JP6384015B1 - Punching metal drum screen device - Google Patents

Punching metal drum screen device Download PDF

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JP6384015B1
JP6384015B1 JP2018100938A JP2018100938A JP6384015B1 JP 6384015 B1 JP6384015 B1 JP 6384015B1 JP 2018100938 A JP2018100938 A JP 2018100938A JP 2018100938 A JP2018100938 A JP 2018100938A JP 6384015 B1 JP6384015 B1 JP 6384015B1
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liquid
processed
treated
drum screen
body portion
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JP2019202302A (en
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誠人 尾田
誠人 尾田
寿生 萩本
寿生 萩本
稔 菅野
稔 菅野
博文 代田
博文 代田
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Mitsubishi Heavy Industries Environmental and Chemical Engineering Co Ltd
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Priority to PCT/JP2019/020467 priority patent/WO2019225700A1/en
Priority to KR1020207029846A priority patent/KR102534339B1/en
Priority to CN201980025833.4A priority patent/CN112105433B/en
Priority to SG11202010219XA priority patent/SG11202010219XA/en
Publication of JP2019202302A publication Critical patent/JP2019202302A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/126—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using drum filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/38—Feed or discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/801—Driving means, shaft packing systems or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/804—Accessories integrally combined with devices for controlling the filtration
    • B01D33/806—Accessories integrally combined with devices for controlling the filtration by flow measuring

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)

Abstract

【課題】装置の小型化を可能とするとともにドラムスクリーンへ落下する被処理液の流量を緩和して被処理液を適切に処理することを可能とするパンチングメタルドラムスクリーン装置を提供する。【解決手段】中心軸が略水平方向に配置され且つ壁面がパンチングメタルで形成された円筒形の胴部と、胴部の一端側を閉塞する第一閉塞板と、第一閉塞板を介して被処理液を供給する被処理液導入管と、被処理液導入管に接続され、被処理液を受ける供給部と、胴部の他端側を閉塞する第二閉塞板と、中心軸を中心として胴部を回転可能に支持する支持体と、胴部を回転させる駆動手段とを有する。供給部は、被処理液の流れを胴部の径方向外方に変えるとともに分散し、第一閉塞板の近傍を少なくとも含む壁面に、被処理液を落下させる。【選択図】図１Provided is a punching metal drum screen device that can reduce the size of the device and moderate the flow rate of the liquid to be processed falling on the drum screen to appropriately process the liquid to be processed. A cylindrical body having a central axis arranged in a substantially horizontal direction and a wall surface made of punching metal, a first closing plate for closing one end of the body, and a first closing plate A treatment liquid introduction pipe for supplying a treatment liquid, a supply section connected to the treatment liquid introduction pipe for receiving the treatment liquid, a second closing plate for closing the other end side of the body, and a central axis And a support body that rotatably supports the body portion, and a driving unit that rotates the body portion. The supply unit changes and disperses the flow of the liquid to be processed outward in the radial direction of the body part, and drops the liquid to be processed onto the wall surface including at least the vicinity of the first closing plate. [Selection] Figure 1

Description

本発明は、パンチングメタルで形成されたドラムスクリーン装置に関する。   The present invention relates to a drum screen device formed of punching metal.

し尿、浄化槽汚泥等の有機性廃水は、汚泥再生処理施設にて処理されている。汚泥再生処理施設では、有機性廃水の処理の効率化のために、有機性廃水の中から繊維分を分離する処理や汚泥濃縮の処理が行われている。   Organic wastewater such as human waste and septic tank sludge is treated in a sludge recycling facility. In the sludge regeneration treatment facility, in order to increase the efficiency of the treatment of organic wastewater, treatment for separating fibers from organic wastewater and treatment for sludge concentration are performed.

例えば、特許文献１、特許文献２に記載の従来技術では、ウェッジワイヤーやパンチングメタルで形成されたドラムスクリーンを備えた繊維除去装置で汚泥に含まれる繊維を分離している。   For example, in the prior art described in Patent Document 1 and Patent Document 2, fibers contained in sludge are separated by a fiber removal device including a drum screen formed of a wedge wire or punching metal.

一方、特許文献３、及び特許文献４に記載の従来技術では、ウェッジワイヤーやパンチングメタルで形成されたドラムスクリーンを備えた汚泥濃縮装置で汚泥濃縮を行っている。   On the other hand, in the prior art described in Patent Document 3 and Patent Document 4, sludge concentration is performed by a sludge concentrating device including a drum screen formed of a wedge wire or punching metal.

特開平１０−１９２６１５号公報Japanese Patent Laid-Open No. 10-192615 韓国特許第１０−０９０４２８３号公報Korean Patent No. 10-0904283 特開２００７−３３０９２０号公報JP 2007-330920 A 特開２００２−１７７７１２号公報JP 2002-177712 A

従来、多数の貫通孔が形成されたドラムスクリーンに被処理液を供給する際、ドラムスクリーンの外部に被処理液が漏れてドラムスクリーンの外部に配置された別の装置の汚染を回避するため、ドラムスクリーンの端部は避けて内部に被処理液を供給しており、このためドラムスクリーンの有効長を十分に活用できず、ドラムスクリーンが大型化する恐れがあった。また、被処理液は、被処理液を供給する管の開口と実質的に同一の寸法でドラムスクリーンの一箇所に集中して落下するため、ドラムスクリーンの貫通孔当たりの被処理液の流量が過剰になり、被処理液を適切に処理できない恐れがあった。   Conventionally, when supplying a liquid to be processed to a drum screen having a large number of through holes, the liquid to be processed leaks to the outside of the drum screen, so as to avoid contamination of another device disposed outside the drum screen. The liquid to be treated is supplied to the inside avoiding the end of the drum screen, and therefore the effective length of the drum screen cannot be fully utilized, and the drum screen may be enlarged. In addition, since the liquid to be processed falls in a concentrated manner on one part of the drum screen with substantially the same dimensions as the opening of the pipe supplying the liquid to be processed, the flow rate of the liquid to be processed per through hole of the drum screen There was a fear that the liquid to be treated could not be properly treated.

この発明は、上述した事情に鑑みてなされたものであって、ドラムスクリーンの有効長を最大限に活用して装置の小型化を可能とするとともに、ドラムスクリーンへ落下する被処理液の流量を緩和して被処理液を適切に処理することを可能とするパンチングメタルドラムスクリーン装置を提供する。   The present invention has been made in view of the above-described circumstances, and enables the apparatus to be miniaturized by making the best use of the effective length of the drum screen, and the flow rate of the liquid to be treated falling on the drum screen. Provided is a punching metal drum screen device that can relax and appropriately process a liquid to be processed.

本発明のパンチングメタルドラムスクリーン装置は、中心軸が略水平方向に配置され且つ壁面がパンチングメタルで形成された円筒形の胴部と、前記中心軸の近傍を除き前記胴部の一端側を閉塞する第一閉塞板と、前記中心軸上に配置され、前記第一閉塞板を介して被処理液を供給する被処理液導入管と、前記被処理液導入管に接続され、前記被処理液を受ける供給部と、前記胴部の他端側を閉塞する第二閉塞板と、前記中心軸を中心として前記胴部を回転可能に支持する支持体と、前記胴部を回転させる駆動手段と、を有し、前記第二閉塞板の近傍を除き前記壁面には複数の孔が形成され、前記第二閉塞板の近傍の前記壁面には前記孔より大きな複数の塊状物排出口が形成され、前記供給部は、略台形の案内板と前記略台形の底辺を除く辺に接続した変流板とを備え、前記変流板で前記被処理液の流れを前記胴部の径方向外方に変えるとともに、前記被処理液を前記案内板の上で分散し、前記第一閉塞板の近傍を少なくとも含む前記壁面に、前記底辺から前記分散した被処理液を落下させることを特徴とする。   The punching metal drum screen device according to the present invention includes a cylindrical body portion having a central axis arranged in a substantially horizontal direction and a wall surface made of punching metal, and one end side of the body portion being closed except for the vicinity of the central axis. A first closing plate that is disposed on the central axis, and a treatment liquid introduction pipe that supplies a treatment liquid via the first closure plate, and is connected to the treatment liquid introduction pipe, and the treatment liquid Receiving portion, a second closing plate for closing the other end side of the body portion, a support body for rotatably supporting the body portion around the central axis, and a driving means for rotating the body portion A plurality of holes are formed in the wall surface except in the vicinity of the second closing plate, and a plurality of lump discharge ports larger than the holes are formed in the wall surface in the vicinity of the second closing plate. , The supply unit is a side excluding a substantially trapezoidal guide plate and a bottom of the substantially trapezoidal shape. A current plate that is connected, and the current plate changes the flow of the liquid to be processed outwardly in the radial direction of the body portion, and the liquid to be processed is dispersed on the guide plate. The dispersed liquid to be treated is dropped from the bottom side onto the wall surface including at least the vicinity of the blocking plate.

