JP2009254921A - Method and system for drying treatment of organic sludge - Google Patents

Method and system for drying treatment of organic sludge Download PDF

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JP2009254921A
JP2009254921A JP2008103693A JP2008103693A JP2009254921A JP 2009254921 A JP2009254921 A JP 2009254921A JP 2008103693 A JP2008103693 A JP 2008103693A JP 2008103693 A JP2008103693 A JP 2008103693A JP 2009254921 A JP2009254921 A JP 2009254921A
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organic sludge
sludge
fine particles
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JP5086875B2 (en
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Keiichi Hayashi
慶一 林
Tomomichi Ekusa
知通 江草
Yoichi Koga
洋一 古賀
Sueo Yoshida
季男 吉田
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Mitsubishi Heavy Industries Environmental Engineering Co Ltd
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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
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and system for the drying treatment of organic sludge which reduce adhesion of organic sludge to the inside of a dryer to enable carrying out the smooth drying treatment. <P>SOLUTION: The organic sludge and carbon-containing fine solid granules having a grain diameter of several millimeters or less are premixed in a premixer 2 to disperse the fine solid granules in the organic sludge, and then the mixture from the premixer 2 is fed into a dryer 3. In the dryer 3, the sludge is subjected to the drying treatment in a heating space while being agitated by agitating paddles 33. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、有機性汚泥を乾燥機にて撹拌しながら乾燥処理する有機性汚泥の乾燥処理方法及び該システムに関する。   The present invention relates to an organic sludge drying method and a system for drying the organic sludge while stirring it with a dryer.

一般に、汚泥は多量の水分を含有しているため、燃料化等の資源化処理に乾燥処理が用いられる場合がある。
従来の汚泥乾燥処理は、図３に示すように、まず脱水機５１により脱水処理して得られた含水率７０〜８５％程度の脱水汚泥を、汚泥供給装置５２より所定量ずつ乾燥機５３内に投入し、該乾燥機５３にて熱源５４から送られる熱により汚泥を加熱して乾燥させ、含水率７０％以下の乾燥汚泥とする。乾燥機５３には、回転乾燥機、気流乾燥機、真空乾燥機等のように様々な型式が存在し、乾燥対象の種類、利用方法などによって適宜選択して用いられる。 In general, since sludge contains a large amount of moisture, a drying process may be used for a resource recovery process such as fuel.
As shown in FIG. 3, in the conventional sludge drying treatment, first, dehydrated sludge having a water content of about 70 to 85% obtained by dehydration treatment by the dehydrator 51 is fed into the dryer 53 by a predetermined amount from the sludge supply device 52. The sludge is heated and dried by heat sent from the heat source 54 in the dryer 53 to obtain a dried sludge having a moisture content of 70% or less. There are various types of dryers 53 such as a rotary dryer, an air dryer, a vacuum dryer, and the like, which are appropriately selected and used depending on the type of drying object, the method of use, and the like.

この乾燥機は、横置円筒状ケーシングの内部に撹拌パドルが設けられた構造を備え、ケーシング内に汚泥を投入し、撹拌パドルにより撹拌しながら汚泥を加熱して水分を蒸発させ、乾燥する装置である。汚泥の加熱には、ケーシング内部に熱風を導入し汚泥に直接接触させて加熱する直接加熱方式と、ケーシングのジャケット及び回転軸に熱媒体を供給して間接的に汚泥を加熱する間接加熱方式がある。
しかしながら、汚泥のうち下水処理場、し尿処理場、廃水処理設備、食品工場等から排出される活性汚泥、余剰汚泥等を始めとした有機性汚泥は、粘着性が高く、乾燥機の内部に汚泥が付着し、乾燥不良を引き起こしたり乾燥機が円滑に運転できなくなるという問題があった。特に、汚泥の含水率が５０〜６０％程度のとき汚泥の付着性が最も高くなるため、脱水汚泥から乾燥汚泥への乾燥過程で付着性が高くなり、乾燥機内に汚泥が付着しやすくなってしまう。 This dryer has a structure in which a stirring paddle is provided inside a horizontal cylindrical casing, and the sludge is charged into the casing, and the sludge is heated while being stirred by the stirring paddle to evaporate moisture and dry. It is. There are two types of sludge heating: a direct heating method in which hot air is introduced into the casing and brought into direct contact with the sludge and heated, and an indirect heating method in which the heat medium is supplied to the casing jacket and rotating shaft to indirectly heat the sludge. is there.
However, among sludge, organic sludge including activated sludge and surplus sludge discharged from sewage treatment plants, human waste treatment plants, wastewater treatment facilities, food factories, etc. is highly sticky, and sludge is contained inside the dryer. Adheres, causing problems such as poor drying and smooth operation of the dryer. In particular, when the moisture content of the sludge is about 50 to 60%, the adhesion of the sludge becomes the highest, so the adhesion becomes high in the drying process from the dehydrated sludge to the dried sludge, and the sludge tends to adhere to the dryer. End up.

そこで、特許文献１（特開２００５−１３９１０号公報）には、下水汚泥の粘性の問題を解決するために、下水汚泥脱水ケーキに活性炭と、ゼオライト又は燃焼灰とを混合する方法が開示されている。
また、特許文献２（特開２００３−５５６６６号公報）には、汚泥に木屑などをチップ化したものを加えて乾燥処理する構成が開示されており、汚泥にチップを加えることにより、高粘度・高濃度の汚泥であっても直接乾燥処理することを可能としている。 Therefore, Patent Document 1 (Japanese Patent Application Laid-Open No. 2005-13910) discloses a method of mixing activated carbon and zeolite or combustion ash into a sewage sludge dewatering cake in order to solve the viscosity problem of sewage sludge. Yes.
Patent Document 2 (Japanese Patent Application Laid-Open No. 2003-55666) discloses a configuration in which sludge is made by adding wood chips and the like into chips, and drying is performed. Even high-concentration sludge can be directly dried.

