JP7110801B2 - Multiple disc dehydrator - Google Patents

Multiple disc dehydrator Download PDF

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JP7110801B2
JP7110801B2 JP2018144761A JP2018144761A JP7110801B2 JP 7110801 B2 JP7110801 B2 JP 7110801B2 JP 2018144761 A JP2018144761 A JP 2018144761A JP 2018144761 A JP2018144761 A JP 2018144761A JP 7110801 B2 JP7110801 B2 JP 7110801B2
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剛 中野
達也 千賀
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Tsurumi Manufacturing Co Ltd
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Description

この発明は、多重円板型脱水機に関し、特に、複数の積層状回転ろ体を備える多重円板型脱水機に関する。 The present invention relates to a multi-disk dehydrator, and more particularly to a multi-disk dehydrator provided with a plurality of laminated rotary filter bodies.

従来、積層状回転ろ体を備える多重円板型脱水機が知られている(たとえば、特許文献1参照)。 BACKGROUND ART Conventionally, a multi-disc type dehydrator provided with laminated rotary filter bodies is known (see Patent Document 1, for example).

上記特許文献1には、回転軸および積層状回転ろ体を含む複数の回転体と、回転軸の軸方向において、積層状回転ろ体を挟むように設けられる一対の側板を含む処理槽とを備える多重円板型脱水機が開示されている。多重円板型脱水機は、処理槽内で、積層状回転ろ体により汚泥(被処理物)の脱水を行い排出口から水分を除去された脱水汚泥(脱水ケーキ)を排出するように構成されている。 In the above Patent Document 1, a plurality of rotating bodies including a rotating shaft and a laminated rotating filter body, and a processing tank including a pair of side plates provided so as to sandwich the laminated rotating filter body in the axial direction of the rotating shaft. A multi-disc dehydrator is disclosed comprising: The multiple disk type dehydrator is configured to dehydrate sludge (substance to be treated) in a treatment tank by means of laminated rotary filter bodies, and to discharge dewatered sludge (dehydrated cake) from a discharge port. ing.

特開平10-137795号公報JP-A-10-137795

しかしながら、上記特許文献1のような多重円板型脱水機では、すべり性の悪い被処理物の脱水処理を行う場合、被処理物が処理槽の一対の側板と接触することにより、回転軸の軸方向の外側の被処理物に対して摩擦力(ブレーキ)が加わることに起因して、軸方向における中央部分と比較して、一対の側板の近傍部分では、排出口からの被処理物(脱水ケーキ)の排出量が少なくなるという不都合がある。このため、被処理物が排出口の軸方向において均等に排出されないため、排出口から被処理物が効率よく排出されないという問題点がある。 However, in the multi-disc type dehydrator as disclosed in Patent Document 1, when dehydrating an object to be treated that has poor slipperiness, the object to be treated contacts the pair of side plates of the treatment tank, causing the rotation of the rotating shaft. Due to the frictional force (brake) applied to the work piece on the outer side in the axial direction, the work piece ( There is an inconvenience that the discharge amount of dehydrated cake) is reduced. As a result, the object to be treated is not discharged evenly in the axial direction of the discharge port, so there is a problem that the object to be processed is not efficiently discharged from the discharge port.

この発明は、上記のような課題を解決するためになされたものであり、この発明の1つの目的は、排出口から被処理物を効率よく排出することが可能な多重円板型脱水機を提供することである。 SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and one object of the present invention is to provide a multi-disc dehydrator capable of efficiently discharging materials to be treated from a discharge port. to provide.

この発明の一の局面による多重円板型脱水機は、回転軸と、回転軸の軸方向に沿って積層された複数のろ片を有し、ろ片間にろ過溝が形成された積層状回転ろ体とを含み、上下2列で隣接して設けられる複数の回転体と、回転軸の軸方向において、積層状回転ろ体を挟むように設けられる一対の第1側板を含む処理槽と、ろ片の最大直径よりも大きな直径を有し、回転体とともに回転可能なように第1側板と積層状回転ろ体との間に設けられる円板部材と、上下列の複数の回転体のうち最下流の積層状回転ろ体に詰まった固形物を掻き取るように構成されているスクレイパーと、処理槽の供給口が設けられた第2側板の内表面と下列の最上流の回転体との間に設けられているシール部材と、を備え、円板部材は、下列の複数の回転体のうち被処理物の固体成分を送る方向の最上流の回転体および最下流の回転体には設けられておらず、最上流の回転体と最下流の回転体との間に位置する回転体に設けられているとともに、上列の複数の回転体のうち最下流の回転体には設けられておらず、最下流の回転体よりも上流側に位置する回転体に設けられる。 A multi-disc dehydrator according to one aspect of the present invention has a rotating shaft and a plurality of filter pieces stacked along the axial direction of the rotating shaft. a plurality of rotating bodies provided adjacent to each other in two vertical rows, and a processing tank including a pair of first side plates provided so as to sandwich the stacked rotating filter bodies in the axial direction of the rotating shaft. , a disk member having a diameter larger than the maximum diameter of the filter pieces and provided between the first side plate and the laminated rotating filter body so as to be rotatable together with the rotating body; and a plurality of rotating bodies arranged in upper and lower rows. Among them, a scraper configured to scrape off solid matter clogged in the most downstream layered rotary filter, the inner surface of the second side plate provided with the supply port of the treatment tank, and the most upstream rotating body in the lower row. and a sealing member provided between the disk members, and the disk member is provided on the most upstream rotating body and the most downstream rotating body in the direction of sending the solid component of the object to be processed among the plurality of rotating bodies in the lower row. is not provided, is provided on the rotating body positioned between the most upstream rotating body and the most downstream rotating body, and is provided on the most downstream rotating body among the plurality of upper row rotating bodies. It is provided on a rotating body located upstream of the most downstream rotating body.

この発明の一の局面による多重円板型脱水機では、上記のように、円板部材が回転体とともに回転することにより、第1側板付近の被処理物を排出口に向けて送ることができる。また、円板部材はろ片の最大直径よりも大きな直径を有するので、円板部材はろ片よりも被処理物に対して大きく食い込いこませて被処理物に対する推進力を生む面積を広く確保することができ、円板部材が配置される第1側板近傍において、ろ片よりも大きい推進力を被処理物に与えることができる。以上の結果、被処理物に対して摩擦力(ブレーキ)が大きく生じる回転軸の軸方向の外側において、被処理物に大きい推進力を与えることにより、回転軸の軸方向における被処理物の送り量を均等化して排出口から排出することができるので、排出口から被処理物(脱水ケーキ)を効率よく排出することができる。ここで、一般的な多重円板型脱水機では、上下列の最下流の回転体にはそれぞれスクレイパー(回転体から固形物を掻き取る部材)が設けられ、下列の最上流の回転体にはシール部材(回転体と処理槽の内表面との間の隙間を埋める部材)が設けられている。このような多重円板型脱水機において、上記のように構成すれば、円板部材と、スクレイパーおよびシール部材とが互いに干渉するのを回避することができる。 In the multiple disc dehydrator according to one aspect of the present invention, as described above, the disc members rotate together with the rotating body, so that the material to be processed near the first side plate can be sent toward the discharge port. . In addition, since the disk member has a diameter larger than the maximum diameter of the filter pieces, the disk member is made to bite into the object to be processed more than the filter piece, ensuring a wide area for generating a driving force to the object to be processed. In the vicinity of the first side plate where the disk member is arranged, a greater driving force than the filter piece can be applied to the object to be processed. As a result of the above, by applying a large propulsive force to the workpiece on the axial outer side of the rotating shaft where a large frictional force (brake) is applied to the workpiece, it is possible to feed the workpiece in the axial direction of the rotating shaft. Since the amount can be equalized and discharged from the discharge port, the object to be treated (dehydrated cake) can be efficiently discharged from the discharge port. Here, in a general multi-disk type dehydrator, a scraper (a member for scraping solid matter from the rotating body) is provided on each of the upper and lower rows of rotating bodies at the most downstream side, and a A sealing member (a member that fills the gap between the rotating body and the inner surface of the processing bath) is provided. In such a multi-disc type dehydrator, if it is configured as described above, it is possible to avoid mutual interference between the disc member, the scraper, and the seal member.

