JPH02229888A - Production of solid fuel - Google Patents
Production of solid fuelInfo
- Publication number
- JPH02229888A JPH02229888A JP24030889A JP24030889A JPH02229888A JP H02229888 A JPH02229888 A JP H02229888A JP 24030889 A JP24030889 A JP 24030889A JP 24030889 A JP24030889 A JP 24030889A JP H02229888 A JPH02229888 A JP H02229888A
- Authority
- JP
- Japan
- Prior art keywords
- solid fuel
- hot air
- oil
- drying chamber
- industrial waste
- 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
- 239000004449 solid propellant Substances 0.000 title claims abstract description 55
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 239000002440 industrial waste Substances 0.000 claims abstract description 43
- 238000001035 drying Methods 0.000 claims abstract description 39
- 239000003973 paint Substances 0.000 claims abstract description 16
- 239000010802 sludge Substances 0.000 claims abstract description 14
- 239000010801 sewage sludge Substances 0.000 claims abstract description 8
- 239000002023 wood Substances 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims description 33
- 239000002893 slag Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000010893 paper waste Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 18
- 238000000034 method Methods 0.000 description 9
- 239000000446 fuel Substances 0.000 description 8
- 238000011084 recovery Methods 0.000 description 6
- 239000004094 surface-active agent Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000001877 deodorizing effect Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は固形燃料製造方法に関し、その目的は産業廃
棄物から高カロリーの固形燃料を低廉に製造できる固形
燃料製造方法の提供にある。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a solid fuel production method, and its purpose is to provide a solid fuel production method that can produce high-calorie solid fuel from industrial waste at low cost.
（従来技術及びその問題点）
従来、下水処理に伴って生じる下水汚泥や活性汚泥は、
水分含有量が多いため、そのまま重油とともに焼却する
ことができず、一旦、乾燥した後に他の産業廃棄物と共
に焼却するか、或いは埋め立て用に用いるかのいずれか
で処理が行われているが、焼却用の燃料費、埋め立て地
への運搬費等として処理には多大のコストが必要とされ
る。(Prior art and its problems) Conventionally, sewage sludge and activated sludge generated during sewage treatment are
Due to its high water content, it cannot be incinerated as is along with heavy oil, and is treated by either incinerating it with other industrial waste after drying it or using it for landfill. A large amount of cost is required for disposal, including fuel costs for incineration and transportation costs to landfill sites.
したがって、このような下水汚泥や活性汚泥あるいは産
業廃棄物を低コストで有効利用できる手段の創出が望ま
れている。Therefore, it is desired to create a means for effectively utilizing such sewage sludge, activated sludge, or industrial waste at low cost.
汚泥等の有効利用としては、これらを加工して固形燃料
とすることが行なわれている。One way to effectively utilize sludge and the like is to process it into solid fuel.
汚泥等の産業廃棄物から固形燃料を製造する方法として
は、例えば特開昭５２−１３７４０１号公報に開示のも
のがあるが、ここでの固形燃料の製造は産業廃棄物から
無機質を分離する工程の後、有機質を混合し、この後、
この混合された有機質を脱水し、さらに乾燥機で乾燥さ
せるものである。A method for producing solid fuel from industrial waste such as sludge is disclosed in, for example, Japanese Patent Application Laid-Open No. 137401/1982, but the production of solid fuel here involves a process of separating inorganic substances from industrial waste. After that, mix the organic matter, and after this,
This mixed organic substance is dehydrated and further dried in a drier.
しかし、この方法では出発物質を一般的産業廃棄物とし
ており、製造された固形燃料は一般にカロリーの低いバ
ルプ状のものであるため、燃焼効率の悪い固形燃料しか
製造できない。However, in this method, the starting material is general industrial waste, and the solid fuel produced is generally in the form of a bulb with a low calorie, so that only solid fuel with poor combustion efficiency can be produced.
（解決課題）
そこで、この従来技術の問題点に照らし、高力口りーの
固形燃料を製造しようとすれば、出発物質として油滓や
塗料滓といった高カロリーの産業廃棄物を使用する必要
があるという提案がなされた。(Issues to be solved) Therefore, in light of the problems of this conventional technology, if one attempts to produce a high-strength solid fuel, it is necessary to use high-calorie industrial waste such as oil soapstock or paint slag as a starting material. A proposal was made.
