JP2003137619A - Method for treating waste containing fibers - Google Patents
Method for treating waste containing fibersInfo
- Publication number
- JP2003137619A JP2003137619A JP2001330613A JP2001330613A JP2003137619A JP 2003137619 A JP2003137619 A JP 2003137619A JP 2001330613 A JP2001330613 A JP 2001330613A JP 2001330613 A JP2001330613 A JP 2001330613A JP 2003137619 A JP2003137619 A JP 2003137619A
- Authority
- JP
- Japan
- Prior art keywords
- waste
- cement
- fibers
- waste containing
- rotary kiln
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 82
- 239000000835 fiber Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 16
- 239000004568 cement Substances 0.000 claims abstract description 54
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000010802 sludge Substances 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000011491 glass wool Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- 238000010304 firing Methods 0.000 abstract description 10
- 239000002994 raw material Substances 0.000 description 32
- 239000000446 fuel Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000012717 electrostatic precipitator Substances 0.000 description 7
- 239000004927 clay Substances 0.000 description 6
- 238000007580 dry-mixing Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010922 glass waste Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 101100121112 Oryza sativa subsp. indica 20ox2 gene Proteins 0.000 description 1
- 101100121113 Oryza sativa subsp. japonica GA20OX2 gene Proteins 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Disintegrating Or Milling (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、廃石膏ボード、パ
ルプスラッジ、ガラスウールを含む廃棄物、紙類を含む
廃棄物などの繊維類を含有する廃棄物をセメント原燃料
の一部として資源利用することのできる繊維類を含有す
る廃棄物の処理方法に関する。TECHNICAL FIELD The present invention relates to the utilization of wastes containing fibers such as waste gypsum board, pulp sludge, wastes containing glass wool, wastes including papers as a part of raw cement fuel. The present invention relates to a method of treating waste containing fibers that can be processed.
【０００２】[0002]
【従来の技術】従来、産業活動などに伴って排出される
廃棄物は、その大部分が、埋立処分場への投棄、あるい
は、焼却炉による焼却によって処理されてきた。例え
ば、パルプスラッジや廃石膏ボード、ガラスウールを含
んだ建設資材等の繊維類を含有する廃棄物も、同様な方
法で処理されてきた。2. Description of the Related Art Heretofore, most of the waste discharged along with industrial activities has been disposed of at a landfill site or by incineration by an incinerator. For example, wastes containing fibers such as pulp sludge, waste gypsum board, and construction materials containing glass wool have been treated in the same manner.
【０００３】ところが、近年、埋立処分場の能力が不足
し、また、新たに処分場を確保することは社会的な制約
により困難となっていることから、埋立処分による方法
に期待することはできない状態となっている。また、焼
却炉による焼却処理に関しても、環境に与える負荷が大
きいために、実施が難しくなってきている。However, in recent years, the capacity of a landfill disposal site has been insufficient, and it is difficult to secure a new disposal site due to social restrictions. Therefore, we cannot expect a landfill disposal method. It is in a state. In addition, the incineration process using an incinerator is becoming difficult to carry out because of the large load on the environment.
【０００４】このような背景のもとに環境保全の観点か
ら、繊維類を含有する廃棄物についても、プラスチック
等の廃材や下水汚泥などと同様に、再資源化することが
社会的に重要な課題となっており、セメント製造用原燃
料の一部として処分する方法が推進されようとしてい
る。Against this background, from the viewpoint of environmental protection, it is socially important to recycle fibers-containing wastes as well as waste materials such as plastics and sewage sludge. It has become an issue, and the method of disposing as a part of raw fuel for cement production is being promoted.
【０００５】このような繊維類を含んだ廃棄物を、例え
ばセメント原料の一部として使用する場合、そのまま原
料乾燥混合粉砕段階で他のセメント原料と混ぜて使用す
る。つまり、繊維類を含んだ廃棄物を、他のセメント原
料と共にキルン排ガスを利用する原料ミルやドライヤに
混ぜて処理することが多い。When the waste containing such fibers is used as a part of a cement raw material, for example, it is mixed with other cement raw materials in the raw material dry mixing and pulverizing step. In other words, waste containing fibers is often mixed with other cement raw materials in a raw material mill or dryer that uses the kiln exhaust gas for processing.