この構成によれば、胴部の端から被処理液の処理ができるので、パンチングメタルドラムスクリーン装置を小型化することができる。また、被処理液を供給部の変流板と案内板で分散してから胴部の壁面へ被処理液を落下させるので、被処理液と胴部壁面の接触面積を増加するとともに、各孔に対する被処理液の流量を緩和し、被処理液を適切に処理することができる。   According to this configuration, since the liquid to be processed can be processed from the end of the body portion, the punching metal drum screen device can be reduced in size. In addition, since the liquid to be treated is dispersed by the current transformer plate and the guide plate of the supply unit and then the liquid to be treated is dropped onto the wall surface of the barrel, the contact area between the liquid to be treated and the barrel wall surface is increased and each hole is The flow rate of the liquid to be processed can be relaxed and the liquid to be processed can be appropriately processed.

上記パンチングメタルドラムスクリーン装置では、被処理液は、繊維を含む汚泥であり、供給部は、回転により上方へ移動する胴部の壁面に被処理液を落下させ、駆動手段は、胴部の内部で繊維をロール状に成長させる回転速度で胴部を回転する構成としてよい。
この構成によれば、パンチングメタルドラムスクリーン装置は自己洗浄するので、ドラムスクリーンの目詰まりを取り除くための清掃作業を定常的に実施する必要がなく、また、ブラシ等の洗浄装置を別途設置する必要もないため、製造コストやメンテナンスコストの観点で優れたパンチングメタルドラムスクリーン装置を提供することができる。 In the punching metal drum screen device, the liquid to be processed is sludge containing fibers, the supply unit drops the liquid to be processed on the wall surface of the body part that moves upward by rotation, and the driving means is provided inside the body part. It is good also as a structure which rotates a trunk | drum with the rotational speed which grows a fiber in roll shape.
According to this configuration, since the punching metal drum screen device performs self-cleaning, it is not necessary to regularly perform cleaning work for removing clogging of the drum screen, and it is also necessary to separately install a cleaning device such as a brush. Therefore, it is possible to provide a punching metal drum screen device that is excellent in terms of manufacturing cost and maintenance cost.

上記パンチングメタルドラムスクリーン装置では、被処理液は、凝集剤が混入された汚泥であり、駆動手段は、胴部の内部で被処理液をロール状に成長させない回転速度で胴部を回転する構成としてよい。
この構成によれば、被処理液と胴部の壁面との接触面積を大きくし、汚泥濃縮を効率良く行うことが可能となる。
また、上記パンチングメタルドラムスクリーン装置では、塊状物排出口に通じる排出管に被処理液の水分流量を検出する流量センサと、被処理液導入管に設けられた流量調整手段とを設け、流量センサの検出値が所定値より大きい場合には、流量調整手段を制御して被処理液の供給量を減少させ、または駆動手段を制御して胴部の回転速度を増加させる制御装置をさらに備える構成としてもよい。
この構成によれば、必要以上の被処理液が供給されている又は胴部の回転速度が遅すぎる場合に、制御装置により自動的に最適な被処理液の供給量または最適な胴部の回転速度に調整されるので、繊維除去や汚泥濃縮などの用途において、被処理液を適切に処理することができる。 In the punching metal drum screen device, the liquid to be treated is sludge mixed with a flocculant, and the driving means rotates the barrel at a rotation speed that does not grow the liquid to be treated in a roll shape inside the barrel. As good as
According to this configuration, it is possible to increase the contact area between the liquid to be treated and the wall surface of the body portion, and to efficiently perform sludge concentration.
In the punching metal drum screen device, a flow rate sensor for detecting the water flow rate of the liquid to be processed is provided in the discharge pipe leading to the lump discharge port, and a flow rate adjusting means provided in the liquid to be processed introduction pipe. If the detected value is larger than the predetermined value, the flow rate adjusting means is controlled to decrease the supply amount of the liquid to be processed, or the driving means is controlled to increase the rotational speed of the body part. It is good.
According to this configuration, when an excessive amount of liquid to be processed is supplied or when the rotational speed of the body is too slow, the control apparatus automatically supplies the optimal amount of liquid to be processed or rotates the optimal body. Since the speed is adjusted, the liquid to be treated can be appropriately treated in applications such as fiber removal and sludge concentration.

本発明によれば、ドラムスクリーンの有効長を最大限に活用して装置の小型化を可能とするとともに、ドラムスクリーンへ落下する被処理液の流量を緩和して被処理液を適切に処理することを可能とするパンチングメタルドラムスクリーン装置を提供することが可能となる。   According to the present invention, the effective length of the drum screen can be maximized to reduce the size of the apparatus, and the flow rate of the liquid to be processed falling onto the drum screen can be reduced to appropriately process the liquid to be processed. It is possible to provide a punching metal drum screen device that makes it possible.

本発明のパンチングメタルドラムスクリーン装置を示す概略構成図である。It is a schematic block diagram which shows the punching metal drum screen apparatus of this invention. 被処理液導入管の先端に接続した供給部を示す斜視図である。It is a perspective view which shows the supply part connected to the front-end | tip of a to-be-processed liquid inlet tube. 図１のIII-III線断面から供給部を見た断面図である。It is sectional drawing which looked at the supply part from the III-III line cross section of FIG. 変形例のパンチングメタルドラムスクリーン装置を示す概略構成図である。It is a schematic block diagram which shows the punching metal drum screen apparatus of a modification.

本発明の実施形態のパンチングメタルドラムスクリーン装置１００（以下、ドラムスクリーン装置１００という）について図１〜図３を参照して説明する。なお、ドラムスクリーン装置１００は、繊維除去装置または汚泥濃縮装置として使用することができる。   A punching metal drum screen device 100 (hereinafter referred to as a drum screen device 100) according to an embodiment of the present invention will be described with reference to FIGS. The drum screen device 100 can be used as a fiber removing device or a sludge concentrating device.

図１は、本発明のドラムスクリーン装置１００を示す概略構成図である。ドラムスクリーン装置１００は、両端に閉塞板２０Ａ及び２０Ｂを備えた円筒形の胴部１０と、胴部１０の内部へ被処理液Ａを導入する直管状の被処理液導入管１１と、被処理液導入管１１の先端に接続されて被処理液Ａの流れを変える供給部１７と、胴部１０を回転可能に支持する支持体１２（１２a及び１２b）と、胴部１０を一方向へ回転させる駆動手段１３を有する。   FIG. 1 is a schematic configuration diagram showing a drum screen device 100 of the present invention. The drum screen device 100 includes a cylindrical body 10 provided with closing plates 20A and 20B at both ends, a straight tube-to-be-processed liquid introduction pipe 11 that introduces the liquid A to be processed into the body 10, and a process target. A supply unit 17 that is connected to the tip of the liquid introduction pipe 11 and changes the flow of the liquid A to be treated, a support 12 (12a and 12b) that rotatably supports the body 10, and the body 10 is rotated in one direction. The driving means 13 is provided.