特開２００５−１３９１０号公報JP 2005-13910 A 特開２００３−５５６６６号公報Japanese Patent Laid-Open No. 2003-55666

上記したように、有機性汚泥の乾燥処理においては、汚泥が高粘度であるため乾燥機内部に付着して、乾燥不良や乾燥機の不具合を引き起こすという問題があった。
特許文献１に記載されるように、汚泥に活性炭や無機分を混ぜることにより汚泥の付着性を軽減することが可能であるが、高価な活性炭を利用するとランニングコストが増加し、また無機分を混ぜると、汚泥を燃料化する際、無機分の添加により発熱量が低くなり商品価値が低下してしまう。また、無機分の添加により運転コストの増加が引き起こされる。
また、特許文献２では、汚泥とチップを夫々乾燥機内に投入する構成が記載されているが、汚泥は乾燥機内に投入された時点で乾燥を開始するため、チップと混合する前に乾燥機に付着する惧れがある。また、一般的にチップは数センチ程度であるため、汚泥との接触面積が少なく、チップの存在しない部分で汚泥が乾燥機に付着してしまうことが考えられる。 As described above, in the drying treatment of organic sludge, there is a problem that sludge adheres to the inside of the dryer because it has a high viscosity and causes a drying failure and a failure of the dryer.
As described in Patent Document 1, it is possible to reduce the adherence of sludge by mixing activated carbon and inorganic components in the sludge. However, if expensive activated carbon is used, running cost increases and inorganic components are reduced. When mixed, when sludge is turned into fuel, the amount of heat generated is reduced by the addition of inorganic components, and the commercial value is lowered. In addition, the addition of inorganic components causes an increase in operating costs.
Further, Patent Document 2 describes a configuration in which sludge and chips are respectively charged into the dryer. However, since sludge starts drying when it is charged into the dryer, the sludge is put into the dryer before mixing with the chips. There is a risk of adhesion. Further, since the chip is generally about several centimeters, the contact area with the sludge is small, and it is conceivable that the sludge adheres to the dryer at a portion where the chip does not exist.

従って、本発明は上記従来技術の問題点に鑑み、有機性汚泥が乾燥機内部に付着することを軽減し、円滑に乾燥処理を行うことができる有機性汚泥の乾燥処理方法及び該システムを提供することを目的とする。   Accordingly, the present invention provides an organic sludge drying treatment method and system capable of reducing the adhesion of organic sludge to the inside of the dryer and smoothly performing the drying treatment in view of the above-described problems of the prior art. The purpose is to do.

そこで、本発明はかかる課題を解決するために、
有機性汚泥を乾燥機に投入し、加熱空間内で撹拌パドルにより汚泥を撹拌しながら乾燥処理する有機性汚泥の乾燥処理方法において、
前記有機性汚泥と、炭素分を含み粒径が数ミリ以下の固形細粒体とを予混合し、該固形細粒体を有機性汚泥中に分散させた後、前記有機性汚泥と前記固形細粒体の混合物を前記乾燥機に投入することを特徴とする。 Therefore, in order to solve this problem, the present invention provides:
In the organic sludge drying treatment method, the organic sludge is put into a dryer and dried while stirring the sludge with a stirring paddle in the heating space.
The organic sludge and solid fine particles containing carbon and having a particle size of several millimeters or less are premixed, and after the solid fine particles are dispersed in the organic sludge, the organic sludge and the solid sludge are dispersed. The mixture of fine particles is put into the dryer.

本発明によれば、有機性汚泥中に、炭素分を含み粒径が数ミリ以下の固形細粒体を混ぜることで、乾燥機での乾燥過程にて該固形細粒体が、有機性汚泥の固まりに亀裂を作る核となり、付着物が砕かれやすくなる。これにより、有機性汚泥の乾燥機内部への付着を軽減することができる。
このとき、固形細粒体の粒径を数ミリ以下、好適には２ｍｍ以下とすることにより、固形細粒体と有機性汚泥の接触面積が増大し、これらをより均一に混ぜることが可能で、汚泥の付着をより一層軽減できる。また、乾燥機の前段で、予混合機により有機性汚泥と固形細粒体を予混合した後、乾燥機で乾燥処理することにより、汚泥と固形細粒体が十分に混合され、固形細粒体が汚泥中に均一に分散するため、固形細粒体による付着軽減効果が十分に発揮される。尚、前記有機性汚泥は、粘着性の高い有機性廃棄物、有機性廃水を含むものとする。 According to the present invention, by mixing solid fine particles containing carbon and having a particle size of several millimeters or less in organic sludge, the solid fine particles are converted into organic sludge during the drying process in a dryer. It becomes a nucleus that makes a crack in the lump of mass, and the deposits are easily broken. Thereby, the adhesion of organic sludge to the inside of the dryer can be reduced.
At this time, by setting the particle size of the solid fine particles to several millimeters or less, preferably 2 mm or less, the contact area between the solid fine particles and the organic sludge increases, and these can be mixed more uniformly. , Sludge adhesion can be further reduced. In addition, after the organic sludge and the solid fine particles are premixed by the premixer in the previous stage of the dryer, the sludge and the solid fine particles are sufficiently mixed by drying treatment with the dryer, so that the solid fine particles Since the body is uniformly dispersed in the sludge, the effect of reducing adhesion due to the solid fine particles is sufficiently exhibited. In addition, the said organic sludge shall contain organic waste and organic waste water with high adhesiveness.