ところが、この提案方法では実際は企図する高カロリー
燃料とはならなかった。However, this proposed method did not actually produce the intended high-calorie fuel.
そこで、本願発明者らはこの原因を究明すべく長年に亘
り鋭意研究を続けた二
その結果、驚くべきことに次の事実が解明された。Therefore, the inventors of the present application have continued to conduct intensive research for many years in order to find out the cause of this problem, and as a result, surprisingly, the following fact has been elucidated.
まず、得られた燃料の含水率が高くその原因を解明した
。First, the cause of the high moisture content of the obtained fuel was clarified.
すなわち、油滓や塗料滓には界面活性剤が多く含まれて
いるため吸水性が強い。That is, soapstock and paint slag contain a large amount of surfactant and therefore have strong water absorption properties.
従って、これら浦滓や塗料滓をその他の産業廃棄物と混
合した後に脱水すれば、前記界面活性剤に産業廃棄物中
の水分が取り込まれていくため混合物全体の脱水効率が
悪く、従って乾燥機内でこれら不充分な脱水状態の産業
廃棄物を乾燥させねばならず乾燥効率が極めて悪くなり
、結果得られた固形燃料の含水率が非常に高くなるとい
う点である。Therefore, if these water slags and paint slags are mixed with other industrial wastes and then dehydrated, the moisture in the industrial wastes will be taken up by the surfactant, resulting in poor dehydration efficiency of the entire mixture, and therefore These insufficiently dehydrated industrial wastes must be dried, resulting in extremely poor drying efficiency and resulting solid fuel having a very high moisture content.
本願発明者は上記脱水時の欠点の原因を解明するととも
に乾燥工程の従来技′術にも着目した。The inventor of the present application has elucidated the cause of the above-mentioned drawbacks during dehydration and has also focused on the conventional technology of the drying process.
即ち、乾燥機の熱風は使用後に全て外部へ放出されてい
たため環境の悪化を招き、乾燥機への熱風の供給効率か
らみても無駄が多く、固形燃料の含水率の低下に対して
は効果が少なかった。In other words, all the hot air from the dryer was discharged outside after use, which caused environmental deterioration, wasted energy in terms of the efficiency of supplying hot air to the dryer, and was not effective in reducing the moisture content of solid fuel. There weren't many.
しかも、この従来の乾燥工程の欠点を解消する改良方法
、即ち乾燥機で使用された熱風を循環させ、加熱炉にて
再加熱させて再使用する従来技術、例えば特開昭６０−
１７１３８２号公報に開示にも大いなる欠点が存在する
ことを見出した。In addition, there are improved methods to overcome the drawbacks of this conventional drying process, namely, conventional techniques in which the hot air used in the dryer is circulated, reheated in a heating furnace, and reused, such as JP-A-60
It has been found that the disclosure in Japanese Patent No. 171382 also has a major drawback.
従来技術は熱発生炉で生じる熱風をロータリキルンに送
り、この［１−タリキルンで使用された熱風を悪臭ガス
送出管を介して前記熱発生炉へ循環させるものであるが
、この際、前記悪臭ガス送出管は熱交換炉内を通ってい
るため使用済熱風はこの熱交換炉で予備的に加熱され、
前記悪臭ガス送出管やロータリキルンは前記熱交換室内
を通っているからこの熱交換室の熱によって外面から熱
せられこの熱によって経時的に劣化したり、熱交換室内
の排ガスによって腐食し易いという欠点があった。The conventional technology sends hot air generated in a heat generating furnace to a rotary kiln, and circulates the hot air used in the rotary kiln to the heat generating furnace via a malodorous gas delivery pipe. Since the gas delivery pipe passes through a heat exchange furnace, the used hot air is preheated in this heat exchange furnace.
Since the foul-smelling gas delivery pipe and the rotary kiln pass through the heat exchange chamber, they are heated from the outside by the heat of the heat exchange chamber, and are susceptible to deterioration over time due to this heat and corrosion due to the exhaust gas in the heat exchange chamber. was there.