胴部１０は、壁面１４がパンチングメタルで形成された筒状体である。胴部１０の中心軸１０Ａ（仮想の軸）は略水平方向に配置されている。胴部１０は、図１に示したとおり、被処理液Ａが導入される被処理液導入部αと、被処理液Ａから水分の一部（汚泥もしくは水分Ｗ）が除去される分離液排出部βと、分離液排出部βで被処理液Ａから汚泥もしくは水分Ａが除去された塊状物Ｓを排出する塊状物排出部γの３つの部分に分けられる。すなわち、胴部１０の全長は、被処理液導入部α、分離液排出部β、及び塊状物排出部γの中心軸１０Ａに沿った長さの和となる。
なお、ドラムスクリーン装置１００を繊維除去装置として使用する場合には、被処理液Ａは繊維を含む汚泥であり、且つ、塊状物Ｓは繊維である。また、ドラムスクリーン装置１００を汚泥濃縮装置として使用する場合には、被処理液Ａは凝集剤が注入された汚泥であり、且つ、塊状物Ｓは濃縮汚泥となる。
胴部１０の回転に伴い、被処理液導入部αに導入された被処理液Ａは、被処理液導入部αから塊状物排出部γに向かって汚泥もしくは水分Ｗが次第に除去されながら進行する。
被処理液導入部α、すなわち胴部１０の一端側には、被処理液Ａを連続的に供給する被処理液導入管１１が、中心軸１０Ａ上に配置されている。被処理液導入管１１は、胴部１０の内部においては直線状の管であるが、胴部１０の外部においては適宜屈曲した管でありうる。
後述するとおり、胴部１０の内部の被処理液導入管１１の先端には供給部１７が設置されており、供給部１７は、中心軸１０Ａに沿って直進する被処理液Ａの流れを曲げ、胴部１０の径方向外方に導く。
被処理液導入部αの壁面１４には、パンチングにより多数の円形の孔１５が均等に配置されており、分離液排出部βと同様、胴部１０の回転に伴い、孔１５から胴部１０の外部かつ下方へ汚泥もしくは水分Ｗが排出される。孔１５の直径は、約１ｍｍとしてよい。このような小径の孔１５が形成されたパンチングメタルは、方形の孔が開くように編まれたウェッジワイヤーに比べ、被処理液Ａに含まれる夾雑物や繊維が絡み付きにくい。すなわち、孔１５の目詰まりが発生しにくい。
被処理液導入部αの端部には、中心軸１０Ａと同軸の円形の開口を備え、当該開口を除いて胴部１０の径方向を全て閉塞する閉塞板２０Ｂが配置されている。当該開口は、被処理液導入管１１を胴部１０の内部へ挿通するのに必要かつ十分な大きさであり、被処理液Ａが当該開口から胴部１０の外部へ流出しない程度の大きさである。
支持体１２aは、閉塞板２０Ｂと接続し、中心軸１０Ａと同軸の円筒状の部材である。当該円筒の内径は、被処理液導入管１１を胴部１０の内部へ挿通するのに必要かつ十分な大きさである。 The trunk | drum 10 is a cylindrical body in which the wall surface 14 was formed with the punching metal. A central axis 10A (virtual axis) of the body portion 10 is arranged in a substantially horizontal direction. As shown in FIG. 1, the body portion 10 includes a liquid to be processed introduction portion α into which the liquid A to be processed is introduced, and a separation liquid discharge from which a part of moisture (sludge or water W) is removed from the liquid A to be processed. It is divided into three parts: a part β and a bulk discharge part γ that discharges the bulk S from which the sludge or moisture A has been removed from the liquid to be treated A by the separation liquid discharge part β. That is, the total length of the body portion 10 is the sum of the lengths along the central axis 10A of the liquid to be treated introduction portion α, the separation liquid discharge portion β, and the lump discharge portion γ.
In addition, when using the drum screen apparatus 100 as a fiber removal apparatus, the to-be-processed liquid A is the sludge containing a fiber, and the lump S is a fiber. Moreover, when using the drum screen apparatus 100 as a sludge concentration apparatus, the to-be-processed liquid A is the sludge into which the coagulant | flocculant was inject | poured, and the lump S turns into concentrated sludge.
As the body portion 10 rotates, the liquid A introduced into the liquid inlet α to be processed proceeds while the sludge or moisture W is gradually removed from the liquid inlet α to the lump discharge portion γ. .
A treatment liquid introduction pipe 11 for continuously supplying the treatment liquid A is disposed on the central axis 10 </ b> A at the treatment liquid introduction part α, that is, one end side of the body part 10. The liquid to be treated introduction pipe 11 is a straight pipe inside the trunk section 10, but may be a pipe that is appropriately bent outside the trunk section 10.
As will be described later, a supply unit 17 is installed at the tip of the processing solution introduction pipe 11 inside the body portion 10, and the supply unit 17 bends the flow of the processing solution A that goes straight along the central axis 10A. Then, it is guided radially outward of the body 10.
A large number of circular holes 15 are evenly arranged by punching on the wall surface 14 of the liquid introduction portion α to be treated. Similar to the separation liquid discharge portion β, the body portion 10 extends from the holes 15 with the rotation of the body portion 10. Sludge or moisture W is discharged to the outside and below. The diameter of the hole 15 may be about 1 mm. The punching metal in which such small-diameter holes 15 are formed is less likely to get entangled with impurities and fibers contained in the liquid A to be processed, compared to a wedge wire knitted so as to open a square hole. That is, the hole 15 is not easily clogged.
A closing plate 20B that includes a circular opening coaxial with the central axis 10A and closes the entire radial direction of the body 10 except for the opening is disposed at the end of the liquid introduction portion α to be processed. The opening has a size that is necessary and sufficient to allow the liquid to be processed introduction pipe 11 to be inserted into the body 10, and has a size that does not allow the liquid A to be processed to flow out of the body 10 from the opening. It is.
The support 12a is a cylindrical member that is connected to the closing plate 20B and coaxial with the central axis 10A. The inner diameter of the cylinder is a size necessary and sufficient for inserting the liquid to be treated introduction pipe 11 into the body 10.

分離液排出部βは、被処理液導入部αと塊状物排出部γの間に配置され、被処理液導入部αと同様に多数の孔１５が均等に配置されている。従って、胴部１０の回転に伴い、孔１５から胴部１０の外部かつ下方へ汚泥もしくは水分Ｗが排出される。
なお、分離液排出部１５及び被処理液導入部αの下方には、汚泥もしくは水分Ｗを受ける第１排出管１６が設けられている。
塊状物排出部γの端部には、胴部１０の径方向を全て閉塞する閉塞板２０Ａが配置されている。閉塞板２０Ａと上述の閉塞板２０Ｂにより、胴部１０の内部に供給された被処理液Ａが胴部１０の外部に配置された周辺機器に飛散することを回避できるので、周辺機器の汚染や腐食を防止することができる。
また、閉塞板２０Ａと分離液排出部βの間には、塊状物排出部γの壁面１４の周方向に、多数の方形（例えば、長方形）の排出口２２が均等に配置されている。従って、胴部１０の回転に伴い、排出口２２から胴部１０の外部かつ下方へ塊状物Ｓが排出される。排出口２２は、孔１５より大きな開口面積を有する。例えば、排出口２２の寸法を１２ｃｍ×１５ｃｍとしてよい。孔１５と同様、排出口２２もパンチングにより開孔されてよい。
排出口２２は胴部１０の周方向寸法を、より大きくすることが好ましい。周方向寸法を大きくすることで、ドラムスクリーン装置の長さをコンパクトにでき且つ多量の塊状物Ｓを一度に排出できる。
なお、塊状物排出部γの下方には、排出口２２の寸法より大きな開口寸法で塊状物Ｓを受ける第２排出管２３が設けられている。
支持体１２ｂは、閉塞板２０Ａと接続し、中心軸１０Ａと同軸の円柱状の部材である。 The separation liquid discharge part β is arranged between the liquid to be processed introduction part α and the mass discharge part γ, and a large number of holes 15 are evenly arranged like the liquid introduction part α to be processed. Therefore, along with the rotation of the body portion 10, sludge or moisture W is discharged from the hole 15 to the outside of the body portion 10 and downward.
A first discharge pipe 16 that receives sludge or moisture W is provided below the separation liquid discharge section 15 and the liquid introduction section α to be processed.
A closing plate 20A that closes the entire radial direction of the body portion 10 is disposed at the end of the lump discharge portion γ. The obstruction plate 20A and the obstruction plate 20B described above can prevent the liquid A to be processed supplied to the inside of the body portion 10 from splashing to peripheral devices arranged outside the body portion 10, so that contamination of peripheral devices can be avoided. Corrosion can be prevented.
In addition, a large number of rectangular (for example, rectangular) discharge ports 22 are evenly arranged in the circumferential direction of the wall surface 14 of the block discharge part γ between the closing plate 20A and the separation liquid discharge part β. Accordingly, the lump S is discharged from the discharge port 22 to the outside of the barrel 10 and downward as the barrel 10 rotates. The discharge port 22 has an opening area larger than that of the hole 15. For example, the dimension of the discharge port 22 may be 12 cm × 15 cm. As with the hole 15, the discharge port 22 may be opened by punching.
The discharge port 22 preferably has a larger circumferential dimension of the body portion 10. By increasing the circumferential dimension, the length of the drum screen device can be made compact and a large amount of the mass S can be discharged at a time.
A second discharge pipe 23 that receives the block S with an opening size larger than the size of the discharge port 22 is provided below the block discharge unit γ.
The support 12b is a cylindrical member that is connected to the closing plate 20A and coaxial with the central axis 10A.

