JP4611480B2 - Screen removal device - Google Patents

Screen removal device Download PDF

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Publication number
JP4611480B2
JP4611480B2 JP2000032556A JP2000032556A JP4611480B2 JP 4611480 B2 JP4611480 B2 JP 4611480B2 JP 2000032556 A JP2000032556 A JP 2000032556A JP 2000032556 A JP2000032556 A JP 2000032556A JP 4611480 B2 JP4611480 B2 JP 4611480B2
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Japan
Prior art keywords
residue
hopper
debris
water
screw
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JP2000032556A
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Japanese (ja)
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JP2001219197A (en
Inventor
賢司 中東
和昌 笠倉
史一 惣名
泰正 近藤
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Suido Kiko Kaisha Ltd
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Suido Kiko Kaisha Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、し渣除去装置に関し、さらに詳しくは、し渣がホッパーの受け口に詰まること及びし渣が脱水機のし渣排出口から排出できなくなることを防止できるし渣除去装置に関する。
【0002】
【従来の技術】
図3は、従来公知のし渣除去装置を示す概略構成図である。また、図4は、そのドラムスクリーンの概略断面図である。
このし渣除去装置500は、し渣(野菜屑等の厨芥、糞塊、紙屑など)を含む流入原水Wを導入し流入トラフ1aからドラムスクリーン2の内部に落下させる原水導入管1と、ウェッジワイヤーを円筒方向に配置したドラムであって流入原水Wの落下方向と反対方向にドラムモータ2aにより回転させられろ過水Fとし渣Sとを分別するドラムスクリーン2と、そのドラムスクリーン2の外周面に洗浄水Cを噴射するドラム洗浄ノズル3と、前記ドラムスクリーン2から落下してきたろ過水Fを受けるろ過水槽4と、前記ドラムスクリーン2のし渣排出ガイド2bによりドラムスクリーン2の内部から排出され落下してきたし渣Sを受け取るホッパ5と、そのホッパ5から落下してきたし渣Sを脱水モータ6aにより回転するスクリュー6bで口径の小さいし渣排出口6cへと重力に抗して押してその圧搾により脱水する脱水機6と、し渣Sから脱水された水を受け取る脱水ドレン受け7と、前記し渣排出口6cから排出され落下してきた脱水後のし渣S’を収容するし渣受けかご8と、前記ドラムモータ2aおよび前記脱水モータ6aの回転を制御する制御装置50とを具備している。
【0003】
【発明が解決しようとする課題】
流入原水Wに含まれるし渣の量は一定ではなく、時間的変動がある。つまり、し渣を多く含んだ流入原水Wが流入する期間もあれば、し渣をほとんど含まない流入原水Wが流入する期間もある。
【0004】
し渣を多く含んだ流入原水Wが流入する期間が続くと、上記従来のし渣除去装置500では、ドラムスクリーン2からし渣がホッパー5の受け口に大量に落下し続けるため、ホッパー5の受け口でブリッジを起こし、詰まってしまうことがある問題点があった。
【0005】
また逆に、し渣をほとんど含まない流入原水Wが流入する期間が続くと、上記従来のし渣除去装置500では、先に導入されたし渣Sをスクリュー6bの回転で押し出すべき後続のし渣Sが供給されないため、先に導入されたし渣Sがし渣排出口6cの手前に留まり、スクリュー6bの回転で繰り返し剪断を受けてペースト状となり、これが潤滑剤の役目を果たし、その後に新たなし渣Sが供給されても、滑りを起こして重力に抗して進むことができず、し渣排出口6cからし渣Sを排出できなくなることがある問題点があった。
【0006】
そこで、本発明の第1の目的は、し渣がホッパーの受け口に詰まることを防止できるし渣除去装置を提供することにある。
また、本発明の第2の目的は、し渣が脱水機のし渣排出口から排出できなくなることを防止できるし渣除去装置を提供することにある。
【0007】
【課題を解決するための手段】
第1の観点では、本発明は、し渣を含む流入原水をろ過水とし渣とに分別するドラムスクリーンと、そのドラムスクリーンから排出され落下してきたし渣を受け取るホッパと、そのホッパから落下してきたし渣をし渣排出口へとスクリューで重力に抗して押してその圧搾により脱水する脱水機とを備えたし渣除去装置であって、前記ホッパに水を噴射するホッパ洗浄ノズルを設けたことを特徴とするし渣除去装置を提供する。