上記一の局面による多重円板型脱水機において、好ましくは、円板部材は、回転軸の軸方向において、積層状回転ろ体の両側にそれぞれ設けられている。このように構成すれば、積層状回転ろ体の両側で、側板付近の被処理物を効果的に排出口に向けて送ることができる。その結果、排出口から被処理物(脱水ケーキ)をより効率よく排出することができる。 In the multiple disc dehydrator according to the above aspect, preferably, the disc members are provided on both sides of the laminated rotary filter body in the axial direction of the rotary shaft. According to this structure, it is possible to effectively send the object to be processed near the side plates toward the discharge port on both sides of the laminated rotary filter body. As a result, the object to be treated (dehydrated cake) can be more efficiently discharged from the discharge port.

上記一の局面による多重円板型脱水機において、好ましくは、ろ片は、複数の小径円板ろ片と、小径円板ろ片よりも大きな直径を有する複数の中径円板ろ片と、中径円板ろ片よりも大きな直径を有する複数の大径円板ろ片とを有し、円板部材は、大径円板ろ片よりも大きな直径を有している。このように構成すれば、円板部材は大径円板ろ片の直径よりも大きな直径を有するので、円板部材は大径円板ろ片よりも被処理物に対して大きく食い込いこませて被処理物に対する推進力を生む面積を広く確保することができ、円板部材が配置される側板近傍において、大径円板ろ片よりも大きい力で被処理物を搬送することができる。これにより、被処理物に対して摩擦力(ブレーキ)が大きく生じる回転軸の軸方向の外側において、被処理物に大きい推進力を与えることができるので、排出口から被処理物(脱水ケーキ)をより効率よく排出することができる。 In the multiple disc dehydrator according to the above aspect, the filter pieces preferably include a plurality of small-diameter disc filter pieces, a plurality of medium-diameter disc filter pieces having a larger diameter than the small-diameter disc filter pieces, and a plurality of large-diameter disc filter pieces having a larger diameter than the medium-diameter disc filter pieces, and the disc member has a larger diameter than the large-diameter disc filter pieces. With this configuration, the disk member has a diameter larger than that of the large-diameter disk filter piece, so that the disk member bites into the object to be processed more than the large-diameter disk filter piece. In the vicinity of the side plate where the disk member is arranged, the object to be treated can be conveyed with a force greater than that of the large-diameter disk filter piece. As a result, a large propulsive force can be applied to the object to be treated on the outside in the axial direction of the rotating shaft where a large frictional force (brake) is applied to the object to be treated. can be discharged more efficiently.

上記一の局面による多重円板型脱水機において、好ましくは、回転体は、被処理物の供給口側から排出口側に向けて上下2列で複数設けられており、軸方向から見て、列ごとに互いに重なり合うように隣接して配置され、円板部材は、上下2列の列ごとに隣接する複数の回転体に対して、少なくとも、1つおきに設けられている。このように構成すれば、複数の円板部材を、回転軸の軸方向に直交する方向において互いに干渉することなく配置することができる。 In the multiple disc dehydrator according to the above aspect, preferably, a plurality of rotating bodies are provided in two upper and lower rows from the supply port side of the material to be processed toward the discharge port side, and when viewed from the axial direction, The disk members are arranged adjacent to each other so as to overlap each other for each row, and the disk members are provided at least every other row for a plurality of rotating bodies adjacent for each row of two upper and lower rows. With this configuration, the plurality of disk members can be arranged without interfering with each other in the direction orthogonal to the axial direction of the rotating shaft.

上記一の局面による多重円板型脱水機において、好ましくは、第1側板と円板部材との間には、第1側板と円板部材との両方に接触し、円板部材およびろ片よりも小さな直径を有するスペーサ部材が設けられている。このように構成すれば、スペーサ部材を設けることなく第1側板(第1側板の内表面)と円板部材とを直接接触させた場合の回転体に掛かる抵抗(第1側板と円板部材との間の摩擦により回転体に掛かる力)と比較して、回転体に掛かる抵抗(円板部材とスペーサ部材との間、または、第1側板とスペーサ部材との間の摩擦により回転体に掛かる力)を低減することができる。 In the multiple disc dehydrator according to the above aspect, preferably, between the first side plate and the disc member, contact is made with both the first side plate and the disc member, and the disc member and the filter piece contact each other. A spacer member having a smaller diameter is provided. With this configuration, the resistance applied to the rotating body when the first side plate (the inner surface of the first side plate) and the disk member are brought into direct contact without providing a spacer member (the resistance between the first side plate and the disk member force applied to the rotating body due to friction between force) can be reduced.

上記一の局面による多重円板型脱水機において、好ましくは、円板部材の半径は、隣接する回転体の回転中心軸線間の距離から回転軸の半径を差し引いた値よりも小さい。このように構成すれば、円板部材が、隣接する回転体の回転軸に干渉するのを防止することができる。 In the multiple disc dehydrator according to the above aspect, preferably, the radius of the disc members is smaller than the distance between the rotation center axes of the adjacent rotors minus the radius of the rotation shaft. With this configuration, it is possible to prevent the disk member from interfering with the rotating shaft of the adjacent rotating body.

本発明によれば、上記のように、排出口から被処理物を効率よく排出することが可能な多重円板型脱水機を提供することができる。 According to the present invention, as described above, it is possible to provide a multi-disc dehydrator capable of efficiently discharging the material to be treated from the discharge port.

本発明の一実施形態による多重円板型脱水機を斜め上方から見た断面図である。1 is a cross-sectional view of a multi-disc dehydrator according to an embodiment of the present invention, viewed obliquely from above; FIG. 本発明の一実施形態による多重円板型脱水機を側方から見た断面図である。1 is a side cross-sectional view of a multi-disc dehydrator according to an embodiment of the present invention; FIG. 本発明の一実施形態による多重円板型脱水機の積層状回転ろ体と円板部材と一対の側板とを拡大して示した断面図である。1 is an enlarged cross-sectional view showing a laminated rotary filter body, a disk member, and a pair of side plates of a multi-disk dehydrator according to an embodiment of the present invention; FIG. 本発明の一実施形態による多重円板型脱水機の積層状回転ろ体および円板部材の分解斜視図である。1 is an exploded perspective view of a laminated rotary filter body and disk members of a multi-disk dehydrator according to one embodiment of the present invention; FIG.

以下、本発明の実施形態を図面に基づいて説明する。 BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

(多重円板型脱水機の構成)
図1~図4を参照して、本発明の一実施形態による多重円板型脱水機100について説明する。
(Structure of multiple disc dehydrator)
A multi-disc dehydrator 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG.

図1に示す多重円板型脱水機100は、供給された被処理物(原液)を、固体成分と液体成分とに分離するように構成されている。また、多重円板型脱水機100は、分離した液体成分を処理槽1の下部に設けられたろ液貯留部(図示せず)に貯留するように構成されている。 The multi-disc dehydrator 100 shown in FIG. 1 is configured to separate a supplied material to be processed (stock solution) into a solid component and a liquid component. Also, the multi-disc dehydrator 100 is configured to store the separated liquid components in a filtrate storage section (not shown) provided in the lower portion of the treatment tank 1 .

