JPH10110176A - Production of solid fuel from waste material - Google Patents

Production of solid fuel from waste material

Info

Publication number
JPH10110176A
JPH10110176A JP26409096A JP26409096A JPH10110176A JP H10110176 A JPH10110176 A JP H10110176A JP 26409096 A JP26409096 A JP 26409096A JP 26409096 A JP26409096 A JP 26409096A JP H10110176 A JPH10110176 A JP H10110176A
Authority
JP
Japan
Prior art keywords
waste
raw material
cement
process product
combustible 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.)
Withdrawn
Application number
JP26409096A
Other languages
Japanese (ja)
Inventor
Masatake Arai
正剛 新井
Hideo Fukushima
秀男 福島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiheiyo Cement Corp
Original Assignee
Nihon Cement Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nihon Cement Co Ltd filed Critical Nihon Cement Co Ltd
Priority to JP26409096A priority Critical patent/JPH10110176A/en
Publication of JPH10110176A publication Critical patent/JPH10110176A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

PROBLEM TO BE SOLVED: To produce a solid fuel from combustible waste materials at low cost and efficiently. SOLUTION: An intermediate-process product Q containing quick lime obtained by heating a cement raw material L is partly taken out from a cyclone 8 at the lowest stage of a suspension preheater in a cement baking system. The intermediate-process product Q as a treating agent is mixed to crushed combustible waste materials. The resultant mixture is subjected to treatments such as dehydration, sterilization and deodorization, and the treated combustible waste materials are molded to produce the objective solid fuel.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、家庭ゴミ、一般ゴ
ミ等の廃棄物を、生石灰を含む処理剤により処理して、
固形化燃料を製造する廃棄物からの固形化燃料の製造方
法に関する。
The present invention relates to a method for treating waste such as household waste and general waste with a treatment agent containing quicklime.
The present invention relates to a method for producing solidified fuel from waste for producing solidified fuel.

【0002】[0002]

【従来の技術】従来の廃棄物から固形化燃料を製造する
方法は、 (1)廃棄物を破砕する (2)破砕された廃棄物中の可燃物と不燃物とを選別す
る (3)選別された可燃性廃棄物に処理剤として生石灰を
混合して処理する (4)処理された可燃性廃棄物を圧縮・成形・乾燥して
固形化燃料とする 等の工程からなっており、特開平6−108075号公
報等に開示されている。
2. Description of the Related Art Conventional methods for producing solidified fuel from waste include: (1) crushing waste; (2) sorting combustibles and non-combustibles in crushed waste; and (3) sorting. Mixing the treated combustible waste with quick lime as a treating agent and treating it. (4) Compression, molding and drying of the treated combustible waste to obtain a solidified fuel. It is disclosed in, for example, JP-A-6-108075.

【0003】[0003]

【発明が解決しようとする課題】上述の廃棄物に生石灰
を混合して処理する工程においては、生石灰と廃棄物中
の水分とが以下のように反応し、廃棄物中の水分が、こ
の水和反応に消費され、又は反応熱により蒸発すること
によって、廃棄物が脱水される。また、これにより発生
した消石灰によって、pHが強アルカリ性となるため、
廃棄物中の微生物は殺菌され、有機物の腐敗が抑制され
る。 CaO+H2 O→Ca(OH)2
In the above-mentioned process of mixing quicklime with waste and treating it, quicklime and water in the waste react as follows, and the water in the waste is converted into water. The waste is dehydrated by being consumed in the summation reaction or being evaporated by the heat of reaction. In addition, since the pH becomes strongly alkaline due to slaked lime generated by this,
Microorganisms in waste are sterilized, and spoilage of organic matter is suppressed. CaO + H 2 O → Ca (OH) 2

【0004】しかし、処理剤として生石灰を使用する場
合は、生石灰が高価でありコスト的に問題があり、ま
た、生石灰は一般的に粒状のものが使用されるため、廃
棄物との混合が十分でなく、上記反応が不均一になる等
の問題があった。
[0004] However, when quicklime is used as a treating agent, quicklime is expensive and there is a problem in terms of cost. In addition, since quicklime is generally used in a granular form, it cannot be sufficiently mixed with waste. However, there is a problem that the above reaction becomes non-uniform.