【０００６】[0006]
【発明が解決しようとする課題】しかし、このような繊
維類を含んだ廃棄物を、原料乾燥混合粉砕段階で他のセ
メント原料と混ぜて使用すると、繊維類が排ガス中に飛
散し、排ガス処理のための電気集塵機の電極に付着した
りして、電気集塵機の性能を著しく低下させるおそれが
ある。However, when such waste material containing fibers is mixed with other cement raw materials in the raw material dry mixing pulverization step, the fibers are scattered in the exhaust gas and the exhaust gas treatment is performed. May adhere to the electrodes of the electrostatic precipitator, and may significantly reduce the performance of the electrostatic precipitator.
【０００７】そこで、繊維類を含んだ廃棄物を原料乾燥
混合粉砕工程に通さずに、直接セメント焼成設備のロー
タリーキルンへ投入することが考えられる。しかし、こ
れらの廃棄物は性状的に塊状あるいは板状であることが
多く、そのまま投入すると、セメントクリンカの品質に
悪影響を及ぼすことが考えられる。Therefore, it is conceivable that the waste material containing fibers is directly fed to the rotary kiln of the cement burning facility without passing through the raw material dry mixing and pulverizing step. However, these wastes are often lumpy or plate-like in nature, and if they are directly added, it may adversely affect the quality of the cement clinker.
【０００８】本発明は、上記事情を考慮し、電気集塵機
の性能低下を招くことなく、しかもセメントクリンカの
品質に悪影響を与えることなく、繊維類を含有する廃棄
物を有効な資源として利用することのできる処理方法を
提供することを目的とする。In consideration of the above circumstances, the present invention utilizes a waste material containing fibers as an effective resource without deteriorating the performance of the electrostatic precipitator and without adversely affecting the quality of the cement clinker. The purpose is to provide a treatment method capable of
【０００９】[0009]
【課題を解決するための手段】請求項１の発明は、繊維
類を含有する廃棄物を所定の粒度に破砕した後、これを
セメント焼成工程に投入して、セメントクリンカを製造
することを特徴としている。The invention according to claim 1 is characterized in that a waste containing fibers is crushed to a predetermined particle size and then this is put into a cement firing step to produce a cement clinker. I am trying.
【００１０】請求項２の発明は、請求項１において、前
記繊維類を含有する廃棄物を破砕する手段として湿式ミ
ルを用い、その湿式ミル内に投入した廃棄物に流動性を
与える溶媒として、水、廃油、廃液、汚泥、流動化剤の
うちの少なくとも１種を用いることを特徴としている。According to the invention of claim 2, in claim 1, a wet mill is used as a means for crushing the waste containing the fibers, and as a solvent which imparts fluidity to the waste introduced into the wet mill, It is characterized by using at least one of water, waste oil, waste liquid, sludge, and a fluidizing agent.
【００１１】請求項３の発明は、請求項１または２にお
いて、前記繊維類を含有する廃棄物が、廃石膏ボード、
パルプスラッジ、ガラスウールを含む廃棄物、紙類を含
む廃棄物のうちの少なくとも１種であることを特徴とし
ている。According to a third aspect of the present invention, in the first or second aspect, the waste containing the fibers is waste gypsum board,
It is characterized by being at least one of pulp sludge, waste containing glass wool, and waste containing papers.
【００１２】請求項４の発明は、請求項１〜３のいずれ
かにおいて、前記繊維類を含有する廃棄物の破砕品のセ
メント焼成工程に対する投入箇所を、ロータリーキルン
の窯尻部、ロータリーキルンの前段に設けた仮焼炉、ロ
ータリーキルンの前段に位置するプレヒータの少なくと
もいずれかの箇所とすることを特徴としている。According to the invention of claim 4, in any one of claims 1 to 3, the charging place of the crushed product of the waste containing the fibers to the cement firing step is provided in the kiln bottom of the rotary kiln or in the preceding stage of the rotary kiln. It is characterized in that it is provided in at least one of the calcination furnace and the preheater located in the preceding stage of the rotary kiln.
【００１３】請求項１〜４の発明では、繊維類を含有す
る廃棄物を処理する場合に、予め所定の粒度に破砕した
上でセメント焼成工程に投入するので、セメントクリン
カの品質に影響を及ぼさないようにすることができる。
また、キルン排ガスを利用する原料乾燥混合粉砕工程に
は通さないので、繊維物質が飛散して排ガス処理のため
の電気集塵機の性能低下を招くようなこともない。According to the first to fourth aspects of the invention, when the waste material containing fibers is treated, it is crushed to a predetermined particle size and then fed into the cement firing step, so that the quality of the cement clinker is affected. You can avoid it.