また、前記固形細粒体が、多孔質材であることを特徴とする。
このように、固形細粒体を多孔質材とすることにより、汚泥中の水分を吸収、吸着し、汚泥の粘着性が高くなる含水率の領域を避けることができる。
さらに、前記固形細粒体が、木屑を含む木質バイオマス若しくは石炭であることを特徴とする。
これにより、乾燥汚泥の発熱量を高くすることができ、該乾燥汚泥を燃料化する場合に商品価値を高めることが可能となる。 The solid fine particles are porous materials.
Thus, by using a solid fine particle as a porous material, it is possible to avoid a water content region where moisture in the sludge is absorbed and adsorbed, and the stickiness of the sludge is increased.
Furthermore, the solid fine particles are woody biomass containing wood chips or coal.
Thereby, the calorific value of dry sludge can be made high and it becomes possible to raise commercial value, when making this dry sludge into fuel.

さらにまた、前記固形細粒体の混合量が、前記有機性汚泥に対して１〜５０重量％、好ましくは１０〜２０重量％であることを特徴とする。
これは、固形細粒体の混合量が１重量％以下であると、汚泥量に対して固形細粒体量が不足し、付着軽減の効果が小さくなる。一方、固形細粒体の混合量が５０重量％以上となると、細粒化するための粉砕動力等が嵩み、コストが増大する。また、固形細粒体の混合量を１０重量％以上とすることで汚泥の付着軽減効果が増大し、固形細粒体の混合量を２０重量％以下とすることで、より粉砕動力を低減することができ、また有機性汚泥の処理量が増加し、効率的な汚泥処理が可能となるためより好ましい。
従って、固形細粒体の混合量を上記範囲内とすることにより、低コストで且つ十分に付着軽減効果を引き出せる。 Furthermore, the mixing amount of the solid fine particles is 1 to 50% by weight, preferably 10 to 20% by weight, based on the organic sludge.
This is because when the amount of solid fine particles mixed is 1% by weight or less, the amount of solid fine particles is insufficient with respect to the amount of sludge, and the effect of reducing adhesion is reduced. On the other hand, when the mixing amount of the solid fine particles is 50% by weight or more, the pulverization power and the like for making fine particles increase and the cost increases. Moreover, the sludge adhesion reduction effect is increased by setting the mixing amount of the solid fine particles to 10% by weight or more, and the pulverization power is further reduced by setting the mixing amount of the solid fine particles to 20% by weight or less. It is also preferable because the amount of organic sludge can be increased and efficient sludge treatment can be performed.
Therefore, by making the mixing amount of the solid fine particles within the above range, it is possible to bring out the effect of reducing adhesion sufficiently at low cost.

また、有機性汚泥の投入部と、該有機性汚泥を乾燥させる加熱空間と、該加熱空間内の有機性汚泥を撹拌する撹拌パドルとを有する乾燥機を備えた有機性汚泥の乾燥処理システムにおいて、
前記乾燥機の前段に、前記有機性汚泥と、炭素分を含み粒径が数ミリ以下の固形細粒体とを予混合して該固形細粒体を有機性汚泥中に分散させる予混合機を設け、該予混合機から排出された混合物を前記乾燥機の投入部に投入するようにしたことを特徴とする。 In addition, in an organic sludge drying treatment system comprising a dryer having an input portion of organic sludge, a heating space for drying the organic sludge, and a stirring paddle for stirring the organic sludge in the heating space ,
A premixer for pre-mixing the organic sludge and solid fine particles containing carbon and having a particle size of several millimeters or less in the front stage of the dryer and dispersing the solid fine particles in the organic sludge And the mixture discharged from the premixer is charged into the charging unit of the dryer.

また、有機性汚泥の投入部と、該有機性汚泥を乾燥させる加熱空間と、該加熱空間内の有機性汚泥を撹拌する撹拌パドルとを有する乾燥機を備えた有機性汚泥の乾燥処理システムにおいて、
前記乾燥機の前段に、炭素分を含む固形体を粒径数ミリ以下まで粉砕して固形細粒体を得る粉砕手段と、該固形細粒体と前記有機性汚泥とを予混合し、該固形細粒体を有機性汚泥中に分散させる予混合機とを設け、該予混合機から排出された混合物を前記乾燥機の投入部に投入するようにしたことを特徴とする。 In addition, in an organic sludge drying treatment system comprising a dryer having an input portion of organic sludge, a heating space for drying the organic sludge, and a stirring paddle for stirring the organic sludge in the heating space ,
In the front stage of the dryer, a pulverizing means for pulverizing a solid material containing carbon to a particle size of several millimeters or less to obtain a solid fine particle, the solid fine particle and the organic sludge are premixed, And a premixer that disperses the solid fine particles in the organic sludge, and the mixture discharged from the premixer is charged into the charging unit of the dryer.

また、前記固形細粒体が、多孔質材であることを特徴とする。
さらに、前記固形細粒体が、木屑を含む木質バイオマス若しくは石炭であることを特徴とする。
さらにまた、前記固形細粒体の混合量が、前記有機性汚泥に対して１〜５０重量％、好ましくは１０〜２０重量％であることを特徴とする。 The solid fine particles are porous materials.
Furthermore, the solid fine particles are woody biomass containing wood chips or coal.
Furthermore, the mixing amount of the solid fine particles is 1 to 50% by weight, preferably 10 to 20% by weight, based on the organic sludge.