多重円板型脱水機100は、図1に示すように、処理槽1と、複数の回転体2と、シール部材3と、スクレイパー(掻き取り板)4と、排出シュート5と、円板部材6とを備えている。 As shown in FIG. 1, the multi-disk type dehydrator 100 includes a processing tank 1, a plurality of rotating bodies 2, a seal member 3, a scraper (scraping plate) 4, a discharge chute 5, and a disk member. 6.

処理槽1は、腐食しにくい材料により形成されている。たとえば、処理槽1は、ステンレス材料により形成されている。処理槽1は、直方体形状を有している。処理槽1は、互いに水平方向に対向する一対の側板10と、一対の側板11(図1および図2では、一対の側板11のうち一方のみを示している)とを含んでいる。一対の側板10の一方には、被処理物(原液)の供給口10aが設けられ、一対の側板10の他方には、被処理物(脱水ケーキ)の排出口10bが設けられている。 The processing tank 1 is made of a material that is resistant to corrosion. For example, the processing bath 1 is made of stainless material. The processing tank 1 has a rectangular parallelepiped shape. The processing bath 1 includes a pair of side plates 10 and a pair of side plates 11 (only one of the pair of side plates 11 is shown in FIGS. 1 and 2) facing each other in the horizontal direction. One of the pair of side plates 10 is provided with a supply port 10a for the material to be processed (undiluted solution), and the other of the pair of side plates 10 is provided with a discharge port 10b for the material to be processed (dehydrated cake).

以下では、水平方向のうち一対の側板10が並ぶ方向(供給口10aと排出口10bとが並ぶ方向)をX方向とし、水平方向のうちX方向に直交する方向(一対の側板11が並ぶ方向)をY方向とする。なお、Y方向は、後述する回転軸21の軸方向でもある。X方向のうち、供給口10aから排出口10bに向かう方向をX1方向とし、その逆方向をX2方向とする。また、上下方向をZ方向とする。 Hereinafter, the horizontal direction in which the pair of side plates 10 are arranged (the direction in which the supply port 10a and the discharge port 10b are arranged) is defined as the X direction, and the horizontal direction perpendicular to the X direction (the direction in which the pair of side plates 11 are arranged). ) is the Y direction. The Y direction is also the axial direction of the rotating shaft 21, which will be described later. Of the X directions, the direction from the supply port 10a to the discharge port 10b is defined as the X1 direction, and the opposite direction is defined as the X2 direction. Also, the vertical direction is defined as the Z direction.

回転体2は、被処理物の供給口10a側から排出口10b側に向けて上下2列で複数設けられている。具体的には、回転体2は、下列に8個、上列に6個の合計14個が配置されている。 A plurality of rotating bodies 2 are provided in two upper and lower rows from the supply port 10a side of the material to be processed toward the discharge port 10b side. Specifically, a total of 14 rotors 2 are arranged, 8 in the lower row and 6 in the upper row.

図2に示すように、回転体2は、後述する回転軸21の軸方向(Y方向)から見て、列ごとに互いに重なり合うように隣接して配置されている。上列の回転体2と、下列の回転体2との間の上下(Z方向)の間隔は、供給口10a側から排出口10b側(X2方向)に向かうにしたがって狭くなるように構成されている。上列および下列の回転体2は、それぞれ、供給口10a側から排出口10b側(X2方向)に向かうにつれて斜め上方に傾斜するように配置されている。 As shown in FIG. 2 , the rotating bodies 2 are arranged adjacent to each other so as to overlap each other in each row when viewed from the axial direction (Y direction) of a rotating shaft 21 to be described later. The vertical (Z direction) interval between the upper row of rotors 2 and the lower row of rotors 2 is configured to be narrowed from the supply port 10a side to the discharge port 10b side (X2 direction). there is The rotating bodies 2 in the upper row and the lower row are arranged so as to incline obliquely upward from the side of the supply port 10a toward the side of the discharge port 10b (X2 direction).

また、下列の複数の回転体2は、所定の間隔を隔てて配置されており、互いに同じ方向(図2において時計回り)に回転することにより、固体成分を搬送するように構成されている。また、上列の複数の回転体2は、所定の間隔を隔てて配置されており、互いに同じ方向(図2において反時計回り)に回転することにより、固体成分を搬送するように構成されている。 A plurality of rotating bodies 2 in the lower row are arranged at predetermined intervals, and configured to convey solid components by rotating in the same direction (clockwise in FIG. 2). In addition, the plurality of rotating bodies 2 in the upper row are arranged at predetermined intervals, and configured to convey solid components by rotating in the same direction (counterclockwise in FIG. 2). there is

回転体2は、積層状回転ろ体20と、Y方向に延びる回転軸21とを含んでいる。積層状回転ろ体20と回転軸21とには、それぞれ、キー溝が設けられている。積層状回転ろ体20と回転軸21とは、キー溝に嵌め込まれるキー(係合部材)により互いに同期して回転するように構成されている。回転軸21は、一対の側板11を貫通し、処理槽1の外側で軸受により支持されている。回転軸21の端部には、回転体2に駆動力(トルク)を付与するモータ(図示せず)が設けられている。 The rotating body 2 includes a laminated rotating filter body 20 and a rotating shaft 21 extending in the Y direction. A key groove is provided in each of the laminated rotary filter body 20 and the rotating shaft 21 . The laminated rotary filter body 20 and the rotating shaft 21 are configured to rotate in synchronization with each other by a key (engagement member) fitted in a key groove. The rotating shaft 21 passes through the pair of side plates 11 and is supported outside the treatment tank 1 by bearings. A motor (not shown) that applies a driving force (torque) to the rotating body 2 is provided at the end of the rotating shaft 21 .

図3に示すように、積層状回転ろ体20は、複数の中径円板ろ片22と、複数の小径円板ろ片23と、複数の大径円板ろ片24と含んでいる。中径円板ろ片22は、小径円板ろ片23の直径d1よりも大きな直径d2を有している(d1<d2)。また、大径円板ろ片24は、中径円板ろ片22の直径d2よりも大きな直径d3を有している(d2<d3)。中径円板ろ片22は、樹脂材料により形成されている。小径円板ろ片23および大径円板ろ片24は、金属材料により形成されている。なお、中径円板ろ片22、小径円板ろ片23および大径円板ろ片24は、それぞれ、特許請求の範囲の「ろ片」の一例である。 As shown in FIG. 3 , the laminated rotary filter body 20 includes a plurality of medium-diameter disc filter pieces 22 , a plurality of small-diameter disc filter pieces 23 , and a plurality of large-diameter disc filter pieces 24 . The medium-diameter disc filter piece 22 has a diameter d2 larger than the diameter d1 of the small-diameter disc filter piece 23 (d1<d2). Also, the large-diameter disc filter piece 24 has a diameter d3 larger than the diameter d2 of the medium-diameter disc filter piece 22 (d2<d3). The medium-diameter disc filter piece 22 is made of a resin material. The small-diameter disc filter piece 23 and the large-diameter disc filter piece 24 are made of a metal material. The medium-diameter disc filter piece 22, the small-diameter disc filter piece 23, and the large-diameter disc filter piece 24 are each an example of the "filter piece" in the claims.