上記第1の観点によるし渣除去装置では、ホッパ洗浄ノズルからホッパに水を噴射するため、ホッパーの受け口に引っ掛ったし渣も直ちに流し落とされ、ブリッジを起こさなくなる。よって、し渣を多く含んだ流入原水が流入する期間が続いても、し渣がホッパーの受け口に詰まらなくなる。また、脱水機内部に滞留しているし渣が、ホッパに噴射した水で洗浄されるので、脱水されるし渣を清浄なものとすることが出来る。
【0008】
第2の観点では、本発明は、上記第1の観点のし渣除去装置において、前記水の噴射を間欠的に行わせる制御手段を設けたことを特徴とするし渣除去装置を提供する。
上記第2の観点によるし渣除去装置では、ホッパ洗浄ノズルからホッパの受け口に水を噴射することを間欠的に行うため、洗浄水を節約できる。
【0009】
第3の観点では、本発明は、し渣を含む流入原水をろ過水とし渣とに分別するドラムスクリーンと、そのドラムスクリーンから排出され落下してきたし渣を受け取るホッパと、そのホッパから落下してきたし渣をし渣排出口へとスクリューで重力に抗して押してその圧搾により脱水する脱水機とを備えたし渣除去装置であって、前記スクリューを間欠的に回転させる制御手段を設けたことを特徴とするし渣除去装置を提供する。
上記第3の観点によるし渣除去装置では、脱水機のスクリューを間欠的に回転させるため、し渣排出口の手前にし渣が留まっても、スクリューの回転で剪断を受ける時間が減り、ペースト状になり難くなる、よって、新たなし渣が供給された時に滑りを起こすことがなくなり、し渣排出口からし渣を好適に排出できるようになる。
【0010】
第4の観点では、本発明は、し渣を含む流入原水をろ過水とし渣とに分別するドラムスクリーンと、そのドラムスクリーンから排出され落下してきたし渣を受け取るホッパと、そのホッパから落下してきたし渣をし渣排出口へとスクリューで重力に抗して押してその圧搾により脱水する脱水機とを備えたし渣除去装置であって、前記ホッパに水を噴射するホッパ洗浄ノズルと、前記水の噴射を間欠的に行わせると共に前記スクリューを間欠的に回転させる制御手段とを設けたことを特徴とするし渣除去装置を提供する。
上記第4の観点によるし渣除去装置では、ホッパ洗浄ノズルからホッパの受け口に水を噴射するため、ホッパーの受け口に引っ掛ったし渣も直ちに流し落とされ、ブリッジを起こさなくなる。よって、し渣を多く含んだ流入原水が流入する期間が続いても、し渣がホッパーの受け口に詰まらなくなる。そして、ホッパ洗浄ノズルからホッパの受け口に水を噴射することを間欠的に行うため、洗浄水を節約できる。さらに、脱水機のスクリューを間欠的に回転させるため、し渣排出口の手前にし渣が留まっても、スクリューの回転で剪断を受ける時間が減り、ペースト状になり難くなる、よって、新たなし渣が供給された時に滑りを起こすことがなくなり、し渣排出口からし渣を好適に排出できるようになる。また、脱水機内部に滞留しているし渣が、ホッパに噴射した水で洗浄されるので、脱水されるし渣を清浄なものとすることが出来る。
【0011】
【発明の実施の形態】
以下、図を参照して本発明の実施の形態を説明する。なお、これにより本発明が限定されるものではない。
図1は、本発明の一実施形態に係るし渣除去装置を示す概略断面図である。
このし渣除去装置100は、し渣を含む流入原水Wを導入し流入トラフ1aからドラムスクリーン2の内部に落下させる原水導入管1と、ウェッジワイヤーを円筒方向に配置したドラムであって流入原水Wの落下方向と反対方向にドラムモータ2aにより回転させられろ過水Fとし渣Sとを分別するドラムスクリーン2と、そのドラムスクリーン2の外周面に洗浄水Cを噴射するドラム洗浄ノズル3と、前記ドラムスクリーン2から落下してきたろ過水Fを受けるろ過水槽4と、前記ドラムスクリーン2のし渣排出ガイド2bによりドラムスクリーン2の内部から排出され落下してきたし渣Sを受け取るホッパ5と、そのホッパ5から落下してきたし渣Sを脱水モータ6aにより回転するスクリュー6bで口径の小さいし渣排出口6cへと重力に抗して押してその圧搾により脱水する脱水機6と、し渣Sから脱水された水を受け取る脱水ドレン受け7と、前記し渣排出口6cから排出され落下してきた脱水後のし渣S’を収容するし渣受けかご8と、前記ホッパ5の受け口の傾斜面に向けて洗浄水Cを噴射すると共に洗浄水Cの一部を脱水機6の内部へ噴射するためのホッパ洗浄ノズル10およびホッパ洗浄バルブ10aと、前記ドラムモータ2aおよび前記脱水モータ6aの回転並びに前記ホッパ洗浄バルブ10aの開閉を制御する制御装置20とを具備して構成されている。
【0012】
図2の(a)(b)は、前記制御装置20による前記ホッパ洗浄バルブ10aの開閉制御および前記脱水モータ6aの回転制御を示すタイムチャートの例示図である。
図2の(a)では、前記ホッパ洗浄バルブ10aは、例えば10分間の“閉”状態と30秒間の“開”状態を交互に反復される。
また、前記脱水モータ6aは、例えば10分間の“休止”状態と30秒間の“運転”状態を交互に反復される。
ここで、まず前記ホッパ洗浄バルブ10aを“開”状態とし、し渣Sがホッパ5から脱水機6のスクリュ−6bにからまる位置まで洗浄水で流し落とす。次いで、前記し渣S中に含まれる洗浄水が前記脱水ドレン受7に流出した後、前記脱水モータ6aを“運転”する、つまり、脱水機6を運転する、のが好ましい。