本願発明者はこの乾燥工程の欠点も同時に解決せんとし
た。The inventor of the present application also attempted to solve the drawbacks of this drying process.
（課題を解決するための手段）
この発明は、紙滓、木屑、ゴム屑、塗料滓、下水汚泥、
活性汚泥から選択された第一産業廃棄物と塗料滓一油泥
から選択された第二産業廃棄物とを個別に脱水し、この
後、前記第一、第二の産業廃棄物を混練し、この混練物
をオイル燃焼炉から熱風を供給する乾燥室で乾燥処理し
て取出口から固形燃料として取出すとともにこの乾燥室
の使用済熱風を排出し、この使用済熱風の一部を大気中
に放出し、残部を前記乾燥室から取出された固形燃料の
一部を燃焼させる固形燃料燃焼炉に送りこの固形燃料燃
焼炉でこの使用済熱風を予備加熱し、予熱風を前記オイ
ル燃焼炉へ供給する固形燃料製造方法により上記問題点
を解決する。(Means for Solving the Problems) The present invention provides waste paper, wood chips, rubber chips, paint slag, sewage sludge,
The first industrial waste selected from activated sludge and the second industrial waste selected from paint slag and oil sludge are dehydrated separately, and then the first and second industrial wastes are kneaded, and this The kneaded material is dried in a drying chamber supplied with hot air from an oil-burning furnace, and is taken out as solid fuel from an outlet.The spent hot air in this drying chamber is also discharged, and a portion of this spent hot air is released into the atmosphere. , the remaining part is sent to a solid fuel combustion furnace that burns a part of the solid fuel taken out from the drying chamber, the spent hot air is preheated in this solid fuel combustion furnace, and the preheated air is supplied to the oil combustion furnace. The above problems are solved by the fuel manufacturing method.
（実施例） この発明の実施例を図面に基づいて説明する。(Example) Embodiments of the invention will be described based on the drawings.
図面はこの発明方法で使用される固形燃料製造装置を説
明する図で、図中（１）は固形燃料製造装置を示す。The drawing is a diagram illustrating a solid fuel manufacturing apparatus used in the method of the present invention, and (1) in the figure shows the solid fuel manufacturing apparatus.
まず、固形燃料製造装置（１）の構成を説明する。First, the configuration of the solid fuel manufacturing apparatus (1) will be explained.
（２２）は脱水機であり、含水率の高い産業廃棄物を予
め脱水するものである。(22) is a dehydrator, which preliminarily dehydrates industrial waste having a high moisture content.
（２）はミキサーであり、紙滓、木屑、ゴム屑、塗料滓
、下水汚泥、活性汚泥から選択された産業廃棄物（３）
（以下、第一産業廃棄物（３）と言う）と塗料滓、油泥
から選択された産業廃棄物《４）（以下、第二産業廃棄
物（４）と言う）とを混練し、て混練物とするものであ
る。(2) is a mixer, and industrial waste (3) is selected from paper slag, wood chips, rubber chips, paint slag, sewage sludge, and activated sludge.
(hereinafter referred to as primary industrial waste (3)) and industrial waste selected from paint slag and oil mud (4) (hereinafter referred to as secondary industrial waste (4)). It is something that is made into a thing.
この場合、前記脱水機（２２）によって第一、第二産業
廃棄物（３） （４）の含水率を個別に低下させたもの
を混練させて、後の乾燥処理を容易にする。In this case, the first and second industrial wastes (3) and (4) whose water content has been individually reduced by the dehydrator (22) are kneaded to facilitate the subsequent drying process.
ミキサー（２）は一次混練ミキサー（５）と二次混練ミ
キサー（６）とを一連に接続したものを用いることがで
きる。The mixer (2) may be a combination of a primary kneading mixer (5) and a secondary kneading mixer (6) connected in series.
（７）は前記ミキサー（２》で得られた混線物を収納状
態で乾燥処理する乾燥室である。(7) is a drying chamber in which the mixed material obtained in the mixer (2) is dried in a stored state.
乾燥室（７）は２個並設して用いることができる。Two drying chambers (7) can be used in parallel.
