JP2010279939A - Recycling apparatus and treatment method of sludge - Google Patents
Recycling apparatus and treatment method of sludge Download PDFInfo
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- JP2010279939A JP2010279939A JP2009150330A JP2009150330A JP2010279939A JP 2010279939 A JP2010279939 A JP 2010279939A JP 2009150330 A JP2009150330 A JP 2009150330A JP 2009150330 A JP2009150330 A JP 2009150330A JP 2010279939 A JP2010279939 A JP 2010279939A
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- 239000010802 sludge Substances 0.000 title claims abstract description 149
- 238000011282 treatment Methods 0.000 title claims abstract description 73
- 238000004064 recycling Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000004898 kneading Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 35
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 10
- 239000010440 gypsum Substances 0.000 claims description 7
- 229910052602 gypsum Inorganic materials 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 5
- 235000012255 calcium oxide Nutrition 0.000 claims description 5
- 229920000620 organic polymer Polymers 0.000 claims description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000006297 dehydration reaction Methods 0.000 abstract description 4
- 238000005469 granulation Methods 0.000 abstract description 4
- 230000003179 granulation Effects 0.000 abstract description 4
- 239000004575 stone Substances 0.000 abstract description 4
- 230000018044 dehydration Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 238000013019 agitation Methods 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 description 11
- 238000010276 construction Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 208000005156 Dehydration Diseases 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000011284 combination treatment Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 gravel Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Treatment Of Sludge (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
金属・鋳物・機械・化学、食品・窯業などの製造工場、建設土木工事、浄水下水処理施設、生コン工場、採石場、焼却場などから発生す汚泥を固化、造粒して再生資源化を図るものである。 Solidify and granulate sludge generated from metal, casting, machinery, chemical, food and ceramics manufacturing factories, construction engineering works, water purification sewage treatment facilities, ready-mixed concrete factories, quarries, incinerators, etc. Is.
汚泥は一般的に水分を多量に含むものが多く、このリサイクルは、これまで天日乾燥・圧密脱水・機械脱水・良質土との混合などの物理的処理と、焼石膏系・セメント系・生石灰系などの固化剤による化学的脱水処理が行われていたが、再生資源化には多大な労力とエネルギーを要し、また処理費用が高くなることから、汚泥は極めて困難なものとして、発生した汚泥の大部分は残土埋立場、安定型最終処分場、管理型最終処分場に廃棄されていた。 Sludge generally contains a large amount of moisture, and this recycling has so far been carried out through physical treatment such as sun drying, compaction dehydration, mechanical dehydration, and mixing with high quality soil, calcined gypsum, cement, and quicklime. Although chemical dehydration treatment with a solidifying agent such as a system was performed, sludge was generated as extremely difficult because it required a great deal of labor and energy to recycle resources and the treatment costs were high Most of the sludge was disposed of in the remaining landfill, stable final disposal site, and managed final disposal site.
汚泥に含まれ水分は含水率が２００％を超える高水分から、含水率が１０％程度の低水分まで大きく変動することが多く、また、汚泥の粒子についても１０ミクロンのシルトから１５ｃｍ程度の岩石を含むように粒度が極めて不均一なものが多い。含有組成についても、発生源によってヘドロ、有機腐敗物、焼却灰などの雑多なものを含み、大きく変動することが多い。これらの要因から汚泥の再生資源化は極めて難しく、発生の大部分は残土処分場や最終処分場で埋め立て処分されていた。汚泥のリサイクルは極めて難しい課題とされていた。 The water content of sludge often varies greatly from high moisture content exceeding 200% to low moisture content of about 10%, and the sludge particles are also about 10cm silt to about 15cm rock. In many cases, the particle size is extremely non-uniform so as to contain the. The contained composition also often varies greatly depending on the source, including miscellaneous materials such as sludge, organic rot, and incinerated ash. Because of these factors, it is extremely difficult to recycle sludge, and most of the generated waste was disposed of in landfills and final disposal sites. Sludge recycling has been considered an extremely difficult task.