図2の(b)では、前記ホッパ洗浄バルブ10aは、例えば3分間の“閉”状態と30秒間の“開”状態を交互に反復される。
また、前記脱水モータ6aは、例えば10分間の“休止”状態と30秒間の“運転”状態を交互に反復される。
ここでは、脱水機6の内部に滞留しているし渣Sが、ホッパ5に噴射した洗浄水で繰り返し洗浄され、その後で脱水されるため、排出されるし渣S’を、より清浄なものとすることが出来る。
なお、流入原水Wの導入および前記ドラムモータ2aの回転は連続で行う。また、ドラム洗浄ノズル3からの洗浄水Cの噴射は、連続でもよいし、間欠的でもよい。ドラム洗浄ノズル3からの洗浄水Cの噴射を間欠的とする場合、そのための独立のバルブを設けてもよいし、ホッパ洗浄バルブ10aで兼用させてもよい。
【0013】
(実施例)
流入原水Wは、前段で沈殿池および荒目スクリーンを通した家庭雑廃水で、BOD200mg/l,濁質成分200mg/lである。
ドラムスクリーン2から排出されるし渣Sは、その成分が厨芥98%,毛髪0.4%,紙類1.5%,プラスチック類0.1%であり、含水率は92〜95%であった。
前記ホッパ洗浄バルブ10aは、10分間の“閉”状態と30秒間の“開”状態を交互に反復し、それと若干タイミングをずらして、前記脱水モータ6aを、10分間の“休止”状態と30秒間の“運転”状態を交互に反復させた。
脱水機6のし渣排出口6cから排出されるし渣S’の含水率は75〜85%であった。
3ヶ月間連続稼働させたが、し渣Sがホッパー5の受け口に詰まることはなかった。また、し渣S’が脱水機6のし渣排出口6cから排出できなくなることもなかった。
【0014】
【発明の効果】
本発明のし渣除去装置によれば、し渣を多く含んだ流入原水が流入する期間が続いた場合にホッパーの受け口にし渣が詰まってしまうことを防止できる。また、し渣をほとんど含まない流入原水が流入する期間が続いた場合にし渣が脱水機のし渣排出口から排出できなくなることを防止できる。
【図面の簡単な説明】
【図1】本発明の一実施形態に係るし渣除去装置を示す概略構成図である。
【図2】本発明の一実施形態に係るし渣除去装置におけるホッパ洗浄バルブの開閉制御と脱水モータの回転制御を示すタイムチャートである。
【図3】従来のし渣除去装置の一例を示す概略構成図である。
【図4】ドラムスクリーンの概略断面図である。
【符号の説明】
1 原水導入管
1a 流入トラフ
2 ドラムスクリーン
2a ドラムモータ
2b し渣排出ガイド
3 ドラム洗浄ノズル
4 ろ過水槽
5 ホッパー
6 脱水機
6a 脱水モータ
6b スクリュー
6c し渣排出口
7 脱水ドレン受け
8 し渣受けかご
10 ホッパ洗浄ノズル
10a ホッパ洗浄バルブ
20 制御装置
100 し渣除去装置
C 洗浄水
F ろ過水
S し渣(脱水前)
S’ し渣(脱水後
W 流入原水
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a residue removing device, and more particularly, to a residue removing device that can prevent residue from becoming clogged in a receiving port of a hopper and preventing residue from being discharged from a residue discharge port of a dehydrator.
[0002]
[Prior art]
FIG. 3 is a schematic configuration diagram showing a conventionally known residue removing device. FIG. 4 is a schematic sectional view of the drum screen.
This debris removing device 500 includes a raw water introduction pipe 1 that introduces inflow raw water W including debris (such as scum of vegetable waste, feces, paper waste, etc.) and drops it from the inflow trough 1a to the inside of the drum screen 2, and a wedge. A drum having a wire arranged in a cylindrical direction, rotated by a drum motor 2a in a direction opposite to the falling direction of the inflowing raw water W, and separating the residue S from the filtered water F, and the outer peripheral surface of the drum screen 2 Are discharged from the drum screen 2 by a drum cleaning nozzle 3 for spraying cleaning water C, a filtered water tank 4 for receiving