乾燥室（７）に前記混線物に熱風を供給するオイル燃焼
炉（８）が連通されており、乾燥室《７》内の混練物が
オイル燃焼炉（８）から供給される熱風との接触で乾燥
処理され、固形燃料とされる。An oil combustion furnace (8) that supplies hot air to the mixed material is connected to the drying chamber (7), and the mixed material in the drying chamber (7) comes into contact with the hot air supplied from the oil combustion furnace (8). It is dried and turned into solid fuel.
（９）はオイルタンク、αωはボンブ、ａＤはバーナー
（２３）は外気吸入パイプ、（２４）は熱風供給路、（
２５）は熱風供給ファンである。(9) is an oil tank, αω is a bomb, aD is a burner (23) is an outside air suction pipe, (24) is a hot air supply path, (
25) is a hot air supply fan.
乾燥室（７）には前記熱風との接触で乾燥処理された前
記混練物を固形燃料として取り出す燃料取出口α２が形
成されている。A fuel outlet α2 is formed in the drying chamber (7) to take out the kneaded material dried by contact with the hot air as solid fuel.
乾燥室（７）からは前記混練物と接触した後の使用済熱
風を排出する排出路ａ３が延出され、この排出路０３の
先端からは使用済熱風の一部を大気中に放出する放出路
αΦと使用済熱風の残部を回収する回収路α９とが分岐
されている。Extending from the drying chamber (7) is a discharge passage a3 for discharging the spent hot air after contact with the kneaded material, and a discharge passage a3 for discharging a portion of the spent hot air into the atmosphere from the tip of this discharge passage 03. The path αΦ is branched into a recovery path α9 for recovering the remainder of the spent hot air.
この放出路Ｉは脱臭塔（１ｅを介して大気中に開放され
ており、使用済熱風の一部が脱臭塔ａ６１で脱臭されて
大気中に放出される。This discharge path I is open to the atmosphere via a deodorizing tower (1e), and a portion of the used hot air is deodorized in the deodorizing tower a61 and released into the atmosphere.
脱臭塔ａタとしてはアルカリ洗浄式のものが好適に用い
られる。As the deodorizing tower, an alkaline cleaning type is preferably used.
回収路Ｃ１Ｓの先端には前記回収された使用済熱風の残
部を予熱して予熱風を発生させる燃焼炉であって、前記
乾燥室（７）から取出された固形燃料の一部を燃焼させ
る固形燃料燃焼炉α刀が連通連結されており、前記回収
された使用済熱風が乾燥室（７）で得られた前記固形燃
料の一部を用いて予熱され、予熱風とされる。At the tip of the recovery path C1S is a combustion furnace that preheats the remaining part of the recovered spent hot air to generate preheated air, and a combustion furnace that burns a part of the solid fuel taken out from the drying chamber (7). A fuel combustion furnace is connected in communication, and the recovered spent hot air is preheated using a portion of the solid fuel obtained in the drying chamber (7) to become preheated air.
固形燃料燃焼炉αフからは前記オイル燃焼炉（８）に予
熱風を供給する予熱風供給炉ａｍが延出されており、予
め高温に加熱されている予熱風はオイル燃焼炉（８）で
は僅かな加熱で高温の熱風となり、乾燥室（７）に再供
給される。A preheated air supply furnace am that supplies preheated air to the oil combustion furnace (8) extends from the solid fuel combustion furnace α, and the preheated air that has been previously heated to a high temperature is supplied to the oil combustion furnace (8). With slight heating, it becomes high-temperature hot air and is re-supplied to the drying chamber (7).
固形燃料燃焼炉０からは別に予熱風供給路（１８に至る
予熱がバイパス路ａ９を延出させ、この予熱風バイパス
ａ！ｉ途中にボイラ■及び吸引ファン（２ｌ）を介設し
てもよく、かかる場合には、固形燃料燃焼炉α力からの
予熱風が更にボイラ■で加熱され、更に高温の予熱風と
なり、オイル燃焼炉（８）では更に僅かな加熱で高温の
熱風となる。Separately from the solid fuel combustion furnace 0, a preheating air supply path (18) may be extended with a bypass path a9, and a boiler ■ and a suction fan (2L) may be interposed in the middle of this preheating air bypass a!i. In such a case, the preheated air from the solid fuel combustion furnace α is further heated in the boiler (1) to become even higher temperature preheated air, and further heated slightly in the oil combustion furnace (8) to become high temperature hot air.