また、前記乾燥機は、内部が真空吸引された真空乾燥機であることを特徴とする。
これは、真空乾燥機は水分の蒸発温度が低いため、加熱温度との差が大きくなり、汚泥の乾燥を促進することができる。
さらに、前記乾燥機の撹拌パドル或いは回転軸の少なくとも何れか一方が、テフロンコーティングされていることを特徴とする。
これにより、最も有機性汚泥が付着しやすい部位を低摩擦にし、汚泥の付着をより一層軽減することが可能である。 Further, the dryer is a vacuum dryer in which the inside is vacuumed.
Since the vacuum dryer has a low moisture evaporation temperature, the difference from the heating temperature is increased, and the drying of sludge can be promoted.
Furthermore, at least one of the stirring paddle and the rotating shaft of the dryer is coated with Teflon.
As a result, it is possible to reduce the friction of the part where organic sludge is most likely to adhere, and to further reduce the adhesion of sludge.

以上記載のごとく本発明によれば、有機性汚泥中に、炭素分を含み粒径が数ミリ以下の固形細粒体を混ぜることで、乾燥機での乾燥過程にて該固形細粒体が、有機性汚泥の固まりに亀裂を作る核となり、付着物が砕かれやすくなる。これにより、有機性汚泥の乾燥機内部への付着を軽減することができる。
このとき、固形細粒体の粒径を数ミリ以下、好適には２ｍｍ以下とすることにより、固形細粒体と有機性汚泥の接触面積が増大し、これらをより均一に混ぜることが可能で、汚泥の付着をより一層軽減できる。また、乾燥機の前段で、予混合機により有機性汚泥と固形細粒体を予混合した後、乾燥機で乾燥処理することにより、汚泥と固形細粒体が十分に混合され、固形細粒体が汚泥中に均一に分散するため、固形細粒体による付着軽減効果が十分に発揮される。 As described above, according to the present invention, by mixing solid fine particles containing carbon and having a particle size of several millimeters or less in organic sludge, the solid fine particles are obtained during the drying process in a dryer. It becomes a nucleus that makes cracks in the lump of organic sludge, and the deposits are easily crushed. Thereby, the adhesion of organic sludge to the inside of the dryer can be reduced.
At this time, by setting the particle size of the solid fine particles to several millimeters or less, preferably 2 mm or less, the contact area between the solid fine particles and the organic sludge increases, and these can be mixed more uniformly. , Sludge adhesion can be further reduced. In addition, after the organic sludge and the solid fine particles are premixed by the premixer in the previous stage of the dryer, the sludge and the solid fine particles are sufficiently mixed by drying treatment with the dryer, so that the solid fine particles Since the body is uniformly dispersed in the sludge, the effect of reducing adhesion due to the solid fine particles is sufficiently exhibited.

また、固形細粒体を多孔質材とすることにより、汚泥中の水分を吸収、吸着し、汚泥の粘着性が高くなる含水率の領域を避けることができる。
また、固形細粒体を、木屑等の木質バイオマス又は石炭とすることにより、乾燥汚泥の発熱量を高くすることができ、該乾燥汚泥を燃料化する場合に商品価値を高めることが可能となる。
さらに、固形細粒体の混合量を、有機性汚泥に対して１〜５０重量％、好ましくは１０〜２０重量％とすることにより、低コストで且つ十分に付着軽減効果を引き出せる。
さらにまた、回転軸或いは撹拌パドルの少なくとも何れか一方をテフロンコーティングすることにより、最も有機性汚泥が付着しやすい部位を低摩擦にし、汚泥の付着をより一層軽減することが可能である。 In addition, by using the solid fine particles as a porous material, it is possible to avoid a water content region in which the moisture in the sludge is absorbed and adsorbed and the adhesiveness of the sludge increases.
Further, by using solid biomass as woody biomass such as wood chips or coal, the calorific value of the dried sludge can be increased, and the commercial value can be increased when the dried sludge is converted into fuel. .
Furthermore, the amount of solid fine particles mixed is 1 to 50% by weight, preferably 10 to 20% by weight, based on the organic sludge.
Furthermore, by teflon-coating at least one of the rotating shaft and the stirring paddle, it is possible to reduce the friction of the most susceptible to organic sludge and further reduce sludge adhesion.

以下、図面を参照して本発明の好適な実施例を例示的に詳しく説明する。但しこの実施例に記載されている構成部品の寸法、材質、形状、その相対的配置等は特に特定的な記載がない限りは、この発明の範囲をそれに限定する趣旨ではなく、単なる説明例に過ぎない。   Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, but are merely illustrative examples. Not too much.

図１は、本発明の実施形態に係る汚泥乾燥処理システムの構成図である。同図に示されるように、かかるシステムは、有機性汚泥１０と炭素分を含む固形細粒体１２とを予混合する予混合機２と、該予混合機２から排出される有機性汚泥１０と固形細粒体１２の混合物１３が投入され、該混合物１３を乾燥処理する乾燥機３とを備える。尚、前記有機性汚泥１０は、粘着性の高い有機性廃棄物、有機性廃水を含むものとする。   FIG. 1 is a configuration diagram of a sludge drying treatment system according to an embodiment of the present invention. As shown in the figure, the system includes a premixer 2 that premixes organic sludge 10 and solid fine particles 12 containing carbon, and the organic sludge 10 discharged from the premixer 2. And a dryer 13 for charging the mixture 13 and drying the mixture 13. The organic sludge 10 includes highly sticky organic waste and organic waste water.