従来、汚泥は、機械的処理、化学的処理による単独処理または簡単な組み合せの処理が実施されていたが、処理後の品質（成分、水分、粒度等）のバラツキが大きく、また処理エネルギーが大きく、装置のメンテナンスに多大な労力を要することが多いものであった。このため、発生源が多岐に亘り、かつ品質・性状が不均一・不安定な汚泥に対して、短時間かつ使用エネルギーが少なく、均一に混合・混練・固化処理ができる汚泥処理装置が強く求めらていた。本発明は、これらの課題を解決し、種々の現場から発生する汚泥について、装置の価格が安価でかつ、低コストで処理が可能な汚泥処理装置、及び汚泥処理方法に関するものである。また、汚泥の発生現場での処理と、処理物のリサイクル（現場での再使用）が求められることが多く、発生現場で汚泥処理が可能な移動式汚泥処理装置に関するものである。 Conventionally, sludge has been subjected to mechanical treatment, single treatment by chemical treatment or simple combination treatment, but the quality after treatment (components, moisture, particle size, etc.) varies widely and the treatment energy is large. The maintenance of the apparatus often requires a great deal of labor. For this reason, there is a strong demand for sludge treatment equipment that can be mixed, kneaded, and solidified uniformly for a short time with less energy to use for sludges that have a wide range of sources, quality and properties are uneven and unstable. I was. The present invention solves these problems and relates to a sludge treatment apparatus and a sludge treatment method capable of treating sludge generated from various sites at low cost and at low cost. Further, the present invention relates to a mobile sludge treatment apparatus capable of performing sludge treatment at the generation site, in many cases requiring treatment at the generation site of sludge and recycling (reuse at the site) of the processed material.
本発明の第１発明は、高含水率水または低水分の汚泥を脱水・乾燥することなく固化・造粒処理を行うにあたり、円筒横置型１軸混合機（４）において処理室の長さを直径の２〜５倍とし、汚泥投入口と固化剤の投入口を中央部から左右端の上部に設置し、処理汚泥の排出口を中央部付近の下部に設置し、混練羽根（１８）を回転軸（１７）の中央部に１〜３枚と中心部から左右方向に少なくとも２ケ所に１〜６枚を取り付けた形状の混練・固化・造粒することを特徴とする汚泥処理装置に関する。 In the first aspect of the present invention, the length of the processing chamber in the horizontal cylinder type single-shaft mixer (4) is set when performing solidification and granulation treatment without dehydrating and drying high moisture content water or low moisture sludge. 2 to 5 times the diameter, the sludge inlet and the solidifying agent inlet are installed in the upper part of the left and right ends from the center, the treated sludge outlet is installed in the lower part near the center, and the kneading blade (18) The present invention relates to a sludge treatment apparatus characterized by kneading, solidifying, and granulating a shape in which 1 to 3 sheets are attached to the central portion of a rotating shaft (17) and 1 to 6 pieces are attached to at least two places in the left-right direction from the central portion.
本発明の第２発明は、円筒横置型１軸混合機（４）の混練羽根（１８）が、三日月または鎌を半分にした形状とし、この形状の羽根の単独、または２〜３枚を組み合わせて、三角錐状にしたものを設置することを特徴とする汚泥処理装置に関するものであり、汚泥と固化剤との混合性を高めると同時に、混練抵抗を小さくすることが出来る。 According to the second aspect of the present invention, the kneading blade (18) of the cylindrical horizontal single-shaft mixer (4) has a crescent moon or half sickle shape, and the blades of this shape are used alone or in combination of two or three. In addition, the present invention relates to a sludge treatment apparatus characterized in that a triangular pyramid is installed, which can improve the mixing property of the sludge and the solidifying agent and reduce the kneading resistance.
本発明の第３発明は、汚泥処理室内の左右に取り付ける混練羽根の取付角度を、中央側に５〜３０度の範囲で斜めに設置することを特徴とする汚泥処理装置に関するものであり、汚泥と固化剤の混練性を高めると同時に、汚泥の混練・滞留時間に適度に設定することが出きる。 The third invention of the present invention relates to a sludge treatment apparatus, characterized in that the attachment angle of the kneading blades attached to the left and right in the sludge treatment chamber is obliquely installed in the range of 5 to 30 degrees on the center side. In addition to improving the kneadability of the solidifying agent, it is possible to appropriately set the sludge kneading and residence time.