filtered water F falling from the drum screen 2, and a residue discharging guide 2b of the drum screen 2. A hopper 5 that receives the fallen residue S and a screw 6b that rotates the fallen residue S that has fallen from the hopper 5 by a dehydrating motor 6a. A dehydrator 6 that depresses against gravity and presses it against gravity and presses it against the residue discharge port 6c to dehydrate it, a dewatering drain receiver 7 that receives water dehydrated from the residue S, and a discharge from the residue discharge port 6c. The dewatering residue S 'that has been dropped is accommodated, and the residue receiving basket 8 is provided, and the controller 50 controls the rotation of the drum motor 2a and the dehydration motor 6a.
[0003]
[Problems to be solved by the invention]
The amount of residue contained in the inflowing raw water W is not constant and varies with time. That is, there is a period in which the inflow raw water W containing a large amount of residue is flowing, and there is a period in which the inflow raw water W containing almost no residue is inflow.
[0004]
When the inflow raw water W containing a large amount of debris flows in, the conventional debris removing device 500 continues to drop a large amount of debris from the drum screen 2 into the receiving port of the hopper 5. There was a problem that caused the bridge to become clogged.
[0005]
On the contrary, when the inflow raw water W containing almost no residue remains, the conventional residue removing device 500 continues to introduce the residue S introduced earlier by the rotation of the screw 6b. Since the residue S is not supplied, the residue S introduced earlier stays in front of the residue discharge port 6c, and is repeatedly sheared by the rotation of the screw 6b to become a paste, which serves as a lubricant. Even if new residue S is supplied, there is a problem in that it cannot slide against gravity due to slipping, and the residue S cannot be discharged from the residue discharge port 6c.
[0006]
Accordingly, a first object of the present invention is to provide a residue removing device that can prevent residue from clogging in a receiving port of a hopper.
A second object of the present invention is to provide a residue removing device that can prevent residue from being unable to be discharged from the residue outlet of the dehydrator.