積層状回転ろ体20の中で最も大きな直径を有する大径円板ろ片24が被処理物に食い込んだ状態で、回転軸21の回転と同期して回転することにより、被処理物を排出口10bへ搬送することができる。 The large-diameter disk filter pieces 24, which have the largest diameter among the laminated rotary filter bodies 20, bite into the material to be processed, and rotate in synchronism with the rotation of the rotating shaft 21, thereby discharging the material to be processed. It can be transported to the outlet 10b.

積層状回転ろ体20は、Y方向に互いに接触状態で並ぶ複数の中径円板ろ片22間に、大径円板ろ片24および小径円板ろ片23を交互に配置(積層)することにより構成されている。積層状回転ろ体20は、回転軸21の軸方向(Y方向)に沿って積層されたろ片(中径円板ろ片22、小径円板ろ片23、大径円板ろ片24)間にろ過溝(隙間)Gが形成されている。 In the laminated rotary filter body 20, large-diameter disk filter pieces 24 and small-diameter disk filter pieces 23 are alternately arranged (stacked) between a plurality of medium-diameter disk filter pieces 22 arranged in contact with each other in the Y direction. It is composed by In the laminated rotary filter body 20, between the filter pieces (medium-diameter disk filter piece 22, small-diameter disk filter piece 23, large-diameter disk filter piece 24) laminated along the axial direction (Y direction) of the rotating shaft 21 Filtration grooves (gap) G are formed in.

詳細には、図4に示すように、中径円板ろ片22には、一方表面および他方表面に、それぞれ、Y方向に突出する複数の凸部22aおよび複数の凸部22bが設けられている。複数の凸部22aおよび複数の凸部22bは、それぞれ、中径円板ろ片22の周方向に略等角度間隔(90度間隔)で設けられている。なお、凸部22aの突出量は、凸部22bの突出量と比較して十分に大きい。隣接する中径円板ろ片22間には、凸部22aおよび凸部22bが互いに当接して小径円板ろ片23または大径円板ろ片24が配置される隙間が形成されている。そして、Y方向において、中径円板ろ片22と小径円板ろ片23との間、および、中径円板ろ片22と大径円板ろ片24との間には、それぞれ、ろ液を排出するろ過溝G(隙間)(図3参照)が形成されている。 More specifically, as shown in FIG. 4, the middle-diameter disc filter piece 22 is provided with a plurality of protrusions 22a and a plurality of protrusions 22b protruding in the Y direction on one surface and the other surface, respectively. there is The plurality of protrusions 22a and the plurality of protrusions 22b are provided at approximately equal angular intervals (90-degree intervals) in the circumferential direction of the medium-diameter disc filter piece 22, respectively. In addition, the amount of projection of the convex portion 22a is sufficiently large compared to the amount of projection of the convex portion 22b. Between the adjacent medium-diameter disc filter pieces 22, a gap is formed in which the small-diameter disc filter piece 23 or the large-diameter disc filter piece 24 is arranged with the protrusions 22a and the protrusions 22b in contact with each other. In the Y direction, between the medium-diameter disc filter piece 22 and the small-diameter disc filter piece 23, and between the medium-diameter disc filter piece 22 and the large-diameter disc filter piece 24, there are filter Filtration grooves G (gap) (see FIG. 3) for discharging liquid are formed.

小径円板ろ片23には、凸部22aおよび凸部22bに係合する複数の切欠部23aが外周部に設けられている。複数の切欠部23aは、小径円板ろ片23の周方向に略等角度間隔(90度間隔)で設けられている。小径円板ろ片23の厚みは、凸部22aの突出量よりも小さい。このため、小径円板ろ片23は、凸部22aおよび凸部22bに係合した状態で、回転軸21の軸方向(Y方向)に揺動可能に構成されている。 The small-diameter disc filter piece 23 is provided with a plurality of cutouts 23a that engage with the projections 22a and the projections 22b. The plurality of notches 23a are provided at approximately equal angular intervals (90-degree intervals) in the circumferential direction of the small-diameter disc filter piece 23 . The thickness of the small-diameter disc filter piece 23 is smaller than the protrusion amount of the convex portion 22a. Therefore, the small-diameter disc filter piece 23 is configured to be able to swing in the axial direction (Y direction) of the rotary shaft 21 while being engaged with the protrusions 22a and 22b.

大径円板ろ片24には、凸部22aおよび凸部22bに嵌合する複数の貫通穴24aが設けられている。複数の貫通穴24aは、大径円板ろ片24の周方向に略等角度間隔(90度間隔)で設けられている。大径円板ろ片24の厚みは、凸部22aの突出量よりも小さい。このため、大径円板ろ片24は、凸部22aおよび凸部22bに係合した状態で、回転軸21の軸方向(Y方向)に揺動可能に構成されている。大径円板ろ片24は、小径円板ろ片23と略同じ厚みを有している。 The large-diameter disc filter piece 24 is provided with a plurality of through-holes 24a that fit into the convex portions 22a and 22b. The plurality of through-holes 24a are provided at approximately equal angular intervals (90-degree intervals) in the circumferential direction of the large-diameter disc filter piece 24 . The thickness of the large-diameter disc filter piece 24 is smaller than the protrusion amount of the convex portion 22a. Therefore, the large-diameter disc filter piece 24 is configured to be able to swing in the axial direction (Y direction) of the rotating shaft 21 while being engaged with the protrusions 22a and 22b. The large-diameter disc filter piece 24 has substantially the same thickness as the small-diameter disc filter piece 23 .

図2に示すように、シール部材3は、処理槽1の供給口10aが設けられた側板10の内表面と、下列の最上流の回転体2との間の隙間を埋めるように設けられている。このシール部材3により、多重円板型脱水機100は、供給口10aから供給された被処理物(固分を多く含む被処理物)が、そのまま、ろ液貯留部(図示せず)に流出するのを防止している。 As shown in FIG. 2, the sealing member 3 is provided so as to fill the gap between the inner surface of the side plate 10 provided with the supply port 10a of the processing tank 1 and the most upstream rotor 2 in the lower row. there is With this sealing member 3, the multi-disc type dehydrator 100 allows the material to be processed (the material to be processed containing a large amount of solids) supplied from the supply port 10a to flow directly into the filtrate reservoir (not shown). prevent you from doing so.

スクレイパー4は、処理槽1の排出口10bが設けられた側板10と下列の最下流の回転体2との間、および、処理槽1の排出口10bが設けられた側板10と上列の最下流の回転体2との間に、それぞれ設けられている。スクレイパー4は、最下流の積層状回転ろ体20に詰まった固形物を掻き取るように構成されている。 The scraper 4 is located between the side plate 10 provided with the discharge port 10b of the processing tank 1 and the lower most downstream rotor 2, and between the side plate 10 provided with the discharge port 10b of the processing tank 1 and the uppermost rotor 2. They are respectively provided between the rotating bodies 2 downstream. The scraper 4 is configured to scrape solid matter clogging the most downstream layered rotary filter body 20 .

排出シュート5は、排出口10bに設けられ、処理槽1から排出された被処理物(脱水ケーキ)の排出経路を構成している。排出シュート5は、処理槽1側から斜め下方に傾斜しており、ホッパー(図示せず)などに被処理物(脱水ケーキ)を送る(導く)ように構成されている。排出シュート5には、排出口10bから排出された被処理物(脱水ケーキ)を加圧するためのフラッパー51およびフラッパー加圧ネジ52が設けられている。 The discharge chute 5 is provided at the discharge port 10b and constitutes a discharge path for the object to be treated (dehydrated cake) discharged from the treatment tank 1. As shown in FIG. The discharge chute 5 is inclined obliquely downward from the processing tank 1 side, and is configured to send (guide) the object to be processed (dehydrated cake) to a hopper (not shown) or the like. The discharge chute 5 is provided with a flapper 51 and a flapper pressure screw 52 for pressurizing the object (dehydrated cake) discharged from the discharge port 10b.