この発明方法で使用する固形燃料製造装置の構成は以上
の通りであり、次にこの発明方法を説明する。The structure of the solid fuel production apparatus used in the method of this invention is as described above, and next, the method of this invention will be explained.
まず脱水機（２２）によって前記第一、第二産業廃棄物
（３） （４）を個別に脱水する。First, the first and second industrial wastes (3) and (4) are individually dehydrated using a dehydrator (22).
その理由は第二産業廃棄物（４）は塗料滓、油滓といっ
た界面活性剤を含有する廃棄物であるため、吸水性が強
く、これらを第一産業廃棄物（３）と一緒に脱水しよう
とすれば前記界面活性剤によって第一産業廃棄物（３）
内の水分が取り込まれてしてまい脱水効率が悪化するか
らである。The reason is that secondary industrial waste (4) is waste that contains surfactants such as paint slag and oil slag, so it has strong water absorption, so it is necessary to dehydrate it together with primary industrial waste (3). If so, the surfactant will cause primary industrial waste (3)
This is because moisture inside the container is taken in and the dehydration efficiency deteriorates.
前記個別の脱水の後、これら第一、第二産業廃棄物（３
） （４）をミキサー（２）に送り、この中で混練する
。After the individual dehydration, these primary and secondary industrial wastes (3
) (4) is sent to mixer (2) and kneaded therein.
ミキサー（２）で混練した第一、第二産業廃棄物（３）
（４）が乾燥室（７）内に収納する。Primary and secondary industrial waste (3) mixed with mixer (2)
(4) is stored in the drying chamber (7).
乾燥室（７）内の第一、第二産業廃棄物（３） （４）
の混線物をオイル燃焼炉（８）から供給された熱風と接
触させることによって乾燥し、取出口α２から固形燃料
として取り出す。First and second industrial waste (3) in the drying room (7) (4)
The mixed material is dried by contacting with hot air supplied from the oil combustion furnace (8), and is taken out as solid fuel from the outlet α2.
また、乾燥室（７）内の産業廃棄物の混練物と接触した
後の使用済熱風を乾燥室（７）の排出路ａ３から排出す
る。Further, the used hot air that has come into contact with the kneaded industrial waste in the drying chamber (7) is discharged from the discharge path a3 of the drying chamber (7).
排出された使用済熱風の一部を前記排出路ａ３に連通ず
る放出路Ｑ〜から大気中に放出する。A part of the discharged used hot air is discharged into the atmosphere from the discharge passage Q~ which communicates with the discharge passage a3.
尚、この使用済熱風は水分を伴っている。Note that this used hot air is accompanied by moisture.
また、使用済熱風は悪臭成分を伴っているから放出され
る際に脱臭塔αｅを通過して大気中に放出する。Furthermore, since the used hot air is accompanied by malodorous components, it passes through the deodorizing tower αe and is released into the atmosphere when it is released.
使用済熱風の残部は前記排出路Ｃｌ３に連通する回収路
ａ９を通る。The remainder of the spent hot air passes through a recovery path a9 that communicates with the discharge path Cl3.
この使用済熱風の残部をこの回収路ａ９を介して固形燃
料燃焼炉α力へ送りこの固形燃料燃焼炉０７｝で予備加
熱する。The remainder of this spent hot air is sent to the solid fuel combustion furnace α through this recovery path a9 and is preheated in this solid fuel combustion furnace 07}.
固形燃料燃焼炉ａ力では前記乾燥室（７）から取り出さ
れた固形燃料の一部を燃焼させて予備加熱のための熱を
発生させている。In the solid fuel combustion furnace a part of the solid fuel taken out from the drying chamber (7) is burned to generate heat for preheating.
この固形燃料燃焼炉＋１７１で予備加熱した予備熱を予
熱風供給路Ｏｇによって前記オイル供給炉（８）へ供給
する。Preheat preheated in this solid fuel combustion furnace +171 is supplied to the oil supply furnace (8) through a preheated air supply path Og.