[0007]
[Means for Solving the Problems]
In a first aspect, the present invention provides a drum screen that separates inflow raw water containing slag into filtered water and separates the slag, a hopper that receives the slag discharged from the drum screen and dropped, and dropped from the hopper. A debris removal device comprising a dewatering machine for dewatering by depressurizing the debris by pressing against the gravity with a screw and pushing it against the debris discharge port, and provided with a hopper cleaning nozzle for injecting water into the hopper A debris removing device is provided.
In the debris removal apparatus according to the first aspect, water is sprayed from the hopper cleaning nozzle to the hopper, so that the debris caught in the receiving port of the hopper is immediately washed away and no bridge is caused. Therefore, even if the inflow raw water containing a large amount of debris flows in, the debris will not clog the hopper receptacle. In addition, since the residue remaining in the dehydrator is washed with the water sprayed on the hopper, the residue can be dehydrated and cleaned.
[0008]
According to a second aspect, the present invention provides a residue removing device, characterized in that in the residue removing device according to the first aspect, a control means for intermittently injecting the water is provided.
In the residue removing device according to the second aspect, since the water is intermittently ejected from the hopper cleaning nozzle to the receiving port of the hopper, the cleaning water can be saved.
[0009]
In a third aspect, the present invention provides a drum screen that separates the inflow raw water containing the residue into filtered water, a hopper that receives the residue that has been discharged from the drum screen and dropped, and has dropped from the hopper. A debris removing device comprising a dewatering machine for dewatering by depressurizing the debris by pressing against the gravity with a screw and pushing it against the debris discharge port, and provided with control means for rotating the screw intermittently A debris removing device is provided.
In the residue removal device according to the third aspect, since the screw of the dehydrator is rotated intermittently, even if the residue stays in front of the residue discharge port, the time for shearing by the rotation of the screw is reduced. Therefore, no slipping occurs when a new residue is supplied, and the residue can be suitably discharged from the residue discharge port.
[0010]
In a fourth aspect, the present invention relates to a drum screen that separates inflow raw water including slag into filtered water, a hopper that receives the slag discharged from the drum screen and dropped, and dropped from the hopper. A dewatering device comprising a dewatering device for dewatering by depressurizing and dewatering by pressing against gravity with a screw to a residue discharge port, and a hopper washing nozzle for injecting water into the hopper, A debris removing device is provided, characterized by comprising control means for intermittently injecting water and rotating the screw intermittently.
In the debris removing apparatus according to the fourth aspect, water is jetted from the hopper cleaning nozzle to the hopper receiving port, so that the stag that is caught in the hopper receiving port is immediately washed away and no bridging occurs. Therefore, even if the inflow raw water containing a large amount of debris flows in, the debris will not clog the hopper receptacle. Further, since water is intermittently ejected from the hopper cleaning nozzle to the receiving port of the hopper, cleaning water can be saved. In addition, since the screw of the dehydrator is rotated intermittently, even if the residue stays in front of the residue discharge port, it takes less time to undergo shearing due to the rotation of the screw, making it difficult to form a paste. When this is supplied, slipping does not occur, and the residue can be suitably discharged from the residue discharge port. In addition, since the residue remaining in the dehydrator is washed with the water sprayed on the hopper, the residue can be dehydrated and cleaned.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited thereby.
FIG. 1 is a schematic cross-sectional view showing a residue removing device according to an embodiment of the present invention.
The residue removing device 100 is a drum having a raw water introduction pipe 1 for introducing inflow raw water W containing residue and dropping it from the inflow trough 1a into the drum screen 2 and a wedge wire arranged in a cylindrical direction. A drum screen 2 that is rotated by a drum motor 2a in a direction opposite to the direction in which W falls, and separates residue S from filtered water F; a drum cleaning nozzle 3 that injects cleaning water C onto the outer peripheral surface of the drum screen 2; A filtered water tank 4 that receives the filtrate F that has fallen from the drum screen 2, a hopper 5 that receives the residue S that has been discharged from the interior of the drum screen 2 by the residue discharge guide 2b of the drum screen 2, and its The residue S that has fallen from the hopper 5 is overlapped by the screw 6b rotated by the dehydration motor 6a to the residue discharge port 6c having a small diameter. A dehydrator 6 that depresses against the water and dehydrates by pressing, a dewatering drain receiver 7 that receives dewatered water from the residue S, and a residue S ′ after dewatering that has been discharged from the residue discharge port 6c and dropped. A hopper cleaning nozzle 10 for injecting cleaning water C toward the inclined surface of the receiving port of the hopper 5 and a residue receiving basket 8 and a part of the cleaning water C into the dehydrator 6; The hopper cleaning valve 10a includes a control device 20 that controls the rotation of the drum motor 2a and the dehydrating motor 6a and the opening and closing of the hopper cleaning valve 10a.