前記有機性汚泥１０は、下水汚泥、し尿処理汚泥、廃水処理汚泥、食品残渣等の有機性の汚泥である。必要に応じて、予め脱水処理を行っておくとよい。
前記固形細粒体１２は、炭素分を含み、粒径が数ミリ以下、好適には２ｍｍ以下の細粒体である。固形細粒体１２は、鋸屑等のように最初から上記粒径を満たすときはそのまま予混合機２に投入してもよいが、上記粒径より大きい場合には、予混合機２の前段に粉砕機１を設け、該粉砕機１で炭素含有固形体１１を粉砕し、細粒化する。該粉砕機１は、炭素含有固形体１１が投入され、該固形体１１を上記粒径まで粉砕する装置であればその構造は特に限定されないが、例えば、ボールミル、ロッドミル、振動ミル等が用いられる。 The organic sludge 10 is organic sludge such as sewage sludge, human waste treatment sludge, wastewater treatment sludge, and food residue. If necessary, it is advisable to perform a dehydration process in advance.
The solid fine particles 12 are fine particles containing carbon and having a particle size of several millimeters or less, preferably 2 mm or less. The solid fine particles 12 may be put into the premixer 2 as they are when they satisfy the above particle size from the beginning, such as sawdust, but if they are larger than the above particle size, they are placed in the front stage of the premixer 2. A pulverizer 1 is provided, and the carbon-containing solid body 11 is pulverized and pulverized by the pulverizer 1. The structure of the pulverizer 1 is not particularly limited as long as the carbon-containing solid body 11 is charged and the solid body 11 is pulverized to the above particle diameter. For example, a ball mill, a rod mill, a vibration mill, or the like is used. .

前記固体細粒体１２は、多孔質材であることが好ましい。さらに好適には、固体細粒体１２は木屑を含む木質バイオマス若しくは石炭とする。
前記予混合機２は、有機性汚泥１０と固形細粒体１２を混合する装置であり、固形細粒体１２を有機性汚泥１０中に均一に分散させることが可能であればその構造は特に限定されない。例えば、多軸式混合機等が好適に用いられる。予混合機２に投入される固形細粒体１２は、有機性汚泥１０に対して１〜５０重量％、好ましくは１０〜２０重量％とすることが好ましい。 The solid fine particles 12 are preferably a porous material. More preferably, the solid fine particles 12 are made of woody biomass containing coal or coal.
The premixer 2 is a device that mixes the organic sludge 10 and the solid fine particles 12, and the structure thereof is particularly suitable if the solid fine particles 12 can be uniformly dispersed in the organic sludge 10. It is not limited. For example, a multi-shaft mixer or the like is preferably used. The solid fine particles 12 charged into the premixer 2 are 1 to 50% by weight, preferably 10 to 20% by weight, based on the organic sludge 10.

前記乾燥機３は、予混合機２からの混合物１３が投入され、該混合物１３を乾燥処理する装置である。該乾燥機３は、横置円筒状のケーシング３１と、複数の撹拌パドル３３が取り付けられた回転軸３２とを備える。図２に、乾燥機３のＡ−Ａ断面図を示す。同図に示されるように、撹拌パドル３３は回転軸３２に対して放射状に複数設けられ、回転軸３２とともに回転してケーシング３１内の混合物１３を撹拌する。ケーシング３１は、内部を加熱する加熱手段を備える。該加熱手段は、間接加熱式、直接加熱式の何れでもよい。間接加熱式の場合は、ケーシング３１に設けられたジャケット及び回転軸３２の内部に、ボイラ４で発生させた蒸気１６を供給して混合物１３を加熱する。直接加熱式の場合は、ケーシング３１内に熱風を導入し、該熱風を汚泥に直接接触させて加熱する。   The dryer 3 is an apparatus that receives the mixture 13 from the premixer 2 and performs a drying process on the mixture 13. The dryer 3 includes a horizontal cylindrical casing 31 and a rotating shaft 32 to which a plurality of stirring paddles 33 are attached. In FIG. 2, AA sectional drawing of the dryer 3 is shown. As shown in the figure, a plurality of stirring paddles 33 are provided radially with respect to the rotating shaft 32, and rotate with the rotating shaft 32 to stir the mixture 13 in the casing 31. The casing 31 includes heating means for heating the inside. The heating means may be either an indirect heating type or a direct heating type. In the case of the indirect heating type, steam 16 generated by the boiler 4 is supplied into a jacket and a rotary shaft 32 provided in the casing 31 to heat the mixture 13. In the case of the direct heating type, hot air is introduced into the casing 31, and the hot air is directly brought into contact with sludge and heated.

上記構成を有する乾燥機３にて、予混合機２からの混合物１３はケーシング３１の一端側から投入され、ケーシング３１内の加熱空間内で撹拌パドル３３により撹拌しながら混合物１３が乾燥処理される。乾燥処理が終了したら、ケーシング３１の他端側より乾燥汚泥１４が排出される。
また、回転軸３２或いは撹拌パドル３３の少なくとも何れか一方をテフロンコーティングすることが好ましい。 In the dryer 3 having the above configuration, the mixture 13 from the premixer 2 is charged from one end side of the casing 31, and the mixture 13 is dried while being stirred by the stirring paddle 33 in the heating space in the casing 31. . When the drying process is completed, the dried sludge 14 is discharged from the other end side of the casing 31.
Further, it is preferable that at least one of the rotating shaft 32 and the stirring paddle 33 is coated with Teflon.

混合物１３の乾燥により発生した蒸気を含む乾燥排ガス１５は、凝縮器５に導入され水分が除去された後、必要に応じて排ガス処理を行い、大気に放出される。
また、乾燥機３は真空乾燥機であることが好ましく、この場合、真空ポンプ６によりケーシング３１内部を真空吸引する。真空乾燥機は、水分の蒸発温度が低いため、加熱温度との差が大きくなり、汚泥の乾燥を促進することができる。 The dried exhaust gas 15 containing the steam generated by drying the mixture 13 is introduced into the condenser 5 and the moisture is removed.
The dryer 3 is preferably a vacuum dryer. In this case, the inside of the casing 31 is vacuumed by the vacuum pump 6. Since the vacuum dryer has a low water evaporation temperature, the difference from the heating temperature is increased, and the drying of sludge can be promoted.

