JP4669217B2 - Solid-liquid separator - Google Patents

Solid-liquid separator Download PDF

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JP4669217B2
JP4669217B2 JP2003415573A JP2003415573A JP4669217B2 JP 4669217 B2 JP4669217 B2 JP 4669217B2 JP 2003415573 A JP2003415573 A JP 2003415573A JP 2003415573 A JP2003415573 A JP 2003415573A JP 4669217 B2 JP4669217 B2 JP 4669217B2
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cylindrical body
processing object
solid
screw
outlet opening
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JP2005169322A (en
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正昌 佐々木
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Amukon KK
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Description

本発明は、筒状体の内部に配置されたスクリューを回転駆動することにより、前記筒状体の軸線方向一端側の入口開口から筒状体の内部に流入した処理対象物を筒状体の軸線方向他端側の出口開口へ向けて移動させると共に、該出口開口側に設けた規制部材によって筒状体の内部から排出される処理対象物の量を規制することにより、筒状体内の処理対象物に加えられる圧力を高め、該筒状体内を移動する処理対象物から分離された濾液を、筒状体に形成された濾液排出間隙を通して筒状体外に排出させ、液体分の減少した処理対象物を筒状体の出口開口から筒状体外へ排出させる固液分離装置に関するものである。   According to the present invention, by rotating and driving a screw disposed inside the cylindrical body, the processing object flowing into the cylindrical body from the inlet opening on one end side in the axial direction of the cylindrical body is transferred to the cylindrical body. By moving toward the outlet opening on the other end side in the axial direction and regulating the amount of the processing object discharged from the inside of the cylindrical body by the regulating member provided on the outlet opening side, the processing inside the cylindrical body is performed. A process in which the pressure applied to the object is increased and the filtrate separated from the processing object moving through the cylindrical body is discharged out of the cylindrical body through the filtrate discharge gap formed in the cylindrical body, thereby reducing the liquid content. The present invention relates to a solid-liquid separation device that discharges an object from an outlet opening of a cylindrical body to the outside of the cylindrical body.

多量の液体を含む処理対象物、例えば食品加工排水や下水処理物などの有機系汚泥、或いは切削屑を含む切削油や塗料を含む塗料廃液などの無機系汚泥から液体を分離するために、上記形式の固液分離装置を用いることは従来より周知である（例えば、特許文献１及び２参照）。   In order to separate the liquid from the treatment object containing a large amount of liquid, for example, organic sludge such as food processing wastewater or treated sewage, or inorganic sludge such as cutting oil containing cutting waste or paint waste liquid containing paint. The use of a solid-liquid separator of the type has been well known (see, for example, Patent Documents 1 and 2).

ところが、処理対象物の性質によっては、その処理対象物が出口開口近傍の筒状体内で固まり、これがここで詰まってしまい、液体分の減少した処理対象物が筒状体の出口開口から排出されなくなってしまうおそれがある。特に、無機系の処理対象物は、筒状体内で液体が分離されやすいため、液体分の減少した処理対象物が、出口開口近傍の筒状体内で固化し、これが詰まってしまう可能性が高い。このため、従来は、固化しやすい処理対象物を冒頭に記載した形式の固液分離装置によって固液分離することはできなかった。   However, depending on the nature of the processing object, the processing object hardens in the cylindrical body in the vicinity of the outlet opening, which is clogged here, and the processing object with a reduced liquid content is discharged from the outlet opening of the cylindrical body. There is a risk of disappearing. In particular, since the inorganic processing target is liable to separate the liquid in the cylindrical body, the processing target having a reduced liquid content is likely to be solidified in the cylindrical body near the outlet opening and clogged. . For this reason, conventionally, it has been impossible to solid-liquid separate an object that is easily solidified by a solid-liquid separation apparatus of the type described at the beginning.

特開平９−２２０６００号公報JP-A-9-220600 特開昭６０−１９０１２号公報JP-A-60-19012

本発明の目的は、上述した従来の欠点を軽減できる冒頭に記載した形式の固液分離装置を提供することにある。   An object of the present invention is to provide a solid-liquid separator of the type described at the beginning, which can alleviate the above-mentioned conventional drawbacks.

本発明は、上記目的を達成するため、冒頭に記載した形式の固液分離装置において、前記出口開口近傍の筒状体内に存する処理対象物に外力を加えて、該処理対象物を崩す崩し手段を設け、前記規制部材は、前記スクリューと共に回転するように、該スクリューに対して固定されていて、前記崩し手段は、前記規制部材に固定され、かつ前記筒状体内に突出する突起より成ることを特徴とする固液分離装置を提案する（請求項１）。 In order to achieve the above object, the present invention provides a solid-liquid separation device of the type described at the beginning, wherein an external force is applied to the processing object existing in the cylindrical body in the vicinity of the outlet opening so as to break the processing object. The restricting member is fixed to the screw so as to rotate together with the screw, and the breaking means is composed of a protrusion that is fixed to the restricting member and protrudes into the cylindrical body. A solid-liquid separator characterized by the above is proposed (claim 1).

また、上記請求項１に記載の固液分離装置において、前記突起は棒状に形成されていると有利である（請求項２）。 In the solid-liquid separation device according to claim 1, it is advantageous that the protrusion is formed in a rod shape (claim 2).