[0012]
FIGS. 2A and 2B are time charts illustrating opening / closing control of the hopper cleaning valve 10a and rotation control of the dehydrating motor 6a by the control device 20. FIG.
In FIG. 2A, the hopper cleaning valve 10a is alternately repeated, for example, in a “closed” state for 10 minutes and an “open” state for 30 seconds.
Further, the dehydrating motor 6a is repeatedly repeated, for example, in a “pause” state for 10 minutes and an “operation” state for 30 seconds.
Here, first, the hopper cleaning valve 10a is set in the “open” state, and the residue S is washed away from the hopper 5 to a position where it is entangled with the screw 6b of the dehydrator 6. Next, after the washing water contained in the residue S flows out to the dewatering drain receiver 7, it is preferable to "run" the dewatering motor 6a, that is, to operate the dewatering machine 6.
In FIG. 2B, the hopper cleaning valve 10a is alternately repeated, for example, in a “closed” state for 3 minutes and an “open” state for 30 seconds.
Further, the dehydrating motor 6a is repeatedly repeated, for example, in a “pause” state for 10 minutes and an “operation” state for 30 seconds.
Here, the residue S remaining in the dehydrator 6 is repeatedly washed with the washing water sprayed on the hopper 5 and then dehydrated, so that the discharged residue S ′ is more purified. It can be.
The introduction of the inflow raw water W and the rotation of the drum motor 2a are performed continuously. Further, the spray of the cleaning water C from the drum cleaning nozzle 3 may be continuous or intermittent. When the injection of the cleaning water C from the drum cleaning nozzle 3 is intermittent, an independent valve for that purpose may be provided, or the hopper cleaning valve 10a may also be used.
[0013]
(Example)
Inflow raw water W is household wastewater that has passed through a settling basin and a coarse screen in the previous stage, and is BOD 200 mg / l and turbidity component 200 mg / l.
The residue S discharged from the drum screen 2 has 98% hair, 0.4% hair, 1.5% paper, 0.1% plastic, and a moisture content of 92-95%. It was.
The hopper cleaning valve 10a repeats a 10-minute “closed” state and a 30-second “open” state alternately, and slightly deviates from this to dehydrate the motor 6a in a 10-minute “pause” state and 30-second state. The "running" state for 2 seconds was repeated alternately.
The water content of the residue S ′ discharged from the residue discharge port 6c of the dehydrator 6 was 75 to 85%.
Although the operation was continued for 3 months, the residue S did not clog the receiving port of the hopper 5. Further, the residue S ′ could not be discharged from the residue discharge port 6 c of the dehydrator 6.
[0014]
【The invention's effect】
According to the residue removing device of the present invention, it is possible to prevent the residue from being clogged at the receiving port of the hopper when the inflow raw water containing a large amount of residue continues. In addition, it is possible to prevent the residue from being discharged from the residue discharge port of the dehydrator when the inflow raw water containing almost no residue continues.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a residue removing device according to an embodiment of the present invention.
FIG. 2 is a time chart showing opening / closing control of a hopper cleaning valve and rotation control of a dehydrating motor in the residue removing device according to one embodiment of the present invention.
FIG. 3 is a schematic configuration diagram showing an example of a conventional residue removing device.