【0005】本発明は、このような従来の問題に鑑み、
廃棄物から固形化燃料を経済的かつ効率的に製造するこ
とができる廃棄物からの固形化燃料の製造方法の提供を
目的としたものである。
The present invention has been made in view of such a conventional problem,
It is an object of the present invention to provide a method for producing solidified fuel from waste, which can economically and efficiently produce solidified fuel from waste.

【0006】[0006]

【課題を解決するための手段】上述の如き従来の問題を
解決し、所期の目的を達成するための本発明の特徴は、
破砕された廃棄物に生石灰を含む処理剤を混合して処理
した後に成形して固形化燃料を製造する廃棄物からの固
形化燃料の製造方法において、前記処理剤は、セメント
焼成系のサスペンションプレヒーターから分取され、セ
メント原料を加熱して得られる生石灰を含む中間工程品
であることにある。
SUMMARY OF THE INVENTION The features of the present invention for solving the conventional problems as described above and achieving the intended purpose are as follows.
In a method for producing a solidified fuel from waste, which comprises mixing and treating a crushed waste with a treatment agent containing quick lime, and then molding to produce a solidified fuel, the treatment agent comprises a cement firing suspension suspension. It is an intermediate process product containing quicklime that is separated from a heater and obtained by heating a cement raw material.

【0007】[0007]

【発明の実施の形態】次に本発明の実施の形態を図面に
ついて説明する。
Embodiments of the present invention will now be described with reference to the drawings.

【0008】セメント工場においては、図1に示すよう
に、セメント原料Lが、原料貯蔵場1から、原料乾燥機
2、原料粉砕機3、原料タンク4を介して、セメント焼
成系のサスペンションプレヒーターに供給されるように
なっている。なお、セメント原料Lは石灰石、粘土、珪
石、鉄原料等からなり、これを加熱して得られる中間工
程品Q(後述)は生石灰に比して一般的に安価である。
In a cement factory, as shown in FIG. 1, a cement raw material L is supplied from a raw material storage site 1 through a raw material dryer 2, a raw material crusher 3, and a raw material tank 4 to a cement pre-heating suspension preheater. It is supplied to. Note that the cement raw material L is made of limestone, clay, silica stone, iron raw material, and the like, and an intermediate process product Q (described later) obtained by heating the raw material is generally less expensive than quick lime.

【0009】セメント焼成系のサスペンションプレヒー
ターは、複数段のサイクロン5、6、7、8、仮焼炉9
をもって構成されており、ロータリーキルン10の排ガ
スが、仮焼炉9、サイクロン8、7、6、5へ順に供給
されるようになっている。そして、最上段のサイクロン
5にセメント原料Lが投入され、このセメント原料Lが
最下段のサイクロン8に達するまでに850°C〜90
0°Cに加熱されて、セメント原料L中の石灰石の脱炭
酸化により以下のように生石灰が生成される。 CaCO3 →CaO+CO2
[0009] The suspension preheater of the cement firing system comprises a plurality of stages of cyclones 5, 6, 7, 8 and a calciner 9
The exhaust gas of the rotary kiln 10 is sequentially supplied to the calciner 9 and the cyclones 8, 7, 6, and 5. Then, the cement raw material L is supplied to the cyclone 5 at the uppermost stage, and the cement raw material L reaches 850 ° C. to 90 ° C. until the cement raw material L reaches the cyclone 8 at the lowermost stage.
Heated to 0 ° C., limestone in the cement raw material L is decarboxylated to produce quicklime as follows. CaCO 3 → CaO + CO 2