支持体１２（支持体１２a及び１２ｂ）は、これらを回転可能に支持する部材（図示略）で支持される。また、図１に示すように、支持体１２を回転させるモータ等の駆動手段１３が設けられている。駆動手段１３が支持体１２を回転させることで、支持体１２と一体に接続された胴部１０も回転する。
駆動手段１３から支持体１２への駆動伝達手段はチェーンとスプロケットなど既知の適当な手段を用いることができる。 The support 12 (supports 12a and 12b) is supported by a member (not shown) that rotatably supports them. Further, as shown in FIG. 1, driving means 13 such as a motor for rotating the support 12 is provided. When the driving unit 13 rotates the support body 12, the trunk portion 10 connected integrally with the support body 12 also rotates.
As the drive transmission means from the drive means 13 to the support 12, known appropriate means such as a chain and a sprocket can be used.

では、図２及び図３を用いて、被処理液導入管１１に接続した供給部１７を詳述する。
図２に示すように、供給部１７は、略台形の案内板１９と、上記台形の上辺に接続した変流板１８Ａと、被処理液導入管１１に接続し、且つ、変流板１８Ａ及び案内板１９に接続した変流板１８Ｂと、変流板１８Ｂに対向し、且つ、変流板１８Ａ及び案内板１９に接続した変流板１８Ｃを有する。上記台形の上辺は、底辺よりも短く、底辺よりも中心軸１０Ａに近い位置に配置される。
変流板１８Ｂには、被処理液導入管１１から案内板１９上に被処理液Ａを導入するための開口が形成されているが、被処理液導入管１１は当該開口を貫通して変流板１８Ｂに接続してもよいし、被処理液導入管１１の端部である導入管開口部１１Ａを当該開口に接続してもよい。
変流板１８（１８Ａ、１８Ｂ、１８Ｃ）は、案内板１９と垂直に接続している。また、変流板１８の高さは、被処理液Ａが変流板１８を越えて流れることができない高さに設定されている。
変流板１８Ａは、中心軸１０Ａに略平行に配置される。変流板１８Ｂは、中心軸１０Ａに沿って被処理液導入管１１を流れる被処理液の流れ方向（イ）と逆方向に、中心軸１０Ａに垂直な方向から角度θ１だけ傾いて、略台形の案内板１９の右辺に接続している。変流板１８Ｃは、上記被処理液の流れ方向（イ）と同方向に、中心軸１０Ａに垂直な方向から角度θ２だけ傾いて、略台形の案内板１９の左辺に接続している。角度θ１と角度θ２は同じ角度でもよいし、異なる角度でもよい。被処理液の性状や流速に応じて、０°＜θ１≦６０°、０°＜θ２≦６０°で適宜設定される。
図３は、図１のIII-III線断面から供給部１７を見た断面図である。案内面１９は、胴部１０の中心軸１０Ａの鉛直方向かつ下方から、胴部１０の回転方向に角度θ３だけ傾いて配置される。角度θ３は、０°＜θ３≦６０°の範囲に設定される。また、図３において、胴部１０の径方向における供給部１７の中心軸１０Ａからの長さＬは、胴部１０の半径をｒとしたとき、１/２ｒ≦Ｌ≦４/５ｒの範囲に設定される。
ドラムスクリーン装置１００を繊維除去装置として使用する場合には、被処理液Ａが壁面１４に衝突して飛び散らない程度に緩やかに被処理液Ａを胴部１０内に導入できれば良いので、Ｌの寸法は短めに設定してよく、例えばＬ≒１/２ｒとしてよい。一方、ドラムスクリーン装置１００を汚泥濃縮装置として使用する場合には、凝集剤が混入されて汚泥フロックが大径化した被処理液Ａが上記衝突で破壊・細分化しないように、繊維除去装置として使用する場合よりもさらに緩やかに壁面１４へ被処理液Ａを供給する必要があることから、Ｌの寸法はできるだけ長めに設定する必要があり、３/４ｒ≦Ｌ≦４/５ｒとするのが望ましい。少なくとも、Ｌ≒３/４ｒであれば、汚泥濃縮装置として十分に機能することが可能である。もちろん、ドラムスクリーン装置１００を繊維除去装置として使用する場合においても、３/４ｒ≦Ｌ≦４/５ｒの範囲に設定してもよく、Ｌ≒３/４ｒとしてもよい。
ここで、図２及び図３を用いて、供給部１７における被処理液Ａの流れを説明する。
被処理液導入管１１の内部を流れた被処理液Ａは、導入管開口部１１Ａから方向（イ）に向かって放出される。放出された被処理液Ａは、供給部１７の変流板１８Ｃに衝突し、方向（イ）から大きく方向転換される。すなわち、放出された被処理液Ａの一部は、案内板１９上かつ変流板１８Ｃに沿って流れ、また、被処理液Ａの一部は変流板１８Ｃで跳ね返ることで案内板１９上かつ変流板１８Ｂに沿って流れ、さらに変流板１８Ｃで跳ね返った被処理液Ａの一部は、変流板１８Ａを越えて流れることはできず、案内板１９上かつ変流板１８Ｃと変流板１８Ｂの間を流れる。
言い換えれば、供給部１７は、略台形の案内板１９の底辺から流れ落ちる被処理液Ａの流量が、当該底辺のいずれの箇所でもほぼ均等になるよう分散して、壁面１４に向かって被処理液Ａを放出し、被処理液Ａを当該壁面上に落下させる。
例えば、供給部１７を設置せず、被処理液導入管１１の先端を下方へ９０°曲げて被処理液Ａを壁面１４へ放出する場合には、導入管開口部１１Ａと実質的に同じ面積で、壁面１４へ被処理液Ａが衝突するため、壁面１４のうち被処理液Ａが落下する箇所の各孔１５当たりの流量が過剰となり、被処理液Ａの繊維除去もしくは汚泥濃縮ができなくなるとともに汚泥もしくは水分Ｗを孔１５から適切に排出することができない恐れがある。しかしながら、供給部１７は、変流板１８で被処理液Ａの流れを変え且つ案内板１９上で被処理液Ａを分散するので、被処理液導入管１１の開口である導入管開口部１１Ａよりも大幅に広い面積で被処理液Ａを壁面１４に衝突させることができる。従って、規則的に配置された複数の孔１５の１つ当たりの被処理液Ａの流量を少なく、しかも各孔１５のそれぞれに対する流量を均一化することができるため、被処理液Ａの汚泥もしくは水分Ｗを孔１５から適切に排出することができる。
また、案内板１９上かつ変流板１８Ｂに沿って流れた被処理液Ａ、すなわち、方向（イ）と逆方向かつ下方に流れを変えた被処理液Ａは、被処理液導入部αにおける閉塞板２０Ｂと壁面１４の接続箇所近傍に落下するよう設計される。従って、孔１５が形成された胴部１０の最も端の部分から被処理液Ａの汚泥もしくは水分Ｗを排出できるので、胴部１０の有効長を十分に活用することが可能となる。 Then, the supply part 17 connected to the to-be-processed liquid introduction pipe | tube 11 is explained in full detail using FIG.2 and FIG.3.
As shown in FIG. 2, the supply unit 17 is connected to the substantially trapezoidal guide plate 19, the current transformation plate 18 </ b> A connected to the upper side of the trapezoid, the liquid to be treated introduction pipe 11, and the current transformation plate 18 </ b> A and A current transformation plate 18B connected to the guide plate 19 and a current transformation plate 18C facing the current transformation plate 18B and connected to the current transformation plate 18A and the guide plate 19 are provided. The top side of the trapezoid is shorter than the bottom side and is disposed at a position closer to the central axis 10A than the bottom side.
An opening for introducing the liquid to be processed A from the liquid to be processed introducing pipe 11 onto the guide plate 19 is formed in the current changing plate 18B, but the liquid to be processed introducing pipe 11 passes through the opening to change the shape. You may connect to the flow board 18B, and you may connect 11 A of inlet pipe opening parts which are the edge parts of the to-be-processed liquid inlet pipe 11 to the said opening.
The current transformation plate 18 (18A, 18B, 18C) is connected to the guide plate 19 perpendicularly. Further, the height of the current transformation plate 18 is set to a height at which the liquid A to be treated cannot flow beyond the current transformation plate 18.
Current transformer plate 18A is arranged substantially parallel to central axis 10A. The current transformation plate 18B is substantially trapezoidally inclined by an angle θ1 from the direction perpendicular to the central axis 10A in the direction opposite to the flow direction (A) of the liquid to be processed flowing through the liquid to be processed introduction pipe 11 along the central axis 10A. The right side of the guide plate 19 is connected. The current transformation plate 18C is inclined by an angle θ2 from the direction perpendicular to the central axis 10A in the same direction as the flow direction (a) of the liquid to be treated, and is connected to the left side of the substantially trapezoidal guide plate 19. The angle θ1 and the angle θ2 may be the same angle or different angles. Depending on the properties of the liquid to be treated and the flow velocity, 0 ° <θ1 ≦ 60 ° and 0 ° <θ2 ≦ 60 ° are set as appropriate.