(円板部材の構成)
図4に示すように、円板部材6は、小径円板ろ片23および大径円板ろ片24と同様に金属材料により形成されている。円板部材6は、Y方向を厚み方向とする板状の円環形状を有している。円板部材6には、回転軸21が挿通されるように構成されている。円板部材6には、キー溝6aが複数(4個)設けられている。円板部材6は、キー溝6a(4個のうちのいずれか1個のキー溝)に嵌め込まれるキー(係合部材)により回転軸21(積層状回転ろ体20)と同期して、回転軸21とともに回転可能なように構成されている。
(Structure of disk member)
As shown in FIG. 4, the disk member 6 is made of a metal material like the small-diameter disk filter pieces 23 and the large-diameter disk filter pieces 24 . The disc member 6 has a plate-like annular shape with the Y direction as the thickness direction. The disk member 6 is configured so that the rotation shaft 21 is inserted therethrough. The disc member 6 is provided with a plurality (four) of key grooves 6a. The disk member 6 is rotated in synchronization with the rotary shaft 21 (the laminated rotary filter body 20) by a key (engagement member) fitted in the key groove 6a (one of the four key grooves). It is configured to be rotatable together with the shaft 21 .

図3に示すように、円板部材6は、ろ片(中径円板ろ片22、小径円板ろ片23、大径円板ろ片24)の最大直径よりも大きな直径を有している。すなわち、円板部材6は、大径円板ろ片24の直径d3よりも大きな直径dを有している(d3<d)。一例ではあるが、中径円板ろ片22の直径が106mm、大径円板ろ片24の直径が129mm、隣接する回転体2の回転軸21間隔(回転軸21の外表面と、隣接する他の回転軸21の外表面との間の間隔)が106mmである場合に、円板部材6の直径は最大で156mmとなる。円板部材6は、小径円板ろ片23および大径円板ろ片24と略同じ厚みを有している。 As shown in FIG. 3, the disk member 6 has a diameter larger than the maximum diameter of the filter pieces (medium-diameter disk filter piece 22, small-diameter disk filter piece 23, large-diameter disk filter piece 24). there is That is, the disc member 6 has a diameter d larger than the diameter d3 of the large-diameter disc filter piece 24 (d3<d). As an example, the diameter of the medium-diameter disc filter piece 22 is 106 mm, the diameter of the large-diameter disc filter piece 24 is 129 mm, and the interval between the rotating shafts 21 of the adjacent rotating bodies 2 (the outer surface of the rotating shaft 21 and the adjacent When the distance from the outer surface of the other rotating shaft 21) is 106 mm, the maximum diameter of the disk member 6 is 156 mm. The disc member 6 has substantially the same thickness as the small-diameter disc filter piece 23 and the large-diameter disc filter piece 24 .

円板部材6は、大径円板ろ片24よりも大きい直径を有しているため、被処理物に対して大径円板ろ片よりも大きく食い込ませて、被処理物に対する推進力を生む面積を広く確保することができる。その結果、円板部材6は大径円板ろ片24よりも大きい力で被処理物を搬送することができる。 Since the disk member 6 has a diameter larger than that of the large-diameter disk filter piece 24, it is made to bite into the object to be processed more than the large-diameter disk filter piece 24, thereby applying a driving force to the object to be processed. It is possible to secure a large area to produce. As a result, the disc member 6 can convey the object to be processed with a force greater than that of the large-diameter disc filter piece 24 .

円板部材6の半径(d/2)は、隣接する2個の回転体2の回転中心軸線α間の距離D(図2参照)から回転軸21の半径R(図2参照)を差し引いた値よりも小さい(d/2<D-R)。詳細には、円板部材6の半径は、距離Dから半径Rを差し引いた値から、さらに、回転軸21のキー溝に嵌め込まれるキー(係合部材)の大きさを差し引いた値と略同じ(キー(係合部材)の大きさを差し引いた値よりも僅かに小さい値)である。 The radius (d/2) of the disc member 6 is obtained by subtracting the radius R (see FIG. 2) of the rotating shaft 21 from the distance D (see FIG. 2) between the rotation center axes α of two adjacent rotating bodies 2. value (d/2<DR). Specifically, the radius of the disk member 6 is substantially the same as the value obtained by subtracting the radius R from the distance D, and further subtracting the size of the key (engagement member) fitted in the key groove of the rotating shaft 21. (a value slightly smaller than the value obtained by subtracting the size of the key (engagement member)).

円板部材6は、積層状回転ろ体20と側板11との間に設けられている。円板部材6は、回転軸21の軸方向(Y方向)において、積層状回転ろ体20の両側にそれぞれ設けられている。円板部材6は、中径円板ろ片22の凸部22aまたは凸部22bの端面に接触した状態で設けられている。円板部材6は、上下2列の列ごとに互いに重なり合うように隣接する複数の回転体2に対して、1つおきに設けられている。 The disk member 6 is provided between the laminated rotary filter body 20 and the side plate 11 . The disc members 6 are provided on both sides of the laminated rotary filter body 20 in the axial direction (Y direction) of the rotary shaft 21 . The disk member 6 is provided in contact with the end surface of the projection 22 a or the projection 22 b of the medium-diameter disk filter piece 22 . The disc members 6 are provided alternately with respect to a plurality of rotating bodies 2 adjacent to each other so as to overlap with each other in two upper and lower rows.

ただし、円板部材6は、下列の複数の回転体2のうち被処理物の固体成分を送る方向の最上流の回転体2と最下流の回転体2との間に位置する回転体2に設けられている。すなわち、円板部材6は、下列の複数の回転体2のうち最上流および最下流の回転体2には設けられていない。これは、下列の回転体2に設けられる円板部材6と、シール部材3(図2参照)およびスクレイパー4(図2参照)とが干渉するのを回避するためである。 However, the disk member 6 is positioned between the most upstream rotating body 2 and the most downstream rotating body 2 in the direction of feeding the solid component of the object to be processed among the plurality of rotating bodies 2 in the lower row. is provided. That is, the disk member 6 is not provided on the most upstream and most downstream rotating bodies 2 among the plurality of rotating bodies 2 in the lower row. This is to avoid interference between the disk member 6 provided on the rotating body 2 in the lower row, the seal member 3 (see FIG. 2) and the scraper 4 (see FIG. 2).

また、円板部材6は、上列の複数の回転体2のうち最下流の回転体2よりも上流側に位置する回転体2に設けられている。すなわち、円板部材6は、上列の複数の回転体2のうち最下流の回転体2には設けられていない。これは、上列の回転体2に設けられる円板部材6と、スクレイパー4とが干渉するのを回避するためである。 Further, the disk member 6 is provided on the rotating body 2 located upstream of the most downstream rotating body 2 among the plurality of rotating bodies 2 in the upper row. That is, the disk member 6 is not provided on the most downstream rotor 2 among the plurality of rotors 2 in the upper row. This is to avoid interference between the disk member 6 provided on the rotating body 2 in the upper row and the scraper 4 .