さらに、本発明は、上記目的を達成するため、冒頭に記載した形式の固液分離装置において、前記出口開口近傍の筒状体内に存する処理対象物に外力を加えて、該処理対象物を崩す崩し手段を設け、該崩し手段は、前記スクリューに設けられた突起より成り、該突起は前記筒状体の内部に位置していることを特徴とする固液分離装置を提案する（請求項３）。 Furthermore, in order to achieve the above-mentioned object , the present invention, in the solid-liquid separation apparatus of the type described at the beginning , applies an external force to the processing object existing in the cylindrical body in the vicinity of the outlet opening to collapse the processing object. the breaking means is provided,該崩and means consists of protrusions provided on said screw,該Tokki is we propose to solid-liquid separation apparatus, characterized in that located inside of the tubular body (claim 3).

また、上記請求項３に記載の固液分離装置において、前記突起は、前記スクリューの軸部に固定され、かつ該軸部の半径方向に突出していると有利である（請求項４）。 Further, in the solid-liquid separating apparatus according to the claim 3, wherein the projection is fixed to the shaft portion of the screw, and it is advantageous that protrude in the radial direction of the shaft portion (claim 4).

さらに、上記請求項１乃至４のいずれかに記載の固液分離装置において、前記筒状体を向いた側の規制部材部分の外径が、処理対象物の移動方向上流側から下流側に向けて漸次大きくなっていると有利である（請求項５）。 Furthermore , in the solid-liquid separator according to any one of claims 1 to 4 , the outer diameter of the regulating member portion on the side facing the cylindrical body is from the upstream side to the downstream side in the moving direction of the processing object. It is advantageous that the size is gradually increased (claim 5 ).

また、上記請求項１乃至５のいずれかに記載の固液分離装置において、前記筒状体は、互いに間隔をあけて軸線方向に配列された複数の固定リングと、各固定リングの間に配置された可動リングとを有し、該可動リングの内径が前記スクリューの外径よりも小さく設定されていると有利である（請求項６）。 Further, in the solid-liquid separation device according to any one of claims 1 to 5, wherein the tubular body includes a plurality of stationary rings arranged in axially spaced apart from each other, arranged between the fixing ring It is advantageous if the inner diameter of the movable ring is set smaller than the outer diameter of the screw (Claim 6 ).

本発明によれば、出口開口近傍の筒状体内に存する処理対象物に崩し手段によって外力を加え、その処理対象物を崩すことができるので、処理対象物が筒状体内で固まって、これが詰まってしまう不具合を防止することができる。   According to the present invention, an external force can be applied to the processing object existing in the cylindrical body in the vicinity of the outlet opening by the breaking means, and the processing target object can be destroyed. Can be prevented.

以下、本発明の実施形態例を図面に従って詳細に説明する。   Embodiments of the present invention will be described below in detail with reference to the drawings.

図１は、多量の液体を含んだ処理対象物の一例である汚泥を脱水し、これを含水率の低下した汚泥と水分とに分離する固液分離装置の一例を示す部分断面図である。ここに示した固液分離装置は、入口部材１、出口部材２、及びその両者の間に配置された固液分離部５，５を有している。入口部材１は一端側に端壁４を有し、他端側が開放された筒状に形成され、その上部に汚泥用の流入口１２が形成されている。入口部材１の下部フランジ１３はステー１４に固定されている。また、出口部材２は、その水平断面がほぼロの字形に形成され、上部と下部が開口し、その下部の開口が、脱水された汚泥が排出される排出口１５を構成している。出口部材２の一方の側壁１６は下方に延び、その下端部がステー１７に固定されている。   FIG. 1 is a partial cross-sectional view showing an example of a solid-liquid separation device that dehydrates sludge, which is an example of a processing object containing a large amount of liquid, and separates the sludge into sludge having a reduced moisture content and moisture. The solid-liquid separator shown here has an inlet member 1, an outlet member 2, and solid-liquid separators 5 and 5 arranged between the two. The inlet member 1 is formed in a cylindrical shape having an end wall 4 on one end side and an open end on the other end side, and an inlet 12 for sludge is formed on the top thereof. The lower flange 13 of the inlet member 1 is fixed to the stay 14. Further, the outlet member 2 has a horizontal cross section formed in a substantially square shape, the upper and lower portions open, and the lower opening constitutes a discharge port 15 through which dewatered sludge is discharged. One side wall 16 of the outlet member 2 extends downward, and a lower end portion thereof is fixed to the stay 17.

本例の固液分離装置は２つの固液分離部５，５を有し、その間に筒状の中間部材３が配置され、その下方に延びるフランジ部１９がステー２０に固定されている。各固液分離部５，５には、図２に示す如き固定リング６が複数個設けられており、これらの固定リング６は、図１、図３及び図４に示すように同心状に配列され、各固定リング６の間にはスペーサ９が挟み込まれ、各固定リング６の耳６ａに形成された孔８とスペーサ９にはボルト１０が挿通されている。この例では４本のボルト１０が用いられ、これらが同一円周上に配列されているが、図１においては、図を判りやすくするため、一部のボルトとスペーサの図示を省略してある。   The solid-liquid separation device of this example has two solid-liquid separation portions 5, 5, a cylindrical intermediate member 3 is disposed between them, and a flange portion 19 extending downward is fixed to a stay 20. Each of the solid-liquid separation parts 5 and 5 is provided with a plurality of fixing rings 6 as shown in FIG. 2, and these fixing rings 6 are arranged concentrically as shown in FIGS. The spacers 9 are sandwiched between the fixing rings 6, and bolts 10 are inserted into the holes 8 and the spacers 9 formed in the ears 6 a of the fixing rings 6. In this example, four bolts 10 are used, and these are arranged on the same circumference. However, in FIG. 1, illustration of some bolts and spacers is omitted for easy understanding of the drawing. .