FIG. 3 is a cross-sectional view of the supply unit 17 as seen from the cross-section taken along line III-III in FIG. The guide surface 19 is disposed so as to be inclined by an angle θ3 in the rotation direction of the trunk portion 10 from the vertical direction and below the central axis 10A of the trunk portion 10. The angle θ3 is set in a range of 0 ° <θ3 ≦ 60 °. In FIG. 3, the length L from the central axis 10A of the supply unit 17 in the radial direction of the body part 10 is in a range of 1 / 2r ≦ L ≦ 4 / 5r, where r is the radius of the body part 10. Is set.
When the drum screen device 100 is used as a fiber removing device, it is sufficient that the liquid A to be processed can be gently introduced into the body 10 so that the liquid A does not collide with the wall surface 14 and scatter. May be set shorter, for example, L≈1 / 2r. On the other hand, when the drum screen device 100 is used as a sludge concentrating device, it is used as a fiber removing device so that the liquid A to be treated in which the flocculant is mixed and the sludge floc has a large diameter is not destroyed or subdivided by the collision. Since it is necessary to supply the liquid A to be treated to the wall surface 14 more gently than in the case of use, the dimension of L needs to be set as long as possible, and 3 / 4r ≦ L ≦ 4 / 5r. desirable. If at least L≈3 / 4r, it can sufficiently function as a sludge concentrator. Of course, even when the drum screen device 100 is used as a fiber removing device, it may be set in the range of 3 / 4r ≦ L ≦ 4 / 5r, or L≈3 / 4r.
Here, the flow of the liquid A to be processed in the supply unit 17 will be described with reference to FIGS. 2 and 3.
The liquid to be processed A that has flowed inside the liquid to be processed introducing pipe 11 is discharged from the inlet pipe opening portion 11A in the direction (A). The discharged liquid A to be processed collides with the current transformation plate 18C of the supply unit 17 and is largely changed from the direction (A). That is, a part of the discharged liquid A to be processed flows on the guide plate 19 and along the current plate 18C, and a part of the liquid A to be processed rebounds on the current plate 18C. Further, a part of the liquid A to be treated that flows along the current plate 18B and rebounds at the current plate 18C cannot flow beyond the current plate 18A, and on the guide plate 19 and the current plate 18C. It flows between the current transformer plates 18B.
In other words, the supply unit 17 disperses the liquid A to be processed flowing down from the bottom of the substantially trapezoidal guide plate 19 so that the flow rate of the liquid A to be processed is almost uniform at any part of the base, and the liquid to be processed toward the wall surface 14. A is discharged, and the liquid A to be treated is dropped onto the wall surface.
For example, in the case where the supply liquid 17 is not installed and the front end of the processing liquid introduction pipe 11 is bent 90 ° downward to discharge the processing liquid A to the wall surface 14, the area substantially the same as the introduction pipe opening 11 A. Thus, since the liquid A to be treated collides with the wall surface 14, the flow rate per hole 15 in the portion of the wall 14 where the liquid A falls falls, and fiber removal or sludge concentration of the liquid A cannot be performed. At the same time, there is a possibility that the sludge or moisture W cannot be properly discharged from the holes 15. However, since the supply unit 17 changes the flow of the liquid A to be processed by the current transformation plate 18 and disperses the liquid A to be processed on the guide plate 19, the introduction pipe opening 11 </ b> A that is the opening of the liquid to be processed introduction 11. The liquid A to be treated can collide with the wall surface 14 in a significantly wider area. Accordingly, the flow rate of the liquid A to be processed per one of the plurality of regularly arranged holes 15 can be reduced and the flow rate to each of the holes 15 can be made uniform. Moisture W can be appropriately discharged from the holes 15.
Further, the liquid to be processed A that has flowed on the guide plate 19 and along the current changing plate 18B, that is, the liquid to be processed A that has changed its flow in the direction opposite to the direction (A) and downward, is in the liquid to be processed introducing portion α. It is designed to drop in the vicinity of the connection location between the blocking plate 20B and the wall surface 14. Therefore, since the sludge or the water W of the liquid A to be treated can be discharged from the endmost portion of the body portion 10 in which the holes 15 are formed, the effective length of the body portion 10 can be fully utilized.