具体的には、円板部材6は、上列の複数(6個)の回転体2のうち最下流側から数えて2番目、4番目、6番目の回転体2にそれぞれ設けられている。また、円板部材6は、下列の複数(8個)の回転体2のうち最下流側から数えて2番目、4番目、6番目の回転体2にそれぞれ設けられている。なお、多重円板型脱水機100に設けられている複数の円板部材6は、互いに同一の直径を有している。 Specifically, the disk member 6 is provided on each of the second, fourth, and sixth rotating bodies 2 counted from the most downstream side among the plurality (six) of rotating bodies 2 in the upper row. The disk member 6 is provided on each of the second, fourth, and sixth rotors 2 counted from the most downstream side among the plurality (eight) rotors 2 in the lower row. The plurality of disk members 6 provided in the multi-disk dehydrator 100 have the same diameter.

側板11と円板部材6との間には、側板11と円板部材6との両方に接触し、円板部材6(直径d)およびろ片(小径円板ろ片23の直径d1、中径円板ろ片22の直径d2、大径円板ろ片24の直径d3)よりも小さな直径d0を有する円環形状のスペーサ部材7が設けられている(d0<d1<d2<d3)。 Between the side plate 11 and the disc member 6, both the side plate 11 and the disc member 6 are in contact, and the disc member 6 (diameter d) and the filter piece (diameter d1 of the small-diameter disc filter piece 23, middle An annular spacer member 7 having a diameter d0 smaller than the diameter d2 of the diameter disk filter piece 22 and the diameter d3 of the large diameter disk filter piece 24 is provided (d0<d1<d2<d3).

スペーサ部材7は、円板部材6と略同じ厚み、または、円板部材6よりも小さな厚みを有している。すなわち、スペーサ部材7を設けることで、円板部材6と側板11との間に被処理物が侵入しやすくなることがない程度の所定の厚みを、スペーサ部材7は有している。 The spacer member 7 has substantially the same thickness as the disk member 6 or a thickness smaller than that of the disk member 6 . That is, the spacer member 7 has a predetermined thickness that does not make it easier for the object to be processed to enter between the disk member 6 and the side plate 11 by providing the spacer member 7 .

(本実施形態の効果)
本実施形態では、以下のような効果を得ることができる。
(Effect of this embodiment)
The following effects can be obtained in this embodiment.

本実施形態では、上記のように、円板部材6が回転体2とともに回転することにより、側板11付近の被処理物を排出口10bに向けて送ることができる。また、円板部材6はろ片(中径円板ろ片22、小径円板ろ片23、大径円板ろ片24)の最大直径よりも大きな直径を有するので、円板部材6はろ片よりも被処理物に対して大きく食い込いこませて被処理物に対する推進力を生む面積を広く確保することができ、円板部材6が配置される側板11近傍において、ろ片よりも大きい推進力を被処理物に与えることができる。以上の結果、被処理物に対して摩擦力(ブレーキ)が大きく生じる回転軸21の軸方向の外側において、被処理物に大きい推進力を与えることにより、回転軸21の軸方向における被処理物の送り量を均等化して排出口10bから排出することができるので、排出口10bから被処理物(脱水ケーキ)を効率よく排出することができる。 In this embodiment, as described above, the disk member 6 rotates together with the rotating body 2, so that the workpiece near the side plate 11 can be sent toward the discharge port 10b. In addition, since the disk member 6 has a diameter larger than the maximum diameter of the filter pieces (the medium-diameter disk filter pieces 22, the small-diameter disk filter pieces 23, and the large-diameter disk filter pieces 24), the disk member 6 is larger than the filter pieces. It is possible to ensure a wide area for generating a driving force to the object by making the disk member 6 bite into the object to be processed. can be applied to the workpiece. As a result of the above, by applying a large propulsive force to the object to be processed on the outside in the axial direction of the rotating shaft 21 where a large frictional force (brake) is applied to the object to be processed, the object to be processed in the axial direction of the rotating shaft 21 is can be discharged from the discharge port 10b by equalizing the feeding amount, the object to be treated (dehydrated cake) can be efficiently discharged from the discharge port 10b.

また、本実施形態では、上記のように、円板部材6は、回転軸21の軸方向において、積層状回転ろ体20の両側にそれぞれ設けられている。これにより、積層状回転ろ体20の両側で、側板11付近の被処理物を効果的に排出口10bに向けて送ることができる。その結果、排出口10bから被処理物(脱水ケーキ)をより効率よく排出することができる。 Further, in the present embodiment, as described above, the disk members 6 are provided on both sides of the laminated rotary filter body 20 in the axial direction of the rotary shaft 21 . Thereby, on both sides of the laminated rotary filter body 20, the material to be treated near the side plate 11 can be effectively sent toward the discharge port 10b. As a result, the object to be processed (dehydrated cake) can be more efficiently discharged from the discharge port 10b.

また、本実施形態では、上記のように、ろ片は、複数の小径円板ろ片23と、小径円板ろ片23よりも大きな直径を有する複数の中径円板ろ片22と、中径円板ろ片22よりも大きな直径を有する複数の大径円板ろ片24とを有し、円板部材6は、大径円板ろ片24よりも大きな直径を有している。これにより、円板部材6は大径円板ろ片24の直径よりも大きな直径を有するので、円板部材6は大径円板ろ片24よりも被処理物に対して大きく食い込いこませて被処理物に対する推進力を生む面積を広く確保することができ、円板部材6が配置される側板11近傍において、大径円板ろ片24よりも大きい力で被処理物を搬送することができる。その結果、被処理物に対して摩擦力(ブレーキ)が大きく生じる回転軸21の軸方向の外側において、被処理物に大きい推進力を与えることができるので、排出口10bから被処理物(脱水ケーキ)をより効率よく排出することができる。 In addition, in the present embodiment, as described above, the filter pieces include the plurality of small-diameter disk filter pieces 23, the plurality of medium-diameter disk filter pieces 22 having a larger diameter than the small-diameter disk filter pieces 23, and the medium-diameter disk filter pieces 22. It has a plurality of large-diameter disc filter pieces 24 having a larger diameter than the diameter disc filter pieces 22 , and the disc member 6 has a larger diameter than the large-diameter disc filter pieces 24 . As a result, the disc member 6 has a diameter larger than that of the large-diameter disc filter piece 24, so that the disc member 6 is prevented from digging into the object to be processed more than the large-diameter disc filter piece 24. In the vicinity of the side plate 11 where the disk member 6 is arranged, the object to be processed can be conveyed with a force greater than that of the large-diameter disk filter piece 24. can be done. As a result, a large propulsive force can be applied to the object to be treated on the outer side in the axial direction of the rotating shaft 21 where a large frictional force (brake) is applied to the object to be treated. cake) can be discharged more efficiently.

また、本実施形態では、上記のように、回転体2は、被処理物の供給口10a側から排出口10b側に向けて上下2列で複数設けられており、軸方向から見て、列ごとに互いに重なり合うように隣接して配置され、円板部材6は、上下2列の列ごとに隣接する複数の回転体2に対して、少なくとも、1つおきに設けられている。これにより、複数の円板部材6を、回転軸21の軸方向に直交する方向において互いに干渉することなく配置することができる。 In the present embodiment, as described above, the rotating bodies 2 are arranged in two upper and lower rows from the supply port 10a side of the material to be processed toward the discharge port 10b side. The disk members 6 are arranged adjacent to each other so as to overlap each other, and the disk members 6 are provided at least every other one of the plurality of rotating bodies 2 adjacent to each other in two upper and lower rows. Thereby, the plurality of disk members 6 can be arranged without interfering with each other in the direction orthogonal to the axial direction of the rotating shaft 21 .