本発明の第４発明は、汚泥処理装置（混練機本体）の下部にロードセル設置し、１バッチあたりの汚泥と固化剤を処理量を計測管理することを特徴とする請求項１〜３の汚泥処理装置に関するものであり、バッチ間の汚泥処理の変動を抑えることが可能なる。 4th invention of this invention installs a load cell in the lower part of a sludge processing apparatus (kneading machine main body), and measures and manages the processing amount of the sludge and solidification agent per batch, The sludge of Claims 1-3 characterized by the above-mentioned. This relates to a processing apparatus, and it is possible to suppress fluctuations in sludge processing between batches.
本発明の第５発明は、汚泥処理装置と、汚泥ホッパー（１）、固化剤のホッパー（７）・供給機などの付帯設備を一体化させて移動式汚泥リサイク装置としたことを特徴する汚泥処理装置に関するものであり、本発明の汚泥処理装置は混合性が良好かつ処理滞留時間が短かいことから、装置がコンパクトになり、付帯設備を配置・一体化して１０トン低床トラックへの搭載が可能であり、移動式リサイクル装置とすることが出来る。 A fifth aspect of the present invention is a sludge characterized in that a sludge treatment device, a sludge hopper (1), a hopper (7) for a solidifying agent, and ancillary equipment such as a feeder are integrated into a mobile sludge recycling device. Since the sludge treatment apparatus of the present invention has good mixing properties and short treatment residence time, the apparatus becomes compact, and the incidental facilities are arranged and integrated and mounted on a 10-ton low-floor truck. Therefore, it can be a mobile recycling device.
本発明の第６発明は、高含水率水または低水分汚泥の有効利用において、円筒横置型１軸混合機を使用して、汚泥に固化剤を添加して混練・固化・造粒することを特徴とする汚泥処理方法に関するもであり、固化剤を選定することにより発生源が多岐に亘り、水分や含有成分が不均質な汚泥に対して幅広く対応することが出来る。 In the sixth aspect of the present invention, in the effective use of high water content water or low moisture sludge, a cylindrical horizontal single-shaft mixer is used to add a solidifying agent to the sludge and knead, solidify and granulate. It is also related to the sludge treatment method that is characterized. By selecting a solidifying agent, it is possible to deal with a wide range of sludges with a wide variety of generation sources and heterogeneous moisture and components.
本発明の第７発明は、汚泥に添加する固化剤が焼石膏、ゼオライト、ベントナイト、生石灰、セメント、有機高分子の少なくとも一つからなることを特徴とする汚泥の処理方法に関するものである。 The seventh invention of the present invention relates to a method for treating sludge, wherein the solidifying agent added to the sludge is at least one of calcined gypsum, zeolite, bentonite, quicklime, cement, and organic polymer.
本発明における汚泥処理装置において、混練機を円筒型１軸混合機（４）として処理室の長さを直径の２〜５倍とし、三日月を半分にした形状の攪拌羽根を回転軸（１７）所定位置に取り付け、また固化剤を選定するすることにより、水分や含有成分は不均一かつ発生源が多岐に亘る汚泥に対して、幅広く対応することが出来、また処理時間が短く、低コストに連続的に処理処理が可能になる。また、滞留時間が短いことから処理装置がコンパクトになり、所用動力も小さいことから汚泥発生の現場に移動が可能な移動式リサイクル装置にすることが出来る。 In the sludge treatment apparatus according to the present invention, the kneading machine is a cylindrical uniaxial mixer (4), the length of the treatment chamber is 2 to 5 times the diameter, and the stirring blade having a shape in which the crescent is halved is the rotating shaft (17). By installing it in place and selecting a solidifying agent, it is possible to deal with a wide range of sludge with non-uniform moisture and components and a wide variety of sources, and the processing time is short and low cost. Continuous processing is possible. In addition, since the residence time is short, the processing apparatus is compact, and the required power is small, so that the mobile recycling apparatus can be moved to the site where sludge is generated.
本発明の汚泥処理機取り扱うことが出来る汚泥は、金属・鋳物・機械・化学、食品・窯業などの製造工場、建設土木工事、浄水下水処理施設、生コン工場、採石場、焼却場などから発生する汚泥であり、高含水汚泥、低水分汚泥、乾燥された汚泥のいずれのものも処理が可能である。 Sludge that can be handled by the sludge treatment machine of the present invention is generated from manufacturing plants such as metals, castings, machinery, chemistry, food and ceramics, construction engineering works, purified water sewage treatment facilities, ready-mix plants, quarries, incineration plants, etc. It is a sludge and can treat any of high water content sludge, low moisture sludge, and dried sludge.