なお、ドラムスクリーン装置１００では、胴部１０を回転自在に支持する支持体１２（１２ａ、１２ｂ）を、胴部１０の両側に配置したが、強度上の問題がなければ、支持体１２を片側のみに設け、胴部１０を片持ちで支持しても良い。
（変形例）
本発明の変形例であるドラムスクリーン装置１０１について、図４を参照して説明する。ここでは、上述した図１のドラムスクリーン装置１００との相違点を中心に述べ、同様の部分についてはその説明を省略する。
図４のドラムスクリーン装置１０１は、図１の支持体１２ｂに代わり、胴部１０の他端側に、胴部１０を下方から回転自在に支持する支持体３０を配置している。支持体３０は、胴部１０の中心軸１０Ａと平行な軸を中心として回転するころ（ローラ部材）である。
図４では、駆動手段１３は支持体１２ａを回転させる構成としているが、駆動手段１３は支持体３０を回転させてもよい。
支持体３０は、閉塞板２０Ａと塊状物排出口２２との間に設置されるため、塊状物排出口２２から塊状物Ｓが排出される際に、塊状物Ｓが支持体３０に接触することがなく、支持体３０の腐食又は回転障害などのトラブルの発生を抑えることができる。なお、胴部１０の両端を複数の支持体３０のみで支持する構成としてもよい。 In the drum screen device 100, the support bodies 12 (12a, 12b) for rotatably supporting the body portion 10 are arranged on both sides of the body portion 10. It is also possible to provide the body portion 10 only in a cantilever manner.
(Modification)
A drum screen device 101 which is a modification of the present invention will be described with reference to FIG. Here, the difference from the above-described drum screen device 100 of FIG. 1 will be mainly described, and the description of the same parts will be omitted.
In the drum screen device 101 of FIG. 4, instead of the support body 12 b of FIG. 1, a support body 30 that rotatably supports the body section 10 from below is disposed on the other end side of the body section 10. The support 30 is a roller (roller member) that rotates about an axis parallel to the central axis 10 </ b> A of the body 10.
In FIG. 4, the driving means 13 is configured to rotate the support 12 a, but the driving means 13 may rotate the support 30.
Since the support 30 is installed between the closing plate 20A and the block discharge port 22, the block S comes into contact with the support 30 when the block S is discharged from the block discharge port 22. The occurrence of troubles such as corrosion of the support 30 or rotation failure can be suppressed. In addition, it is good also as a structure which supports the both ends of the trunk | drum 10 only with the some support body 30. FIG.

ドラムスクリーン装置１０１は、第２排出管２３に設置された流量センサ４１と、被処理液導入管１１に設置された流量調整手段４２と、流量センサ４１の検出信号を受信し、当該検出信号に応じて流量調整手段４２及び駆動手段１３を制御する制御装置４０を有する。
流量センサ４１は、第２排出管２３に排出された汚泥や水分の流量を検出し、当該流量に対応する検出信号を発信する。
流量調整手段４２は、例えば電動弁やポンプである。制御装置４０は、流量調整手段４２を制御して、被処理液Ａの供給量を増加または減少させることができる。
制御装置４０は、電動モータ等の駆動手段１３を制御して、胴部１０の回転速度（単位時間当たりの回転数）を増加または減少させることができる。
また、図４には、流量調整手段４２より下流かつ胴部１０の上流において、被処理液導入管１１に設置された添加装置５０が図示されている。添加装置５０は、被処理液導入管１１を介して被処理液Ａ中に凝集剤Ｇを連続的に注入する装置である。従って、ドラムスクリーン装置１０１を繊維除去装置として使用する場合、添加装置５０は不要である。すなわち、添加装置５０は、ドラムスクリーン装置１０１を汚泥濃縮装置として使用する場合に設置される。 The drum screen device 101 receives the flow rate sensor 41 installed in the second discharge pipe 23, the flow rate adjustment means 42 installed in the liquid to be treated introduction pipe 11, and the detection signal of the flow rate sensor 41, and outputs the detected signal to the detection signal. Accordingly, a control device 40 for controlling the flow rate adjusting means 42 and the driving means 13 is provided.
The flow sensor 41 detects the flow rate of sludge and moisture discharged to the second discharge pipe 23 and transmits a detection signal corresponding to the flow rate.
The flow rate adjusting means 42 is, for example, an electric valve or a pump. The control device 40 can control the flow rate adjusting means 42 to increase or decrease the supply amount of the liquid A to be processed.
The control device 40 can control the driving means 13 such as an electric motor to increase or decrease the rotation speed (the number of rotations per unit time) of the body portion 10.
Further, FIG. 4 shows an addition device 50 installed in the liquid to be treated introduction pipe 11 downstream of the flow rate adjusting means 42 and upstream of the body portion 10. The addition device 50 is a device that continuously injects the flocculant G into the liquid A to be processed via the liquid inlet 11 for liquid to be processed. Therefore, when the drum screen device 101 is used as a fiber removing device, the adding device 50 is unnecessary. That is, the adding device 50 is installed when the drum screen device 101 is used as a sludge concentrating device.

では、図４の制御装置４０によるドラムスクリーン装置１０１の制御につき、ドラムスクリーン装置１０１を繊維除去装置として使用する場合と汚泥濃縮装置として使用する場合に分けて、説明する。
まず、ドラムスクリーン装置１０１を繊維除去装置として使用する場合について説明する。上述のとおり、この場合、図４の添加装置５０は設置されない。
作業員が、例えば電源スイッチを入れることで、ドラムスクリーン装置１０１を起動すると、制御装置４０は、駆動手段１３を制御して胴部１０を所定の回転速度で一定方向へ回転させるとともに、流量調整手段４２を制御して、所定の流量で被処理液Ａを被処理液導入管１１に流す。これにより、被処理液導入部αに配置された供給部１７から、被処理液Ａが胴部１０の内部へ供給される。
被処理液Ａは、被処理液導入部αから塊状物排出部γへ向かって流れてゆくが、その過程で、分離液排出部βにおいて被処理液Ａの大部分の汚泥（例えば、９５％以上の汚泥）が排出され、実質的に被処理液Ａに含まれる繊維のみが塊状物Ｓとして塊状物排出部γから排出される。
ただし、被処理液Ａの性状によっては、上記所定の流量、上記所定の回転速度では、塊状物排出部γから多量の汚泥が排出され、流量センサ４１の検出値が所定値より大きくなる場合がありうる。この場合は、被処理液導入管１１から必要以上の被処理液Ａが供給されているか又は回転速度が遅すぎるので、制御装置４０は、流量調整手段４２を制御して被処理液Ａの供給量を減少させ、または、胴部１０の回転速度を増加させる。
この際、制御装置４０は、被処理液Ａに含まれる繊維が胴部１０の長さ方向に円柱状（ロール状）に成長する回転速度の範囲で、適宜、回転速度を制御する。例えば、回転速度を線速度0.1ｍ/ｓ以上とするとよい。上記所定の回転速度も、当該範囲内である。
供給部１７が、回転する壁面１４のうち上方に向かって移動する壁面に向かって被処理液Ａを落下させ、かつ、胴部１０の回転速度を適切に設定することで、被処理液Ａに含まれる繊維を円柱状（ロール状）に成長させることができる。なお、回転する壁面１４のうち下方に向かって移動する壁面に向かって被処理液Ａを落下させた場合には、被処理液Ａに含まれる繊維をロール状に成長させることができない。
胴部１０の回転に伴い、ロール状の繊維が孔１５に絡まった繊維を絡め取って成長（巨大化）する。従って、ドラムスクリーン装置１０１の運転中、壁面１４の孔１５に目詰まりが発生することを防止できる。よって、胴部１０の自己洗浄（セルフクリーニング）がなされるので、ドラムスクリーン装置１０１の清掃作業を長期間定常的に行う必要がない。すなわち、ドラムスクリーン装置１０１はメンテナンスフリーであり、さらに製造コストやメンテナンスコストの観点で優れた装置といえる。 The control of the drum screen device 101 by the control device 40 of FIG. 4 will be described separately for the case where the drum screen device 101 is used as a fiber removing device and the case where it is used as a sludge concentrating device.
First, a case where the drum screen device 101 is used as a fiber removing device will be described. As described above, in this case, the addition device 50 of FIG. 4 is not installed.
When the worker activates the drum screen device 101 by, for example, turning on a power switch, the control device 40 controls the driving means 13 to rotate the body 10 in a predetermined direction at a predetermined rotational speed and adjust the flow rate. By controlling the means 42, the liquid A to be processed flows through the liquid inlet pipe 11 to be processed at a predetermined flow rate. As a result, the liquid to be processed A is supplied into the body 10 from the supply unit 17 disposed in the liquid to be processed introduction part α.
The liquid to be treated A flows from the liquid to be treated introduction portion α toward the lump discharge portion γ, and in the process, most of the sludge (for example, 95%) of the liquid to be treated A in the separation liquid discharge portion β. The above sludge) is discharged, and only the fibers substantially contained in the liquid to be treated A are discharged as the lump S from the lump discharge unit γ.
However, depending on the properties of the liquid A to be treated, a large amount of sludge is discharged from the lump discharge unit γ at the predetermined flow rate and the predetermined rotation speed, and the detection value of the flow sensor 41 may be larger than the predetermined value. It is possible. In this case, the liquid to be processed A is supplied from the liquid to be processed introducing pipe 11 more than necessary, or the rotational speed is too slow. Therefore, the control device 40 controls the flow rate adjusting means 42 to supply the liquid to be processed A. Decrease the amount or increase the rotational speed of the barrel 10.
At this time, the control device 40 appropriately controls the rotation speed within the range of the rotation speed at which the fibers contained in the liquid A to be processed grow in a columnar shape (roll shape) in the length direction of the body portion 10. For example, the rotation speed may be set to a linear speed of 0.1 m / s or more. The predetermined rotation speed is also within the range.
The supply unit 17 drops the liquid A to be processed toward the wall surface that moves upward among the rotating wall surfaces 14, and sets the rotation speed of the body portion 10 appropriately, so that the liquid A is processed. The contained fibers can be grown in a columnar shape (roll shape). In addition, when the to-be-processed liquid A is dropped toward the wall surface which moves below among the rotating wall surfaces 14, the fiber contained in the to-be-processed liquid A cannot be grown in roll shape.
Along with the rotation of the body portion 10, the roll-like fibers entangle and grow (enlarge) the fibers entangled with the holes 15. Therefore, it is possible to prevent clogging in the hole 15 of the wall surface 14 during operation of the drum screen device 101. Therefore, since the body 10 is self-cleaned (self-cleaning), it is not necessary to perform the cleaning operation of the drum screen device 101 regularly for a long period of time. That is, the drum screen device 101 is maintenance-free, and can be said to be an excellent device in terms of manufacturing cost and maintenance cost.