本実施形態によれば、有機性汚泥１０に炭素分を含み粒径が数ミリ以下の固形細粒体１２を混ぜることで、乾燥機３での乾燥過程にて、該固形細粒体１２が有機性汚泥１０の固まりに亀裂を作る核となり、付着物が砕かれやすくなる。これにより、有機性汚泥１０の乾燥機３内部への付着を軽減することができる。
このとき、固形細粒体１２の粒径を数ミリ以下、好適には２ｍｍ以下とすることにより、固形細粒体１２と有機性汚泥１０の接触面積が増大し、これらをより均一に混ぜることが可能で、汚泥の付着をより一層軽減できる。また、乾燥機３の前段で、予混合機２により有機性汚泥１０と固形細粒体１２を予混合した後、乾燥機３で乾燥処理することにより、汚泥１０と固形細粒体１２が十分に混合され、固形細粒体１２が汚泥中に均一に分散するため、固形細粒体１２による付着軽減効果が十分に発揮される。 According to this embodiment, the solid fine particles 12 are mixed in the drying process in the dryer 3 by mixing the organic sludge 10 with the solid fine particles 12 containing carbon and having a particle size of several millimeters or less. It becomes the nucleus which makes a crack in the lump of the organic sludge 10, and a deposit | attachment becomes easy to be crushed. Thereby, the adhesion of the organic sludge 10 to the inside of the dryer 3 can be reduced.
At this time, by setting the particle size of the solid fine particles 12 to several millimeters or less, preferably 2 mm or less, the contact area between the solid fine particles 12 and the organic sludge 10 is increased, and these are mixed more uniformly. It is possible to further reduce sludge adhesion. In addition, after the organic sludge 10 and the solid fine particles 12 are premixed by the premixer 2 at the front stage of the dryer 3, the sludge 10 and the solid fine particles 12 are sufficiently obtained by drying with the dryer 3. Since the solid fine particles 12 are uniformly dispersed in the sludge, the adhesion reducing effect by the solid fine particles 12 is sufficiently exhibited.

また、固形細粒体１２を多孔質材とすることにより、汚泥中の水分を吸収、吸着し、汚泥の粘着性が高くなる含水率の領域を避けることができる。
また、固形細粒体１２を、木屑等の木質バイオマス又は石炭とすることにより、乾燥汚泥１４の発熱量を高くすることができ、該乾燥汚泥１４を燃料化する場合に商品価値を高めることが可能となる。
さらに、固形細粒体１２の混合量を、有機性汚泥１０に対して１〜５０％、好ましくは１０〜２０重量％とすることにより、低コストで且つ十分に付着軽減効果を引き出せる。
さらにまた、回転軸３２或いは撹拌パドル３３の少なくとも何れか一方をテフロンコーティングすることにより、最も有機性汚泥１０が付着しやすい部位を低摩擦にし、汚泥の付着をより一層軽減することが可能である。 In addition, by using the solid fine particles 12 as a porous material, it is possible to avoid a water content region in which moisture in the sludge is absorbed and adsorbed and the sludge becomes highly sticky.
Further, by using the solid fine particles 12 as woody biomass such as wood chips or coal, the calorific value of the dried sludge 14 can be increased, and the commercial value can be increased when the dried sludge 14 is converted into fuel. It becomes possible.
Furthermore, by making the mixing amount of the solid fine particles 12 1 to 50%, preferably 10 to 20% by weight with respect to the organic sludge 10, the effect of reducing adhesion can be sufficiently obtained at low cost.
Furthermore, by coating at least one of the rotating shaft 32 and the stirring paddle 33 with Teflon, it is possible to make the portion where the organic sludge 10 is most likely to adhere to have low friction and further reduce sludge adhesion. .

本発明の有機性汚泥の乾燥処理方法及び該システムは、有機性汚泥が乾燥機内部に付着することを軽減し、円滑に乾燥処理を行うことができるため、各種有機性汚泥の乾燥処理に適しており、下水処理場、し尿処理場、廃水処理設備、食品工場等の処理設備にて好適に用いられ、また製造した乾燥汚泥は、そのまま或いは炭化処理して、火力発電ボイラ等の燃焼設備の燃料として好適に用いられる。   The organic sludge drying treatment method and the system according to the present invention reduce the adhesion of organic sludge to the inside of the dryer and can smoothly perform the drying treatment, and therefore are suitable for drying treatment of various organic sludges. The dry sludge produced is used as it is or after being carbonized for use in a combustion facility such as a thermal power boiler. It is suitably used as a fuel.

本発明の実施形態に係る汚泥乾燥処理システムの構成図である。It is a block diagram of the sludge drying processing system which concerns on embodiment of this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 従来の汚泥乾燥処理を示すブロック図である。It is a block diagram which shows the conventional sludge drying process.