本発明の汚泥処理機では、汚泥の粒度は、１０ミクロンのシルトから１５ｃｍの石までのものを処理が可能である。汚泥に混入してくる１５ｃｍ以上の岩石については、汚泥ホッパーの下に設置しているスクリーン（２）で排除される。汚泥の成分としては、ヘドロ、砂利、有機腐敗物、焼却灰などの雑多なものを取り扱うことが出来る。 In the sludge treatment machine of the present invention, sludge having a particle size from 10 micron silt to 15 cm stone can be treated. Rocks of 15 cm or more mixed into the sludge are removed by the screen (2) installed under the sludge hopper. As sludge components, miscellaneous items such as sludge, gravel, organic septics, and incinerated ash can be handled.
本発明の汚泥処理において添加する固化剤は、汚泥に含有する水分を物理的吸収や化学的水和反応により調整することが出来、ハンドリングが可能な状態にする共に、処理汚泥を１〜１５ｍｍφ程度に造粒化を促進する薬剤であり、焼石膏、ゼオライト、ベントナイト、生石灰、有機高分子の少なくとも一つからなりたっている。含有水分が高い汚泥は、焼石膏、有機高分子の配合を増やすことが望ましい。また、汚泥の処理物が植栽用土壌にリサイクルする場合は、処理物を中性にすることが好ましく、生石灰、セメントの使用量を削減し、焼石膏、ゼライト、ベントナイトの配合量を増やすことが望ましい。このように対象汚泥や処理物のリサイクル用途によって、配合成分、配合量を調整することが好ましい。 The solidifying agent to be added in the sludge treatment of the present invention can adjust the moisture contained in the sludge by physical absorption or chemical hydration reaction so that it can be handled and the treated sludge is about 1 to 15 mmφ. It is a chemical that promotes granulation and consists of at least one of calcined gypsum, zeolite, bentonite, quicklime, and organic polymer. It is desirable to increase the blending of calcined gypsum and organic polymer in sludge with high water content. In addition, when the sludge treated product is recycled to the soil for planting, it is preferable to neutralize the treated product, reduce the amount of quicklime and cement used, and increase the amount of calcined gypsum, celite and bentonite. Is desirable. Thus, it is preferable to adjust a compounding component and a compounding quantity according to the recycle use of object sludge and a processed material.
汚泥の処理手順は、汚泥が供給投入ホッパー（１）に投入され、振動スクリーン（２）通して投入シュウート（３）を経由して、横置型１軸混練機（４）に供給される。一方、固化剤は３種が個別に投入出来るように３基の固化剤ホッパー（６）、（７）、（１０）に仕込まれ、供給フィーダー（８）、（９）、（１１）から横置型１軸に供給される。混練機（４）への汚泥と固化剤の投入量は、ロードセル（２０）で検知され、合計量が計測される。この混練機（４）において、汚泥と固化剤が３０秒〜２分間混合され、水分が調整される同時に造粒化が進行する。造粒された処理物は、中央部付近の底部の排出口（５）の弁が開いて排出され、さらに排出コンベア（１２）、（１３）を経由して外部に移送される。 In the sludge treatment procedure, the sludge is fed into the feed-in hopper (1), is fed through the vibrating screen (2) and through the feed shout (3) to the horizontal uniaxial kneader (4). On the other hand, the solidifying agent is charged into the three solidifying agent hoppers (6), (7) and (10) so that the three types can be charged individually, and is supplied from the supply feeders (8), (9) and (11). Supplied to the mold 1 axis. The amount of sludge and solidifying agent charged into the kneader (4) is detected by the load cell (20), and the total amount is measured. In this kneader (4), sludge and a solidifying agent are mixed for 30 seconds to 2 minutes, and moisture is adjusted, and at the same time, granulation proceeds. The granulated processed material is discharged by opening the valve at the discharge port (5) at the bottom near the center, and further transferred to the outside via the discharge conveyors (12) and (13).
汚泥の処理装置（混練機本体）には、２軸型スクリューミキサー、２軸パドルミキサー、縦型バッチ式混練機等があるが、汚泥の含水率や成分の幅広い変動にも耐え、混練時間を短く、所用動力を少なく、かつメンテンナスが容易で、装置の製造コストが安価に出来ることから、横置型１軸混練機が好ましい。 Sludge treatment equipment (kneader body) includes a twin screw mixer, a twin paddle mixer, a vertical batch kneader, etc., but withstands a wide range of sludge moisture content and components, and kneading time A horizontal type single-screw kneader is preferred because it is short, requires little power, is easy to maintain, and can be manufactured at low cost.