各ボルト１０は、入口部材１と、中間部材３と、出口部材２の一方の側壁１６にそれぞれ形成された孔を貫通し、その各ボルト１０にナット３２が螺着されて締め付けられている。このように、各固定リング６は、スペーサ９により互いに所定の間隙をあけて、その軸線方向に配列され、かつボルト１０とナット３２とによって互いに一体的に固定され、入口部材１、中間部材３及び出口部材２に対して不動に固定されている。   Each bolt 10 passes through a hole formed in one side wall 16 of the inlet member 1, the intermediate member 3, and the outlet member 2, and a nut 32 is screwed to each bolt 10 and is tightened. Thus, the fixing rings 6 are arranged in the axial direction with a predetermined gap therebetween by the spacers 9 and are integrally fixed to each other by the bolts 10 and the nuts 32, and the inlet member 1 and the intermediate member 3. And fixed to the outlet member 2.

さらに、各固液分離部５，５には、複数の可動リング３０が設けられ、その各可動リング３０は、各固定リング６の間の間隙にそれぞれ配置されている。図４に示すように、各可動リング３０の厚さＴは、各固定リング間の間隙幅Ｇより小さく設定され、各固定リング６の端面と、これに対向する可動リング３０の端面の間には、例えば０．５乃至１mm程の微小なギャップより成る濾液排出間隙ｇが形成される。かかる濾液排出間隙ｇは、後述するように汚泥から分離された水分、すなわち濾液を通過させるものである。また各可動リング３０の外径Ｄ１は、そのまわりに位置する４個のスペーサ９の内側面により形成される円Ｃ（図２）の径Ｄ２よりも小さく、しかも各固定リング６の内径Ｄ３よりも大きく設定されている。この構成により、各可動リング３０は、各固定リング６の間から離脱することなく、その半径方向に可動となる。 Furthermore, each of the solid-liquid separators 5 and 5 is provided with a plurality of movable rings 30, and each of the movable rings 30 is disposed in a gap between the fixed rings 6. As shown in FIG. 4, the thickness T of each movable ring 30 is set to be smaller than the gap width G between the fixed rings, and between the end surface of each fixed ring 6 and the end surface of the movable ring 30 facing the fixed ring 6. For example, a filtrate discharge gap g composed of a small gap of about 0.5 to 1 mm is formed. The filtrate discharge gap g allows water separated from the sludge, that is, the filtrate to pass through, as will be described later. The outer diameter D 1 of the respective movable ring 30 is smaller than the diameter D 2 of the circle C (FIG. 2) formed by the inner surface of the four spacers 9 positioned around them, yet the inner diameter of the fixed ring 6 It is set to be larger than D 3. With this configuration, each movable ring 30 is movable in the radial direction without detaching from between each fixed ring 6.

上述のようにして、本例の固液分離装置においては、ボルト１０とナット３２により固定された複数の固定リング６と、複数の可動リング３０と、中間部材３と、出口部材２の側壁１６とによって筒状体２１が構成され、その筒状体２１の入口部材側の開口によって筒状体２１の内部への入口開口３４が構成され、出口部材２の側壁１６に形成された貫通孔によって、筒状体２１の出口開口３５が構成されている。中間部材３を省略し、連続した１つの固液分離部を構成することもできる。   As described above, in the solid-liquid separation device of this example, the plurality of fixed rings 6 fixed by the bolts 10 and the nuts 32, the plurality of movable rings 30, the intermediate member 3, and the side wall 16 of the outlet member 2. The cylindrical body 21 is configured by an opening on the inlet member side of the cylindrical body 21, and an inlet opening 34 to the inside of the cylindrical body 21 is configured, and a through hole formed in the side wall 16 of the outlet member 2 The outlet opening 35 of the cylindrical body 21 is configured. The intermediate member 3 may be omitted, and one continuous solid-liquid separation unit may be configured.

また、筒状体２１の内部には、筒状体２１の軸線方向に延びるスクリュー３１が配置されている。ここに例示したスクリュー３１は、図１、図３及び図４に示すように、軸部２４と、これに固定されたらせん状の羽根２２を有し、その軸部２４の一方の端部が、入口部材１の端壁４に回転自在に支持され、またこの軸部２４の他方の端部は、出口部材２の両側壁１６，３３を貫通して、その側壁３３に回転自在に支持され、側壁３３に固定支持されたモータ２７に連結されている。   Further, a screw 31 extending in the axial direction of the cylindrical body 21 is disposed inside the cylindrical body 21. 1, 3 and 4, the screw 31 illustrated here has a shaft portion 24 and a spiral blade 22 fixed to the shaft portion 24, and one end portion of the shaft portion 24 is The other end portion of the shaft portion 24 passes through both side walls 16 and 33 of the outlet member 2 and is rotatably supported by the side wall 33 thereof. The motor 27 is fixedly supported on the side wall 33.

次に固液分離装置の作用の詳細を説明しながら、他の構成について明らかにする。   Next, while explaining details of the operation of the solid-liquid separator, other configurations will be clarified.