符号の説明Explanation of symbols

１ 粉砕機
２ 予混合機
３ 乾燥機
４ ボイラ
５ 凝縮器
６ 真空ポンプ
１０ 有機性汚泥
１１ 炭素含有固形体
１２ 固形細粒体
１３ 混合物
１４ 乾燥汚泥
３１ ケーシング
３２ 回転軸
３３ 撹拌パドル DESCRIPTION OF SYMBOLS 1 Crusher 2 Premixer 3 Dryer 4 Boiler 5 Condenser 6 Vacuum pump 10 Organic sludge 11 Carbon-containing solid body 12 Solid fine particle body 13 Mixture 14 Dry sludge 31 Casing 32 Rotating shaft 33 Stir paddle

Claims (11)

有機性汚泥を乾燥機に投入し、加熱空間内で撹拌パドルにより汚泥を撹拌しながら乾燥処理する有機性汚泥の乾燥処理方法において、
前記有機性汚泥と、炭素分を含み粒径が数ミリ以下の固形細粒体とを予混合し、該固形細粒体を有機性汚泥中に分散させた後、前記有機性汚泥と前記固形細粒体の混合物を前記乾燥機に投入することを特徴とする有機性汚泥の乾燥処理方法。 In the organic sludge drying treatment method, the organic sludge is put into a dryer and dried while stirring the sludge with a stirring paddle in the heating space.
The organic sludge and solid fine particles containing carbon and having a particle size of several millimeters or less are premixed, and after the solid fine particles are dispersed in the organic sludge, the organic sludge and the solid sludge are dispersed. A method for drying treatment of organic sludge, wherein a mixture of fine particles is put into the dryer. 前記固形細粒体が、多孔質材であることを特徴とする請求項１記載の有機性汚泥の乾燥処理方法。   2. The organic sludge drying treatment method according to claim 1, wherein the solid fine particles are a porous material. 前記固形細粒体が、木屑を含む木質バイオマス若しくは石炭であることを特徴とする請求項１若しくは２記載の有機性汚泥の乾燥処理方法。   The method for drying treatment of organic sludge according to claim 1 or 2, wherein the solid fine particles are woody biomass or coal containing wood chips. 前記固形細粒体の混合量が、前記有機性汚泥に対して１〜５０重量％であることを特徴とする請求項１乃至３の何れかに記載の有機性汚泥の乾燥処理方法。   The method for drying treatment of organic sludge according to any one of claims 1 to 3, wherein the mixing amount of the solid fine particles is 1 to 50 wt% with respect to the organic sludge. 有機性汚泥の投入部と、該有機性汚泥を乾燥させる加熱空間と、該加熱空間内の有機性汚泥を撹拌する撹拌パドルとを有する乾燥機を備えた有機性汚泥の乾燥処理システムにおいて、
前記乾燥機の前段に、前記有機性汚泥と、炭素分を含み粒径が数ミリ以下の固形細粒体とを予混合して該固形細粒体を有機性汚泥中に分散させる予混合機を設け、該予混合機から排出された混合物を前記乾燥機の投入部に投入するようにしたことを特徴とする有機性汚泥の乾燥処理システム。 In an organic sludge drying treatment system comprising a drying unit having an input portion of organic sludge, a heating space for drying the organic sludge, and a stirring paddle for stirring the organic sludge in the heating space,
A premixer for pre-mixing the organic sludge and solid fine particles containing carbon and having a particle size of several millimeters or less in the front stage of the dryer and dispersing the solid fine particles in the organic sludge The organic sludge drying treatment system is characterized in that the mixture discharged from the premixer is fed into the charging unit of the dryer. 有機性汚泥の投入部と、該有機性汚泥を乾燥させる加熱空間と、該加熱空間内の有機性汚泥を撹拌する撹拌パドルとを有する乾燥機を備えた有機性汚泥の乾燥処理システムにおいて、
前記乾燥機の前段に、炭素分を含む固形体を粒径数ミリ以下まで粉砕して固形細粒体を得る粉砕手段と、該固形細粒体と前記有機性汚泥とを予混合し、該固形細粒体を有機性汚泥中に分散させる予混合機とを設け、該予混合機から排出された混合物を前記乾燥機の投入部に投入するようにしたことを特徴とする有機性汚泥の乾燥処理システム。 In an organic sludge drying treatment system comprising a drying unit having an input portion of organic sludge, a heating space for drying the organic sludge, and a stirring paddle for stirring the organic sludge in the heating space,
In the front stage of the dryer, a pulverizing means for pulverizing a solid material containing carbon to a particle size of several millimeters or less to obtain a solid fine particle, the solid fine particle and the organic sludge are premixed, A premixer that disperses the solid fine particles in the organic sludge, and the mixture discharged from the premixer is charged into the charging unit of the dryer. Drying processing system. 前記固形細粒体が、多孔質材であることを特徴とする請求項５若しくは６記載の有機性汚泥の乾燥処理システム。   7. The organic sludge drying treatment system according to claim 5, wherein the solid fine particles are a porous material. 前記固形細粒体が、木屑を含む木質バイオマス若しくは石炭であることを特徴とする請求項５乃至７の何れかに記載の有機性汚泥の乾燥処理システム。   The organic sludge drying treatment system according to any one of claims 5 to 7, wherein the solid fine particles are woody biomass or coal containing wood chips. 前記固形細粒体の混合量が、前記有機性汚泥に対して１〜５０重量％であることを特徴とする請求項５乃至８の何れかに記載の有機性汚泥の乾燥処理システム。   The organic sludge drying treatment system according to any one of claims 5 to 8, wherein a mixing amount of the solid fine particles is 1 to 50% by weight with respect to the organic sludge. 前記乾燥機は、内部が真空吸引された真空乾燥機であることを特徴とする請求項５若しくは６記載の有機性汚泥の乾燥処理システム。   The organic sludge drying treatment system according to claim 5 or 6, characterized in that the dryer is a vacuum dryer with the vacuum suction inside. 前記乾燥機の撹拌パドル或いは回転軸の少なくとも何れか一方が、テフロン（登録商標）コーティングされていることを特徴とする請求項５若しくは６記載の有機性汚泥の乾燥処理システム。   7. The organic sludge drying treatment system according to claim 5, wherein at least one of the stirring paddle and the rotating shaft of the dryer is coated with Teflon (registered trademark).
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102538426A (en) * 2012-02-29 2012-07-04 南京天华化学工程有限公司 Continuous drying process and equipment for cyclohexanone oximation catalyst
WO2013133260A1 (en) * 2012-03-07 2013-09-12 カヤバ工業株式会社 Suspension device
JP2013217553A (en) * 2012-04-06 2013-10-24 Metawater Co Ltd Sludge mixing and throw-in method, and sludge mixing and throw-in device
KR101610926B1 (en) 2013-10-28 2016-04-08 한국에너지기술연구원 Combined Dryer Using Industrial Waste Heat Of Organic Waste
CN109761476A (en) * 2019-03-26 2019-05-17 浙江浙安机械制造有限公司 A kind of chemical engineering sludge drier special