Further, since it does not pass through the raw material dry mixing and pulverizing process using the kiln exhaust gas, there is no possibility that the fibrous material is scattered and the performance of the electrostatic precipitator for treating the exhaust gas is deteriorated.
【００１４】繊維類を含有する廃棄物の破砕には、湿式
ミルや乾式ミルを採用することができるが、乾式ミルを
採用する場合は、ミル後の排ガス中の飛散物回収に電気
集塵機ではなく、集塵効率の悪化を招かないバグフィル
タを用いるのが望ましい。そして、バグフィルタで捕集
したものは、ミルによる破砕品と一緒にセメント焼成工
程に投入するのがよい。A wet mill or a dry mill can be used for crushing wastes containing fibers, but when a dry mill is used, it is not an electric dust collector for collecting scattered matters in exhaust gas after the mill. It is desirable to use a bag filter that does not deteriorate the dust collection efficiency. Then, what is collected by the bag filter is preferably put into the cement burning step together with the crushed product by the mill.
【００１５】また、湿式ミルを採用する場合は、請求項
２の発明のように、ミルの中に水、廃油、廃液、汚泥、
流動化剤のうちの少なくとも１種を溶媒として加えるこ
とで廃棄物に流動性を与える。そうすることで、塊状の
廃棄物を細かく破砕することができる。ここで、廃液と
しては、パルプ工場で出てくる廃液、市場などから回収
された牛乳や飲料、アルコールなどが考えられる。ま
た、汚泥としては、下水処理場で出てくる汚泥などが考
えられる。また、流動剤としては、主に水の添加量を減
らす減水剤（界面活性剤）などが考えられる。When a wet mill is adopted, water, waste oil, waste liquid, sludge,
At least one of the fluidizing agents is added as a solvent to render the waste fluid. By doing so, the lumpy waste can be finely crushed. Here, as the waste liquid, waste liquid that comes out from a pulp mill, milk and beverages collected from the market, alcohol, and the like can be considered. The sludge may be sludge from a sewage treatment plant. Further, as the fluidizing agent, a water reducing agent (surfactant) which mainly reduces the amount of water added can be considered.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。図１は本発明の処理方法を実施する
セメント製造設備の概要を示す図である。図において、
このセメント製造設備は、石灰石、粘土、珪石、鉄原料
よりなるセメント原料を貯蔵する原料貯蔵庫１、原料を
粉砕混合する原料ミル２、電気集塵機３、粘土ドライヤ
４、原料混合貯蔵サイロ５、プレヒータ６、仮焼炉１
２、ロータリーキルン７、クリンカクーラー８、クリン
カサイロ９、仕上ミル１０、セメントサイロ１１等を備
えて構成されている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing an outline of cement manufacturing equipment for carrying out the treatment method of the present invention. In the figure,
This cement manufacturing facility includes a raw material storage 1 for storing a cement raw material made of limestone, clay, silica stone, and an iron raw material, a raw material mill 2 for pulverizing and mixing the raw materials, an electric dust collector 3, a clay dryer 4, a raw material mixing and storing silo 5, and a preheater 6. , Calciner 1
2, a rotary kiln 7, a clinker cooler 8, a clinker silo 9, a finishing mill 10, a cement silo 11 and the like.
【００１７】セメント原料（石灰石、粘土、珪石、鉄原
料）は、必要に応じてドライヤ４を経て、原料ミル２に
導入される。これらの原料は、原料ミル２にて粉砕され
て原料混合貯蔵サイロ５に導入され、その後、プレヒー
タ６にて予熱された後、仮焼炉１２を経て、セメント焼
成用のロータリーキルン７に投入され、ロータリーキル
ン７で焼成されてセメントクリンカとなり、クリンカク
ーラー８で冷却された後、クリンカサイロ９に導入され
る。Cement raw materials (limestone, clay, silica stone, iron raw materials) are introduced into the raw material mill 2 via the dryer 4 as required. These raw materials are crushed by the raw material mill 2 and introduced into the raw material mixing / storing silo 5, after which they are preheated by the preheater 6 and then fed into the rotary kiln 7 for cement firing through the calcination furnace 12. It is burned in the rotary kiln 7 into a cement clinker, cooled in the clinker cooler 8, and then introduced into the clinker silo 9.