本発明では、さらに汚泥と固化剤との混合性と高め、混合時間の短縮させるために、汚泥処理室の長さを直径の２〜５倍とし、処理汚泥の排出口を処理室中央付近の下部に設置し、汚泥投入口と固化剤の投入口を処理室中央付近の左右の上部に設置し、混練羽根（１８）を回転軸（１７）の中央部に１〜３枚と中心部から左右方向に少なくとも２ケ所に２〜６枚を取り付けることが望ましい。 In the present invention, in order to further improve the mixing property between the sludge and the solidifying agent and shorten the mixing time, the length of the sludge treatment chamber is set to 2 to 5 times the diameter, and the treatment sludge discharge port is located near the center of the treatment chamber. Installed at the bottom, the sludge inlet and the solidifying agent inlet are installed at the upper left and right near the center of the processing chamber, and the kneading blade (18) is placed in the center of the rotating shaft (17) from 1 to 3, It is desirable to attach 2 to 6 sheets in at least two places in the left-right direction.
円筒横置型１軸混合機（４）に取り付ける混練羽根（１８）の形状は、汚泥と固化剤との混合性と高めると同時に、汚泥との混合抵抗を少なくするため、三日月を半分にした形状または鎌を半分にした形状のものが好ましく、この羽根の単独、又は１〜３枚を組みあわせて三角錐状にした混合羽根（１８）を設置することが望ましい。 The shape of the kneading blade (18) attached to the cylindrical horizontal type single-shaft mixer (4) is a shape in which the crescent moon is halved in order to increase the mixing property between the sludge and the solidifying agent and reduce the mixing resistance with the sludge. Or the shape which made the sickle into the half is preferable, and it is desirable to install the mixing blade | wing (18) which made this pyramid single or 1 to 3 pieces, and was made into the shape of a triangular pyramid.
汚泥処理室内の左右に取り付ける混練羽根（１８）の取付角度は、中央側に５〜３０度の範囲で斜めに設置することが好ましい。この角度に羽根を設置することにより、汚泥が中央部移動すると共に汚泥と固化剤の混合性を高めることが出来る。 It is preferable to install the kneading blades (18) attached to the left and right sides of the sludge treatment chamber obliquely in the range of 5 to 30 degrees on the center side. By installing the blades at this angle, the sludge moves in the center and the mixing property of the sludge and the solidifying agent can be enhanced.
本発明の汚泥処理装置は、混合性が良好なことから、汚泥の処理・滞留時間が短かく、また所用動力が小さいことから、装置全体がコンパクトになり、汚泥処理装置（混練機）（４）と汚泥ホッパー（１）と固化剤のホッパー（６）（７）（１０）、供給機（８）（９）（１１）などの付帯設備と一体化させて、移動式リサイクル装置とすることが出来る。この移動式汚泥処理装置は、１０トン低床トラック車に搭載することが出来る。汚泥の発生現場に本発明の移動式汚泥処理装置を設置すれば、発生してくる汚泥を処理しながらその場においてリサイクル土壌して再使用することが出来る Since the sludge treatment apparatus of the present invention has good mixing properties, the sludge treatment / retention time is short, and the required power is small, so the whole apparatus becomes compact and the sludge treatment apparatus (kneader) (4 ), Sludge hopper (1), solidifying agent hopper (6) (7) (10), and feeders (8) (9) (11), etc., and integrated with the incidental equipment, etc. to make a mobile recycling device I can do it. This mobile sludge treatment apparatus can be mounted on a 10-ton low-floor truck. If the mobile sludge treatment device of the present invention is installed at the sludge generation site, it can be recycled and reused on the spot while processing the generated sludge.
また本発明の汚泥処理装置は、汚泥に粘土、砂利、ヘドロ、有機腐敗物、焼却灰や岩石などが含有しているものでも処理することが出来、かつ成分が大幅に変動しても処理することが出来る。 The sludge treatment apparatus of the present invention can also treat sludge containing clay, gravel, sludge, organic septic, incinerated ash, rocks, etc., and treats even if the components fluctuate significantly. I can do it.