また、本実施形態では、上記のように、側板11と円板部材6との間には、側板11と円板部材6との両方に接触し、円板部材6および小径円板ろ片23よりも小さな直径を有するスペーサ部材7が設けられている。これにより、スペーサ部材7を設けることなく側板11(側板11の内表面)と円板部材6とを直接接触させた場合の回転体2に掛かる抵抗(側板11と円板部材6との間の摩擦により回転体2に掛かる力)と比較して、回転体2に掛かる抵抗(円板部材6とスペーサ部材7との間、または、側板11とスペーサ部材7との間の摩擦により回転体2に掛かる力)を低減することができる。 In addition, in the present embodiment, as described above, between the side plate 11 and the disc member 6, both the side plate 11 and the disc member 6 are in contact, and the disc member 6 and the small-diameter disc filter piece 23 are in contact with each other. A spacer member 7 is provided which has a smaller diameter than the . As a result, when the side plate 11 (the inner surface of the side plate 11) and the disk member 6 are brought into direct contact without providing the spacer member 7, the resistance applied to the rotor 2 (the resistance between the side plate 11 and the disk member 6 is force applied to the rotor 2 due to friction), the resistance applied to the rotor 2 (friction between the disk member 6 and the spacer member 7 or between the side plate 11 and the spacer member 7 causes the rotor 2 force) can be reduced.

また、本実施形態では、上記のように、円板部材6は、下列の複数の回転体2のうち被処理物の固体成分を送る方向の最上流の回転体2と最下流の回転体2との間に位置する回転体2に設けられているとともに、上列の複数の回転体2のうち最下流の回転体2よりも上流側に位置する回転体2に設けられている。ここで、一般的な多重円板型脱水機では、上下列の最下流の回転体にはそれぞれスクレイパー(回転体から固形物を掻き取る部材)が設けられ、下列の最上流の回転体にはシール部材(回転体と処理槽の内表面との間の隙間を埋める部材)が設けられている。これにより、円板部材6と、スクレイパー4およびシール部材3とが互いに干渉するのを回避することができる。 Further, in the present embodiment, as described above, the disk member 6 includes the most upstream rotating body 2 and the most downstream rotating body 2 in the direction of feeding the solid component of the object to be processed among the plurality of rotating bodies 2 in the lower row. , and is provided on the rotor 2 located upstream of the most downstream rotor 2 among the plurality of rotors 2 in the upper row. Here, in a general multi-disk type dehydrator, a scraper (a member for scraping solid matter from the rotating body) is provided on each of the upper and lower rows of rotating bodies at the most downstream side, and a A sealing member (a member that fills the gap between the rotating body and the inner surface of the processing tank) is provided. This can prevent the disk member 6 from interfering with the scraper 4 and the seal member 3 .

また、本実施形態では、上記のように、円板部材6の半径は、隣接する回転体2の回転中心軸線間の距離から回転軸21の半径を差し引いた値よりも小さい。これにより、円板部材6が、隣接する回転体2の回転軸21に干渉するのを防止することができる。 Further, in the present embodiment, as described above, the radius of the disk member 6 is smaller than the value obtained by subtracting the radius of the rotating shaft 21 from the distance between the rotation center axes of the adjacent rotating bodies 2 . Thereby, it is possible to prevent the disk member 6 from interfering with the rotating shaft 21 of the adjacent rotating body 2 .

[変形例]
なお、今回開示された実施形態は、すべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した実施形態の説明ではなく特許請求の範囲によって示され、さらに特許請求の範囲と均等の意味および範囲内でのすべての変更(変形例)が含まれる。
[Modification]
It should be noted that the embodiments disclosed this time should be considered as examples and not restrictive in all respects. The scope of the present invention is indicated by the scope of the claims rather than the description of the above-described embodiments, and includes all modifications (modifications) within the meaning and scope equivalent to the scope of the claims.

たとえば、上記実施形態では、複数の回転体のうちの一部に円板部材を設けた例を示したが本発明はこれに限らない。本発明では、すべての回転体に円板部材を設けてもよい。また、上記実施形態で示した回転体とは異なる回転体に円板部材を設けてもよい。ただし、上列(下列)の最下流の回転体に円板部材を設ける場合には、円板部材とスクレイパーとの干渉回避のために、スクレイパーの形状変更などが必要となる。また、下列の最上流の回転体に円板部材を設ける場合には、円板部材とシール部材との干渉回避のために、シール部材の形状変更などが必要となる。 For example, in the above-described embodiment, an example in which a disc member is provided in some of the plurality of rotating bodies was shown, but the present invention is not limited to this. In the present invention, disk members may be provided for all rotating bodies. Further, the disk member may be provided on a rotating body different from the rotating body shown in the above embodiment. However, when the disk member is provided on the most downstream rotor in the upper row (lower row), it is necessary to change the shape of the scraper in order to avoid interference between the disk member and the scraper. Further, in the case where a disc member is provided on the most upstream rotor in the lower row, it is necessary to change the shape of the seal member in order to avoid interference between the disc member and the seal member.

また、上記実施形態では、回転軸の軸方向において積層状回転ろ体の両側に円板部材を設けた例を示したが本発明はこれに限らない。本発明では、回転軸の軸方向において積層状回転ろ体の内側にも円板部材を設けてもよい。また、回転軸の軸方向において積層状回転ろ体の一方側のみに円板部材を設けてもよい。 Further, in the above-described embodiment, an example in which disk members are provided on both sides of the laminated rotary filter body in the axial direction of the rotating shaft is shown, but the present invention is not limited to this. In the present invention, a disk member may also be provided inside the laminated rotary filter body in the axial direction of the rotary shaft. Further, the disk member may be provided only on one side of the laminated rotary filter body in the axial direction of the rotary shaft.

また、上記実施形態では、上列の回転体の数を6個、下列の回転体の数を8個とした例を示したが本発明はこれに限らない。本発明では、上列の回転体の数を6個以外の複数個としてもよい。また、下列の回転体の数を8個以外の複数個としてもよい。 Further, in the above-described embodiment, an example was shown in which the number of rotating bodies in the upper row was six and the number of rotating bodies in the lower row was eight, but the present invention is not limited to this. In the present invention, the number of rotating bodies in the upper row may be a plurality other than six. Also, the number of rotating bodies in the lower row may be a plurality other than eight.

また、上記実施形態では、多重円板型脱水機に設けられている複数の円板部材を、互いに同一の直径を有するように形成した例を示したが本発明はこれに限らない。本発明では、多重円板型脱水機に設けられている複数の円板部材を、互いに異なる直径を有するように形成してもよい。 Further, in the above-described embodiment, an example is shown in which the plurality of disc members provided in the multiple disc dehydrator are formed to have the same diameter, but the present invention is not limited to this. In the present invention, the plurality of disk members provided in the multiple disk dehydrator may be formed to have different diameters.

また、上記実施形態では、円板部材を金属材料により形成した例を示したが本発明はこれに限らない。本発明では、円板部材を樹脂材料などの金属材料以外の材料により形成してもよい。 Moreover, in the above-described embodiment, an example in which the disk member is made of a metal material is shown, but the present invention is not limited to this. In the present invention, the disk member may be made of a material other than metal, such as a resin material.

また、上記実施形態では、側板と円板部材との間には、側板と円板部材との両方に接触するスペーサ部材を設けた例を示したが本発明はこれに限らない。本発明では、スペーサ部材を設けることなく、側板と円板部材とを直接接触させた状態で配置してもよい。 Further, in the above-described embodiment, an example in which a spacer member is provided between the side plate and the disc member so as to contact both the side plate and the disc member has been described, but the present invention is not limited to this. In the present invention, the side plate and the disk member may be arranged in direct contact without providing the spacer member.