【００１８】プレヒータ６は、複数のサイクロンを多段
に接続した多段サイクロン式のものであり、粉砕された
セメント原料を、ロータリーキルン７の排気を利用し
て、所定温度（８００〜９００℃）まで予熱する。ロー
タリーキルン７は、若干下流側へ下方傾斜した横向き円
筒状のキルンシェルを有し、このキルンシェルをその中
心軸線回りに回転させながら、重油や微粉石炭を燃料に
してバーナー１４で加熱することで、プレヒータ６から
送られてくるセメント原料を、温度１４５０℃以上に昇
温して焼成反応させて、セメントクリンカを生成する。
その後、セメントクリンカは、ロータリーキルン７の窯
前部に連結されたクリンカクーラー８により冷却され
て、クリンカサイロ９に蓄えられた後、仕上工程の仕上
ミル１０へと送られる。The preheater 6 is a multi-stage cyclone type in which a plurality of cyclones are connected in multiple stages, and the crushed cement raw material is preheated to a predetermined temperature (800 to 900 ° C.) by utilizing the exhaust of the rotary kiln 7. . The rotary kiln 7 has a horizontally-oriented cylindrical kiln shell that is slightly inclined downwardly toward the downstream side. The preheater 6 is heated by the burner 14 using heavy oil or pulverized coal as fuel while rotating the kiln shell around its central axis. The cement raw material sent from the above is heated to a temperature of 1450 ° C. or higher and subjected to a firing reaction to produce a cement clinker.
Thereafter, the cement clinker is cooled by a clinker cooler 8 connected to the kiln front portion of the rotary kiln 7, stored in a clinker silo 9, and then sent to a finishing mill 10 in a finishing process.
【００１９】仕上ミル１０は、焼成工程で生産されたセ
メントクリンカに石膏を混ぜながらクリンカを微粉砕し
てセメントを排出する。そして、仕上ミル１０から排出
されたセメントは、セメントサイロ１１に導入された
後、供給先へと送られる。The finishing mill 10 finely grinds the clinker while mixing the gypsum with the cement clinker produced in the firing step, and discharges the cement. Then, the cement discharged from the finishing mill 10 is introduced into the cement silo 11 and then sent to the supply destination.
【００２０】一方、プレヒータ６でセメント原料の予熱
に供されたガスは、プレヒータ６から次に原料ミル２や
粘土ドライヤ４に送られ、ここで廃熱による乾燥に利用
された後、電気集塵機３で除塵されて、煙突１６から大
気放出される。On the other hand, the gas used for preheating the cement raw material by the preheater 6 is sent from the preheater 6 to the raw material mill 2 and the clay dryer 4, where it is used for drying by waste heat and then the electrostatic precipitator 3 The dust is removed by and is emitted to the atmosphere from the chimney 16.
【００２１】次に繊維類を含有する廃棄物２０を処理す
る場合の方法を説明する。この方法では、廃石膏ボー
ド、パルプスラッジ、ガラスウールを含む廃棄物、紙類
を含む廃棄物などの繊維類を含有する廃棄物２０を、予
めセメントクリンカの品質に影響を与えない程度の粒度
となるまで、乾式ミルや湿式ミル等の破砕手段２１で破
砕する。これは、この種の廃棄物２０が、塊状体として
廃棄されることが多いためである。そして、その破砕品
２２を、セメント焼成工程のロータリーキルン７の窯尻
部、ロータリーキルン７の前段に設けた仮焼炉１２、ロ
ータリーキルン７の前段に位置するプレヒータ６、クー
ラー抽気ダクト１５の少なくともいずれかの箇所に投入
し、セメント原料と混ぜることで、廃棄物２０をセメン
ト原燃料の一部として有効利用しながらセメントクリン
カを製造する。Next, a method for treating the waste 20 containing fibers will be described. In this method, waste 20 containing fibers such as waste gypsum board, pulp sludge, waste containing glass wool, waste containing paper, etc., is preliminarily treated with a particle size of such an extent that does not affect the quality of the cement clinker. Until it becomes, it is crushed by the crushing means 21 such as a dry mill or a wet mill. This is because this type of waste 20 is often discarded as a lump. Then, the crushed product 22 is used for at least one of the kiln butt portion of the rotary kiln 7 in the cement firing step, the calcining furnace 12 provided before the rotary kiln 7, the preheater 6 located before the rotary kiln 7, and the cooler extraction duct 15. By putting the waste 20 into a place and mixing it with the cement raw material, the waste clinker 20 is effectively used as a part of the raw cement fuel to produce the cement clinker.