次に、ドラムスクリーン装置１０１を汚泥濃縮装置として使用する場合について説明する。
上述のとおり、この場合、図４の添加装置５０が設置され、被処理液Ａに凝集剤Ｇが注入される。
作業員が、例えば電源スイッチを入れることで、ドラムスクリーン装置１０１を起動すると、制御装置４０は、駆動手段１３を制御して胴部１０を所定の回転速度で一定方向へ回転させるとともに、流量調整手段４２を制御して、所定の流量で被処理液Ａを被処理液導入管１１に流す。また、作業員がドラムスクリーン装置１０１を起動すると、添加装置５０が起動し、被処理液導入管１１を流れる被処理液Ａに凝集剤Ｇが混入される。これにより、被処理液導入部αに配置された供給部１７から、凝集剤Ｇにより汚泥フロックが大径化した凝集汚泥、すなわち凝集剤Ｇが混入した被処理液Ａが胴部１０の内部へ供給される。
被処理液Ａは、被処理液導入部αから塊状物排出部γへ向かって流れてゆくが、その過程で、分離液排出部βにおいて被処理液Ａの水分が排出され、塊状物Ｓとして濃縮した凝集汚泥Ｓが塊状物排出部γから排出される。
ただし、被処理液Ａの性状によっては、上記所定の流量、上記所定の回転速度では、塊状物排出部γから設定以上の多量の水分が排出され、流量センサ４１の検出値が所定値より大きくなる場合がありうる。この場合は、被処理液導入管１１から必要以上の被処理液Ａが供給されているか又は回転速度が遅すぎるので、制御装置４０は、流量調整手段４２を制御して被処理液Ａの供給量を減少させ、または、胴部１０の回転速度を増加させる。
なお、ドラムスクリーン装置１０１を汚泥濃縮装置として使用する場合は、繊維除去装置として使用する場合と異なり、制御装置４０は、被処理液Ａが円柱状（ロール状）に成長しない回転速度の範囲で制御する。上記所定の回転速度も、当該範囲内である。汚泥濃縮の場合は、汚泥フロックが大径化した被処理液Ａの胴部１０への接触面積が大きい方が、効果的に処理を行うことができるからである。 Next, the case where the drum screen apparatus 101 is used as a sludge concentration apparatus will be described.
As described above, in this case, the addition device 50 of FIG. 4 is installed, and the flocculant G is injected into the liquid A to be processed.
When the worker activates the drum screen device 101 by, for example, turning on a power switch, the control device 40 controls the driving means 13 to rotate the body 10 in a predetermined direction at a predetermined rotational speed and adjust the flow rate. By controlling the means 42, the liquid A to be processed flows through the liquid inlet pipe 11 to be processed at a predetermined flow rate. When the worker activates the drum screen device 101, the addition device 50 is activated, and the flocculant G is mixed into the liquid to be treated A flowing through the liquid to be treated introduction pipe 11. As a result, the flocculent sludge in which the sludge floc has been enlarged by the flocculant G, that is, the liquid to be treated A mixed with the flocculant G is fed into the body portion 10 from the supply unit 17 arranged in the liquid to be treated introduced α. Supplied.
The liquid to be treated A flows from the liquid to be treated introduction part α toward the lump discharge part γ, but in the process, the water of the liquid A to be treated is discharged at the separation liquid discharge part β as a lump S. The concentrated agglomerated sludge S is discharged from the lump discharge part γ.
However, depending on the properties of the liquid A to be treated, at the predetermined flow rate and the predetermined rotation speed, a large amount of water more than the set amount is discharged from the lump discharge unit γ, and the detection value of the flow sensor 41 is larger than the predetermined value. It can be. In this case, the liquid to be processed A is supplied from the liquid to be processed introducing pipe 11 more than necessary, or the rotational speed is too slow. Therefore, the control device 40 controls the flow rate adjusting means 42 to supply the liquid to be processed A. Decrease the amount or increase the rotational speed of the barrel 10.
In addition, when using the drum screen apparatus 101 as a sludge concentration apparatus, unlike the case where it uses as a fiber removal apparatus, the control apparatus 40 is in the range of the rotational speed which the to-be-processed liquid A does not grow in a column shape (roll shape). Control. The predetermined rotation speed is also within the range. This is because, in the case of sludge concentration, the larger the contact area of the liquid A to be treated with the sludge floc having a larger diameter on the body portion 10, the more effective the treatment.

以上のように、本発明の実施形態及び変形例のドラムスクリーン装置１００、１０１は、供給部１７によって、孔１５が形成された胴部１０の最も端の部分から被処理液Ａの汚泥もしくは水分Ｗを排出できる。従って、胴部１０の有効長を最大限に活用することが可能となる。
また、被処理液Ａを供給部１７で分散してから胴部１０の壁面１４へ被処理液Ａを落下させるので、各孔１５に対する被処理液Ａの流量を緩和し、被処理液Ａを適切に処理することができる。 As described above, in the drum screen devices 100 and 101 according to the embodiment and the modification of the present invention, the sludge or moisture of the liquid A to be processed is supplied from the most end portion of the body portion 10 in which the holes 15 are formed by the supply unit 17. W can be discharged. Therefore, the effective length of the trunk portion 10 can be utilized to the maximum extent.
Further, since the liquid A to be processed is dropped by the supply unit 17 and then dropped onto the wall surface 14 of the body portion 10, the flow rate of the liquid A to be processed with respect to each hole 15 is reduced, and the liquid A to be processed is discharged. Can be handled appropriately.