また、上記実施形態では、円板部材を、小径円板ろ片および大径円板ろ片と略同じ厚みに形成した例を示したが本発明はこれに限らない。本発明では、円板部材を、小径円板ろ片および大径円板ろ片よりも小さい厚みまたは大きい厚みに形成してもよい。 Further, in the above embodiment, an example in which the disk member is formed to have substantially the same thickness as the small diameter disk filter piece and the large diameter disk filter piece has been shown, but the present invention is not limited to this. In the present invention, the disk member may be formed to have a thickness smaller or larger than that of the small-diameter disk filter piece and the large-diameter disk filter piece.

1 処理槽
2 回転体
6 円板部材
7 スペーサ部材
10a 供給口
10b 排出口
11 側板
20 積層状回転ろ体
21 回転軸
22 中径円板ろ片(ろ片)
23 小径円板ろ片(ろ片)
24 大径円板ろ片(ろ片)
100 多重円板型脱水機
G ろ過溝
REFERENCE SIGNS LIST 1 treatment tank 2 rotating body 6 disc member 7 spacer member 10a supply port 10b discharge port 11 side plate 20 laminated rotary filter body 21 rotating shaft 22 medium-diameter disc filter pieces (filter pieces)
23 Small-diameter disk filter piece (filter piece)
24 Large-diameter disk filter piece (filter piece)
100 Multiple disk type dehydrator G Filtration groove

Claims (6)

回転軸と、前記回転軸の軸方向に沿って積層された複数のろ片を有し、前記ろ片間にろ過溝が形成された積層状回転ろ体とを含み、上下2列で隣接して設けられる複数の回転体と、
前記回転軸の軸方向において、前記積層状回転ろ体を挟むように設けられる一対の第1側板を含む処理槽と、
前記ろ片の最大直径よりも大きな直径を有し、前記回転体とともに回転可能なように前記第1側板と前記積層状回転ろ体との間に設けられる円板部材と、
上下列の前記複数の回転体のうち最下流の前記積層状回転ろ体に詰まった固形物を掻き取るように構成されているスクレイパーと、
前記処理槽の供給口が設けられた第2側板の内表面と下列の最上流の前記回転体との間に設けられているシール部材と、を備え、
前記円板部材は、下列の前記複数の回転体のうち被処理物の固体成分を送る方向の最上流の回転体および最下流の回転体には設けられておらず、最上流の前記回転体と最下流の前記回転体との間に位置する前記回転体に設けられているとともに、上列の前記複数の回転体のうち最下流の前記回転体には設けられておらず、最下流の前記回転体よりも上流側に位置する前記回転体に設けられる、多重円板型脱水機。
A rotating shaft and a layered rotating filter body having a plurality of filter pieces stacked along the axial direction of the rotating shaft and having filtration grooves formed between the filter pieces, and are arranged vertically in two adjacent rows. a plurality of rotating bodies provided in the
a processing tank including a pair of first side plates provided so as to sandwich the laminated rotary filter body in the axial direction of the rotating shaft;
a disc member having a diameter larger than the maximum diameter of the filter pieces and provided between the first side plate and the laminated rotary filter body so as to be rotatable together with the rotary body;
a scraper configured to scrape off solid matter clogged in the most downstream layered rotary filter body among the plurality of rotary bodies in the upper and lower rows;
a seal member provided between the inner surface of the second side plate provided with the supply port of the processing tank and the most upstream rotor in the lower row ,
The disk member is not provided on the most upstream rotating body or the most downstream rotating body in the direction of feeding the solid component of the object among the plurality of lower row rotating bodies. and the most downstream rotating body, and not provided on the most downstream rotating body among the plurality of rotating bodies in the upper row , and A multi-disc type dehydrator provided on the rotating body located upstream of the rotating body.
前記円板部材は、前記回転軸の軸方向において、前記積層状回転ろ体の両側にそれぞれ設けられている、請求項1に記載の多重円板型脱水機。 2. The multiple disc dehydrator according to claim 1, wherein said disc members are provided on both sides of said layered rotary filter body in the axial direction of said rotating shaft. 前記ろ片は、複数の小径円板ろ片と、前記小径円板ろ片よりも大きな直径を有する複数の中径円板ろ片と、前記中径円板ろ片よりも大きな直径を有する複数の大径円板ろ片とを有し、
前記円板部材は、前記大径円板ろ片よりも大きな直径を有している、請求項1または2に記載の多重円板型脱水機。
The filter pieces include a plurality of small-diameter disk filter pieces, a plurality of medium-diameter disk filter pieces having a larger diameter than the small-diameter disk filter pieces, and a plurality of medium-diameter disk filter pieces having a larger diameter than the medium-diameter disk filter pieces. and a large-diameter disc filter piece of
3. The multi-disc dehydrator according to claim 1, wherein said disc member has a diameter larger than that of said large-diameter disc filter piece.
前記回転体は、被処理物の供給口側から排出口側に向けて上下2列で複数設けられており、軸方向から見て、列ごとに互いに重なり合うように隣接して配置され、
前記円板部材は、上下2列の列ごとに隣接する前記複数の回転体に対して、少なくとも、1つおきに設けられている、請求項1~3のいずれか1項に記載の多重円板型脱水機。
A plurality of the rotating bodies are provided in two upper and lower rows from the supply port side of the material to be processed toward the discharge port side, and are arranged adjacent to each other so as to overlap each other when viewed from the axial direction,
The multiple circles according to any one of claims 1 to 3, wherein the disk members are provided at least alternately with respect to the plurality of rotating bodies adjacent to each other in two upper and lower rows. Plate type dehydrator.
前記第1側板と前記円板部材との間には、前記第1側板と前記円板部材との両方に接触し、前記円板部材および前記ろ片よりも小さな直径を有するスペーサ部材が設けられている、請求項1~4のいずれか1項に記載の多重円板型脱水機。 Between the first side plate and the disk member, a spacer member is provided that contacts both the first side plate and the disk member and has a smaller diameter than the disk member and the filter piece. The multiple disk type dehydrator according to any one of claims 1 to 4. 前記円板部材の半径は、隣接する前記回転体の回転中心軸線間の距離から前記回転軸の半径を差し引いた値よりも小さい、請求項1~のいずれか1項に記載の多重円板型脱水機。 The multiple discs according to any one of claims 1 to 5 , wherein the radius of the disc member is smaller than the value obtained by subtracting the radius of the rotating shaft from the distance between the rotation center axes of the adjacent rotating bodies. type dehydrator.
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Publication number Priority date Publication date Assignee Title
JP2002126799A (en) 2000-10-20 2002-05-08 Teera Bunri:Kk Movable dehydration vehicle loaded with filtration tank
JP2008012442A (en) 2006-07-06 2008-01-24 Ihi Corp Multiple disk dewatering apparatus
JP2016187760A (en) 2015-03-30 2016-11-04 株式会社クボタ Processing equipment and method for processing organic waste water

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JPS5949043B2 (en) * 1981-02-12 1984-11-30 五郎 佐々木 Continuous “filtration” device
JPS61130308U (en) * 1985-01-30 1986-08-15
KR20070066280A (en) * 2005-12-21 2007-06-27 현대모비스 주식회사 Automobile's bumper

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002126799A (en) 2000-10-20 2002-05-08 Teera Bunri:Kk Movable dehydration vehicle loaded with filtration tank
JP2008012442A (en) 2006-07-06 2008-01-24 Ihi Corp Multiple disk dewatering apparatus
JP2016187760A (en) 2015-03-30 2016-11-04 株式会社クボタ Processing equipment and method for processing organic waste water

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