FIG. 4 is a schematic cross-sectional view of a drum screen.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Raw water introduction pipe 1a Inflow trough 2 Drum screen 2a Drum motor 2b Sediment discharge guide 3 Drum washing nozzle 4 Filtration water tank 5 Hopper 6 Dehydrator 6a Dehydration motor 6b Screw 6c Shredder discharge port 7 Dehydrated drain receiver 8 Saddle container 10 Hopper cleaning nozzle 10a Hopper cleaning valve 20 Control device 100 Screen residue removal device C Cleaning water F Filtration water S Screen residue (before dehydration)
S 'residue (after dehydration W inflow raw water

Claims (1)

し渣を含む流入原水をろ過水とし渣とに分別するドラムスクリーンと、そのドラムスクリーンから排出され落下してきたし渣を受け取るホッパと、そのホッパから落下してきたし渣をし渣排出口へとスクリューで重力に抗して押してその圧搾により脱水する脱水機とを備えたし渣除去装置であって、前記ホッパへ水を噴射するためのホッパ洗浄ノズルと、前記スクリューの回転と停止を所定周期で交互に反復させると共に前記ホッパ洗浄ノズルによる前記ホッパへの水の噴射を前記スクリューの休止時にのみ行わせる制御手段を設けたことを特徴とするし渣除去装置。Drum screen that separates inflow raw water containing debris into filtered water and separates into debris, a hopper that receives fallen debris that has been discharged from the drum screen, and a debris that has fallen from the hopper to the debris outlet A debris removal device comprising a dehydrator that depresses against gravity with a screw and dewaters by squeezing the hopper, a hopper washing nozzle for injecting water into the hopper , and rotation and stop of the screw at a predetermined cycle A debris removing apparatus , comprising: a control unit that alternately repeats the operation of the hopper cleaning nozzle and causes the hopper cleaning nozzle to inject water into the hopper only when the screw is stopped .
JP2000032556A 2000-02-10 2000-02-10 Screen removal device Expired - Lifetime JP4611480B2 (en)

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JP6194313B2 (en) * 2011-09-06 2017-09-06 アナエコー リミテッド Separation method and apparatus
JP6753704B2 (en) * 2016-06-09 2020-09-09 株式会社丸島アクアシステム Solid-liquid separator
JP6336664B1 (en) * 2017-08-08 2018-06-06 三菱重工環境・化学エンジニアリング株式会社 Sludge treatment system
JP7129629B2 (en) * 2019-10-11 2022-09-02 株式会社石垣 Method for cleaning drum-type solid-liquid separator
KR102559752B1 (en) * 2022-09-05 2023-07-26 강동석 multi-stage filtering type solid material reclaimer

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JPH03114585A (en) * 1989-09-29 1991-05-15 Sumitomo Jukikai Envirotec Kk Treatment of sludge
JPH03281098A (en) * 1990-03-29 1991-12-11 Ishigaki Mech Ind Co Screw press
JPH0578394U (en) * 1992-04-01 1993-10-26 日立金属株式会社 Screw press dehydrator
JPH0740086A (en) * 1993-07-29 1995-02-10 Ishigaki Mech Ind Co Operation control device of screw press
JPH10305298A (en) * 1997-05-07 1998-11-17 Nishihara Environ Sanit Res Corp Integrated screenings cleaning and dehydrating device
JPH11226789A (en) * 1998-02-19 1999-08-24 Shin Meiwa Ind Co Ltd Dehydrating machine
JP2000033398A (en) * 1998-07-21 2000-02-02 Nkk Corp Screen residue transportation method

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JPH03114585A (en) * 1989-09-29 1991-05-15 Sumitomo Jukikai Envirotec Kk Treatment of sludge
JPH03281098A (en) * 1990-03-29 1991-12-11 Ishigaki Mech Ind Co Screw press
JPH0578394U (en) * 1992-04-01 1993-10-26 日立金属株式会社 Screw press dehydrator
JPH0740086A (en) * 1993-07-29 1995-02-10 Ishigaki Mech Ind Co Operation control device of screw press
JPH10305298A (en) * 1997-05-07 1998-11-17 Nishihara Environ Sanit Res Corp Integrated screenings cleaning and dehydrating device
JPH11226789A (en) * 1998-02-19 1999-08-24 Shin Meiwa Ind Co Ltd Dehydrating machine
JP2000033398A (en) * 1998-07-21 2000-02-02 Nkk Corp Screen residue transportation method

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