なお、ドラムスクリーン装置１０１では、制御装置４０が被処理液Ａの供給量及び胴部１０の回転速度を制御できるようにしたが、制御装置４０を設置せず、流量センサ４１で得た検出値に基づき、作業員が手動で流量調整手段４２を操作して被処理液Ａの供給量を変更し、または作業員が手動で駆動手段１３を操作して胴部１０の回転速度を変更しても良い。また、流量センサ４１としては、例えば電磁式、超音波式など種々のセンサを使用することができる。また、ドラムスクリーン装置１０１では、被処理液導入管１１の道中に添加装置５０を設けているが、流量調整手段４２の前段の別途反応槽（図示無し）で汚泥フロックを大径化する凝集操作を行っても良い。   In the drum screen device 101, the control device 40 can control the supply amount of the liquid A to be processed and the rotational speed of the body portion 10, but the detection value obtained by the flow rate sensor 41 without installing the control device 40. Based on the above, the operator manually operates the flow rate adjusting means 42 to change the supply amount of the liquid A to be processed, or the operator manually operates the driving means 13 to change the rotation speed of the body 10. Also good. Moreover, as the flow sensor 41, various sensors, such as an electromagnetic type and an ultrasonic type, can be used, for example. In addition, in the drum screen device 101, the addition device 50 is provided in the path of the liquid to be treated introduction tube 11, but a coagulation operation for increasing the diameter of the sludge floc in a separate reaction tank (not shown) in front of the flow rate adjusting means 42. May be performed.

以上、本発明の実施形態および変形例について図面を参照して詳述したが、具体的な構成はこれらに限られるものではなく、本発明の要旨を逸脱しない範囲の設計変更等も含まれる。 As mentioned above, although embodiment and the modification of this invention were explained in full detail with reference to drawings, the concrete structure is not restricted to these, The design change etc. of the range which does not deviate from the summary of this invention are included.

１０ 胴部
１０Ａ 中心軸
１１ 被処理液導入管
１１Ａ 導入管開口部
１２ａ、１２ｂ 支持体
１３ 駆動手段
１４ 壁面
１５ 孔
１６ 第１排出管
１７ 供給部
１８Ａ、１８Ｂ、１８Ｃ 変流板
１９ 案内板
２０Ａ、２０Ｂ 閉塞版
２２ 塊状物排出口
２３ 第２排出管
３０ 支持体（ローラ部材（ころ））
４０ 制御装置
４１ 流量センサ
４２ 流量調整手段
５０ 添加装置
１００ パンチングメタルドラムスクリーン装置
１０１ パンチングメタルドラムスクリーン装置
Ａ 被処理液
Ｇ 凝集剤
Ｓ 塊状物
Ｗ 汚泥もしくは水分 DESCRIPTION OF SYMBOLS 10 trunk | drum 10A central axis 11 to-be-processed liquid introduction pipe 11A introduction pipe opening part 12a, 12b support body 13 drive means 14 wall surface 15 hole 16 1st discharge pipe 17 supply part 18A, 18B, 18C current transformation plate 19 guide plate 20A, 20B Closed plate 22 Mass discharge port 23 Second discharge pipe 30 Support (roller member (roller))
DESCRIPTION OF SYMBOLS 40 Control apparatus 41 Flow rate sensor 42 Flow rate adjustment means 50 Addition apparatus 100 Punching metal drum screen apparatus 101 Punching metal drum screen apparatus A Liquid to be processed G Flocculant S Lump W Sludge or moisture

Claims (4)

中心軸が略水平方向に配置され且つ壁面がパンチングメタルで形成された円筒形の胴部と、
前記中心軸の近傍を除き前記胴部の一端側を閉塞する第一閉塞板と、
前記中心軸上に配置され、前記第一閉塞板を介して被処理液を供給する被処理液導入管と、
前記被処理液導入管に接続され、前記被処理液を受ける供給部と、
前記胴部の他端側を閉塞する第二閉塞板と、
前記中心軸を中心として前記胴部を回転可能に支持する支持体と、
前記胴部を回転させる駆動手段と、を有し、
前記第二閉塞板の近傍を除き前記壁面には複数の孔が形成され、
前記第二閉塞板の近傍の前記壁面には前記孔より大きな複数の塊状物排出口が形成され、
前記供給部は、略台形の案内板と前記略台形の底辺を除く辺に接続した変流板とを備え、前記変流板で前記被処理液の流れを前記胴部の径方向外方に変えるとともに、前記被処理液を前記案内板の上で分散し、前記第一閉塞板の近傍を少なくとも含む前記壁面に、前記底辺から前記分散した被処理液を落下させることを特徴とするパンチングメタルドラムスクリーン装置。 A cylindrical body having a central axis disposed in a substantially horizontal direction and a wall surface formed of a punching metal;
A first closing plate for closing one end side of the body portion except the vicinity of the central axis;
A liquid to be treated introduction pipe disposed on the central axis and supplying a liquid to be treated via the first closing plate;
A supply unit connected to the liquid to be treated introducing pipe and receiving the liquid to be treated;
A second closing plate for closing the other end side of the body portion;
A support that rotatably supports the body portion around the central axis;
Driving means for rotating the body,
Except for the vicinity of the second closing plate, a plurality of holes are formed in the wall surface,
A plurality of lump discharge ports larger than the holes are formed on the wall surface in the vicinity of the second closing plate,
The supply unit includes a substantially trapezoidal guide plate and a current transformation plate connected to a side excluding the bottom of the substantially trapezoidal shape, and the flow of the liquid to be processed is made radially outward of the barrel by the current transformation plate. The punching metal is characterized in that the treated liquid is dispersed on the guide plate and the dispersed treated liquid is dropped from the bottom onto the wall surface including at least the vicinity of the first closing plate. Drum screen device. 前記被処理液は、繊維を含む汚泥であり、
前記供給部は、前記回転により上方へ移動する前記壁面に前記被処理液を落下させ、
前記駆動手段は、前記胴部の内部で前記繊維をロール状に成長させる回転速度で前記胴部を回転することを特徴とする請求項１に記載のパンチングメタルドラムスクリーン装置。 The liquid to be treated is sludge containing fibers,
The supply unit drops the liquid to be processed onto the wall surface that moves upward by the rotation,
2. The punching metal drum screen device according to claim 1, wherein the driving unit rotates the body at a rotation speed at which the fibers grow in a roll shape inside the body. 3. 前記被処理液は、凝集剤が混入された汚泥であり、
前記駆動手段は、前記胴部の内部で前記被処理液をロール状に成長させない回転速度で前記胴部を回転することを特徴とする請求項１に記載のパンチングメタルドラムスクリーン装置。 The liquid to be treated is sludge mixed with a flocculant,
2. The punching metal drum screen device according to claim 1, wherein the driving unit rotates the body portion at a rotation speed that does not allow the liquid to be processed to grow in a roll shape inside the body portion. 前記塊状物排出口に通じる排出管に設けられて、前記塊状物排出口を通じて排出された前記被処理液の汚泥もしくは水分流量を検出する流量センサと、
前記被処理液導入管に設けられた流量調整手段と、
前記流量センサの検出値が所定値より大きい場合には、前記流量調整手段を制御して前記被処理液の供給量を減少させ、または前記駆動手段を制御して前記胴部の回転速度を増加させる制御装置と、
をさらに有することを特徴とする請求項１〜３のいずれか1項に記載のパンチングメタルドラムスクリーン装置。 A flow rate sensor that is provided in a discharge pipe that communicates with the lump discharge port and detects a sludge or moisture flow rate of the liquid to be treated discharged through the lump discharge port;
A flow rate adjusting means provided in the liquid inlet pipe to be treated;
When the detection value of the flow sensor is larger than a predetermined value, the flow rate adjusting means is controlled to decrease the supply amount of the liquid to be processed, or the driving means is controlled to increase the rotational speed of the body portion. A control device,
The punching metal drum screen device according to any one of claims 1 to 3, further comprising:
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PCT/JP2019/020467 WO2019225700A1 (en) 2018-05-25 2019-05-23 Punched metal drum screening device
KR1020207029846A KR102534339B1 (en) 2018-05-25 2019-05-23 Punching Metal Drum Screen Device
CN201980025833.4A CN112105433B (en) 2018-05-25 2019-05-23 Punching metal plate drum screen device
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