（発明の効果）
この発明は、紙滓、木屑、ゴム屑、塗料滓、下水汚泥、
活性汚泥から選択された第一産業廃棄物と塗料滓、油泥
から選択された第二産業廃棄物とを個別に脱水し、この
後、前記第一、第二の産業廃棄物を混練し、この混線物
をオイル燃焼炉から熱風を供給する乾燥室で乾燥処理し
て取出口から固形燃料として取出すとともにこの乾燥室
の使用済熱風を排出し、この使用済熱風の一部を大気中
に放出し、残部を前記乾燥室から取出された固形燃料の
一部を燃焼させる固形燃料燃焼炉に送りこの固形燃料燃
焼炉でこの使用済熱風を予備加熱し、予熱風を前記オイ
ル燃焼炉へ供給する固形燃料製造方法であるから以下の
効果を奏する。(Effect of the invention) This invention can be applied to paper slag, wood chips, rubber scraps, paint slag, sewage sludge,
The first industrial waste selected from activated sludge and the second industrial waste selected from paint slag and oil sludge are dehydrated separately, and then the first and second industrial wastes are kneaded, and this The mixed material is dried in a drying chamber supplied with hot air from an oil-burning furnace, and taken out as solid fuel from the outlet.The spent hot air in this drying chamber is also discharged, and a portion of this spent hot air is released into the atmosphere. , the remaining part is sent to a solid fuel combustion furnace that burns a part of the solid fuel taken out from the drying chamber, the spent hot air is preheated in this solid fuel combustion furnace, and the preheated air is supplied to the oil combustion furnace. Since it is a fuel manufacturing method, it has the following effects.
下水汚泥等の第一産業廃棄物と塗料滓等の界面活性剤を
含んだ第二産業廃棄物とを別個に脱水した後、混練する
ので、充分に脱水した後に混練することになり、乾燥機
での乾燥効率が良好なものとなる。Primary industrial waste such as sewage sludge and secondary industrial waste containing surfactants such as paint sludge are dehydrated separately and then kneaded. The drying efficiency becomes good.
製造された固形燃料は塗料滓等のカロリーの高い産業廃
棄物を含むので燃焼効率に優れている。The produced solid fuel has excellent combustion efficiency because it contains high-calorie industrial waste such as paint slag.
また、産業廃棄物の混練物と接触した後の使用済熱風の
一部を固形燃料燃焼炉へ回収し、これを予熱してオイル
燃焼炉に導入し、さらに再加熱して再度、産業廃棄物を
乾燥処理する熱風として用いられるので、オイル燃焼炉
には予め高温となった予熱風が導入され、オイル燃焼炉
では僅かに加熱するのみで足り、高価なオイルの使用量
が削減できる。In addition, a part of the spent hot air that has come into contact with the industrial waste mixture is collected into the solid fuel combustion furnace, preheated and introduced into the oil combustion furnace, and then reheated and recycled again. Since it is used as hot air for drying, preheated air that has reached a high temperature in advance is introduced into the oil-burning furnace, and the oil-burning furnace only needs to be slightly heated, reducing the amount of expensive oil used.
しかも固形燃料燃焼炉では製品である安価な固形燃料の
一部を使用することができ、全体にかかる燃料費が安く
なり、製造コストの低い固形燃料が得られる。Moreover, in the solid fuel combustion furnace, a part of the inexpensive solid fuel that is a product can be used, reducing the overall fuel cost and producing solid fuel with low manufacturing cost.
使用済熱風を予備加熱する手段として前記固形燃料燃焼
炉が用いられるので、従来のように乾燥室や回収路を熱
交換室で囲繞してこれら乾燥室や回収路を外部から熱す
る際に、乾燥室あるいは回収路の外壁が腐食、熱劣化す
るといった問題がない。Since the solid fuel combustion furnace is used as a means for preheating the spent hot air, when the drying chamber and recovery path are surrounded by a heat exchange chamber and heated from the outside as in the conventional case, There is no problem of corrosion or thermal deterioration of the outer wall of the drying room or recovery channel.