【0010】なお、最下段のサイクロン8までの中間工
程品Qの主な成分は、一例として、SiO2 19.0
%、Al2 3 4.3%、Fe2 3 2.7%、C
aO 60.5%、MgO 1.5%となっており、生
石灰を十分に含有している。また、中間工程品Qは、微
粉末状になっており、約0.5%の未燃カーボンが含有
されている。
The main component of the intermediate process product Q up to the lowermost cyclone 8 is, for example, SiO 2 19.0.
%, Al 2 O 3 4.3%, Fe 2 O 3 2.7%, C
It is 60.5% of aO and 1.5% of MgO, and contains sufficient quicklime. The intermediate process product Q is in the form of fine powder, and contains about 0.5% of unburned carbon.

【0011】そして、最下段のサイクロン8からロータ
リーキルン10へ、生石灰を含有した中間工程品Qが供
給されるが、最下段のサイクロン8の下部出口には分取
ダンパ20が設けられており、分取ダンパ20を介して
所定量の中間工程品Qが分取されるようになっている。
そして、分取された中間工程品Qは、水冷式冷却器2
1、輸送機22、出荷タンク24を介して、搬送車25
により固形化燃料製造工場へ搬送される。なお、図1に
おいて、23はエアロックフィーダであり、また、出荷
タンク24には集塵機が装備されている。
Then, the intermediate process product Q containing quicklime is supplied from the lowermost cyclone 8 to the rotary kiln 10, and a lowering outlet of the lowermost cyclone 8 is provided with a separation damper 20. A predetermined amount of the intermediate process product Q is collected via the take-off damper 20.
Then, the separated intermediate process product Q is supplied to the water-cooled cooler 2.
1. Transport vehicle 25 via transport device 22 and shipping tank 24
Is transported to the solidified fuel manufacturing plant. In FIG. 1, reference numeral 23 denotes an air lock feeder, and the shipping tank 24 is equipped with a dust collector.

【0012】一方、固形化燃料製造工場においては、図
2に示すように、廃棄物Gが、廃棄物置場31から搬送
されて、破砕機32により適度な大きさに破砕され、更
に、分離選別機33により、比重差を利用して、生ゴミ
等の可燃性廃棄物と金属、ガラス片等の不燃性廃棄物と
に分別され、分別された可燃性廃棄物が混合反応機34
に投入されるようになっている。なお、生ゴミ等の可燃
性廃棄物は、約25〜40%の水分を含有している。ま
た、生石灰を含有したセメント中間工程品Qは、搬送車
25から、受入タンク26を介して、処理剤として混合
反応機34に投入される。
On the other hand, in the solidified fuel manufacturing plant, as shown in FIG. 2, waste G is transported from a waste storage site 31 and crushed to an appropriate size by a crusher 32, and further separated and sorted. The combustible waste is separated into combustible waste such as garbage and non-combustible waste such as metal and glass pieces by utilizing the difference in specific gravity.
It is to be thrown into. Combustible waste such as garbage contains about 25 to 40% of water. In addition, the cement intermediate process product Q containing quicklime is fed from the transport vehicle 25 to the mixing reactor 34 as a processing agent via the receiving tank 26.

【0013】そして、混合反応機において、破砕された
可燃性廃棄物と微粉末状の中間工程品Qとが混合され、
中間工程品Q中の生石灰分と可燃性廃棄物中の水分とが
以下のように反応し、可燃性廃棄物中の水分が、この水
和反応に消費され、又は反応熱により蒸発することによ
って、可燃性廃棄物が脱水される。また、この反応で発
生する消石灰によって、pHが強アルカリ性となるた
め、可燃性廃棄物中の微生物は殺菌され、有機物の腐敗
が抑制される。 CaO+H2 O→Ca(OH)2
Then, in the mixing reactor, the crushed combustible waste and the finely powdered intermediate process product Q are mixed,
The quicklime component in the intermediate process product Q and the water in the combustible waste react as follows, and the water in the combustible waste is consumed in this hydration reaction or is evaporated by the heat of reaction. The combustible waste is dehydrated. In addition, slaked lime generated by this reaction makes the pH highly alkaline, so that microorganisms in the combustible waste are sterilized, and spoilage of organic matter is suppressed. CaO + H 2 O → Ca (OH) 2

【0014】また、微粉末状で、少量の未燃カーボンを
含んでいる中間工程品Qに、可燃性廃棄物中の臭気成分
が吸着され、可燃性廃棄物が脱臭される。
Further, the odor components in the combustible waste are adsorbed by the intermediate process product Q in the form of fine powder and containing a small amount of unburned carbon, and the combustible waste is deodorized.