図示していない導管を通して、図１に矢印Ａで示すように、多量の水分を含む汚泥（図示せず）が流入口１２から入口部材１内に流入する。この汚泥は、これに予め混入された凝集剤によってフロック化され、水分中に多数のフロックが浮遊した状態となっている。処理前の汚泥の含水率は、例えば９９重量％程度である。   As shown by an arrow A in FIG. 1, sludge (not shown) containing a large amount of moisture flows into the inlet member 1 from the inlet 12 through a conduit (not shown). This sludge is flocked by a flocculant mixed beforehand, and a large number of flocs are suspended in the water. The moisture content of the sludge before treatment is, for example, about 99% by weight.

このとき、スクリュー３１は、モータ２７によってその中心軸線のまわりに回転駆動されており、これにより入口部材１内に流入した汚泥は、筒状体２１の軸線方向一端側の入口開口３４から、その筒状体２１の内部に流入する。筒状体２１内に流入した多量の水分を含む汚泥は、スクリュー３１がその中心軸線のまわりに回転駆動されることにより、筒状体２１の軸線方向他端側の出口開口３５へ向けて移動する。このように、汚泥が筒状体２１の内部を移動するとき、汚泥中から分離された水分、すなわち濾液が各固定リング６と可動リング３０との間の微小ギャップより成る濾液排出間隙ｇを通して筒状体外に排出される。図１に矢印Ｃ１，Ｃ２で示すように、筒状体２１から流下した濾液は、前述の各ステーに固定された第１及び第２受皿３６，３７のそれぞれに受け止められ、その各排出口３８，３９を通して排出される。この水分中には未だ固形分が多少含まれているので、再度、他の汚泥と共に脱水処理される。 At this time, the screw 31 is rotationally driven around its central axis by the motor 27, so that the sludge that flows into the inlet member 1 passes through the inlet opening 34 at one end in the axial direction of the cylindrical body 21. It flows into the inside of the cylindrical body 21. The sludge containing a large amount of moisture that has flowed into the cylindrical body 21 moves toward the outlet opening 35 on the other axial end side of the cylindrical body 21 when the screw 31 is driven to rotate about its central axis. To do. As described above, when the sludge moves in the cylindrical body 21, the water separated from the sludge, that is, the filtrate passes through the filtrate discharge gap g formed by the minute gap between each fixed ring 6 and the movable ring 30. It is discharged out of the body. As indicated by arrows C 1 and C 2 in FIG. 1, the filtrate flowing down from the cylindrical body 21 is received by the first and second trays 36 and 37 fixed to the above-mentioned stays. It is discharged through outlets 38 and 39. Since this moisture still contains some solids, it is dehydrated again with other sludge.

汚泥の水分と固形分を分離する際、各固定リング６と可動リング３０との間の濾液排出間隙ｇに固形分の一部がわずかに入り込むことは避けられず、これを放置すると、その間隙ｇが目詰まりを起こす。ところが、各固定リング６の間に配置された可動リング３０は、その半径方向に可動であるため、各可動リング３０の端面が、これに対向する固定リング６の端面に対して運動し、この掻動作用によって濾液排出間隙ｇに入り込んだ固形分を、該間隙ｇから効率よく排出させることができる。その際、図４に示す如くスクリュー３１の外径Ｄ４は、その回転が阻害されないように、固定リング６の内径Ｄ３よりもわずかに小なる大きさに設定されるが、可動リング３０の内径Ｄ５よりも大きく設定されている。可動リング３０の内径Ｄ５がスクリュー３１の外径Ｄ４よりも小さく設定されているのである。これにより、スクリュー３１の回転によって、各可動リング３０は、スクリュー３１から外力を受け、固定リング６に対して積極的に相対運動し、間隙ｇに対するクリーニング効率を高めることができる。 When separating the moisture and the solid content of the sludge, it is inevitable that a part of the solid content enters the filtrate discharge gap g between each fixed ring 6 and the movable ring 30. g causes clogging. However, since the movable rings 30 disposed between the fixed rings 6 are movable in the radial direction, the end faces of the movable rings 30 move relative to the end faces of the fixed rings 6 facing the movable rings 30. The solid content that has entered the filtrate discharge gap g due to the scratching operation can be efficiently discharged from the gap g. At this time, the outer diameter D 4 of the screw 31 is set to be slightly smaller than the inner diameter D 3 of the fixed ring 6 so that the rotation is not hindered as shown in FIG. It is set larger than the inner diameter D 5. The inner diameter D 5 of the movable ring 30 is set smaller than the outer diameter D 4 of the screw 31. Accordingly, each of the movable rings 30 receives an external force from the screw 31 by the rotation of the screw 31 and positively moves relative to the fixed ring 6, thereby improving the cleaning efficiency for the gap g.

上述のようにして筒状体２１内の汚泥の含水率が下げられ、含水量の減少した汚泥は、筒状体２１の出口開口３５から出口部材２内に排出され、次いでシュータ４２に案内されながら下方に落下して回収される。このようにして脱水処理された後の汚泥の含水率は、例えば８０重量％前後である。   As described above, the moisture content of the sludge in the cylindrical body 21 is lowered, and the sludge having a reduced water content is discharged into the outlet member 2 from the outlet opening 35 of the cylindrical body 21, and then guided to the shooter 42. While falling down, it is recovered. The water content of the sludge after the dehydration treatment is, for example, about 80% by weight.