【００２２】このようにロータリーキルン７の窯尻部な
どに繊維類を含有する廃棄物２０の破砕品２２を投入す
ることにより、可燃成分は燃料の一部としてロータリー
キルン７などで消費することができ、石灰成分、珪石成
分、粘土成分などは、セメント原料の一部として、セメ
ントクリンカの製造に利用することができる。In this way, by putting the crushed product 22 of the waste material 20 containing fibers into the kiln bottom of the rotary kiln 7, the combustible component can be consumed as a part of the fuel in the rotary kiln 7, etc. A lime component, a silica stone component, a clay component, etc. can be utilized for manufacturing a cement clinker as a part of a cement raw material.
【００２３】従って、繊維類を含有する廃棄物２０を有
効活用しながら処分できると共に、セメント原料や焼成
燃料を節約することができる。しかも、適正な粒度に破
砕した上で投入するので、セメントクリンカの品質に悪
影響をもたらす心配もない。また、同廃棄物２０を原料
乾燥混合粉砕工程に通さずに、直接セメント焼成設備の
ロータリーキルン７等へ投入するわけであるから、繊維
類が付着することによる電気集塵機３の性能低下の心配
も全くない。Therefore, the waste material 20 containing the fibers can be disposed of while being effectively utilized, and the cement raw material and the burning fuel can be saved. Moreover, since it is crushed to an appropriate particle size and then added, there is no fear of adversely affecting the quality of the cement clinker. Further, since the waste 20 is directly fed to the rotary kiln 7 or the like of the cement calcination facility without passing through the raw material dry mixing and pulverizing step, there is no concern that the performance of the electrostatic precipitator 3 may be deteriorated due to the adhesion of fibers. Absent.
【００２４】なお、同廃棄物２０の破砕手段２１として
乾式ミルを採用すると共に、廃棄物２０の乾燥のために
キルン排ガスやクーラー排ガス等を利用する場合は、ミ
ル後の排ガス中の飛散物回収に電気集塵機ではなく、集
塵効率の悪化を招かないバグフィルタを用い、バグフィ
ルタで捕集したものを、ミルによる破砕品と一緒にセメ
ント焼成工程に投入するのがよい。When a dry mill is used as the crushing means 21 for the waste 20, and when the kiln exhaust gas, cooler exhaust gas, or the like is used for drying the waste 20, the scattered matter in the exhaust gas after the mill is collected. In place of the electric dust collector, it is preferable to use a bag filter that does not deteriorate the dust collection efficiency, and put what is collected by the bag filter into the cement firing process together with the crushed product by the mill.
【００２５】また、湿式ミルを採用する場合は、ミルの
中に水、廃油、廃液、汚泥、流動化剤のうちの少なくと
も１種を溶媒として加えることで廃棄物に流動性を与え
るのが望ましく、そうすることで、塊状の廃棄物を円滑
に且つ細かく破砕することができるようになる。ここ
で、廃液としては、パルプ工場や半導体工場で出てくる
廃液、市場などから回収された牛乳や飲料、アルコール
などを広く利用することができる。また、汚泥として
は、下水処理場で出てくる汚泥、食品加工産業から出て
くる汚泥などを広く利用することができる。また、流動
剤としては、主に水の添加量を減らす減水剤（界面活性
剤）などを利用することができる。When a wet mill is used, it is desirable to add fluidity to the waste by adding at least one of water, waste oil, waste liquid, sludge and a fluidizing agent as a solvent into the mill. By doing so, it becomes possible to smoothly and finely crush the massive waste. Here, as the waste liquid, it is possible to widely use the waste liquid produced in a pulp factory or a semiconductor factory, milk or beverage collected from the market, alcohol, or the like. Further, as sludge, sludge produced in a sewage treatment plant, sludge produced in the food processing industry, etc. can be widely used. As the fluidizing agent, a water reducing agent (surfactant) that mainly reduces the amount of water added can be used.
【００２６】なお、湿式ミルを採用した場合は、湿式ミ
ルから出てくるスラリー状の破砕品２２を、ロータリー
キルン７の窯尻部等にスラリー状のまま投入してもよい
し、固液分離してケーキ状にしてから投入してもよい。
固液分離する場合には、分離した液体を再度溶媒として
再利用することも可能である。When a wet mill is adopted, the slurry-like crushed product 22 coming out of the wet mill may be put into the kiln butt portion of the rotary kiln 7 or the like as a slurry, or solid-liquid separation is performed. It may be made into a cake and then added.