【0015】このようにして、破砕された可燃性廃棄物
に対して、脱水、殺菌、脱臭等の化学的処理が施される
が、処理剤としてセメント焼成系から分取した中間工程
品Qを使用したので、生石灰を使用する場合に比して、
可燃性廃棄物を経済的に処理することができると共に、
可燃性廃棄物と十分に混合し、適度な反応速度により好
適に処理することができる。
The crushed combustible waste thus obtained is subjected to chemical treatment such as dehydration, sterilization, and deodorization. The intermediate process product Q separated from the cement firing system as a treatment agent is used. As I used it, compared to using quicklime,
Combustible waste can be economically treated,
It is sufficiently mixed with combustible waste and can be suitably treated with an appropriate reaction rate.

【0016】そして、処理された可燃性廃棄物は、圧縮
成形機35により所定の大きさ、形状に成形され、乾燥
機36により熱風で乾燥されて、固形化燃料Fとなり、
固形化燃料置場37に搬送される。
The treated combustible waste is formed into a predetermined size and shape by a compression molding machine 35 and dried by hot air by a dryer 36 to become a solidified fuel F.
It is transported to the solidified fuel storage 37.

【0017】なお、上述の実施の形態は、セメント焼成
系のサスペンションプレヒーターに仮焼炉が備えられて
いる場合について述べたが、仮焼炉は必ずしも備えなく
てもよい。また、上述の実施の形態は、セメント焼成系
のサスペンションプレヒーターの最下段のサイクロンか
ら中間工程品を分取する場合について述べたが、中段の
サイクロンから分取してもよい。
In the above embodiment, the case where the calciner is provided in the suspension preheater of the cement firing system is described, but the calciner may not be necessarily provided. Further, in the above-described embodiment, the case where the intermediate process product is collected from the lowermost cyclone of the suspension preheater of the cement firing system is described, but the intermediate process product may be collected from the middle cyclone.

【0018】[0018]

【発明の効果】上述のように、本発明に係る廃棄物から
の固形化燃料の製造方法は、セメント原料を加熱して得
られる生石灰を含む中間工程品を、セメント焼成系のサ
スペンションプレヒーターから分取し、破砕後成形前の
廃棄物に、処理剤として混合して処理することによっ
て、生石灰分の反応による脱水処理、生石灰分の反応で
発生する消石灰による殺菌処理、未燃カーボン及び微粉
末状による脱臭処理等を、効率的かつ経済的に行うこと
ができる。
As described above, in the method for producing solidified fuel from waste according to the present invention, an intermediate process product containing quick lime obtained by heating a cement raw material is produced from a cement firing suspension preheater. Separation, crushing and pre-molding waste are mixed and treated as a treating agent, so that dehydration by the reaction of quick lime, sterilization by slaked lime generated by the reaction of quick lime, unburned carbon and fine powder Deodorizing treatment or the like depending on the condition can be performed efficiently and economically.

【図面の簡単な説明】[Brief description of the drawings]

【図1】 本発明に係る廃棄物からの固形化燃料の製造
方法の実施の形態の一例であって、セメント工場におけ
る工程を示す概略図である。
FIG. 1 is an example of an embodiment of a method for producing a solidified fuel from waste according to the present invention, and is a schematic view showing steps in a cement plant.