筒状体２１の出口開口３５の側に設けられた規制部材４０は、図１及び図５に示すように、中心部にスクリュー３１の軸部２４が貫通するボス部５０を備え、そのボス部５０がスクリュー３１の軸部２４にねじ５１により固定されている。従って、スクリュー３１が回転すると、規制部材４０もスクリュー３１と共に、その軸部２４の中心軸線のまわりに回転する。規制部材４０は、筒状体２１の出口開口３５をその外側から塞ぐようにして配置され、筒状体２１を向いた側の規制部材部分４１は、筒状体２１の内部に入り込んでいる。図示した例では、規制部材４０が金属又は樹脂などから構成された１つの部片により形成されているが、複数の部片を固定して規制部材４０を構成することもできる。   As shown in FIGS. 1 and 5, the regulating member 40 provided on the side of the outlet opening 35 of the cylindrical body 21 includes a boss portion 50 through which the shaft portion 24 of the screw 31 passes, and the boss portion. 50 is fixed to the shaft portion 24 of the screw 31 by a screw 51. Therefore, when the screw 31 rotates, the regulating member 40 also rotates around the central axis of the shaft portion 24 together with the screw 31. The regulating member 40 is arranged so as to close the outlet opening 35 of the cylindrical body 21 from the outside, and the regulating member portion 41 on the side facing the cylindrical body 21 enters the inside of the cylindrical body 21. In the illustrated example, the restricting member 40 is formed by one piece made of metal or resin, but the restricting member 40 may be constituted by fixing a plurality of pieces.

規制部材４０は上述のように構成されているので、前述の如く筒状体２１内で脱水処理された汚泥は、規制部材４０に案内されながら、出口開口３５から図１及び図５に矢印Ｂで示すように排出される。その際、規制部材４０は出口開口３５を塞ぐように位置しているので、筒状体２１から外部に排出される汚泥の量が制限されて規制され、これによって筒状体２１内の汚泥に加えられる圧力が、その出口開口３５に近づくに従って高められる。これにより、筒状体２１内の汚泥に対する水分の絞り効果が高められ、脱水済みの汚泥の含水率を、前述のように低いものにすることができる。しかも、本例の画像形成装置においては、筒状体２１の入口開口３４よりも、出口開口３５の方が高くなるように、筒状体２１が傾斜し、さらに、スクリュー３１のらせん状の羽根２２のピッチが筒状体２１の入口開口３４の側から出口開口３５に向けて漸次小さくなっているので、より一層確実に筒状体２１内の汚泥に加えられる圧力を、出口開口３５に近づくに従って高めることができる。なお、図４においては、筒状体２１が水平に位置している状態で、その筒状体２１を図示してある。   Since the restricting member 40 is configured as described above, the sludge dehydrated in the cylindrical body 21 as described above is guided by the restricting member 40, and the arrow B in FIG. 1 and FIG. It is discharged as shown in. At that time, since the regulating member 40 is positioned so as to block the outlet opening 35, the amount of sludge discharged to the outside from the cylindrical body 21 is limited and regulated, and thereby the sludge in the cylindrical body 21 is restricted. The applied pressure is increased as it approaches its outlet opening 35. Thereby, the water | squeeze effect of the water | moisture content with respect to the sludge in the cylindrical body 21 is heightened, and the moisture content of the dehydrated sludge can be made low as mentioned above. In addition, in the image forming apparatus of this example, the cylindrical body 21 is inclined so that the outlet opening 35 is higher than the inlet opening 34 of the cylindrical body 21, and the spiral blade of the screw 31 is further formed. Since the pitch of 22 gradually decreases from the inlet opening 34 side of the cylindrical body 21 toward the outlet opening 35, the pressure applied to the sludge in the cylindrical body 21 approaches the outlet opening 35 more reliably. Can be increased according to. In FIG. 4, the cylindrical body 21 is illustrated in a state where the cylindrical body 21 is positioned horizontally.

上述のように、本例の固液分離装置は、筒状体２１の内部に配置されたスクリュー３１を回転駆動することにより、筒状体２１の軸線方向一端側の入口開口３４から筒状体２１の内部に流入した処理対象物を筒状体２１の軸線方向他端側の出口開口３５へ向けて移動させると共に、その出口開口側に設けた規制部材４０によって筒状体２１の内部から排出される処理対象物の量を規制することにより、筒状体２１内の処理対象物に加えられる圧力を高め、その筒状体２１内を移動する処理対象物から分離された濾液を、筒状体２１に形成された濾液排出間隙ｇを通して筒状体２１外に排出させ、液体分の減少した処理対象物を筒状体２１の出口開口３５から筒状体２１外へ排出させるように構成されている。   As described above, the solid-liquid separator of this example rotates the screw 31 disposed inside the cylindrical body 21 to rotate the cylindrical body from the inlet opening 34 on one end side in the axial direction of the cylindrical body 21. The processing object that has flowed into the interior of the cylinder 21 is moved toward the outlet opening 35 on the other axial end side of the cylindrical body 21 and discharged from the inside of the cylindrical body 21 by the regulating member 40 provided on the outlet opening side. By regulating the amount of the processing object to be processed, the pressure applied to the processing object in the cylindrical body 21 is increased, and the filtrate separated from the processing object moving in the cylindrical body 21 is converted into a cylindrical shape. It is configured to discharge outside the cylindrical body 21 through the filtrate discharge gap g formed in the body 21, and to discharge the processing target with reduced liquid content from the outlet opening 35 of the cylindrical body 21 to the outside of the cylindrical body 21. ing.