本発明の汚泥処理装置は、羽根の形状、取付方法の特徴より１５ｃｍ以下の石が汚泥と共に混入しても汚泥の混練・固化処理の運転に支障を来すことはない。また、汚泥に１５ｃｍ以上の岩石が含まれる場合は、汚泥ホッパーの下部のスクリーで除去される構造になっているため、１５ｃｍより大きい岩石が汚泥に混入しても処理することが出来る。 The sludge treatment apparatus of the present invention does not hinder the operation of the sludge kneading and solidifying treatment even if stones of 15 cm or less are mixed with the sludge due to the shape of the blades and the characteristics of the mounting method. In addition, when the rock containing 15 cm or more is included in the sludge, the structure is removed by the screen at the bottom of the sludge hopper, so that even if rock larger than 15 cm is mixed into the sludge, it can be treated.
以下本発明の実施例について説明する。 Examples of the present invention will be described below.
含水率が１５０％の建設汚泥汚 ４７５ｋｇを本発明の汚泥処理装置（４）の汚泥ホッパー（１）に投入し、固化剤として焼石膏、有機高分子、ベントナイトを固化剤ホッパー（６）、（７）、（１０）に投入し、汚泥と固化剤の合計量が５００ｋｇになるように処理室に投入した。汚泥と固化剤の計量は汚泥処理装置（４）の下部のロードセル（２０）で検知した。汚泥と固化剤の混練は、混練羽根の回転数を６０ｒｐｎとして１分間とした。混練処理を終えた処理物は、汚泥処理装置（４）の中央下部の排出口（５）から排出した。
なお、汚泥処理装置（４）の混練羽根（１８）は、形状を羽根の三日月を半分にしたものとし、回転軸（１７）の中央部と左右の２ケ所に、混練羽根（１８）を各２枚づつを取り付けた。左右の混練羽根（１８）は、先端が中央部方向に１５％の角度に取り付た。排出された汚泥処理物について、粒径が１〜１０ｍｍΦの含有割合、遊離含水率の変動幅（サンプル数：１０点）、１時間後の造粒物の圧縮強度（１０点の平均値）を測定した。測定結果を表１に示す。475 kg of construction sludge sludge having a water content of 150% is put into the sludge hopper (1) of the sludge treatment apparatus (4) of the present invention, and calcined gypsum, organic polymer and bentonite are used as the solidifying agent hopper (6), ( 7) and (10) were added to the treatment chamber so that the total amount of sludge and solidifying agent was 500 kg. The sludge and the solidifying agent were measured by the load cell (20) below the sludge treatment device (4). The kneading of the sludge and the solidifying agent was carried out for 1 minute with the rotational speed of the kneading blades set to 60 rpn. The processed product after the kneading treatment was discharged from the discharge port (5) at the lower center of the sludge treatment apparatus (4).
The kneading blade (18) of the sludge treatment apparatus (4) has a shape that halves the crescent moon of the blade, and the kneading blade (18) is placed at the center of the rotating shaft (17) and at the two left and right. Two sheets were attached. The left and right kneading blades (18) have their tips attached at an angle of 15% in the central direction. About the discharged sludge treated product, the content ratio of 1 to 10 mmΦ, the fluctuation range of free water content (number of samples: 10 points), the compressive strength (average value of 10 points) of the granulated product after 1 hour It was measured. The measurement results are shown in Table 1.
実施例１の建設汚泥をと同じ汚泥処理装置（４）を用いて、左右の混練羽根（１８）の取り角度を０度（回転軸方向に対して垂直：直角）とした以外は実施例１と全く同じ条件で汚泥を処理した。排出された汚泥処理物について、粒径が１〜１０ｍｍΦの含有割合、遊離含水率の変動幅（サンプル数：１０点）、１時間後の造粒物の圧縮強度（１０点の平均値）を測定した。測定結果を表１に示す。Example 1 using the same sludge treatment apparatus (4) as the construction sludge of Example 1 except that the left and right kneading blades (18) were set at an angle of 0 degrees (perpendicular to the rotation axis direction: perpendicular). The sludge was treated under exactly the same conditions. About the discharged sludge treated product, the content ratio of 1 to 10 mmΦ, the fluctuation range of free water content (number of samples: 10 points), the compressive strength (average value of 10 points) of the granulated product after 1 hour It was measured. The measurement results are shown in Table 1.