In solid-liquid separation, the separated liquid can be reused as a solvent again.
【００２７】[0027]
【発明の効果】以上説明したように、請求項１〜４の発
明によれば、繊維類を含有する廃棄物をセメント工場に
持ち込んで処理する場合に、予め所定の粒度に破砕した
上でセメント焼成工程に投入するので、廃棄物をセメン
ト原燃料の一部として有効活用しながら、セメントクリ
ンカの品質に影響を及ぼさないように処理することがで
きる。また、同廃棄物を原料乾燥混合粉砕工程には通さ
ないので、電気集塵機の性能低下を招くようなことも全
くない。As described above, according to the inventions of claims 1 to 4, when a waste containing fibers is brought into a cement factory for processing, it is crushed to a predetermined particle size and then cemented. Since the waste is put into the firing process, the waste can be effectively utilized as a part of the raw material fuel for cement, and can be treated so as not to affect the quality of the cement clinker. Further, since the waste is not passed through the raw material dry mixing and crushing step, the performance of the electrostatic precipitator is not deteriorated at all.
【００２８】特に、請求項２の発明によれば、繊維類を
含有する廃棄物を適当な溶媒を用いて湿式ミルで混合粉
砕するので、塊状の廃棄物を円滑に且つ確実に細かく粉
砕することができる。特に、溶媒として廃油や廃液や汚
泥を使用した場合は、その有機分を燃料として使用する
ことができるので、燃料費の節約に貢献することができ
ると共に、それら廃棄物の有効な処分が可能となる。In particular, according to the second aspect of the present invention, since waste containing fibers is mixed and pulverized by a wet mill using an appropriate solvent, it is possible to pulverize massive waste smoothly and surely. You can In particular, when waste oil, waste liquid, or sludge is used as the solvent, the organic components can be used as fuel, which can contribute to fuel cost savings and enable effective disposal of these wastes. Become.
【００２９】また、請求項３の発明によれば、前記繊維
類を含有する廃棄物として、廃石膏ボード、パルプスラ
ッジ、ガラスウールを含む廃棄物、紙類を含む廃棄物の
うちの少なくとも１種を処理するので、可燃成分は焼成
燃料として、また、石灰・粘土・珪石等の成分はセメン
ト原料の一部として有効活用することができる。Further, according to the invention of claim 3, as the waste containing the fibers, at least one of waste gypsum board, pulp sludge, waste containing glass wool, and waste containing papers is used. As a result, the combustible components can be effectively used as a burning fuel, and the components such as lime, clay and silica stone can be effectively utilized as a part of the cement raw material.
【００３０】また、請求項４の発明によれば、前記繊維
類を含有する廃棄物の粉砕品の投入箇所を、ロータリー
キルンの窯尻部、ロータリーキルンの前段に設けた仮焼
炉、ロータリーキルンの前段に位置するプレヒータの少
なくともいずれかの箇所としたので、含有する可燃成分
を確実に燃焼させることができる。According to the invention of claim 4, the crushed product of the waste material containing the fibers is introduced into the kiln bottom of the rotary kiln, the calcining furnace provided in the upstream of the rotary kiln, and the upstream of the rotary kiln. Since the preheater is located at at least one of the locations, the combustible components contained therein can be reliably burned.
【図１】本発明の処理方法を実施するセメント製造設備
の概略構成図である。FIG. 1 is a schematic configuration diagram of a cement manufacturing facility for carrying out a treatment method of the present invention.
６ プレヒータ ７ ロータリーキルン １２ 仮焼炉 ２０ 繊維類を含有する廃棄物 ２１ 破砕手段 ２２ 破砕品 6 preheater 7 Rotary kiln 12 Calcination furnace 20 Waste containing fibers 21 Crushing means 22 crushed products
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） Ｃ０４Ｂ 7/44 Ｂ０９Ｂ 3/00 ＺＡＢ Ｚ Ｆターム(参考） 4D004 AA12 AA18 AA31 BA02 CA04 CA30 CB09 CC03 CC05 CC15 CC20 4D059 AA30 BB02 BK11 CC04 4D067 DD02 GA12 GA20 4G012 KA02 KA08 Continuation of front page (51) Int.Cl. 7 Identification code FI theme code (reference) C04B 7/44 B09B 3/00 ZAB Z F term (reference) 4D004 AA12 AA18 AA31 BA02 CA04 CA30 CB09 CC03 CC05 CC15 CC20 4D059 AA30 BB02 BK11 CC04 4D067 DD02 GA12 GA20 4G012 KA02 KA08
Claims (4)
破砕した後、これをセメント焼成工程に投入して、セメ
ントクリンカを製造することを特徴とする繊維類を含有
する廃棄物の処理方法。1. A treatment of a waste material containing fibers, which comprises crushing a waste material containing fibers to a predetermined particle size and then introducing the crushed cement material into a cement calcination step to produce a cement clinker. Method.