ところで、上述の固液分離装置においては、その筒状体２１の内部を移動する処理対象物に対して圧力が加えられ、その圧力が、処理対象物の移動方向下流側へ行くに従って高められるので、従来のこの種の固液分離装置によって、固化しやすい処理対象物、例えば無機系の処理対象物を脱水処理すると、その処理対象物が筒状体の出口開口近傍において固まり、その処理対象物がここで詰まってしまうおそれがあった。   By the way, in the above-mentioned solid-liquid separator, pressure is applied to the processing object moving inside the cylindrical body 21, and the pressure is increased as it goes downstream in the moving direction of the processing object. When a processing object that is easily solidified, such as an inorganic processing object, is dehydrated by this type of conventional solid-liquid separation device, the processing object is solidified in the vicinity of the outlet opening of the cylindrical body. There was a risk of clogging here.

そこで、本例の固液分離装置には、出口開口３５の近傍の筒状体２１内に存する処理対象物に外力を加えて、その処理対象物を崩す崩し手段が設けられている。図示した固液分離装置の場合には、規制部材４０が、スクリュー３１と共に回転するように、該スクリュー３１に対して固定されていて、崩し手段は、かかる規制部材４０に設けられている。すなわち、図５及び図６に示すように、崩し手段は、筒状体２１を向いた側の規制部材面４３よりも外方に突出する突起４４により構成されている。崩し手段が、規制部材４０に固定され、かつ筒状体２１内に突出する突起４４より成るのである。突起４４の数は、１本であっても、複数本であってもよい。 Therefore, the solid-liquid separation device of this example is provided with a crushing means for applying an external force to the processing object existing in the cylindrical body 21 in the vicinity of the outlet opening 35 and breaking the processing object. In the case of the illustrated solid-liquid separator, the regulating member 40 is fixed to the screw 31 so as to rotate together with the screw 31, and the breaking means is provided in the regulating member 40. That is, as shown in FIGS. 5 and 6, the breaking means is constituted by a protrusion 44 that protrudes outward from the regulating member surface 43 on the side facing the cylindrical body 21. The breaking means includes a protrusion 44 that is fixed to the restricting member 40 and protrudes into the cylindrical body 21. The number of the protrusions 44 may be one or plural.

突起４４は、ねじ、溶接、かしめ又は接着剤などの適宜な固定手段によって規制部材４０に固定され、その規制部材面４３よりも外方に突出した突起４４の部分は筒状体２１の内部に位置している。   The protrusion 44 is fixed to the restricting member 40 by an appropriate fixing means such as a screw, welding, caulking, or adhesive, and the portion of the protrusion 44 protruding outward from the restricting member surface 43 is located inside the cylindrical body 21. positioned.

前述のようにスクリュー３１が回転すると、規制部材４０も回転し、これと共に突起４４も回転する。このため、この突起４４が、出口開口３５の近傍の筒状体２１内に存する処理対象物（この例では含水率の低下した汚泥）を撹拌しながら、その処理対象物に対して大きな外力を加える。これにより、その処理対象物が崩され、当該処理対象物が移動しやすい状態となって、図１及び図５に矢印Ｂで示したように、出口開口３５から筒状体外に排出される。このようにして、処理対象物が詰まりやすい無機系の汚泥などから成るときも、その処理対象物が筒状体２１内で詰まる不具合を阻止することができる。   When the screw 31 rotates as described above, the regulating member 40 also rotates, and the projection 44 also rotates together with this. For this reason, this projection 44 applies a large external force to the processing object while stirring the processing object (sludge having a reduced water content in this example) existing in the cylindrical body 21 in the vicinity of the outlet opening 35. Add. As a result, the processing object is collapsed, the processing object is easily moved, and is discharged out of the cylindrical body from the outlet opening 35 as indicated by an arrow B in FIGS. 1 and 5. In this way, even when the processing object is made of inorganic sludge or the like which is easily clogged, the problem that the processing object is clogged in the cylindrical body 21 can be prevented.

図５に示した突起４４は、棒状に形成されているが、図７に示すように、筒状体を向いた側の規制部材面４３よりも外方に突出するフィン状の突起４４Ａによって崩し手段を構成することもできる。規制部材４０が回転することにより、突起４４Ａを回転させ、これによって筒状体２１内の処理対象物を崩し、その処理対象物が詰まる不具合を阻止できる。   The protrusion 44 shown in FIG. 5 is formed in a rod shape, but as shown in FIG. 7, it is broken by a fin-like protrusion 44A that protrudes outward from the regulating member surface 43 on the side facing the cylindrical body. Means can also be configured. By rotating the restricting member 40, the protrusion 44A is rotated, whereby the processing object in the cylindrical body 21 is destroyed, and the problem that the processing object is clogged can be prevented.

さらに、図８に示すように、筒状体２１を向いた側の規制部材面４３に形成された溝４４Ｂにより崩し手段を構成することもできる。この溝４４Ｂも、規制部材４０が回転することによって、筒状体２１内の処理対象物に対して外力を加え、これを崩し、当該処理対象物が筒状体内で詰まる不具合を阻止できる。   Further, as shown in FIG. 8, the breaking means can be constituted by a groove 44 </ b> B formed in the regulating member surface 43 on the side facing the cylindrical body 21. The groove 44B also applies an external force to the processing object in the cylindrical body 21 by the rotation of the restricting member 40, and breaks it, thereby preventing the processing object from being clogged in the cylindrical body.