実施例１の建設汚泥を同じ汚泥処理装置（４）を用いて、左右の混練羽根（１８）の形状を長方形の板状とした以外は実施例１と全く同じ条件で汚泥を処理した。排出された汚泥処理物について、粒径が１〜１０ｍｍΦの含有割合、遊離含水率の変動幅（サンプル数：１０点）、１時間後の造粒物の圧縮強度（１０点の平均値）を測定した。測定結果を表１に示す。The construction sludge of Example 1 was treated using the same sludge treatment apparatus (4) under exactly the same conditions as in Example 1 except that the shape of the left and right kneading blades (18) was a rectangular plate. About the discharged sludge treated product, the content ratio of 1 to 10 mmΦ, the fluctuation range of free water content (number of samples: 10 points), the compressive strength (average value of 10 points) of the granulated product after 1 hour It was measured. The measurement results are shown in Table 1.
１ 汚泥供給ホッパー
２ スクリー
３ 投入シュート
４ 汚泥処理装置（混練固化装置）
５ 処理汚泥排出口
６ 固化剤ホッパー
７ 固化剤ホッパー
８ 固化剤供給機
９ 固化剤供給機
１０ 固化剤ホッパー
１１ 固化剤供給機
１２ 処理汚泥排出コンベア
１３ 処理汚泥排出コンベア
１４ 振動モーター
１５ 振動用スプリング
１６ エキスパンション
１７ 混練羽根
１８ 混練回転軸
１９ 空気コンプレッサー
２０ ロードセル
２１ ロードセル
２２ ロードセル
２３ ロードセル
２４ 空気ダンパー
２５ 空気ダンパー
２６ 空気ダンパー
２７ エキスパンション
２８ エキスパンション
２９ エキスパンション
２６ エキスパンション1 Sludge supply hopper 2 Scree 3 Input chute 4 Sludge treatment equipment (kneading and solidifying equipment)
5 Processed Sludge Discharge Port 6 Solidifying Agent Hopper 7 Solidifying Agent Hopper 8 Solidifying Agent Supplying Machine 9 Solidifying Agent Supplying Machine 10 Solidifying Agent Hopper 11 Solidifying Agent Supplying Machine 12 Processed Sludge Discharge Conveyor 13 Processed Sludge Discharge Conveyor 14 Vibration Motor 15 Vibration Spring 16 Expansion 17 kneading blade 18 kneading rotary shaft 19 air compressor 20 load cell 21 load cell 22 load cell 23 load cell 24 air damper 25 air damper 26 air damper 27 expansion 28 expansion 29 expansion 26 expansion 26
Claims (7)
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| JP2009150330A JP2010279939A (en) | 2009-06-03 | 2009-06-03 | Recycling apparatus and treatment method of sludge |
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| JP2009150330A JP2010279939A (en) | 2009-06-03 | 2009-06-03 | Recycling apparatus and treatment method of sludge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249504A (en) * | 2011-06-02 | 2011-11-23 | 薛强 | System for continually mixing, modifying and pelletizing dewatered sludge |
| CN103102054A (en) * | 2011-11-14 | 2013-05-15 | 靖江市中大环境工程有限公司 | Rapid mechanical type sludge dewatering system |
| JP2015077579A (en) * | 2013-10-18 | 2015-04-23 | 鈴木 孝行 | Manufacturing method and manufacturing system of recycled sand |
| JP2018158312A (en) * | 2017-03-23 | 2018-10-11 | 株式会社Ｎｓｃ | Etching waste liquid treatment system and etching waste liquid treatment method |
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2009
- 2009-06-03 JP JP2009150330A patent/JP2010279939A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249504A (en) * | 2011-06-02 | 2011-11-23 | 薛强 | System for continually mixing, modifying and pelletizing dewatered sludge |
| CN103102054A (en) * | 2011-11-14 | 2013-05-15 | 靖江市中大环境工程有限公司 | Rapid mechanical type sludge dewatering system |
| JP2015077579A (en) * | 2013-10-18 | 2015-04-23 | 鈴木 孝行 | Manufacturing method and manufacturing system of recycled sand |
| JP2018158312A (en) * | 2017-03-23 | 2018-10-11 | 株式会社Ｎｓｃ | Etching waste liquid treatment system and etching waste liquid treatment method |
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