手段として湿式ミルを用い、その湿式ミル内に投入した
廃棄物に流動性を与える溶媒として、水、廃油、廃液、
汚泥、流動化剤のうちの少なくとも１種を用いることを
特徴とする請求項１に記載の繊維類を含有する廃棄物の
処理方法。2. A wet mill is used as a means for crushing the waste containing the fibers, and water, waste oil, waste liquid, as a solvent that imparts fluidity to the waste put in the wet mill,
The method for treating a waste containing fibers according to claim 1, wherein at least one of sludge and a fluidizing agent is used.
ボード、パルプスラッジ、ガラスウールを含む廃棄物、
紙類を含む廃棄物のうちの少なくとも１種であることを
特徴とする請求項１または２に記載の繊維類を含有する
廃棄物の処理方法。3. The waste containing the fibers is waste containing gypsum board, pulp sludge, glass wool,
It is at least 1 sort (s) of the waste containing papers, The processing method of the waste containing the fiber of Claim 1 or 2 characterized by the above-mentioned.
セメント焼成工程に対する投入箇所を、ロータリーキル
ンの窯尻部、ロータリーキルンの前段に設けた仮焼炉、
ロータリーキルンの前段に位置するプレヒータの少なく
ともいずれかの箇所とすることを特徴とする請求項１〜
３のいずれかに記載の繊維類を含有する廃棄物の処理方
法。4. A calcination furnace provided at a kiln butt portion of a rotary kiln, a pre-stage of the rotary kiln, and a charging point for a cement calcination process of the crushed waste containing the fibers.
The preheater located at the front stage of the rotary kiln is located at at least one of the locations.
4. A method for treating waste containing the fibers according to any one of 3 above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001330613A JP3960007B2 (en) | 2001-10-29 | 2001-10-29 | Method for treating waste containing fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001330613A JP3960007B2 (en) | 2001-10-29 | 2001-10-29 | Method for treating waste containing fibers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003137619A true JP2003137619A (en) | 2003-05-14 |
| JP3960007B2 JP3960007B2 (en) | 2007-08-15 |
Family
ID=19146319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001330613A Expired - Lifetime JP3960007B2 (en) | 2001-10-29 | 2001-10-29 | Method for treating waste containing fibers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3960007B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246274A (en) * | 2006-10-13 | 2008-10-16 | Nikko Co Ltd | Treating method of asbestos-containing building material |
| JP2008296189A (en) * | 2007-06-04 | 2008-12-11 | Nikko Co Ltd | Method and device for disposing of asbestos-containing building material |
| JP2016147437A (en) * | 2015-02-12 | 2016-08-18 | 住友大阪セメント株式会社 | Method for treating resin waste, and system for treating resin waste |
| JP2018100415A (en) * | 2016-07-26 | 2018-06-28 | 住友大阪セメント株式会社 | Inorganic fiber molding |
| JP2018168041A (en) * | 2017-03-30 | 2018-11-01 | 宇部興産株式会社 | Method for producing cement clinker, method for producing cement and method for processing organic sludge and release paper from waste gypsum board |
| JP2018168042A (en) * | 2017-03-30 | 2018-11-01 | 宇部興産株式会社 | Method for producing cement clinker, method for producing cement and method for processing organic sludge and sulfur-containing waste |
| JP2021049528A (en) * | 2020-12-21 | 2021-04-01 | 住友大阪セメント株式会社 | Method for treating resin waste, and system for treating resin waste |
| DE102022131424A1 (en) | 2022-11-28 | 2024-05-29 | Dfm Ip B.V. | Process for the recovery of mineral substrates from valuable materials containing artificial mineral fibres |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU172975U1 (en) * | 2016-12-22 | 2017-08-02 | Федеральное государственное бюджетное учреждение науки Институт проблем химико-энергетических технологий Сибирского отделения Российской академии наук (ИПХЭТ СО РАН) | MINERAL WOOL PRODUCTION GRINDER-GRANULATOR FOR WASTE PROCESSING |
-
2001
- 2001-10-29 JP JP2001330613A patent/JP3960007B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246274A (en) * | 2006-10-13 | 2008-10-16 | Nikko Co Ltd | Treating method of asbestos-containing building material |
| JP2008296189A (en) * | 2007-06-04 | 2008-12-11 | Nikko Co Ltd | Method and device for disposing of asbestos-containing building material |
| JP2016147437A (en) * | 2015-02-12 | 2016-08-18 | 住友大阪セメント株式会社 | Method for treating resin waste, and system for treating resin waste |
| JP2018100415A (en) * | 2016-07-26 | 2018-06-28 | 住友大阪セメント株式会社 | Inorganic fiber molding |
| JP2018168041A (en) * | 2017-03-30 | 2018-11-01 | 宇部興産株式会社 | Method for producing cement clinker, method for producing cement and method for processing organic sludge and release paper from waste gypsum board |