また、図９に示すように、スクリュー３１に設けられた突起４４Ｃにより崩し手段を構成することもできる。図９に示した突起４４Ｃは、筒状体２１の内部に位置していると共に、スクリュー３１の軸部２４に固定され、その半径方向に突出している。かかる突起４４Ｃによっても、筒状体２１内の処理対象物に大きな外力を加え、これを崩して、当該処理対象物が筒状体内に詰まる不具合を阻止できる。   Further, as shown in FIG. 9, the breaking means can be constituted by a protrusion 44 </ b> C provided on the screw 31. The protrusion 44C shown in FIG. 9 is located inside the cylindrical body 21, is fixed to the shaft portion 24 of the screw 31, and protrudes in the radial direction thereof. Such a protrusion 44C also applies a large external force to the processing object in the cylindrical body 21 and breaks it, thereby preventing the processing object from being clogged in the cylindrical body.

以上説明した固液分離装置の規制部材４０は、図１、図５及び図９から判るように、筒状体２１を向いた側の規制部材面４３が、処理対象物の搬送方向上流側へ向けて先細となったテーパ状に形成され、その全体がコーン状に形成されている。すなわち、筒状体２１を向いた側の規制部材部分４１の外径ｄが、処理対象物の移動方向上流側から下流側に向けて漸次大きくなっているのである。かかる構成によれば、崩し手段によって崩された処理対象物は、その規制部材面４３に案内されながら、規制部材４０の外周部に向けて円滑に移動し、矢印Ｂで示したように、出口開口３５からスムーズに外部に排出される。規制部材面４３をテーパ状に形成することによって、崩し手段の効果を一段と高めることができるのである。このテーパの角度αは、２０°以上で４５°以下が望ましい。   As can be seen from FIGS. 1, 5, and 9, the regulating member 40 of the solid-liquid separation apparatus described above has the regulating member surface 43 on the side facing the cylindrical body 21 upstream in the conveyance direction of the processing object. It is formed in a tapered shape that is tapered toward the end, and the whole is formed in a cone shape. That is, the outer diameter d of the regulating member portion 41 on the side facing the cylindrical body 21 is gradually increased from the upstream side toward the downstream side in the moving direction of the processing object. According to such a configuration, the processing object collapsed by the breaking means smoothly moves toward the outer peripheral portion of the regulating member 40 while being guided by the regulating member surface 43, and as indicated by the arrow B, the outlet It is smoothly discharged from the opening 35 to the outside. By forming the restricting member surface 43 in a tapered shape, the effect of the breaking means can be further enhanced. The taper angle α is preferably 20 ° or more and 45 ° or less.

以上説明した固液分離装置の筒状体２１は、互いに間隔をあけて軸線方向に配列され、かつ一体的に連結された複数の固定リング６と、各固定リング６の間に配置された可動リング３０とを有し、該可動リング３０の内径Ｄ５がスクリュー３１の外径Ｄ４よりも小さく設定されているが、本発明は、かかる形式以外の固液分離装置にも広く適用できる。例えば、可動リングをスクリューの回転により作動させるのではなく、モータによって駆動する形式の固液分離装置や、多数の固定リングを筒状に配列して筒状体を構成し、その内部に配置されたスクリューにより処理対象物を搬送し、このとき分離された液体を、各固定リングに形成された濾液排出間隙を通して外部に排出させる固液分離装置などにも広く適用できる。 The cylindrical body 21 of the solid-liquid separation apparatus described above has a plurality of fixed rings 6 that are arranged in the axial direction at intervals and are integrally connected, and a movable member disposed between the fixed rings 6. and a ring 30, but the inner diameter D 5 of the movable ring 30 is set smaller than the outer diameter D 4 of the screw 31, the present invention can be widely applied to solid-liquid separator other than such format. For example, the movable ring is not operated by the rotation of a screw, but a solid-liquid separator of a type driven by a motor, or a plurality of fixed rings are arranged in a cylindrical shape to constitute a cylindrical body, which is arranged inside the cylindrical body. The present invention can also be widely applied to a solid-liquid separator that transports a processing object by a screw and discharges the liquid separated at this time through a filtrate discharge gap formed in each fixing ring.

固液分離装置の部分断面図である。It is a fragmentary sectional view of a solid-liquid separator. １つの固定リングと、１つの可動リングと、スペーサとを示す斜視図である。It is a perspective view which shows one fixed ring, one movable ring, and a spacer. 固液分離部の分解斜視図である。It is a disassembled perspective view of a solid-liquid separation part. 固液分離部の断面図である。It is sectional drawing of a solid-liquid separation part. 図１に示した規制部材の拡大断面図である。It is an expanded sectional view of the regulating member shown in FIG. 規制部材を図５の右方より見た図である。It is the figure which looked at the control member from the right side of FIG. 崩し手段の他の例を示す、図６と同様な図である。It is a figure similar to FIG. 6 which shows the other example of a breaking means. 崩し手段のさらに他の例を示す、図６と同様な図である。It is a figure similar to FIG. 6 which shows the other example of a breaking means. スクリューに固定された突起より成る崩し手段を示す図である。It is a figure which shows the breaking means which consists of protrusions fixed to the screw.