【図2】 本発明に係る廃棄物からの固形化燃料の製造
方法の実施の形態の一例であって、固形化燃料製造工場
における工程を示す概略図である。
FIG. 2 is an example of an embodiment of a method for producing a solidified fuel from wastes according to the present invention, and is a schematic view showing steps in a solidified fuel production plant.

【符号の説明】[Explanation of symbols]

1 原料貯蔵場 2 原料乾燥機 3 原料粉砕機 4 原料タンク 5、6、7、8 サイクロン(サスペンションプレヒー
ター) 9 仮焼炉 10 ロータリーキルン 20 分取ダンパ 21 冷却機 22 輸送機 23 エアロックフィーダ 24 出荷タンク 25 搬送車 26 受入タンク 31 廃棄物置場 32 破砕機 33 分離選別機 34 混合反応機 35 圧縮成形機 36 乾燥機 37 固形化燃料置場 F 固形化燃料 G 廃棄物 L セメント原料 Q セメント中間工程品
REFERENCE SIGNS LIST 1 raw material storage site 2 raw material dryer 3 raw material crusher 4 raw material tank 5, 6, 7, 8 cyclone (suspension preheater) 9 calciner 10 rotary kiln 20 preparatory damper 21 cooler 22 transporter 23 airlock feeder 24 shipping Tank 25 Carrier 26 Receiving tank 31 Waste storage area 32 Crusher 33 Separation and sorting machine 34 Mixing reactor 35 Compression molding machine 36 Dryer 37 Solidified fuel storage area F Solidified fuel G Waste L Cement raw material Q Cement intermediate process

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 破砕された廃棄物に生石灰を含む処理剤
を混合して処理した後に成形して固形化燃料を製造する
廃棄物からの固形化燃料の製造方法において、 前記処理剤は、セメント焼成系のサスペンションプレヒ
ーターから分取され、セメント原料を加熱して得られる
生石灰を含む中間工程品であることを特徴としてなる廃
棄物からの固形化燃料の製造方法。
1. A method for producing a solidified fuel from waste, which comprises mixing and treating a crushed waste with a treatment agent containing quick lime and then molding to produce a solidified fuel, wherein the treatment agent comprises cement. A method for producing a solidified fuel from waste, characterized in that it is an intermediate process product containing quicklime obtained by heating a cement raw material, which is fractionated from a firing system suspension preheater.
JP26409096A 1996-10-04 1996-10-04 Production of solid fuel from waste material Withdrawn JPH10110176A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26409096A JPH10110176A (en) 1996-10-04 1996-10-04 Production of solid fuel from waste material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26409096A JPH10110176A (en) 1996-10-04 1996-10-04 Production of solid fuel from waste material

Publications (1)

Publication Number Publication Date
JPH10110176A true JPH10110176A (en) 1998-04-28

Family

ID=17398377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26409096A Withdrawn JPH10110176A (en) 1996-10-04 1996-10-04 Production of solid fuel from waste material

Country Status (1)

Country Link
JP (1) JPH10110176A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010114025A (en) * 2000-06-20 2001-12-29 강판수 Method for manufacturing solid fuel from waste organic substance
GB2426004A (en) * 2005-05-13 2006-11-15 Design Build And Recycle Ltd Process for treating waste
CN110557946A (en) * 2018-04-04 2019-12-10 太平洋工程株式会社 Organic sludge treatment device and treatment method
BE1030189B1 (en) * 2022-01-14 2023-08-16 Thyssenkrupp Ag Plant and a method for operating a plant for the production of cement or lime

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010114025A (en) * 2000-06-20 2001-12-29 강판수 Method for manufacturing solid fuel from waste organic substance
GB2426004A (en) * 2005-05-13 2006-11-15 Design Build And Recycle Ltd Process for treating waste
CN110557946A (en) * 2018-04-04 2019-12-10 太平洋工程株式会社 Organic sludge treatment device and treatment method
BE1030189B1 (en) * 2022-01-14 2023-08-16 Thyssenkrupp Ag Plant and a method for operating a plant for the production of cement or lime

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