| JP2018168042A (en) * | 2017-03-30 | 2018-11-01 | 宇部興産株式会社 | Method for producing cement clinker, method for producing cement and method for processing organic sludge and sulfur-containing waste |
| JP2021049528A (en) * | 2020-12-21 | 2021-04-01 | 住友大阪セメント株式会社 | Method for treating resin waste, and system for treating resin waste |
| JP7120296B2 (en) | 2020-12-21 | 2022-08-17 | 住友大阪セメント株式会社 | Resin waste treatment method and resin waste treatment system |
| DE102022131424A1 (en) | 2022-11-28 | 2024-05-29 | Dfm Ip B.V. | Process for the recovery of mineral substrates from valuable materials containing artificial mineral fibres |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3960007B2 (en) | 2007-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4438329B2 (en) | Method for treating waste containing organic matter | |
| FI114393B (en) | Method and plant for making cement clinker | |
| EP1989156B1 (en) | Method and plant for drying and comminution of moist, mineral raw materials | |
| CN102190413B (en) | Method of integratedly utilizing sludge pretreatment and cement kiln, and system thereof | |
| WO2016041039A1 (en) | Process and system for eliminating the potential for ld and eaf steel slag expansion | |
| KR102109756B1 (en) | manufacturing method of flue gas desulfurization base material and high quality desulfurization plaster by new shell grinding systems | |
| CN102206091A (en) | Method for making ceramsite by using sludge | |
| CZ288842B6 (en) | Method and apparatus for using blast-furnace slag in cement clinker production | |
| Onaka | Sewage can make Portland cement: a new technology for ultimate reuse of sewage sludge | |
| US20230002277A1 (en) | Method of producing cement clinker and a second calcined material | |
| JP2003137619A (en) | Method for treating waste containing fibers | |
| JP4946186B2 (en) | Method for producing cement clinker | |
| CN105217987A (en) | The complex slag utilizing electric arc furnace restored slag and flyash to produce and preparation technology thereof | |
| JP4956909B2 (en) | Waste treatment method and treatment apparatus | |
| JP3551960B2 (en) | Treatment of soil contaminated with organic matter | |
| JP2003002705A (en) | Treating method of waste gypsum material | |
| JP4110749B2 (en) | Treatment method of sludge and combustible waste | |
| JP2005270874A (en) | Treatment method of polluted soil and apparatus thereof | |
| JP2003002706A (en) | Method of treating industrial waste water | |
| JPS5938175B2 (en) | Abrasura Tsujino Shiyorihouhou | |
| JP2003212618A (en) | Method for treating organic contaminated soil | |
| JP2006273970A (en) | Method for producing biomass-containing coal powder fuel, use thereof and system of producing biomass-containing coal powder fuel | |
| JP2003340430A (en) | Method for treating soil contaminated with organic matter | |
| JP2004000985A (en) | Processing method of organic matter contaminated soil | |
| JP2004305909A (en) | Sludge solidifying material using by-product fine powder from concrete lump as main component and manufacturing method for cement clinker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20040323 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060810 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060822 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061020 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20070130 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20070327 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070424 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070507 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 3960007 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100525 Year of fee payment: 3 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100525 Year of fee payment: 3 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100525 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110525 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110525 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120525 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120525 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130525 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130525 Year of fee payment: 6 |
|
| EXPY | Cancellation because of completion of term |