符号の説明Explanation of symbols

６ 固定リング
２１ 筒状体
３０ 可動リング
３１ スクリュー
３４ 入口開口
３５ 出口開口
４０ 規制部材
４１ 規制部材部分
４３ 規制部材面
４４，４４Ａ，４４Ｃ 突起
４４Ｂ 溝
ｄ 外径
Ｄ４ 外径
Ｄ５ 内径
ｇ 濾液排出間隙 6 fixed ring 21 cylindrical body 30 movable ring 31 screw 34 inlet opening 35 outlet opening 40 restricting member 41 restricting member part 43 restricting member surface 44, 44A, 44C protrusion 44B groove d outer diameter D 4 outer diameter D 5 inner diameter g filtrate discharge gap

Claims (6)

筒状体の内部に配置されたスクリューを回転駆動することにより、前記筒状体の軸線方向一端側の入口開口から筒状体の内部に流入した処理対象物を筒状体の軸線方向他端側の出口開口へ向けて移動させると共に、該出口開口側に設けた規制部材によって筒状体の内部から排出される処理対象物の量を規制することにより、筒状体内の処理対象物に加えられる圧力を高め、該筒状体内を移動する処理対象物から分離された濾液を、筒状体に形成された濾液排出間隙を通して筒状体外に排出させ、液体分の減少した処理対象物を筒状体の出口開口から筒状体外へ排出させる固液分離装置において、
前記出口開口近傍の筒状体内に存する処理対象物に外力を加えて、該処理対象物を崩す崩し手段を設け、前記規制部材は、前記スクリューと共に回転するように、該スクリューに対して固定されていて、前記崩し手段は、前記規制部材に固定され、かつ前記筒状体内に突出する突起より成ることを特徴とする固液分離装置。 By rotating and driving a screw disposed inside the cylindrical body, the other end of the cylindrical body in the axial direction of the cylindrical body is allowed to flow into the cylindrical body through the inlet opening on the axial direction one end side of the cylindrical body. In addition to the processing object in the cylindrical body, the amount of the processing object discharged from the inside of the cylindrical body is regulated by a regulating member provided on the outlet opening side. The filtrate separated from the processing object moving in the cylindrical body is discharged to the outside of the cylindrical body through the filtrate discharge gap formed in the cylindrical body, and the processing object with reduced liquid content is discharged into the cylinder. In the solid-liquid separation device for discharging the cylindrical body from the outlet opening to the outside of the cylindrical body,
An external force is applied to the processing object existing in the cylindrical body in the vicinity of the outlet opening to disintegrate the processing object, and the restricting member is fixed to the screw so as to rotate together with the screw. The breaker means comprises a protrusion fixed to the restricting member and protruding into the cylindrical body . 前記突起は棒状に形成されている請求項１に記載の固液分離装置。 The solid-liquid separator according to claim 1, wherein the protrusion is formed in a rod shape . 筒状体の内部に配置されたスクリューを回転駆動することにより、前記筒状体の軸線方向一端側の入口開口から筒状体の内部に流入した処理対象物を筒状体の軸線方向他端側の出口開口へ向けて移動させると共に、該出口開口側に設けた規制部材によって筒状体の内部から排出される処理対象物の量を規制することにより、筒状体内の処理対象物に加えられる圧力を高め、該筒状体内を移動する処理対象物から分離された濾液を、筒状体に形成された濾液排出間隙を通して筒状体外に排出させ、液体分の減少した処理対象物を筒状体の出口開口から筒状体外へ排出させる固液分離装置において、
前記出口開口近傍の筒状体内に存する処理対象物に外力を加えて、該処理対象物を崩す崩し手段を設け、該崩し手段は、前記スクリューに設けられた突起より成り、該突起は前記筒状体の内部に位置していることを特徴とする固液分離装置。 By rotating and driving a screw disposed inside the cylindrical body, the other end of the cylindrical body in the axial direction of the cylindrical body is allowed to flow into the cylindrical body through the inlet opening on the axial direction one end side of the cylindrical body. In addition to the processing object in the cylindrical body, the amount of the processing object discharged from the inside of the cylindrical body is regulated by a regulating member provided on the outlet opening side. The filtrate separated from the processing object moving in the cylindrical body is discharged to the outside of the cylindrical body through the filtrate discharge gap formed in the cylindrical body, and the processing object with reduced liquid content is discharged into the cylinder. In the solid-liquid separation device for discharging the cylindrical body from the outlet opening to the outside of the cylindrical body,
A crushing means for crushing the processing object by applying an external force to the processing object existing in the cylindrical body in the vicinity of the outlet opening is provided, and the crushing means is constituted by a protrusion provided on the screw, and the protrusion is the cylinder A solid-liquid separation device, which is located inside a cylindrical body . 前記突起は、前記スクリューの軸部に固定され、かつ該軸部の半径方向に突出している請求項３に記載の固液分離装置。 The protrusion is fixed to the shaft portion of the screw, and the solid-liquid separating apparatus according to claim 3 that protrude in the radial direction of the shaft portion. 前記筒状体を向いた側の規制部材部分の外径が、処理対象物の移動方向上流側から下流側に向けて漸次大きくなっている請求項１乃至４のいずれかに記載の固液分離装置。 The solid-liquid separation according to any one of claims 1 to 4, wherein an outer diameter of the regulating member portion on the side facing the cylindrical body is gradually increased from the upstream side to the downstream side in the moving direction of the processing object. apparatus. 前記筒状体は、互いに間隔をあけて軸線方向に配列された複数の固定リングと、各固定リングの間に配置された可動リングとを有し、該可動リングの内径が前記スクリューの外径よりも小さく設定されている請求項１乃至５のいずれかに記載の固液分離装置。 The cylindrical body has a plurality of fixed rings arranged in the axial direction at intervals, and a movable ring disposed between the fixed rings, and the inner diameter of the movable ring is the outer diameter of the screw. The solid-liquid separation device according to any one of claims 1 to 5, wherein the solid-liquid separation device is set smaller .
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