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160055A (en) * 1978-06-08 1979-12-18 Hitachi Zosen Corp Drainage disposal method that use powder of chaff, etc.
JPS6082192A (en) * 1983-10-13 1985-05-10 Ebara Infilco Co Ltd Treatment of organic sludge
JPS61252291A (en) * 1985-04-30 1986-11-10 Hitachi Plant Eng & Constr Co Ltd Method of operating apparatus for converting sludge into fuel
JPS6242797A (en) * 1985-08-15 1987-02-24 Onoda Cement Co Ltd Improvement of carbonaceous sludge cake
JPS63232900A (en) * 1987-03-20 1988-09-28 Kubota Ltd Method for dehydrating sludge
JPH10309600A (en) * 1997-05-09 1998-11-24 Nippon Alum Co Ltd Granulated material of sludge for recycled resource and its production method
WO2001030708A1 (en) * 1999-10-29 2001-05-03 Asahi Engineering Corporation Clarification treatment apparatus and method for clarification treatment
JP2002045120A (en) * 2000-07-31 2002-02-12 Unkai Method and apparatus for treating alcohol lees
JP2002143897A (en) * 2000-11-10 2002-05-21 Sumitomo Heavy Ind Ltd Fermenting and drying machine
JP2003055666A (en) * 2001-08-21 2003-02-26 Kankyo Sekkei Setsubi:Kk Process and apparatus whereby liquid organic waste, organic sludge, garbage, animal/vegetable residue, animal feces and urine, wood scrap, weeds, tree branch, leaves, etc., are dried, granulated, gasified with carbonization oven, and recycled as fuel and charcoal
JP2004189875A (en) * 2002-12-11 2004-07-08 Nippon Steel Corp Method for treating sewage sludge cake
JP2007105565A (en) * 2005-10-11 2007-04-26 Katsuragi Kogyo Kk Apparatus and method for drying sludge
JP2008049318A (en) * 2006-08-28 2008-03-06 Kurimoto Ltd Treatment method of sludge

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54160055A (en) * 1978-06-08 1979-12-18 Hitachi Zosen Corp Drainage disposal method that use powder of chaff, etc.
JPS6082192A (en) * 1983-10-13 1985-05-10 Ebara Infilco Co Ltd Treatment of organic sludge
JPS61252291A (en) * 1985-04-30 1986-11-10 Hitachi Plant Eng & Constr Co Ltd Method of operating apparatus for converting sludge into fuel
JPS6242797A (en) * 1985-08-15 1987-02-24 Onoda Cement Co Ltd Improvement of carbonaceous sludge cake
JPS63232900A (en) * 1987-03-20 1988-09-28 Kubota Ltd Method for dehydrating sludge
JPH10309600A (en) * 1997-05-09 1998-11-24 Nippon Alum Co Ltd Granulated material of sludge for recycled resource and its production method
WO2001030708A1 (en) * 1999-10-29 2001-05-03 Asahi Engineering Corporation Clarification treatment apparatus and method for clarification treatment
JP2002045120A (en) * 2000-07-31 2002-02-12 Unkai Method and apparatus for treating alcohol lees
JP2002143897A (en) * 2000-11-10 2002-05-21 Sumitomo Heavy Ind Ltd Fermenting and drying machine
JP2003055666A (en) * 2001-08-21 2003-02-26 Kankyo Sekkei Setsubi:Kk Process and apparatus whereby liquid organic waste, organic sludge, garbage, animal/vegetable residue, animal feces and urine, wood scrap, weeds, tree branch, leaves, etc., are dried, granulated, gasified with carbonization oven, and recycled as fuel and charcoal
JP2004189875A (en) * 2002-12-11 2004-07-08 Nippon Steel Corp Method for treating sewage sludge cake
JP2007105565A (en) * 2005-10-11 2007-04-26 Katsuragi Kogyo Kk Apparatus and method for drying sludge
JP2008049318A (en) * 2006-08-28 2008-03-06 Kurimoto Ltd Treatment method of sludge

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102538426A (en) * 2012-02-29 2012-07-04 南京天华化学工程有限公司 Continuous drying process and equipment for cyclohexanone oximation catalyst
WO2013133260A1 (en) * 2012-03-07 2013-09-12 カヤバ工業株式会社 Suspension device
JP2013185627A (en) * 2012-03-07 2013-09-19 Kyb Co Ltd Suspension device
US9388878B2 (en) 2012-03-07 2016-07-12 Kyb Corporation Suspension device
JP2013217553A (en) * 2012-04-06 2013-10-24 Metawater Co Ltd Sludge mixing and throw-in method, and sludge mixing and throw-in device
KR101610926B1 (en) 2013-10-28 2016-04-08 한국에너지기술연구원 Combined Dryer Using Industrial Waste Heat Of Organic Waste
CN109761476A (en) * 2019-03-26 2019-05-17 浙江浙安机械制造有限公司 A kind of chemical engineering sludge drier special

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