第１図はこの発明方法で使用する固形燃料製造装置を説
明する図である。
（１）・・・固形燃料製造装置 （２）・・・ミキサー
（３）・・・第一産業廃棄物 （４）・・・第二産業廃
棄物（７）・・・乾燥室 （８）・・・オイル
燃焼炉（ｌ２）・・・取出口 （１７）・・・
固形燃料燃焼炉（２２）・・・脱水機
第 １
図
代理人 弁理士 清 原 義 博FIG. 1 is a diagram illustrating a solid fuel manufacturing apparatus used in the method of this invention. (1)...Solid fuel production equipment (2)...Mixer (3)...Primary industrial waste (4)...Second industrial waste (7)...Drying room (8) ...Oil combustion furnace (l2)...Outlet (17)...
Solid fuel combustion furnace (22)...Dehydrator Figure 1 Agent: Yoshihiro Kiyohara, patent attorney
Claims (1)
泥から選択された第一産業廃棄物と塗料滓、油泥から選
択された第二産業廃棄物とを個別に脱水し、この後、前
記第一、第二の産業廃棄物を混練し、この混練物をオイ
ル燃焼炉から熱風を供給する乾燥室で乾燥処理して取出
口から固形燃料として取出すとともにこの乾燥室の使用
済熱風を排出し、この使用済熱風の一部を大気中に放出
し、残部を前記乾燥室から取出された固形燃料の一部を
燃焼させる固形燃料燃焼炉に送りこの固形燃料燃焼炉で
この使用済熱風を予備加熱し、予熱風を前記オイル燃焼
炉へ供給する固形燃料製造方法。(1) Separately dewater the primary industrial waste selected from paper slag, wood chips, rubber scraps, paint slag, sewage sludge, and activated sludge and the secondary industrial waste selected from paint slag and oil sludge. After that, the first and second industrial wastes are kneaded, and this kneaded material is dried in a drying chamber that supplies hot air from an oil combustion furnace, and is taken out as solid fuel from an outlet, and the spent hot air in this drying chamber is A part of this spent hot air is discharged into the atmosphere, and the remaining part is sent to a solid fuel combustion furnace that burns a part of the solid fuel taken out from the drying chamber. A solid fuel manufacturing method that preheats hot air and supplies the preheated air to the oil combustion furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24030889A JPH02229888A (en) | 1989-09-16 | 1989-09-16 | Production of solid fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24030889A JPH02229888A (en) | 1989-09-16 | 1989-09-16 | Production of solid fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02229888A true JPH02229888A (en) | 1990-09-12 |
Family
ID=17057527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24030889A Pending JPH02229888A (en) | 1989-09-16 | 1989-09-16 | Production of solid fuel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02229888A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001049813A1 (en) * | 1999-12-30 | 2001-07-12 | Gert Hjort Jensen | Method for the use of powdered material |
| JP2006015174A (en) * | 2004-06-30 | 2006-01-19 | Maezawa Ind Inc | Method and apparatus for sludge treatment |
| CN104250573A (en) * | 2014-09-19 | 2014-12-31 | 沈阳建筑大学 | Fuel and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137401A (en) * | 1976-05-13 | 1977-11-16 | Black Clawson Fibreclaim Inc | Methods of disposing waste and recovering heat |
| JPS5662891A (en) * | 1979-10-26 | 1981-05-29 | Murooka Yoichi | Preparation of solid fuel from waste |
| JPS60171382A (en) * | 1984-02-16 | 1985-09-04 | 株式会社ウチナミ | Drier for organic waste |
-
1989
- 1989-09-16 JP JP24030889A patent/JPH02229888A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52137401A (en) * | 1976-05-13 | 1977-11-16 | Black Clawson Fibreclaim Inc | Methods of disposing waste and recovering heat |
| JPS5662891A (en) * | 1979-10-26 | 1981-05-29 | Murooka Yoichi | Preparation of solid fuel from waste |
| JPS60171382A (en) * | 1984-02-16 | 1985-09-04 | 株式会社ウチナミ | Drier for organic waste |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001049813A1 (en) * | 1999-12-30 | 2001-07-12 | Gert Hjort Jensen | Method for the use of powdered material |
| JP2006015174A (en) * | 2004-06-30 | 2006-01-19 | Maezawa Ind Inc | Method and apparatus for sludge treatment |
| CN104250573A (en) * | 2014-09-19 | 2014-12-31 | 沈阳建筑大学 | Fuel and preparation method thereof |
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