焼却方法。4. The organic waste incineration method according to claim 1, wherein the combustion device 16 is a circulating fluid incinerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000373637A JP2002174412A (en) | 2000-12-08 | 2000-12-08 | Method of incinerating organic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000373637A JP2002174412A (en) | 2000-12-08 | 2000-12-08 | Method of incinerating organic waste |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002174412A true JP2002174412A (en) | 2002-06-21 |
Family
ID=18842985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000373637A Pending JP2002174412A (en) | 2000-12-08 | 2000-12-08 | Method of incinerating organic waste |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002174412A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006110540A (en) * | 2004-09-16 | 2006-04-27 | Takuma Co Ltd | Efficient biogas recovery system using microorganism |
| JP2009183830A (en) * | 2008-02-05 | 2009-08-20 | Takahashi Kikan:Kk | System for treating waste |
| JP5033928B1 (en) * | 2011-11-08 | 2012-09-26 | 枝幸町 | Treatment method for organic industrial waste |
| JP2013253720A (en) * | 2012-06-06 | 2013-12-19 | Takuma Co Ltd | Staircase type incinerator |
| CN105032887A (en) * | 2015-06-26 | 2015-11-11 | 司伟东 | Ecological construction system for municipal garbage comprehensive disposal and utilization and disposal and utilization method |
| WO2020136824A1 (en) * | 2018-12-27 | 2020-07-02 | 株式会社下瀬微生物研究所 | Treatment device for palm oil mill residue, and treatment method therefor |
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| JPS62252815A (en) * | 1986-04-23 | 1987-11-04 | Itoo Yookadou:Kk | Garbage incineration and fermentation device |
| JPH10281425A (en) * | 1997-04-04 | 1998-10-23 | Osaka Gas Eng Kk | Treatment facility |
| JP2000146116A (en) * | 1998-11-11 | 2000-05-26 | Electric Power Dev Co Ltd | Combustion apparatus and corrosion preventing method of heat exchanger tube thereof |
| JP2002086110A (en) * | 2000-09-14 | 2002-03-26 | Toshiba Corp | System for treating waste |
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| JPS62252815A (en) * | 1986-04-23 | 1987-11-04 | Itoo Yookadou:Kk | Garbage incineration and fermentation device |
| JPH10281425A (en) * | 1997-04-04 | 1998-10-23 | Osaka Gas Eng Kk | Treatment facility |
| JP2000146116A (en) * | 1998-11-11 | 2000-05-26 | Electric Power Dev Co Ltd | Combustion apparatus and corrosion preventing method of heat exchanger tube thereof |
| JP2002086110A (en) * | 2000-09-14 | 2002-03-26 | Toshiba Corp | System for treating waste |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006110540A (en) * | 2004-09-16 | 2006-04-27 | Takuma Co Ltd | Efficient biogas recovery system using microorganism |
| JP2009183830A (en) * | 2008-02-05 | 2009-08-20 | Takahashi Kikan:Kk | System for treating waste |
| JP5033928B1 (en) * | 2011-11-08 | 2012-09-26 | 枝幸町 | Treatment method for organic industrial waste |
| JP2013099710A (en) * | 2011-11-08 | 2013-05-23 | Esashicho | Method for treating organic industrial waste |
| JP2013253720A (en) * | 2012-06-06 | 2013-12-19 | Takuma Co Ltd | Staircase type incinerator |
| CN105032887A (en) * | 2015-06-26 | 2015-11-11 | 司伟东 | Ecological construction system for municipal garbage comprehensive disposal and utilization and disposal and utilization method |
| WO2020136824A1 (en) * | 2018-12-27 | 2020-07-02 | 株式会社下瀬微生物研究所 | Treatment device for palm oil mill residue, and treatment method therefor |
| WO2020137003A1 (en) * | 2018-12-27 | 2020-07-02 | 株式会社下瀬微生物研究所 | Treatment device for palm oil mill residue, and treatment method therefor |
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